deps: upgrade libuv to 665a316

88 files changed, 1146 insertions, 56391 deletions

diff --git a/LICENSE b/LICENSE
index 6913107334..8c7b54c7bf 100644
--- a/LICENSE
+++ b/LICENSE
@@ -84,46 +84,6 @@ maintained libraries. The externally maintained libraries used by Node are:
     OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   """
 
-- libev, located at deps/uv/src/unix/ev. libev's license follows:
-  """
-    All files in libev are Copyright (C)2007,2008,2009 Marc Alexander Lehmann.
-
-    Redistribution and use in source and binary forms, with or without
-    modification, are permitted provided that the following conditions are
-    met:
-
-        * Redistributions of source code must retain the above copyright
-          notice, this list of conditions and the following disclaimer.
-
-        * Redistributions in binary form must reproduce the above
-          copyright notice, this list of conditions and the following
-          disclaimer in the documentation and/or other materials provided
-          with the distribution.
-
-    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-    "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-    A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-    OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-    SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-    LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-    OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-    Alternatively, the contents of this package may be used under the terms
-    of the GNU General Public License ("GPL") version 2 or any later version,
-    in which case the provisions of the GPL are applicable instead of the
-    above. If you wish to allow the use of your version of this package only
-    under the terms of the GPL and not to allow others to use your version of
-    this file under the BSD license, indicate your decision by deleting the
-    provisions above and replace them with the notice and other provisions
-    required by the GPL in this and the other files of this package. If you do
-    not delete the provisions above, a recipient may use your version of this
-    file under either the BSD or the GPL.
-  """
-
 - C-Ares, an asynchronous DNS client, located at deps/cares. C-Ares license
   follows:
   """
diff --git a/deps/uv/.gitignore b/deps/uv/.gitignore
index fa9636d110..0a4d7dabe8 100644
--- a/deps/uv/.gitignore
+++ b/deps/uv/.gitignore
@@ -1,14 +1,16 @@
 *.swp
-*.o
-*.lo
-*.la
-*.a
+*.[oa]
+*.l[oa]
 *.opensdf
 *.orig
 *.sdf
 *.suo
 core
 vgcore.*
+
+/libuv.so
+/libuv.dylib
+
 /out/
 /build/gyp
 
diff --git a/deps/uv/LICENSE b/deps/uv/LICENSE
index 8ea2e36cc8..51c382cfb5 100644
--- a/deps/uv/LICENSE
+++ b/deps/uv/LICENSE
@@ -33,9 +33,6 @@ The externally maintained libraries used by libuv are:
 
   - ngx_queue.h (from Nginx), copyright Igor Sysoev. Two clause BSD license.
 
-  - libev, located at ev/ is copyright Marc Alexander Lehmann, and
-    dual-licensed under the MIT license and GPL2.
-
   - inet_pton and inet_ntop implementations, contained in src/inet.c, are
     copyright the Internet Systems Consortium, Inc., and licensed under the ISC
     license.
diff --git a/deps/uv/Makefile b/deps/uv/Makefile
index 5987547522..5b2ff7f1a3 100644
--- a/deps/uv/Makefile
+++ b/deps/uv/Makefile
@@ -26,6 +26,12 @@ endif
 
 CPPFLAGS += -Iinclude -Iinclude/uv-private
 
+ifeq (Darwin,$(uname_S))
+SOEXT = dylib
+else
+SOEXT = so
+endif
+
 ifneq (,$(findstring MINGW,$(uname_S)))
 include config-mingw.mk
 else
@@ -37,32 +43,23 @@ BENCHMARKS=test/blackhole-server.c test/echo-server.c test/dns-server.c test/ben
 
 all: libuv.a
 
-test/run-tests$(E): test/*.h test/run-tests.c $(RUNNER_SRC) test/runner-unix.c $(TESTS) libuv.a
-	$(CC) $(CPPFLAGS) $(RUNNER_CFLAGS) -o test/run-tests test/run-tests.c \
-		test/runner.c $(RUNNER_SRC) $(TESTS) libuv.a $(RUNNER_LIBS) $(RUNNER_LINKFLAGS)
+test/run-tests$(E): test/run-tests.c test/runner.c $(RUNNER_SRC) $(TESTS) libuv.$(SOEXT)
+	$(CC) $(CPPFLAGS) $(RUNNER_CFLAGS) -o $@ $^ $(RUNNER_LIBS) $(RUNNER_LINKFLAGS)
 
-test/run-benchmarks$(E): test/*.h test/run-benchmarks.c test/runner.c $(RUNNER_SRC) $(BENCHMARKS) libuv.a
-	$(CC) $(CPPFLAGS) $(RUNNER_CFLAGS) -o test/run-benchmarks test/run-benchmarks.c \
-		 test/runner.c $(RUNNER_SRC) $(BENCHMARKS) libuv.a $(RUNNER_LIBS) $(RUNNER_LINKFLAGS)
+test/run-benchmarks$(E): test/run-benchmarks.c test/runner.c $(RUNNER_SRC) $(BENCHMARKS) libuv.$(SOEXT)
+	$(CC) $(CPPFLAGS) $(RUNNER_CFLAGS) -o $@ $^ $(RUNNER_LIBS) $(RUNNER_LINKFLAGS)
 
 test/echo.o: test/echo.c test/echo.h
-	$(CC) $(CPPFLAGS) $(CFLAGS) -c test/echo.c -o test/echo.o
 
 
 .PHONY: clean clean-platform distclean distclean-platform test bench
 
 
 test: test/run-tests$(E)
-	test/run-tests
-
-#test-%:	test/run-tests$(E)
-#	test/run-tests $(@:test-%=%)
+	$<
 
 bench: test/run-benchmarks$(E)
-	test/run-benchmarks
-
-#bench-%:	test/run-benchmarks$(E)
-#	test/run-benchmarks $(@:bench-%=%)
+	$<
 
 clean: clean-platform
 	$(RM) -f src/*.o *.a test/run-tests$(E) test/run-benchmarks$(E)
diff --git a/deps/uv/README.md b/deps/uv/README.md
index e553fe81dd..2d8b4367c0 100644
--- a/deps/uv/README.md
+++ b/deps/uv/README.md
@@ -1,8 +1,8 @@
 # libuv [![Build Status](https://secure.travis-ci.org/joyent/libuv.png)](http://travis-ci.org/joyent/libuv)
 
 libuv is a new platform layer for Node. Its purpose is to abstract IOCP on
-Windows and libev on Unix systems. We intend to eventually contain all
-platform differences in this library.
+Windows and epoll/kqueue/event ports/etc. on Unix systems. We intend to
+eventually contain all platform differences in this library.
 
 http://nodejs.org/
 
diff --git a/deps/uv/config-unix.mk b/deps/uv/config-unix.mk
index b619359a77..04afa51094 100644
--- a/deps/uv/config-unix.mk
+++ b/deps/uv/config-unix.mk
@@ -21,12 +21,16 @@
 E=
 CSTDFLAG=--std=c89 -pedantic -Wall -Wextra -Wno-unused-parameter
 CFLAGS += -g
-CPPFLAGS += -Isrc -Isrc/unix/ev
+CPPFLAGS += -Isrc
 LINKFLAGS=-lm
 
 CPPFLAGS += -D_LARGEFILE_SOURCE
 CPPFLAGS += -D_FILE_OFFSET_BITS=64
 
+RUNNER_SRC=test/runner-unix.c
+RUNNER_CFLAGS=$(CFLAGS) -Itest
+RUNNER_LINKFLAGS=-L"$(PWD)" -luv -Xlinker -rpath -Xlinker "$(PWD)"
+
 OBJS += src/unix/async.o
 OBJS += src/unix/core.o
 OBJS += src/unix/dl.o
@@ -46,11 +50,16 @@ OBJS += src/unix/threadpool.o
 OBJS += src/unix/timer.o
 OBJS += src/unix/tty.o
 OBJS += src/unix/udp.o
+OBJS += src/fs-poll.o
+OBJS += src/uv-common.o
+OBJS += src/inet.o
 
 ifeq (SunOS,$(uname_S))
 EV_CONFIG=config_sunos.h
 CPPFLAGS += -D__EXTENSIONS__ -D_XOPEN_SOURCE=500
 LINKFLAGS+=-lkstat -lnsl -lsendfile -lsocket
+# Library dependencies are not transitive.
+RUNNER_LINKFLAGS += $(LINKFLAGS)
 OBJS += src/unix/sunos.o
 endif
 
@@ -64,7 +73,8 @@ endif
 ifeq (Darwin,$(uname_S))
 EV_CONFIG=config_darwin.h
 CPPFLAGS += -D_DARWIN_USE_64_BIT_INODE=1
-LINKFLAGS+=-framework CoreServices
+LINKFLAGS+=-framework CoreServices -dynamiclib -install_name "@rpath/libuv.dylib"
+SOEXT = dylib
 OBJS += src/unix/darwin.o
 OBJS += src/unix/kqueue.o
 OBJS += src/unix/fsevents.o
@@ -74,6 +84,7 @@ ifeq (Linux,$(uname_S))
 EV_CONFIG=config_linux.h
 CSTDFLAG += -D_GNU_SOURCE
 LINKFLAGS+=-ldl -lrt
+RUNNER_CFLAGS += -D_GNU_SOURCE
 OBJS += src/unix/linux/linux-core.o \
         src/unix/linux/inotify.o    \
         src/unix/linux/syscalls.o
@@ -115,39 +126,31 @@ LINKFLAGS+=
 OBJS += src/unix/cygwin.o
 endif
 
-# Need _GNU_SOURCE for strdup?
-RUNNER_CFLAGS=$(CFLAGS) -D_GNU_SOURCE
-RUNNER_LINKFLAGS=$(LINKFLAGS)
-
 ifeq (SunOS,$(uname_S))
 RUNNER_LINKFLAGS += -pthreads
 else
 RUNNER_LINKFLAGS += -pthread
 endif
 
-RUNNER_LIBS=
-RUNNER_SRC=test/runner-unix.c
-
-libuv.a: $(OBJS) src/fs-poll.o src/inet.o src/uv-common.o src/unix/ev/ev.o
+libuv.a: $(OBJS)
 	$(AR) rcs $@ $^
 
+libuv.$(SOEXT):	CFLAGS += -fPIC
+libuv.$(SOEXT):	$(OBJS)
+	$(CC) -shared -o $@ $^ $(LINKFLAGS)
+
 src/%.o: src/%.c include/uv.h include/uv-private/uv-unix.h
 	$(CC) $(CSTDFLAG) $(CPPFLAGS) $(CFLAGS) -c $< -o $@
 
 src/unix/%.o: src/unix/%.c include/uv.h include/uv-private/uv-unix.h src/unix/internal.h
 	$(CC) $(CSTDFLAG) $(CPPFLAGS) $(CFLAGS) -c $< -o $@
 
-src/unix/ev/ev.o: src/unix/ev/ev.c
-	$(CC) $(CPPFLAGS) $(CFLAGS) -c src/unix/ev/ev.c -o src/unix/ev/ev.o -DEV_CONFIG_H=\"$(EV_CONFIG)\"
-
 clean-platform:
 	-rm -f src/unix/*.o
-	-rm -f src/unix/ev/*.o
 	-rm -f src/unix/linux/*.o
 	-rm -rf test/run-tests.dSYM run-benchmarks.dSYM
 
 distclean-platform:
 	-rm -f src/unix/*.o
-	-rm -f src/unix/ev/*.o
 	-rm -f src/unix/linux/*.o
 	-rm -rf test/run-tests.dSYM run-benchmarks.dSYM
diff --git a/deps/uv/gyp_uv b/deps/uv/gyp_uv
index bdbf495d1f..81cce5d529 100755
--- a/deps/uv/gyp_uv
+++ b/deps/uv/gyp_uv
@@ -72,13 +72,14 @@ if __name__ == '__main__':
     args.append('-Dgcc_version=%d' % (10 * major + minor))
     args.append('-Dclang=%d' % int(is_clang))
 
-  if not any(a.startswith('-Dtarget_arch') for a in args):
+  if not any(a.startswith('-Dtarget_arch=') for a in args):
     args.append('-Dtarget_arch=ia32')
 
-  if not any(a.startswith('-Dlibrary') for a in args):
+  if not any(a.startswith('-Dlibrary=') for a in args):
     args.append('-Dlibrary=static_library')
 
-  args.append('-Dcomponent=static_library')
+  if not any(a.startswith('-Dcomponent=') for a in args):
+    args.append('-Dcomponent=static_library')
 
   gyp_args = list(args)
   print gyp_args
diff --git a/deps/uv/include/uv-private/ev.h b/deps/uv/include/uv-private/ev.h
deleted file mode 100644
index 11e81cda5e..0000000000
--- a/deps/uv/include/uv-private/ev.h
+++ /dev/null
@@ -1,838 +0,0 @@
-/*
- * libev native API header
- *
- * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modifica-
- * tion, are permitted provided that the following conditions are met:
- *
- *   1.  Redistributions of source code must retain the above copyright notice,
- *       this list of conditions and the following disclaimer.
- *
- *   2.  Redistributions in binary form must reproduce the above copyright
- *       notice, this list of conditions and the following disclaimer in the
- *       documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
- * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
- * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
- * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Alternatively, the contents of this file may be used under the terms of
- * the GNU General Public License ("GPL") version 2 or any later version,
- * in which case the provisions of the GPL are applicable instead of
- * the above. If you wish to allow the use of your version of this file
- * only under the terms of the GPL and not to allow others to use your
- * version of this file under the BSD license, indicate your decision
- * by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL. If you do not delete the
- * provisions above, a recipient may use your version of this file under
- * either the BSD or the GPL.
- */
-
-#ifndef EV_H_
-#define EV_H_
-
-#ifdef __cplusplus
-# define EV_CPP(x) x
-#else
-# define EV_CPP(x)
-#endif
-
-EV_CPP(extern "C" {)
-
-#ifdef __GNUC__
-# define EV_MAYBE_UNUSED __attribute__ ((unused))
-#else
-# define EV_MAYBE_UNUSED
-#endif
-
-/*****************************************************************************/
-
-/* pre-4.0 compatibility */
-#ifndef EV_COMPAT3
-# define EV_COMPAT3 1
-#endif
-
-#ifndef EV_FEATURES
-# define EV_FEATURES 0x7f
-#endif
-
-#define EV_FEATURE_CODE     ((EV_FEATURES) &  1)
-#define EV_FEATURE_DATA     ((EV_FEATURES) &  2)
-#define EV_FEATURE_CONFIG   ((EV_FEATURES) &  4)
-#define EV_FEATURE_API      ((EV_FEATURES) &  8)
-#define EV_FEATURE_WATCHERS ((EV_FEATURES) & 16)
-#define EV_FEATURE_BACKENDS ((EV_FEATURES) & 32)
-#define EV_FEATURE_OS       ((EV_FEATURES) & 64)
-
-/* these priorities are inclusive, higher priorities will be invoked earlier */
-#ifndef EV_MINPRI
-# define EV_MINPRI (EV_FEATURE_CONFIG ? -2 : 0)
-#endif
-#ifndef EV_MAXPRI
-# define EV_MAXPRI (EV_FEATURE_CONFIG ? +2 : 0)
-#endif
-
-#ifndef EV_MULTIPLICITY
-# define EV_MULTIPLICITY EV_FEATURE_CONFIG
-#endif
-
-#ifndef EV_PERIODIC_ENABLE
-# define EV_PERIODIC_ENABLE EV_FEATURE_WATCHERS
-#endif
-
-#ifndef EV_STAT_ENABLE
-# define EV_STAT_ENABLE EV_FEATURE_WATCHERS
-#endif
-
-#ifndef EV_PREPARE_ENABLE
-# define EV_PREPARE_ENABLE EV_FEATURE_WATCHERS
-#endif
-
-#ifndef EV_CHECK_ENABLE
-# define EV_CHECK_ENABLE EV_FEATURE_WATCHERS
-#endif
-
-#ifndef EV_IDLE_ENABLE
-# define EV_IDLE_ENABLE EV_FEATURE_WATCHERS
-#endif
-
-#ifndef EV_FORK_ENABLE
-# define EV_FORK_ENABLE EV_FEATURE_WATCHERS
-#endif
-
-#ifndef EV_CLEANUP_ENABLE
-# define EV_CLEANUP_ENABLE EV_FEATURE_WATCHERS
-#endif
-
-#ifndef EV_SIGNAL_ENABLE
-# define EV_SIGNAL_ENABLE EV_FEATURE_WATCHERS
-#endif
-
-#ifndef EV_CHILD_ENABLE
-# ifdef _WIN32
-#  define EV_CHILD_ENABLE 0
-# else
-#  define EV_CHILD_ENABLE EV_FEATURE_WATCHERS
-#endif
-#endif
-
-#ifndef EV_ASYNC_ENABLE
-# define EV_ASYNC_ENABLE EV_FEATURE_WATCHERS
-#endif
-
-#ifndef EV_EMBED_ENABLE
-# define EV_EMBED_ENABLE EV_FEATURE_WATCHERS
-#endif
-
-#ifndef EV_WALK_ENABLE
-# define EV_WALK_ENABLE 0 /* not yet */
-#endif
-
-/*****************************************************************************/
-
-#if EV_CHILD_ENABLE && !EV_SIGNAL_ENABLE
-# undef EV_SIGNAL_ENABLE
-# define EV_SIGNAL_ENABLE 1
-#endif
-
-/*****************************************************************************/
-
-typedef double ev_tstamp;
-
-#ifndef EV_ATOMIC_T
-# include <signal.h>
-# define EV_ATOMIC_T sig_atomic_t volatile
-#endif
-
-#if EV_STAT_ENABLE
-# ifdef _WIN32
-#  include <time.h>
-#  include <sys/types.h>
-# endif
-# include <sys/stat.h>
-#endif
-
-/* support multiple event loops? */
-#if EV_MULTIPLICITY
-struct ev_loop;
-# define EV_P  struct ev_loop *loop               /* a loop as sole parameter in a declaration */
-# define EV_P_ EV_P,                              /* a loop as first of multiple parameters */
-# define EV_A  loop                               /* a loop as sole argument to a function call */
-# define EV_A_ EV_A,                              /* a loop as first of multiple arguments */
-# define EV_DEFAULT_UC  ev_default_loop_uc_ ()    /* the default loop, if initialised, as sole arg */
-# define EV_DEFAULT_UC_ EV_DEFAULT_UC,            /* the default loop as first of multiple arguments */
-# define EV_DEFAULT  ev_default_loop (0)          /* the default loop as sole arg */
-# define EV_DEFAULT_ EV_DEFAULT,                  /* the default loop as first of multiple arguments */
-#else
-# define EV_P void
-# define EV_P_
-# define EV_A
-# define EV_A_
-# define EV_DEFAULT
-# define EV_DEFAULT_
-# define EV_DEFAULT_UC
-# define EV_DEFAULT_UC_
-# undef EV_EMBED_ENABLE
-#endif
-
-/* EV_INLINE is used for functions in header files */
-#if __STDC_VERSION__ >= 199901L && __GNUC__ >= 3
-# define EV_INLINE static inline
-#else
-# define EV_INLINE static
-#endif
-
-/* EV_PROTOTYPES can be used to switch of prototype declarations */
-#ifndef EV_PROTOTYPES
-# define EV_PROTOTYPES 1
-#endif
-
-/*****************************************************************************/
-
-#define EV_VERSION_MAJOR 4
-#define EV_VERSION_MINOR 4
-
-/* eventmask, revents, events... */
-enum {
-  EV_UNDEF    =         -1, /* guaranteed to be invalid */
-  EV_NONE     =       0x00, /* no events */
-  EV_READ     =       0x01, /* ev_io detected read will not block */
-  EV_WRITE    =       0x02, /* ev_io detected write will not block */
-  EV_LIBUV_KQUEUE_HACK = 0x40,
-  EV__IOFDSET =       0x80, /* internal use only */
-  EV_IO       =    EV_READ, /* alias for type-detection */
-  EV_TIMER    = 0x00000100, /* timer timed out */
-#if EV_COMPAT3
-  EV_TIMEOUT  =   EV_TIMER, /* pre 4.0 API compatibility */
-#endif
-  EV_PERIODIC = 0x00000200, /* periodic timer timed out */
-  EV_SIGNAL   = 0x00000400, /* signal was received */
-  EV_CHILD    = 0x00000800, /* child/pid had status change */
-  EV_STAT     = 0x00001000, /* stat data changed */
-  EV_IDLE     = 0x00002000, /* event loop is idling */
-  EV_PREPARE  = 0x00004000, /* event loop about to poll */
-  EV_CHECK    = 0x00008000, /* event loop finished poll */
-  EV_EMBED    = 0x00010000, /* embedded event loop needs sweep */
-  EV_FORK     = 0x00020000, /* event loop resumed in child */
-  EV_CLEANUP  = 0x00040000, /* event loop resumed in child */
-  EV_ASYNC    = 0x00080000, /* async intra-loop signal */
-  EV_CUSTOM   = 0x01000000, /* for use by user code */
-  EV_ERROR    = (-2147483647 - 1) /* sent when an error occurs */
-};
-
-/* can be used to add custom fields to all watchers, while losing binary compatibility */
-#ifndef EV_COMMON
-# define EV_COMMON void *data;
-#endif
-
-#ifndef EV_CB_DECLARE
-# define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents);
-#endif
-#ifndef EV_CB_INVOKE
-# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))
-#endif
-
-/* not official, do not use */
-#define EV_CB(type,name) void name (EV_P_ struct ev_ ## type *w, int revents)
-
-/*
- * struct member types:
- * private: you may look at them, but not change them,
- *          and they might not mean anything to you.
- * ro: can be read anytime, but only changed when the watcher isn't active.
- * rw: can be read and modified anytime, even when the watcher is active.
- *
- * some internal details that might be helpful for debugging:
- *
- * active is either 0, which means the watcher is not active,
- *           or the array index of the watcher (periodics, timers)
- *           or the array index + 1 (most other watchers)
- *           or simply 1 for watchers that aren't in some array.
- * pending is either 0, in which case the watcher isn't,
- *           or the array index + 1 in the pendings array.
- */
-
-#if EV_MINPRI == EV_MAXPRI
-# define EV_DECL_PRIORITY
-#elif !defined (EV_DECL_PRIORITY)
-# define EV_DECL_PRIORITY int priority;
-#endif
-
-/* shared by all watchers */
-#define EV_WATCHER(type)			\
-  int active; /* private */			\
-  int pending; /* private */			\
-  EV_DECL_PRIORITY /* private */		\
-  EV_COMMON /* rw */				\
-  EV_CB_DECLARE (type) /* private */
-
-#define EV_WATCHER_LIST(type)			\
-  EV_WATCHER (type)				\
-  struct ev_watcher_list *next; /* private */
-
-#define EV_WATCHER_TIME(type)			\
-  EV_WATCHER (type)				\
-  ev_tstamp at;     /* private */
-
-/* base class, nothing to see here unless you subclass */
-typedef struct ev_watcher
-{
-  EV_WATCHER (ev_watcher)
-} ev_watcher;
-
-/* base class, nothing to see here unless you subclass */
-typedef struct ev_watcher_list
-{
-  EV_WATCHER_LIST (ev_watcher_list)
-} ev_watcher_list;
-
-/* base class, nothing to see here unless you subclass */
-typedef struct ev_watcher_time
-{
-  EV_WATCHER_TIME (ev_watcher_time)
-} ev_watcher_time;
-
-/* invoked when fd is either EV_READable or EV_WRITEable */
-/* revent EV_READ, EV_WRITE */
-typedef struct ev_io
-{
-  EV_WATCHER_LIST (ev_io)
-
-  int fd;     /* ro */
-  int events; /* ro */
-} ev_io;
-
-/* invoked after a specific time, repeatable (based on monotonic clock) */
-/* revent EV_TIMEOUT */
-typedef struct ev_timer
-{
-  EV_WATCHER_TIME (ev_timer)
-
-  ev_tstamp repeat; /* rw */
-} ev_timer;
-
-/* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */
-/* revent EV_PERIODIC */
-typedef struct ev_periodic
-{
-  EV_WATCHER_TIME (ev_periodic)
-
-  ev_tstamp offset; /* rw */
-  ev_tstamp interval; /* rw */
-  ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */
-} ev_periodic;
-
-/* invoked when the given signal has been received */
-/* revent EV_SIGNAL */
-typedef struct ev_signal
-{
-  EV_WATCHER_LIST (ev_signal)
-
-  int signum; /* ro */
-} ev_signal;
-
-/* invoked when sigchld is received and waitpid indicates the given pid */
-/* revent EV_CHILD */
-/* does not support priorities */
-typedef struct ev_child
-{
-  EV_WATCHER_LIST (ev_child)
-
-  int flags;   /* private */
-  int pid;     /* ro */
-  int rpid;    /* rw, holds the received pid */
-  int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */
-} ev_child;
-
-#if EV_STAT_ENABLE
-/* st_nlink = 0 means missing file or other error */
-# ifdef _WIN32
-typedef struct _stati64 ev_statdata;
-# else
-typedef struct stat ev_statdata;
-# endif
-
-/* invoked each time the stat data changes for a given path */
-/* revent EV_STAT */
-typedef struct ev_stat
-{
-  EV_WATCHER_LIST (ev_stat)
-
-  ev_timer timer;     /* private */
-  ev_tstamp interval; /* ro */
-  const char *path;   /* ro */
-  ev_statdata prev;   /* ro */
-  ev_statdata attr;   /* ro */
-
-  int wd; /* wd for inotify, fd for kqueue */
-} ev_stat;
-#endif
-
-#if EV_IDLE_ENABLE
-/* invoked when the nothing else needs to be done, keeps the process from blocking */
-/* revent EV_IDLE */
-typedef struct ev_idle
-{
-  EV_WATCHER (ev_idle)
-} ev_idle;
-#endif
-
-/* invoked for each run of the mainloop, just before the blocking call */
-/* you can still change events in any way you like */
-/* revent EV_PREPARE */
-typedef struct ev_prepare
-{
-  EV_WATCHER (ev_prepare)
-} ev_prepare;
-
-/* invoked for each run of the mainloop, just after the blocking call */
-/* revent EV_CHECK */
-typedef struct ev_check
-{
-  EV_WATCHER (ev_check)
-} ev_check;
-
-#if EV_FORK_ENABLE
-/* the callback gets invoked before check in the child process when a fork was detected */
-/* revent EV_FORK */
-typedef struct ev_fork
-{
-  EV_WATCHER (ev_fork)
-} ev_fork;
-#endif
-
-#if EV_CLEANUP_ENABLE
-/* is invoked just before the loop gets destroyed */
-/* revent EV_CLEANUP */
-typedef struct ev_cleanup
-{
-  EV_WATCHER (ev_cleanup)
-} ev_cleanup;
-#endif
-
-#if EV_EMBED_ENABLE
-/* used to embed an event loop inside another */
-/* the callback gets invoked when the event loop has handled events, and can be 0 */
-typedef struct ev_embed
-{
-  EV_WATCHER (ev_embed)
-
-  struct ev_loop *other; /* ro */
-  ev_io io;              /* private */
-  ev_prepare prepare;    /* private */
-  ev_check check;        /* unused */
-  ev_timer timer;        /* unused */
-  ev_periodic periodic;  /* unused */
-  ev_idle idle;          /* unused */
-  ev_fork fork;          /* private */
-#if EV_CLEANUP_ENABLE
-  ev_cleanup cleanup;    /* unused */
-#endif
-} ev_embed;
-#endif
-
-#if EV_ASYNC_ENABLE
-/* invoked when somebody calls ev_async_send on the watcher */
-/* revent EV_ASYNC */
-typedef struct ev_async
-{
-  EV_WATCHER (ev_async)
-
-  EV_ATOMIC_T sent; /* private */
-} ev_async;
-
-# define ev_async_pending(w) (+(w)->sent)
-#endif
-
-/* the presence of this union forces similar struct layout */
-union ev_any_watcher
-{
-  struct ev_watcher w;
-  struct ev_watcher_list wl;
-
-  struct ev_io io;
-  struct ev_timer timer;
-  struct ev_periodic periodic;
-  struct ev_signal signal;
-  struct ev_child child;
-#if EV_STAT_ENABLE
-  struct ev_stat stat;
-#endif
-#if EV_IDLE_ENABLE
-  struct ev_idle idle;
-#endif
-  struct ev_prepare prepare;
-  struct ev_check check;
-#if EV_FORK_ENABLE
-  struct ev_fork fork;
-#endif
-#if EV_CLEANUP_ENABLE
-  struct ev_cleanup cleanup;
-#endif
-#if EV_EMBED_ENABLE
-  struct ev_embed embed;
-#endif
-#if EV_ASYNC_ENABLE
-  struct ev_async async;
-#endif
-};
-
-/* flag bits for ev_default_loop and ev_loop_new */
-enum {
-  /* the default */
-  EVFLAG_AUTO      = 0x00000000U, /* not quite a mask */
-  /* flag bits */
-  EVFLAG_NOENV     = 0x01000000U, /* do NOT consult environment */
-  EVFLAG_FORKCHECK = 0x02000000U, /* check for a fork in each iteration */
-  /* debugging/feature disable */
-  EVFLAG_NOINOTIFY = 0x00100000U, /* do not attempt to use inotify */
-#if EV_COMPAT3
-  EVFLAG_NOSIGFD   = 0, /* compatibility to pre-3.9 */
-#endif
-  EVFLAG_SIGNALFD  = 0x00200000U, /* attempt to use signalfd */
-  EVFLAG_NOSIGMASK = 0x00400000U  /* avoid modifying the signal mask */
-};
-
-/* method bits to be ored together */
-enum {
-  EVBACKEND_SELECT  = 0x00000001U, /* about anywhere */
-  EVBACKEND_POLL    = 0x00000002U, /* !win */
-  EVBACKEND_EPOLL   = 0x00000004U, /* linux */
-  EVBACKEND_KQUEUE  = 0x00000008U, /* bsd */
-  EVBACKEND_DEVPOLL = 0x00000010U, /* solaris 8 */ /* NYI */
-  EVBACKEND_PORT    = 0x00000020U, /* solaris 10 */
-  EVBACKEND_ALL     = 0x0000003FU, /* all known backends */
-  EVBACKEND_MASK    = 0x0000FFFFU  /* all future backends */
-};
-
-#if EV_PROTOTYPES
-int ev_version_major (void);
-int ev_version_minor (void);
-
-unsigned int ev_supported_backends (void);
-unsigned int ev_recommended_backends (void);
-unsigned int ev_embeddable_backends (void);
-
-ev_tstamp ev_time (void);
-void ev_sleep (ev_tstamp delay); /* sleep for a while */
-
-/* Sets the allocation function to use, works like realloc.
- * It is used to allocate and free memory.
- * If it returns zero when memory needs to be allocated, the library might abort
- * or take some potentially destructive action.
- * The default is your system realloc function.
- */
-void ev_set_allocator (void *(*cb)(void *ptr, long size));
-
-/* set the callback function to call on a
- * retryable syscall error
- * (such as failed select, poll, epoll_wait)
- */
-void ev_set_syserr_cb (void (*cb)(const char *msg));
-
-#if EV_MULTIPLICITY
-
-/* the default loop is the only one that handles signals and child watchers */
-/* you can call this as often as you like */
-struct ev_loop *ev_default_loop (unsigned int flags EV_CPP (= 0));
-
-EV_INLINE struct ev_loop *
-EV_MAYBE_UNUSED ev_default_loop_uc_ (void)
-{
-  extern struct ev_loop *ev_default_loop_ptr;
-
-  return ev_default_loop_ptr;
-}
-
-EV_INLINE int
-EV_MAYBE_UNUSED ev_is_default_loop (EV_P)
-{
-  return EV_A == EV_DEFAULT_UC;
-}
-
-/* create and destroy alternative loops that don't handle signals */
-struct ev_loop *ev_loop_new (unsigned int flags EV_CPP (= 0));
-
-int ev_loop_refcount (EV_P);
-
-ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */
-
-#else
-
-int ev_default_loop (unsigned int flags EV_CPP (= 0)); /* returns true when successful */
-
-EV_INLINE ev_tstamp
-ev_now (void)
-{
-  extern ev_tstamp ev_rt_now;
-
-  return ev_rt_now;
-}
-
-/* looks weird, but ev_is_default_loop (EV_A) still works if this exists */
-EV_INLINE int
-ev_is_default_loop (void)
-{
-  return 1;
-}
-
-#endif /* multiplicity */
-
-/* destroy event loops, also works for the default loop */
-void ev_loop_destroy (EV_P);
-
-/* this needs to be called after fork, to duplicate the loop */
-/* when you want to re-use it in the child */
-/* you can call it in either the parent or the child */
-/* you can actually call it at any time, anywhere :) */
-void ev_loop_fork (EV_P);
-
-unsigned int ev_backend (EV_P); /* backend in use by loop */
-
-void ev_now_update (EV_P); /* update event loop time */
-
-#if EV_WALK_ENABLE
-/* walk (almost) all watchers in the loop of a given type, invoking the */
-/* callback on every such watcher. The callback might stop the watcher, */
-/* but do nothing else with the loop */
-void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w));
-#endif
-
-#endif /* prototypes */
-
-/* ev_run flags values */
-enum {
-  EVRUN_NOWAIT = 1, /* do not block/wait */
-  EVRUN_ONCE   = 2  /* block *once* only */
-};
-
-/* ev_break how values */
-enum {
-  EVBREAK_CANCEL = 0, /* undo unloop */
-  EVBREAK_ONE    = 1, /* unloop once */
-  EVBREAK_ALL    = 2  /* unloop all loops */
-};
-
-#if EV_PROTOTYPES
-void ev_run (EV_P_ int flags EV_CPP (= 0));
-void ev_break (EV_P_ int how EV_CPP (= EVBREAK_ONE)); /* break out of the loop */
-
-/*
- * ref/unref can be used to add or remove a refcount on the mainloop. every watcher
- * keeps one reference. if you have a long-running watcher you never unregister that
- * should not keep ev_loop from running, unref() after starting, and ref() before stopping.
- */
-void ev_ref   (EV_P);
-void ev_unref (EV_P);
-
-/*
- * convenience function, wait for a single event, without registering an event watcher
- * if timeout is < 0, do wait indefinitely
- */
-void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg);
-
-# if EV_FEATURE_API
-unsigned int ev_iteration (EV_P); /* number of loop iterations */
-unsigned int ev_depth     (EV_P); /* #ev_loop enters - #ev_loop leaves */
-void         ev_verify    (EV_P); /* abort if loop data corrupted */
-
-void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
-void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
-
-/* advanced stuff for threading etc. support, see docs */
-void ev_set_userdata (EV_P_ void *data);
-void *ev_userdata (EV_P);
-void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P));
-void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P));
-
-unsigned int ev_pending_count (EV_P); /* number of pending events, if any */
-void ev_invoke_pending (EV_P); /* invoke all pending watchers */
-
-/*
- * stop/start the timer handling.
- */
-void ev_suspend (EV_P);
-void ev_resume  (EV_P);
-#endif
-
-#endif
-
-/* these may evaluate ev multiple times, and the other arguments at most once */
-/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */
-#define ev_init(ev,cb_) do {			\
-  ((ev_watcher *)(void *)(ev))->active  =	\
-  ((ev_watcher *)(void *)(ev))->pending = 0;	\
-  ev_set_priority ((ev), 0);			\
-  ev_set_cb ((ev), cb_);			\
-} while (0)
-
-#define ev_io_set(ev,fd_,events_)            do { (ev)->fd = (fd_); (ev)->events = (events_) | EV__IOFDSET; } while (0)
-#define ev_timer_set(ev,after_,repeat_)      do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0)
-#define ev_periodic_set(ev,ofs_,ival_,rcb_)  do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb = (rcb_); } while (0)
-#define ev_signal_set(ev,signum_)            do { (ev)->signum = (signum_); } while (0)
-#define ev_child_set(ev,pid_,trace_)         do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0)
-#define ev_stat_set(ev,path_,interval_)      do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0)
-#define ev_idle_set(ev)                      /* nop, yes, this is a serious in-joke */
-#define ev_prepare_set(ev)                   /* nop, yes, this is a serious in-joke */
-#define ev_check_set(ev)                     /* nop, yes, this is a serious in-joke */
-#define ev_embed_set(ev,other_)              do { (ev)->other = (other_); } while (0)
-#define ev_fork_set(ev)                      /* nop, yes, this is a serious in-joke */
-#define ev_cleanup_set(ev)                   /* nop, yes, this is a serious in-joke */
-#define ev_async_set(ev)                     /* nop, yes, this is a serious in-joke */
-
-#define ev_io_init(ev,cb,fd,events)          do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)
-#define ev_timer_init(ev,cb,after,repeat)    do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)
-#define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0)
-#define ev_signal_init(ev,cb,signum)         do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)
-#define ev_child_init(ev,cb,pid,trace)       do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0)
-#define ev_stat_init(ev,cb,path,interval)    do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0)
-#define ev_idle_init(ev,cb)                  do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
-#define ev_prepare_init(ev,cb)               do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
-#define ev_check_init(ev,cb)                 do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
-#define ev_embed_init(ev,cb,other)           do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0)
-#define ev_fork_init(ev,cb)                  do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)
-#define ev_cleanup_init(ev,cb)               do { ev_init ((ev), (cb)); ev_cleanup_set ((ev)); } while (0)
-#define ev_async_init(ev,cb)                 do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
-
-#define ev_is_pending(ev)                    (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
-#define ev_is_active(ev)                     (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */
-
-#define ev_cb(ev)                            (ev)->cb /* rw */
-
-#if EV_MINPRI == EV_MAXPRI
-# define ev_priority(ev)                     ((ev), EV_MINPRI)
-# define ev_set_priority(ev,pri)             ((ev), (pri))
-#else
-# define ev_priority(ev)                     (+(((ev_watcher *)(void *)(ev))->priority))
-# define ev_set_priority(ev,pri)             (   (ev_watcher *)(void *)(ev))->priority = (pri)
-#endif
-
-#define ev_periodic_at(ev)                   (+((ev_watcher_time *)(ev))->at)
-
-#ifndef ev_set_cb
-# define ev_set_cb(ev,cb_)                   ev_cb (ev) = (cb_)
-#endif
-
-/* stopping (enabling, adding) a watcher does nothing if it is already running */
-/* stopping (disabling, deleting) a watcher does nothing unless its already running */
-#if EV_PROTOTYPES
-
-/* feeds an event into a watcher as if the event actually occured */
-/* accepts any ev_watcher type */
-void ev_feed_event     (EV_P_ void *w, int revents);
-void ev_feed_fd_event  (EV_P_ int fd, int revents);
-#if EV_SIGNAL_ENABLE
-void ev_feed_signal    (int signum);
-void ev_feed_signal_event (EV_P_ int signum);
-#endif
-void ev_invoke         (EV_P_ void *w, int revents);
-int  ev_clear_pending  (EV_P_ void *w);
-
-void ev_io_start       (EV_P_ ev_io *w);
-void ev_io_stop        (EV_P_ ev_io *w);
-
-void ev_timer_start    (EV_P_ ev_timer *w);
-void ev_timer_stop     (EV_P_ ev_timer *w);
-/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */
-void ev_timer_again    (EV_P_ ev_timer *w);
-/* return remaining time */
-ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w);
-
-#if EV_PERIODIC_ENABLE
-void ev_periodic_start (EV_P_ ev_periodic *w);
-void ev_periodic_stop  (EV_P_ ev_periodic *w);
-void ev_periodic_again (EV_P_ ev_periodic *w);
-#endif
-
-/* only supported in the default loop */
-#if EV_SIGNAL_ENABLE
-void ev_signal_start   (EV_P_ ev_signal *w);
-void ev_signal_stop    (EV_P_ ev_signal *w);
-#endif
-
-/* only supported in the default loop */
-# if EV_CHILD_ENABLE
-void ev_child_start    (EV_P_ ev_child *w);
-void ev_child_stop     (EV_P_ ev_child *w);
-# endif
-
-# if EV_STAT_ENABLE
-void ev_stat_start     (EV_P_ ev_stat *w);
-void ev_stat_stop      (EV_P_ ev_stat *w);
-void ev_stat_stat      (EV_P_ ev_stat *w);
-# endif
-
-# if EV_IDLE_ENABLE
-void ev_idle_start     (EV_P_ ev_idle *w);
-void ev_idle_stop      (EV_P_ ev_idle *w);
-# endif
-
-#if EV_PREPARE_ENABLE
-void ev_prepare_start  (EV_P_ ev_prepare *w);
-void ev_prepare_stop   (EV_P_ ev_prepare *w);
-#endif
-
-#if EV_CHECK_ENABLE
-void ev_check_start    (EV_P_ ev_check *w);
-void ev_check_stop     (EV_P_ ev_check *w);
-#endif
-
-# if EV_FORK_ENABLE
-void ev_fork_start     (EV_P_ ev_fork *w);
-void ev_fork_stop      (EV_P_ ev_fork *w);
-# endif
-
-# if EV_CLEANUP_ENABLE
-void ev_cleanup_start  (EV_P_ ev_cleanup *w);
-void ev_cleanup_stop   (EV_P_ ev_cleanup *w);
-# endif
-
-# if EV_EMBED_ENABLE
-/* only supported when loop to be embedded is in fact embeddable */
-void ev_embed_start    (EV_P_ ev_embed *w);
-void ev_embed_stop     (EV_P_ ev_embed *w);
-void ev_embed_sweep    (EV_P_ ev_embed *w);
-# endif
-
-# if EV_ASYNC_ENABLE
-void ev_async_start    (EV_P_ ev_async *w);
-void ev_async_stop     (EV_P_ ev_async *w);
-void ev_async_send     (EV_P_ ev_async *w);
-# endif
-
-#if EV_COMPAT3
-  #define EVLOOP_NONBLOCK EVRUN_NOWAIT
-  #define EVLOOP_ONESHOT  EVRUN_ONCE
-  #define EVUNLOOP_CANCEL EVBREAK_CANCEL
-  #define EVUNLOOP_ONE    EVBREAK_ONE
-  #define EVUNLOOP_ALL    EVBREAK_ALL
-  #if EV_PROTOTYPES
-    EV_INLINE void EV_MAYBE_UNUSED ev_loop   (EV_P_ int flags) { ev_run   (EV_A_ flags); }
-    EV_INLINE void EV_MAYBE_UNUSED ev_unloop (EV_P_ int how  ) { ev_break (EV_A_ how  ); }
-    EV_INLINE void EV_MAYBE_UNUSED ev_default_destroy (void) { ev_loop_destroy (EV_DEFAULT); }
-    EV_INLINE void EV_MAYBE_UNUSED ev_default_fork    (void) { ev_loop_fork    (EV_DEFAULT); }
-    #if EV_FEATURE_API
-      EV_INLINE unsigned int EV_MAYBE_UNUSED ev_loop_count  (EV_P) { return ev_iteration  (EV_A); }
-      EV_INLINE unsigned int EV_MAYBE_UNUSED ev_loop_depth  (EV_P) { return ev_depth      (EV_A); }
-      EV_INLINE void         EV_MAYBE_UNUSED ev_loop_verify (EV_P) {        ev_verify     (EV_A); }
-    #endif
-  #endif
-#else
-  typedef struct ev_loop ev_loop;
-#endif
-
-#endif
-
-EV_CPP(})
-
-#endif
-
diff --git a/deps/uv/include/uv-private/uv-bsd.h b/deps/uv/include/uv-private/uv-bsd.h
index e4039abf31..fc253aa89b 100644
--- a/deps/uv/include/uv-private/uv-bsd.h
+++ b/deps/uv/include/uv-private/uv-bsd.h
@@ -23,8 +23,6 @@
 #define UV_BSD_H
 
 #define UV_PLATFORM_FS_EVENT_FIELDS                                           \
-  ev_io event_watcher;                                                        \
-  int fflags;                                                                 \
-  int fd;                                                                     \
+  uv__io_t event_watcher;                                                     \
 
 #endif /* UV_BSD_H */
diff --git a/deps/uv/include/uv-private/uv-darwin.h b/deps/uv/include/uv-private/uv-darwin.h
index 6a3ab4a3fd..c4bfd0ff9e 100644
--- a/deps/uv/include/uv-private/uv-darwin.h
+++ b/deps/uv/include/uv-private/uv-darwin.h
@@ -39,9 +39,7 @@
   ngx_queue_t cf_signals;                                                     \
 
 #define UV_PLATFORM_FS_EVENT_FIELDS                                           \
-  ev_io event_watcher;                                                        \
-  int fflags;                                                                 \
-  int fd;                                                                     \
+  uv__io_t event_watcher;                                                     \
   char* realpath;                                                             \
   int realpath_len;                                                           \
   int cf_flags;                                                               \
diff --git a/deps/uv/include/uv-private/uv-unix.h b/deps/uv/include/uv-private/uv-unix.h
index 7b3554a301..683a9c9298 100644
--- a/deps/uv/include/uv-private/uv-unix.h
+++ b/deps/uv/include/uv-private/uv-unix.h
@@ -24,8 +24,6 @@
 
 #include "ngx-queue.h"
 
-#include "ev.h"
-
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
@@ -46,11 +44,18 @@
 struct uv__io_s;
 struct uv_loop_s;
 
+typedef void (*uv__io_cb)(struct uv_loop_s* loop,
+                          struct uv__io_s* w,
+                          unsigned int events);
 typedef struct uv__io_s uv__io_t;
-typedef void (*uv__io_cb)(struct uv_loop_s* loop, uv__io_t* handle, int events);
 
 struct uv__io_s {
-  ev_io io_watcher;
+  uv__io_cb cb;
+  ngx_queue_t pending_queue;
+  ngx_queue_t watcher_queue;
+  unsigned int pevents; /* Pending event mask i.e. mask at next tick. */
+  unsigned int events;  /* Current event mask. */
+  int fd;
 };
 
 struct uv__work {
@@ -135,7 +140,12 @@ typedef struct {
 
 #define UV_LOOP_PRIVATE_FIELDS                                                \
   unsigned long flags;                                                        \
-  struct ev_loop* ev;                                                         \
+  int backend_fd;                                                             \
+  ngx_queue_t pending_queue;                                                  \
+  ngx_queue_t watcher_queue;                                                  \
+  uv__io_t** watchers;                                                        \
+  unsigned int nwatchers;                                                     \
+  unsigned int nfds;                                                          \
   ngx_queue_t wq;                                                             \
   uv_mutex_t wq_mutex;                                                        \
   uv_async_t wq_async;                                                        \
@@ -193,23 +203,19 @@ typedef struct {
 #define UV_STREAM_PRIVATE_FIELDS                                              \
   uv_connect_t *connect_req;                                                  \
   uv_shutdown_t *shutdown_req;                                                \
-  uv__io_t read_watcher;                                                      \
-  uv__io_t write_watcher;                                                     \
+  uv__io_t io_watcher;                                                        \
   ngx_queue_t write_queue;                                                    \
   ngx_queue_t write_completed_queue;                                          \
   uv_connection_cb connection_cb;                                             \
   int delayed_error;                                                          \
   int accepted_fd;                                                            \
-  int fd;                                                                     \
 
 #define UV_TCP_PRIVATE_FIELDS /* empty */
 
 #define UV_UDP_PRIVATE_FIELDS                                                 \
-  int fd;                                                                     \
   uv_alloc_cb alloc_cb;                                                       \
   uv_udp_recv_cb recv_cb;                                                     \
-  uv__io_t read_watcher;                                                      \
-  uv__io_t write_watcher;                                                     \
+  uv__io_t io_watcher;                                                        \
   ngx_queue_t write_queue;                                                    \
   ngx_queue_t write_completed_queue;                                          \
 
@@ -217,7 +223,6 @@ typedef struct {
   const char* pipe_fname; /* strdup'ed */
 
 #define UV_POLL_PRIVATE_FIELDS                                                \
-  int fd;                                                                     \
   uv__io_t io_watcher;
 
 #define UV_PREPARE_PRIVATE_FIELDS                                             \
diff --git a/deps/uv/include/uv.h b/deps/uv/include/uv.h
index 1acea6ffc0..b187d6cb35 100644
--- a/deps/uv/include/uv.h
+++ b/deps/uv/include/uv.h
@@ -1044,9 +1044,8 @@ UV_EXTERN int uv_poll_stop(uv_poll_t* handle);
 /*
  * uv_prepare_t is a subclass of uv_handle_t.
  *
- * libev wrapper. Every active prepare handle gets its callback called
- * exactly once per loop iteration, just before the system blocks to wait
- * for completed i/o.
+ * Every active prepare handle gets its callback called exactly once per loop
+ * iteration, just before the system blocks to wait for completed i/o.
  */
 struct uv_prepare_s {
   UV_HANDLE_FIELDS
@@ -1063,8 +1062,8 @@ UV_EXTERN int uv_prepare_stop(uv_prepare_t* prepare);
 /*
  * uv_check_t is a subclass of uv_handle_t.
  *
- * libev wrapper. Every active check handle gets its callback called exactly
- * once per loop iteration, just after the system returns from blocking.
+ * Every active check handle gets its callback called exactly once per loop
+ * iteration, just after the system returns from blocking.
  */
 struct uv_check_s {
   UV_HANDLE_FIELDS
@@ -1081,10 +1080,10 @@ UV_EXTERN int uv_check_stop(uv_check_t* check);
 /*
  * uv_idle_t is a subclass of uv_handle_t.
  *
- * libev wrapper. Every active idle handle gets its callback called
- * repeatedly until it is stopped. This happens after all other types of
- * callbacks are processed.  When there are multiple "idle" handles active,
- * their callbacks are called in turn.
+ * Every active idle handle gets its callback called repeatedly until it is
+ * stopped. This happens after all other types of callbacks are processed.
+ * When there are multiple "idle" handles active, their callbacks are called
+ * in turn.
  */
 struct uv_idle_s {
   UV_HANDLE_FIELDS
@@ -1101,12 +1100,11 @@ UV_EXTERN int uv_idle_stop(uv_idle_t* idle);
 /*
  * uv_async_t is a subclass of uv_handle_t.
  *
- * libev wrapper. uv_async_send wakes up the event
- * loop and calls the async handle's callback There is no guarantee that
- * every uv_async_send call leads to exactly one invocation of the callback;
- * The only guarantee is that the callback function is  called at least once
- * after the call to async_send. Unlike all other libuv functions,
- * uv_async_send can be called from another thread.
+ * uv_async_send wakes up the event loop and calls the async handle's callback.
+ * There is no guarantee that every uv_async_send call leads to exactly one
+ * invocation of the callback; the only guarantee is that the callback function
+ * is called at least once after the call to async_send. Unlike all other
+ * libuv functions, uv_async_send can be called from another thread.
  */
 struct uv_async_s {
   UV_HANDLE_FIELDS
@@ -1639,9 +1637,11 @@ struct uv_signal_s {
 };
 
 /* These functions are no-ops on Windows. */
-int uv_signal_init(uv_loop_t* loop, uv_signal_t* handle);
-int uv_signal_start(uv_signal_t* handle, uv_signal_cb signal_cb, int signum);
-int uv_signal_stop(uv_signal_t* handle);
+UV_EXTERN int uv_signal_init(uv_loop_t* loop, uv_signal_t* handle);
+UV_EXTERN int uv_signal_start(uv_signal_t* handle,
+                              uv_signal_cb signal_cb,
+                              int signum);
+UV_EXTERN int uv_signal_stop(uv_signal_t* handle);
 
 
 /*
@@ -1699,8 +1699,8 @@ UV_EXTERN int uv_ip6_name(struct sockaddr_in6* src, char* dst, size_t size);
 /* Cross-platform IPv6-capable implementation of the 'standard' inet_ntop */
 /* and inet_pton functions. On success they return UV_OK. If an error */
 /* the target of the `dst` pointer is unmodified. */
-uv_err_t uv_inet_ntop(int af, const void* src, char* dst, size_t size);
-uv_err_t uv_inet_pton(int af, const char* src, void* dst);
+UV_EXTERN uv_err_t uv_inet_ntop(int af, const void* src, char* dst, size_t size);
+UV_EXTERN uv_err_t uv_inet_pton(int af, const char* src, void* dst);
 
 /* Gets the executable path */
 UV_EXTERN int uv_exepath(char* buffer, size_t* size);
diff --git a/deps/uv/src/unix/async.c b/deps/uv/src/unix/async.c
index 4d3cd94f17..479bc8e23c 100644
--- a/deps/uv/src/unix/async.c
+++ b/deps/uv/src/unix/async.c
@@ -27,7 +27,7 @@
 #include <unistd.h>
 
 static int uv__async_init(uv_loop_t* loop);
-static void uv__async_io(uv_loop_t* loop, uv__io_t* handle, int events);
+static void uv__async_io(uv_loop_t* loop, uv__io_t* w, unsigned int events);
 
 
 static int uv__async_make_pending(volatile sig_atomic_t* ptr) {
@@ -104,17 +104,14 @@ static int uv__async_init(uv_loop_t* loop) {
   if (uv__make_pipe(loop->async_pipefd, UV__F_NONBLOCK))
     return -1;
 
-  uv__io_init(&loop->async_watcher,
-              uv__async_io,
-              loop->async_pipefd[0],
-              UV__IO_READ);
-  uv__io_start(loop, &loop->async_watcher);
+  uv__io_init(&loop->async_watcher, uv__async_io, loop->async_pipefd[0]);
+  uv__io_start(loop, &loop->async_watcher, UV__POLLIN);
 
   return 0;
 }
 
 
-static void uv__async_io(uv_loop_t* loop, uv__io_t* handle, int events) {
+static void uv__async_io(uv_loop_t* loop, uv__io_t* w, unsigned int events) {
   char buf[1024];
   ngx_queue_t* q;
   uv_async_t* h;
diff --git a/deps/uv/src/unix/core.c b/deps/uv/src/unix/core.c
index d7ccb68b0c..06d689ca2f 100644
--- a/deps/uv/src/unix/core.c
+++ b/deps/uv/src/unix/core.c
@@ -35,7 +35,7 @@
 #include <sys/un.h>
 #include <netinet/in.h>
 #include <arpa/inet.h>
-#include <limits.h> /* PATH_MAX */
+#include <limits.h> /* INT_MAX, PATH_MAX */
 #include <sys/uio.h> /* writev */
 
 #ifdef __linux__
@@ -60,6 +60,8 @@
 # include <sys/wait.h>
 #endif
 
+static void uv__run_pending(uv_loop_t* loop);
+
 static uv_loop_t default_loop_struct;
 static uv_loop_t* default_loop_ptr;
 
@@ -167,9 +169,6 @@ static void uv__finish_close(uv_handle_t* handle) {
     case UV_NAMED_PIPE:
     case UV_TCP:
     case UV_TTY:
-      assert(!uv__io_active(&((uv_stream_t*)handle)->read_watcher));
-      assert(!uv__io_active(&((uv_stream_t*)handle)->write_watcher));
-      assert(((uv_stream_t*)handle)->fd == -1);
       uv__stream_destroy((uv_stream_t*)handle);
       break;
 
@@ -263,20 +262,13 @@ static unsigned int uv__poll_timeout(uv_loop_t* loop) {
 }
 
 
-static void uv__poll(uv_loop_t* loop) {
-  void ev__run(EV_P_ ev_tstamp waittime);
-  ev_invoke_pending(loop->ev);
-  ev__run(loop->ev, uv__poll_timeout(loop) / 1000.);
-  ev_invoke_pending(loop->ev);
-}
-
-
 static int uv__run(uv_loop_t* loop) {
   uv_update_time(loop);
   uv__run_timers(loop);
   uv__run_idle(loop);
   uv__run_prepare(loop);
-  uv__poll(loop);
+  uv__run_pending(loop);
+  uv__io_poll(loop, uv__poll_timeout(loop));
   uv__run_check(loop);
   uv__run_closing_handles(loop);
   return uv__has_active_handles(loop) || uv__has_active_reqs(loop);
@@ -534,49 +526,136 @@ void uv_disable_stdio_inheritance(void) {
 }
 
 
-static void uv__io_set_cb(uv__io_t* handle, uv__io_cb cb) {
-  union { void* data; uv__io_cb cb; } u;
-  u.cb = cb;
-  handle->io_watcher.data = u.data;
+static void uv__run_pending(uv_loop_t* loop) {
+  ngx_queue_t* q;
+  uv__io_t* w;
+
+  while (!ngx_queue_empty(&loop->pending_queue)) {
+    q = ngx_queue_head(&loop->pending_queue);
+    ngx_queue_remove(q);
+    ngx_queue_init(q);
+
+    w = ngx_queue_data(q, uv__io_t, pending_queue);
+    w->cb(loop, w, UV__POLLOUT);
+  }
 }
 
 
-static void uv__io_rw(struct ev_loop* ev, ev_io* w, int events) {
-  union { void* data; uv__io_cb cb; } u;
-  uv_loop_t* loop = ev_userdata(ev);
-  uv__io_t* handle = container_of(w, uv__io_t, io_watcher);
-  u.data = handle->io_watcher.data;
-  u.cb(loop, handle, events & (EV_READ|EV_WRITE|EV_ERROR));
+static unsigned int next_power_of_two(unsigned int val) {
+  val -= 1;
+  val |= val >> 1;
+  val |= val >> 2;
+  val |= val >> 4;
+  val |= val >> 8;
+  val |= val >> 16;
+  val += 1;
+  return val;
 }
 
+static void maybe_resize(uv_loop_t* loop, unsigned int len) {
+  uv__io_t** watchers;
+  unsigned int nwatchers;
+  unsigned int i;
 
-void uv__io_init(uv__io_t* handle, uv__io_cb cb, int fd, int events) {
-  ev_io_init(&handle->io_watcher, uv__io_rw, fd, events & (EV_READ|EV_WRITE));
-  uv__io_set_cb(handle, cb);
+  if (len <= loop->nwatchers)
+    return;
+
+  nwatchers = next_power_of_two(len);
+  watchers = realloc(loop->watchers, nwatchers * sizeof(loop->watchers[0]));
+
+  if (watchers == NULL)
+    abort();
+
+  for (i = loop->nwatchers; i < nwatchers; i++)
+    watchers[i] = NULL;
+
+  loop->watchers = watchers;
+  loop->nwatchers = nwatchers;
 }
 
 
-void uv__io_set(uv__io_t* handle, uv__io_cb cb, int fd, int events) {
-  ev_io_set(&handle->io_watcher, fd, events);
-  uv__io_set_cb(handle, cb);
+void uv__io_init(uv__io_t* w, uv__io_cb cb, int fd) {
+  assert(cb != NULL);
+  assert(fd >= -1);
+  ngx_queue_init(&w->pending_queue);
+  ngx_queue_init(&w->watcher_queue);
+  w->cb = cb;
+  w->fd = fd;
+  w->events = 0;
+  w->pevents = 0;
 }
 
 
-void uv__io_start(uv_loop_t* loop, uv__io_t* handle) {
-  ev_io_start(loop->ev, &handle->io_watcher);
+/* Note that uv__io_start() and uv__io_stop() can't simply remove the watcher
+ * from the queue when the new event mask equals the old one. The event ports
+ * backend operates exclusively in single-shot mode and needs to rearm all fds
+ * before each call to port_getn(). It's up to the individual backends to
+ * filter out superfluous event mask modifications.
+ */
+
+
+void uv__io_start(uv_loop_t* loop, uv__io_t* w, unsigned int events) {
+  assert(0 == (events & ~(UV__POLLIN | UV__POLLOUT)));
+  assert(0 != events);
+  assert(w->fd >= 0);
+  assert(w->fd < INT_MAX);
+
+  w->pevents |= events;
+  maybe_resize(loop, w->fd + 1);
+
+  if (ngx_queue_empty(&w->watcher_queue))
+    ngx_queue_insert_tail(&loop->watcher_queue, &w->watcher_queue);
+
+  if (loop->watchers[w->fd] == NULL) {
+    loop->watchers[w->fd] = w;
+    loop->nfds++;
+  }
 }
 
 
-void uv__io_stop(uv_loop_t* loop, uv__io_t* handle) {
-  ev_io_stop(loop->ev, &handle->io_watcher);
+void uv__io_stop(uv_loop_t* loop, uv__io_t* w, unsigned int events) {
+  assert(0 == (events & ~(UV__POLLIN | UV__POLLOUT)));
+  assert(0 != events);
+
+  if (w->fd == -1)
+    return;
+
+  assert(w->fd >= 0);
+
+  /* Happens when uv__io_stop() is called on a handle that was never started. */
+  if ((unsigned) w->fd >= loop->nwatchers)
+    return;
+
+  w->pevents &= ~events;
+
+  if (w->pevents == 0) {
+    ngx_queue_remove(&w->pending_queue);
+    ngx_queue_init(&w->pending_queue);
+
+    ngx_queue_remove(&w->watcher_queue);
+    ngx_queue_init(&w->watcher_queue);
+
+    if (loop->watchers[w->fd] != NULL) {
+      assert(loop->watchers[w->fd] == w);
+      assert(loop->nfds > 0);
+      loop->watchers[w->fd] = NULL;
+      loop->nfds--;
+      w->events = 0;
+    }
+  }
+  else if (ngx_queue_empty(&w->watcher_queue))
+    ngx_queue_insert_tail(&loop->watcher_queue, &w->watcher_queue);
 }
 
 
-void uv__io_feed(uv_loop_t* loop, uv__io_t* handle, int event) {
-  ev_feed_event(loop->ev, &handle->io_watcher, event);
+void uv__io_feed(uv_loop_t* loop, uv__io_t* w) {
+  if (ngx_queue_empty(&w->pending_queue))
+    ngx_queue_insert_tail(&loop->pending_queue, &w->pending_queue);
 }
 
 
-int uv__io_active(uv__io_t* handle) {
-  return ev_is_active(&handle->io_watcher);
+int uv__io_active(const uv__io_t* w, unsigned int events) {
+  assert(0 == (events & ~(UV__POLLIN | UV__POLLOUT)));
+  assert(0 != events);
+  return 0 != (w->pevents & events);
 }
diff --git a/deps/uv/src/unix/darwin.c b/deps/uv/src/unix/darwin.c
index cc7c817c4d..f40efb2fcd 100644
--- a/deps/uv/src/unix/darwin.c
+++ b/deps/uv/src/unix/darwin.c
@@ -55,6 +55,9 @@ int uv__platform_loop_init(uv_loop_t* loop, int default_loop) {
   CFRunLoopSourceContext ctx;
   int r;
 
+  if (uv__kqueue_init(loop))
+    return -1;
+
   loop->cf_loop = NULL;
   if ((r = uv_mutex_init(&loop->cf_mutex)))
     return r;
@@ -174,19 +177,12 @@ void uv__cf_loop_signal(uv_loop_t* loop, cf_loop_signal_cb cb, void* arg) {
 
 
 uint64_t uv_hrtime(void) {
-    uint64_t time;
-    uint64_t enano;
-    static mach_timebase_info_data_t sTimebaseInfo;
-
-    time = mach_absolute_time();
-
-    if (0 == sTimebaseInfo.denom) {
-        (void)mach_timebase_info(&sTimebaseInfo);
-    }
+    mach_timebase_info_data_t info;
 
-    enano = time * sTimebaseInfo.numer / sTimebaseInfo.denom;
+    if (mach_timebase_info(&info) != KERN_SUCCESS)
+      abort();
 
-    return enano;
+    return mach_absolute_time() * info.numer / info.denom;
 }
 
 
diff --git a/deps/uv/src/unix/ev/Changes b/deps/uv/src/unix/ev/Changes
deleted file mode 100644
index d6fca2f67c..0000000000
--- a/deps/uv/src/unix/ev/Changes
+++ /dev/null
@@ -1,388 +0,0 @@
-Revision history for libev, a high-performance and full-featured event loop.
-
-4.04 Wed Feb 16 09:01:51 CET 2011
-	- fix two problems in the native win32 backend, where reuse of fd's
-          with different underlying handles caused handles not to be removed
-          or added to the select set (analyzed and tested by Bert Belder).
-	- do no rely on ceil() in ev_e?poll.c.
-        - backport libev to HP-UX versions before 11 v3.
-        - configure did not detect nanosleep and clock_gettime properly when
-          they are available in the libc (as opposed to -lrt).
-
-4.03 Tue Jan 11 14:37:25 CET 2011
-	- officially support polling files with all backends.
-	- support files, /dev/zero etc. the same way as select in the epoll
-          backend, by generating events on our own.
-        - ports backend: work around solaris bug 6874410 and many related ones
-          (EINTR, maybe more), with no performance loss (note that the solaris
-          bug report is actually wrong, reality is far more bizarre and broken
-          than that).
-	- define EV_READ/EV_WRITE as macros in event.h, as some programs use
-          #ifdef to test for them.
-        - new (experimental) function: ev_feed_signal.
-        - new (to become default) EVFLAG_NOSIGMASK flag.
-        - new EVBACKEND_MASK symbol.
-        - updated COMMON IDIOMS SECTION.
-
-4.01 Fri Nov  5 21:51:29 CET 2010
-        - automake fucked it up, apparently, --add-missing -f is not quite enough
-          to make it update its files, so 4.00 didn't install ev++.h and
-          event.h on make install. grrr.
-        - ev_loop(count|depth) didn't return anything (Robin Haberkorn).
-        - change EV_UNDEF to 0xffffffff to silence some overzealous compilers.
-        - use "(libev) " prefix for all libev error messages now.
-
-4.00 Mon Oct 25 12:32:12 CEST 2010
-	- "PORTING FROM LIBEV 3.X TO 4.X" (in ev.pod) is recommended reading.
-	- ev_embed_stop did not correctly stop the watcher (very good
-          testcase by Vladimir Timofeev).
-        - ev_run will now always update the current loop time - it erroneously
-          didn't when idle watchers were active, causing timers not to fire.
-        - fix a bug where a timeout of zero caused the timer not to fire
-          in the libevent emulation (testcase by Péter Szabó).
-	- applied win32 fixes by Michael Lenaghan (also James Mansion).
-	- replace EV_MINIMAL by EV_FEATURES.
-        - prefer EPOLL_CTL_ADD over EPOLL_CTL_MOD in some more cases, as it
-          seems the former is *much* faster than the latter.
-        - linux kernel version detection (for inotify bug workarounds)
-          did not work properly.
-        - reduce the number of spurious wake-ups with the ports backend.
-        - remove dependency on sys/queue.h on freebsd (patch by Vanilla Hsu).
-        - do async init within ev_async_start, not ev_async_set, which avoids
-          an API quirk where the set function must be called in the C++ API
-          even when there is nothing to set.
-        - add (undocumented) EV_ENABLE when adding events with kqueue,
-          this might help with OS X, which seems to need it despite documenting
-          not to need it (helpfully pointed out by Tilghman Lesher).
-        - do not use poll by default on freebsd, it's broken (what isn't
-          on freebsd...).
-        - allow to embed epoll on kernels >= 2.6.32.
-        - configure now prepends -O3, not appends it, so one can still
-          override it.
-        - ev.pod: greatly expanded the portability section, added a porting
-          section, a description of watcher states and made lots of minor fixes.
-        - disable poll backend on AIX, the poll header spams the namespace
-          and it's not worth working around dead platforms (reported
-          and analyzed by Aivars Kalvans).
-        - improve header file compatibility of the standalone eventfd code
-          in an obscure case.
-        - implement EV_AVOID_STDIO option.
-        - do not use sscanf to parse linux version number (smaller, faster,
-          no sscanf dependency).
-        - new EV_CHILD_ENABLE and EV_SIGNAL_ENABLE configurable settings.
-        - update libev.m4 HAVE_CLOCK_SYSCALL test for newer glibcs.
-        - add section on accept() problems to the manpage.
-        - rename EV_TIMEOUT to EV_TIMER.
-        - rename ev_loop_count/depth/verify/loop/unloop.
-        - remove ev_default_destroy and ev_default_fork.
-        - switch to two-digit minor version.
-        - work around an apparent gentoo compiler bug.
-        - define _DARWIN_UNLIMITED_SELECT. just so.
-        - use enum instead of #define for most constants.
-        - improve compatibility to older C++ compilers.
-        - (experimental) ev_run/ev_default_loop/ev_break/ev_loop_new have now
-          default arguments when compiled as C++.
-        - enable automake dependency tracking.
-        - ev_loop_new no longer leaks memory when loop creation failed.
-        - new ev_cleanup watcher type.
-
-3.9  Thu Dec 31 07:59:59 CET 2009
-	- signalfd is no longer used by default and has to be requested
-          explicitly - this means that easy to catch bugs become hard to
-          catch race conditions, but the users have spoken.
-        - point out the unspecified signal mask in the documentation, and
-          that this is a race condition regardless of EV_SIGNALFD.
-	- backport inotify code to C89.
-        - inotify file descriptors could leak into child processes.
-        - ev_stat watchers could keep an errornous extra ref on the loop,
-          preventing exit when unregistering all watchers (testcases
-          provided by ry@tinyclouds.org).
-        - implement EV_WIN32_HANDLE_TO_FD and EV_WIN32_CLOSE_FD configuration
-          symbols to make it easier for apps to do their own fd management.
-        - support EV_IDLE_ENABLE being disabled in ev++.h
-          (patch by Didier Spezia).
-        - take advantage of inotify_init1, if available, to set cloexec/nonblock
-          on fd creation, to avoid races.
-        - the signal handling pipe wasn't always initialised under windows
-          (analysed by lekma).
-        - changed minimum glibc requirement from glibc 2.9 to 2.7, for
-          signalfd.
-        - add missing string.h include (Denis F. Latypoff).
-        - only replace ev_stat.prev when we detect an actual difference,
-          so prev is (almost) always different to attr. this might
-          have caused the problems with 04_stat.t.
-        - add ev::timer->remaining () method to C++ API.
-
-3.8  Sun Aug  9 14:30:45 CEST 2009
-	- incompatible change: do not necessarily reset signal handler
-          to SIG_DFL when a sighandler is stopped.
-        - ev_default_destroy did not properly free or zero some members,
-          potentially causing crashes and memory corruption on repeated
-          ev_default_destroy/ev_default_loop calls.
-	- take advantage of signalfd on GNU/Linux systems.
-	- document that the signal mask might be in an unspecified
-          state when using libev's signal handling.
-        - take advantage of some GNU/Linux calls to set cloexec/nonblock
-          on fd creation, to avoid race conditions.
-
-3.7  Fri Jul 17 16:36:32 CEST 2009
-	- ev_unloop and ev_loop wrongly used a global variable to exit loops,
-          instead of using a per-loop variable (bug caught by accident...).
-	- the ev_set_io_collect_interval interpretation has changed.
-        - add new functionality: ev_set_userdata, ev_userdata,
-          ev_set_invoke_pending_cb, ev_set_loop_release_cb,
-          ev_invoke_pending, ev_pending_count, together with a long example
-          about thread locking.
-        - add ev_timer_remaining (as requested by Denis F. Latypoff).
-        - add ev_loop_depth.
-        - calling ev_unloop in fork/prepare watchers will no longer poll
-          for new events.
-	- Denis F. Latypoff corrected many typos in example code snippets.
-        - honor autoconf detection of EV_USE_CLOCK_SYSCALL, also double-
-          check that the syscall number is available before trying to
-          use it (reported by ry@tinyclouds).
-        - use GetSystemTimeAsFileTime instead of _timeb on windows, for
-          slightly higher accuracy.
-        - properly declare ev_loop_verify and ev_now_update even when
-          !EV_MULTIPLICITY.
-        - do not compile in any priority code when EV_MAXPRI == EV_MINPRI.
-        - support EV_MINIMAL==2 for a reduced API.
-        - actually 0-initialise struct sigaction when installing signals.
-        - add section on hibernate and stopped processes to ev_timer docs.
-
-3.6  Tue Apr 28 02:49:30 CEST 2009
-	- multiple timers becoming ready within an event loop iteration
-          will be invoked in the "correct" order now.
-	- do not leave the event loop early just because we have no active
-          watchers, fixing a problem when embedding a kqueue loop
-          that has active kernel events but no registered watchers
-          (reported by blacksand blacksand).
-	- correctly zero the idx values for arrays, so destroying and
-          reinitialising the default loop actually works (patch by
-          Malek Hadj-Ali).
-        - implement ev_suspend and ev_resume.
-        - new EV_CUSTOM revents flag for use by applications.
-        - add documentation section about priorites.
-        - add a glossary to the dcoumentation.
-        - extend the ev_fork description slightly.
-        - optimize a jump out of call_pending.
-
-3.53 Sun Feb 15 02:38:20 CET 2009
-	- fix a bug in event pipe creation on win32 that would cause a
-          failed assertion on event loop creation (patch by Malek Hadj-Ali).
-	- probe for CLOCK_REALTIME support at runtime as well and fall
-          back to gettimeofday if there is an error, to support older
-          operating systems with newer header files/libraries.
-        - prefer gettimeofday over clock_gettime with USE_CLOCK_SYSCALL
-          (default most everywhere), otherwise not.
-
-3.52 Wed Jan  7 21:43:02 CET 2009
-	- fix compilation of select backend in fd_set mode when NFDBITS is
-          missing (to get it to compile on QNX, reported by Rodrigo Campos).
-        - better select-nfds handling when select backend is in fd_set mode.
-        - diagnose fd_set overruns when select backend is in fd_set mode.
-        - due to a thinko, instead of disabling everything but
-          select on the borked OS X platform, everything but select was
-          allowed (reported by Emanuele Giaquinta).
-        - actually verify that local and remote port are matching in
-          libev's socketpair emulation, which makes denial-of-service
-          attacks harder (but not impossible - it's windows). Make sure
-          it even works under vista, which thinks that getpeer/sockname
-          should return fantasy port numbers.
-        - include "libev" in all assertion messages for potentially
-          clearer diagnostics.
-        - event_get_version (libevent compatibility) returned
-          a useless string instead of the expected version string
-          (patch by W.C.A. Wijngaards).
-
-3.51 Wed Dec 24 23:00:11 CET 2008
-        - fix a bug where an inotify watcher was added twice, causing
-          freezes on hash collisions (reported and analysed by Graham Leggett).
-	- new config symbol, EV_USE_CLOCK_SYSCALL, to make libev use
-          a direct syscall - slower, but no dependency on librt et al.
-        - assume negative return values != -1 signals success of port_getn
-          (http://cvs.epicsol.org/cgi/viewcvs.cgi/epic5/source/newio.c?rev=1.52)
-          (no known failure reports, but it doesn't hurt).
-        - fork detection in ev_embed now stops and restarts the watcher
-          automatically.
-        - EXPERIMENTAL: default the method to operator () in ev++.h,
-          to make it nicer to use functors (requested by Benedek László).
-        - fixed const object callbacks in ev++.h.
-        - replaced loop_ref argument of watcher.set (loop) by a direct
-          ev_loop * in ev++.h, to avoid clashes with functor patch.
-        - do not try to watch the empty string via inotify.
-        - inotify watchers could be leaked under certain circumstances.
-        - OS X 10.5 is actually even more broken than earlier versions,
-          so fall back to select on that piece of garbage.
-        - fixed some weirdness in the ev_embed documentation.
-
-3.49 Wed Nov 19 11:26:53 CET 2008
-	- ev_stat watchers will now use inotify as a mere hint on
-          kernels <2.6.25, or if the filesystem is not in the
-          "known to be good" list.
-        - better mingw32 compatibility (it's not as borked as native win32)
-          (analysed by Roger Pack).
-        - include stdio.h in the example program, as too many people are
-          confused by the weird C language otherwise. I guess the next thing
-          I get told is that the "..." ellipses in the examples don't compile
-          with their C compiler.
-
-3.48 Thu Oct 30 09:02:37 CET 2008
-	- further optimise away the EPOLL_CTL_ADD/MOD combo in the epoll
-          backend by assuming the kernel event mask hasn't changed if
-          ADD fails with EEXIST.
-        - work around spurious event notification bugs in epoll by using
-          a 32-bit generation counter. recreate kernel state if we receive
-          spurious notifications or unwanted events. this is very costly,
-          but I didn't come up with this horrible design.
-        - use memset to initialise most arrays now and do away with the
-          init functions.
-        - expand time-out strategies into a "Be smart about timeouts" section.
-        - drop the "struct" from all ev_watcher declarations in the
-          documentation and did other clarifications (yeah, it was a mistake
-          to have a struct AND a function called ev_loop).
-	- fix a bug where ev_default would not initialise the default
-          loop again after it was destroyed with ev_default_destroy.
-        - rename syserr to ev_syserr to avoid name clashes when embedding,
-          do similar changes for event.c.
-
-3.45 Tue Oct 21 21:59:26 CEST 2008
-	- disable inotify usage on linux <2.6.25, as it is broken
-          (reported by Yoann Vandoorselaere).
-        - ev_stat erroneously would try to add inotify watchers
-          even when inotify wasn't available (this should only
-          have a performance impact).
-	- ev_once now passes both timeout and io to the callback if both
-          occur concurrently, instead of giving timeouts precedence.
-	- disable EV_USE_INOTIFY when sys/inotify.h is too old.
-
-3.44 Mon Sep 29 05:18:39 CEST 2008
-	- embed watchers now automatically invoke ev_loop_fork on the
-          embedded loop when the parent loop forks.
-	- new function: ev_now_update (loop).
-	- verify_watcher was not marked static.
-        - improve the "associating..." manpage section.
-        - documentation tweaks here and there.
-
-3.43 Sun Jul  6 05:34:41 CEST 2008
-	- include more include files on windows to get struct _stati64
-          (reported by Chris Hulbert, but doesn't quite fix his issue).
-	- add missing #include <io.h> in ev.c on windows (reported by
-          Matt Tolton).
-
-3.42 Tue Jun 17 12:12:07 CEST 2008
-	- work around yet another windows bug: FD_SET actually adds fd's
-          multiple times to the fd_*SET*, despite official MSN docs claiming
-          otherwise. Reported and well-analysed by Matt Tolton.
-	- define NFDBITS to 0 when EV_SELECT_IS_WINSOCKET to make it compile
-          (reported any analysed by Chris Hulbert).
-        - fix a bug in ev_ebadf (this function is only used to catch
-          programming errors in the libev user). reported by Matt Tolton.
-        - fix a bug in fd_intern on win32 (could lead to compile errors
-          under some circumstances, but would work correctly if it compiles).
-          reported by Matt Tolton.
-        - (try to) work around missing lstat on windows.
-	- pass in the write fd set as except fd set under windows. windows
-          is so uncontrollably lame that it requires this. this means that
-          switching off oobinline is not supported (but tcp/ip doesn't
-          have oob, so that would be stupid anyways.
-        - use posix module symbol to auto-detect monotonic clock presence
-          and some other default values.
-
-3.41 Fri May 23 18:42:54 CEST 2008
-	- work around an obscure bug in winsocket select: if you
-          provide only empty fd sets then select returns WSAEINVAL. how sucky.
-        - improve timer scheduling stability and reduce use of time_epsilon.
-        - use 1-based 2-heap for EV_MINIMAL, simplifies code, reduces
-          codesize and makes for better cache-efficiency.
-        - use 3-based 4-heap for !EV_MINIMAL. this makes better use
-          of cpu cache lines and gives better growth behaviour than
-          2-based heaps.
-        - cache timestamp within heap for !EV_MINIMAL, to avoid random
-          memory accesses.
-        - document/add EV_USE_4HEAP and EV_HEAP_CACHE_AT.
-        - fix a potential aliasing issue in ev_timer_again.
-        - add/document ev_periodic_at, retract direct access to ->at.
-        - improve ev_stat docs.
-        - add portability requirements section.
-	- fix manpage headers etc.
-        - normalise WSA error codes to lower range on windows.
-        - add consistency check code that can be called automatically
-          or on demand to check for internal structures (ev_loop_verify).
-
-3.31 Wed Apr 16 20:45:04 CEST 2008
-	- added last minute fix for ev_poll.c by Brandon Black.
-
-3.3  Wed Apr 16 19:04:10 CEST 2008
-        - event_base_loopexit should return 0 on success
-          (W.C.A. Wijngaards).
-	- added linux eventfd support.
-        - try to autodetect epoll and inotify support
-          by libc header version if not using autoconf.
-        - new symbols: EV_DEFAULT_UC and EV_DEFAULT_UC_.
-        - declare functions defined in ev.h as inline if
-          C99 or gcc are available.
-        - enable inlining with gcc versions 2 and 3.
-        - work around broken poll implementations potentially
-          not clearing revents field in ev_poll (Brandon Black)
-          (no such systems are known at this time).
-        - work around a bug in realloc on openbsd and darwin,
-          also makes the erroneous valgrind complaints
-          go away (noted by various people).
-        - fix ev_async_pending, add c++ wrapper for ev_async
-          (based on patch sent by Johannes Deisenhofer).
-        - add sensible set method to ev::embed.
-        - made integer constants type int in ev.h.
-
-3.2  Wed Apr  2 17:11:19 CEST 2008
-	- fix a 64 bit overflow issue in the select backend,
-          by using fd_mask instead of int for the mask.
-        - rename internal sighandler to avoid clash with very old perls.
-        - entering ev_loop will not clear the ONESHOT or NONBLOCKING
-          flags of any outer loops anymore.
-        - add ev_async_pending.
-
-3.1  Thu Mar 13 13:45:22 CET 2008
-	- implement ev_async watchers.
-        - only initialise signal pipe on demand.
-	- make use of sig_atomic_t configurable.
-        - improved documentation.
-
-3.0  Mon Jan 28 13:14:47 CET 2008
-	- API/ABI bump to version 3.0.
-	- ev++.h includes "ev.h" by default now, not <ev.h>.
-	- slightly improved documentation.
-	- speed up signal detection after a fork.
-        - only optionally return trace status changed in ev_child
-          watchers.
-        - experimental (and undocumented) loop wrappers for ev++.h.
-
-2.01 Tue Dec 25 08:04:41 CET 2007
-	- separate Changes file.
-	- fix ev_path_set => ev_stat_set typo.
-        - remove event_compat.h from the libev tarball.
-        - change how include files are found.
-        - doc updates.
-        - update licenses, explicitly allow for GPL relicensing.
-
-2.0  Sat Dec 22 17:47:03 CET 2007
-        - new ev_sleep, ev_set_(io|timeout)_collect_interval.
-        - removed epoll from embeddable fd set.
-        - fix embed watchers.
-	- renamed ev_embed.loop to other.
-	- added exported Symbol tables.
-        - undefine member wrapper macros at the end of ev.c.
-        - respect EV_H in ev++.h.
-
-1.86 Tue Dec 18 02:36:57 CET 2007
-	- fix memleak on loop destroy (not relevant for perl).
-
-1.85 Fri Dec 14 20:32:40 CET 2007
-        - fix some aliasing issues w.r.t. timers and periodics
-          (not relevant for perl).
-
-(for historic versions refer to EV/Changes, found in the Perl interface)
-
-0.1  Wed Oct 31 21:31:48 CET 2007
-	- original version; hacked together in <24h.
-
diff --git a/deps/uv/src/unix/ev/LICENSE b/deps/uv/src/unix/ev/LICENSE
deleted file mode 100644
index 7fa0e9f844..0000000000
--- a/deps/uv/src/unix/ev/LICENSE
+++ /dev/null
@@ -1,36 +0,0 @@
-All files in libev are Copyright (C)2007,2008,2009 Marc Alexander Lehmann.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are
-met:
-
-    * Redistributions of source code must retain the above copyright
-      notice, this list of conditions and the following disclaimer.
-
-    * Redistributions in binary form must reproduce the above
-      copyright notice, this list of conditions and the following
-      disclaimer in the documentation and/or other materials provided
-      with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-Alternatively, the contents of this package may be used under the terms
-of the GNU General Public License ("GPL") version 2 or any later version,
-in which case the provisions of the GPL are applicable instead of the
-above. If you wish to allow the use of your version of this package only
-under the terms of the GPL and not to allow others to use your version of
-this file under the BSD license, indicate your decision by deleting the
-provisions above and replace them with the notice and other provisions
-required by the GPL in this and the other files of this package. If you do
-not delete the provisions above, a recipient may use your version of this
-file under either the BSD or the GPL.
diff --git a/deps/uv/src/unix/ev/Makefile.am b/deps/uv/src/unix/ev/Makefile.am
deleted file mode 100644
index 058c2cb0c1..0000000000
--- a/deps/uv/src/unix/ev/Makefile.am
+++ /dev/null
@@ -1,18 +0,0 @@
-AUTOMAKE_OPTIONS = foreign
-
-VERSION_INFO = 4:0:0
-
-EXTRA_DIST = LICENSE Changes libev.m4 autogen.sh \
-	     ev_vars.h ev_wrap.h \
-	     ev_epoll.c ev_select.c ev_poll.c ev_kqueue.c ev_port.c ev_win32.c \
-	     ev.3 ev.pod
-
-man_MANS = ev.3
-
-include_HEADERS = ev.h ev++.h event.h
-
-lib_LTLIBRARIES = libev.la
-
-libev_la_SOURCES = ev.c event.c
-libev_la_LDFLAGS = -version-info $(VERSION_INFO)
-
diff --git a/deps/uv/src/unix/ev/Makefile.in b/deps/uv/src/unix/ev/Makefile.in
deleted file mode 100644
index 9817a7ebd7..0000000000
--- a/deps/uv/src/unix/ev/Makefile.in
+++ /dev/null
@@ -1,771 +0,0 @@
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-# This Makefile.in is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# This program is distributed in the hope that it will be useful,
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-am__aclocal_m4_deps = $(top_srcdir)/libev.m4 \
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-am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
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-am__CONFIG_DISTCLEAN_FILES = config.status config.cache config.log \
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diff --git a/deps/uv/src/unix/ev/README b/deps/uv/src/unix/ev/README
deleted file mode 100644
index ca403c6f47..0000000000
--- a/deps/uv/src/unix/ev/README
+++ /dev/null
@@ -1,58 +0,0 @@
-libev is a high-performance event loop/event model with lots of features.
-(see benchmark at http://libev.schmorp.de/bench.html)
-
-
-ABOUT
-
-   Homepage: http://software.schmorp.de/pkg/libev
-   Mailinglist: libev@lists.schmorp.de
-                http://lists.schmorp.de/cgi-bin/mailman/listinfo/libev
-   Library Documentation: http://pod.tst.eu/http://cvs.schmorp.de/libev/ev.pod
-
-   Libev is modelled (very losely) after libevent and the Event perl
-   module, but is faster, scales better and is more correct, and also more
-   featureful. And also smaller. Yay.
-
-   Some of the specialties of libev not commonly found elsewhere are:
-   
-   - extensive and detailed, readable documentation (not doxygen garbage).
-   - fully supports fork, can detect fork in various ways and automatically
-     re-arms kernel mechanisms that do not support fork.
-   - highly optimised select, poll, epoll, kqueue and event ports backends.
-   - filesystem object (path) watching (with optional linux inotify support).
-   - wallclock-based times (using absolute time, cron-like).
-   - relative timers/timeouts (handle time jumps).
-   - fast intra-thread communication between multiple
-     event loops (with optional fast linux eventfd backend).
-   - extremely easy to embed.
-   - very small codebase, no bloated library.
-   - fully extensible by being able to plug into the event loop,
-     integrate other event loops, integrate other event loop users.
-   - very little memory use (small watchers, small event loop data).
-   - optional C++ interface allowing method and function callbacks
-     at no extra memory or runtime overhead.
-   - optional Perl interface with similar characteristics (capable
-     of running Glib/Gtk2 on libev, interfaces with Net::SNMP and
-     libadns).
-   - support for other languages (multiple C++ interfaces, D, Ruby,
-     Python) available from third-parties.
-
-   Examples of programs that embed libev: the EV perl module,
-   rxvt-unicode, gvpe (GNU Virtual Private Ethernet), the Deliantra MMORPG
-   server (http://www.deliantra.net/), Rubinius (a next-generation Ruby
-   VM), the Ebb web server, the Rev event toolkit.
-
-
-CONTRIBUTORS
-
-   libev was written and designed by Marc Lehmann and Emanuele Giaquinta.
-
-   The following people sent in patches or made other noteworthy
-   contributions to the design (for minor patches, see the Changes
-   file. If I forgot to include you, please shout at me, it was an
-   accident):
-
-   W.C.A. Wijngaards
-   Christopher Layne
-   Chris Brody
-
diff --git a/deps/uv/src/unix/ev/aclocal.m4 b/deps/uv/src/unix/ev/aclocal.m4
deleted file mode 100644
index 18abb73686..0000000000
--- a/deps/uv/src/unix/ev/aclocal.m4
+++ /dev/null
@@ -1,8957 +0,0 @@
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-
-# _LT_LIBTOOL_CONFIG_VARS
-# -----------------------
-# Produce commented declarations of non-tagged libtool config variables
-# suitable for insertion in the LIBTOOL CONFIG section of the `libtool'
-# script.  Tagged libtool config variables (even for the LIBTOOL CONFIG
-# section) are produced by _LT_LIBTOOL_TAG_VARS.
-m4_defun([_LT_LIBTOOL_CONFIG_VARS],
-[m4_foreach([_lt_var],
-    m4_quote(_lt_decl_filter([tagged?], [no], [], lt_decl_varnames)),
-    [m4_n([_LT_LIBTOOL_DECLARE(_lt_var)])])])
-
-
-# _LT_LIBTOOL_TAG_VARS(TAG)
-# -------------------------
-m4_define([_LT_LIBTOOL_TAG_VARS],
-[m4_foreach([_lt_var], m4_quote(lt_decl_tag_varnames),
-    [m4_n([_LT_LIBTOOL_DECLARE(_lt_var, [$1])])])])
-
-
-# _LT_TAGVAR(VARNAME, [TAGNAME])
-# ------------------------------
-m4_define([_LT_TAGVAR], [m4_ifval([$2], [$1_$2], [$1])])
-
-
-# _LT_CONFIG_COMMANDS
-# -------------------
-# Send accumulated output to $CONFIG_STATUS.  Thanks to the lists of
-# variables for single and double quote escaping we saved from calls
-# to _LT_DECL, we can put quote escaped variables declarations
-# into `config.status', and then the shell code to quote escape them in
-# for loops in `config.status'.  Finally, any additional code accumulated
-# from calls to _LT_CONFIG_LIBTOOL_INIT is expanded.
-m4_defun([_LT_CONFIG_COMMANDS],
-[AC_PROVIDE_IFELSE([LT_OUTPUT],
-	dnl If the libtool generation code has been placed in $CONFIG_LT,
-	dnl instead of duplicating it all over again into config.status,
-	dnl then we will have config.status run $CONFIG_LT later, so it
-	dnl needs to know what name is stored there:
-        [AC_CONFIG_COMMANDS([libtool],
-            [$SHELL $CONFIG_LT || AS_EXIT(1)], [CONFIG_LT='$CONFIG_LT'])],
-    dnl If the libtool generation code is destined for config.status,
-    dnl expand the accumulated commands and init code now:
-    [AC_CONFIG_COMMANDS([libtool],
-        [_LT_OUTPUT_LIBTOOL_COMMANDS], [_LT_OUTPUT_LIBTOOL_COMMANDS_INIT])])
-])#_LT_CONFIG_COMMANDS
-
-
-# Initialize.
-m4_define([_LT_OUTPUT_LIBTOOL_COMMANDS_INIT],
-[
-
-# The HP-UX ksh and POSIX shell print the target directory to stdout
-# if CDPATH is set.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
-
-sed_quote_subst='$sed_quote_subst'
-double_quote_subst='$double_quote_subst'
-delay_variable_subst='$delay_variable_subst'
-_LT_CONFIG_STATUS_DECLARATIONS
-LTCC='$LTCC'
-LTCFLAGS='$LTCFLAGS'
-compiler='$compiler_DEFAULT'
-
-# Quote evaled strings.
-for var in lt_decl_all_varnames([[ \
-]], lt_decl_quote_varnames); do
-    case \`eval \\\\\$ECHO "X\\\\\$\$var"\` in
-    *[[\\\\\\\`\\"\\\$]]*)
-      eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"X\\\$\$var\\" | \\\$Xsed -e \\"\\\$sed_quote_subst\\"\\\`\\\\\\""
-      ;;
-    *)
-      eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
-      ;;
-    esac
-done
-
-# Double-quote double-evaled strings.
-for var in lt_decl_all_varnames([[ \
-]], lt_decl_dquote_varnames); do
-    case \`eval \\\\\$ECHO "X\\\\\$\$var"\` in
-    *[[\\\\\\\`\\"\\\$]]*)
-      eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"X\\\$\$var\\" | \\\$Xsed -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\""
-      ;;
-    *)
-      eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
-      ;;
-    esac
-done
-
-# Fix-up fallback echo if it was mangled by the above quoting rules.
-case \$lt_ECHO in
-*'\\\[$]0 --fallback-echo"')dnl "
-  lt_ECHO=\`\$ECHO "X\$lt_ECHO" | \$Xsed -e 's/\\\\\\\\\\\\\\\[$]0 --fallback-echo"\[$]/\[$]0 --fallback-echo"/'\`
-  ;;
-esac
-
-_LT_OUTPUT_LIBTOOL_INIT
-])
-
-
-# LT_OUTPUT
-# ---------
-# This macro allows early generation of the libtool script (before
-# AC_OUTPUT is called), incase it is used in configure for compilation
-# tests.
-AC_DEFUN([LT_OUTPUT],
-[: ${CONFIG_LT=./config.lt}
-AC_MSG_NOTICE([creating $CONFIG_LT])
-cat >"$CONFIG_LT" <<_LTEOF
-#! $SHELL
-# Generated by $as_me.
-# Run this file to recreate a libtool stub with the current configuration.
-
-lt_cl_silent=false
-SHELL=\${CONFIG_SHELL-$SHELL}
-_LTEOF
-
-cat >>"$CONFIG_LT" <<\_LTEOF
-AS_SHELL_SANITIZE
-_AS_PREPARE
-
-exec AS_MESSAGE_FD>&1
-exec AS_MESSAGE_LOG_FD>>config.log
-{
-  echo
-  AS_BOX([Running $as_me.])
-} >&AS_MESSAGE_LOG_FD
-
-lt_cl_help="\
-\`$as_me' creates a local libtool stub from the current configuration,
-for use in further configure time tests before the real libtool is
-generated.
-
-Usage: $[0] [[OPTIONS]]
-
-  -h, --help      print this help, then exit
-  -V, --version   print version number, then exit
-  -q, --quiet     do not print progress messages
-  -d, --debug     don't remove temporary files
-
-Report bugs to <bug-libtool@gnu.org>."
-
-lt_cl_version="\
-m4_ifset([AC_PACKAGE_NAME], [AC_PACKAGE_NAME ])config.lt[]dnl
-m4_ifset([AC_PACKAGE_VERSION], [ AC_PACKAGE_VERSION])
-configured by $[0], generated by m4_PACKAGE_STRING.
-
-Copyright (C) 2008 Free Software Foundation, Inc.
-This config.lt script is free software; the Free Software Foundation
-gives unlimited permision to copy, distribute and modify it."
-
-while test $[#] != 0
-do
-  case $[1] in
-    --version | --v* | -V )
-      echo "$lt_cl_version"; exit 0 ;;
-    --help | --h* | -h )
-      echo "$lt_cl_help"; exit 0 ;;
-    --debug | --d* | -d )
-      debug=: ;;
-    --quiet | --q* | --silent | --s* | -q )
-      lt_cl_silent=: ;;
-
-    -*) AC_MSG_ERROR([unrecognized option: $[1]
-Try \`$[0] --help' for more information.]) ;;
-
-    *) AC_MSG_ERROR([unrecognized argument: $[1]
-Try \`$[0] --help' for more information.]) ;;
-  esac
-  shift
-done
-
-if $lt_cl_silent; then
-  exec AS_MESSAGE_FD>/dev/null
-fi
-_LTEOF
-
-cat >>"$CONFIG_LT" <<_LTEOF
-_LT_OUTPUT_LIBTOOL_COMMANDS_INIT
-_LTEOF
-
-cat >>"$CONFIG_LT" <<\_LTEOF
-AC_MSG_NOTICE([creating $ofile])
-_LT_OUTPUT_LIBTOOL_COMMANDS
-AS_EXIT(0)
-_LTEOF
-chmod +x "$CONFIG_LT"
-
-# configure is writing to config.log, but config.lt does its own redirection,
-# appending to config.log, which fails on DOS, as config.log is still kept
-# open by configure.  Here we exec the FD to /dev/null, effectively closing
-# config.log, so it can be properly (re)opened and appended to by config.lt.
-if test "$no_create" != yes; then
-  lt_cl_success=:
-  test "$silent" = yes &&
-    lt_config_lt_args="$lt_config_lt_args --quiet"
-  exec AS_MESSAGE_LOG_FD>/dev/null
-  $SHELL "$CONFIG_LT" $lt_config_lt_args || lt_cl_success=false
-  exec AS_MESSAGE_LOG_FD>>config.log
-  $lt_cl_success || AS_EXIT(1)
-fi
-])# LT_OUTPUT
-
-
-# _LT_CONFIG(TAG)
-# ---------------
-# If TAG is the built-in tag, create an initial libtool script with a
-# default configuration from the untagged config vars.  Otherwise add code
-# to config.status for appending the configuration named by TAG from the
-# matching tagged config vars.
-m4_defun([_LT_CONFIG],
-[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-_LT_CONFIG_SAVE_COMMANDS([
-  m4_define([_LT_TAG], m4_if([$1], [], [C], [$1]))dnl
-  m4_if(_LT_TAG, [C], [
-    # See if we are running on zsh, and set the options which allow our
-    # commands through without removal of \ escapes.
-    if test -n "${ZSH_VERSION+set}" ; then
-      setopt NO_GLOB_SUBST
-    fi
-
-    cfgfile="${ofile}T"
-    trap "$RM \"$cfgfile\"; exit 1" 1 2 15
-    $RM "$cfgfile"
-
-    cat <<_LT_EOF >> "$cfgfile"
-#! $SHELL
-
-# `$ECHO "$ofile" | sed 's%^.*/%%'` - Provide generalized library-building support services.
-# Generated automatically by $as_me ($PACKAGE$TIMESTAMP) $VERSION
-# Libtool was configured on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
-# NOTE: Changes made to this file will be lost: look at ltmain.sh.
-#
-_LT_COPYING
-_LT_LIBTOOL_TAGS
-
-# ### BEGIN LIBTOOL CONFIG
-_LT_LIBTOOL_CONFIG_VARS
-_LT_LIBTOOL_TAG_VARS
-# ### END LIBTOOL CONFIG
-
-_LT_EOF
-
-  case $host_os in
-  aix3*)
-    cat <<\_LT_EOF >> "$cfgfile"
-# AIX sometimes has problems with the GCC collect2 program.  For some
-# reason, if we set the COLLECT_NAMES environment variable, the problems
-# vanish in a puff of smoke.
-if test "X${COLLECT_NAMES+set}" != Xset; then
-  COLLECT_NAMES=
-  export COLLECT_NAMES
-fi
-_LT_EOF
-    ;;
-  esac
-
-  _LT_PROG_LTMAIN
-
-  # We use sed instead of cat because bash on DJGPP gets confused if
-  # if finds mixed CR/LF and LF-only lines.  Since sed operates in
-  # text mode, it properly converts lines to CR/LF.  This bash problem
-  # is reportedly fixed, but why not run on old versions too?
-  sed '/^# Generated shell functions inserted here/q' "$ltmain" >> "$cfgfile" \
-    || (rm -f "$cfgfile"; exit 1)
-
-  _LT_PROG_XSI_SHELLFNS
-
-  sed -n '/^# Generated shell functions inserted here/,$p' "$ltmain" >> "$cfgfile" \
-    || (rm -f "$cfgfile"; exit 1)
-
-  mv -f "$cfgfile" "$ofile" ||
-    (rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile")
-  chmod +x "$ofile"
-],
-[cat <<_LT_EOF >> "$ofile"
-
-dnl Unfortunately we have to use $1 here, since _LT_TAG is not expanded
-dnl in a comment (ie after a #).
-# ### BEGIN LIBTOOL TAG CONFIG: $1
-_LT_LIBTOOL_TAG_VARS(_LT_TAG)
-# ### END LIBTOOL TAG CONFIG: $1
-_LT_EOF
-])dnl /m4_if
-],
-[m4_if([$1], [], [
-    PACKAGE='$PACKAGE'
-    VERSION='$VERSION'
-    TIMESTAMP='$TIMESTAMP'
-    RM='$RM'
-    ofile='$ofile'], [])
-])dnl /_LT_CONFIG_SAVE_COMMANDS
-])# _LT_CONFIG
-
-
-# LT_SUPPORTED_TAG(TAG)
-# ---------------------
-# Trace this macro to discover what tags are supported by the libtool
-# --tag option, using:
-#    autoconf --trace 'LT_SUPPORTED_TAG:$1'
-AC_DEFUN([LT_SUPPORTED_TAG], [])
-
-
-# C support is built-in for now
-m4_define([_LT_LANG_C_enabled], [])
-m4_define([_LT_TAGS], [])
-
-
-# LT_LANG(LANG)
-# -------------
-# Enable libtool support for the given language if not already enabled.
-AC_DEFUN([LT_LANG],
-[AC_BEFORE([$0], [LT_OUTPUT])dnl
-m4_case([$1],
-  [C],			[_LT_LANG(C)],
-  [C++],		[_LT_LANG(CXX)],
-  [Java],		[_LT_LANG(GCJ)],
-  [Fortran 77],		[_LT_LANG(F77)],
-  [Fortran],		[_LT_LANG(FC)],
-  [Windows Resource],	[_LT_LANG(RC)],
-  [m4_ifdef([_LT_LANG_]$1[_CONFIG],
-    [_LT_LANG($1)],
-    [m4_fatal([$0: unsupported language: "$1"])])])dnl
-])# LT_LANG
-
-
-# _LT_LANG(LANGNAME)
-# ------------------
-m4_defun([_LT_LANG],
-[m4_ifdef([_LT_LANG_]$1[_enabled], [],
-  [LT_SUPPORTED_TAG([$1])dnl
-  m4_append([_LT_TAGS], [$1 ])dnl
-  m4_define([_LT_LANG_]$1[_enabled], [])dnl
-  _LT_LANG_$1_CONFIG($1)])dnl
-])# _LT_LANG
-
-
-# _LT_LANG_DEFAULT_CONFIG
-# -----------------------
-m4_defun([_LT_LANG_DEFAULT_CONFIG],
-[AC_PROVIDE_IFELSE([AC_PROG_CXX],
-  [LT_LANG(CXX)],
-  [m4_define([AC_PROG_CXX], defn([AC_PROG_CXX])[LT_LANG(CXX)])])
-
-AC_PROVIDE_IFELSE([AC_PROG_F77],
-  [LT_LANG(F77)],
-  [m4_define([AC_PROG_F77], defn([AC_PROG_F77])[LT_LANG(F77)])])
-
-AC_PROVIDE_IFELSE([AC_PROG_FC],
-  [LT_LANG(FC)],
-  [m4_define([AC_PROG_FC], defn([AC_PROG_FC])[LT_LANG(FC)])])
-
-dnl The call to [A][M_PROG_GCJ] is quoted like that to stop aclocal
-dnl pulling things in needlessly.
-AC_PROVIDE_IFELSE([AC_PROG_GCJ],
-  [LT_LANG(GCJ)],
-  [AC_PROVIDE_IFELSE([A][M_PROG_GCJ],
-    [LT_LANG(GCJ)],
-    [AC_PROVIDE_IFELSE([LT_PROG_GCJ],
-      [LT_LANG(GCJ)],
-      [m4_ifdef([AC_PROG_GCJ],
-	[m4_define([AC_PROG_GCJ], defn([AC_PROG_GCJ])[LT_LANG(GCJ)])])
-       m4_ifdef([A][M_PROG_GCJ],
-	[m4_define([A][M_PROG_GCJ], defn([A][M_PROG_GCJ])[LT_LANG(GCJ)])])
-       m4_ifdef([LT_PROG_GCJ],
-	[m4_define([LT_PROG_GCJ], defn([LT_PROG_GCJ])[LT_LANG(GCJ)])])])])])
-
-AC_PROVIDE_IFELSE([LT_PROG_RC],
-  [LT_LANG(RC)],
-  [m4_define([LT_PROG_RC], defn([LT_PROG_RC])[LT_LANG(RC)])])
-])# _LT_LANG_DEFAULT_CONFIG
-
-# Obsolete macros:
-AU_DEFUN([AC_LIBTOOL_CXX], [LT_LANG(C++)])
-AU_DEFUN([AC_LIBTOOL_F77], [LT_LANG(Fortran 77)])
-AU_DEFUN([AC_LIBTOOL_FC], [LT_LANG(Fortran)])
-AU_DEFUN([AC_LIBTOOL_GCJ], [LT_LANG(Java)])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_LIBTOOL_CXX], [])
-dnl AC_DEFUN([AC_LIBTOOL_F77], [])
-dnl AC_DEFUN([AC_LIBTOOL_FC], [])
-dnl AC_DEFUN([AC_LIBTOOL_GCJ], [])
-
-
-# _LT_TAG_COMPILER
-# ----------------
-m4_defun([_LT_TAG_COMPILER],
-[AC_REQUIRE([AC_PROG_CC])dnl
-
-_LT_DECL([LTCC], [CC], [1], [A C compiler])dnl
-_LT_DECL([LTCFLAGS], [CFLAGS], [1], [LTCC compiler flags])dnl
-_LT_TAGDECL([CC], [compiler], [1], [A language specific compiler])dnl
-_LT_TAGDECL([with_gcc], [GCC], [0], [Is the compiler the GNU compiler?])dnl
-
-# If no C compiler was specified, use CC.
-LTCC=${LTCC-"$CC"}
-
-# If no C compiler flags were specified, use CFLAGS.
-LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
-
-# Allow CC to be a program name with arguments.
-compiler=$CC
-])# _LT_TAG_COMPILER
-
-
-# _LT_COMPILER_BOILERPLATE
-# ------------------------
-# Check for compiler boilerplate output or warnings with
-# the simple compiler test code.
-m4_defun([_LT_COMPILER_BOILERPLATE],
-[m4_require([_LT_DECL_SED])dnl
-ac_outfile=conftest.$ac_objext
-echo "$lt_simple_compile_test_code" >conftest.$ac_ext
-eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
-_lt_compiler_boilerplate=`cat conftest.err`
-$RM conftest*
-])# _LT_COMPILER_BOILERPLATE
-
-
-# _LT_LINKER_BOILERPLATE
-# ----------------------
-# Check for linker boilerplate output or warnings with
-# the simple link test code.
-m4_defun([_LT_LINKER_BOILERPLATE],
-[m4_require([_LT_DECL_SED])dnl
-ac_outfile=conftest.$ac_objext
-echo "$lt_simple_link_test_code" >conftest.$ac_ext
-eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
-_lt_linker_boilerplate=`cat conftest.err`
-$RM -r conftest*
-])# _LT_LINKER_BOILERPLATE
-
-# _LT_REQUIRED_DARWIN_CHECKS
-# -------------------------
-m4_defun_once([_LT_REQUIRED_DARWIN_CHECKS],[
-  case $host_os in
-    rhapsody* | darwin*)
-    AC_CHECK_TOOL([DSYMUTIL], [dsymutil], [:])
-    AC_CHECK_TOOL([NMEDIT], [nmedit], [:])
-    AC_CHECK_TOOL([LIPO], [lipo], [:])
-    AC_CHECK_TOOL([OTOOL], [otool], [:])
-    AC_CHECK_TOOL([OTOOL64], [otool64], [:])
-    _LT_DECL([], [DSYMUTIL], [1],
-      [Tool to manipulate archived DWARF debug symbol files on Mac OS X])
-    _LT_DECL([], [NMEDIT], [1],
-      [Tool to change global to local symbols on Mac OS X])
-    _LT_DECL([], [LIPO], [1],
-      [Tool to manipulate fat objects and archives on Mac OS X])
-    _LT_DECL([], [OTOOL], [1],
-      [ldd/readelf like tool for Mach-O binaries on Mac OS X])
-    _LT_DECL([], [OTOOL64], [1],
-      [ldd/readelf like tool for 64 bit Mach-O binaries on Mac OS X 10.4])
-
-    AC_CACHE_CHECK([for -single_module linker flag],[lt_cv_apple_cc_single_mod],
-      [lt_cv_apple_cc_single_mod=no
-      if test -z "${LT_MULTI_MODULE}"; then
-	# By default we will add the -single_module flag. You can override
-	# by either setting the environment variable LT_MULTI_MODULE
-	# non-empty at configure time, or by adding -multi_module to the
-	# link flags.
-	rm -rf libconftest.dylib*
-	echo "int foo(void){return 1;}" > conftest.c
-	echo "$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
--dynamiclib -Wl,-single_module conftest.c" >&AS_MESSAGE_LOG_FD
-	$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
-	  -dynamiclib -Wl,-single_module conftest.c 2>conftest.err
-        _lt_result=$?
-	if test -f libconftest.dylib && test ! -s conftest.err && test $_lt_result = 0; then
-	  lt_cv_apple_cc_single_mod=yes
-	else
-	  cat conftest.err >&AS_MESSAGE_LOG_FD
-	fi
-	rm -rf libconftest.dylib*
-	rm -f conftest.*
-      fi])
-    AC_CACHE_CHECK([for -exported_symbols_list linker flag],
-      [lt_cv_ld_exported_symbols_list],
-      [lt_cv_ld_exported_symbols_list=no
-      save_LDFLAGS=$LDFLAGS
-      echo "_main" > conftest.sym
-      LDFLAGS="$LDFLAGS -Wl,-exported_symbols_list,conftest.sym"
-      AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])],
-	[lt_cv_ld_exported_symbols_list=yes],
-	[lt_cv_ld_exported_symbols_list=no])
-	LDFLAGS="$save_LDFLAGS"
-    ])
-    case $host_os in
-    rhapsody* | darwin1.[[012]])
-      _lt_dar_allow_undefined='${wl}-undefined ${wl}suppress' ;;
-    darwin1.*)
-      _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
-    darwin*) # darwin 5.x on
-      # if running on 10.5 or later, the deployment target defaults
-      # to the OS version, if on x86, and 10.4, the deployment
-      # target defaults to 10.4. Don't you love it?
-      case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
-	10.0,*86*-darwin8*|10.0,*-darwin[[91]]*)
-	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
-	10.[[012]]*)
-	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
-	10.*)
-	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
-      esac
-    ;;
-  esac
-    if test "$lt_cv_apple_cc_single_mod" = "yes"; then
-      _lt_dar_single_mod='$single_module'
-    fi
-    if test "$lt_cv_ld_exported_symbols_list" = "yes"; then
-      _lt_dar_export_syms=' ${wl}-exported_symbols_list,$output_objdir/${libname}-symbols.expsym'
-    else
-      _lt_dar_export_syms='~$NMEDIT -s $output_objdir/${libname}-symbols.expsym ${lib}'
-    fi
-    if test "$DSYMUTIL" != ":"; then
-      _lt_dsymutil='~$DSYMUTIL $lib || :'
-    else
-      _lt_dsymutil=
-    fi
-    ;;
-  esac
-])
-
-
-# _LT_DARWIN_LINKER_FEATURES
-# --------------------------
-# Checks for linker and compiler features on darwin
-m4_defun([_LT_DARWIN_LINKER_FEATURES],
-[
-  m4_require([_LT_REQUIRED_DARWIN_CHECKS])
-  _LT_TAGVAR(archive_cmds_need_lc, $1)=no
-  _LT_TAGVAR(hardcode_direct, $1)=no
-  _LT_TAGVAR(hardcode_automatic, $1)=yes
-  _LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
-  _LT_TAGVAR(whole_archive_flag_spec, $1)=''
-  _LT_TAGVAR(link_all_deplibs, $1)=yes
-  _LT_TAGVAR(allow_undefined_flag, $1)="$_lt_dar_allow_undefined"
-  case $cc_basename in
-     ifort*) _lt_dar_can_shared=yes ;;
-     *) _lt_dar_can_shared=$GCC ;;
-  esac
-  if test "$_lt_dar_can_shared" = "yes"; then
-    output_verbose_link_cmd=echo
-    _LT_TAGVAR(archive_cmds, $1)="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod${_lt_dsymutil}"
-    _LT_TAGVAR(module_cmds, $1)="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dsymutil}"
-    _LT_TAGVAR(archive_expsym_cmds, $1)="sed 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring ${_lt_dar_single_mod}${_lt_dar_export_syms}${_lt_dsymutil}"
-    _LT_TAGVAR(module_expsym_cmds, $1)="sed -e 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dar_export_syms}${_lt_dsymutil}"
-    m4_if([$1], [CXX],
-[   if test "$lt_cv_apple_cc_single_mod" != "yes"; then
-      _LT_TAGVAR(archive_cmds, $1)="\$CC -r -keep_private_externs -nostdlib -o \${lib}-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \${lib}-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring${_lt_dsymutil}"
-      _LT_TAGVAR(archive_expsym_cmds, $1)="sed 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC -r -keep_private_externs -nostdlib -o \${lib}-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \${lib}-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring${_lt_dar_export_syms}${_lt_dsymutil}"
-    fi
-],[])
-  else
-  _LT_TAGVAR(ld_shlibs, $1)=no
-  fi
-])
-
-# _LT_SYS_MODULE_PATH_AIX
-# -----------------------
-# Links a minimal program and checks the executable
-# for the system default hardcoded library path. In most cases,
-# this is /usr/lib:/lib, but when the MPI compilers are used
-# the location of the communication and MPI libs are included too.
-# If we don't find anything, use the default library path according
-# to the aix ld manual.
-m4_defun([_LT_SYS_MODULE_PATH_AIX],
-[m4_require([_LT_DECL_SED])dnl
-AC_LINK_IFELSE(AC_LANG_PROGRAM,[
-lt_aix_libpath_sed='
-    /Import File Strings/,/^$/ {
-	/^0/ {
-	    s/^0  *\(.*\)$/\1/
-	    p
-	}
-    }'
-aix_libpath=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
-# Check for a 64-bit object if we didn't find anything.
-if test -z "$aix_libpath"; then
-  aix_libpath=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
-fi],[])
-if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
-])# _LT_SYS_MODULE_PATH_AIX
-
-
-# _LT_SHELL_INIT(ARG)
-# -------------------
-m4_define([_LT_SHELL_INIT],
-[ifdef([AC_DIVERSION_NOTICE],
-	     [AC_DIVERT_PUSH(AC_DIVERSION_NOTICE)],
-	 [AC_DIVERT_PUSH(NOTICE)])
-$1
-AC_DIVERT_POP
-])# _LT_SHELL_INIT
-
-
-# _LT_PROG_ECHO_BACKSLASH
-# -----------------------
-# Add some code to the start of the generated configure script which
-# will find an echo command which doesn't interpret backslashes.
-m4_defun([_LT_PROG_ECHO_BACKSLASH],
-[_LT_SHELL_INIT([
-# Check that we are running under the correct shell.
-SHELL=${CONFIG_SHELL-/bin/sh}
-
-case X$lt_ECHO in
-X*--fallback-echo)
-  # Remove one level of quotation (which was required for Make).
-  ECHO=`echo "$lt_ECHO" | sed 's,\\\\\[$]\\[$]0,'[$]0','`
-  ;;
-esac
-
-ECHO=${lt_ECHO-echo}
-if test "X[$]1" = X--no-reexec; then
-  # Discard the --no-reexec flag, and continue.
-  shift
-elif test "X[$]1" = X--fallback-echo; then
-  # Avoid inline document here, it may be left over
-  :
-elif test "X`{ $ECHO '\t'; } 2>/dev/null`" = 'X\t' ; then
-  # Yippee, $ECHO works!
-  :
-else
-  # Restart under the correct shell.
-  exec $SHELL "[$]0" --no-reexec ${1+"[$]@"}
-fi
-
-if test "X[$]1" = X--fallback-echo; then
-  # used as fallback echo
-  shift
-  cat <<_LT_EOF
-[$]*
-_LT_EOF
-  exit 0
-fi
-
-# The HP-UX ksh and POSIX shell print the target directory to stdout
-# if CDPATH is set.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
-
-if test -z "$lt_ECHO"; then
-  if test "X${echo_test_string+set}" != Xset; then
-    # find a string as large as possible, as long as the shell can cope with it
-    for cmd in 'sed 50q "[$]0"' 'sed 20q "[$]0"' 'sed 10q "[$]0"' 'sed 2q "[$]0"' 'echo test'; do
-      # expected sizes: less than 2Kb, 1Kb, 512 bytes, 16 bytes, ...
-      if { echo_test_string=`eval $cmd`; } 2>/dev/null &&
-	 { test "X$echo_test_string" = "X$echo_test_string"; } 2>/dev/null
-      then
-        break
-      fi
-    done
-  fi
-
-  if test "X`{ $ECHO '\t'; } 2>/dev/null`" = 'X\t' &&
-     echo_testing_string=`{ $ECHO "$echo_test_string"; } 2>/dev/null` &&
-     test "X$echo_testing_string" = "X$echo_test_string"; then
-    :
-  else
-    # The Solaris, AIX, and Digital Unix default echo programs unquote
-    # backslashes.  This makes it impossible to quote backslashes using
-    #   echo "$something" | sed 's/\\/\\\\/g'
-    #
-    # So, first we look for a working echo in the user's PATH.
-
-    lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
-    for dir in $PATH /usr/ucb; do
-      IFS="$lt_save_ifs"
-      if (test -f $dir/echo || test -f $dir/echo$ac_exeext) &&
-         test "X`($dir/echo '\t') 2>/dev/null`" = 'X\t' &&
-         echo_testing_string=`($dir/echo "$echo_test_string") 2>/dev/null` &&
-         test "X$echo_testing_string" = "X$echo_test_string"; then
-        ECHO="$dir/echo"
-        break
-      fi
-    done
-    IFS="$lt_save_ifs"
-
-    if test "X$ECHO" = Xecho; then
-      # We didn't find a better echo, so look for alternatives.
-      if test "X`{ print -r '\t'; } 2>/dev/null`" = 'X\t' &&
-         echo_testing_string=`{ print -r "$echo_test_string"; } 2>/dev/null` &&
-         test "X$echo_testing_string" = "X$echo_test_string"; then
-        # This shell has a builtin print -r that does the trick.
-        ECHO='print -r'
-      elif { test -f /bin/ksh || test -f /bin/ksh$ac_exeext; } &&
-	   test "X$CONFIG_SHELL" != X/bin/ksh; then
-        # If we have ksh, try running configure again with it.
-        ORIGINAL_CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
-        export ORIGINAL_CONFIG_SHELL
-        CONFIG_SHELL=/bin/ksh
-        export CONFIG_SHELL
-        exec $CONFIG_SHELL "[$]0" --no-reexec ${1+"[$]@"}
-      else
-        # Try using printf.
-        ECHO='printf %s\n'
-        if test "X`{ $ECHO '\t'; } 2>/dev/null`" = 'X\t' &&
-	   echo_testing_string=`{ $ECHO "$echo_test_string"; } 2>/dev/null` &&
-	   test "X$echo_testing_string" = "X$echo_test_string"; then
-	  # Cool, printf works
-	  :
-        elif echo_testing_string=`($ORIGINAL_CONFIG_SHELL "[$]0" --fallback-echo '\t') 2>/dev/null` &&
-	     test "X$echo_testing_string" = 'X\t' &&
-	     echo_testing_string=`($ORIGINAL_CONFIG_SHELL "[$]0" --fallback-echo "$echo_test_string") 2>/dev/null` &&
-	     test "X$echo_testing_string" = "X$echo_test_string"; then
-	  CONFIG_SHELL=$ORIGINAL_CONFIG_SHELL
-	  export CONFIG_SHELL
-	  SHELL="$CONFIG_SHELL"
-	  export SHELL
-	  ECHO="$CONFIG_SHELL [$]0 --fallback-echo"
-        elif echo_testing_string=`($CONFIG_SHELL "[$]0" --fallback-echo '\t') 2>/dev/null` &&
-	     test "X$echo_testing_string" = 'X\t' &&
-	     echo_testing_string=`($CONFIG_SHELL "[$]0" --fallback-echo "$echo_test_string") 2>/dev/null` &&
-	     test "X$echo_testing_string" = "X$echo_test_string"; then
-	  ECHO="$CONFIG_SHELL [$]0 --fallback-echo"
-        else
-	  # maybe with a smaller string...
-	  prev=:
-
-	  for cmd in 'echo test' 'sed 2q "[$]0"' 'sed 10q "[$]0"' 'sed 20q "[$]0"' 'sed 50q "[$]0"'; do
-	    if { test "X$echo_test_string" = "X`eval $cmd`"; } 2>/dev/null
-	    then
-	      break
-	    fi
-	    prev="$cmd"
-	  done
-
-	  if test "$prev" != 'sed 50q "[$]0"'; then
-	    echo_test_string=`eval $prev`
-	    export echo_test_string
-	    exec ${ORIGINAL_CONFIG_SHELL-${CONFIG_SHELL-/bin/sh}} "[$]0" ${1+"[$]@"}
-	  else
-	    # Oops.  We lost completely, so just stick with echo.
-	    ECHO=echo
-	  fi
-        fi
-      fi
-    fi
-  fi
-fi
-
-# Copy echo and quote the copy suitably for passing to libtool from
-# the Makefile, instead of quoting the original, which is used later.
-lt_ECHO=$ECHO
-if test "X$lt_ECHO" = "X$CONFIG_SHELL [$]0 --fallback-echo"; then
-   lt_ECHO="$CONFIG_SHELL \\\$\[$]0 --fallback-echo"
-fi
-
-AC_SUBST(lt_ECHO)
-])
-_LT_DECL([], [SHELL], [1], [Shell to use when invoking shell scripts])
-_LT_DECL([], [ECHO], [1],
-    [An echo program that does not interpret backslashes])
-])# _LT_PROG_ECHO_BACKSLASH
-
-
-# _LT_ENABLE_LOCK
-# ---------------
-m4_defun([_LT_ENABLE_LOCK],
-[AC_ARG_ENABLE([libtool-lock],
-  [AS_HELP_STRING([--disable-libtool-lock],
-    [avoid locking (might break parallel builds)])])
-test "x$enable_libtool_lock" != xno && enable_libtool_lock=yes
-
-# Some flags need to be propagated to the compiler or linker for good
-# libtool support.
-case $host in
-ia64-*-hpux*)
-  # Find out which ABI we are using.
-  echo 'int i;' > conftest.$ac_ext
-  if AC_TRY_EVAL(ac_compile); then
-    case `/usr/bin/file conftest.$ac_objext` in
-      *ELF-32*)
-	HPUX_IA64_MODE="32"
-	;;
-      *ELF-64*)
-	HPUX_IA64_MODE="64"
-	;;
-    esac
-  fi
-  rm -rf conftest*
-  ;;
-*-*-irix6*)
-  # Find out which ABI we are using.
-  echo '[#]line __oline__ "configure"' > conftest.$ac_ext
-  if AC_TRY_EVAL(ac_compile); then
-    if test "$lt_cv_prog_gnu_ld" = yes; then
-      case `/usr/bin/file conftest.$ac_objext` in
-	*32-bit*)
-	  LD="${LD-ld} -melf32bsmip"
-	  ;;
-	*N32*)
-	  LD="${LD-ld} -melf32bmipn32"
-	  ;;
-	*64-bit*)
-	  LD="${LD-ld} -melf64bmip"
-	;;
-      esac
-    else
-      case `/usr/bin/file conftest.$ac_objext` in
-	*32-bit*)
-	  LD="${LD-ld} -32"
-	  ;;
-	*N32*)
-	  LD="${LD-ld} -n32"
-	  ;;
-	*64-bit*)
-	  LD="${LD-ld} -64"
-	  ;;
-      esac
-    fi
-  fi
-  rm -rf conftest*
-  ;;
-
-x86_64-*kfreebsd*-gnu|x86_64-*linux*|ppc*-*linux*|powerpc*-*linux*| \
-s390*-*linux*|s390*-*tpf*|sparc*-*linux*)
-  # Find out which ABI we are using.
-  echo 'int i;' > conftest.$ac_ext
-  if AC_TRY_EVAL(ac_compile); then
-    case `/usr/bin/file conftest.o` in
-      *32-bit*)
-	case $host in
-	  x86_64-*kfreebsd*-gnu)
-	    LD="${LD-ld} -m elf_i386_fbsd"
-	    ;;
-	  x86_64-*linux*)
-	    LD="${LD-ld} -m elf_i386"
-	    ;;
-	  ppc64-*linux*|powerpc64-*linux*)
-	    LD="${LD-ld} -m elf32ppclinux"
-	    ;;
-	  s390x-*linux*)
-	    LD="${LD-ld} -m elf_s390"
-	    ;;
-	  sparc64-*linux*)
-	    LD="${LD-ld} -m elf32_sparc"
-	    ;;
-	esac
-	;;
-      *64-bit*)
-	case $host in
-	  x86_64-*kfreebsd*-gnu)
-	    LD="${LD-ld} -m elf_x86_64_fbsd"
-	    ;;
-	  x86_64-*linux*)
-	    LD="${LD-ld} -m elf_x86_64"
-	    ;;
-	  ppc*-*linux*|powerpc*-*linux*)
-	    LD="${LD-ld} -m elf64ppc"
-	    ;;
-	  s390*-*linux*|s390*-*tpf*)
-	    LD="${LD-ld} -m elf64_s390"
-	    ;;
-	  sparc*-*linux*)
-	    LD="${LD-ld} -m elf64_sparc"
-	    ;;
-	esac
-	;;
-    esac
-  fi
-  rm -rf conftest*
-  ;;
-
-*-*-sco3.2v5*)
-  # On SCO OpenServer 5, we need -belf to get full-featured binaries.
-  SAVE_CFLAGS="$CFLAGS"
-  CFLAGS="$CFLAGS -belf"
-  AC_CACHE_CHECK([whether the C compiler needs -belf], lt_cv_cc_needs_belf,
-    [AC_LANG_PUSH(C)
-     AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[]])],[lt_cv_cc_needs_belf=yes],[lt_cv_cc_needs_belf=no])
-     AC_LANG_POP])
-  if test x"$lt_cv_cc_needs_belf" != x"yes"; then
-    # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
-    CFLAGS="$SAVE_CFLAGS"
-  fi
-  ;;
-sparc*-*solaris*)
-  # Find out which ABI we are using.
-  echo 'int i;' > conftest.$ac_ext
-  if AC_TRY_EVAL(ac_compile); then
-    case `/usr/bin/file conftest.o` in
-    *64-bit*)
-      case $lt_cv_prog_gnu_ld in
-      yes*) LD="${LD-ld} -m elf64_sparc" ;;
-      *)
-	if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then
-	  LD="${LD-ld} -64"
-	fi
-	;;
-      esac
-      ;;
-    esac
-  fi
-  rm -rf conftest*
-  ;;
-esac
-
-need_locks="$enable_libtool_lock"
-])# _LT_ENABLE_LOCK
-
-
-# _LT_CMD_OLD_ARCHIVE
-# -------------------
-m4_defun([_LT_CMD_OLD_ARCHIVE],
-[AC_CHECK_TOOL(AR, ar, false)
-test -z "$AR" && AR=ar
-test -z "$AR_FLAGS" && AR_FLAGS=cru
-_LT_DECL([], [AR], [1], [The archiver])
-_LT_DECL([], [AR_FLAGS], [1])
-
-AC_CHECK_TOOL(STRIP, strip, :)
-test -z "$STRIP" && STRIP=:
-_LT_DECL([], [STRIP], [1], [A symbol stripping program])
-
-AC_CHECK_TOOL(RANLIB, ranlib, :)
-test -z "$RANLIB" && RANLIB=:
-_LT_DECL([], [RANLIB], [1],
-    [Commands used to install an old-style archive])
-
-# Determine commands to create old-style static archives.
-old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs'
-old_postinstall_cmds='chmod 644 $oldlib'
-old_postuninstall_cmds=
-
-if test -n "$RANLIB"; then
-  case $host_os in
-  openbsd*)
-    old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$oldlib"
-    ;;
-  *)
-    old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$oldlib"
-    ;;
-  esac
-  old_archive_cmds="$old_archive_cmds~\$RANLIB \$oldlib"
-fi
-_LT_DECL([], [old_postinstall_cmds], [2])
-_LT_DECL([], [old_postuninstall_cmds], [2])
-_LT_TAGDECL([], [old_archive_cmds], [2],
-    [Commands used to build an old-style archive])
-])# _LT_CMD_OLD_ARCHIVE
-
-
-# _LT_COMPILER_OPTION(MESSAGE, VARIABLE-NAME, FLAGS,
-#		[OUTPUT-FILE], [ACTION-SUCCESS], [ACTION-FAILURE])
-# ----------------------------------------------------------------
-# Check whether the given compiler option works
-AC_DEFUN([_LT_COMPILER_OPTION],
-[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-m4_require([_LT_DECL_SED])dnl
-AC_CACHE_CHECK([$1], [$2],
-  [$2=no
-   m4_if([$4], , [ac_outfile=conftest.$ac_objext], [ac_outfile=$4])
-   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
-   lt_compiler_flag="$3"
-   # Insert the option either (1) after the last *FLAGS variable, or
-   # (2) before a word containing "conftest.", or (3) at the end.
-   # Note that $ac_compile itself does not contain backslashes and begins
-   # with a dollar sign (not a hyphen), so the echo should work correctly.
-   # The option is referenced via a variable to avoid confusing sed.
-   lt_compile=`echo "$ac_compile" | $SED \
-   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
-   -e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \
-   -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:__oline__: $lt_compile\"" >&AS_MESSAGE_LOG_FD)
-   (eval "$lt_compile" 2>conftest.err)
-   ac_status=$?
-   cat conftest.err >&AS_MESSAGE_LOG_FD
-   echo "$as_me:__oline__: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
-   if (exit $ac_status) && test -s "$ac_outfile"; then
-     # The compiler can only warn and ignore the option if not recognized
-     # So say no if there are warnings other than the usual output.
-     $ECHO "X$_lt_compiler_boilerplate" | $Xsed -e '/^$/d' >conftest.exp
-     $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
-     if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
-       $2=yes
-     fi
-   fi
-   $RM conftest*
-])
-
-if test x"[$]$2" = xyes; then
-    m4_if([$5], , :, [$5])
-else
-    m4_if([$6], , :, [$6])
-fi
-])# _LT_COMPILER_OPTION
-
-# Old name:
-AU_ALIAS([AC_LIBTOOL_COMPILER_OPTION], [_LT_COMPILER_OPTION])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_LIBTOOL_COMPILER_OPTION], [])
-
-
-# _LT_LINKER_OPTION(MESSAGE, VARIABLE-NAME, FLAGS,
-#                  [ACTION-SUCCESS], [ACTION-FAILURE])
-# ----------------------------------------------------
-# Check whether the given linker option works
-AC_DEFUN([_LT_LINKER_OPTION],
-[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-m4_require([_LT_DECL_SED])dnl
-AC_CACHE_CHECK([$1], [$2],
-  [$2=no
-   save_LDFLAGS="$LDFLAGS"
-   LDFLAGS="$LDFLAGS $3"
-   echo "$lt_simple_link_test_code" > conftest.$ac_ext
-   if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
-     # The linker can only warn and ignore the option if not recognized
-     # So say no if there are warnings
-     if test -s conftest.err; then
-       # Append any errors to the config.log.
-       cat conftest.err 1>&AS_MESSAGE_LOG_FD
-       $ECHO "X$_lt_linker_boilerplate" | $Xsed -e '/^$/d' > conftest.exp
-       $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
-       if diff conftest.exp conftest.er2 >/dev/null; then
-         $2=yes
-       fi
-     else
-       $2=yes
-     fi
-   fi
-   $RM -r conftest*
-   LDFLAGS="$save_LDFLAGS"
-])
-
-if test x"[$]$2" = xyes; then
-    m4_if([$4], , :, [$4])
-else
-    m4_if([$5], , :, [$5])
-fi
-])# _LT_LINKER_OPTION
-
-# Old name:
-AU_ALIAS([AC_LIBTOOL_LINKER_OPTION], [_LT_LINKER_OPTION])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_LIBTOOL_LINKER_OPTION], [])
-
-
-# LT_CMD_MAX_LEN
-#---------------
-AC_DEFUN([LT_CMD_MAX_LEN],
-[AC_REQUIRE([AC_CANONICAL_HOST])dnl
-# find the maximum length of command line arguments
-AC_MSG_CHECKING([the maximum length of command line arguments])
-AC_CACHE_VAL([lt_cv_sys_max_cmd_len], [dnl
-  i=0
-  teststring="ABCD"
-
-  case $build_os in
-  msdosdjgpp*)
-    # On DJGPP, this test can blow up pretty badly due to problems in libc
-    # (any single argument exceeding 2000 bytes causes a buffer overrun
-    # during glob expansion).  Even if it were fixed, the result of this
-    # check would be larger than it should be.
-    lt_cv_sys_max_cmd_len=12288;    # 12K is about right
-    ;;
-
-  gnu*)
-    # Under GNU Hurd, this test is not required because there is
-    # no limit to the length of command line arguments.
-    # Libtool will interpret -1 as no limit whatsoever
-    lt_cv_sys_max_cmd_len=-1;
-    ;;
-
-  cygwin* | mingw* | cegcc*)
-    # On Win9x/ME, this test blows up -- it succeeds, but takes
-    # about 5 minutes as the teststring grows exponentially.
-    # Worse, since 9x/ME are not pre-emptively multitasking,
-    # you end up with a "frozen" computer, even though with patience
-    # the test eventually succeeds (with a max line length of 256k).
-    # Instead, let's just punt: use the minimum linelength reported by
-    # all of the supported platforms: 8192 (on NT/2K/XP).
-    lt_cv_sys_max_cmd_len=8192;
-    ;;
-
-  amigaos*)
-    # On AmigaOS with pdksh, this test takes hours, literally.
-    # So we just punt and use a minimum line length of 8192.
-    lt_cv_sys_max_cmd_len=8192;
-    ;;
-
-  netbsd* | freebsd* | openbsd* | darwin* | dragonfly*)
-    # This has been around since 386BSD, at least.  Likely further.
-    if test -x /sbin/sysctl; then
-      lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax`
-    elif test -x /usr/sbin/sysctl; then
-      lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax`
-    else
-      lt_cv_sys_max_cmd_len=65536	# usable default for all BSDs
-    fi
-    # And add a safety zone
-    lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
-    lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
-    ;;
-
-  interix*)
-    # We know the value 262144 and hardcode it with a safety zone (like BSD)
-    lt_cv_sys_max_cmd_len=196608
-    ;;
-
-  osf*)
-    # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure
-    # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not
-    # nice to cause kernel panics so lets avoid the loop below.
-    # First set a reasonable default.
-    lt_cv_sys_max_cmd_len=16384
-    #
-    if test -x /sbin/sysconfig; then
-      case `/sbin/sysconfig -q proc exec_disable_arg_limit` in
-        *1*) lt_cv_sys_max_cmd_len=-1 ;;
-      esac
-    fi
-    ;;
-  sco3.2v5*)
-    lt_cv_sys_max_cmd_len=102400
-    ;;
-  sysv5* | sco5v6* | sysv4.2uw2*)
-    kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null`
-    if test -n "$kargmax"; then
-      lt_cv_sys_max_cmd_len=`echo $kargmax | sed 's/.*[[	 ]]//'`
-    else
-      lt_cv_sys_max_cmd_len=32768
-    fi
-    ;;
-  *)
-    lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null`
-    if test -n "$lt_cv_sys_max_cmd_len"; then
-      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
-      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
-    else
-      # Make teststring a little bigger before we do anything with it.
-      # a 1K string should be a reasonable start.
-      for i in 1 2 3 4 5 6 7 8 ; do
-        teststring=$teststring$teststring
-      done
-      SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}}
-      # If test is not a shell built-in, we'll probably end up computing a
-      # maximum length that is only half of the actual maximum length, but
-      # we can't tell.
-      while { test "X"`$SHELL [$]0 --fallback-echo "X$teststring$teststring" 2>/dev/null` \
-	         = "XX$teststring$teststring"; } >/dev/null 2>&1 &&
-	      test $i != 17 # 1/2 MB should be enough
-      do
-        i=`expr $i + 1`
-        teststring=$teststring$teststring
-      done
-      # Only check the string length outside the loop.
-      lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1`
-      teststring=
-      # Add a significant safety factor because C++ compilers can tack on
-      # massive amounts of additional arguments before passing them to the
-      # linker.  It appears as though 1/2 is a usable value.
-      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2`
-    fi
-    ;;
-  esac
-])
-if test -n $lt_cv_sys_max_cmd_len ; then
-  AC_MSG_RESULT($lt_cv_sys_max_cmd_len)
-else
-  AC_MSG_RESULT(none)
-fi
-max_cmd_len=$lt_cv_sys_max_cmd_len
-_LT_DECL([], [max_cmd_len], [0],
-    [What is the maximum length of a command?])
-])# LT_CMD_MAX_LEN
-
-# Old name:
-AU_ALIAS([AC_LIBTOOL_SYS_MAX_CMD_LEN], [LT_CMD_MAX_LEN])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_LIBTOOL_SYS_MAX_CMD_LEN], [])
-
-
-# _LT_HEADER_DLFCN
-# ----------------
-m4_defun([_LT_HEADER_DLFCN],
-[AC_CHECK_HEADERS([dlfcn.h], [], [], [AC_INCLUDES_DEFAULT])dnl
-])# _LT_HEADER_DLFCN
-
-
-# _LT_TRY_DLOPEN_SELF (ACTION-IF-TRUE, ACTION-IF-TRUE-W-USCORE,
-#                      ACTION-IF-FALSE, ACTION-IF-CROSS-COMPILING)
-# ----------------------------------------------------------------
-m4_defun([_LT_TRY_DLOPEN_SELF],
-[m4_require([_LT_HEADER_DLFCN])dnl
-if test "$cross_compiling" = yes; then :
-  [$4]
-else
-  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
-  lt_status=$lt_dlunknown
-  cat > conftest.$ac_ext <<_LT_EOF
-[#line __oline__ "configure"
-#include "confdefs.h"
-
-#if HAVE_DLFCN_H
-#include <dlfcn.h>
-#endif
-
-#include <stdio.h>
-
-#ifdef RTLD_GLOBAL
-#  define LT_DLGLOBAL		RTLD_GLOBAL
-#else
-#  ifdef DL_GLOBAL
-#    define LT_DLGLOBAL		DL_GLOBAL
-#  else
-#    define LT_DLGLOBAL		0
-#  endif
-#endif
-
-/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
-   find out it does not work in some platform. */
-#ifndef LT_DLLAZY_OR_NOW
-#  ifdef RTLD_LAZY
-#    define LT_DLLAZY_OR_NOW		RTLD_LAZY
-#  else
-#    ifdef DL_LAZY
-#      define LT_DLLAZY_OR_NOW		DL_LAZY
-#    else
-#      ifdef RTLD_NOW
-#        define LT_DLLAZY_OR_NOW	RTLD_NOW
-#      else
-#        ifdef DL_NOW
-#          define LT_DLLAZY_OR_NOW	DL_NOW
-#        else
-#          define LT_DLLAZY_OR_NOW	0
-#        endif
-#      endif
-#    endif
-#  endif
-#endif
-
-void fnord() { int i=42;}
-int main ()
-{
-  void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
-  int status = $lt_dlunknown;
-
-  if (self)
-    {
-      if (dlsym (self,"fnord"))       status = $lt_dlno_uscore;
-      else if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore;
-      /* dlclose (self); */
-    }
-  else
-    puts (dlerror ());
-
-  return status;
-}]
-_LT_EOF
-  if AC_TRY_EVAL(ac_link) && test -s conftest${ac_exeext} 2>/dev/null; then
-    (./conftest; exit; ) >&AS_MESSAGE_LOG_FD 2>/dev/null
-    lt_status=$?
-    case x$lt_status in
-      x$lt_dlno_uscore) $1 ;;
-      x$lt_dlneed_uscore) $2 ;;
-      x$lt_dlunknown|x*) $3 ;;
-    esac
-  else :
-    # compilation failed
-    $3
-  fi
-fi
-rm -fr conftest*
-])# _LT_TRY_DLOPEN_SELF
-
-
-# LT_SYS_DLOPEN_SELF
-# ------------------
-AC_DEFUN([LT_SYS_DLOPEN_SELF],
-[m4_require([_LT_HEADER_DLFCN])dnl
-if test "x$enable_dlopen" != xyes; then
-  enable_dlopen=unknown
-  enable_dlopen_self=unknown
-  enable_dlopen_self_static=unknown
-else
-  lt_cv_dlopen=no
-  lt_cv_dlopen_libs=
-
-  case $host_os in
-  beos*)
-    lt_cv_dlopen="load_add_on"
-    lt_cv_dlopen_libs=
-    lt_cv_dlopen_self=yes
-    ;;
-
-  mingw* | pw32* | cegcc*)
-    lt_cv_dlopen="LoadLibrary"
-    lt_cv_dlopen_libs=
-    ;;
-
-  cygwin*)
-    lt_cv_dlopen="dlopen"
-    lt_cv_dlopen_libs=
-    ;;
-
-  darwin*)
-  # if libdl is installed we need to link against it
-    AC_CHECK_LIB([dl], [dlopen],
-		[lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"],[
-    lt_cv_dlopen="dyld"
-    lt_cv_dlopen_libs=
-    lt_cv_dlopen_self=yes
-    ])
-    ;;
-
-  *)
-    AC_CHECK_FUNC([shl_load],
-	  [lt_cv_dlopen="shl_load"],
-      [AC_CHECK_LIB([dld], [shl_load],
-	    [lt_cv_dlopen="shl_load" lt_cv_dlopen_libs="-ldld"],
-	[AC_CHECK_FUNC([dlopen],
-	      [lt_cv_dlopen="dlopen"],
-	  [AC_CHECK_LIB([dl], [dlopen],
-		[lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"],
-	    [AC_CHECK_LIB([svld], [dlopen],
-		  [lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-lsvld"],
-	      [AC_CHECK_LIB([dld], [dld_link],
-		    [lt_cv_dlopen="dld_link" lt_cv_dlopen_libs="-ldld"])
-	      ])
-	    ])
-	  ])
-	])
-      ])
-    ;;
-  esac
-
-  if test "x$lt_cv_dlopen" != xno; then
-    enable_dlopen=yes
-  else
-    enable_dlopen=no
-  fi
-
-  case $lt_cv_dlopen in
-  dlopen)
-    save_CPPFLAGS="$CPPFLAGS"
-    test "x$ac_cv_header_dlfcn_h" = xyes && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H"
-
-    save_LDFLAGS="$LDFLAGS"
-    wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\"
-
-    save_LIBS="$LIBS"
-    LIBS="$lt_cv_dlopen_libs $LIBS"
-
-    AC_CACHE_CHECK([whether a program can dlopen itself],
-	  lt_cv_dlopen_self, [dnl
-	  _LT_TRY_DLOPEN_SELF(
-	    lt_cv_dlopen_self=yes, lt_cv_dlopen_self=yes,
-	    lt_cv_dlopen_self=no, lt_cv_dlopen_self=cross)
-    ])
-
-    if test "x$lt_cv_dlopen_self" = xyes; then
-      wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\"
-      AC_CACHE_CHECK([whether a statically linked program can dlopen itself],
-	  lt_cv_dlopen_self_static, [dnl
-	  _LT_TRY_DLOPEN_SELF(
-	    lt_cv_dlopen_self_static=yes, lt_cv_dlopen_self_static=yes,
-	    lt_cv_dlopen_self_static=no,  lt_cv_dlopen_self_static=cross)
-      ])
-    fi
-
-    CPPFLAGS="$save_CPPFLAGS"
-    LDFLAGS="$save_LDFLAGS"
-    LIBS="$save_LIBS"
-    ;;
-  esac
-
-  case $lt_cv_dlopen_self in
-  yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;;
-  *) enable_dlopen_self=unknown ;;
-  esac
-
-  case $lt_cv_dlopen_self_static in
-  yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;;
-  *) enable_dlopen_self_static=unknown ;;
-  esac
-fi
-_LT_DECL([dlopen_support], [enable_dlopen], [0],
-	 [Whether dlopen is supported])
-_LT_DECL([dlopen_self], [enable_dlopen_self], [0],
-	 [Whether dlopen of programs is supported])
-_LT_DECL([dlopen_self_static], [enable_dlopen_self_static], [0],
-	 [Whether dlopen of statically linked programs is supported])
-])# LT_SYS_DLOPEN_SELF
-
-# Old name:
-AU_ALIAS([AC_LIBTOOL_DLOPEN_SELF], [LT_SYS_DLOPEN_SELF])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_LIBTOOL_DLOPEN_SELF], [])
-
-
-# _LT_COMPILER_C_O([TAGNAME])
-# ---------------------------
-# Check to see if options -c and -o are simultaneously supported by compiler.
-# This macro does not hard code the compiler like AC_PROG_CC_C_O.
-m4_defun([_LT_COMPILER_C_O],
-[m4_require([_LT_DECL_SED])dnl
-m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-m4_require([_LT_TAG_COMPILER])dnl
-AC_CACHE_CHECK([if $compiler supports -c -o file.$ac_objext],
-  [_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)],
-  [_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=no
-   $RM -r conftest 2>/dev/null
-   mkdir conftest
-   cd conftest
-   mkdir out
-   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
-
-   lt_compiler_flag="-o out/conftest2.$ac_objext"
-   # Insert the option either (1) after the last *FLAGS variable, or
-   # (2) before a word containing "conftest.", or (3) at the end.
-   # Note that $ac_compile itself does not contain backslashes and begins
-   # with a dollar sign (not a hyphen), so the echo should work correctly.
-   lt_compile=`echo "$ac_compile" | $SED \
-   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
-   -e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \
-   -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:__oline__: $lt_compile\"" >&AS_MESSAGE_LOG_FD)
-   (eval "$lt_compile" 2>out/conftest.err)
-   ac_status=$?
-   cat out/conftest.err >&AS_MESSAGE_LOG_FD
-   echo "$as_me:__oline__: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
-   if (exit $ac_status) && test -s out/conftest2.$ac_objext
-   then
-     # The compiler can only warn and ignore the option if not recognized
-     # So say no if there are warnings
-     $ECHO "X$_lt_compiler_boilerplate" | $Xsed -e '/^$/d' > out/conftest.exp
-     $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
-     if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
-       _LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes
-     fi
-   fi
-   chmod u+w . 2>&AS_MESSAGE_LOG_FD
-   $RM conftest*
-   # SGI C++ compiler will create directory out/ii_files/ for
-   # template instantiation
-   test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
-   $RM out/* && rmdir out
-   cd ..
-   $RM -r conftest
-   $RM conftest*
-])
-_LT_TAGDECL([compiler_c_o], [lt_cv_prog_compiler_c_o], [1],
-	[Does compiler simultaneously support -c and -o options?])
-])# _LT_COMPILER_C_O
-
-
-# _LT_COMPILER_FILE_LOCKS([TAGNAME])
-# ----------------------------------
-# Check to see if we can do hard links to lock some files if needed
-m4_defun([_LT_COMPILER_FILE_LOCKS],
-[m4_require([_LT_ENABLE_LOCK])dnl
-m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-_LT_COMPILER_C_O([$1])
-
-hard_links="nottested"
-if test "$_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)" = no && test "$need_locks" != no; then
-  # do not overwrite the value of need_locks provided by the user
-  AC_MSG_CHECKING([if we can lock with hard links])
-  hard_links=yes
-  $RM conftest*
-  ln conftest.a conftest.b 2>/dev/null && hard_links=no
-  touch conftest.a
-  ln conftest.a conftest.b 2>&5 || hard_links=no
-  ln conftest.a conftest.b 2>/dev/null && hard_links=no
-  AC_MSG_RESULT([$hard_links])
-  if test "$hard_links" = no; then
-    AC_MSG_WARN([`$CC' does not support `-c -o', so `make -j' may be unsafe])
-    need_locks=warn
-  fi
-else
-  need_locks=no
-fi
-_LT_DECL([], [need_locks], [1], [Must we lock files when doing compilation?])
-])# _LT_COMPILER_FILE_LOCKS
-
-
-# _LT_CHECK_OBJDIR
-# ----------------
-m4_defun([_LT_CHECK_OBJDIR],
-[AC_CACHE_CHECK([for objdir], [lt_cv_objdir],
-[rm -f .libs 2>/dev/null
-mkdir .libs 2>/dev/null
-if test -d .libs; then
-  lt_cv_objdir=.libs
-else
-  # MS-DOS does not allow filenames that begin with a dot.
-  lt_cv_objdir=_libs
-fi
-rmdir .libs 2>/dev/null])
-objdir=$lt_cv_objdir
-_LT_DECL([], [objdir], [0],
-         [The name of the directory that contains temporary libtool files])dnl
-m4_pattern_allow([LT_OBJDIR])dnl
-AC_DEFINE_UNQUOTED(LT_OBJDIR, "$lt_cv_objdir/",
-  [Define to the sub-directory in which libtool stores uninstalled libraries.])
-])# _LT_CHECK_OBJDIR
-
-
-# _LT_LINKER_HARDCODE_LIBPATH([TAGNAME])
-# --------------------------------------
-# Check hardcoding attributes.
-m4_defun([_LT_LINKER_HARDCODE_LIBPATH],
-[AC_MSG_CHECKING([how to hardcode library paths into programs])
-_LT_TAGVAR(hardcode_action, $1)=
-if test -n "$_LT_TAGVAR(hardcode_libdir_flag_spec, $1)" ||
-   test -n "$_LT_TAGVAR(runpath_var, $1)" ||
-   test "X$_LT_TAGVAR(hardcode_automatic, $1)" = "Xyes" ; then
-
-  # We can hardcode non-existent directories.
-  if test "$_LT_TAGVAR(hardcode_direct, $1)" != no &&
-     # If the only mechanism to avoid hardcoding is shlibpath_var, we
-     # have to relink, otherwise we might link with an installed library
-     # when we should be linking with a yet-to-be-installed one
-     ## test "$_LT_TAGVAR(hardcode_shlibpath_var, $1)" != no &&
-     test "$_LT_TAGVAR(hardcode_minus_L, $1)" != no; then
-    # Linking always hardcodes the temporary library directory.
-    _LT_TAGVAR(hardcode_action, $1)=relink
-  else
-    # We can link without hardcoding, and we can hardcode nonexisting dirs.
-    _LT_TAGVAR(hardcode_action, $1)=immediate
-  fi
-else
-  # We cannot hardcode anything, or else we can only hardcode existing
-  # directories.
-  _LT_TAGVAR(hardcode_action, $1)=unsupported
-fi
-AC_MSG_RESULT([$_LT_TAGVAR(hardcode_action, $1)])
-
-if test "$_LT_TAGVAR(hardcode_action, $1)" = relink ||
-   test "$_LT_TAGVAR(inherit_rpath, $1)" = yes; then
-  # Fast installation is not supported
-  enable_fast_install=no
-elif test "$shlibpath_overrides_runpath" = yes ||
-     test "$enable_shared" = no; then
-  # Fast installation is not necessary
-  enable_fast_install=needless
-fi
-_LT_TAGDECL([], [hardcode_action], [0],
-    [How to hardcode a shared library path into an executable])
-])# _LT_LINKER_HARDCODE_LIBPATH
-
-
-# _LT_CMD_STRIPLIB
-# ----------------
-m4_defun([_LT_CMD_STRIPLIB],
-[m4_require([_LT_DECL_EGREP])
-striplib=
-old_striplib=
-AC_MSG_CHECKING([whether stripping libraries is possible])
-if test -n "$STRIP" && $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then
-  test -z "$old_striplib" && old_striplib="$STRIP --strip-debug"
-  test -z "$striplib" && striplib="$STRIP --strip-unneeded"
-  AC_MSG_RESULT([yes])
-else
-# FIXME - insert some real tests, host_os isn't really good enough
-  case $host_os in
-  darwin*)
-    if test -n "$STRIP" ; then
-      striplib="$STRIP -x"
-      old_striplib="$STRIP -S"
-      AC_MSG_RESULT([yes])
-    else
-      AC_MSG_RESULT([no])
-    fi
-    ;;
-  *)
-    AC_MSG_RESULT([no])
-    ;;
-  esac
-fi
-_LT_DECL([], [old_striplib], [1], [Commands to strip libraries])
-_LT_DECL([], [striplib], [1])
-])# _LT_CMD_STRIPLIB
-
-
-# _LT_SYS_DYNAMIC_LINKER([TAG])
-# -----------------------------
-# PORTME Fill in your ld.so characteristics
-m4_defun([_LT_SYS_DYNAMIC_LINKER],
-[AC_REQUIRE([AC_CANONICAL_HOST])dnl
-m4_require([_LT_DECL_EGREP])dnl
-m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-m4_require([_LT_DECL_OBJDUMP])dnl
-m4_require([_LT_DECL_SED])dnl
-AC_MSG_CHECKING([dynamic linker characteristics])
-m4_if([$1],
-	[], [
-if test "$GCC" = yes; then
-  case $host_os in
-    darwin*) lt_awk_arg="/^libraries:/,/LR/" ;;
-    *) lt_awk_arg="/^libraries:/" ;;
-  esac
-  lt_search_path_spec=`$CC -print-search-dirs | awk $lt_awk_arg | $SED -e "s/^libraries://" -e "s,=/,/,g"`
-  if $ECHO "$lt_search_path_spec" | $GREP ';' >/dev/null ; then
-    # if the path contains ";" then we assume it to be the separator
-    # otherwise default to the standard path separator (i.e. ":") - it is
-    # assumed that no part of a normal pathname contains ";" but that should
-    # okay in the real world where ";" in dirpaths is itself problematic.
-    lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED -e 's/;/ /g'`
-  else
-    lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED  -e "s/$PATH_SEPARATOR/ /g"`
-  fi
-  # Ok, now we have the path, separated by spaces, we can step through it
-  # and add multilib dir if necessary.
-  lt_tmp_lt_search_path_spec=
-  lt_multi_os_dir=`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null`
-  for lt_sys_path in $lt_search_path_spec; do
-    if test -d "$lt_sys_path/$lt_multi_os_dir"; then
-      lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path/$lt_multi_os_dir"
-    else
-      test -d "$lt_sys_path" && \
-	lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path"
-    fi
-  done
-  lt_search_path_spec=`$ECHO $lt_tmp_lt_search_path_spec | awk '
-BEGIN {RS=" "; FS="/|\n";} {
-  lt_foo="";
-  lt_count=0;
-  for (lt_i = NF; lt_i > 0; lt_i--) {
-    if ($lt_i != "" && $lt_i != ".") {
-      if ($lt_i == "..") {
-        lt_count++;
-      } else {
-        if (lt_count == 0) {
-          lt_foo="/" $lt_i lt_foo;
-        } else {
-          lt_count--;
-        }
-      }
-    }
-  }
-  if (lt_foo != "") { lt_freq[[lt_foo]]++; }
-  if (lt_freq[[lt_foo]] == 1) { print lt_foo; }
-}'`
-  sys_lib_search_path_spec=`$ECHO $lt_search_path_spec`
-else
-  sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
-fi])
-library_names_spec=
-libname_spec='lib$name'
-soname_spec=
-shrext_cmds=".so"
-postinstall_cmds=
-postuninstall_cmds=
-finish_cmds=
-finish_eval=
-shlibpath_var=
-shlibpath_overrides_runpath=unknown
-version_type=none
-dynamic_linker="$host_os ld.so"
-sys_lib_dlsearch_path_spec="/lib /usr/lib"
-need_lib_prefix=unknown
-hardcode_into_libs=no
-
-# when you set need_version to no, make sure it does not cause -set_version
-# flags to be left without arguments
-need_version=unknown
-
-case $host_os in
-aix3*)
-  version_type=linux
-  library_names_spec='${libname}${release}${shared_ext}$versuffix $libname.a'
-  shlibpath_var=LIBPATH
-
-  # AIX 3 has no versioning support, so we append a major version to the name.
-  soname_spec='${libname}${release}${shared_ext}$major'
-  ;;
-
-aix[[4-9]]*)
-  version_type=linux
-  need_lib_prefix=no
-  need_version=no
-  hardcode_into_libs=yes
-  if test "$host_cpu" = ia64; then
-    # AIX 5 supports IA64
-    library_names_spec='${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext}$versuffix $libname${shared_ext}'
-    shlibpath_var=LD_LIBRARY_PATH
-  else
-    # With GCC up to 2.95.x, collect2 would create an import file
-    # for dependence libraries.  The import file would start with
-    # the line `#! .'.  This would cause the generated library to
-    # depend on `.', always an invalid library.  This was fixed in
-    # development snapshots of GCC prior to 3.0.
-    case $host_os in
-      aix4 | aix4.[[01]] | aix4.[[01]].*)
-      if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
-	   echo ' yes '
-	   echo '#endif'; } | ${CC} -E - | $GREP yes > /dev/null; then
-	:
-      else
-	can_build_shared=no
-      fi
-      ;;
-    esac
-    # AIX (on Power*) has no versioning support, so currently we can not hardcode correct
-    # soname into executable. Probably we can add versioning support to
-    # collect2, so additional links can be useful in future.
-    if test "$aix_use_runtimelinking" = yes; then
-      # If using run time linking (on AIX 4.2 or later) use lib<name>.so
-      # instead of lib<name>.a to let people know that these are not
-      # typical AIX shared libraries.
-      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
-    else
-      # We preserve .a as extension for shared libraries through AIX4.2
-      # and later when we are not doing run time linking.
-      library_names_spec='${libname}${release}.a $libname.a'
-      soname_spec='${libname}${release}${shared_ext}$major'
-    fi
-    shlibpath_var=LIBPATH
-  fi
-  ;;
-
-amigaos*)
-  case $host_cpu in
-  powerpc)
-    # Since July 2007 AmigaOS4 officially supports .so libraries.
-    # When compiling the executable, add -use-dynld -Lsobjs: to the compileline.
-    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
-    ;;
-  m68k)
-    library_names_spec='$libname.ixlibrary $libname.a'
-    # Create ${libname}_ixlibrary.a entries in /sys/libs.
-    finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`$ECHO "X$lib" | $Xsed -e '\''s%^.*/\([[^/]]*\)\.ixlibrary$%\1%'\''`; test $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done'
-    ;;
-  esac
-  ;;
-
-beos*)
-  library_names_spec='${libname}${shared_ext}'
-  dynamic_linker="$host_os ld.so"
-  shlibpath_var=LIBRARY_PATH
-  ;;
-
-bsdi[[45]]*)
-  version_type=linux
-  need_version=no
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
-  soname_spec='${libname}${release}${shared_ext}$major'
-  finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
-  shlibpath_var=LD_LIBRARY_PATH
-  sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
-  sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
-  # the default ld.so.conf also contains /usr/contrib/lib and
-  # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
-  # libtool to hard-code these into programs
-  ;;
-
-cygwin* | mingw* | pw32* | cegcc*)
-  version_type=windows
-  shrext_cmds=".dll"
-  need_version=no
-  need_lib_prefix=no
-
-  case $GCC,$host_os in
-  yes,cygwin* | yes,mingw* | yes,pw32* | yes,cegcc*)
-    library_names_spec='$libname.dll.a'
-    # DLL is installed to $(libdir)/../bin by postinstall_cmds
-    postinstall_cmds='base_file=`basename \${file}`~
-      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i; echo \$dlname'\''`~
-      dldir=$destdir/`dirname \$dlpath`~
-      test -d \$dldir || mkdir -p \$dldir~
-      $install_prog $dir/$dlname \$dldir/$dlname~
-      chmod a+x \$dldir/$dlname~
-      if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
-        eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
-      fi'
-    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
-      dlpath=$dir/\$dldll~
-       $RM \$dlpath'
-    shlibpath_overrides_runpath=yes
-
-    case $host_os in
-    cygwin*)
-      # Cygwin DLLs use 'cyg' prefix rather than 'lib'
-      soname_spec='`echo ${libname} | sed -e 's/^lib/cyg/'``echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext}'
-      sys_lib_search_path_spec="/usr/lib /lib/w32api /lib /usr/local/lib"
-      ;;
-    mingw* | cegcc*)
-      # MinGW DLLs use traditional 'lib' prefix
-      soname_spec='${libname}`echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext}'
-      sys_lib_search_path_spec=`$CC -print-search-dirs | $GREP "^libraries:" | $SED -e "s/^libraries://" -e "s,=/,/,g"`
-      if $ECHO "$sys_lib_search_path_spec" | [$GREP ';[c-zC-Z]:/' >/dev/null]; then
-        # It is most probably a Windows format PATH printed by
-        # mingw gcc, but we are running on Cygwin. Gcc prints its search
-        # path with ; separators, and with drive letters. We can handle the
-        # drive letters (cygwin fileutils understands them), so leave them,
-        # especially as we might pass files found there to a mingw objdump,
-        # which wouldn't understand a cygwinified path. Ahh.
-        sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
-      else
-        sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED  -e "s/$PATH_SEPARATOR/ /g"`
-      fi
-      ;;
-    pw32*)
-      # pw32 DLLs use 'pw' prefix rather than 'lib'
-      library_names_spec='`echo ${libname} | sed -e 's/^lib/pw/'``echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext}'
-      ;;
-    esac
-    ;;
-
-  *)
-    library_names_spec='${libname}`echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext} $libname.lib'
-    ;;
-  esac
-  dynamic_linker='Win32 ld.exe'
-  # FIXME: first we should search . and the directory the executable is in
-  shlibpath_var=PATH
-  ;;
-
-darwin* | rhapsody*)
-  dynamic_linker="$host_os dyld"
-  version_type=darwin
-  need_lib_prefix=no
-  need_version=no
-  library_names_spec='${libname}${release}${major}$shared_ext ${libname}$shared_ext'
-  soname_spec='${libname}${release}${major}$shared_ext'
-  shlibpath_overrides_runpath=yes
-  shlibpath_var=DYLD_LIBRARY_PATH
-  shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`'
-m4_if([$1], [],[
-  sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/local/lib"])
-  sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib'
-  ;;
-
-dgux*)
-  version_type=linux
-  need_lib_prefix=no
-  need_version=no
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname$shared_ext'
-  soname_spec='${libname}${release}${shared_ext}$major'
-  shlibpath_var=LD_LIBRARY_PATH
-  ;;
-
-freebsd1*)
-  dynamic_linker=no
-  ;;
-
-freebsd* | dragonfly*)
-  # DragonFly does not have aout.  When/if they implement a new
-  # versioning mechanism, adjust this.
-  if test -x /usr/bin/objformat; then
-    objformat=`/usr/bin/objformat`
-  else
-    case $host_os in
-    freebsd[[123]]*) objformat=aout ;;
-    *) objformat=elf ;;
-    esac
-  fi
-  version_type=freebsd-$objformat
-  case $version_type in
-    freebsd-elf*)
-      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
-      need_version=no
-      need_lib_prefix=no
-      ;;
-    freebsd-*)
-      library_names_spec='${libname}${release}${shared_ext}$versuffix $libname${shared_ext}$versuffix'
-      need_version=yes
-      ;;
-  esac
-  shlibpath_var=LD_LIBRARY_PATH
-  case $host_os in
-  freebsd2*)
-    shlibpath_overrides_runpath=yes
-    ;;
-  freebsd3.[[01]]* | freebsdelf3.[[01]]*)
-    shlibpath_overrides_runpath=yes
-    hardcode_into_libs=yes
-    ;;
-  freebsd3.[[2-9]]* | freebsdelf3.[[2-9]]* | \
-  freebsd4.[[0-5]] | freebsdelf4.[[0-5]] | freebsd4.1.1 | freebsdelf4.1.1)
-    shlibpath_overrides_runpath=no
-    hardcode_into_libs=yes
-    ;;
-  *) # from 4.6 on, and DragonFly
-    shlibpath_overrides_runpath=yes
-    hardcode_into_libs=yes
-    ;;
-  esac
-  ;;
-
-gnu*)
-  version_type=linux
-  need_lib_prefix=no
-  need_version=no
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}'
-  soname_spec='${libname}${release}${shared_ext}$major'
-  shlibpath_var=LD_LIBRARY_PATH
-  hardcode_into_libs=yes
-  ;;
-
-hpux9* | hpux10* | hpux11*)
-  # Give a soname corresponding to the major version so that dld.sl refuses to
-  # link against other versions.
-  version_type=sunos
-  need_lib_prefix=no
-  need_version=no
-  case $host_cpu in
-  ia64*)
-    shrext_cmds='.so'
-    hardcode_into_libs=yes
-    dynamic_linker="$host_os dld.so"
-    shlibpath_var=LD_LIBRARY_PATH
-    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
-    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
-    soname_spec='${libname}${release}${shared_ext}$major'
-    if test "X$HPUX_IA64_MODE" = X32; then
-      sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib"
-    else
-      sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64"
-    fi
-    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
-    ;;
-  hppa*64*)
-    shrext_cmds='.sl'
-    hardcode_into_libs=yes
-    dynamic_linker="$host_os dld.sl"
-    shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH
-    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
-    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
-    soname_spec='${libname}${release}${shared_ext}$major'
-    sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64"
-    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
-    ;;
-  *)
-    shrext_cmds='.sl'
-    dynamic_linker="$host_os dld.sl"
-    shlibpath_var=SHLIB_PATH
-    shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
-    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
-    soname_spec='${libname}${release}${shared_ext}$major'
-    ;;
-  esac
-  # HP-UX runs *really* slowly unless shared libraries are mode 555.
-  postinstall_cmds='chmod 555 $lib'
-  ;;
-
-interix[[3-9]]*)
-  version_type=linux
-  need_lib_prefix=no
-  need_version=no
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
-  soname_spec='${libname}${release}${shared_ext}$major'
-  dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)'
-  shlibpath_var=LD_LIBRARY_PATH
-  shlibpath_overrides_runpath=no
-  hardcode_into_libs=yes
-  ;;
-
-irix5* | irix6* | nonstopux*)
-  case $host_os in
-    nonstopux*) version_type=nonstopux ;;
-    *)
-	if test "$lt_cv_prog_gnu_ld" = yes; then
-		version_type=linux
-	else
-		version_type=irix
-	fi ;;
-  esac
-  need_lib_prefix=no
-  need_version=no
-  soname_spec='${libname}${release}${shared_ext}$major'
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext} $libname${shared_ext}'
-  case $host_os in
-  irix5* | nonstopux*)
-    libsuff= shlibsuff=
-    ;;
-  *)
-    case $LD in # libtool.m4 will add one of these switches to LD
-    *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ")
-      libsuff= shlibsuff= libmagic=32-bit;;
-    *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ")
-      libsuff=32 shlibsuff=N32 libmagic=N32;;
-    *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ")
-      libsuff=64 shlibsuff=64 libmagic=64-bit;;
-    *) libsuff= shlibsuff= libmagic=never-match;;
-    esac
-    ;;
-  esac
-  shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
-  shlibpath_overrides_runpath=no
-  sys_lib_search_path_spec="/usr/lib${libsuff} /lib${libsuff} /usr/local/lib${libsuff}"
-  sys_lib_dlsearch_path_spec="/usr/lib${libsuff} /lib${libsuff}"
-  hardcode_into_libs=yes
-  ;;
-
-# No shared lib support for Linux oldld, aout, or coff.
-linux*oldld* | linux*aout* | linux*coff*)
-  dynamic_linker=no
-  ;;
-
-# This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu)
-  version_type=linux
-  need_lib_prefix=no
-  need_version=no
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
-  soname_spec='${libname}${release}${shared_ext}$major'
-  finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
-  shlibpath_var=LD_LIBRARY_PATH
-  shlibpath_overrides_runpath=no
-  # Some binutils ld are patched to set DT_RUNPATH
-  save_LDFLAGS=$LDFLAGS
-  save_libdir=$libdir
-  eval "libdir=/foo; wl=\"$_LT_TAGVAR(lt_prog_compiler_wl, $1)\"; \
-       LDFLAGS=\"\$LDFLAGS $_LT_TAGVAR(hardcode_libdir_flag_spec, $1)\""
-  AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])],
-    [AS_IF([ ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null],
-       [shlibpath_overrides_runpath=yes])])
-  LDFLAGS=$save_LDFLAGS
-  libdir=$save_libdir
-
-  # This implies no fast_install, which is unacceptable.
-  # Some rework will be needed to allow for fast_install
-  # before this can be enabled.
-  hardcode_into_libs=yes
-
-  # Append ld.so.conf contents to the search path
-  if test -f /etc/ld.so.conf; then
-    lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \[$]2)); skip = 1; } { if (!skip) print \[$]0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[	 ]*hwcap[	 ]/d;s/[:,	]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;/^$/d' | tr '\n' ' '`
-    sys_lib_dlsearch_path_spec="/lib /usr/lib $lt_ld_extra"
-  fi
-
-  # We used to test for /lib/ld.so.1 and disable shared libraries on
-  # powerpc, because MkLinux only supported shared libraries with the
-  # GNU dynamic linker.  Since this was broken with cross compilers,
-  # most powerpc-linux boxes support dynamic linking these days and
-  # people can always --disable-shared, the test was removed, and we
-  # assume the GNU/Linux dynamic linker is in use.
-  dynamic_linker='GNU/Linux ld.so'
-  ;;
-
-netbsdelf*-gnu)
-  version_type=linux
-  need_lib_prefix=no
-  need_version=no
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
-  soname_spec='${libname}${release}${shared_ext}$major'
-  shlibpath_var=LD_LIBRARY_PATH
-  shlibpath_overrides_runpath=no
-  hardcode_into_libs=yes
-  dynamic_linker='NetBSD ld.elf_so'
-  ;;
-
-netbsd*)
-  version_type=sunos
-  need_lib_prefix=no
-  need_version=no
-  if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
-    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
-    finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
-    dynamic_linker='NetBSD (a.out) ld.so'
-  else
-    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
-    soname_spec='${libname}${release}${shared_ext}$major'
-    dynamic_linker='NetBSD ld.elf_so'
-  fi
-  shlibpath_var=LD_LIBRARY_PATH
-  shlibpath_overrides_runpath=yes
-  hardcode_into_libs=yes
-  ;;
-
-newsos6)
-  version_type=linux
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
-  shlibpath_var=LD_LIBRARY_PATH
-  shlibpath_overrides_runpath=yes
-  ;;
-
-*nto* | *qnx*)
-  version_type=qnx
-  need_lib_prefix=no
-  need_version=no
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
-  soname_spec='${libname}${release}${shared_ext}$major'
-  shlibpath_var=LD_LIBRARY_PATH
-  shlibpath_overrides_runpath=no
-  hardcode_into_libs=yes
-  dynamic_linker='ldqnx.so'
-  ;;
-
-openbsd*)
-  version_type=sunos
-  sys_lib_dlsearch_path_spec="/usr/lib"
-  need_lib_prefix=no
-  # Some older versions of OpenBSD (3.3 at least) *do* need versioned libs.
-  case $host_os in
-    openbsd3.3 | openbsd3.3.*)	need_version=yes ;;
-    *)				need_version=no  ;;
-  esac
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
-  finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
-  shlibpath_var=LD_LIBRARY_PATH
-  if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
-    case $host_os in
-      openbsd2.[[89]] | openbsd2.[[89]].*)
-	shlibpath_overrides_runpath=no
-	;;
-      *)
-	shlibpath_overrides_runpath=yes
-	;;
-      esac
-  else
-    shlibpath_overrides_runpath=yes
-  fi
-  ;;
-
-os2*)
-  libname_spec='$name'
-  shrext_cmds=".dll"
-  need_lib_prefix=no
-  library_names_spec='$libname${shared_ext} $libname.a'
-  dynamic_linker='OS/2 ld.exe'
-  shlibpath_var=LIBPATH
-  ;;
-
-osf3* | osf4* | osf5*)
-  version_type=osf
-  need_lib_prefix=no
-  need_version=no
-  soname_spec='${libname}${release}${shared_ext}$major'
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
-  shlibpath_var=LD_LIBRARY_PATH
-  sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
-  sys_lib_dlsearch_path_spec="$sys_lib_search_path_spec"
-  ;;
-
-rdos*)
-  dynamic_linker=no
-  ;;
-
-solaris*)
-  version_type=linux
-  need_lib_prefix=no
-  need_version=no
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
-  soname_spec='${libname}${release}${shared_ext}$major'
-  shlibpath_var=LD_LIBRARY_PATH
-  shlibpath_overrides_runpath=yes
-  hardcode_into_libs=yes
-  # ldd complains unless libraries are executable
-  postinstall_cmds='chmod +x $lib'
-  ;;
-
-sunos4*)
-  version_type=sunos
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
-  finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
-  shlibpath_var=LD_LIBRARY_PATH
-  shlibpath_overrides_runpath=yes
-  if test "$with_gnu_ld" = yes; then
-    need_lib_prefix=no
-  fi
-  need_version=yes
-  ;;
-
-sysv4 | sysv4.3*)
-  version_type=linux
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
-  soname_spec='${libname}${release}${shared_ext}$major'
-  shlibpath_var=LD_LIBRARY_PATH
-  case $host_vendor in
-    sni)
-      shlibpath_overrides_runpath=no
-      need_lib_prefix=no
-      runpath_var=LD_RUN_PATH
-      ;;
-    siemens)
-      need_lib_prefix=no
-      ;;
-    motorola)
-      need_lib_prefix=no
-      need_version=no
-      shlibpath_overrides_runpath=no
-      sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib'
-      ;;
-  esac
-  ;;
-
-sysv4*MP*)
-  if test -d /usr/nec ;then
-    version_type=linux
-    library_names_spec='$libname${shared_ext}.$versuffix $libname${shared_ext}.$major $libname${shared_ext}'
-    soname_spec='$libname${shared_ext}.$major'
-    shlibpath_var=LD_LIBRARY_PATH
-  fi
-  ;;
-
-sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
-  version_type=freebsd-elf
-  need_lib_prefix=no
-  need_version=no
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
-  soname_spec='${libname}${release}${shared_ext}$major'
-  shlibpath_var=LD_LIBRARY_PATH
-  shlibpath_overrides_runpath=yes
-  hardcode_into_libs=yes
-  if test "$with_gnu_ld" = yes; then
-    sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib'
-  else
-    sys_lib_search_path_spec='/usr/ccs/lib /usr/lib'
-    case $host_os in
-      sco3.2v5*)
-        sys_lib_search_path_spec="$sys_lib_search_path_spec /lib"
-	;;
-    esac
-  fi
-  sys_lib_dlsearch_path_spec='/usr/lib'
-  ;;
-
-tpf*)
-  # TPF is a cross-target only.  Preferred cross-host = GNU/Linux.
-  version_type=linux
-  need_lib_prefix=no
-  need_version=no
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
-  shlibpath_var=LD_LIBRARY_PATH
-  shlibpath_overrides_runpath=no
-  hardcode_into_libs=yes
-  ;;
-
-uts4*)
-  version_type=linux
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
-  soname_spec='${libname}${release}${shared_ext}$major'
-  shlibpath_var=LD_LIBRARY_PATH
-  ;;
-
-*)
-  dynamic_linker=no
-  ;;
-esac
-AC_MSG_RESULT([$dynamic_linker])
-test "$dynamic_linker" = no && can_build_shared=no
-
-variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
-if test "$GCC" = yes; then
-  variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
-fi
-
-if test "${lt_cv_sys_lib_search_path_spec+set}" = set; then
-  sys_lib_search_path_spec="$lt_cv_sys_lib_search_path_spec"
-fi
-if test "${lt_cv_sys_lib_dlsearch_path_spec+set}" = set; then
-  sys_lib_dlsearch_path_spec="$lt_cv_sys_lib_dlsearch_path_spec"
-fi
-
-_LT_DECL([], [variables_saved_for_relink], [1],
-    [Variables whose values should be saved in libtool wrapper scripts and
-    restored at link time])
-_LT_DECL([], [need_lib_prefix], [0],
-    [Do we need the "lib" prefix for modules?])
-_LT_DECL([], [need_version], [0], [Do we need a version for libraries?])
-_LT_DECL([], [version_type], [0], [Library versioning type])
-_LT_DECL([], [runpath_var], [0],  [Shared library runtime path variable])
-_LT_DECL([], [shlibpath_var], [0],[Shared library path variable])
-_LT_DECL([], [shlibpath_overrides_runpath], [0],
-    [Is shlibpath searched before the hard-coded library search path?])
-_LT_DECL([], [libname_spec], [1], [Format of library name prefix])
-_LT_DECL([], [library_names_spec], [1],
-    [[List of archive names.  First name is the real one, the rest are links.
-    The last name is the one that the linker finds with -lNAME]])
-_LT_DECL([], [soname_spec], [1],
-    [[The coded name of the library, if different from the real name]])
-_LT_DECL([], [postinstall_cmds], [2],
-    [Command to use after installation of a shared archive])
-_LT_DECL([], [postuninstall_cmds], [2],
-    [Command to use after uninstallation of a shared archive])
-_LT_DECL([], [finish_cmds], [2],
-    [Commands used to finish a libtool library installation in a directory])
-_LT_DECL([], [finish_eval], [1],
-    [[As "finish_cmds", except a single script fragment to be evaled but
-    not shown]])
-_LT_DECL([], [hardcode_into_libs], [0],
-    [Whether we should hardcode library paths into libraries])
-_LT_DECL([], [sys_lib_search_path_spec], [2],
-    [Compile-time system search path for libraries])
-_LT_DECL([], [sys_lib_dlsearch_path_spec], [2],
-    [Run-time system search path for libraries])
-])# _LT_SYS_DYNAMIC_LINKER
-
-
-# _LT_PATH_TOOL_PREFIX(TOOL)
-# --------------------------
-# find a file program which can recognize shared library
-AC_DEFUN([_LT_PATH_TOOL_PREFIX],
-[m4_require([_LT_DECL_EGREP])dnl
-AC_MSG_CHECKING([for $1])
-AC_CACHE_VAL(lt_cv_path_MAGIC_CMD,
-[case $MAGIC_CMD in
-[[\\/*] |  ?:[\\/]*])
-  lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path.
-  ;;
-*)
-  lt_save_MAGIC_CMD="$MAGIC_CMD"
-  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
-dnl $ac_dummy forces splitting on constant user-supplied paths.
-dnl POSIX.2 word splitting is done only on the output of word expansions,
-dnl not every word.  This closes a longstanding sh security hole.
-  ac_dummy="m4_if([$2], , $PATH, [$2])"
-  for ac_dir in $ac_dummy; do
-    IFS="$lt_save_ifs"
-    test -z "$ac_dir" && ac_dir=.
-    if test -f $ac_dir/$1; then
-      lt_cv_path_MAGIC_CMD="$ac_dir/$1"
-      if test -n "$file_magic_test_file"; then
-	case $deplibs_check_method in
-	"file_magic "*)
-	  file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"`
-	  MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
-	  if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
-	    $EGREP "$file_magic_regex" > /dev/null; then
-	    :
-	  else
-	    cat <<_LT_EOF 1>&2
-
-*** Warning: the command libtool uses to detect shared libraries,
-*** $file_magic_cmd, produces output that libtool cannot recognize.
-*** The result is that libtool may fail to recognize shared libraries
-*** as such.  This will affect the creation of libtool libraries that
-*** depend on shared libraries, but programs linked with such libtool
-*** libraries will work regardless of this problem.  Nevertheless, you
-*** may want to report the problem to your system manager and/or to
-*** bug-libtool@gnu.org
-
-_LT_EOF
-	  fi ;;
-	esac
-      fi
-      break
-    fi
-  done
-  IFS="$lt_save_ifs"
-  MAGIC_CMD="$lt_save_MAGIC_CMD"
-  ;;
-esac])
-MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
-if test -n "$MAGIC_CMD"; then
-  AC_MSG_RESULT($MAGIC_CMD)
-else
-  AC_MSG_RESULT(no)
-fi
-_LT_DECL([], [MAGIC_CMD], [0],
-	 [Used to examine libraries when file_magic_cmd begins with "file"])dnl
-])# _LT_PATH_TOOL_PREFIX
-
-# Old name:
-AU_ALIAS([AC_PATH_TOOL_PREFIX], [_LT_PATH_TOOL_PREFIX])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_PATH_TOOL_PREFIX], [])
-
-
-# _LT_PATH_MAGIC
-# --------------
-# find a file program which can recognize a shared library
-m4_defun([_LT_PATH_MAGIC],
-[_LT_PATH_TOOL_PREFIX(${ac_tool_prefix}file, /usr/bin$PATH_SEPARATOR$PATH)
-if test -z "$lt_cv_path_MAGIC_CMD"; then
-  if test -n "$ac_tool_prefix"; then
-    _LT_PATH_TOOL_PREFIX(file, /usr/bin$PATH_SEPARATOR$PATH)
-  else
-    MAGIC_CMD=:
-  fi
-fi
-])# _LT_PATH_MAGIC
-
-
-# LT_PATH_LD
-# ----------
-# find the pathname to the GNU or non-GNU linker
-AC_DEFUN([LT_PATH_LD],
-[AC_REQUIRE([AC_PROG_CC])dnl
-AC_REQUIRE([AC_CANONICAL_HOST])dnl
-AC_REQUIRE([AC_CANONICAL_BUILD])dnl
-m4_require([_LT_DECL_SED])dnl
-m4_require([_LT_DECL_EGREP])dnl
-
-AC_ARG_WITH([gnu-ld],
-    [AS_HELP_STRING([--with-gnu-ld],
-	[assume the C compiler uses GNU ld @<:@default=no@:>@])],
-    [test "$withval" = no || with_gnu_ld=yes],
-    [with_gnu_ld=no])dnl
-
-ac_prog=ld
-if test "$GCC" = yes; then
-  # Check if gcc -print-prog-name=ld gives a path.
-  AC_MSG_CHECKING([for ld used by $CC])
-  case $host in
-  *-*-mingw*)
-    # gcc leaves a trailing carriage return which upsets mingw
-    ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
-  *)
-    ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
-  esac
-  case $ac_prog in
-    # Accept absolute paths.
-    [[\\/]]* | ?:[[\\/]]*)
-      re_direlt='/[[^/]][[^/]]*/\.\./'
-      # Canonicalize the pathname of ld
-      ac_prog=`$ECHO "$ac_prog"| $SED 's%\\\\%/%g'`
-      while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do
-	ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"`
-      done
-      test -z "$LD" && LD="$ac_prog"
-      ;;
-  "")
-    # If it fails, then pretend we aren't using GCC.
-    ac_prog=ld
-    ;;
-  *)
-    # If it is relative, then search for the first ld in PATH.
-    with_gnu_ld=unknown
-    ;;
-  esac
-elif test "$with_gnu_ld" = yes; then
-  AC_MSG_CHECKING([for GNU ld])
-else
-  AC_MSG_CHECKING([for non-GNU ld])
-fi
-AC_CACHE_VAL(lt_cv_path_LD,
-[if test -z "$LD"; then
-  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
-  for ac_dir in $PATH; do
-    IFS="$lt_save_ifs"
-    test -z "$ac_dir" && ac_dir=.
-    if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
-      lt_cv_path_LD="$ac_dir/$ac_prog"
-      # Check to see if the program is GNU ld.  I'd rather use --version,
-      # but apparently some variants of GNU ld only accept -v.
-      # Break only if it was the GNU/non-GNU ld that we prefer.
-      case `"$lt_cv_path_LD" -v 2>&1 </dev/null` in
-      *GNU* | *'with BFD'*)
-	test "$with_gnu_ld" != no && break
-	;;
-      *)
-	test "$with_gnu_ld" != yes && break
-	;;
-      esac
-    fi
-  done
-  IFS="$lt_save_ifs"
-else
-  lt_cv_path_LD="$LD" # Let the user override the test with a path.
-fi])
-LD="$lt_cv_path_LD"
-if test -n "$LD"; then
-  AC_MSG_RESULT($LD)
-else
-  AC_MSG_RESULT(no)
-fi
-test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
-_LT_PATH_LD_GNU
-AC_SUBST([LD])
-
-_LT_TAGDECL([], [LD], [1], [The linker used to build libraries])
-])# LT_PATH_LD
-
-# Old names:
-AU_ALIAS([AM_PROG_LD], [LT_PATH_LD])
-AU_ALIAS([AC_PROG_LD], [LT_PATH_LD])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AM_PROG_LD], [])
-dnl AC_DEFUN([AC_PROG_LD], [])
-
-
-# _LT_PATH_LD_GNU
-#- --------------
-m4_defun([_LT_PATH_LD_GNU],
-[AC_CACHE_CHECK([if the linker ($LD) is GNU ld], lt_cv_prog_gnu_ld,
-[# I'd rather use --version here, but apparently some GNU lds only accept -v.
-case `$LD -v 2>&1 </dev/null` in
-*GNU* | *'with BFD'*)
-  lt_cv_prog_gnu_ld=yes
-  ;;
-*)
-  lt_cv_prog_gnu_ld=no
-  ;;
-esac])
-with_gnu_ld=$lt_cv_prog_gnu_ld
-])# _LT_PATH_LD_GNU
-
-
-# _LT_CMD_RELOAD
-# --------------
-# find reload flag for linker
-#   -- PORTME Some linkers may need a different reload flag.
-m4_defun([_LT_CMD_RELOAD],
-[AC_CACHE_CHECK([for $LD option to reload object files],
-  lt_cv_ld_reload_flag,
-  [lt_cv_ld_reload_flag='-r'])
-reload_flag=$lt_cv_ld_reload_flag
-case $reload_flag in
-"" | " "*) ;;
-*) reload_flag=" $reload_flag" ;;
-esac
-reload_cmds='$LD$reload_flag -o $output$reload_objs'
-case $host_os in
-  darwin*)
-    if test "$GCC" = yes; then
-      reload_cmds='$LTCC $LTCFLAGS -nostdlib ${wl}-r -o $output$reload_objs'
-    else
-      reload_cmds='$LD$reload_flag -o $output$reload_objs'
-    fi
-    ;;
-esac
-_LT_DECL([], [reload_flag], [1], [How to create reloadable object files])dnl
-_LT_DECL([], [reload_cmds], [2])dnl
-])# _LT_CMD_RELOAD
-
-
-# _LT_CHECK_MAGIC_METHOD
-# ----------------------
-# how to check for library dependencies
-#  -- PORTME fill in with the dynamic library characteristics
-m4_defun([_LT_CHECK_MAGIC_METHOD],
-[m4_require([_LT_DECL_EGREP])
-m4_require([_LT_DECL_OBJDUMP])
-AC_CACHE_CHECK([how to recognize dependent libraries],
-lt_cv_deplibs_check_method,
-[lt_cv_file_magic_cmd='$MAGIC_CMD'
-lt_cv_file_magic_test_file=
-lt_cv_deplibs_check_method='unknown'
-# Need to set the preceding variable on all platforms that support
-# interlibrary dependencies.
-# 'none' -- dependencies not supported.
-# `unknown' -- same as none, but documents that we really don't know.
-# 'pass_all' -- all dependencies passed with no checks.
-# 'test_compile' -- check by making test program.
-# 'file_magic [[regex]]' -- check by looking for files in library path
-# which responds to the $file_magic_cmd with a given extended regex.
-# If you have `file' or equivalent on your system and you're not sure
-# whether `pass_all' will *always* work, you probably want this one.
-
-case $host_os in
-aix[[4-9]]*)
-  lt_cv_deplibs_check_method=pass_all
-  ;;
-
-beos*)
-  lt_cv_deplibs_check_method=pass_all
-  ;;
-
-bsdi[[45]]*)
-  lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (shared object|dynamic lib)'
-  lt_cv_file_magic_cmd='/usr/bin/file -L'
-  lt_cv_file_magic_test_file=/shlib/libc.so
-  ;;
-
-cygwin*)
-  # func_win32_libid is a shell function defined in ltmain.sh
-  lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
-  lt_cv_file_magic_cmd='func_win32_libid'
-  ;;
-
-mingw* | pw32*)
-  # Base MSYS/MinGW do not provide the 'file' command needed by
-  # func_win32_libid shell function, so use a weaker test based on 'objdump',
-  # unless we find 'file', for example because we are cross-compiling.
-  if ( file / ) >/dev/null 2>&1; then
-    lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
-    lt_cv_file_magic_cmd='func_win32_libid'
-  else
-    lt_cv_deplibs_check_method='file_magic file format pei*-i386(.*architecture: i386)?'
-    lt_cv_file_magic_cmd='$OBJDUMP -f'
-  fi
-  ;;
-
-cegcc)
-  # use the weaker test based on 'objdump'. See mingw*.
-  lt_cv_deplibs_check_method='file_magic file format pe-arm-.*little(.*architecture: arm)?'
-  lt_cv_file_magic_cmd='$OBJDUMP -f'
-  ;;
-
-darwin* | rhapsody*)
-  lt_cv_deplibs_check_method=pass_all
-  ;;
-
-freebsd* | dragonfly*)
-  if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
-    case $host_cpu in
-    i*86 )
-      # Not sure whether the presence of OpenBSD here was a mistake.
-      # Let's accept both of them until this is cleared up.
-      lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD|DragonFly)/i[[3-9]]86 (compact )?demand paged shared library'
-      lt_cv_file_magic_cmd=/usr/bin/file
-      lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*`
-      ;;
-    esac
-  else
-    lt_cv_deplibs_check_method=pass_all
-  fi
-  ;;
-
-gnu*)
-  lt_cv_deplibs_check_method=pass_all
-  ;;
-
-hpux10.20* | hpux11*)
-  lt_cv_file_magic_cmd=/usr/bin/file
-  case $host_cpu in
-  ia64*)
-    lt_cv_deplibs_check_method='file_magic (s[[0-9]][[0-9]][[0-9]]|ELF-[[0-9]][[0-9]]) shared object file - IA64'
-    lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so
-    ;;
-  hppa*64*)
-    [lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF-[0-9][0-9]) shared object file - PA-RISC [0-9].[0-9]']
-    lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl
-    ;;
-  *)
-    lt_cv_deplibs_check_method='file_magic (s[[0-9]][[0-9]][[0-9]]|PA-RISC[[0-9]].[[0-9]]) shared library'
-    lt_cv_file_magic_test_file=/usr/lib/libc.sl
-    ;;
-  esac
-  ;;
-
-interix[[3-9]]*)
-  # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here
-  lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so|\.a)$'
-  ;;
-
-irix5* | irix6* | nonstopux*)
-  case $LD in
-  *-32|*"-32 ") libmagic=32-bit;;
-  *-n32|*"-n32 ") libmagic=N32;;
-  *-64|*"-64 ") libmagic=64-bit;;
-  *) libmagic=never-match;;
-  esac
-  lt_cv_deplibs_check_method=pass_all
-  ;;
-
-# This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu)
-  lt_cv_deplibs_check_method=pass_all
-  ;;
-
-netbsd* | netbsdelf*-gnu)
-  if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
-    lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|_pic\.a)$'
-  else
-    lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so|_pic\.a)$'
-  fi
-  ;;
-
-newos6*)
-  lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (executable|dynamic lib)'
-  lt_cv_file_magic_cmd=/usr/bin/file
-  lt_cv_file_magic_test_file=/usr/lib/libnls.so
-  ;;
-
-*nto* | *qnx*)
-  lt_cv_deplibs_check_method=pass_all
-  ;;
-
-openbsd*)
-  if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
-    lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|\.so|_pic\.a)$'
-  else
-    lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|_pic\.a)$'
-  fi
-  ;;
-
-osf3* | osf4* | osf5*)
-  lt_cv_deplibs_check_method=pass_all
-  ;;
-
-rdos*)
-  lt_cv_deplibs_check_method=pass_all
-  ;;
-
-solaris*)
-  lt_cv_deplibs_check_method=pass_all
-  ;;
-
-sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
-  lt_cv_deplibs_check_method=pass_all
-  ;;
-
-sysv4 | sysv4.3*)
-  case $host_vendor in
-  motorola)
-    lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (shared object|dynamic lib) M[[0-9]][[0-9]]* Version [[0-9]]'
-    lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*`
-    ;;
-  ncr)
-    lt_cv_deplibs_check_method=pass_all
-    ;;
-  sequent)
-    lt_cv_file_magic_cmd='/bin/file'
-    lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB (shared object|dynamic lib )'
-    ;;
-  sni)
-    lt_cv_file_magic_cmd='/bin/file'
-    lt_cv_deplibs_check_method="file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB dynamic lib"
-    lt_cv_file_magic_test_file=/lib/libc.so
-    ;;
-  siemens)
-    lt_cv_deplibs_check_method=pass_all
-    ;;
-  pc)
-    lt_cv_deplibs_check_method=pass_all
-    ;;
-  esac
-  ;;
-
-tpf*)
-  lt_cv_deplibs_check_method=pass_all
-  ;;
-esac
-])
-file_magic_cmd=$lt_cv_file_magic_cmd
-deplibs_check_method=$lt_cv_deplibs_check_method
-test -z "$deplibs_check_method" && deplibs_check_method=unknown
-
-_LT_DECL([], [deplibs_check_method], [1],
-    [Method to check whether dependent libraries are shared objects])
-_LT_DECL([], [file_magic_cmd], [1],
-    [Command to use when deplibs_check_method == "file_magic"])
-])# _LT_CHECK_MAGIC_METHOD
-
-
-# LT_PATH_NM
-# ----------
-# find the pathname to a BSD- or MS-compatible name lister
-AC_DEFUN([LT_PATH_NM],
-[AC_REQUIRE([AC_PROG_CC])dnl
-AC_CACHE_CHECK([for BSD- or MS-compatible name lister (nm)], lt_cv_path_NM,
-[if test -n "$NM"; then
-  # Let the user override the test.
-  lt_cv_path_NM="$NM"
-else
-  lt_nm_to_check="${ac_tool_prefix}nm"
-  if test -n "$ac_tool_prefix" && test "$build" = "$host"; then
-    lt_nm_to_check="$lt_nm_to_check nm"
-  fi
-  for lt_tmp_nm in $lt_nm_to_check; do
-    lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
-    for ac_dir in $PATH /usr/ccs/bin/elf /usr/ccs/bin /usr/ucb /bin; do
-      IFS="$lt_save_ifs"
-      test -z "$ac_dir" && ac_dir=.
-      tmp_nm="$ac_dir/$lt_tmp_nm"
-      if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext" ; then
-	# Check to see if the nm accepts a BSD-compat flag.
-	# Adding the `sed 1q' prevents false positives on HP-UX, which says:
-	#   nm: unknown option "B" ignored
-	# Tru64's nm complains that /dev/null is an invalid object file
-	case `"$tmp_nm" -B /dev/null 2>&1 | sed '1q'` in
-	*/dev/null* | *'Invalid file or object type'*)
-	  lt_cv_path_NM="$tmp_nm -B"
-	  break
-	  ;;
-	*)
-	  case `"$tmp_nm" -p /dev/null 2>&1 | sed '1q'` in
-	  */dev/null*)
-	    lt_cv_path_NM="$tmp_nm -p"
-	    break
-	    ;;
-	  *)
-	    lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but
-	    continue # so that we can try to find one that supports BSD flags
-	    ;;
-	  esac
-	  ;;
-	esac
-      fi
-    done
-    IFS="$lt_save_ifs"
-  done
-  : ${lt_cv_path_NM=no}
-fi])
-if test "$lt_cv_path_NM" != "no"; then
-  NM="$lt_cv_path_NM"
-else
-  # Didn't find any BSD compatible name lister, look for dumpbin.
-  AC_CHECK_TOOLS(DUMPBIN, ["dumpbin -symbols" "link -dump -symbols"], :)
-  AC_SUBST([DUMPBIN])
-  if test "$DUMPBIN" != ":"; then
-    NM="$DUMPBIN"
-  fi
-fi
-test -z "$NM" && NM=nm
-AC_SUBST([NM])
-_LT_DECL([], [NM], [1], [A BSD- or MS-compatible name lister])dnl
-
-AC_CACHE_CHECK([the name lister ($NM) interface], [lt_cv_nm_interface],
-  [lt_cv_nm_interface="BSD nm"
-  echo "int some_variable = 0;" > conftest.$ac_ext
-  (eval echo "\"\$as_me:__oline__: $ac_compile\"" >&AS_MESSAGE_LOG_FD)
-  (eval "$ac_compile" 2>conftest.err)
-  cat conftest.err >&AS_MESSAGE_LOG_FD
-  (eval echo "\"\$as_me:__oline__: $NM \\\"conftest.$ac_objext\\\"\"" >&AS_MESSAGE_LOG_FD)
-  (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out)
-  cat conftest.err >&AS_MESSAGE_LOG_FD
-  (eval echo "\"\$as_me:__oline__: output\"" >&AS_MESSAGE_LOG_FD)
-  cat conftest.out >&AS_MESSAGE_LOG_FD
-  if $GREP 'External.*some_variable' conftest.out > /dev/null; then
-    lt_cv_nm_interface="MS dumpbin"
-  fi
-  rm -f conftest*])
-])# LT_PATH_NM
-
-# Old names:
-AU_ALIAS([AM_PROG_NM], [LT_PATH_NM])
-AU_ALIAS([AC_PROG_NM], [LT_PATH_NM])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AM_PROG_NM], [])
-dnl AC_DEFUN([AC_PROG_NM], [])
-
-
-# LT_LIB_M
-# --------
-# check for math library
-AC_DEFUN([LT_LIB_M],
-[AC_REQUIRE([AC_CANONICAL_HOST])dnl
-LIBM=
-case $host in
-*-*-beos* | *-*-cygwin* | *-*-pw32* | *-*-darwin*)
-  # These system don't have libm, or don't need it
-  ;;
-*-ncr-sysv4.3*)
-  AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM="-lmw")
-  AC_CHECK_LIB(m, cos, LIBM="$LIBM -lm")
-  ;;
-*)
-  AC_CHECK_LIB(m, cos, LIBM="-lm")
-  ;;
-esac
-AC_SUBST([LIBM])
-])# LT_LIB_M
-
-# Old name:
-AU_ALIAS([AC_CHECK_LIBM], [LT_LIB_M])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_CHECK_LIBM], [])
-
-
-# _LT_COMPILER_NO_RTTI([TAGNAME])
-# -------------------------------
-m4_defun([_LT_COMPILER_NO_RTTI],
-[m4_require([_LT_TAG_COMPILER])dnl
-
-_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=
-
-if test "$GCC" = yes; then
-  _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin'
-
-  _LT_COMPILER_OPTION([if $compiler supports -fno-rtti -fno-exceptions],
-    lt_cv_prog_compiler_rtti_exceptions,
-    [-fno-rtti -fno-exceptions], [],
-    [_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)="$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1) -fno-rtti -fno-exceptions"])
-fi
-_LT_TAGDECL([no_builtin_flag], [lt_prog_compiler_no_builtin_flag], [1],
-	[Compiler flag to turn off builtin functions])
-])# _LT_COMPILER_NO_RTTI
-
-
-# _LT_CMD_GLOBAL_SYMBOLS
-# ----------------------
-m4_defun([_LT_CMD_GLOBAL_SYMBOLS],
-[AC_REQUIRE([AC_CANONICAL_HOST])dnl
-AC_REQUIRE([AC_PROG_CC])dnl
-AC_REQUIRE([LT_PATH_NM])dnl
-AC_REQUIRE([LT_PATH_LD])dnl
-m4_require([_LT_DECL_SED])dnl
-m4_require([_LT_DECL_EGREP])dnl
-m4_require([_LT_TAG_COMPILER])dnl
-
-# Check for command to grab the raw symbol name followed by C symbol from nm.
-AC_MSG_CHECKING([command to parse $NM output from $compiler object])
-AC_CACHE_VAL([lt_cv_sys_global_symbol_pipe],
-[
-# These are sane defaults that work on at least a few old systems.
-# [They come from Ultrix.  What could be older than Ultrix?!! ;)]
-
-# Character class describing NM global symbol codes.
-symcode='[[BCDEGRST]]'
-
-# Regexp to match symbols that can be accessed directly from C.
-sympat='\([[_A-Za-z]][[_A-Za-z0-9]]*\)'
-
-# Define system-specific variables.
-case $host_os in
-aix*)
-  symcode='[[BCDT]]'
-  ;;
-cygwin* | mingw* | pw32* | cegcc*)
-  symcode='[[ABCDGISTW]]'
-  ;;
-hpux*)
-  if test "$host_cpu" = ia64; then
-    symcode='[[ABCDEGRST]]'
-  fi
-  ;;
-irix* | nonstopux*)
-  symcode='[[BCDEGRST]]'
-  ;;
-osf*)
-  symcode='[[BCDEGQRST]]'
-  ;;
-solaris*)
-  symcode='[[BDRT]]'
-  ;;
-sco3.2v5*)
-  symcode='[[DT]]'
-  ;;
-sysv4.2uw2*)
-  symcode='[[DT]]'
-  ;;
-sysv5* | sco5v6* | unixware* | OpenUNIX*)
-  symcode='[[ABDT]]'
-  ;;
-sysv4)
-  symcode='[[DFNSTU]]'
-  ;;
-esac
-
-# If we're using GNU nm, then use its standard symbol codes.
-case `$NM -V 2>&1` in
-*GNU* | *'with BFD'*)
-  symcode='[[ABCDGIRSTW]]' ;;
-esac
-
-# Transform an extracted symbol line into a proper C declaration.
-# Some systems (esp. on ia64) link data and code symbols differently,
-# so use this general approach.
-lt_cv_sys_global_symbol_to_cdecl="sed -n -e 's/^T .* \(.*\)$/extern int \1();/p' -e 's/^$symcode* .* \(.*\)$/extern char \1;/p'"
-
-# Transform an extracted symbol line into symbol name and symbol address
-lt_cv_sys_global_symbol_to_c_name_address="sed -n -e 's/^: \([[^ ]]*\) $/  {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([[^ ]]*\) \([[^ ]]*\)$/  {\"\2\", (void *) \&\2},/p'"
-lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n -e 's/^: \([[^ ]]*\) $/  {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([[^ ]]*\) \(lib[[^ ]]*\)$/  {\"\2\", (void *) \&\2},/p' -e 's/^$symcode* \([[^ ]]*\) \([[^ ]]*\)$/  {\"lib\2\", (void *) \&\2},/p'"
-
-# Handle CRLF in mingw tool chain
-opt_cr=
-case $build_os in
-mingw*)
-  opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp
-  ;;
-esac
-
-# Try without a prefix underscore, then with it.
-for ac_symprfx in "" "_"; do
-
-  # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol.
-  symxfrm="\\1 $ac_symprfx\\2 \\2"
-
-  # Write the raw and C identifiers.
-  if test "$lt_cv_nm_interface" = "MS dumpbin"; then
-    # Fake it for dumpbin and say T for any non-static function
-    # and D for any global variable.
-    # Also find C++ and __fastcall symbols from MSVC++,
-    # which start with @ or ?.
-    lt_cv_sys_global_symbol_pipe="$AWK ['"\
-"     {last_section=section; section=\$ 3};"\
-"     /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\
-"     \$ 0!~/External *\|/{next};"\
-"     / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\
-"     {if(hide[section]) next};"\
-"     {f=0}; \$ 0~/\(\).*\|/{f=1}; {printf f ? \"T \" : \"D \"};"\
-"     {split(\$ 0, a, /\||\r/); split(a[2], s)};"\
-"     s[1]~/^[@?]/{print s[1], s[1]; next};"\
-"     s[1]~prfx {split(s[1],t,\"@\"); print t[1], substr(t[1],length(prfx))}"\
-"     ' prfx=^$ac_symprfx]"
-  else
-    lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[[	 ]]\($symcode$symcode*\)[[	 ]][[	 ]]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'"
-  fi
-
-  # Check to see that the pipe works correctly.
-  pipe_works=no
-
-  rm -f conftest*
-  cat > conftest.$ac_ext <<_LT_EOF
-#ifdef __cplusplus
-extern "C" {
-#endif
-char nm_test_var;
-void nm_test_func(void);
-void nm_test_func(void){}
-#ifdef __cplusplus
-}
-#endif
-int main(){nm_test_var='a';nm_test_func();return(0);}
-_LT_EOF
-
-  if AC_TRY_EVAL(ac_compile); then
-    # Now try to grab the symbols.
-    nlist=conftest.nm
-    if AC_TRY_EVAL(NM conftest.$ac_objext \| $lt_cv_sys_global_symbol_pipe \> $nlist) && test -s "$nlist"; then
-      # Try sorting and uniquifying the output.
-      if sort "$nlist" | uniq > "$nlist"T; then
-	mv -f "$nlist"T "$nlist"
-      else
-	rm -f "$nlist"T
-      fi
-
-      # Make sure that we snagged all the symbols we need.
-      if $GREP ' nm_test_var$' "$nlist" >/dev/null; then
-	if $GREP ' nm_test_func$' "$nlist" >/dev/null; then
-	  cat <<_LT_EOF > conftest.$ac_ext
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-_LT_EOF
-	  # Now generate the symbol file.
-	  eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext'
-
-	  cat <<_LT_EOF >> conftest.$ac_ext
-
-/* The mapping between symbol names and symbols.  */
-const struct {
-  const char *name;
-  void       *address;
-}
-lt__PROGRAM__LTX_preloaded_symbols[[]] =
-{
-  { "@PROGRAM@", (void *) 0 },
-_LT_EOF
-	  $SED "s/^$symcode$symcode* \(.*\) \(.*\)$/  {\"\2\", (void *) \&\2},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext
-	  cat <<\_LT_EOF >> conftest.$ac_ext
-  {0, (void *) 0}
-};
-
-/* This works around a problem in FreeBSD linker */
-#ifdef FREEBSD_WORKAROUND
-static const void *lt_preloaded_setup() {
-  return lt__PROGRAM__LTX_preloaded_symbols;
-}
-#endif
-
-#ifdef __cplusplus
-}
-#endif
-_LT_EOF
-	  # Now try linking the two files.
-	  mv conftest.$ac_objext conftstm.$ac_objext
-	  lt_save_LIBS="$LIBS"
-	  lt_save_CFLAGS="$CFLAGS"
-	  LIBS="conftstm.$ac_objext"
-	  CFLAGS="$CFLAGS$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)"
-	  if AC_TRY_EVAL(ac_link) && test -s conftest${ac_exeext}; then
-	    pipe_works=yes
-	  fi
-	  LIBS="$lt_save_LIBS"
-	  CFLAGS="$lt_save_CFLAGS"
-	else
-	  echo "cannot find nm_test_func in $nlist" >&AS_MESSAGE_LOG_FD
-	fi
-      else
-	echo "cannot find nm_test_var in $nlist" >&AS_MESSAGE_LOG_FD
-      fi
-    else
-      echo "cannot run $lt_cv_sys_global_symbol_pipe" >&AS_MESSAGE_LOG_FD
-    fi
-  else
-    echo "$progname: failed program was:" >&AS_MESSAGE_LOG_FD
-    cat conftest.$ac_ext >&5
-  fi
-  rm -rf conftest* conftst*
-
-  # Do not use the global_symbol_pipe unless it works.
-  if test "$pipe_works" = yes; then
-    break
-  else
-    lt_cv_sys_global_symbol_pipe=
-  fi
-done
-])
-if test -z "$lt_cv_sys_global_symbol_pipe"; then
-  lt_cv_sys_global_symbol_to_cdecl=
-fi
-if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then
-  AC_MSG_RESULT(failed)
-else
-  AC_MSG_RESULT(ok)
-fi
-
-_LT_DECL([global_symbol_pipe], [lt_cv_sys_global_symbol_pipe], [1],
-    [Take the output of nm and produce a listing of raw symbols and C names])
-_LT_DECL([global_symbol_to_cdecl], [lt_cv_sys_global_symbol_to_cdecl], [1],
-    [Transform the output of nm in a proper C declaration])
-_LT_DECL([global_symbol_to_c_name_address],
-    [lt_cv_sys_global_symbol_to_c_name_address], [1],
-    [Transform the output of nm in a C name address pair])
-_LT_DECL([global_symbol_to_c_name_address_lib_prefix],
-    [lt_cv_sys_global_symbol_to_c_name_address_lib_prefix], [1],
-    [Transform the output of nm in a C name address pair when lib prefix is needed])
-]) # _LT_CMD_GLOBAL_SYMBOLS
-
-
-# _LT_COMPILER_PIC([TAGNAME])
-# ---------------------------
-m4_defun([_LT_COMPILER_PIC],
-[m4_require([_LT_TAG_COMPILER])dnl
-_LT_TAGVAR(lt_prog_compiler_wl, $1)=
-_LT_TAGVAR(lt_prog_compiler_pic, $1)=
-_LT_TAGVAR(lt_prog_compiler_static, $1)=
-
-AC_MSG_CHECKING([for $compiler option to produce PIC])
-m4_if([$1], [CXX], [
-  # C++ specific cases for pic, static, wl, etc.
-  if test "$GXX" = yes; then
-    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
-    _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
-
-    case $host_os in
-    aix*)
-      # All AIX code is PIC.
-      if test "$host_cpu" = ia64; then
-	# AIX 5 now supports IA64 processor
-	_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
-      fi
-      ;;
-
-    amigaos*)
-      case $host_cpu in
-      powerpc)
-            # see comment about AmigaOS4 .so support
-            _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
-        ;;
-      m68k)
-            # FIXME: we need at least 68020 code to build shared libraries, but
-            # adding the `-m68020' flag to GCC prevents building anything better,
-            # like `-m68040'.
-            _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4'
-        ;;
-      esac
-      ;;
-
-    beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
-      # PIC is the default for these OSes.
-      ;;
-    mingw* | cygwin* | os2* | pw32* | cegcc*)
-      # This hack is so that the source file can tell whether it is being
-      # built for inclusion in a dll (and should export symbols for example).
-      # Although the cygwin gcc ignores -fPIC, still need this for old-style
-      # (--disable-auto-import) libraries
-      m4_if([$1], [GCJ], [],
-	[_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
-      ;;
-    darwin* | rhapsody*)
-      # PIC is the default on this platform
-      # Common symbols not allowed in MH_DYLIB files
-      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common'
-      ;;
-    *djgpp*)
-      # DJGPP does not support shared libraries at all
-      _LT_TAGVAR(lt_prog_compiler_pic, $1)=
-      ;;
-    interix[[3-9]]*)
-      # Interix 3.x gcc -fpic/-fPIC options generate broken code.
-      # Instead, we relocate shared libraries at runtime.
-      ;;
-    sysv4*MP*)
-      if test -d /usr/nec; then
-	_LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic
-      fi
-      ;;
-    hpux*)
-      # PIC is the default for 64-bit PA HP-UX, but not for 32-bit
-      # PA HP-UX.  On IA64 HP-UX, PIC is the default but the pic flag
-      # sets the default TLS model and affects inlining.
-      case $host_cpu in
-      hppa*64*)
-	;;
-      *)
-	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
-	;;
-      esac
-      ;;
-    *qnx* | *nto*)
-      # QNX uses GNU C++, but need to define -shared option too, otherwise
-      # it will coredump.
-      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
-      ;;
-    *)
-      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
-      ;;
-    esac
-  else
-    case $host_os in
-      aix[[4-9]]*)
-	# All AIX code is PIC.
-	if test "$host_cpu" = ia64; then
-	  # AIX 5 now supports IA64 processor
-	  _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
-	else
-	  _LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp'
-	fi
-	;;
-      chorus*)
-	case $cc_basename in
-	cxch68*)
-	  # Green Hills C++ Compiler
-	  # _LT_TAGVAR(lt_prog_compiler_static, $1)="--no_auto_instantiation -u __main -u __premain -u _abort -r $COOL_DIR/lib/libOrb.a $MVME_DIR/lib/CC/libC.a $MVME_DIR/lib/classix/libcx.s.a"
-	  ;;
-	esac
-	;;
-      dgux*)
-	case $cc_basename in
-	  ec++*)
-	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
-	    ;;
-	  ghcx*)
-	    # Green Hills C++ Compiler
-	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
-	    ;;
-	  *)
-	    ;;
-	esac
-	;;
-      freebsd* | dragonfly*)
-	# FreeBSD uses GNU C++
-	;;
-      hpux9* | hpux10* | hpux11*)
-	case $cc_basename in
-	  CC*)
-	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
-	    _LT_TAGVAR(lt_prog_compiler_static, $1)='${wl}-a ${wl}archive'
-	    if test "$host_cpu" != ia64; then
-	      _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z'
-	    fi
-	    ;;
-	  aCC*)
-	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
-	    _LT_TAGVAR(lt_prog_compiler_static, $1)='${wl}-a ${wl}archive'
-	    case $host_cpu in
-	    hppa*64*|ia64*)
-	      # +Z the default
-	      ;;
-	    *)
-	      _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z'
-	      ;;
-	    esac
-	    ;;
-	  *)
-	    ;;
-	esac
-	;;
-      interix*)
-	# This is c89, which is MS Visual C++ (no shared libs)
-	# Anyone wants to do a port?
-	;;
-      irix5* | irix6* | nonstopux*)
-	case $cc_basename in
-	  CC*)
-	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
-	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
-	    # CC pic flag -KPIC is the default.
-	    ;;
-	  *)
-	    ;;
-	esac
-	;;
-      linux* | k*bsd*-gnu | kopensolaris*-gnu)
-	case $cc_basename in
-	  KCC*)
-	    # KAI C++ Compiler
-	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,'
-	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
-	    ;;
-	  ecpc* )
-	    # old Intel C++ for x86_64 which still supported -KPIC.
-	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
-	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
-	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
-	    ;;
-	  icpc* )
-	    # Intel C++, used to be incompatible with GCC.
-	    # ICC 10 doesn't accept -KPIC any more.
-	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
-	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
-	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
-	    ;;
-	  pgCC* | pgcpp*)
-	    # Portland Group C++ compiler
-	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
-	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic'
-	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
-	    ;;
-	  cxx*)
-	    # Compaq C++
-	    # Make sure the PIC flag is empty.  It appears that all Alpha
-	    # Linux and Compaq Tru64 Unix objects are PIC.
-	    _LT_TAGVAR(lt_prog_compiler_pic, $1)=
-	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
-	    ;;
-	  xlc* | xlC*)
-	    # IBM XL 8.0 on PPC
-	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
-	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic'
-	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink'
-	    ;;
-	  *)
-	    case `$CC -V 2>&1 | sed 5q` in
-	    *Sun\ C*)
-	      # Sun C++ 5.9
-	      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
-	      _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
-	      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
-	      ;;
-	    esac
-	    ;;
-	esac
-	;;
-      lynxos*)
-	;;
-      m88k*)
-	;;
-      mvs*)
-	case $cc_basename in
-	  cxx*)
-	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-W c,exportall'
-	    ;;
-	  *)
-	    ;;
-	esac
-	;;
-      netbsd* | netbsdelf*-gnu)
-	;;
-      *qnx* | *nto*)
-        # QNX uses GNU C++, but need to define -shared option too, otherwise
-        # it will coredump.
-        _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
-        ;;
-      osf3* | osf4* | osf5*)
-	case $cc_basename in
-	  KCC*)
-	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,'
-	    ;;
-	  RCC*)
-	    # Rational C++ 2.4.1
-	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
-	    ;;
-	  cxx*)
-	    # Digital/Compaq C++
-	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
-	    # Make sure the PIC flag is empty.  It appears that all Alpha
-	    # Linux and Compaq Tru64 Unix objects are PIC.
-	    _LT_TAGVAR(lt_prog_compiler_pic, $1)=
-	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
-	    ;;
-	  *)
-	    ;;
-	esac
-	;;
-      psos*)
-	;;
-      solaris*)
-	case $cc_basename in
-	  CC*)
-	    # Sun C++ 4.2, 5.x and Centerline C++
-	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
-	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
-	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
-	    ;;
-	  gcx*)
-	    # Green Hills C++ Compiler
-	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC'
-	    ;;
-	  *)
-	    ;;
-	esac
-	;;
-      sunos4*)
-	case $cc_basename in
-	  CC*)
-	    # Sun C++ 4.x
-	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
-	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
-	    ;;
-	  lcc*)
-	    # Lucid
-	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
-	    ;;
-	  *)
-	    ;;
-	esac
-	;;
-      sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
-	case $cc_basename in
-	  CC*)
-	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
-	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
-	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
-	    ;;
-	esac
-	;;
-      tandem*)
-	case $cc_basename in
-	  NCC*)
-	    # NonStop-UX NCC 3.20
-	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
-	    ;;
-	  *)
-	    ;;
-	esac
-	;;
-      vxworks*)
-	;;
-      *)
-	_LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
-	;;
-    esac
-  fi
-],
-[
-  if test "$GCC" = yes; then
-    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
-    _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
-
-    case $host_os in
-      aix*)
-      # All AIX code is PIC.
-      if test "$host_cpu" = ia64; then
-	# AIX 5 now supports IA64 processor
-	_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
-      fi
-      ;;
-
-    amigaos*)
-      case $host_cpu in
-      powerpc)
-            # see comment about AmigaOS4 .so support
-            _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
-        ;;
-      m68k)
-            # FIXME: we need at least 68020 code to build shared libraries, but
-            # adding the `-m68020' flag to GCC prevents building anything better,
-            # like `-m68040'.
-            _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4'
-        ;;
-      esac
-      ;;
-
-    beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
-      # PIC is the default for these OSes.
-      ;;
-
-    mingw* | cygwin* | pw32* | os2* | cegcc*)
-      # This hack is so that the source file can tell whether it is being
-      # built for inclusion in a dll (and should export symbols for example).
-      # Although the cygwin gcc ignores -fPIC, still need this for old-style
-      # (--disable-auto-import) libraries
-      m4_if([$1], [GCJ], [],
-	[_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
-      ;;
-
-    darwin* | rhapsody*)
-      # PIC is the default on this platform
-      # Common symbols not allowed in MH_DYLIB files
-      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common'
-      ;;
-
-    hpux*)
-      # PIC is the default for 64-bit PA HP-UX, but not for 32-bit
-      # PA HP-UX.  On IA64 HP-UX, PIC is the default but the pic flag
-      # sets the default TLS model and affects inlining.
-      case $host_cpu in
-      hppa*64*)
-	# +Z the default
-	;;
-      *)
-	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
-	;;
-      esac
-      ;;
-
-    interix[[3-9]]*)
-      # Interix 3.x gcc -fpic/-fPIC options generate broken code.
-      # Instead, we relocate shared libraries at runtime.
-      ;;
-
-    msdosdjgpp*)
-      # Just because we use GCC doesn't mean we suddenly get shared libraries
-      # on systems that don't support them.
-      _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
-      enable_shared=no
-      ;;
-
-    *nto* | *qnx*)
-      # QNX uses GNU C++, but need to define -shared option too, otherwise
-      # it will coredump.
-      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
-      ;;
-
-    sysv4*MP*)
-      if test -d /usr/nec; then
-	_LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic
-      fi
-      ;;
-
-    *)
-      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
-      ;;
-    esac
-  else
-    # PORTME Check for flag to pass linker flags through the system compiler.
-    case $host_os in
-    aix*)
-      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
-      if test "$host_cpu" = ia64; then
-	# AIX 5 now supports IA64 processor
-	_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
-      else
-	_LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp'
-      fi
-      ;;
-
-    mingw* | cygwin* | pw32* | os2* | cegcc*)
-      # This hack is so that the source file can tell whether it is being
-      # built for inclusion in a dll (and should export symbols for example).
-      m4_if([$1], [GCJ], [],
-	[_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
-      ;;
-
-    hpux9* | hpux10* | hpux11*)
-      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
-      # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but
-      # not for PA HP-UX.
-      case $host_cpu in
-      hppa*64*|ia64*)
-	# +Z the default
-	;;
-      *)
-	_LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z'
-	;;
-      esac
-      # Is there a better lt_prog_compiler_static that works with the bundled CC?
-      _LT_TAGVAR(lt_prog_compiler_static, $1)='${wl}-a ${wl}archive'
-      ;;
-
-    irix5* | irix6* | nonstopux*)
-      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
-      # PIC (with -KPIC) is the default.
-      _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
-      ;;
-
-    linux* | k*bsd*-gnu | kopensolaris*-gnu)
-      case $cc_basename in
-      # old Intel for x86_64 which still supported -KPIC.
-      ecc*)
-	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
-	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
-	_LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
-        ;;
-      # icc used to be incompatible with GCC.
-      # ICC 10 doesn't accept -KPIC any more.
-      icc* | ifort*)
-	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
-	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
-	_LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
-        ;;
-      # Lahey Fortran 8.1.
-      lf95*)
-	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
-	_LT_TAGVAR(lt_prog_compiler_pic, $1)='--shared'
-	_LT_TAGVAR(lt_prog_compiler_static, $1)='--static'
-	;;
-      pgcc* | pgf77* | pgf90* | pgf95*)
-        # Portland Group compilers (*not* the Pentium gcc compiler,
-	# which looks to be a dead project)
-	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
-	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic'
-	_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
-        ;;
-      ccc*)
-        _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
-        # All Alpha code is PIC.
-        _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
-        ;;
-      xl*)
-	# IBM XL C 8.0/Fortran 10.1 on PPC
-	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
-	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic'
-	_LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink'
-	;;
-      *)
-	case `$CC -V 2>&1 | sed 5q` in
-	*Sun\ C*)
-	  # Sun C 5.9
-	  _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
-	  _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
-	  _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
-	  ;;
-	*Sun\ F*)
-	  # Sun Fortran 8.3 passes all unrecognized flags to the linker
-	  _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
-	  _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
-	  _LT_TAGVAR(lt_prog_compiler_wl, $1)=''
-	  ;;
-	esac
-	;;
-      esac
-      ;;
-
-    newsos6)
-      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
-      _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
-      ;;
-
-    *nto* | *qnx*)
-      # QNX uses GNU C++, but need to define -shared option too, otherwise
-      # it will coredump.
-      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
-      ;;
-
-    osf3* | osf4* | osf5*)
-      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
-      # All OSF/1 code is PIC.
-      _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
-      ;;
-
-    rdos*)
-      _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
-      ;;
-
-    solaris*)
-      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
-      _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
-      case $cc_basename in
-      f77* | f90* | f95*)
-	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ';;
-      *)
-	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,';;
-      esac
-      ;;
-
-    sunos4*)
-      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
-      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC'
-      _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
-      ;;
-
-    sysv4 | sysv4.2uw2* | sysv4.3*)
-      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
-      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
-      _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
-      ;;
-
-    sysv4*MP*)
-      if test -d /usr/nec ;then
-	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-Kconform_pic'
-	_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
-      fi
-      ;;
-
-    sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
-      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
-      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
-      _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
-      ;;
-
-    unicos*)
-      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
-      _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
-      ;;
-
-    uts4*)
-      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
-      _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
-      ;;
-
-    *)
-      _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
-      ;;
-    esac
-  fi
-])
-case $host_os in
-  # For platforms which do not support PIC, -DPIC is meaningless:
-  *djgpp*)
-    _LT_TAGVAR(lt_prog_compiler_pic, $1)=
-    ;;
-  *)
-    _LT_TAGVAR(lt_prog_compiler_pic, $1)="$_LT_TAGVAR(lt_prog_compiler_pic, $1)@&t@m4_if([$1],[],[ -DPIC],[m4_if([$1],[CXX],[ -DPIC],[])])"
-    ;;
-esac
-AC_MSG_RESULT([$_LT_TAGVAR(lt_prog_compiler_pic, $1)])
-_LT_TAGDECL([wl], [lt_prog_compiler_wl], [1],
-	[How to pass a linker flag through the compiler])
-
-#
-# Check to make sure the PIC flag actually works.
-#
-if test -n "$_LT_TAGVAR(lt_prog_compiler_pic, $1)"; then
-  _LT_COMPILER_OPTION([if $compiler PIC flag $_LT_TAGVAR(lt_prog_compiler_pic, $1) works],
-    [_LT_TAGVAR(lt_cv_prog_compiler_pic_works, $1)],
-    [$_LT_TAGVAR(lt_prog_compiler_pic, $1)@&t@m4_if([$1],[],[ -DPIC],[m4_if([$1],[CXX],[ -DPIC],[])])], [],
-    [case $_LT_TAGVAR(lt_prog_compiler_pic, $1) in
-     "" | " "*) ;;
-     *) _LT_TAGVAR(lt_prog_compiler_pic, $1)=" $_LT_TAGVAR(lt_prog_compiler_pic, $1)" ;;
-     esac],
-    [_LT_TAGVAR(lt_prog_compiler_pic, $1)=
-     _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no])
-fi
-_LT_TAGDECL([pic_flag], [lt_prog_compiler_pic], [1],
-	[Additional compiler flags for building library objects])
-
-#
-# Check to make sure the static flag actually works.
-#
-wl=$_LT_TAGVAR(lt_prog_compiler_wl, $1) eval lt_tmp_static_flag=\"$_LT_TAGVAR(lt_prog_compiler_static, $1)\"
-_LT_LINKER_OPTION([if $compiler static flag $lt_tmp_static_flag works],
-  _LT_TAGVAR(lt_cv_prog_compiler_static_works, $1),
-  $lt_tmp_static_flag,
-  [],
-  [_LT_TAGVAR(lt_prog_compiler_static, $1)=])
-_LT_TAGDECL([link_static_flag], [lt_prog_compiler_static], [1],
-	[Compiler flag to prevent dynamic linking])
-])# _LT_COMPILER_PIC
-
-
-# _LT_LINKER_SHLIBS([TAGNAME])
-# ----------------------------
-# See if the linker supports building shared libraries.
-m4_defun([_LT_LINKER_SHLIBS],
-[AC_REQUIRE([LT_PATH_LD])dnl
-AC_REQUIRE([LT_PATH_NM])dnl
-m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-m4_require([_LT_DECL_EGREP])dnl
-m4_require([_LT_DECL_SED])dnl
-m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl
-m4_require([_LT_TAG_COMPILER])dnl
-AC_MSG_CHECKING([whether the $compiler linker ($LD) supports shared libraries])
-m4_if([$1], [CXX], [
-  _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
-  case $host_os in
-  aix[[4-9]]*)
-    # If we're using GNU nm, then we don't want the "-C" option.
-    # -C means demangle to AIX nm, but means don't demangle with GNU nm
-    if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
-      _LT_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && ([substr](\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
-    else
-      _LT_TAGVAR(export_symbols_cmds, $1)='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && ([substr](\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
-    fi
-    ;;
-  pw32*)
-    _LT_TAGVAR(export_symbols_cmds, $1)="$ltdll_cmds"
-  ;;
-  cygwin* | mingw* | cegcc*)
-    _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1 DATA/;/^.*[[ ]]__nm__/s/^.*[[ ]]__nm__\([[^ ]]*\)[[ ]][[^ ]]*/\1 DATA/;/^I[[ ]]/d;/^[[AITW]][[ ]]/s/.* //'\'' | sort | uniq > $export_symbols'
-  ;;
-  linux* | k*bsd*-gnu)
-    _LT_TAGVAR(link_all_deplibs, $1)=no
-  ;;
-  *)
-    _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
-  ;;
-  esac
-  _LT_TAGVAR(exclude_expsyms, $1)=['_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*']
-], [
-  runpath_var=
-  _LT_TAGVAR(allow_undefined_flag, $1)=
-  _LT_TAGVAR(always_export_symbols, $1)=no
-  _LT_TAGVAR(archive_cmds, $1)=
-  _LT_TAGVAR(archive_expsym_cmds, $1)=
-  _LT_TAGVAR(compiler_needs_object, $1)=no
-  _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
-  _LT_TAGVAR(export_dynamic_flag_spec, $1)=
-  _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
-  _LT_TAGVAR(hardcode_automatic, $1)=no
-  _LT_TAGVAR(hardcode_direct, $1)=no
-  _LT_TAGVAR(hardcode_direct_absolute, $1)=no
-  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
-  _LT_TAGVAR(hardcode_libdir_flag_spec_ld, $1)=
-  _LT_TAGVAR(hardcode_libdir_separator, $1)=
-  _LT_TAGVAR(hardcode_minus_L, $1)=no
-  _LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
-  _LT_TAGVAR(inherit_rpath, $1)=no
-  _LT_TAGVAR(link_all_deplibs, $1)=unknown
-  _LT_TAGVAR(module_cmds, $1)=
-  _LT_TAGVAR(module_expsym_cmds, $1)=
-  _LT_TAGVAR(old_archive_from_new_cmds, $1)=
-  _LT_TAGVAR(old_archive_from_expsyms_cmds, $1)=
-  _LT_TAGVAR(thread_safe_flag_spec, $1)=
-  _LT_TAGVAR(whole_archive_flag_spec, $1)=
-  # include_expsyms should be a list of space-separated symbols to be *always*
-  # included in the symbol list
-  _LT_TAGVAR(include_expsyms, $1)=
-  # exclude_expsyms can be an extended regexp of symbols to exclude
-  # it will be wrapped by ` (' and `)$', so one must not match beginning or
-  # end of line.  Example: `a|bc|.*d.*' will exclude the symbols `a' and `bc',
-  # as well as any symbol that contains `d'.
-  _LT_TAGVAR(exclude_expsyms, $1)=['_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*']
-  # Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out
-  # platforms (ab)use it in PIC code, but their linkers get confused if
-  # the symbol is explicitly referenced.  Since portable code cannot
-  # rely on this symbol name, it's probably fine to never include it in
-  # preloaded symbol tables.
-  # Exclude shared library initialization/finalization symbols.
-dnl Note also adjust exclude_expsyms for C++ above.
-  extract_expsyms_cmds=
-
-  case $host_os in
-  cygwin* | mingw* | pw32* | cegcc*)
-    # FIXME: the MSVC++ port hasn't been tested in a loooong time
-    # When not using gcc, we currently assume that we are using
-    # Microsoft Visual C++.
-    if test "$GCC" != yes; then
-      with_gnu_ld=no
-    fi
-    ;;
-  interix*)
-    # we just hope/assume this is gcc and not c89 (= MSVC++)
-    with_gnu_ld=yes
-    ;;
-  openbsd*)
-    with_gnu_ld=no
-    ;;
-  linux* | k*bsd*-gnu)
-    _LT_TAGVAR(link_all_deplibs, $1)=no
-    ;;
-  esac
-
-  _LT_TAGVAR(ld_shlibs, $1)=yes
-  if test "$with_gnu_ld" = yes; then
-    # If archive_cmds runs LD, not CC, wlarc should be empty
-    wlarc='${wl}'
-
-    # Set some defaults for GNU ld with shared library support. These
-    # are reset later if shared libraries are not supported. Putting them
-    # here allows them to be overridden if necessary.
-    runpath_var=LD_RUN_PATH
-    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
-    _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
-    # ancient GNU ld didn't support --whole-archive et. al.
-    if $LD --help 2>&1 | $GREP 'no-whole-archive' > /dev/null; then
-      _LT_TAGVAR(whole_archive_flag_spec, $1)="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
-    else
-      _LT_TAGVAR(whole_archive_flag_spec, $1)=
-    fi
-    supports_anon_versioning=no
-    case `$LD -v 2>&1` in
-      *GNU\ gold*) supports_anon_versioning=yes ;;
-      *\ [[01]].* | *\ 2.[[0-9]].* | *\ 2.10.*) ;; # catch versions < 2.11
-      *\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ...
-      *\ 2.11.92.0.12\ *) supports_anon_versioning=yes ;; # Mandrake 8.2 ...
-      *\ 2.11.*) ;; # other 2.11 versions
-      *) supports_anon_versioning=yes ;;
-    esac
-
-    # See if GNU ld supports shared libraries.
-    case $host_os in
-    aix[[3-9]]*)
-      # On AIX/PPC, the GNU linker is very broken
-      if test "$host_cpu" != ia64; then
-	_LT_TAGVAR(ld_shlibs, $1)=no
-	cat <<_LT_EOF 1>&2
-
-*** Warning: the GNU linker, at least up to release 2.9.1, is reported
-*** to be unable to reliably create shared libraries on AIX.
-*** Therefore, libtool is disabling shared libraries support.  If you
-*** really care for shared libraries, you may want to modify your PATH
-*** so that a non-GNU linker is found, and then restart.
-
-_LT_EOF
-      fi
-      ;;
-
-    amigaos*)
-      case $host_cpu in
-      powerpc)
-            # see comment about AmigaOS4 .so support
-            _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
-            _LT_TAGVAR(archive_expsym_cmds, $1)=''
-        ;;
-      m68k)
-            _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
-            _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
-            _LT_TAGVAR(hardcode_minus_L, $1)=yes
-        ;;
-      esac
-      ;;
-
-    beos*)
-      if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
-	_LT_TAGVAR(allow_undefined_flag, $1)=unsupported
-	# Joseph Beckenbach <jrb3@best.com> says some releases of gcc
-	# support --undefined.  This deserves some investigation.  FIXME
-	_LT_TAGVAR(archive_cmds, $1)='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
-      else
-	_LT_TAGVAR(ld_shlibs, $1)=no
-      fi
-      ;;
-
-    cygwin* | mingw* | pw32* | cegcc*)
-      # _LT_TAGVAR(hardcode_libdir_flag_spec, $1) is actually meaningless,
-      # as there is no search path for DLLs.
-      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
-      _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
-      _LT_TAGVAR(always_export_symbols, $1)=no
-      _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
-      _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1 DATA/'\'' | $SED -e '\''/^[[AITW]][[ ]]/s/.*[[ ]]//'\'' | sort | uniq > $export_symbols'
-
-      if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
-        _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
-	# If the export-symbols file already is a .def file (1st line
-	# is EXPORTS), use it as is; otherwise, prepend...
-	_LT_TAGVAR(archive_expsym_cmds, $1)='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
-	  cp $export_symbols $output_objdir/$soname.def;
-	else
-	  echo EXPORTS > $output_objdir/$soname.def;
-	  cat $export_symbols >> $output_objdir/$soname.def;
-	fi~
-	$CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
-      else
-	_LT_TAGVAR(ld_shlibs, $1)=no
-      fi
-      ;;
-
-    interix[[3-9]]*)
-      _LT_TAGVAR(hardcode_direct, $1)=no
-      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
-      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
-      _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
-      # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
-      # Instead, shared libraries are loaded at an image base (0x10000000 by
-      # default) and relocated if they conflict, which is a slow very memory
-      # consuming and fragmenting process.  To avoid this, we pick a random,
-      # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
-      # time.  Moving up from 0x10000000 also allows more sbrk(2) space.
-      _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
-      _LT_TAGVAR(archive_expsym_cmds, $1)='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
-      ;;
-
-    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
-      tmp_diet=no
-      if test "$host_os" = linux-dietlibc; then
-	case $cc_basename in
-	  diet\ *) tmp_diet=yes;;	# linux-dietlibc with static linking (!diet-dyn)
-	esac
-      fi
-      if $LD --help 2>&1 | $EGREP ': supported targets:.* elf' > /dev/null \
-	 && test "$tmp_diet" = no
-      then
-	tmp_addflag=
-	tmp_sharedflag='-shared'
-	case $cc_basename,$host_cpu in
-        pgcc*)				# Portland Group C compiler
-	  _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; $ECHO \"$new_convenience\"` ${wl}--no-whole-archive'
-	  tmp_addflag=' $pic_flag'
-	  ;;
-	pgf77* | pgf90* | pgf95*)	# Portland Group f77 and f90 compilers
-	  _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; $ECHO \"$new_convenience\"` ${wl}--no-whole-archive'
-	  tmp_addflag=' $pic_flag -Mnomain' ;;
-	ecc*,ia64* | icc*,ia64*)	# Intel C compiler on ia64
-	  tmp_addflag=' -i_dynamic' ;;
-	efc*,ia64* | ifort*,ia64*)	# Intel Fortran compiler on ia64
-	  tmp_addflag=' -i_dynamic -nofor_main' ;;
-	ifc* | ifort*)			# Intel Fortran compiler
-	  tmp_addflag=' -nofor_main' ;;
-	lf95*)				# Lahey Fortran 8.1
-	  _LT_TAGVAR(whole_archive_flag_spec, $1)=
-	  tmp_sharedflag='--shared' ;;
-	xl[[cC]]*)			# IBM XL C 8.0 on PPC (deal with xlf below)
-	  tmp_sharedflag='-qmkshrobj'
-	  tmp_addflag= ;;
-	esac
-	case `$CC -V 2>&1 | sed 5q` in
-	*Sun\ C*)			# Sun C 5.9
-	  _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; $ECHO \"$new_convenience\"` ${wl}--no-whole-archive'
-	  _LT_TAGVAR(compiler_needs_object, $1)=yes
-	  tmp_sharedflag='-G' ;;
-	*Sun\ F*)			# Sun Fortran 8.3
-	  tmp_sharedflag='-G' ;;
-	esac
-	_LT_TAGVAR(archive_cmds, $1)='$CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
-
-        if test "x$supports_anon_versioning" = xyes; then
-          _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~
-	    cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
-	    echo "local: *; };" >> $output_objdir/$libname.ver~
-	    $CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-version-script ${wl}$output_objdir/$libname.ver -o $lib'
-        fi
-
-	case $cc_basename in
-	xlf*)
-	  # IBM XL Fortran 10.1 on PPC cannot create shared libs itself
-	  _LT_TAGVAR(whole_archive_flag_spec, $1)='--whole-archive$convenience --no-whole-archive'
-	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
-	  _LT_TAGVAR(hardcode_libdir_flag_spec_ld, $1)='-rpath $libdir'
-	  _LT_TAGVAR(archive_cmds, $1)='$LD -shared $libobjs $deplibs $compiler_flags -soname $soname -o $lib'
-	  if test "x$supports_anon_versioning" = xyes; then
-	    _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~
-	      cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
-	      echo "local: *; };" >> $output_objdir/$libname.ver~
-	      $LD -shared $libobjs $deplibs $compiler_flags -soname $soname -version-script $output_objdir/$libname.ver -o $lib'
-	  fi
-	  ;;
-	esac
-      else
-        _LT_TAGVAR(ld_shlibs, $1)=no
-      fi
-      ;;
-
-    netbsd* | netbsdelf*-gnu)
-      if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
-	_LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
-	wlarc=
-      else
-	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
-	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
-      fi
-      ;;
-
-    solaris*)
-      if $LD -v 2>&1 | $GREP 'BFD 2\.8' > /dev/null; then
-	_LT_TAGVAR(ld_shlibs, $1)=no
-	cat <<_LT_EOF 1>&2
-
-*** Warning: The releases 2.8.* of the GNU linker cannot reliably
-*** create shared libraries on Solaris systems.  Therefore, libtool
-*** is disabling shared libraries support.  We urge you to upgrade GNU
-*** binutils to release 2.9.1 or newer.  Another option is to modify
-*** your PATH or compiler configuration so that the native linker is
-*** used, and then restart.
-
-_LT_EOF
-      elif $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
-	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
-	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
-      else
-	_LT_TAGVAR(ld_shlibs, $1)=no
-      fi
-      ;;
-
-    sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*)
-      case `$LD -v 2>&1` in
-        *\ [[01]].* | *\ 2.[[0-9]].* | *\ 2.1[[0-5]].*)
-	_LT_TAGVAR(ld_shlibs, $1)=no
-	cat <<_LT_EOF 1>&2
-
-*** Warning: Releases of the GNU linker prior to 2.16.91.0.3 can not
-*** reliably create shared libraries on SCO systems.  Therefore, libtool
-*** is disabling shared libraries support.  We urge you to upgrade GNU
-*** binutils to release 2.16.91.0.3 or newer.  Another option is to modify
-*** your PATH or compiler configuration so that the native linker is
-*** used, and then restart.
-
-_LT_EOF
-	;;
-	*)
-	  # For security reasons, it is highly recommended that you always
-	  # use absolute paths for naming shared libraries, and exclude the
-	  # DT_RUNPATH tag from executables and libraries.  But doing so
-	  # requires that you compile everything twice, which is a pain.
-	  if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
-	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
-	    _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
-	    _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
-	  else
-	    _LT_TAGVAR(ld_shlibs, $1)=no
-	  fi
-	;;
-      esac
-      ;;
-
-    sunos4*)
-      _LT_TAGVAR(archive_cmds, $1)='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags'
-      wlarc=
-      _LT_TAGVAR(hardcode_direct, $1)=yes
-      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
-      ;;
-
-    *)
-      if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
-	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
-	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
-      else
-	_LT_TAGVAR(ld_shlibs, $1)=no
-      fi
-      ;;
-    esac
-
-    if test "$_LT_TAGVAR(ld_shlibs, $1)" = no; then
-      runpath_var=
-      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
-      _LT_TAGVAR(export_dynamic_flag_spec, $1)=
-      _LT_TAGVAR(whole_archive_flag_spec, $1)=
-    fi
-  else
-    # PORTME fill in a description of your system's linker (not GNU ld)
-    case $host_os in
-    aix3*)
-      _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
-      _LT_TAGVAR(always_export_symbols, $1)=yes
-      _LT_TAGVAR(archive_expsym_cmds, $1)='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
-      # Note: this linker hardcodes the directories in LIBPATH if there
-      # are no directories specified by -L.
-      _LT_TAGVAR(hardcode_minus_L, $1)=yes
-      if test "$GCC" = yes && test -z "$lt_prog_compiler_static"; then
-	# Neither direct hardcoding nor static linking is supported with a
-	# broken collect2.
-	_LT_TAGVAR(hardcode_direct, $1)=unsupported
-      fi
-      ;;
-
-    aix[[4-9]]*)
-      if test "$host_cpu" = ia64; then
-	# On IA64, the linker does run time linking by default, so we don't
-	# have to do anything special.
-	aix_use_runtimelinking=no
-	exp_sym_flag='-Bexport'
-	no_entry_flag=""
-      else
-	# If we're using GNU nm, then we don't want the "-C" option.
-	# -C means demangle to AIX nm, but means don't demangle with GNU nm
-	if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
-	  _LT_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && ([substr](\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
-	else
-	  _LT_TAGVAR(export_symbols_cmds, $1)='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && ([substr](\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
-	fi
-	aix_use_runtimelinking=no
-
-	# Test if we are trying to use run time linking or normal
-	# AIX style linking. If -brtl is somewhere in LDFLAGS, we
-	# need to do runtime linking.
-	case $host_os in aix4.[[23]]|aix4.[[23]].*|aix[[5-9]]*)
-	  for ld_flag in $LDFLAGS; do
-	  if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl"); then
-	    aix_use_runtimelinking=yes
-	    break
-	  fi
-	  done
-	  ;;
-	esac
-
-	exp_sym_flag='-bexport'
-	no_entry_flag='-bnoentry'
-      fi
-
-      # When large executables or shared objects are built, AIX ld can
-      # have problems creating the table of contents.  If linking a library
-      # or program results in "error TOC overflow" add -mminimal-toc to
-      # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
-      # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
-
-      _LT_TAGVAR(archive_cmds, $1)=''
-      _LT_TAGVAR(hardcode_direct, $1)=yes
-      _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
-      _LT_TAGVAR(hardcode_libdir_separator, $1)=':'
-      _LT_TAGVAR(link_all_deplibs, $1)=yes
-      _LT_TAGVAR(file_list_spec, $1)='${wl}-f,'
-
-      if test "$GCC" = yes; then
-	case $host_os in aix4.[[012]]|aix4.[[012]].*)
-	# We only want to do this on AIX 4.2 and lower, the check
-	# below for broken collect2 doesn't work under 4.3+
-	  collect2name=`${CC} -print-prog-name=collect2`
-	  if test -f "$collect2name" &&
-	   strings "$collect2name" | $GREP resolve_lib_name >/dev/null
-	  then
-	  # We have reworked collect2
-	  :
-	  else
-	  # We have old collect2
-	  _LT_TAGVAR(hardcode_direct, $1)=unsupported
-	  # It fails to find uninstalled libraries when the uninstalled
-	  # path is not listed in the libpath.  Setting hardcode_minus_L
-	  # to unsupported forces relinking
-	  _LT_TAGVAR(hardcode_minus_L, $1)=yes
-	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
-	  _LT_TAGVAR(hardcode_libdir_separator, $1)=
-	  fi
-	  ;;
-	esac
-	shared_flag='-shared'
-	if test "$aix_use_runtimelinking" = yes; then
-	  shared_flag="$shared_flag "'${wl}-G'
-	fi
-	_LT_TAGVAR(link_all_deplibs, $1)=no
-      else
-	# not using gcc
-	if test "$host_cpu" = ia64; then
-	# VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
-	# chokes on -Wl,-G. The following line is correct:
-	  shared_flag='-G'
-	else
-	  if test "$aix_use_runtimelinking" = yes; then
-	    shared_flag='${wl}-G'
-	  else
-	    shared_flag='${wl}-bM:SRE'
-	  fi
-	fi
-      fi
-
-      _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-bexpall'
-      # It seems that -bexpall does not export symbols beginning with
-      # underscore (_), so it is better to generate a list of symbols to export.
-      _LT_TAGVAR(always_export_symbols, $1)=yes
-      if test "$aix_use_runtimelinking" = yes; then
-	# Warning - without using the other runtime loading flags (-brtl),
-	# -berok will link without error, but may produce a broken library.
-	_LT_TAGVAR(allow_undefined_flag, $1)='-berok'
-        # Determine the default libpath from the value encoded in an
-        # empty executable.
-        _LT_SYS_MODULE_PATH_AIX
-        _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-blibpath:$libdir:'"$aix_libpath"
-        _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then $ECHO "X${wl}${allow_undefined_flag}" | $Xsed; else :; fi` '"\${wl}$exp_sym_flag:\$export_symbols $shared_flag"
-      else
-	if test "$host_cpu" = ia64; then
-	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R $libdir:/usr/lib:/lib'
-	  _LT_TAGVAR(allow_undefined_flag, $1)="-z nodefs"
-	  _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$exp_sym_flag:\$export_symbols"
-	else
-	 # Determine the default libpath from the value encoded in an
-	 # empty executable.
-	 _LT_SYS_MODULE_PATH_AIX
-	 _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-blibpath:$libdir:'"$aix_libpath"
-	  # Warning - without using the other run time loading flags,
-	  # -berok will link without error, but may produce a broken library.
-	  _LT_TAGVAR(no_undefined_flag, $1)=' ${wl}-bernotok'
-	  _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-berok'
-	  # Exported symbols can be pulled into shared objects from archives
-	  _LT_TAGVAR(whole_archive_flag_spec, $1)='$convenience'
-	  _LT_TAGVAR(archive_cmds_need_lc, $1)=yes
-	  # This is similar to how AIX traditionally builds its shared libraries.
-	  _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs ${wl}-bnoentry $compiler_flags ${wl}-bE:$export_symbols${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname'
-	fi
-      fi
-      ;;
-
-    amigaos*)
-      case $host_cpu in
-      powerpc)
-            # see comment about AmigaOS4 .so support
-            _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
-            _LT_TAGVAR(archive_expsym_cmds, $1)=''
-        ;;
-      m68k)
-            _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
-            _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
-            _LT_TAGVAR(hardcode_minus_L, $1)=yes
-        ;;
-      esac
-      ;;
-
-    bsdi[[45]]*)
-      _LT_TAGVAR(export_dynamic_flag_spec, $1)=-rdynamic
-      ;;
-
-    cygwin* | mingw* | pw32* | cegcc*)
-      # When not using gcc, we currently assume that we are using
-      # Microsoft Visual C++.
-      # hardcode_libdir_flag_spec is actually meaningless, as there is
-      # no search path for DLLs.
-      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' '
-      _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
-      # Tell ltmain to make .lib files, not .a files.
-      libext=lib
-      # Tell ltmain to make .dll files, not .so files.
-      shrext_cmds=".dll"
-      # FIXME: Setting linknames here is a bad hack.
-      _LT_TAGVAR(archive_cmds, $1)='$CC -o $lib $libobjs $compiler_flags `$ECHO "X$deplibs" | $Xsed -e '\''s/ -lc$//'\''` -link -dll~linknames='
-      # The linker will automatically build a .lib file if we build a DLL.
-      _LT_TAGVAR(old_archive_from_new_cmds, $1)='true'
-      # FIXME: Should let the user specify the lib program.
-      _LT_TAGVAR(old_archive_cmds, $1)='lib -OUT:$oldlib$oldobjs$old_deplibs'
-      _LT_TAGVAR(fix_srcfile_path, $1)='`cygpath -w "$srcfile"`'
-      _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
-      ;;
-
-    darwin* | rhapsody*)
-      _LT_DARWIN_LINKER_FEATURES($1)
-      ;;
-
-    dgux*)
-      _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
-      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
-      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
-      ;;
-
-    freebsd1*)
-      _LT_TAGVAR(ld_shlibs, $1)=no
-      ;;
-
-    # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
-    # support.  Future versions do this automatically, but an explicit c++rt0.o
-    # does not break anything, and helps significantly (at the cost of a little
-    # extra space).
-    freebsd2.2*)
-      _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
-      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
-      _LT_TAGVAR(hardcode_direct, $1)=yes
-      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
-      ;;
-
-    # Unfortunately, older versions of FreeBSD 2 do not have this feature.
-    freebsd2*)
-      _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
-      _LT_TAGVAR(hardcode_direct, $1)=yes
-      _LT_TAGVAR(hardcode_minus_L, $1)=yes
-      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
-      ;;
-
-    # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
-    freebsd* | dragonfly*)
-      _LT_TAGVAR(archive_cmds, $1)='$CC -shared -o $lib $libobjs $deplibs $compiler_flags'
-      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
-      _LT_TAGVAR(hardcode_direct, $1)=yes
-      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
-      ;;
-
-    hpux9*)
-      if test "$GCC" = yes; then
-	_LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -shared -fPIC ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
-      else
-	_LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
-      fi
-      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
-      _LT_TAGVAR(hardcode_libdir_separator, $1)=:
-      _LT_TAGVAR(hardcode_direct, $1)=yes
-
-      # hardcode_minus_L: Not really in the search PATH,
-      # but as the default location of the library.
-      _LT_TAGVAR(hardcode_minus_L, $1)=yes
-      _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
-      ;;
-
-    hpux10*)
-      if test "$GCC" = yes -a "$with_gnu_ld" = no; then
-	_LT_TAGVAR(archive_cmds, $1)='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
-      else
-	_LT_TAGVAR(archive_cmds, $1)='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
-      fi
-      if test "$with_gnu_ld" = no; then
-	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
-	_LT_TAGVAR(hardcode_libdir_flag_spec_ld, $1)='+b $libdir'
-	_LT_TAGVAR(hardcode_libdir_separator, $1)=:
-	_LT_TAGVAR(hardcode_direct, $1)=yes
-	_LT_TAGVAR(hardcode_direct_absolute, $1)=yes
-	_LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
-	# hardcode_minus_L: Not really in the search PATH,
-	# but as the default location of the library.
-	_LT_TAGVAR(hardcode_minus_L, $1)=yes
-      fi
-      ;;
-
-    hpux11*)
-      if test "$GCC" = yes -a "$with_gnu_ld" = no; then
-	case $host_cpu in
-	hppa*64*)
-	  _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
-	  ;;
-	ia64*)
-	  _LT_TAGVAR(archive_cmds, $1)='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
-	  ;;
-	*)
-	  _LT_TAGVAR(archive_cmds, $1)='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
-	  ;;
-	esac
-      else
-	case $host_cpu in
-	hppa*64*)
-	  _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
-	  ;;
-	ia64*)
-	  _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
-	  ;;
-	*)
-	  _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
-	  ;;
-	esac
-      fi
-      if test "$with_gnu_ld" = no; then
-	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
-	_LT_TAGVAR(hardcode_libdir_separator, $1)=:
-
-	case $host_cpu in
-	hppa*64*|ia64*)
-	  _LT_TAGVAR(hardcode_direct, $1)=no
-	  _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
-	  ;;
-	*)
-	  _LT_TAGVAR(hardcode_direct, $1)=yes
-	  _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
-	  _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
-
-	  # hardcode_minus_L: Not really in the search PATH,
-	  # but as the default location of the library.
-	  _LT_TAGVAR(hardcode_minus_L, $1)=yes
-	  ;;
-	esac
-      fi
-      ;;
-
-    irix5* | irix6* | nonstopux*)
-      if test "$GCC" = yes; then
-	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && $ECHO "X${wl}-set_version ${wl}$verstring" | $Xsed` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
-	# Try to use the -exported_symbol ld option, if it does not
-	# work, assume that -exports_file does not work either and
-	# implicitly export all symbols.
-        save_LDFLAGS="$LDFLAGS"
-        LDFLAGS="$LDFLAGS -shared ${wl}-exported_symbol ${wl}foo ${wl}-update_registry ${wl}/dev/null"
-        AC_LINK_IFELSE(int foo(void) {},
-          _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && $ECHO "X${wl}-set_version ${wl}$verstring" | $Xsed` ${wl}-update_registry ${wl}${output_objdir}/so_locations ${wl}-exports_file ${wl}$export_symbols -o $lib'
-        )
-        LDFLAGS="$save_LDFLAGS"
-      else
-	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && $ECHO "X-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -o $lib'
-	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && $ECHO "X-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -exports_file $export_symbols -o $lib'
-      fi
-      _LT_TAGVAR(archive_cmds_need_lc, $1)='no'
-      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
-      _LT_TAGVAR(hardcode_libdir_separator, $1)=:
-      _LT_TAGVAR(inherit_rpath, $1)=yes
-      _LT_TAGVAR(link_all_deplibs, $1)=yes
-      ;;
-
-    netbsd* | netbsdelf*-gnu)
-      if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
-	_LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'  # a.out
-      else
-	_LT_TAGVAR(archive_cmds, $1)='$LD -shared -o $lib $libobjs $deplibs $linker_flags'      # ELF
-      fi
-      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
-      _LT_TAGVAR(hardcode_direct, $1)=yes
-      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
-      ;;
-
-    newsos6)
-      _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
-      _LT_TAGVAR(hardcode_direct, $1)=yes
-      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
-      _LT_TAGVAR(hardcode_libdir_separator, $1)=:
-      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
-      ;;
-
-    *nto* | *qnx*)
-      ;;
-
-    openbsd*)
-      if test -f /usr/libexec/ld.so; then
-	_LT_TAGVAR(hardcode_direct, $1)=yes
-	_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
-	_LT_TAGVAR(hardcode_direct_absolute, $1)=yes
-	if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
-	  _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
-	  _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags ${wl}-retain-symbols-file,$export_symbols'
-	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
-	  _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
-	else
-	  case $host_os in
-	   openbsd[[01]].* | openbsd2.[[0-7]] | openbsd2.[[0-7]].*)
-	     _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
-	     _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
-	     ;;
-	   *)
-	     _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
-	     _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
-	     ;;
-	  esac
-	fi
-      else
-	_LT_TAGVAR(ld_shlibs, $1)=no
-      fi
-      ;;
-
-    os2*)
-      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
-      _LT_TAGVAR(hardcode_minus_L, $1)=yes
-      _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
-      _LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY $libname INITINSTANCE" > $output_objdir/$libname.def~$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~$ECHO DATA >> $output_objdir/$libname.def~$ECHO " SINGLE NONSHARED" >> $output_objdir/$libname.def~$ECHO EXPORTS >> $output_objdir/$libname.def~emxexp $libobjs >> $output_objdir/$libname.def~$CC -Zdll -Zcrtdll -o $lib $libobjs $deplibs $compiler_flags $output_objdir/$libname.def'
-      _LT_TAGVAR(old_archive_from_new_cmds, $1)='emximp -o $output_objdir/$libname.a $output_objdir/$libname.def'
-      ;;
-
-    osf3*)
-      if test "$GCC" = yes; then
-	_LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*'
-	_LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && $ECHO "X${wl}-set_version ${wl}$verstring" | $Xsed` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
-      else
-	_LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*'
-	_LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && $ECHO "X-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -o $lib'
-      fi
-      _LT_TAGVAR(archive_cmds_need_lc, $1)='no'
-      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
-      _LT_TAGVAR(hardcode_libdir_separator, $1)=:
-      ;;
-
-    osf4* | osf5*)	# as osf3* with the addition of -msym flag
-      if test "$GCC" = yes; then
-	_LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*'
-	_LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && $ECHO "X${wl}-set_version ${wl}$verstring" | $Xsed` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
-	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
-      else
-	_LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*'
-	_LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && $ECHO "X-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -o $lib'
-	_LT_TAGVAR(archive_expsym_cmds, $1)='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; printf "%s\\n" "-hidden">> $lib.exp~
-	$CC -shared${allow_undefined_flag} ${wl}-input ${wl}$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "X-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -o $lib~$RM $lib.exp'
-
-	# Both c and cxx compiler support -rpath directly
-	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir'
-      fi
-      _LT_TAGVAR(archive_cmds_need_lc, $1)='no'
-      _LT_TAGVAR(hardcode_libdir_separator, $1)=:
-      ;;
-
-    solaris*)
-      _LT_TAGVAR(no_undefined_flag, $1)=' -z defs'
-      if test "$GCC" = yes; then
-	wlarc='${wl}'
-	_LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-z ${wl}text ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
-	_LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
-	  $CC -shared ${wl}-z ${wl}text ${wl}-M ${wl}$lib.exp ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
-      else
-	case `$CC -V 2>&1` in
-	*"Compilers 5.0"*)
-	  wlarc=''
-	  _LT_TAGVAR(archive_cmds, $1)='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
-	  _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
-	  $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp'
-	  ;;
-	*)
-	  wlarc='${wl}'
-	  _LT_TAGVAR(archive_cmds, $1)='$CC -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $compiler_flags'
-	  _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
-	  $CC -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
-	  ;;
-	esac
-      fi
-      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
-      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
-      case $host_os in
-      solaris2.[[0-5]] | solaris2.[[0-5]].*) ;;
-      *)
-	# The compiler driver will combine and reorder linker options,
-	# but understands `-z linker_flag'.  GCC discards it without `$wl',
-	# but is careful enough not to reorder.
-	# Supported since Solaris 2.6 (maybe 2.5.1?)
-	if test "$GCC" = yes; then
-	  _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
-	else
-	  _LT_TAGVAR(whole_archive_flag_spec, $1)='-z allextract$convenience -z defaultextract'
-	fi
-	;;
-      esac
-      _LT_TAGVAR(link_all_deplibs, $1)=yes
-      ;;
-
-    sunos4*)
-      if test "x$host_vendor" = xsequent; then
-	# Use $CC to link under sequent, because it throws in some extra .o
-	# files that make .init and .fini sections work.
-	_LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h $soname -o $lib $libobjs $deplibs $compiler_flags'
-      else
-	_LT_TAGVAR(archive_cmds, $1)='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
-      fi
-      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
-      _LT_TAGVAR(hardcode_direct, $1)=yes
-      _LT_TAGVAR(hardcode_minus_L, $1)=yes
-      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
-      ;;
-
-    sysv4)
-      case $host_vendor in
-	sni)
-	  _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
-	  _LT_TAGVAR(hardcode_direct, $1)=yes # is this really true???
-	;;
-	siemens)
-	  ## LD is ld it makes a PLAMLIB
-	  ## CC just makes a GrossModule.
-	  _LT_TAGVAR(archive_cmds, $1)='$LD -G -o $lib $libobjs $deplibs $linker_flags'
-	  _LT_TAGVAR(reload_cmds, $1)='$CC -r -o $output$reload_objs'
-	  _LT_TAGVAR(hardcode_direct, $1)=no
-        ;;
-	motorola)
-	  _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
-	  _LT_TAGVAR(hardcode_direct, $1)=no #Motorola manual says yes, but my tests say they lie
-	;;
-      esac
-      runpath_var='LD_RUN_PATH'
-      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
-      ;;
-
-    sysv4.3*)
-      _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
-      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
-      _LT_TAGVAR(export_dynamic_flag_spec, $1)='-Bexport'
-      ;;
-
-    sysv4*MP*)
-      if test -d /usr/nec; then
-	_LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
-	_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
-	runpath_var=LD_RUN_PATH
-	hardcode_runpath_var=yes
-	_LT_TAGVAR(ld_shlibs, $1)=yes
-      fi
-      ;;
-
-    sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[[01]].[[10]]* | unixware7* | sco3.2v5.0.[[024]]*)
-      _LT_TAGVAR(no_undefined_flag, $1)='${wl}-z,text'
-      _LT_TAGVAR(archive_cmds_need_lc, $1)=no
-      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
-      runpath_var='LD_RUN_PATH'
-
-      if test "$GCC" = yes; then
-	_LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
-	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
-      else
-	_LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
-	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
-      fi
-      ;;
-
-    sysv5* | sco3.2v5* | sco5v6*)
-      # Note: We can NOT use -z defs as we might desire, because we do not
-      # link with -lc, and that would cause any symbols used from libc to
-      # always be unresolved, which means just about no library would
-      # ever link correctly.  If we're not using GNU ld we use -z text
-      # though, which does catch some bad symbols but isn't as heavy-handed
-      # as -z defs.
-      _LT_TAGVAR(no_undefined_flag, $1)='${wl}-z,text'
-      _LT_TAGVAR(allow_undefined_flag, $1)='${wl}-z,nodefs'
-      _LT_TAGVAR(archive_cmds_need_lc, $1)=no
-      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
-      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R,$libdir'
-      _LT_TAGVAR(hardcode_libdir_separator, $1)=':'
-      _LT_TAGVAR(link_all_deplibs, $1)=yes
-      _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-Bexport'
-      runpath_var='LD_RUN_PATH'
-
-      if test "$GCC" = yes; then
-	_LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
-	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
-      else
-	_LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
-	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
-      fi
-      ;;
-
-    uts4*)
-      _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
-      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
-      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
-      ;;
-
-    *)
-      _LT_TAGVAR(ld_shlibs, $1)=no
-      ;;
-    esac
-
-    if test x$host_vendor = xsni; then
-      case $host in
-      sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
-	_LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-Blargedynsym'
-	;;
-      esac
-    fi
-  fi
-])
-AC_MSG_RESULT([$_LT_TAGVAR(ld_shlibs, $1)])
-test "$_LT_TAGVAR(ld_shlibs, $1)" = no && can_build_shared=no
-
-_LT_TAGVAR(with_gnu_ld, $1)=$with_gnu_ld
-
-_LT_DECL([], [libext], [0], [Old archive suffix (normally "a")])dnl
-_LT_DECL([], [shrext_cmds], [1], [Shared library suffix (normally ".so")])dnl
-_LT_DECL([], [extract_expsyms_cmds], [2],
-    [The commands to extract the exported symbol list from a shared archive])
-
-#
-# Do we need to explicitly link libc?
-#
-case "x$_LT_TAGVAR(archive_cmds_need_lc, $1)" in
-x|xyes)
-  # Assume -lc should be added
-  _LT_TAGVAR(archive_cmds_need_lc, $1)=yes
-
-  if test "$enable_shared" = yes && test "$GCC" = yes; then
-    case $_LT_TAGVAR(archive_cmds, $1) in
-    *'~'*)
-      # FIXME: we may have to deal with multi-command sequences.
-      ;;
-    '$CC '*)
-      # Test whether the compiler implicitly links with -lc since on some
-      # systems, -lgcc has to come before -lc. If gcc already passes -lc
-      # to ld, don't add -lc before -lgcc.
-      AC_MSG_CHECKING([whether -lc should be explicitly linked in])
-      $RM conftest*
-      echo "$lt_simple_compile_test_code" > conftest.$ac_ext
-
-      if AC_TRY_EVAL(ac_compile) 2>conftest.err; then
-        soname=conftest
-        lib=conftest
-        libobjs=conftest.$ac_objext
-        deplibs=
-        wl=$_LT_TAGVAR(lt_prog_compiler_wl, $1)
-	pic_flag=$_LT_TAGVAR(lt_prog_compiler_pic, $1)
-        compiler_flags=-v
-        linker_flags=-v
-        verstring=
-        output_objdir=.
-        libname=conftest
-        lt_save_allow_undefined_flag=$_LT_TAGVAR(allow_undefined_flag, $1)
-        _LT_TAGVAR(allow_undefined_flag, $1)=
-        if AC_TRY_EVAL(_LT_TAGVAR(archive_cmds, $1) 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1)
-        then
-	  _LT_TAGVAR(archive_cmds_need_lc, $1)=no
-        else
-	  _LT_TAGVAR(archive_cmds_need_lc, $1)=yes
-        fi
-        _LT_TAGVAR(allow_undefined_flag, $1)=$lt_save_allow_undefined_flag
-      else
-        cat conftest.err 1>&5
-      fi
-      $RM conftest*
-      AC_MSG_RESULT([$_LT_TAGVAR(archive_cmds_need_lc, $1)])
-      ;;
-    esac
-  fi
-  ;;
-esac
-
-_LT_TAGDECL([build_libtool_need_lc], [archive_cmds_need_lc], [0],
-    [Whether or not to add -lc for building shared libraries])
-_LT_TAGDECL([allow_libtool_libs_with_static_runtimes],
-    [enable_shared_with_static_runtimes], [0],
-    [Whether or not to disallow shared libs when runtime libs are static])
-_LT_TAGDECL([], [export_dynamic_flag_spec], [1],
-    [Compiler flag to allow reflexive dlopens])
-_LT_TAGDECL([], [whole_archive_flag_spec], [1],
-    [Compiler flag to generate shared objects directly from archives])
-_LT_TAGDECL([], [compiler_needs_object], [1],
-    [Whether the compiler copes with passing no objects directly])
-_LT_TAGDECL([], [old_archive_from_new_cmds], [2],
-    [Create an old-style archive from a shared archive])
-_LT_TAGDECL([], [old_archive_from_expsyms_cmds], [2],
-    [Create a temporary old-style archive to link instead of a shared archive])
-_LT_TAGDECL([], [archive_cmds], [2], [Commands used to build a shared archive])
-_LT_TAGDECL([], [archive_expsym_cmds], [2])
-_LT_TAGDECL([], [module_cmds], [2],
-    [Commands used to build a loadable module if different from building
-    a shared archive.])
-_LT_TAGDECL([], [module_expsym_cmds], [2])
-_LT_TAGDECL([], [with_gnu_ld], [1],
-    [Whether we are building with GNU ld or not])
-_LT_TAGDECL([], [allow_undefined_flag], [1],
-    [Flag that allows shared libraries with undefined symbols to be built])
-_LT_TAGDECL([], [no_undefined_flag], [1],
-    [Flag that enforces no undefined symbols])
-_LT_TAGDECL([], [hardcode_libdir_flag_spec], [1],
-    [Flag to hardcode $libdir into a binary during linking.
-    This must work even if $libdir does not exist])
-_LT_TAGDECL([], [hardcode_libdir_flag_spec_ld], [1],
-    [[If ld is used when linking, flag to hardcode $libdir into a binary
-    during linking.  This must work even if $libdir does not exist]])
-_LT_TAGDECL([], [hardcode_libdir_separator], [1],
-    [Whether we need a single "-rpath" flag with a separated argument])
-_LT_TAGDECL([], [hardcode_direct], [0],
-    [Set to "yes" if using DIR/libNAME${shared_ext} during linking hardcodes
-    DIR into the resulting binary])
-_LT_TAGDECL([], [hardcode_direct_absolute], [0],
-    [Set to "yes" if using DIR/libNAME${shared_ext} during linking hardcodes
-    DIR into the resulting binary and the resulting library dependency is
-    "absolute", i.e impossible to change by setting ${shlibpath_var} if the
-    library is relocated])
-_LT_TAGDECL([], [hardcode_minus_L], [0],
-    [Set to "yes" if using the -LDIR flag during linking hardcodes DIR
-    into the resulting binary])
-_LT_TAGDECL([], [hardcode_shlibpath_var], [0],
-    [Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
-    into the resulting binary])
-_LT_TAGDECL([], [hardcode_automatic], [0],
-    [Set to "yes" if building a shared library automatically hardcodes DIR
-    into the library and all subsequent libraries and executables linked
-    against it])
-_LT_TAGDECL([], [inherit_rpath], [0],
-    [Set to yes if linker adds runtime paths of dependent libraries
-    to runtime path list])
-_LT_TAGDECL([], [link_all_deplibs], [0],
-    [Whether libtool must link a program against all its dependency libraries])
-_LT_TAGDECL([], [fix_srcfile_path], [1],
-    [Fix the shell variable $srcfile for the compiler])
-_LT_TAGDECL([], [always_export_symbols], [0],
-    [Set to "yes" if exported symbols are required])
-_LT_TAGDECL([], [export_symbols_cmds], [2],
-    [The commands to list exported symbols])
-_LT_TAGDECL([], [exclude_expsyms], [1],
-    [Symbols that should not be listed in the preloaded symbols])
-_LT_TAGDECL([], [include_expsyms], [1],
-    [Symbols that must always be exported])
-_LT_TAGDECL([], [prelink_cmds], [2],
-    [Commands necessary for linking programs (against libraries) with templates])
-_LT_TAGDECL([], [file_list_spec], [1],
-    [Specify filename containing input files])
-dnl FIXME: Not yet implemented
-dnl _LT_TAGDECL([], [thread_safe_flag_spec], [1],
-dnl    [Compiler flag to generate thread safe objects])
-])# _LT_LINKER_SHLIBS
-
-
-# _LT_LANG_C_CONFIG([TAG])
-# ------------------------
-# Ensure that the configuration variables for a C compiler are suitably
-# defined.  These variables are subsequently used by _LT_CONFIG to write
-# the compiler configuration to `libtool'.
-m4_defun([_LT_LANG_C_CONFIG],
-[m4_require([_LT_DECL_EGREP])dnl
-lt_save_CC="$CC"
-AC_LANG_PUSH(C)
-
-# Source file extension for C test sources.
-ac_ext=c
-
-# Object file extension for compiled C test sources.
-objext=o
-_LT_TAGVAR(objext, $1)=$objext
-
-# Code to be used in simple compile tests
-lt_simple_compile_test_code="int some_variable = 0;"
-
-# Code to be used in simple link tests
-lt_simple_link_test_code='int main(){return(0);}'
-
-_LT_TAG_COMPILER
-# Save the default compiler, since it gets overwritten when the other
-# tags are being tested, and _LT_TAGVAR(compiler, []) is a NOP.
-compiler_DEFAULT=$CC
-
-# save warnings/boilerplate of simple test code
-_LT_COMPILER_BOILERPLATE
-_LT_LINKER_BOILERPLATE
-
-if test -n "$compiler"; then
-  _LT_COMPILER_NO_RTTI($1)
-  _LT_COMPILER_PIC($1)
-  _LT_COMPILER_C_O($1)
-  _LT_COMPILER_FILE_LOCKS($1)
-  _LT_LINKER_SHLIBS($1)
-  _LT_SYS_DYNAMIC_LINKER($1)
-  _LT_LINKER_HARDCODE_LIBPATH($1)
-  LT_SYS_DLOPEN_SELF
-  _LT_CMD_STRIPLIB
-
-  # Report which library types will actually be built
-  AC_MSG_CHECKING([if libtool supports shared libraries])
-  AC_MSG_RESULT([$can_build_shared])
-
-  AC_MSG_CHECKING([whether to build shared libraries])
-  test "$can_build_shared" = "no" && enable_shared=no
-
-  # On AIX, shared libraries and static libraries use the same namespace, and
-  # are all built from PIC.
-  case $host_os in
-  aix3*)
-    test "$enable_shared" = yes && enable_static=no
-    if test -n "$RANLIB"; then
-      archive_cmds="$archive_cmds~\$RANLIB \$lib"
-      postinstall_cmds='$RANLIB $lib'
-    fi
-    ;;
-
-  aix[[4-9]]*)
-    if test "$host_cpu" != ia64 && test "$aix_use_runtimelinking" = no ; then
-      test "$enable_shared" = yes && enable_static=no
-    fi
-    ;;
-  esac
-  AC_MSG_RESULT([$enable_shared])
-
-  AC_MSG_CHECKING([whether to build static libraries])
-  # Make sure either enable_shared or enable_static is yes.
-  test "$enable_shared" = yes || enable_static=yes
-  AC_MSG_RESULT([$enable_static])
-
-  _LT_CONFIG($1)
-fi
-AC_LANG_POP
-CC="$lt_save_CC"
-])# _LT_LANG_C_CONFIG
-
-
-# _LT_PROG_CXX
-# ------------
-# Since AC_PROG_CXX is broken, in that it returns g++ if there is no c++
-# compiler, we have our own version here.
-m4_defun([_LT_PROG_CXX],
-[
-pushdef([AC_MSG_ERROR], [_lt_caught_CXX_error=yes])
-AC_PROG_CXX
-if test -n "$CXX" && ( test "X$CXX" != "Xno" &&
-    ( (test "X$CXX" = "Xg++" && `g++ -v >/dev/null 2>&1` ) ||
-    (test "X$CXX" != "Xg++"))) ; then
-  AC_PROG_CXXCPP
-else
-  _lt_caught_CXX_error=yes
-fi
-popdef([AC_MSG_ERROR])
-])# _LT_PROG_CXX
-
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([_LT_PROG_CXX], [])
-
-
-# _LT_LANG_CXX_CONFIG([TAG])
-# --------------------------
-# Ensure that the configuration variables for a C++ compiler are suitably
-# defined.  These variables are subsequently used by _LT_CONFIG to write
-# the compiler configuration to `libtool'.
-m4_defun([_LT_LANG_CXX_CONFIG],
-[AC_REQUIRE([_LT_PROG_CXX])dnl
-m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-m4_require([_LT_DECL_EGREP])dnl
-
-AC_LANG_PUSH(C++)
-_LT_TAGVAR(archive_cmds_need_lc, $1)=no
-_LT_TAGVAR(allow_undefined_flag, $1)=
-_LT_TAGVAR(always_export_symbols, $1)=no
-_LT_TAGVAR(archive_expsym_cmds, $1)=
-_LT_TAGVAR(compiler_needs_object, $1)=no
-_LT_TAGVAR(export_dynamic_flag_spec, $1)=
-_LT_TAGVAR(hardcode_direct, $1)=no
-_LT_TAGVAR(hardcode_direct_absolute, $1)=no
-_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
-_LT_TAGVAR(hardcode_libdir_flag_spec_ld, $1)=
-_LT_TAGVAR(hardcode_libdir_separator, $1)=
-_LT_TAGVAR(hardcode_minus_L, $1)=no
-_LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
-_LT_TAGVAR(hardcode_automatic, $1)=no
-_LT_TAGVAR(inherit_rpath, $1)=no
-_LT_TAGVAR(module_cmds, $1)=
-_LT_TAGVAR(module_expsym_cmds, $1)=
-_LT_TAGVAR(link_all_deplibs, $1)=unknown
-_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
-_LT_TAGVAR(no_undefined_flag, $1)=
-_LT_TAGVAR(whole_archive_flag_spec, $1)=
-_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
-
-# Source file extension for C++ test sources.
-ac_ext=cpp
-
-# Object file extension for compiled C++ test sources.
-objext=o
-_LT_TAGVAR(objext, $1)=$objext
-
-# No sense in running all these tests if we already determined that
-# the CXX compiler isn't working.  Some variables (like enable_shared)
-# are currently assumed to apply to all compilers on this platform,
-# and will be corrupted by setting them based on a non-working compiler.
-if test "$_lt_caught_CXX_error" != yes; then
-  # Code to be used in simple compile tests
-  lt_simple_compile_test_code="int some_variable = 0;"
-
-  # Code to be used in simple link tests
-  lt_simple_link_test_code='int main(int, char *[[]]) { return(0); }'
-
-  # ltmain only uses $CC for tagged configurations so make sure $CC is set.
-  _LT_TAG_COMPILER
-
-  # save warnings/boilerplate of simple test code
-  _LT_COMPILER_BOILERPLATE
-  _LT_LINKER_BOILERPLATE
-
-  # Allow CC to be a program name with arguments.
-  lt_save_CC=$CC
-  lt_save_LD=$LD
-  lt_save_GCC=$GCC
-  GCC=$GXX
-  lt_save_with_gnu_ld=$with_gnu_ld
-  lt_save_path_LD=$lt_cv_path_LD
-  if test -n "${lt_cv_prog_gnu_ldcxx+set}"; then
-    lt_cv_prog_gnu_ld=$lt_cv_prog_gnu_ldcxx
-  else
-    $as_unset lt_cv_prog_gnu_ld
-  fi
-  if test -n "${lt_cv_path_LDCXX+set}"; then
-    lt_cv_path_LD=$lt_cv_path_LDCXX
-  else
-    $as_unset lt_cv_path_LD
-  fi
-  test -z "${LDCXX+set}" || LD=$LDCXX
-  CC=${CXX-"c++"}
-  compiler=$CC
-  _LT_TAGVAR(compiler, $1)=$CC
-  _LT_CC_BASENAME([$compiler])
-
-  if test -n "$compiler"; then
-    # We don't want -fno-exception when compiling C++ code, so set the
-    # no_builtin_flag separately
-    if test "$GXX" = yes; then
-      _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin'
-    else
-      _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=
-    fi
-
-    if test "$GXX" = yes; then
-      # Set up default GNU C++ configuration
-
-      LT_PATH_LD
-
-      # Check if GNU C++ uses GNU ld as the underlying linker, since the
-      # archiving commands below assume that GNU ld is being used.
-      if test "$with_gnu_ld" = yes; then
-        _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
-        _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
-
-        _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
-        _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
-
-        # If archive_cmds runs LD, not CC, wlarc should be empty
-        # XXX I think wlarc can be eliminated in ltcf-cxx, but I need to
-        #     investigate it a little bit more. (MM)
-        wlarc='${wl}'
-
-        # ancient GNU ld didn't support --whole-archive et. al.
-        if eval "`$CC -print-prog-name=ld` --help 2>&1" |
-	  $GREP 'no-whole-archive' > /dev/null; then
-          _LT_TAGVAR(whole_archive_flag_spec, $1)="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
-        else
-          _LT_TAGVAR(whole_archive_flag_spec, $1)=
-        fi
-      else
-        with_gnu_ld=no
-        wlarc=
-
-        # A generic and very simple default shared library creation
-        # command for GNU C++ for the case where it uses the native
-        # linker, instead of GNU ld.  If possible, this setting should
-        # overridden to take advantage of the native linker features on
-        # the platform it is being used on.
-        _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
-      fi
-
-      # Commands to make compiler produce verbose output that lists
-      # what "hidden" libraries, object files and flags are used when
-      # linking a shared library.
-      output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "\-L"'
-
-    else
-      GXX=no
-      with_gnu_ld=no
-      wlarc=
-    fi
-
-    # PORTME: fill in a description of your system's C++ link characteristics
-    AC_MSG_CHECKING([whether the $compiler linker ($LD) supports shared libraries])
-    _LT_TAGVAR(ld_shlibs, $1)=yes
-    case $host_os in
-      aix3*)
-        # FIXME: insert proper C++ library support
-        _LT_TAGVAR(ld_shlibs, $1)=no
-        ;;
-      aix[[4-9]]*)
-        if test "$host_cpu" = ia64; then
-          # On IA64, the linker does run time linking by default, so we don't
-          # have to do anything special.
-          aix_use_runtimelinking=no
-          exp_sym_flag='-Bexport'
-          no_entry_flag=""
-        else
-          aix_use_runtimelinking=no
-
-          # Test if we are trying to use run time linking or normal
-          # AIX style linking. If -brtl is somewhere in LDFLAGS, we
-          # need to do runtime linking.
-          case $host_os in aix4.[[23]]|aix4.[[23]].*|aix[[5-9]]*)
-	    for ld_flag in $LDFLAGS; do
-	      case $ld_flag in
-	      *-brtl*)
-	        aix_use_runtimelinking=yes
-	        break
-	        ;;
-	      esac
-	    done
-	    ;;
-          esac
-
-          exp_sym_flag='-bexport'
-          no_entry_flag='-bnoentry'
-        fi
-
-        # When large executables or shared objects are built, AIX ld can
-        # have problems creating the table of contents.  If linking a library
-        # or program results in "error TOC overflow" add -mminimal-toc to
-        # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
-        # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
-
-        _LT_TAGVAR(archive_cmds, $1)=''
-        _LT_TAGVAR(hardcode_direct, $1)=yes
-        _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
-        _LT_TAGVAR(hardcode_libdir_separator, $1)=':'
-        _LT_TAGVAR(link_all_deplibs, $1)=yes
-        _LT_TAGVAR(file_list_spec, $1)='${wl}-f,'
-
-        if test "$GXX" = yes; then
-          case $host_os in aix4.[[012]]|aix4.[[012]].*)
-          # We only want to do this on AIX 4.2 and lower, the check
-          # below for broken collect2 doesn't work under 4.3+
-	  collect2name=`${CC} -print-prog-name=collect2`
-	  if test -f "$collect2name" &&
-	     strings "$collect2name" | $GREP resolve_lib_name >/dev/null
-	  then
-	    # We have reworked collect2
-	    :
-	  else
-	    # We have old collect2
-	    _LT_TAGVAR(hardcode_direct, $1)=unsupported
-	    # It fails to find uninstalled libraries when the uninstalled
-	    # path is not listed in the libpath.  Setting hardcode_minus_L
-	    # to unsupported forces relinking
-	    _LT_TAGVAR(hardcode_minus_L, $1)=yes
-	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
-	    _LT_TAGVAR(hardcode_libdir_separator, $1)=
-	  fi
-          esac
-          shared_flag='-shared'
-	  if test "$aix_use_runtimelinking" = yes; then
-	    shared_flag="$shared_flag "'${wl}-G'
-	  fi
-        else
-          # not using gcc
-          if test "$host_cpu" = ia64; then
-	  # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
-	  # chokes on -Wl,-G. The following line is correct:
-	  shared_flag='-G'
-          else
-	    if test "$aix_use_runtimelinking" = yes; then
-	      shared_flag='${wl}-G'
-	    else
-	      shared_flag='${wl}-bM:SRE'
-	    fi
-          fi
-        fi
-
-        _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-bexpall'
-        # It seems that -bexpall does not export symbols beginning with
-        # underscore (_), so it is better to generate a list of symbols to
-	# export.
-        _LT_TAGVAR(always_export_symbols, $1)=yes
-        if test "$aix_use_runtimelinking" = yes; then
-          # Warning - without using the other runtime loading flags (-brtl),
-          # -berok will link without error, but may produce a broken library.
-          _LT_TAGVAR(allow_undefined_flag, $1)='-berok'
-          # Determine the default libpath from the value encoded in an empty
-          # executable.
-          _LT_SYS_MODULE_PATH_AIX
-          _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-blibpath:$libdir:'"$aix_libpath"
-
-          _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then $ECHO "X${wl}${allow_undefined_flag}" | $Xsed; else :; fi` '"\${wl}$exp_sym_flag:\$export_symbols $shared_flag"
-        else
-          if test "$host_cpu" = ia64; then
-	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R $libdir:/usr/lib:/lib'
-	    _LT_TAGVAR(allow_undefined_flag, $1)="-z nodefs"
-	    _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$exp_sym_flag:\$export_symbols"
-          else
-	    # Determine the default libpath from the value encoded in an
-	    # empty executable.
-	    _LT_SYS_MODULE_PATH_AIX
-	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-blibpath:$libdir:'"$aix_libpath"
-	    # Warning - without using the other run time loading flags,
-	    # -berok will link without error, but may produce a broken library.
-	    _LT_TAGVAR(no_undefined_flag, $1)=' ${wl}-bernotok'
-	    _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-berok'
-	    # Exported symbols can be pulled into shared objects from archives
-	    _LT_TAGVAR(whole_archive_flag_spec, $1)='$convenience'
-	    _LT_TAGVAR(archive_cmds_need_lc, $1)=yes
-	    # This is similar to how AIX traditionally builds its shared
-	    # libraries.
-	    _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs ${wl}-bnoentry $compiler_flags ${wl}-bE:$export_symbols${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname'
-          fi
-        fi
-        ;;
-
-      beos*)
-	if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
-	  _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
-	  # Joseph Beckenbach <jrb3@best.com> says some releases of gcc
-	  # support --undefined.  This deserves some investigation.  FIXME
-	  _LT_TAGVAR(archive_cmds, $1)='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
-	else
-	  _LT_TAGVAR(ld_shlibs, $1)=no
-	fi
-	;;
-
-      chorus*)
-        case $cc_basename in
-          *)
-	  # FIXME: insert proper C++ library support
-	  _LT_TAGVAR(ld_shlibs, $1)=no
-	  ;;
-        esac
-        ;;
-
-      cygwin* | mingw* | pw32* | cegcc*)
-        # _LT_TAGVAR(hardcode_libdir_flag_spec, $1) is actually meaningless,
-        # as there is no search path for DLLs.
-        _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
-        _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
-        _LT_TAGVAR(always_export_symbols, $1)=no
-        _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
-
-        if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
-          _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
-          # If the export-symbols file already is a .def file (1st line
-          # is EXPORTS), use it as is; otherwise, prepend...
-          _LT_TAGVAR(archive_expsym_cmds, $1)='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
-	    cp $export_symbols $output_objdir/$soname.def;
-          else
-	    echo EXPORTS > $output_objdir/$soname.def;
-	    cat $export_symbols >> $output_objdir/$soname.def;
-          fi~
-          $CC -shared -nostdlib $output_objdir/$soname.def $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
-        else
-          _LT_TAGVAR(ld_shlibs, $1)=no
-        fi
-        ;;
-      darwin* | rhapsody*)
-        _LT_DARWIN_LINKER_FEATURES($1)
-	;;
-
-      dgux*)
-        case $cc_basename in
-          ec++*)
-	    # FIXME: insert proper C++ library support
-	    _LT_TAGVAR(ld_shlibs, $1)=no
-	    ;;
-          ghcx*)
-	    # Green Hills C++ Compiler
-	    # FIXME: insert proper C++ library support
-	    _LT_TAGVAR(ld_shlibs, $1)=no
-	    ;;
-          *)
-	    # FIXME: insert proper C++ library support
-	    _LT_TAGVAR(ld_shlibs, $1)=no
-	    ;;
-        esac
-        ;;
-
-      freebsd[[12]]*)
-        # C++ shared libraries reported to be fairly broken before
-	# switch to ELF
-        _LT_TAGVAR(ld_shlibs, $1)=no
-        ;;
-
-      freebsd-elf*)
-        _LT_TAGVAR(archive_cmds_need_lc, $1)=no
-        ;;
-
-      freebsd* | dragonfly*)
-        # FreeBSD 3 and later use GNU C++ and GNU ld with standard ELF
-        # conventions
-        _LT_TAGVAR(ld_shlibs, $1)=yes
-        ;;
-
-      gnu*)
-        ;;
-
-      hpux9*)
-        _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
-        _LT_TAGVAR(hardcode_libdir_separator, $1)=:
-        _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
-        _LT_TAGVAR(hardcode_direct, $1)=yes
-        _LT_TAGVAR(hardcode_minus_L, $1)=yes # Not in the search PATH,
-				             # but as the default
-				             # location of the library.
-
-        case $cc_basename in
-          CC*)
-            # FIXME: insert proper C++ library support
-            _LT_TAGVAR(ld_shlibs, $1)=no
-            ;;
-          aCC*)
-            _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -b ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
-            # Commands to make compiler produce verbose output that lists
-            # what "hidden" libraries, object files and flags are used when
-            # linking a shared library.
-            #
-            # There doesn't appear to be a way to prevent this compiler from
-            # explicitly linking system object files so we need to strip them
-            # from the output so that they don't get included in the library
-            # dependencies.
-            output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $EGREP "\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; $ECHO "X$list" | $Xsed'
-            ;;
-          *)
-            if test "$GXX" = yes; then
-              _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -shared -nostdlib -fPIC ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
-            else
-              # FIXME: insert proper C++ library support
-              _LT_TAGVAR(ld_shlibs, $1)=no
-            fi
-            ;;
-        esac
-        ;;
-
-      hpux10*|hpux11*)
-        if test $with_gnu_ld = no; then
-	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
-	  _LT_TAGVAR(hardcode_libdir_separator, $1)=:
-
-          case $host_cpu in
-            hppa*64*|ia64*)
-              ;;
-            *)
-	      _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
-              ;;
-          esac
-        fi
-        case $host_cpu in
-          hppa*64*|ia64*)
-            _LT_TAGVAR(hardcode_direct, $1)=no
-            _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
-            ;;
-          *)
-            _LT_TAGVAR(hardcode_direct, $1)=yes
-            _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
-            _LT_TAGVAR(hardcode_minus_L, $1)=yes # Not in the search PATH,
-					         # but as the default
-					         # location of the library.
-            ;;
-        esac
-
-        case $cc_basename in
-          CC*)
-	    # FIXME: insert proper C++ library support
-	    _LT_TAGVAR(ld_shlibs, $1)=no
-	    ;;
-          aCC*)
-	    case $host_cpu in
-	      hppa*64*)
-	        _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
-	        ;;
-	      ia64*)
-	        _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
-	        ;;
-	      *)
-	        _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
-	        ;;
-	    esac
-	    # Commands to make compiler produce verbose output that lists
-	    # what "hidden" libraries, object files and flags are used when
-	    # linking a shared library.
-	    #
-	    # There doesn't appear to be a way to prevent this compiler from
-	    # explicitly linking system object files so we need to strip them
-	    # from the output so that they don't get included in the library
-	    # dependencies.
-	    output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $GREP "\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; $ECHO "X$list" | $Xsed'
-	    ;;
-          *)
-	    if test "$GXX" = yes; then
-	      if test $with_gnu_ld = no; then
-	        case $host_cpu in
-	          hppa*64*)
-	            _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
-	            ;;
-	          ia64*)
-	            _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
-	            ;;
-	          *)
-	            _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
-	            ;;
-	        esac
-	      fi
-	    else
-	      # FIXME: insert proper C++ library support
-	      _LT_TAGVAR(ld_shlibs, $1)=no
-	    fi
-	    ;;
-        esac
-        ;;
-
-      interix[[3-9]]*)
-	_LT_TAGVAR(hardcode_direct, $1)=no
-	_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
-	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
-	_LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
-	# Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
-	# Instead, shared libraries are loaded at an image base (0x10000000 by
-	# default) and relocated if they conflict, which is a slow very memory
-	# consuming and fragmenting process.  To avoid this, we pick a random,
-	# 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
-	# time.  Moving up from 0x10000000 also allows more sbrk(2) space.
-	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
-	_LT_TAGVAR(archive_expsym_cmds, $1)='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
-	;;
-      irix5* | irix6*)
-        case $cc_basename in
-          CC*)
-	    # SGI C++
-	    _LT_TAGVAR(archive_cmds, $1)='$CC -shared -all -multigot $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -soname $soname `test -n "$verstring" && $ECHO "X-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -o $lib'
-
-	    # Archives containing C++ object files must be created using
-	    # "CC -ar", where "CC" is the IRIX C++ compiler.  This is
-	    # necessary to make sure instantiated templates are included
-	    # in the archive.
-	    _LT_TAGVAR(old_archive_cmds, $1)='$CC -ar -WR,-u -o $oldlib $oldobjs'
-	    ;;
-          *)
-	    if test "$GXX" = yes; then
-	      if test "$with_gnu_ld" = no; then
-	        _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && $ECHO "X${wl}-set_version ${wl}$verstring" | $Xsed` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
-	      else
-	        _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && $ECHO "X${wl}-set_version ${wl}$verstring" | $Xsed` -o $lib'
-	      fi
-	    fi
-	    _LT_TAGVAR(link_all_deplibs, $1)=yes
-	    ;;
-        esac
-        _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
-        _LT_TAGVAR(hardcode_libdir_separator, $1)=:
-        _LT_TAGVAR(inherit_rpath, $1)=yes
-        ;;
-
-      linux* | k*bsd*-gnu | kopensolaris*-gnu)
-        case $cc_basename in
-          KCC*)
-	    # Kuck and Associates, Inc. (KAI) C++ Compiler
-
-	    # KCC will only create a shared library if the output file
-	    # ends with ".so" (or ".sl" for HP-UX), so rename the library
-	    # to its proper name (with version) after linking.
-	    _LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
-	    _LT_TAGVAR(archive_expsym_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib ${wl}-retain-symbols-file,$export_symbols; mv \$templib $lib'
-	    # Commands to make compiler produce verbose output that lists
-	    # what "hidden" libraries, object files and flags are used when
-	    # linking a shared library.
-	    #
-	    # There doesn't appear to be a way to prevent this compiler from
-	    # explicitly linking system object files so we need to strip them
-	    # from the output so that they don't get included in the library
-	    # dependencies.
-	    output_verbose_link_cmd='templist=`$CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 | $GREP "ld"`; rm -f libconftest$shared_ext; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; $ECHO "X$list" | $Xsed'
-
-	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
-	    _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
-
-	    # Archives containing C++ object files must be created using
-	    # "CC -Bstatic", where "CC" is the KAI C++ compiler.
-	    _LT_TAGVAR(old_archive_cmds, $1)='$CC -Bstatic -o $oldlib $oldobjs'
-	    ;;
-	  icpc* | ecpc* )
-	    # Intel C++
-	    with_gnu_ld=yes
-	    # version 8.0 and above of icpc choke on multiply defined symbols
-	    # if we add $predep_objects and $postdep_objects, however 7.1 and
-	    # earlier do not add the objects themselves.
-	    case `$CC -V 2>&1` in
-	      *"Version 7."*)
-	        _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
-		_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
-		;;
-	      *)  # Version 8.0 or newer
-	        tmp_idyn=
-	        case $host_cpu in
-		  ia64*) tmp_idyn=' -i_dynamic';;
-		esac
-	        _LT_TAGVAR(archive_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
-		_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
-		;;
-	    esac
-	    _LT_TAGVAR(archive_cmds_need_lc, $1)=no
-	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
-	    _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
-	    _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive$convenience ${wl}--no-whole-archive'
-	    ;;
-          pgCC* | pgcpp*)
-            # Portland Group C++ compiler
-	    case `$CC -V` in
-	    *pgCC\ [[1-5]]* | *pgcpp\ [[1-5]]*)
-	      _LT_TAGVAR(prelink_cmds, $1)='tpldir=Template.dir~
-		rm -rf $tpldir~
-		$CC --prelink_objects --instantiation_dir $tpldir $objs $libobjs $compile_deplibs~
-		compile_command="$compile_command `find $tpldir -name \*.o | $NL2SP`"'
-	      _LT_TAGVAR(old_archive_cmds, $1)='tpldir=Template.dir~
-		rm -rf $tpldir~
-		$CC --prelink_objects --instantiation_dir $tpldir $oldobjs$old_deplibs~
-		$AR $AR_FLAGS $oldlib$oldobjs$old_deplibs `find $tpldir -name \*.o | $NL2SP`~
-		$RANLIB $oldlib'
-	      _LT_TAGVAR(archive_cmds, $1)='tpldir=Template.dir~
-		rm -rf $tpldir~
-		$CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
-		$CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname -o $lib'
-	      _LT_TAGVAR(archive_expsym_cmds, $1)='tpldir=Template.dir~
-		rm -rf $tpldir~
-		$CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
-		$CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname ${wl}-retain-symbols-file ${wl}$export_symbols -o $lib'
-	      ;;
-	    *) # Version 6 will use weak symbols
-	      _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname -o $lib'
-	      _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname ${wl}-retain-symbols-file ${wl}$export_symbols -o $lib'
-	      ;;
-	    esac
-
-	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}--rpath ${wl}$libdir'
-	    _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
-	    _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; $ECHO \"$new_convenience\"` ${wl}--no-whole-archive'
-            ;;
-	  cxx*)
-	    # Compaq C++
-	    _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
-	    _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname  -o $lib ${wl}-retain-symbols-file $wl$export_symbols'
-
-	    runpath_var=LD_RUN_PATH
-	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir'
-	    _LT_TAGVAR(hardcode_libdir_separator, $1)=:
-
-	    # Commands to make compiler produce verbose output that lists
-	    # what "hidden" libraries, object files and flags are used when
-	    # linking a shared library.
-	    #
-	    # There doesn't appear to be a way to prevent this compiler from
-	    # explicitly linking system object files so we need to strip them
-	    # from the output so that they don't get included in the library
-	    # dependencies.
-	    output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld"`; templist=`$ECHO "X$templist" | $Xsed -e "s/\(^.*ld.*\)\( .*ld .*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; $ECHO "X$list" | $Xsed'
-	    ;;
-	  xl*)
-	    # IBM XL 8.0 on PPC, with GNU ld
-	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
-	    _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
-	    _LT_TAGVAR(archive_cmds, $1)='$CC -qmkshrobj $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
-	    if test "x$supports_anon_versioning" = xyes; then
-	      _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~
-		cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
-		echo "local: *; };" >> $output_objdir/$libname.ver~
-		$CC -qmkshrobj $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-version-script ${wl}$output_objdir/$libname.ver -o $lib'
-	    fi
-	    ;;
-	  *)
-	    case `$CC -V 2>&1 | sed 5q` in
-	    *Sun\ C*)
-	      # Sun C++ 5.9
-	      _LT_TAGVAR(no_undefined_flag, $1)=' -zdefs'
-	      _LT_TAGVAR(archive_cmds, $1)='$CC -G${allow_undefined_flag} -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
-	      _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G${allow_undefined_flag} -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-retain-symbols-file ${wl}$export_symbols'
-	      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
-	      _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; $ECHO \"$new_convenience\"` ${wl}--no-whole-archive'
-	      _LT_TAGVAR(compiler_needs_object, $1)=yes
-
-	      # Not sure whether something based on
-	      # $CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1
-	      # would be better.
-	      output_verbose_link_cmd='echo'
-
-	      # Archives containing C++ object files must be created using
-	      # "CC -xar", where "CC" is the Sun C++ compiler.  This is
-	      # necessary to make sure instantiated templates are included
-	      # in the archive.
-	      _LT_TAGVAR(old_archive_cmds, $1)='$CC -xar -o $oldlib $oldobjs'
-	      ;;
-	    esac
-	    ;;
-	esac
-	;;
-
-      lynxos*)
-        # FIXME: insert proper C++ library support
-	_LT_TAGVAR(ld_shlibs, $1)=no
-	;;
-
-      m88k*)
-        # FIXME: insert proper C++ library support
-        _LT_TAGVAR(ld_shlibs, $1)=no
-	;;
-
-      mvs*)
-        case $cc_basename in
-          cxx*)
-	    # FIXME: insert proper C++ library support
-	    _LT_TAGVAR(ld_shlibs, $1)=no
-	    ;;
-	  *)
-	    # FIXME: insert proper C++ library support
-	    _LT_TAGVAR(ld_shlibs, $1)=no
-	    ;;
-	esac
-	;;
-
-      netbsd*)
-        if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
-	  _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable  -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags'
-	  wlarc=
-	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
-	  _LT_TAGVAR(hardcode_direct, $1)=yes
-	  _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
-	fi
-	# Workaround some broken pre-1.5 toolchains
-	output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP conftest.$objext | $SED -e "s:-lgcc -lc -lgcc::"'
-	;;
-
-      *nto* | *qnx*)
-        _LT_TAGVAR(ld_shlibs, $1)=yes
-	;;
-
-      openbsd2*)
-        # C++ shared libraries are fairly broken
-	_LT_TAGVAR(ld_shlibs, $1)=no
-	;;
-
-      openbsd*)
-	if test -f /usr/libexec/ld.so; then
-	  _LT_TAGVAR(hardcode_direct, $1)=yes
-	  _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
-	  _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
-	  _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
-	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
-	  if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
-	    _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-retain-symbols-file,$export_symbols -o $lib'
-	    _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
-	    _LT_TAGVAR(whole_archive_flag_spec, $1)="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
-	  fi
-	  output_verbose_link_cmd=echo
-	else
-	  _LT_TAGVAR(ld_shlibs, $1)=no
-	fi
-	;;
-
-      osf3* | osf4* | osf5*)
-        case $cc_basename in
-          KCC*)
-	    # Kuck and Associates, Inc. (KAI) C++ Compiler
-
-	    # KCC will only create a shared library if the output file
-	    # ends with ".so" (or ".sl" for HP-UX), so rename the library
-	    # to its proper name (with version) after linking.
-	    _LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo "$lib" | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
-
-	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
-	    _LT_TAGVAR(hardcode_libdir_separator, $1)=:
-
-	    # Archives containing C++ object files must be created using
-	    # the KAI C++ compiler.
-	    case $host in
-	      osf3*) _LT_TAGVAR(old_archive_cmds, $1)='$CC -Bstatic -o $oldlib $oldobjs' ;;
-	      *) _LT_TAGVAR(old_archive_cmds, $1)='$CC -o $oldlib $oldobjs' ;;
-	    esac
-	    ;;
-          RCC*)
-	    # Rational C++ 2.4.1
-	    # FIXME: insert proper C++ library support
-	    _LT_TAGVAR(ld_shlibs, $1)=no
-	    ;;
-          cxx*)
-	    case $host in
-	      osf3*)
-	        _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*'
-	        _LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $soname `test -n "$verstring" && $ECHO "X${wl}-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -o $lib'
-	        _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
-		;;
-	      *)
-	        _LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*'
-	        _LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname `test -n "$verstring" && $ECHO "X-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -o $lib'
-	        _LT_TAGVAR(archive_expsym_cmds, $1)='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done~
-	          echo "-hidden">> $lib.exp~
-	          $CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname ${wl}-input ${wl}$lib.exp  `test -n "$verstring" && $ECHO "X-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -o $lib~
-	          $RM $lib.exp'
-	        _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir'
-		;;
-	    esac
-
-	    _LT_TAGVAR(hardcode_libdir_separator, $1)=:
-
-	    # Commands to make compiler produce verbose output that lists
-	    # what "hidden" libraries, object files and flags are used when
-	    # linking a shared library.
-	    #
-	    # There doesn't appear to be a way to prevent this compiler from
-	    # explicitly linking system object files so we need to strip them
-	    # from the output so that they don't get included in the library
-	    # dependencies.
-	    output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld" | $GREP -v "ld:"`; templist=`$ECHO "X$templist" | $Xsed -e "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; $ECHO "X$list" | $Xsed'
-	    ;;
-	  *)
-	    if test "$GXX" = yes && test "$with_gnu_ld" = no; then
-	      _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*'
-	      case $host in
-	        osf3*)
-	          _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib ${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && $ECHO "X${wl}-set_version ${wl}$verstring" | $Xsed` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
-		  ;;
-	        *)
-	          _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib ${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && $ECHO "${wl}-set_version ${wl}$verstring" | $Xsed` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
-		  ;;
-	      esac
-
-	      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
-	      _LT_TAGVAR(hardcode_libdir_separator, $1)=:
-
-	      # Commands to make compiler produce verbose output that lists
-	      # what "hidden" libraries, object files and flags are used when
-	      # linking a shared library.
-	      output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "\-L"'
-
-	    else
-	      # FIXME: insert proper C++ library support
-	      _LT_TAGVAR(ld_shlibs, $1)=no
-	    fi
-	    ;;
-        esac
-        ;;
-
-      psos*)
-        # FIXME: insert proper C++ library support
-        _LT_TAGVAR(ld_shlibs, $1)=no
-        ;;
-
-      sunos4*)
-        case $cc_basename in
-          CC*)
-	    # Sun C++ 4.x
-	    # FIXME: insert proper C++ library support
-	    _LT_TAGVAR(ld_shlibs, $1)=no
-	    ;;
-          lcc*)
-	    # Lucid
-	    # FIXME: insert proper C++ library support
-	    _LT_TAGVAR(ld_shlibs, $1)=no
-	    ;;
-          *)
-	    # FIXME: insert proper C++ library support
-	    _LT_TAGVAR(ld_shlibs, $1)=no
-	    ;;
-        esac
-        ;;
-
-      solaris*)
-        case $cc_basename in
-          CC*)
-	    # Sun C++ 4.2, 5.x and Centerline C++
-            _LT_TAGVAR(archive_cmds_need_lc,$1)=yes
-	    _LT_TAGVAR(no_undefined_flag, $1)=' -zdefs'
-	    _LT_TAGVAR(archive_cmds, $1)='$CC -G${allow_undefined_flag}  -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
-	    _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
-	      $CC -G${allow_undefined_flag} ${wl}-M ${wl}$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
-
-	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
-	    _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
-	    case $host_os in
-	      solaris2.[[0-5]] | solaris2.[[0-5]].*) ;;
-	      *)
-		# The compiler driver will combine and reorder linker options,
-		# but understands `-z linker_flag'.
-	        # Supported since Solaris 2.6 (maybe 2.5.1?)
-		_LT_TAGVAR(whole_archive_flag_spec, $1)='-z allextract$convenience -z defaultextract'
-	        ;;
-	    esac
-	    _LT_TAGVAR(link_all_deplibs, $1)=yes
-
-	    output_verbose_link_cmd='echo'
-
-	    # Archives containing C++ object files must be created using
-	    # "CC -xar", where "CC" is the Sun C++ compiler.  This is
-	    # necessary to make sure instantiated templates are included
-	    # in the archive.
-	    _LT_TAGVAR(old_archive_cmds, $1)='$CC -xar -o $oldlib $oldobjs'
-	    ;;
-          gcx*)
-	    # Green Hills C++ Compiler
-	    _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
-
-	    # The C++ compiler must be used to create the archive.
-	    _LT_TAGVAR(old_archive_cmds, $1)='$CC $LDFLAGS -archive -o $oldlib $oldobjs'
-	    ;;
-          *)
-	    # GNU C++ compiler with Solaris linker
-	    if test "$GXX" = yes && test "$with_gnu_ld" = no; then
-	      _LT_TAGVAR(no_undefined_flag, $1)=' ${wl}-z ${wl}defs'
-	      if $CC --version | $GREP -v '^2\.7' > /dev/null; then
-	        _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
-	        _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
-		  $CC -shared -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
-
-	        # Commands to make compiler produce verbose output that lists
-	        # what "hidden" libraries, object files and flags are used when
-	        # linking a shared library.
-	        output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "\-L"'
-	      else
-	        # g++ 2.7 appears to require `-G' NOT `-shared' on this
-	        # platform.
-	        _LT_TAGVAR(archive_cmds, $1)='$CC -G -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
-	        _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
-		  $CC -G -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
-
-	        # Commands to make compiler produce verbose output that lists
-	        # what "hidden" libraries, object files and flags are used when
-	        # linking a shared library.
-	        output_verbose_link_cmd='$CC -G $CFLAGS -v conftest.$objext 2>&1 | $GREP "\-L"'
-	      fi
-
-	      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R $wl$libdir'
-	      case $host_os in
-		solaris2.[[0-5]] | solaris2.[[0-5]].*) ;;
-		*)
-		  _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
-		  ;;
-	      esac
-	    fi
-	    ;;
-        esac
-        ;;
-
-    sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[[01]].[[10]]* | unixware7* | sco3.2v5.0.[[024]]*)
-      _LT_TAGVAR(no_undefined_flag, $1)='${wl}-z,text'
-      _LT_TAGVAR(archive_cmds_need_lc, $1)=no
-      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
-      runpath_var='LD_RUN_PATH'
-
-      case $cc_basename in
-        CC*)
-	  _LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
-	  _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
-	  ;;
-	*)
-	  _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
-	  _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
-	  ;;
-      esac
-      ;;
-
-      sysv5* | sco3.2v5* | sco5v6*)
-	# Note: We can NOT use -z defs as we might desire, because we do not
-	# link with -lc, and that would cause any symbols used from libc to
-	# always be unresolved, which means just about no library would
-	# ever link correctly.  If we're not using GNU ld we use -z text
-	# though, which does catch some bad symbols but isn't as heavy-handed
-	# as -z defs.
-	_LT_TAGVAR(no_undefined_flag, $1)='${wl}-z,text'
-	_LT_TAGVAR(allow_undefined_flag, $1)='${wl}-z,nodefs'
-	_LT_TAGVAR(archive_cmds_need_lc, $1)=no
-	_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
-	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R,$libdir'
-	_LT_TAGVAR(hardcode_libdir_separator, $1)=':'
-	_LT_TAGVAR(link_all_deplibs, $1)=yes
-	_LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-Bexport'
-	runpath_var='LD_RUN_PATH'
-
-	case $cc_basename in
-          CC*)
-	    _LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
-	    _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
-	    ;;
-	  *)
-	    _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
-	    _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
-	    ;;
-	esac
-      ;;
-
-      tandem*)
-        case $cc_basename in
-          NCC*)
-	    # NonStop-UX NCC 3.20
-	    # FIXME: insert proper C++ library support
-	    _LT_TAGVAR(ld_shlibs, $1)=no
-	    ;;
-          *)
-	    # FIXME: insert proper C++ library support
-	    _LT_TAGVAR(ld_shlibs, $1)=no
-	    ;;
-        esac
-        ;;
-
-      vxworks*)
-        # FIXME: insert proper C++ library support
-        _LT_TAGVAR(ld_shlibs, $1)=no
-        ;;
-
-      *)
-        # FIXME: insert proper C++ library support
-        _LT_TAGVAR(ld_shlibs, $1)=no
-        ;;
-    esac
-
-    AC_MSG_RESULT([$_LT_TAGVAR(ld_shlibs, $1)])
-    test "$_LT_TAGVAR(ld_shlibs, $1)" = no && can_build_shared=no
-
-    _LT_TAGVAR(GCC, $1)="$GXX"
-    _LT_TAGVAR(LD, $1)="$LD"
-
-    ## CAVEAT EMPTOR:
-    ## There is no encapsulation within the following macros, do not change
-    ## the running order or otherwise move them around unless you know exactly
-    ## what you are doing...
-    _LT_SYS_HIDDEN_LIBDEPS($1)
-    _LT_COMPILER_PIC($1)
-    _LT_COMPILER_C_O($1)
-    _LT_COMPILER_FILE_LOCKS($1)
-    _LT_LINKER_SHLIBS($1)
-    _LT_SYS_DYNAMIC_LINKER($1)
-    _LT_LINKER_HARDCODE_LIBPATH($1)
-
-    _LT_CONFIG($1)
-  fi # test -n "$compiler"
-
-  CC=$lt_save_CC
-  LDCXX=$LD
-  LD=$lt_save_LD
-  GCC=$lt_save_GCC
-  with_gnu_ld=$lt_save_with_gnu_ld
-  lt_cv_path_LDCXX=$lt_cv_path_LD
-  lt_cv_path_LD=$lt_save_path_LD
-  lt_cv_prog_gnu_ldcxx=$lt_cv_prog_gnu_ld
-  lt_cv_prog_gnu_ld=$lt_save_with_gnu_ld
-fi # test "$_lt_caught_CXX_error" != yes
-
-AC_LANG_POP
-])# _LT_LANG_CXX_CONFIG
-
-
-# _LT_SYS_HIDDEN_LIBDEPS([TAGNAME])
-# ---------------------------------
-# Figure out "hidden" library dependencies from verbose
-# compiler output when linking a shared library.
-# Parse the compiler output and extract the necessary
-# objects, libraries and library flags.
-m4_defun([_LT_SYS_HIDDEN_LIBDEPS],
-[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-# Dependencies to place before and after the object being linked:
-_LT_TAGVAR(predep_objects, $1)=
-_LT_TAGVAR(postdep_objects, $1)=
-_LT_TAGVAR(predeps, $1)=
-_LT_TAGVAR(postdeps, $1)=
-_LT_TAGVAR(compiler_lib_search_path, $1)=
-
-dnl we can't use the lt_simple_compile_test_code here,
-dnl because it contains code intended for an executable,
-dnl not a library.  It's possible we should let each
-dnl tag define a new lt_????_link_test_code variable,
-dnl but it's only used here...
-m4_if([$1], [], [cat > conftest.$ac_ext <<_LT_EOF
-int a;
-void foo (void) { a = 0; }
-_LT_EOF
-], [$1], [CXX], [cat > conftest.$ac_ext <<_LT_EOF
-class Foo
-{
-public:
-  Foo (void) { a = 0; }
-private:
-  int a;
-};
-_LT_EOF
-], [$1], [F77], [cat > conftest.$ac_ext <<_LT_EOF
-      subroutine foo
-      implicit none
-      integer*4 a
-      a=0
-      return
-      end
-_LT_EOF
-], [$1], [FC], [cat > conftest.$ac_ext <<_LT_EOF
-      subroutine foo
-      implicit none
-      integer a
-      a=0
-      return
-      end
-_LT_EOF
-], [$1], [GCJ], [cat > conftest.$ac_ext <<_LT_EOF
-public class foo {
-  private int a;
-  public void bar (void) {
-    a = 0;
-  }
-};
-_LT_EOF
-])
-dnl Parse the compiler output and extract the necessary
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-if AC_TRY_EVAL(ac_compile); then
-  # Parse the compiler output and extract the necessary
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-  # Sentinel used to keep track of whether or not we are before
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-  pre_test_object_deps_done=no
-
-  for p in `eval "$output_verbose_link_cmd"`; do
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-
-    -L* | -R* | -l*)
-       # Some compilers place space between "-{L,R}" and the path.
-       # Remove the space.
-       if test $p = "-L" ||
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-	 prev=$p
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-       else
-	 prev=
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-
-       if test "$pre_test_object_deps_done" = no; then
-	 case $p in
-	 -L* | -R*)
-	   # Internal compiler library paths should come after those
-	   # provided the user.  The postdeps already come after the
-	   # user supplied libs so there is no need to process them.
-	   if test -z "$_LT_TAGVAR(compiler_lib_search_path, $1)"; then
-	     _LT_TAGVAR(compiler_lib_search_path, $1)="${prev}${p}"
-	   else
-	     _LT_TAGVAR(compiler_lib_search_path, $1)="${_LT_TAGVAR(compiler_lib_search_path, $1)} ${prev}${p}"
-	   fi
-	   ;;
-	 # The "-l" case would never come before the object being
-	 # linked, so don't bother handling this case.
-	 esac
-       else
-	 if test -z "$_LT_TAGVAR(postdeps, $1)"; then
-	   _LT_TAGVAR(postdeps, $1)="${prev}${p}"
-	 else
-	   _LT_TAGVAR(postdeps, $1)="${_LT_TAGVAR(postdeps, $1)} ${prev}${p}"
-	 fi
-       fi
-       ;;
-
-    *.$objext)
-       # This assumes that the test object file only shows up
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-
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-	 if test -z "$_LT_TAGVAR(predep_objects, $1)"; then
-	   _LT_TAGVAR(predep_objects, $1)="$p"
-	 else
-	   _LT_TAGVAR(predep_objects, $1)="$_LT_TAGVAR(predep_objects, $1) $p"
-	 fi
-       else
-	 if test -z "$_LT_TAGVAR(postdep_objects, $1)"; then
-	   _LT_TAGVAR(postdep_objects, $1)="$p"
-	 else
-	   _LT_TAGVAR(postdep_objects, $1)="$_LT_TAGVAR(postdep_objects, $1) $p"
-	 fi
-       fi
-       ;;
-
-    *) ;; # Ignore the rest.
-
-    esac
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-
-  # Clean up.
-  rm -f a.out a.exe
-else
-  echo "libtool.m4: error: problem compiling $1 test program"
-fi
-
-$RM -f confest.$objext
-
-# PORTME: override above test on systems where it is broken
-m4_if([$1], [CXX],
-[case $host_os in
-interix[[3-9]]*)
-  # Interix 3.5 installs completely hosed .la files for C++, so rather than
-  # hack all around it, let's just trust "g++" to DTRT.
-  _LT_TAGVAR(predep_objects,$1)=
-  _LT_TAGVAR(postdep_objects,$1)=
-  _LT_TAGVAR(postdeps,$1)=
-  ;;
-
-linux*)
-  case `$CC -V 2>&1 | sed 5q` in
-  *Sun\ C*)
-    # Sun C++ 5.9
-
-    # The more standards-conforming stlport4 library is
-    # incompatible with the Cstd library. Avoid specifying
-    # it if it's in CXXFLAGS. Ignore libCrun as
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-    case " $CXX $CXXFLAGS " in
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-      solaris_use_stlport4=yes
-      ;;
-    esac
-
-    if test "$solaris_use_stlport4" != yes; then
-      _LT_TAGVAR(postdeps,$1)='-library=Cstd -library=Crun'
-    fi
-    ;;
-  esac
-  ;;
-
-solaris*)
-  case $cc_basename in
-  CC*)
-    # The more standards-conforming stlport4 library is
-    # incompatible with the Cstd library. Avoid specifying
-    # it if it's in CXXFLAGS. Ignore libCrun as
-    # -library=stlport4 depends on it.
-    case " $CXX $CXXFLAGS " in
-    *" -library=stlport4 "*)
-      solaris_use_stlport4=yes
-      ;;
-    esac
-
-    # Adding this requires a known-good setup of shared libraries for
-    # Sun compiler versions before 5.6, else PIC objects from an old
-    # archive will be linked into the output, leading to subtle bugs.
-    if test "$solaris_use_stlport4" != yes; then
-      _LT_TAGVAR(postdeps,$1)='-library=Cstd -library=Crun'
-    fi
-    ;;
-  esac
-  ;;
-esac
-])
-
-case " $_LT_TAGVAR(postdeps, $1) " in
-*" -lc "*) _LT_TAGVAR(archive_cmds_need_lc, $1)=no ;;
-esac
- _LT_TAGVAR(compiler_lib_search_dirs, $1)=
-if test -n "${_LT_TAGVAR(compiler_lib_search_path, $1)}"; then
- _LT_TAGVAR(compiler_lib_search_dirs, $1)=`echo " ${_LT_TAGVAR(compiler_lib_search_path, $1)}" | ${SED} -e 's! -L! !g' -e 's!^ !!'`
-fi
-_LT_TAGDECL([], [compiler_lib_search_dirs], [1],
-    [The directories searched by this compiler when creating a shared library])
-_LT_TAGDECL([], [predep_objects], [1],
-    [Dependencies to place before and after the objects being linked to
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-_LT_TAGDECL([], [postdep_objects], [1])
-_LT_TAGDECL([], [predeps], [1])
-_LT_TAGDECL([], [postdeps], [1])
-_LT_TAGDECL([], [compiler_lib_search_path], [1],
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-    a shared library])
-])# _LT_SYS_HIDDEN_LIBDEPS
-
-
-# _LT_PROG_F77
-# ------------
-# Since AC_PROG_F77 is broken, in that it returns the empty string
-# if there is no fortran compiler, we have our own version here.
-m4_defun([_LT_PROG_F77],
-[
-pushdef([AC_MSG_ERROR], [_lt_disable_F77=yes])
-AC_PROG_F77
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-dnl aclocal-1.4 backwards compatibility:
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-
-# _LT_LANG_F77_CONFIG([TAG])
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-[AC_REQUIRE([_LT_PROG_F77])dnl
-AC_LANG_PUSH(Fortran 77)
-
-_LT_TAGVAR(archive_cmds_need_lc, $1)=no
-_LT_TAGVAR(allow_undefined_flag, $1)=
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-_LT_TAGVAR(hardcode_direct_absolute, $1)=no
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-_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
-_LT_TAGVAR(no_undefined_flag, $1)=
-_LT_TAGVAR(whole_archive_flag_spec, $1)=
-_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
-
-# Source file extension for f77 test sources.
-ac_ext=f
-
-# Object file extension for compiled f77 test sources.
-objext=o
-_LT_TAGVAR(objext, $1)=$objext
-
-# No sense in running all these tests if we already determined that
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-  # Code to be used in simple compile tests
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-
-  # Code to be used in simple link tests
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-  # ltmain only uses $CC for tagged configurations so make sure $CC is set.
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-
-  # save warnings/boilerplate of simple test code
-  _LT_COMPILER_BOILERPLATE
-  _LT_LINKER_BOILERPLATE
-
-  # Allow CC to be a program name with arguments.
-  lt_save_CC="$CC"
-  lt_save_GCC=$GCC
-  CC=${F77-"f77"}
-  compiler=$CC
-  _LT_TAGVAR(compiler, $1)=$CC
-  _LT_CC_BASENAME([$compiler])
-  GCC=$G77
-  if test -n "$compiler"; then
-    AC_MSG_CHECKING([if libtool supports shared libraries])
-    AC_MSG_RESULT([$can_build_shared])
-
-    AC_MSG_CHECKING([whether to build shared libraries])
-    test "$can_build_shared" = "no" && enable_shared=no
-
-    # On AIX, shared libraries and static libraries use the same namespace, and
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-        if test -n "$RANLIB"; then
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-        ;;
-      aix[[4-9]]*)
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-	  test "$enable_shared" = yes && enable_static=no
-	fi
-        ;;
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-    AC_MSG_RESULT([$enable_shared])
-
-    AC_MSG_CHECKING([whether to build static libraries])
-    # Make sure either enable_shared or enable_static is yes.
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-    AC_MSG_RESULT([$enable_static])
-
-    _LT_TAGVAR(GCC, $1)="$G77"
-    _LT_TAGVAR(LD, $1)="$LD"
-
-    ## CAVEAT EMPTOR:
-    ## There is no encapsulation within the following macros, do not change
-    ## the running order or otherwise move them around unless you know exactly
-    ## what you are doing...
-    _LT_COMPILER_PIC($1)
-    _LT_COMPILER_C_O($1)
-    _LT_COMPILER_FILE_LOCKS($1)
-    _LT_LINKER_SHLIBS($1)
-    _LT_SYS_DYNAMIC_LINKER($1)
-    _LT_LINKER_HARDCODE_LIBPATH($1)
-
-    _LT_CONFIG($1)
-  fi # test -n "$compiler"
-
-  GCC=$lt_save_GCC
-  CC="$lt_save_CC"
-fi # test "$_lt_disable_F77" != yes
-
-AC_LANG_POP
-])# _LT_LANG_F77_CONFIG
-
-
-# _LT_PROG_FC
-# -----------
-# Since AC_PROG_FC is broken, in that it returns the empty string
-# if there is no fortran compiler, we have our own version here.
-m4_defun([_LT_PROG_FC],
-[
-pushdef([AC_MSG_ERROR], [_lt_disable_FC=yes])
-AC_PROG_FC
-if test -z "$FC" || test "X$FC" = "Xno"; then
-  _lt_disable_FC=yes
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-popdef([AC_MSG_ERROR])
-])# _LT_PROG_FC
-
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([_LT_PROG_FC], [])
-
-
-# _LT_LANG_FC_CONFIG([TAG])
-# -------------------------
-# Ensure that the configuration variables for a Fortran compiler are
-# suitably defined.  These variables are subsequently used by _LT_CONFIG
-# to write the compiler configuration to `libtool'.
-m4_defun([_LT_LANG_FC_CONFIG],
-[AC_REQUIRE([_LT_PROG_FC])dnl
-AC_LANG_PUSH(Fortran)
-
-_LT_TAGVAR(archive_cmds_need_lc, $1)=no
-_LT_TAGVAR(allow_undefined_flag, $1)=
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-_LT_TAGVAR(archive_expsym_cmds, $1)=
-_LT_TAGVAR(export_dynamic_flag_spec, $1)=
-_LT_TAGVAR(hardcode_direct, $1)=no
-_LT_TAGVAR(hardcode_direct_absolute, $1)=no
-_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
-_LT_TAGVAR(hardcode_libdir_flag_spec_ld, $1)=
-_LT_TAGVAR(hardcode_libdir_separator, $1)=
-_LT_TAGVAR(hardcode_minus_L, $1)=no
-_LT_TAGVAR(hardcode_automatic, $1)=no
-_LT_TAGVAR(inherit_rpath, $1)=no
-_LT_TAGVAR(module_cmds, $1)=
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-_LT_TAGVAR(link_all_deplibs, $1)=unknown
-_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
-_LT_TAGVAR(no_undefined_flag, $1)=
-_LT_TAGVAR(whole_archive_flag_spec, $1)=
-_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
-
-# Source file extension for fc test sources.
-ac_ext=${ac_fc_srcext-f}
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-objext=o
-_LT_TAGVAR(objext, $1)=$objext
-
-# No sense in running all these tests if we already determined that
-# the FC compiler isn't working.  Some variables (like enable_shared)
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-if test "$_lt_disable_FC" != yes; then
-  # Code to be used in simple compile tests
-  lt_simple_compile_test_code="\
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-  # Code to be used in simple link tests
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-
-  # ltmain only uses $CC for tagged configurations so make sure $CC is set.
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-
-  # save warnings/boilerplate of simple test code
-  _LT_COMPILER_BOILERPLATE
-  _LT_LINKER_BOILERPLATE
-
-  # Allow CC to be a program name with arguments.
-  lt_save_CC="$CC"
-  lt_save_GCC=$GCC
-  CC=${FC-"f95"}
-  compiler=$CC
-  GCC=$ac_cv_fc_compiler_gnu
-
-  _LT_TAGVAR(compiler, $1)=$CC
-  _LT_CC_BASENAME([$compiler])
-
-  if test -n "$compiler"; then
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-    AC_MSG_RESULT([$can_build_shared])
-
-    AC_MSG_CHECKING([whether to build shared libraries])
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-
-    # On AIX, shared libraries and static libraries use the same namespace, and
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-        if test -n "$RANLIB"; then
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-      aix[[4-9]]*)
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-
-    _LT_TAGVAR(GCC, $1)="$ac_cv_fc_compiler_gnu"
-    _LT_TAGVAR(LD, $1)="$LD"
-
-    ## CAVEAT EMPTOR:
-    ## There is no encapsulation within the following macros, do not change
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-    _LT_SYS_HIDDEN_LIBDEPS($1)
-    _LT_COMPILER_PIC($1)
-    _LT_COMPILER_C_O($1)
-    _LT_COMPILER_FILE_LOCKS($1)
-    _LT_LINKER_SHLIBS($1)
-    _LT_SYS_DYNAMIC_LINKER($1)
-    _LT_LINKER_HARDCODE_LIBPATH($1)
-
-    _LT_CONFIG($1)
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-
-  GCC=$lt_save_GCC
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-
-AC_LANG_POP
-])# _LT_LANG_FC_CONFIG
-
-
-# _LT_LANG_GCJ_CONFIG([TAG])
-# --------------------------
-# Ensure that the configuration variables for the GNU Java Compiler compiler
-# are suitably defined.  These variables are subsequently used by _LT_CONFIG
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-m4_defun([_LT_LANG_GCJ_CONFIG],
-[AC_REQUIRE([LT_PROG_GCJ])dnl
-AC_LANG_SAVE
-
-# Source file extension for Java test sources.
-ac_ext=java
-
-# Object file extension for compiled Java test sources.
-objext=o
-_LT_TAGVAR(objext, $1)=$objext
-
-# Code to be used in simple compile tests
-lt_simple_compile_test_code="class foo {}"
-
-# Code to be used in simple link tests
-lt_simple_link_test_code='public class conftest { public static void main(String[[]] argv) {}; }'
-
-# ltmain only uses $CC for tagged configurations so make sure $CC is set.
-_LT_TAG_COMPILER
-
-# save warnings/boilerplate of simple test code
-_LT_COMPILER_BOILERPLATE
-_LT_LINKER_BOILERPLATE
-
-# Allow CC to be a program name with arguments.
-lt_save_CC="$CC"
-lt_save_GCC=$GCC
-GCC=yes
-CC=${GCJ-"gcj"}
-compiler=$CC
-_LT_TAGVAR(compiler, $1)=$CC
-_LT_TAGVAR(LD, $1)="$LD"
-_LT_CC_BASENAME([$compiler])
-
-# GCJ did not exist at the time GCC didn't implicitly link libc in.
-_LT_TAGVAR(archive_cmds_need_lc, $1)=no
-
-_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
-
-if test -n "$compiler"; then
-  _LT_COMPILER_NO_RTTI($1)
-  _LT_COMPILER_PIC($1)
-  _LT_COMPILER_C_O($1)
-  _LT_COMPILER_FILE_LOCKS($1)
-  _LT_LINKER_SHLIBS($1)
-  _LT_LINKER_HARDCODE_LIBPATH($1)
-
-  _LT_CONFIG($1)
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-AC_LANG_RESTORE
-
-GCC=$lt_save_GCC
-CC="$lt_save_CC"
-])# _LT_LANG_GCJ_CONFIG
-
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-# _LT_LANG_RC_CONFIG([TAG])
-# -------------------------
-# Ensure that the configuration variables for the Windows resource compiler
-# are suitably defined.  These variables are subsequently used by _LT_CONFIG
-# to write the compiler configuration to `libtool'.
-m4_defun([_LT_LANG_RC_CONFIG],
-[AC_REQUIRE([LT_PROG_RC])dnl
-AC_LANG_SAVE
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-# Source file extension for RC test sources.
-ac_ext=rc
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-objext=o
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-# Code to be used in simple compile tests
-lt_simple_compile_test_code='sample MENU { MENUITEM "&Soup", 100, CHECKED }'
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-# Code to be used in simple link tests
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-# ltmain only uses $CC for tagged configurations so make sure $CC is set.
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-_LT_COMPILER_BOILERPLATE
-_LT_LINKER_BOILERPLATE
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-# Old name:
-AU_ALIAS([LT_AC_PROG_RC], [LT_PROG_RC])
-dnl aclocal-1.4 backwards compatibility:
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-_LT_DECL([], [GREP], [1], [A grep program that handles long lines])
-_LT_DECL([], [EGREP], [1], [An ERE matcher])
-_LT_DECL([], [FGREP], [1], [A literal string matcher])
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-m4_defun([_LT_DECL_OBJDUMP],
-[AC_CHECK_TOOL(OBJDUMP, objdump, false)
-test -z "$OBJDUMP" && OBJDUMP=objdump
-_LT_DECL([], [OBJDUMP], [1], [An object symbol dumper])
-AC_SUBST([OBJDUMP])
-])
-
-
-# _LT_DECL_SED
-# ------------
-# Check for a fully-functional sed program, that truncates
-# as few characters as possible.  Prefer GNU sed if found.
-m4_defun([_LT_DECL_SED],
-[AC_PROG_SED
-test -z "$SED" && SED=sed
-Xsed="$SED -e 1s/^X//"
-_LT_DECL([], [SED], [1], [A sed program that does not truncate output])
-_LT_DECL([], [Xsed], ["\$SED -e 1s/^X//"],
-    [Sed that helps us avoid accidentally triggering echo(1) options like -n])
-])# _LT_DECL_SED
-
-m4_ifndef([AC_PROG_SED], [
-# NOTE: This macro has been submitted for inclusion into   #
-#  GNU Autoconf as AC_PROG_SED.  When it is available in   #
-#  a released version of Autoconf we should remove this    #
-#  macro and use it instead.                               #
-
-m4_defun([AC_PROG_SED],
-[AC_MSG_CHECKING([for a sed that does not truncate output])
-AC_CACHE_VAL(lt_cv_path_SED,
-[# Loop through the user's path and test for sed and gsed.
-# Then use that list of sed's as ones to test for truncation.
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-  for lt_ac_prog in sed gsed; do
-    for ac_exec_ext in '' $ac_executable_extensions; do
-      if $as_executable_p "$as_dir/$lt_ac_prog$ac_exec_ext"; then
-        lt_ac_sed_list="$lt_ac_sed_list $as_dir/$lt_ac_prog$ac_exec_ext"
-      fi
-    done
-  done
-done
-IFS=$as_save_IFS
-lt_ac_max=0
-lt_ac_count=0
-# Add /usr/xpg4/bin/sed as it is typically found on Solaris
-# along with /bin/sed that truncates output.
-for lt_ac_sed in $lt_ac_sed_list /usr/xpg4/bin/sed; do
-  test ! -f $lt_ac_sed && continue
-  cat /dev/null > conftest.in
-  lt_ac_count=0
-  echo $ECHO_N "0123456789$ECHO_C" >conftest.in
-  # Check for GNU sed and select it if it is found.
-  if "$lt_ac_sed" --version 2>&1 < /dev/null | grep 'GNU' > /dev/null; then
-    lt_cv_path_SED=$lt_ac_sed
-    break
-  fi
-  while true; do
-    cat conftest.in conftest.in >conftest.tmp
-    mv conftest.tmp conftest.in
-    cp conftest.in conftest.nl
-    echo >>conftest.nl
-    $lt_ac_sed -e 's/a$//' < conftest.nl >conftest.out || break
-    cmp -s conftest.out conftest.nl || break
-    # 10000 chars as input seems more than enough
-    test $lt_ac_count -gt 10 && break
-    lt_ac_count=`expr $lt_ac_count + 1`
-    if test $lt_ac_count -gt $lt_ac_max; then
-      lt_ac_max=$lt_ac_count
-      lt_cv_path_SED=$lt_ac_sed
-    fi
-  done
-done
-])
-SED=$lt_cv_path_SED
-AC_SUBST([SED])
-AC_MSG_RESULT([$SED])
-])#AC_PROG_SED
-])#m4_ifndef
-
-# Old name:
-AU_ALIAS([LT_AC_PROG_SED], [AC_PROG_SED])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([LT_AC_PROG_SED], [])
-
-
-# _LT_CHECK_SHELL_FEATURES
-# ------------------------
-# Find out whether the shell is Bourne or XSI compatible,
-# or has some other useful features.
-m4_defun([_LT_CHECK_SHELL_FEATURES],
-[AC_MSG_CHECKING([whether the shell understands some XSI constructs])
-# Try some XSI features
-xsi_shell=no
-( _lt_dummy="a/b/c"
-  test "${_lt_dummy##*/},${_lt_dummy%/*},"${_lt_dummy%"$_lt_dummy"}, \
-      = c,a/b,, \
-    && eval 'test $(( 1 + 1 )) -eq 2 \
-    && test "${#_lt_dummy}" -eq 5' ) >/dev/null 2>&1 \
-  && xsi_shell=yes
-AC_MSG_RESULT([$xsi_shell])
-_LT_CONFIG_LIBTOOL_INIT([xsi_shell='$xsi_shell'])
-
-AC_MSG_CHECKING([whether the shell understands "+="])
-lt_shell_append=no
-( foo=bar; set foo baz; eval "$[1]+=\$[2]" && test "$foo" = barbaz ) \
-    >/dev/null 2>&1 \
-  && lt_shell_append=yes
-AC_MSG_RESULT([$lt_shell_append])
-_LT_CONFIG_LIBTOOL_INIT([lt_shell_append='$lt_shell_append'])
-
-if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
-  lt_unset=unset
-else
-  lt_unset=false
-fi
-_LT_DECL([], [lt_unset], [0], [whether the shell understands "unset"])dnl
-
-# test EBCDIC or ASCII
-case `echo X|tr X '\101'` in
- A) # ASCII based system
-    # \n is not interpreted correctly by Solaris 8 /usr/ucb/tr
-  lt_SP2NL='tr \040 \012'
-  lt_NL2SP='tr \015\012 \040\040'
-  ;;
- *) # EBCDIC based system
-  lt_SP2NL='tr \100 \n'
-  lt_NL2SP='tr \r\n \100\100'
-  ;;
-esac
-_LT_DECL([SP2NL], [lt_SP2NL], [1], [turn spaces into newlines])dnl
-_LT_DECL([NL2SP], [lt_NL2SP], [1], [turn newlines into spaces])dnl
-])# _LT_CHECK_SHELL_FEATURES
-
-
-# _LT_PROG_XSI_SHELLFNS
-# ---------------------
-# Bourne and XSI compatible variants of some useful shell functions.
-m4_defun([_LT_PROG_XSI_SHELLFNS],
-[case $xsi_shell in
-  yes)
-    cat << \_LT_EOF >> "$cfgfile"
-
-# func_dirname file append nondir_replacement
-# Compute the dirname of FILE.  If nonempty, add APPEND to the result,
-# otherwise set result to NONDIR_REPLACEMENT.
-func_dirname ()
-{
-  case ${1} in
-    */*) func_dirname_result="${1%/*}${2}" ;;
-    *  ) func_dirname_result="${3}" ;;
-  esac
-}
-
-# func_basename file
-func_basename ()
-{
-  func_basename_result="${1##*/}"
-}
-
-# func_dirname_and_basename file append nondir_replacement
-# perform func_basename and func_dirname in a single function
-# call:
-#   dirname:  Compute the dirname of FILE.  If nonempty,
-#             add APPEND to the result, otherwise set result
-#             to NONDIR_REPLACEMENT.
-#             value returned in "$func_dirname_result"
-#   basename: Compute filename of FILE.
-#             value retuned in "$func_basename_result"
-# Implementation must be kept synchronized with func_dirname
-# and func_basename. For efficiency, we do not delegate to
-# those functions but instead duplicate the functionality here.
-func_dirname_and_basename ()
-{
-  case ${1} in
-    */*) func_dirname_result="${1%/*}${2}" ;;
-    *  ) func_dirname_result="${3}" ;;
-  esac
-  func_basename_result="${1##*/}"
-}
-
-# func_stripname prefix suffix name
-# strip PREFIX and SUFFIX off of NAME.
-# PREFIX and SUFFIX must not contain globbing or regex special
-# characters, hashes, percent signs, but SUFFIX may contain a leading
-# dot (in which case that matches only a dot).
-func_stripname ()
-{
-  # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are
-  # positional parameters, so assign one to ordinary parameter first.
-  func_stripname_result=${3}
-  func_stripname_result=${func_stripname_result#"${1}"}
-  func_stripname_result=${func_stripname_result%"${2}"}
-}
-
-# func_opt_split
-func_opt_split ()
-{
-  func_opt_split_opt=${1%%=*}
-  func_opt_split_arg=${1#*=}
-}
-
-# func_lo2o object
-func_lo2o ()
-{
-  case ${1} in
-    *.lo) func_lo2o_result=${1%.lo}.${objext} ;;
-    *)    func_lo2o_result=${1} ;;
-  esac
-}
-
-# func_xform libobj-or-source
-func_xform ()
-{
-  func_xform_result=${1%.*}.lo
-}
-
-# func_arith arithmetic-term...
-func_arith ()
-{
-  func_arith_result=$(( $[*] ))
-}
-
-# func_len string
-# STRING may not start with a hyphen.
-func_len ()
-{
-  func_len_result=${#1}
-}
-
-_LT_EOF
-    ;;
-  *) # Bourne compatible functions.
-    cat << \_LT_EOF >> "$cfgfile"
-
-# func_dirname file append nondir_replacement
-# Compute the dirname of FILE.  If nonempty, add APPEND to the result,
-# otherwise set result to NONDIR_REPLACEMENT.
-func_dirname ()
-{
-  # Extract subdirectory from the argument.
-  func_dirname_result=`$ECHO "X${1}" | $Xsed -e "$dirname"`
-  if test "X$func_dirname_result" = "X${1}"; then
-    func_dirname_result="${3}"
-  else
-    func_dirname_result="$func_dirname_result${2}"
-  fi
-}
-
-# func_basename file
-func_basename ()
-{
-  func_basename_result=`$ECHO "X${1}" | $Xsed -e "$basename"`
-}
-
-dnl func_dirname_and_basename
-dnl A portable version of this function is already defined in general.m4sh
-dnl so there is no need for it here.
-
-# func_stripname prefix suffix name
-# strip PREFIX and SUFFIX off of NAME.
-# PREFIX and SUFFIX must not contain globbing or regex special
-# characters, hashes, percent signs, but SUFFIX may contain a leading
-# dot (in which case that matches only a dot).
-# func_strip_suffix prefix name
-func_stripname ()
-{
-  case ${2} in
-    .*) func_stripname_result=`$ECHO "X${3}" \
-           | $Xsed -e "s%^${1}%%" -e "s%\\\\${2}\$%%"`;;
-    *)  func_stripname_result=`$ECHO "X${3}" \
-           | $Xsed -e "s%^${1}%%" -e "s%${2}\$%%"`;;
-  esac
-}
-
-# sed scripts:
-my_sed_long_opt='1s/^\(-[[^=]]*\)=.*/\1/;q'
-my_sed_long_arg='1s/^-[[^=]]*=//'
-
-# func_opt_split
-func_opt_split ()
-{
-  func_opt_split_opt=`$ECHO "X${1}" | $Xsed -e "$my_sed_long_opt"`
-  func_opt_split_arg=`$ECHO "X${1}" | $Xsed -e "$my_sed_long_arg"`
-}
-
-# func_lo2o object
-func_lo2o ()
-{
-  func_lo2o_result=`$ECHO "X${1}" | $Xsed -e "$lo2o"`
-}
-
-# func_xform libobj-or-source
-func_xform ()
-{
-  func_xform_result=`$ECHO "X${1}" | $Xsed -e 's/\.[[^.]]*$/.lo/'`
-}
-
-# func_arith arithmetic-term...
-func_arith ()
-{
-  func_arith_result=`expr "$[@]"`
-}
-
-# func_len string
-# STRING may not start with a hyphen.
-func_len ()
-{
-  func_len_result=`expr "$[1]" : ".*" 2>/dev/null || echo $max_cmd_len`
-}
-
-_LT_EOF
-esac
-
-case $lt_shell_append in
-  yes)
-    cat << \_LT_EOF >> "$cfgfile"
-
-# func_append var value
-# Append VALUE to the end of shell variable VAR.
-func_append ()
-{
-  eval "$[1]+=\$[2]"
-}
-_LT_EOF
-    ;;
-  *)
-    cat << \_LT_EOF >> "$cfgfile"
-
-# func_append var value
-# Append VALUE to the end of shell variable VAR.
-func_append ()
-{
-  eval "$[1]=\$$[1]\$[2]"
-}
-
-_LT_EOF
-    ;;
-  esac
-])
-
-# Helper functions for option handling.                    -*- Autoconf -*-
-#
-#   Copyright (C) 2004, 2005, 2007, 2008 Free Software Foundation, Inc.
-#   Written by Gary V. Vaughan, 2004
-#
-# This file is free software; the Free Software Foundation gives
-# unlimited permission to copy and/or distribute it, with or without
-# modifications, as long as this notice is preserved.
-
-# serial 6 ltoptions.m4
-
-# This is to help aclocal find these macros, as it can't see m4_define.
-AC_DEFUN([LTOPTIONS_VERSION], [m4_if([1])])
-
-
-# _LT_MANGLE_OPTION(MACRO-NAME, OPTION-NAME)
-# ------------------------------------------
-m4_define([_LT_MANGLE_OPTION],
-[[_LT_OPTION_]m4_bpatsubst($1__$2, [[^a-zA-Z0-9_]], [_])])
-
-
-# _LT_SET_OPTION(MACRO-NAME, OPTION-NAME)
-# ---------------------------------------
-# Set option OPTION-NAME for macro MACRO-NAME, and if there is a
-# matching handler defined, dispatch to it.  Other OPTION-NAMEs are
-# saved as a flag.
-m4_define([_LT_SET_OPTION],
-[m4_define(_LT_MANGLE_OPTION([$1], [$2]))dnl
-m4_ifdef(_LT_MANGLE_DEFUN([$1], [$2]),
-        _LT_MANGLE_DEFUN([$1], [$2]),
-    [m4_warning([Unknown $1 option `$2'])])[]dnl
-])
-
-
-# _LT_IF_OPTION(MACRO-NAME, OPTION-NAME, IF-SET, [IF-NOT-SET])
-# ------------------------------------------------------------
-# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
-m4_define([_LT_IF_OPTION],
-[m4_ifdef(_LT_MANGLE_OPTION([$1], [$2]), [$3], [$4])])
-
-
-# _LT_UNLESS_OPTIONS(MACRO-NAME, OPTION-LIST, IF-NOT-SET)
-# -------------------------------------------------------
-# Execute IF-NOT-SET unless all options in OPTION-LIST for MACRO-NAME
-# are set.
-m4_define([_LT_UNLESS_OPTIONS],
-[m4_foreach([_LT_Option], m4_split(m4_normalize([$2])),
-	    [m4_ifdef(_LT_MANGLE_OPTION([$1], _LT_Option),
-		      [m4_define([$0_found])])])[]dnl
-m4_ifdef([$0_found], [m4_undefine([$0_found])], [$3
-])[]dnl
-])
-
-
-# _LT_SET_OPTIONS(MACRO-NAME, OPTION-LIST)
-# ----------------------------------------
-# OPTION-LIST is a space-separated list of Libtool options associated
-# with MACRO-NAME.  If any OPTION has a matching handler declared with
-# LT_OPTION_DEFINE, dispatch to that macro; otherwise complain about
-# the unknown option and exit.
-m4_defun([_LT_SET_OPTIONS],
-[# Set options
-m4_foreach([_LT_Option], m4_split(m4_normalize([$2])),
-    [_LT_SET_OPTION([$1], _LT_Option)])
-
-m4_if([$1],[LT_INIT],[
-  dnl
-  dnl Simply set some default values (i.e off) if boolean options were not
-  dnl specified:
-  _LT_UNLESS_OPTIONS([LT_INIT], [dlopen], [enable_dlopen=no
-  ])
-  _LT_UNLESS_OPTIONS([LT_INIT], [win32-dll], [enable_win32_dll=no
-  ])
-  dnl
-  dnl If no reference was made to various pairs of opposing options, then
-  dnl we run the default mode handler for the pair.  For example, if neither
-  dnl `shared' nor `disable-shared' was passed, we enable building of shared
-  dnl archives by default:
-  _LT_UNLESS_OPTIONS([LT_INIT], [shared disable-shared], [_LT_ENABLE_SHARED])
-  _LT_UNLESS_OPTIONS([LT_INIT], [static disable-static], [_LT_ENABLE_STATIC])
-  _LT_UNLESS_OPTIONS([LT_INIT], [pic-only no-pic], [_LT_WITH_PIC])
-  _LT_UNLESS_OPTIONS([LT_INIT], [fast-install disable-fast-install],
-  		   [_LT_ENABLE_FAST_INSTALL])
-  ])
-])# _LT_SET_OPTIONS
-
-
-
-# _LT_MANGLE_DEFUN(MACRO-NAME, OPTION-NAME)
-# -----------------------------------------
-m4_define([_LT_MANGLE_DEFUN],
-[[_LT_OPTION_DEFUN_]m4_bpatsubst(m4_toupper([$1__$2]), [[^A-Z0-9_]], [_])])
-
-
-# LT_OPTION_DEFINE(MACRO-NAME, OPTION-NAME, CODE)
-# -----------------------------------------------
-m4_define([LT_OPTION_DEFINE],
-[m4_define(_LT_MANGLE_DEFUN([$1], [$2]), [$3])[]dnl
-])# LT_OPTION_DEFINE
-
-
-# dlopen
-# ------
-LT_OPTION_DEFINE([LT_INIT], [dlopen], [enable_dlopen=yes
-])
-
-AU_DEFUN([AC_LIBTOOL_DLOPEN],
-[_LT_SET_OPTION([LT_INIT], [dlopen])
-AC_DIAGNOSE([obsolete],
-[$0: Remove this warning and the call to _LT_SET_OPTION when you
-put the `dlopen' option into LT_INIT's first parameter.])
-])
-
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_LIBTOOL_DLOPEN], [])
-
-
-# win32-dll
-# ---------
-# Declare package support for building win32 dll's.
-LT_OPTION_DEFINE([LT_INIT], [win32-dll],
-[enable_win32_dll=yes
-
-case $host in
-*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-cegcc*)
-  AC_CHECK_TOOL(AS, as, false)
-  AC_CHECK_TOOL(DLLTOOL, dlltool, false)
-  AC_CHECK_TOOL(OBJDUMP, objdump, false)
-  ;;
-esac
-
-test -z "$AS" && AS=as
-_LT_DECL([], [AS],      [0], [Assembler program])dnl
-
-test -z "$DLLTOOL" && DLLTOOL=dlltool
-_LT_DECL([], [DLLTOOL], [0], [DLL creation program])dnl
-
-test -z "$OBJDUMP" && OBJDUMP=objdump
-_LT_DECL([], [OBJDUMP], [0], [Object dumper program])dnl
-])# win32-dll
-
-AU_DEFUN([AC_LIBTOOL_WIN32_DLL],
-[AC_REQUIRE([AC_CANONICAL_HOST])dnl
-_LT_SET_OPTION([LT_INIT], [win32-dll])
-AC_DIAGNOSE([obsolete],
-[$0: Remove this warning and the call to _LT_SET_OPTION when you
-put the `win32-dll' option into LT_INIT's first parameter.])
-])
-
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_LIBTOOL_WIN32_DLL], [])
-
-
-# _LT_ENABLE_SHARED([DEFAULT])
-# ----------------------------
-# implement the --enable-shared flag, and supports the `shared' and
-# `disable-shared' LT_INIT options.
-# DEFAULT is either `yes' or `no'.  If omitted, it defaults to `yes'.
-m4_define([_LT_ENABLE_SHARED],
-[m4_define([_LT_ENABLE_SHARED_DEFAULT], [m4_if($1, no, no, yes)])dnl
-AC_ARG_ENABLE([shared],
-    [AS_HELP_STRING([--enable-shared@<:@=PKGS@:>@],
-	[build shared libraries @<:@default=]_LT_ENABLE_SHARED_DEFAULT[@:>@])],
-    [p=${PACKAGE-default}
-    case $enableval in
-    yes) enable_shared=yes ;;
-    no) enable_shared=no ;;
-    *)
-      enable_shared=no
-      # Look at the argument we got.  We use all the common list separators.
-      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
-      for pkg in $enableval; do
-	IFS="$lt_save_ifs"
-	if test "X$pkg" = "X$p"; then
-	  enable_shared=yes
-	fi
-      done
-      IFS="$lt_save_ifs"
-      ;;
-    esac],
-    [enable_shared=]_LT_ENABLE_SHARED_DEFAULT)
-
-    _LT_DECL([build_libtool_libs], [enable_shared], [0],
-	[Whether or not to build shared libraries])
-])# _LT_ENABLE_SHARED
-
-LT_OPTION_DEFINE([LT_INIT], [shared], [_LT_ENABLE_SHARED([yes])])
-LT_OPTION_DEFINE([LT_INIT], [disable-shared], [_LT_ENABLE_SHARED([no])])
-
-# Old names:
-AC_DEFUN([AC_ENABLE_SHARED],
-[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[shared])
-])
-
-AC_DEFUN([AC_DISABLE_SHARED],
-[_LT_SET_OPTION([LT_INIT], [disable-shared])
-])
-
-AU_DEFUN([AM_ENABLE_SHARED], [AC_ENABLE_SHARED($@)])
-AU_DEFUN([AM_DISABLE_SHARED], [AC_DISABLE_SHARED($@)])
-
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AM_ENABLE_SHARED], [])
-dnl AC_DEFUN([AM_DISABLE_SHARED], [])
-
-
-
-# _LT_ENABLE_STATIC([DEFAULT])
-# ----------------------------
-# implement the --enable-static flag, and support the `static' and
-# `disable-static' LT_INIT options.
-# DEFAULT is either `yes' or `no'.  If omitted, it defaults to `yes'.
-m4_define([_LT_ENABLE_STATIC],
-[m4_define([_LT_ENABLE_STATIC_DEFAULT], [m4_if($1, no, no, yes)])dnl
-AC_ARG_ENABLE([static],
-    [AS_HELP_STRING([--enable-static@<:@=PKGS@:>@],
-	[build static libraries @<:@default=]_LT_ENABLE_STATIC_DEFAULT[@:>@])],
-    [p=${PACKAGE-default}
-    case $enableval in
-    yes) enable_static=yes ;;
-    no) enable_static=no ;;
-    *)
-     enable_static=no
-      # Look at the argument we got.  We use all the common list separators.
-      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
-      for pkg in $enableval; do
-	IFS="$lt_save_ifs"
-	if test "X$pkg" = "X$p"; then
-	  enable_static=yes
-	fi
-      done
-      IFS="$lt_save_ifs"
-      ;;
-    esac],
-    [enable_static=]_LT_ENABLE_STATIC_DEFAULT)
-
-    _LT_DECL([build_old_libs], [enable_static], [0],
-	[Whether or not to build static libraries])
-])# _LT_ENABLE_STATIC
-
-LT_OPTION_DEFINE([LT_INIT], [static], [_LT_ENABLE_STATIC([yes])])
-LT_OPTION_DEFINE([LT_INIT], [disable-static], [_LT_ENABLE_STATIC([no])])
-
-# Old names:
-AC_DEFUN([AC_ENABLE_STATIC],
-[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[static])
-])
-
-AC_DEFUN([AC_DISABLE_STATIC],
-[_LT_SET_OPTION([LT_INIT], [disable-static])
-])
-
-AU_DEFUN([AM_ENABLE_STATIC], [AC_ENABLE_STATIC($@)])
-AU_DEFUN([AM_DISABLE_STATIC], [AC_DISABLE_STATIC($@)])
-
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AM_ENABLE_STATIC], [])
-dnl AC_DEFUN([AM_DISABLE_STATIC], [])
-
-
-
-# _LT_ENABLE_FAST_INSTALL([DEFAULT])
-# ----------------------------------
-# implement the --enable-fast-install flag, and support the `fast-install'
-# and `disable-fast-install' LT_INIT options.
-# DEFAULT is either `yes' or `no'.  If omitted, it defaults to `yes'.
-m4_define([_LT_ENABLE_FAST_INSTALL],
-[m4_define([_LT_ENABLE_FAST_INSTALL_DEFAULT], [m4_if($1, no, no, yes)])dnl
-AC_ARG_ENABLE([fast-install],
-    [AS_HELP_STRING([--enable-fast-install@<:@=PKGS@:>@],
-    [optimize for fast installation @<:@default=]_LT_ENABLE_FAST_INSTALL_DEFAULT[@:>@])],
-    [p=${PACKAGE-default}
-    case $enableval in
-    yes) enable_fast_install=yes ;;
-    no) enable_fast_install=no ;;
-    *)
-      enable_fast_install=no
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-# is unlikely to handle the host's binaries.
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-     [m4_case([$1], [ustar],, [pax],,
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-    am__untar="$_am_tar -xf -"
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diff --git a/deps/uv/src/unix/ev/autogen.sh b/deps/uv/src/unix/ev/autogen.sh
deleted file mode 100644
index 087d2aa4e9..0000000000
--- a/deps/uv/src/unix/ev/autogen.sh
+++ /dev/null
@@ -1,6 +0,0 @@
-#!/bin/sh
-
-libtoolize --force
-automake --add-missing --force-missing
-autoreconf
-
diff --git a/deps/uv/src/unix/ev/config.guess b/deps/uv/src/unix/ev/config.guess
deleted file mode 100755
index f32079abda..0000000000
--- a/deps/uv/src/unix/ev/config.guess
+++ /dev/null
@@ -1,1526 +0,0 @@
-#! /bin/sh
-# Attempt to guess a canonical system name.
-#   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-#   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
-#   Free Software Foundation, Inc.
-
-timestamp='2008-01-23'
-
-# This file is free software; you can redistribute it and/or modify it
-# under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
-# 02110-1301, USA.
-#
-# As a special exception to the GNU General Public License, if you
-# distribute this file as part of a program that contains a
-# configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
-
-
-# Originally written by Per Bothner <per@bothner.com>.
-# Please send patches to <config-patches@gnu.org>.  Submit a context
-# diff and a properly formatted ChangeLog entry.
-#
-# This script attempts to guess a canonical system name similar to
-# config.sub.  If it succeeds, it prints the system name on stdout, and
-# exits with 0.  Otherwise, it exits with 1.
-#
-# The plan is that this can be called by configure scripts if you
-# don't specify an explicit build system type.
-
-me=`echo "$0" | sed -e 's,.*/,,'`
-
-usage="\
-Usage: $0 [OPTION]
-
-Output the configuration name of the system \`$me' is run on.
-
-Operation modes:
-  -h, --help         print this help, then exit
-  -t, --time-stamp   print date of last modification, then exit
-  -v, --version      print version number, then exit
-
-Report bugs and patches to <config-patches@gnu.org>."
-
-version="\
-GNU config.guess ($timestamp)
-
-Originally written by Per Bothner.
-Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
-2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
-
-This is free software; see the source for copying conditions.  There is NO
-warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
-
-help="
-Try \`$me --help' for more information."
-
-# Parse command line
-while test $# -gt 0 ; do
-  case $1 in
-    --time-stamp | --time* | -t )
-       echo "$timestamp" ; exit ;;
-    --version | -v )
-       echo "$version" ; exit ;;
-    --help | --h* | -h )
-       echo "$usage"; exit ;;
-    -- )     # Stop option processing
-       shift; break ;;
-    - )	# Use stdin as input.
-       break ;;
-    -* )
-       echo "$me: invalid option $1$help" >&2
-       exit 1 ;;
-    * )
-       break ;;
-  esac
-done
-
-if test $# != 0; then
-  echo "$me: too many arguments$help" >&2
-  exit 1
-fi
-
-trap 'exit 1' 1 2 15
-
-# CC_FOR_BUILD -- compiler used by this script. Note that the use of a
-# compiler to aid in system detection is discouraged as it requires
-# temporary files to be created and, as you can see below, it is a
-# headache to deal with in a portable fashion.
-
-# Historically, `CC_FOR_BUILD' used to be named `HOST_CC'. We still
-# use `HOST_CC' if defined, but it is deprecated.
-
-# Portable tmp directory creation inspired by the Autoconf team.
-
-set_cc_for_build='
-trap "exitcode=\$?; (rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null) && exit \$exitcode" 0 ;
-trap "rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null; exit 1" 1 2 13 15 ;
-: ${TMPDIR=/tmp} ;
- { tmp=`(umask 077 && mktemp -d "$TMPDIR/cgXXXXXX") 2>/dev/null` && test -n "$tmp" && test -d "$tmp" ; } ||
- { test -n "$RANDOM" && tmp=$TMPDIR/cg$$-$RANDOM && (umask 077 && mkdir $tmp) ; } ||
- { tmp=$TMPDIR/cg-$$ && (umask 077 && mkdir $tmp) && echo "Warning: creating insecure temp directory" >&2 ; } ||
- { echo "$me: cannot create a temporary directory in $TMPDIR" >&2 ; exit 1 ; } ;
-dummy=$tmp/dummy ;
-tmpfiles="$dummy.c $dummy.o $dummy.rel $dummy" ;
-case $CC_FOR_BUILD,$HOST_CC,$CC in
- ,,)    echo "int x;" > $dummy.c ;
-	for c in cc gcc c89 c99 ; do
-	  if ($c -c -o $dummy.o $dummy.c) >/dev/null 2>&1 ; then
-	     CC_FOR_BUILD="$c"; break ;
-	  fi ;
-	done ;
-	if test x"$CC_FOR_BUILD" = x ; then
-	  CC_FOR_BUILD=no_compiler_found ;
-	fi
-	;;
- ,,*)   CC_FOR_BUILD=$CC ;;
- ,*,*)  CC_FOR_BUILD=$HOST_CC ;;
-esac ; set_cc_for_build= ;'
-
-# This is needed to find uname on a Pyramid OSx when run in the BSD universe.
-# (ghazi@noc.rutgers.edu 1994-08-24)
-if (test -f /.attbin/uname) >/dev/null 2>&1 ; then
-	PATH=$PATH:/.attbin ; export PATH
-fi
-
-UNAME_MACHINE=`(uname -m) 2>/dev/null` || UNAME_MACHINE=unknown
-UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown
-UNAME_SYSTEM=`(uname -s) 2>/dev/null`  || UNAME_SYSTEM=unknown
-UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown
-
-# Note: order is significant - the case branches are not exclusive.
-
-case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
-    *:NetBSD:*:*)
-	# NetBSD (nbsd) targets should (where applicable) match one or
-	# more of the tupples: *-*-netbsdelf*, *-*-netbsdaout*,
-	# *-*-netbsdecoff* and *-*-netbsd*.  For targets that recently
-	# switched to ELF, *-*-netbsd* would select the old
-	# object file format.  This provides both forward
-	# compatibility and a consistent mechanism for selecting the
-	# object file format.
-	#
-	# Note: NetBSD doesn't particularly care about the vendor
-	# portion of the name.  We always set it to "unknown".
-	sysctl="sysctl -n hw.machine_arch"
-	UNAME_MACHINE_ARCH=`(/sbin/$sysctl 2>/dev/null || \
-	    /usr/sbin/$sysctl 2>/dev/null || echo unknown)`
-	case "${UNAME_MACHINE_ARCH}" in
-	    armeb) machine=armeb-unknown ;;
-	    arm*) machine=arm-unknown ;;
-	    sh3el) machine=shl-unknown ;;
-	    sh3eb) machine=sh-unknown ;;
-	    sh5el) machine=sh5le-unknown ;;
-	    *) machine=${UNAME_MACHINE_ARCH}-unknown ;;
-	esac
-	# The Operating System including object format, if it has switched
-	# to ELF recently, or will in the future.
-	case "${UNAME_MACHINE_ARCH}" in
-	    arm*|i386|m68k|ns32k|sh3*|sparc|vax)
-		eval $set_cc_for_build
-		if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \
-			| grep __ELF__ >/dev/null
-		then
-		    # Once all utilities can be ECOFF (netbsdecoff) or a.out (netbsdaout).
-		    # Return netbsd for either.  FIX?
-		    os=netbsd
-		else
-		    os=netbsdelf
-		fi
-		;;
-	    *)
-	        os=netbsd
-		;;
-	esac
-	# The OS release
-	# Debian GNU/NetBSD machines have a different userland, and
-	# thus, need a distinct triplet. However, they do not need
-	# kernel version information, so it can be replaced with a
-	# suitable tag, in the style of linux-gnu.
-	case "${UNAME_VERSION}" in
-	    Debian*)
-		release='-gnu'
-		;;
-	    *)
-		release=`echo ${UNAME_RELEASE}|sed -e 's/[-_].*/\./'`
-		;;
-	esac
-	# Since CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM:
-	# contains redundant information, the shorter form:
-	# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used.
-	echo "${machine}-${os}${release}"
-	exit ;;
-    *:OpenBSD:*:*)
-	UNAME_MACHINE_ARCH=`arch | sed 's/OpenBSD.//'`
-	echo ${UNAME_MACHINE_ARCH}-unknown-openbsd${UNAME_RELEASE}
-	exit ;;
-    *:ekkoBSD:*:*)
-	echo ${UNAME_MACHINE}-unknown-ekkobsd${UNAME_RELEASE}
-	exit ;;
-    *:SolidBSD:*:*)
-	echo ${UNAME_MACHINE}-unknown-solidbsd${UNAME_RELEASE}
-	exit ;;
-    macppc:MirBSD:*:*)
-	echo powerpc-unknown-mirbsd${UNAME_RELEASE}
-	exit ;;
-    *:MirBSD:*:*)
-	echo ${UNAME_MACHINE}-unknown-mirbsd${UNAME_RELEASE}
-	exit ;;
-    alpha:OSF1:*:*)
-	case $UNAME_RELEASE in
-	*4.0)
-		UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $3}'`
-		;;
-	*5.*)
-	        UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $4}'`
-		;;
-	esac
-	# According to Compaq, /usr/sbin/psrinfo has been available on
-	# OSF/1 and Tru64 systems produced since 1995.  I hope that
-	# covers most systems running today.  This code pipes the CPU
-	# types through head -n 1, so we only detect the type of CPU 0.
-	ALPHA_CPU_TYPE=`/usr/sbin/psrinfo -v | sed -n -e 's/^  The alpha \(.*\) processor.*$/\1/p' | head -n 1`
-	case "$ALPHA_CPU_TYPE" in
-	    "EV4 (21064)")
-		UNAME_MACHINE="alpha" ;;
-	    "EV4.5 (21064)")
-		UNAME_MACHINE="alpha" ;;
-	    "LCA4 (21066/21068)")
-		UNAME_MACHINE="alpha" ;;
-	    "EV5 (21164)")
-		UNAME_MACHINE="alphaev5" ;;
-	    "EV5.6 (21164A)")
-		UNAME_MACHINE="alphaev56" ;;
-	    "EV5.6 (21164PC)")
-		UNAME_MACHINE="alphapca56" ;;
-	    "EV5.7 (21164PC)")
-		UNAME_MACHINE="alphapca57" ;;
-	    "EV6 (21264)")
-		UNAME_MACHINE="alphaev6" ;;
-	    "EV6.7 (21264A)")
-		UNAME_MACHINE="alphaev67" ;;
-	    "EV6.8CB (21264C)")
-		UNAME_MACHINE="alphaev68" ;;
-	    "EV6.8AL (21264B)")
-		UNAME_MACHINE="alphaev68" ;;
-	    "EV6.8CX (21264D)")
-		UNAME_MACHINE="alphaev68" ;;
-	    "EV6.9A (21264/EV69A)")
-		UNAME_MACHINE="alphaev69" ;;
-	    "EV7 (21364)")
-		UNAME_MACHINE="alphaev7" ;;
-	    "EV7.9 (21364A)")
-		UNAME_MACHINE="alphaev79" ;;
-	esac
-	# A Pn.n version is a patched version.
-	# A Vn.n version is a released version.
-	# A Tn.n version is a released field test version.
-	# A Xn.n version is an unreleased experimental baselevel.
-	# 1.2 uses "1.2" for uname -r.
-	echo ${UNAME_MACHINE}-dec-osf`echo ${UNAME_RELEASE} | sed -e 's/^[PVTX]//' | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
-	exit ;;
-    Alpha\ *:Windows_NT*:*)
-	# How do we know it's Interix rather than the generic POSIX subsystem?
-	# Should we change UNAME_MACHINE based on the output of uname instead
-	# of the specific Alpha model?
-	echo alpha-pc-interix
-	exit ;;
-    21064:Windows_NT:50:3)
-	echo alpha-dec-winnt3.5
-	exit ;;
-    Amiga*:UNIX_System_V:4.0:*)
-	echo m68k-unknown-sysv4
-	exit ;;
-    *:[Aa]miga[Oo][Ss]:*:*)
-	echo ${UNAME_MACHINE}-unknown-amigaos
-	exit ;;
-    *:[Mm]orph[Oo][Ss]:*:*)
-	echo ${UNAME_MACHINE}-unknown-morphos
-	exit ;;
-    *:OS/390:*:*)
-	echo i370-ibm-openedition
-	exit ;;
-    *:z/VM:*:*)
-	echo s390-ibm-zvmoe
-	exit ;;
-    *:OS400:*:*)
-        echo powerpc-ibm-os400
-	exit ;;
-    arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*)
-	echo arm-acorn-riscix${UNAME_RELEASE}
-	exit ;;
-    arm:riscos:*:*|arm:RISCOS:*:*)
-	echo arm-unknown-riscos
-	exit ;;
-    SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*)
-	echo hppa1.1-hitachi-hiuxmpp
-	exit ;;
-    Pyramid*:OSx*:*:* | MIS*:OSx*:*:* | MIS*:SMP_DC-OSx*:*:*)
-	# akee@wpdis03.wpafb.af.mil (Earle F. Ake) contributed MIS and NILE.
-	if test "`(/bin/universe) 2>/dev/null`" = att ; then
-		echo pyramid-pyramid-sysv3
-	else
-		echo pyramid-pyramid-bsd
-	fi
-	exit ;;
-    NILE*:*:*:dcosx)
-	echo pyramid-pyramid-svr4
-	exit ;;
-    DRS?6000:unix:4.0:6*)
-	echo sparc-icl-nx6
-	exit ;;
-    DRS?6000:UNIX_SV:4.2*:7* | DRS?6000:isis:4.2*:7*)
-	case `/usr/bin/uname -p` in
-	    sparc) echo sparc-icl-nx7; exit ;;
-	esac ;;
-    sun4H:SunOS:5.*:*)
-	echo sparc-hal-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
-	exit ;;
-    sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*)
-	echo sparc-sun-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
-	exit ;;
-    i86pc:SunOS:5.*:* | i86xen:SunOS:5.*:*)
-	echo i386-pc-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
-	exit ;;
-    sun4*:SunOS:6*:*)
-	# According to config.sub, this is the proper way to canonicalize
-	# SunOS6.  Hard to guess exactly what SunOS6 will be like, but
-	# it's likely to be more like Solaris than SunOS4.
-	echo sparc-sun-solaris3`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
-	exit ;;
-    sun4*:SunOS:*:*)
-	case "`/usr/bin/arch -k`" in
-	    Series*|S4*)
-		UNAME_RELEASE=`uname -v`
-		;;
-	esac
-	# Japanese Language versions have a version number like `4.1.3-JL'.
-	echo sparc-sun-sunos`echo ${UNAME_RELEASE}|sed -e 's/-/_/'`
-	exit ;;
-    sun3*:SunOS:*:*)
-	echo m68k-sun-sunos${UNAME_RELEASE}
-	exit ;;
-    sun*:*:4.2BSD:*)
-	UNAME_RELEASE=`(sed 1q /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null`
-	test "x${UNAME_RELEASE}" = "x" && UNAME_RELEASE=3
-	case "`/bin/arch`" in
-	    sun3)
-		echo m68k-sun-sunos${UNAME_RELEASE}
-		;;
-	    sun4)
-		echo sparc-sun-sunos${UNAME_RELEASE}
-		;;
-	esac
-	exit ;;
-    aushp:SunOS:*:*)
-	echo sparc-auspex-sunos${UNAME_RELEASE}
-	exit ;;
-    # The situation for MiNT is a little confusing.  The machine name
-    # can be virtually everything (everything which is not
-    # "atarist" or "atariste" at least should have a processor
-    # > m68000).  The system name ranges from "MiNT" over "FreeMiNT"
-    # to the lowercase version "mint" (or "freemint").  Finally
-    # the system name "TOS" denotes a system which is actually not
-    # MiNT.  But MiNT is downward compatible to TOS, so this should
-    # be no problem.
-    atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*)
-        echo m68k-atari-mint${UNAME_RELEASE}
-	exit ;;
-    atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*)
-	echo m68k-atari-mint${UNAME_RELEASE}
-        exit ;;
-    *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*)
-        echo m68k-atari-mint${UNAME_RELEASE}
-	exit ;;
-    milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*)
-        echo m68k-milan-mint${UNAME_RELEASE}
-        exit ;;
-    hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*)
-        echo m68k-hades-mint${UNAME_RELEASE}
-        exit ;;
-    *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*)
-        echo m68k-unknown-mint${UNAME_RELEASE}
-        exit ;;
-    m68k:machten:*:*)
-	echo m68k-apple-machten${UNAME_RELEASE}
-	exit ;;
-    powerpc:machten:*:*)
-	echo powerpc-apple-machten${UNAME_RELEASE}
-	exit ;;
-    RISC*:Mach:*:*)
-	echo mips-dec-mach_bsd4.3
-	exit ;;
-    RISC*:ULTRIX:*:*)
-	echo mips-dec-ultrix${UNAME_RELEASE}
-	exit ;;
-    VAX*:ULTRIX*:*:*)
-	echo vax-dec-ultrix${UNAME_RELEASE}
-	exit ;;
-    2020:CLIX:*:* | 2430:CLIX:*:*)
-	echo clipper-intergraph-clix${UNAME_RELEASE}
-	exit ;;
-    mips:*:*:UMIPS | mips:*:*:RISCos)
-	eval $set_cc_for_build
-	sed 's/^	//' << EOF >$dummy.c
-#ifdef __cplusplus
-#include <stdio.h>  /* for printf() prototype */
-	int main (int argc, char *argv[]) {
-#else
-	int main (argc, argv) int argc; char *argv[]; {
-#endif
-	#if defined (host_mips) && defined (MIPSEB)
-	#if defined (SYSTYPE_SYSV)
-	  printf ("mips-mips-riscos%ssysv\n", argv[1]); exit (0);
-	#endif
-	#if defined (SYSTYPE_SVR4)
-	  printf ("mips-mips-riscos%ssvr4\n", argv[1]); exit (0);
-	#endif
-	#if defined (SYSTYPE_BSD43) || defined(SYSTYPE_BSD)
-	  printf ("mips-mips-riscos%sbsd\n", argv[1]); exit (0);
-	#endif
-	#endif
-	  exit (-1);
-	}
-EOF
-	$CC_FOR_BUILD -o $dummy $dummy.c &&
-	  dummyarg=`echo "${UNAME_RELEASE}" | sed -n 's/\([0-9]*\).*/\1/p'` &&
-	  SYSTEM_NAME=`$dummy $dummyarg` &&
-	    { echo "$SYSTEM_NAME"; exit; }
-	echo mips-mips-riscos${UNAME_RELEASE}
-	exit ;;
-    Motorola:PowerMAX_OS:*:*)
-	echo powerpc-motorola-powermax
-	exit ;;
-    Motorola:*:4.3:PL8-*)
-	echo powerpc-harris-powermax
-	exit ;;
-    Night_Hawk:*:*:PowerMAX_OS | Synergy:PowerMAX_OS:*:*)
-	echo powerpc-harris-powermax
-	exit ;;
-    Night_Hawk:Power_UNIX:*:*)
-	echo powerpc-harris-powerunix
-	exit ;;
-    m88k:CX/UX:7*:*)
-	echo m88k-harris-cxux7
-	exit ;;
-    m88k:*:4*:R4*)
-	echo m88k-motorola-sysv4
-	exit ;;
-    m88k:*:3*:R3*)
-	echo m88k-motorola-sysv3
-	exit ;;
-    AViiON:dgux:*:*)
-        # DG/UX returns AViiON for all architectures
-        UNAME_PROCESSOR=`/usr/bin/uname -p`
-	if [ $UNAME_PROCESSOR = mc88100 ] || [ $UNAME_PROCESSOR = mc88110 ]
-	then
-	    if [ ${TARGET_BINARY_INTERFACE}x = m88kdguxelfx ] || \
-	       [ ${TARGET_BINARY_INTERFACE}x = x ]
-	    then
-		echo m88k-dg-dgux${UNAME_RELEASE}
-	    else
-		echo m88k-dg-dguxbcs${UNAME_RELEASE}
-	    fi
-	else
-	    echo i586-dg-dgux${UNAME_RELEASE}
-	fi
- 	exit ;;
-    M88*:DolphinOS:*:*)	# DolphinOS (SVR3)
-	echo m88k-dolphin-sysv3
-	exit ;;
-    M88*:*:R3*:*)
-	# Delta 88k system running SVR3
-	echo m88k-motorola-sysv3
-	exit ;;
-    XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3)
-	echo m88k-tektronix-sysv3
-	exit ;;
-    Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD)
-	echo m68k-tektronix-bsd
-	exit ;;
-    *:IRIX*:*:*)
-	echo mips-sgi-irix`echo ${UNAME_RELEASE}|sed -e 's/-/_/g'`
-	exit ;;
-    ????????:AIX?:[12].1:2)   # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX.
-	echo romp-ibm-aix     # uname -m gives an 8 hex-code CPU id
-	exit ;;               # Note that: echo "'`uname -s`'" gives 'AIX '
-    i*86:AIX:*:*)
-	echo i386-ibm-aix
-	exit ;;
-    ia64:AIX:*:*)
-	if [ -x /usr/bin/oslevel ] ; then
-		IBM_REV=`/usr/bin/oslevel`
-	else
-		IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE}
-	fi
-	echo ${UNAME_MACHINE}-ibm-aix${IBM_REV}
-	exit ;;
-    *:AIX:2:3)
-	if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then
-		eval $set_cc_for_build
-		sed 's/^		//' << EOF >$dummy.c
-		#include <sys/systemcfg.h>
-
-		main()
-			{
-			if (!__power_pc())
-				exit(1);
-			puts("powerpc-ibm-aix3.2.5");
-			exit(0);
-			}
-EOF
-		if $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy`
-		then
-			echo "$SYSTEM_NAME"
-		else
-			echo rs6000-ibm-aix3.2.5
-		fi
-	elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then
-		echo rs6000-ibm-aix3.2.4
-	else
-		echo rs6000-ibm-aix3.2
-	fi
-	exit ;;
-    *:AIX:*:[456])
-	IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'`
-	if /usr/sbin/lsattr -El ${IBM_CPU_ID} | grep ' POWER' >/dev/null 2>&1; then
-		IBM_ARCH=rs6000
-	else
-		IBM_ARCH=powerpc
-	fi
-	if [ -x /usr/bin/oslevel ] ; then
-		IBM_REV=`/usr/bin/oslevel`
-	else
-		IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE}
-	fi
-	echo ${IBM_ARCH}-ibm-aix${IBM_REV}
-	exit ;;
-    *:AIX:*:*)
-	echo rs6000-ibm-aix
-	exit ;;
-    ibmrt:4.4BSD:*|romp-ibm:BSD:*)
-	echo romp-ibm-bsd4.4
-	exit ;;
-    ibmrt:*BSD:*|romp-ibm:BSD:*)            # covers RT/PC BSD and
-	echo romp-ibm-bsd${UNAME_RELEASE}   # 4.3 with uname added to
-	exit ;;                             # report: romp-ibm BSD 4.3
-    *:BOSX:*:*)
-	echo rs6000-bull-bosx
-	exit ;;
-    DPX/2?00:B.O.S.:*:*)
-	echo m68k-bull-sysv3
-	exit ;;
-    9000/[34]??:4.3bsd:1.*:*)
-	echo m68k-hp-bsd
-	exit ;;
-    hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*)
-	echo m68k-hp-bsd4.4
-	exit ;;
-    9000/[34678]??:HP-UX:*:*)
-	HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'`
-	case "${UNAME_MACHINE}" in
-	    9000/31? )            HP_ARCH=m68000 ;;
-	    9000/[34]?? )         HP_ARCH=m68k ;;
-	    9000/[678][0-9][0-9])
-		if [ -x /usr/bin/getconf ]; then
-		    sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null`
-                    sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null`
-                    case "${sc_cpu_version}" in
-                      523) HP_ARCH="hppa1.0" ;; # CPU_PA_RISC1_0
-                      528) HP_ARCH="hppa1.1" ;; # CPU_PA_RISC1_1
-                      532)                      # CPU_PA_RISC2_0
-                        case "${sc_kernel_bits}" in
-                          32) HP_ARCH="hppa2.0n" ;;
-                          64) HP_ARCH="hppa2.0w" ;;
-			  '') HP_ARCH="hppa2.0" ;;   # HP-UX 10.20
-                        esac ;;
-                    esac
-		fi
-		if [ "${HP_ARCH}" = "" ]; then
-		    eval $set_cc_for_build
-		    sed 's/^              //' << EOF >$dummy.c
-
-              #define _HPUX_SOURCE
-              #include <stdlib.h>
-              #include <unistd.h>
-
-              int main ()
-              {
-              #if defined(_SC_KERNEL_BITS)
-                  long bits = sysconf(_SC_KERNEL_BITS);
-              #endif
-                  long cpu  = sysconf (_SC_CPU_VERSION);
-
-                  switch (cpu)
-              	{
-              	case CPU_PA_RISC1_0: puts ("hppa1.0"); break;
-              	case CPU_PA_RISC1_1: puts ("hppa1.1"); break;
-              	case CPU_PA_RISC2_0:
-              #if defined(_SC_KERNEL_BITS)
-              	    switch (bits)
-              		{
-              		case 64: puts ("hppa2.0w"); break;
-              		case 32: puts ("hppa2.0n"); break;
-              		default: puts ("hppa2.0"); break;
-              		} break;
-              #else  /* !defined(_SC_KERNEL_BITS) */
-              	    puts ("hppa2.0"); break;
-              #endif
-              	default: puts ("hppa1.0"); break;
-              	}
-                  exit (0);
-              }
-EOF
-		    (CCOPTS= $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) && HP_ARCH=`$dummy`
-		    test -z "$HP_ARCH" && HP_ARCH=hppa
-		fi ;;
-	esac
-	if [ ${HP_ARCH} = "hppa2.0w" ]
-	then
-	    eval $set_cc_for_build
-
-	    # hppa2.0w-hp-hpux* has a 64-bit kernel and a compiler generating
-	    # 32-bit code.  hppa64-hp-hpux* has the same kernel and a compiler
-	    # generating 64-bit code.  GNU and HP use different nomenclature:
-	    #
-	    # $ CC_FOR_BUILD=cc ./config.guess
-	    # => hppa2.0w-hp-hpux11.23
-	    # $ CC_FOR_BUILD="cc +DA2.0w" ./config.guess
-	    # => hppa64-hp-hpux11.23
-
-	    if echo __LP64__ | (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) |
-		grep __LP64__ >/dev/null
-	    then
-		HP_ARCH="hppa2.0w"
-	    else
-		HP_ARCH="hppa64"
-	    fi
-	fi
-	echo ${HP_ARCH}-hp-hpux${HPUX_REV}
-	exit ;;
-    ia64:HP-UX:*:*)
-	HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'`
-	echo ia64-hp-hpux${HPUX_REV}
-	exit ;;
-    3050*:HI-UX:*:*)
-	eval $set_cc_for_build
-	sed 's/^	//' << EOF >$dummy.c
-	#include <unistd.h>
-	int
-	main ()
-	{
-	  long cpu = sysconf (_SC_CPU_VERSION);
-	  /* The order matters, because CPU_IS_HP_MC68K erroneously returns
-	     true for CPU_PA_RISC1_0.  CPU_IS_PA_RISC returns correct
-	     results, however.  */
-	  if (CPU_IS_PA_RISC (cpu))
-	    {
-	      switch (cpu)
-		{
-		  case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break;
-		  case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break;
-		  case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break;
-		  default: puts ("hppa-hitachi-hiuxwe2"); break;
-		}
-	    }
-	  else if (CPU_IS_HP_MC68K (cpu))
-	    puts ("m68k-hitachi-hiuxwe2");
-	  else puts ("unknown-hitachi-hiuxwe2");
-	  exit (0);
-	}
-EOF
-	$CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy` &&
-		{ echo "$SYSTEM_NAME"; exit; }
-	echo unknown-hitachi-hiuxwe2
-	exit ;;
-    9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:* )
-	echo hppa1.1-hp-bsd
-	exit ;;
-    9000/8??:4.3bsd:*:*)
-	echo hppa1.0-hp-bsd
-	exit ;;
-    *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*)
-	echo hppa1.0-hp-mpeix
-	exit ;;
-    hp7??:OSF1:*:* | hp8?[79]:OSF1:*:* )
-	echo hppa1.1-hp-osf
-	exit ;;
-    hp8??:OSF1:*:*)
-	echo hppa1.0-hp-osf
-	exit ;;
-    i*86:OSF1:*:*)
-	if [ -x /usr/sbin/sysversion ] ; then
-	    echo ${UNAME_MACHINE}-unknown-osf1mk
-	else
-	    echo ${UNAME_MACHINE}-unknown-osf1
-	fi
-	exit ;;
-    parisc*:Lites*:*:*)
-	echo hppa1.1-hp-lites
-	exit ;;
-    C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*)
-	echo c1-convex-bsd
-        exit ;;
-    C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*)
-	if getsysinfo -f scalar_acc
-	then echo c32-convex-bsd
-	else echo c2-convex-bsd
-	fi
-        exit ;;
-    C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*)
-	echo c34-convex-bsd
-        exit ;;
-    C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*)
-	echo c38-convex-bsd
-        exit ;;
-    C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*)
-	echo c4-convex-bsd
-        exit ;;
-    CRAY*Y-MP:*:*:*)
-	echo ymp-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
-	exit ;;
-    CRAY*[A-Z]90:*:*:*)
-	echo ${UNAME_MACHINE}-cray-unicos${UNAME_RELEASE} \
-	| sed -e 's/CRAY.*\([A-Z]90\)/\1/' \
-	      -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \
-	      -e 's/\.[^.]*$/.X/'
-	exit ;;
-    CRAY*TS:*:*:*)
-	echo t90-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
-	exit ;;
-    CRAY*T3E:*:*:*)
-	echo alphaev5-cray-unicosmk${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
-	exit ;;
-    CRAY*SV1:*:*:*)
-	echo sv1-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
-	exit ;;
-    *:UNICOS/mp:*:*)
-	echo craynv-cray-unicosmp${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
-	exit ;;
-    F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*)
-	FUJITSU_PROC=`uname -m | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
-        FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'`
-        FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'`
-        echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
-        exit ;;
-    5000:UNIX_System_V:4.*:*)
-        FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'`
-        FUJITSU_REL=`echo ${UNAME_RELEASE} | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/ /_/'`
-        echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
-	exit ;;
-    i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*)
-	echo ${UNAME_MACHINE}-pc-bsdi${UNAME_RELEASE}
-	exit ;;
-    sparc*:BSD/OS:*:*)
-	echo sparc-unknown-bsdi${UNAME_RELEASE}
-	exit ;;
-    *:BSD/OS:*:*)
-	echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE}
-	exit ;;
-    *:FreeBSD:*:*)
-	case ${UNAME_MACHINE} in
-	    pc98)
-		echo i386-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
-	    amd64)
-		echo x86_64-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
-	    *)
-		echo ${UNAME_MACHINE}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
-	esac
-	exit ;;
-    i*:CYGWIN*:*)
-	echo ${UNAME_MACHINE}-pc-cygwin
-	exit ;;
-    *:MINGW*:*)
-	echo ${UNAME_MACHINE}-pc-mingw32
-	exit ;;
-    i*:windows32*:*)
-    	# uname -m includes "-pc" on this system.
-    	echo ${UNAME_MACHINE}-mingw32
-	exit ;;
-    i*:PW*:*)
-	echo ${UNAME_MACHINE}-pc-pw32
-	exit ;;
-    *:Interix*:[3456]*)
-    	case ${UNAME_MACHINE} in
-	    x86)
-		echo i586-pc-interix${UNAME_RELEASE}
-		exit ;;
-	    EM64T | authenticamd)
-		echo x86_64-unknown-interix${UNAME_RELEASE}
-		exit ;;
-	    IA64)
-		echo ia64-unknown-interix${UNAME_RELEASE}
-		exit ;;
-	esac ;;
-    [345]86:Windows_95:* | [345]86:Windows_98:* | [345]86:Windows_NT:*)
-	echo i${UNAME_MACHINE}-pc-mks
-	exit ;;
-    i*:Windows_NT*:* | Pentium*:Windows_NT*:*)
-	# How do we know it's Interix rather than the generic POSIX subsystem?
-	# It also conflicts with pre-2.0 versions of AT&T UWIN. Should we
-	# UNAME_MACHINE based on the output of uname instead of i386?
-	echo i586-pc-interix
-	exit ;;
-    i*:UWIN*:*)
-	echo ${UNAME_MACHINE}-pc-uwin
-	exit ;;
-    amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*)
-	echo x86_64-unknown-cygwin
-	exit ;;
-    p*:CYGWIN*:*)
-	echo powerpcle-unknown-cygwin
-	exit ;;
-    prep*:SunOS:5.*:*)
-	echo powerpcle-unknown-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
-	exit ;;
-    *:GNU:*:*)
-	# the GNU system
-	echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-gnu`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'`
-	exit ;;
-    *:GNU/*:*:*)
-	# other systems with GNU libc and userland
-	echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr '[A-Z]' '[a-z]'``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-gnu
-	exit ;;
-    i*86:Minix:*:*)
-	echo ${UNAME_MACHINE}-pc-minix
-	exit ;;
-    arm*:Linux:*:*)
-	eval $set_cc_for_build
-	if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \
-	    | grep -q __ARM_EABI__
-	then
-	    echo ${UNAME_MACHINE}-unknown-linux-gnu
-	else
-	    echo ${UNAME_MACHINE}-unknown-linux-gnueabi
-	fi
-	exit ;;
-    avr32*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
-	exit ;;
-    cris:Linux:*:*)
-	echo cris-axis-linux-gnu
-	exit ;;
-    crisv32:Linux:*:*)
-	echo crisv32-axis-linux-gnu
-	exit ;;
-    frv:Linux:*:*)
-    	echo frv-unknown-linux-gnu
-	exit ;;
-    ia64:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
-	exit ;;
-    m32r*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
-	exit ;;
-    m68*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
-	exit ;;
-    mips:Linux:*:*)
-	eval $set_cc_for_build
-	sed 's/^	//' << EOF >$dummy.c
-	#undef CPU
-	#undef mips
-	#undef mipsel
-	#if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
-	CPU=mipsel
-	#else
-	#if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
-	CPU=mips
-	#else
-	CPU=
-	#endif
-	#endif
-EOF
-	eval "`$CC_FOR_BUILD -E $dummy.c 2>/dev/null | sed -n '
-	    /^CPU/{
-		s: ::g
-		p
-	    }'`"
-	test x"${CPU}" != x && { echo "${CPU}-unknown-linux-gnu"; exit; }
-	;;
-    mips64:Linux:*:*)
-	eval $set_cc_for_build
-	sed 's/^	//' << EOF >$dummy.c
-	#undef CPU
-	#undef mips64
-	#undef mips64el
-	#if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
-	CPU=mips64el
-	#else
-	#if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
-	CPU=mips64
-	#else
-	CPU=
-	#endif
-	#endif
-EOF
-	eval "`$CC_FOR_BUILD -E $dummy.c 2>/dev/null | sed -n '
-	    /^CPU/{
-		s: ::g
-		p
-	    }'`"
-	test x"${CPU}" != x && { echo "${CPU}-unknown-linux-gnu"; exit; }
-	;;
-    or32:Linux:*:*)
-	echo or32-unknown-linux-gnu
-	exit ;;
-    ppc:Linux:*:*)
-	echo powerpc-unknown-linux-gnu
-	exit ;;
-    ppc64:Linux:*:*)
-	echo powerpc64-unknown-linux-gnu
-	exit ;;
-    alpha:Linux:*:*)
-	case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in
-	  EV5)   UNAME_MACHINE=alphaev5 ;;
-	  EV56)  UNAME_MACHINE=alphaev56 ;;
-	  PCA56) UNAME_MACHINE=alphapca56 ;;
-	  PCA57) UNAME_MACHINE=alphapca56 ;;
-	  EV6)   UNAME_MACHINE=alphaev6 ;;
-	  EV67)  UNAME_MACHINE=alphaev67 ;;
-	  EV68*) UNAME_MACHINE=alphaev68 ;;
-        esac
-	objdump --private-headers /bin/sh | grep ld.so.1 >/dev/null
-	if test "$?" = 0 ; then LIBC="libc1" ; else LIBC="" ; fi
-	echo ${UNAME_MACHINE}-unknown-linux-gnu${LIBC}
-	exit ;;
-    parisc:Linux:*:* | hppa:Linux:*:*)
-	# Look for CPU level
-	case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in
-	  PA7*) echo hppa1.1-unknown-linux-gnu ;;
-	  PA8*) echo hppa2.0-unknown-linux-gnu ;;
-	  *)    echo hppa-unknown-linux-gnu ;;
-	esac
-	exit ;;
-    parisc64:Linux:*:* | hppa64:Linux:*:*)
-	echo hppa64-unknown-linux-gnu
-	exit ;;
-    s390:Linux:*:* | s390x:Linux:*:*)
-	echo ${UNAME_MACHINE}-ibm-linux
-	exit ;;
-    sh64*:Linux:*:*)
-    	echo ${UNAME_MACHINE}-unknown-linux-gnu
-	exit ;;
-    sh*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
-	exit ;;
-    sparc:Linux:*:* | sparc64:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
-	exit ;;
-    vax:Linux:*:*)
-	echo ${UNAME_MACHINE}-dec-linux-gnu
-	exit ;;
-    x86_64:Linux:*:*)
-	echo x86_64-unknown-linux-gnu
-	exit ;;
-    xtensa*:Linux:*:*)
-    	echo ${UNAME_MACHINE}-unknown-linux-gnu
-	exit ;;
-    i*86:Linux:*:*)
-	# The BFD linker knows what the default object file format is, so
-	# first see if it will tell us. cd to the root directory to prevent
-	# problems with other programs or directories called `ld' in the path.
-	# Set LC_ALL=C to ensure ld outputs messages in English.
-	ld_supported_targets=`cd /; LC_ALL=C ld --help 2>&1 \
-			 | sed -ne '/supported targets:/!d
-				    s/[ 	][ 	]*/ /g
-				    s/.*supported targets: *//
-				    s/ .*//
-				    p'`
-        case "$ld_supported_targets" in
-	  elf32-i386)
-		TENTATIVE="${UNAME_MACHINE}-pc-linux-gnu"
-		;;
-	  a.out-i386-linux)
-		echo "${UNAME_MACHINE}-pc-linux-gnuaout"
-		exit ;;
-	  coff-i386)
-		echo "${UNAME_MACHINE}-pc-linux-gnucoff"
-		exit ;;
-	  "")
-		# Either a pre-BFD a.out linker (linux-gnuoldld) or
-		# one that does not give us useful --help.
-		echo "${UNAME_MACHINE}-pc-linux-gnuoldld"
-		exit ;;
-	esac
-	# Determine whether the default compiler is a.out or elf
-	eval $set_cc_for_build
-	sed 's/^	//' << EOF >$dummy.c
-	#include <features.h>
-	#ifdef __ELF__
-	# ifdef __GLIBC__
-	#  if __GLIBC__ >= 2
-	LIBC=gnu
-	#  else
-	LIBC=gnulibc1
-	#  endif
-	# else
-	LIBC=gnulibc1
-	# endif
-	#else
-	#if defined(__INTEL_COMPILER) || defined(__PGI) || defined(__SUNPRO_C) || defined(__SUNPRO_CC)
-	LIBC=gnu
-	#else
-	LIBC=gnuaout
-	#endif
-	#endif
-	#ifdef __dietlibc__
-	LIBC=dietlibc
-	#endif
-EOF
-	eval "`$CC_FOR_BUILD -E $dummy.c 2>/dev/null | sed -n '
-	    /^LIBC/{
-		s: ::g
-		p
-	    }'`"
-	test x"${LIBC}" != x && {
-		echo "${UNAME_MACHINE}-pc-linux-${LIBC}"
-		exit
-	}
-	test x"${TENTATIVE}" != x && { echo "${TENTATIVE}"; exit; }
-	;;
-    i*86:DYNIX/ptx:4*:*)
-	# ptx 4.0 does uname -s correctly, with DYNIX/ptx in there.
-	# earlier versions are messed up and put the nodename in both
-	# sysname and nodename.
-	echo i386-sequent-sysv4
-	exit ;;
-    i*86:UNIX_SV:4.2MP:2.*)
-        # Unixware is an offshoot of SVR4, but it has its own version
-        # number series starting with 2...
-        # I am not positive that other SVR4 systems won't match this,
-	# I just have to hope.  -- rms.
-        # Use sysv4.2uw... so that sysv4* matches it.
-	echo ${UNAME_MACHINE}-pc-sysv4.2uw${UNAME_VERSION}
-	exit ;;
-    i*86:OS/2:*:*)
-	# If we were able to find `uname', then EMX Unix compatibility
-	# is probably installed.
-	echo ${UNAME_MACHINE}-pc-os2-emx
-	exit ;;
-    i*86:XTS-300:*:STOP)
-	echo ${UNAME_MACHINE}-unknown-stop
-	exit ;;
-    i*86:atheos:*:*)
-	echo ${UNAME_MACHINE}-unknown-atheos
-	exit ;;
-    i*86:syllable:*:*)
-	echo ${UNAME_MACHINE}-pc-syllable
-	exit ;;
-    i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.0*:*)
-	echo i386-unknown-lynxos${UNAME_RELEASE}
-	exit ;;
-    i*86:*DOS:*:*)
-	echo ${UNAME_MACHINE}-pc-msdosdjgpp
-	exit ;;
-    i*86:*:4.*:* | i*86:SYSTEM_V:4.*:*)
-	UNAME_REL=`echo ${UNAME_RELEASE} | sed 's/\/MP$//'`
-	if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then
-		echo ${UNAME_MACHINE}-univel-sysv${UNAME_REL}
-	else
-		echo ${UNAME_MACHINE}-pc-sysv${UNAME_REL}
-	fi
-	exit ;;
-    i*86:*:5:[678]*)
-    	# UnixWare 7.x, OpenUNIX and OpenServer 6.
-	case `/bin/uname -X | grep "^Machine"` in
-	    *486*)	     UNAME_MACHINE=i486 ;;
-	    *Pentium)	     UNAME_MACHINE=i586 ;;
-	    *Pent*|*Celeron) UNAME_MACHINE=i686 ;;
-	esac
-	echo ${UNAME_MACHINE}-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}${UNAME_VERSION}
-	exit ;;
-    i*86:*:3.2:*)
-	if test -f /usr/options/cb.name; then
-		UNAME_REL=`sed -n 's/.*Version //p' </usr/options/cb.name`
-		echo ${UNAME_MACHINE}-pc-isc$UNAME_REL
-	elif /bin/uname -X 2>/dev/null >/dev/null ; then
-		UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')`
-		(/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486
-		(/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \
-			&& UNAME_MACHINE=i586
-		(/bin/uname -X|grep '^Machine.*Pent *II' >/dev/null) \
-			&& UNAME_MACHINE=i686
-		(/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \
-			&& UNAME_MACHINE=i686
-		echo ${UNAME_MACHINE}-pc-sco$UNAME_REL
-	else
-		echo ${UNAME_MACHINE}-pc-sysv32
-	fi
-	exit ;;
-    pc:*:*:*)
-	# Left here for compatibility:
-        # uname -m prints for DJGPP always 'pc', but it prints nothing about
-        # the processor, so we play safe by assuming i386.
-	echo i386-pc-msdosdjgpp
-        exit ;;
-    Intel:Mach:3*:*)
-	echo i386-pc-mach3
-	exit ;;
-    paragon:*:*:*)
-	echo i860-intel-osf1
-	exit ;;
-    i860:*:4.*:*) # i860-SVR4
-	if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then
-	  echo i860-stardent-sysv${UNAME_RELEASE} # Stardent Vistra i860-SVR4
-	else # Add other i860-SVR4 vendors below as they are discovered.
-	  echo i860-unknown-sysv${UNAME_RELEASE}  # Unknown i860-SVR4
-	fi
-	exit ;;
-    mini*:CTIX:SYS*5:*)
-	# "miniframe"
-	echo m68010-convergent-sysv
-	exit ;;
-    mc68k:UNIX:SYSTEM5:3.51m)
-	echo m68k-convergent-sysv
-	exit ;;
-    M680?0:D-NIX:5.3:*)
-	echo m68k-diab-dnix
-	exit ;;
-    M68*:*:R3V[5678]*:*)
-	test -r /sysV68 && { echo 'm68k-motorola-sysv'; exit; } ;;
-    3[345]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0 | SDS2:*:4.0:3.0 | SHG2:*:4.0:3.0 | S7501*:*:4.0:3.0)
-	OS_REL=''
-	test -r /etc/.relid \
-	&& OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
-	/bin/uname -p 2>/dev/null | grep 86 >/dev/null \
-	  && { echo i486-ncr-sysv4.3${OS_REL}; exit; }
-	/bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
-	  && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;;
-    3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*)
-        /bin/uname -p 2>/dev/null | grep 86 >/dev/null \
-          && { echo i486-ncr-sysv4; exit; } ;;
-    m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*)
-	echo m68k-unknown-lynxos${UNAME_RELEASE}
-	exit ;;
-    mc68030:UNIX_System_V:4.*:*)
-	echo m68k-atari-sysv4
-	exit ;;
-    TSUNAMI:LynxOS:2.*:*)
-	echo sparc-unknown-lynxos${UNAME_RELEASE}
-	exit ;;
-    rs6000:LynxOS:2.*:*)
-	echo rs6000-unknown-lynxos${UNAME_RELEASE}
-	exit ;;
-    PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.0*:*)
-	echo powerpc-unknown-lynxos${UNAME_RELEASE}
-	exit ;;
-    SM[BE]S:UNIX_SV:*:*)
-	echo mips-dde-sysv${UNAME_RELEASE}
-	exit ;;
-    RM*:ReliantUNIX-*:*:*)
-	echo mips-sni-sysv4
-	exit ;;
-    RM*:SINIX-*:*:*)
-	echo mips-sni-sysv4
-	exit ;;
-    *:SINIX-*:*:*)
-	if uname -p 2>/dev/null >/dev/null ; then
-		UNAME_MACHINE=`(uname -p) 2>/dev/null`
-		echo ${UNAME_MACHINE}-sni-sysv4
-	else
-		echo ns32k-sni-sysv
-	fi
-	exit ;;
-    PENTIUM:*:4.0*:*) # Unisys `ClearPath HMP IX 4000' SVR4/MP effort
-                      # says <Richard.M.Bartel@ccMail.Census.GOV>
-        echo i586-unisys-sysv4
-        exit ;;
-    *:UNIX_System_V:4*:FTX*)
-	# From Gerald Hewes <hewes@openmarket.com>.
-	# How about differentiating between stratus architectures? -djm
-	echo hppa1.1-stratus-sysv4
-	exit ;;
-    *:*:*:FTX*)
-	# From seanf@swdc.stratus.com.
-	echo i860-stratus-sysv4
-	exit ;;
-    i*86:VOS:*:*)
-	# From Paul.Green@stratus.com.
-	echo ${UNAME_MACHINE}-stratus-vos
-	exit ;;
-    *:VOS:*:*)
-	# From Paul.Green@stratus.com.
-	echo hppa1.1-stratus-vos
-	exit ;;
-    mc68*:A/UX:*:*)
-	echo m68k-apple-aux${UNAME_RELEASE}
-	exit ;;
-    news*:NEWS-OS:6*:*)
-	echo mips-sony-newsos6
-	exit ;;
-    R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*)
-	if [ -d /usr/nec ]; then
-	        echo mips-nec-sysv${UNAME_RELEASE}
-	else
-	        echo mips-unknown-sysv${UNAME_RELEASE}
-	fi
-        exit ;;
-    BeBox:BeOS:*:*)	# BeOS running on hardware made by Be, PPC only.
-	echo powerpc-be-beos
-	exit ;;
-    BeMac:BeOS:*:*)	# BeOS running on Mac or Mac clone, PPC only.
-	echo powerpc-apple-beos
-	exit ;;
-    BePC:BeOS:*:*)	# BeOS running on Intel PC compatible.
-	echo i586-pc-beos
-	exit ;;
-    SX-4:SUPER-UX:*:*)
-	echo sx4-nec-superux${UNAME_RELEASE}
-	exit ;;
-    SX-5:SUPER-UX:*:*)
-	echo sx5-nec-superux${UNAME_RELEASE}
-	exit ;;
-    SX-6:SUPER-UX:*:*)
-	echo sx6-nec-superux${UNAME_RELEASE}
-	exit ;;
-    SX-7:SUPER-UX:*:*)
-	echo sx7-nec-superux${UNAME_RELEASE}
-	exit ;;
-    SX-8:SUPER-UX:*:*)
-	echo sx8-nec-superux${UNAME_RELEASE}
-	exit ;;
-    SX-8R:SUPER-UX:*:*)
-	echo sx8r-nec-superux${UNAME_RELEASE}
-	exit ;;
-    Power*:Rhapsody:*:*)
-	echo powerpc-apple-rhapsody${UNAME_RELEASE}
-	exit ;;
-    *:Rhapsody:*:*)
-	echo ${UNAME_MACHINE}-apple-rhapsody${UNAME_RELEASE}
-	exit ;;
-    *:Darwin:*:*)
-	UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown
-	case $UNAME_PROCESSOR in
-	    unknown) UNAME_PROCESSOR=powerpc ;;
-	esac
-	echo ${UNAME_PROCESSOR}-apple-darwin${UNAME_RELEASE}
-	exit ;;
-    *:procnto*:*:* | *:QNX:[0123456789]*:*)
-	UNAME_PROCESSOR=`uname -p`
-	if test "$UNAME_PROCESSOR" = "x86"; then
-		UNAME_PROCESSOR=i386
-		UNAME_MACHINE=pc
-	fi
-	echo ${UNAME_PROCESSOR}-${UNAME_MACHINE}-nto-qnx${UNAME_RELEASE}
-	exit ;;
-    *:QNX:*:4*)
-	echo i386-pc-qnx
-	exit ;;
-    NSE-?:NONSTOP_KERNEL:*:*)
-	echo nse-tandem-nsk${UNAME_RELEASE}
-	exit ;;
-    NSR-?:NONSTOP_KERNEL:*:*)
-	echo nsr-tandem-nsk${UNAME_RELEASE}
-	exit ;;
-    *:NonStop-UX:*:*)
-	echo mips-compaq-nonstopux
-	exit ;;
-    BS2000:POSIX*:*:*)
-	echo bs2000-siemens-sysv
-	exit ;;
-    DS/*:UNIX_System_V:*:*)
-	echo ${UNAME_MACHINE}-${UNAME_SYSTEM}-${UNAME_RELEASE}
-	exit ;;
-    *:Plan9:*:*)
-	# "uname -m" is not consistent, so use $cputype instead. 386
-	# is converted to i386 for consistency with other x86
-	# operating systems.
-	if test "$cputype" = "386"; then
-	    UNAME_MACHINE=i386
-	else
-	    UNAME_MACHINE="$cputype"
-	fi
-	echo ${UNAME_MACHINE}-unknown-plan9
-	exit ;;
-    *:TOPS-10:*:*)
-	echo pdp10-unknown-tops10
-	exit ;;
-    *:TENEX:*:*)
-	echo pdp10-unknown-tenex
-	exit ;;
-    KS10:TOPS-20:*:* | KL10:TOPS-20:*:* | TYPE4:TOPS-20:*:*)
-	echo pdp10-dec-tops20
-	exit ;;
-    XKL-1:TOPS-20:*:* | TYPE5:TOPS-20:*:*)
-	echo pdp10-xkl-tops20
-	exit ;;
-    *:TOPS-20:*:*)
-	echo pdp10-unknown-tops20
-	exit ;;
-    *:ITS:*:*)
-	echo pdp10-unknown-its
-	exit ;;
-    SEI:*:*:SEIUX)
-        echo mips-sei-seiux${UNAME_RELEASE}
-	exit ;;
-    *:DragonFly:*:*)
-	echo ${UNAME_MACHINE}-unknown-dragonfly`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`
-	exit ;;
-    *:*VMS:*:*)
-    	UNAME_MACHINE=`(uname -p) 2>/dev/null`
-	case "${UNAME_MACHINE}" in
-	    A*) echo alpha-dec-vms ; exit ;;
-	    I*) echo ia64-dec-vms ; exit ;;
-	    V*) echo vax-dec-vms ; exit ;;
-	esac ;;
-    *:XENIX:*:SysV)
-	echo i386-pc-xenix
-	exit ;;
-    i*86:skyos:*:*)
-	echo ${UNAME_MACHINE}-pc-skyos`echo ${UNAME_RELEASE}` | sed -e 's/ .*$//'
-	exit ;;
-    i*86:rdos:*:*)
-	echo ${UNAME_MACHINE}-pc-rdos
-	exit ;;
-esac
-
-#echo '(No uname command or uname output not recognized.)' 1>&2
-#echo "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" 1>&2
-
-eval $set_cc_for_build
-cat >$dummy.c <<EOF
-#ifdef _SEQUENT_
-# include <sys/types.h>
-# include <sys/utsname.h>
-#endif
-main ()
-{
-#if defined (sony)
-#if defined (MIPSEB)
-  /* BFD wants "bsd" instead of "newsos".  Perhaps BFD should be changed,
-     I don't know....  */
-  printf ("mips-sony-bsd\n"); exit (0);
-#else
-#include <sys/param.h>
-  printf ("m68k-sony-newsos%s\n",
-#ifdef NEWSOS4
-          "4"
-#else
-	  ""
-#endif
-         ); exit (0);
-#endif
-#endif
-
-#if defined (__arm) && defined (__acorn) && defined (__unix)
-  printf ("arm-acorn-riscix\n"); exit (0);
-#endif
-
-#if defined (hp300) && !defined (hpux)
-  printf ("m68k-hp-bsd\n"); exit (0);
-#endif
-
-#if defined (NeXT)
-#if !defined (__ARCHITECTURE__)
-#define __ARCHITECTURE__ "m68k"
-#endif
-  int version;
-  version=`(hostinfo | sed -n 's/.*NeXT Mach \([0-9]*\).*/\1/p') 2>/dev/null`;
-  if (version < 4)
-    printf ("%s-next-nextstep%d\n", __ARCHITECTURE__, version);
-  else
-    printf ("%s-next-openstep%d\n", __ARCHITECTURE__, version);
-  exit (0);
-#endif
-
-#if defined (MULTIMAX) || defined (n16)
-#if defined (UMAXV)
-  printf ("ns32k-encore-sysv\n"); exit (0);
-#else
-#if defined (CMU)
-  printf ("ns32k-encore-mach\n"); exit (0);
-#else
-  printf ("ns32k-encore-bsd\n"); exit (0);
-#endif
-#endif
-#endif
-
-#if defined (__386BSD__)
-  printf ("i386-pc-bsd\n"); exit (0);
-#endif
-
-#if defined (sequent)
-#if defined (i386)
-  printf ("i386-sequent-dynix\n"); exit (0);
-#endif
-#if defined (ns32000)
-  printf ("ns32k-sequent-dynix\n"); exit (0);
-#endif
-#endif
-
-#if defined (_SEQUENT_)
-    struct utsname un;
-
-    uname(&un);
-
-    if (strncmp(un.version, "V2", 2) == 0) {
-	printf ("i386-sequent-ptx2\n"); exit (0);
-    }
-    if (strncmp(un.version, "V1", 2) == 0) { /* XXX is V1 correct? */
-	printf ("i386-sequent-ptx1\n"); exit (0);
-    }
-    printf ("i386-sequent-ptx\n"); exit (0);
-
-#endif
-
-#if defined (vax)
-# if !defined (ultrix)
-#  include <sys/param.h>
-#  if defined (BSD)
-#   if BSD == 43
-      printf ("vax-dec-bsd4.3\n"); exit (0);
-#   else
-#    if BSD == 199006
-      printf ("vax-dec-bsd4.3reno\n"); exit (0);
-#    else
-      printf ("vax-dec-bsd\n"); exit (0);
-#    endif
-#   endif
-#  else
-    printf ("vax-dec-bsd\n"); exit (0);
-#  endif
-# else
-    printf ("vax-dec-ultrix\n"); exit (0);
-# endif
-#endif
-
-#if defined (alliant) && defined (i860)
-  printf ("i860-alliant-bsd\n"); exit (0);
-#endif
-
-  exit (1);
-}
-EOF
-
-$CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null && SYSTEM_NAME=`$dummy` &&
-	{ echo "$SYSTEM_NAME"; exit; }
-
-# Apollos put the system type in the environment.
-
-test -d /usr/apollo && { echo ${ISP}-apollo-${SYSTYPE}; exit; }
-
-# Convex versions that predate uname can use getsysinfo(1)
-
-if [ -x /usr/convex/getsysinfo ]
-then
-    case `getsysinfo -f cpu_type` in
-    c1*)
-	echo c1-convex-bsd
-	exit ;;
-    c2*)
-	if getsysinfo -f scalar_acc
-	then echo c32-convex-bsd
-	else echo c2-convex-bsd
-	fi
-	exit ;;
-    c34*)
-	echo c34-convex-bsd
-	exit ;;
-    c38*)
-	echo c38-convex-bsd
-	exit ;;
-    c4*)
-	echo c4-convex-bsd
-	exit ;;
-    esac
-fi
-
-cat >&2 <<EOF
-$0: unable to guess system type
-
-This script, last modified $timestamp, has failed to recognize
-the operating system you are using. It is advised that you
-download the most up to date version of the config scripts from
-
-  http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD
-and
-  http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD
-
-If the version you run ($0) is already up to date, please
-send the following data and any information you think might be
-pertinent to <config-patches@gnu.org> in order to provide the needed
-information to handle your system.
-
-config.guess timestamp = $timestamp
-
-uname -m = `(uname -m) 2>/dev/null || echo unknown`
-uname -r = `(uname -r) 2>/dev/null || echo unknown`
-uname -s = `(uname -s) 2>/dev/null || echo unknown`
-uname -v = `(uname -v) 2>/dev/null || echo unknown`
-
-/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null`
-/bin/uname -X     = `(/bin/uname -X) 2>/dev/null`
-
-hostinfo               = `(hostinfo) 2>/dev/null`
-/bin/universe          = `(/bin/universe) 2>/dev/null`
-/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null`
-/bin/arch              = `(/bin/arch) 2>/dev/null`
-/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null`
-/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null`
-
-UNAME_MACHINE = ${UNAME_MACHINE}
-UNAME_RELEASE = ${UNAME_RELEASE}
-UNAME_SYSTEM  = ${UNAME_SYSTEM}
-UNAME_VERSION = ${UNAME_VERSION}
-EOF
-
-exit 1
-
-# Local variables:
-# eval: (add-hook 'write-file-hooks 'time-stamp)
-# time-stamp-start: "timestamp='"
-# time-stamp-format: "%:y-%02m-%02d"
-# time-stamp-end: "'"
-# End:
diff --git a/deps/uv/src/unix/ev/config.h.in b/deps/uv/src/unix/ev/config.h.in
deleted file mode 100644
index 75da15cce7..0000000000
--- a/deps/uv/src/unix/ev/config.h.in
+++ /dev/null
@@ -1,125 +0,0 @@
-/* config.h.in.  Generated from configure.ac by autoheader.  */
-
-/* Define to 1 if you have the `clock_gettime' function. */
-#undef HAVE_CLOCK_GETTIME
-
-/* "use syscall interface for clock_gettime" */
-#undef HAVE_CLOCK_SYSCALL
-
-/* Define to 1 if you have the <dlfcn.h> header file. */
-#undef HAVE_DLFCN_H
-
-/* Define to 1 if you have the `epoll_ctl' function. */
-#undef HAVE_EPOLL_CTL
-
-/* Define to 1 if you have the `eventfd' function. */
-#undef HAVE_EVENTFD
-
-/* Define to 1 if you have the `inotify_init' function. */
-#undef HAVE_INOTIFY_INIT
-
-/* Define to 1 if you have the <inttypes.h> header file. */
-#undef HAVE_INTTYPES_H
-
-/* Define to 1 if you have the `kqueue' function. */
-#undef HAVE_KQUEUE
-
-/* Define to 1 if you have the `m' library (-lm). */
-#undef HAVE_LIBM
-
-/* Define to 1 if you have the `rt' library (-lrt). */
-#undef HAVE_LIBRT
-
-/* Define to 1 if you have the <memory.h> header file. */
-#undef HAVE_MEMORY_H
-
-/* Define to 1 if you have the `nanosleep' function. */
-#undef HAVE_NANOSLEEP
-
-/* Define to 1 if you have the `poll' function. */
-#undef HAVE_POLL
-
-/* Define to 1 if you have the <poll.h> header file. */
-#undef HAVE_POLL_H
-
-/* Define to 1 if you have the `port_create' function. */
-#undef HAVE_PORT_CREATE
-
-/* Define to 1 if you have the <port.h> header file. */
-#undef HAVE_PORT_H
-
-/* Define to 1 if you have the `select' function. */
-#undef HAVE_SELECT
-
-/* Define to 1 if you have the `signalfd' function. */
-#undef HAVE_SIGNALFD
-
-/* Define to 1 if you have the <stdint.h> header file. */
-#undef HAVE_STDINT_H
-
-/* Define to 1 if you have the <stdlib.h> header file. */
-#undef HAVE_STDLIB_H
-
-/* Define to 1 if you have the <strings.h> header file. */
-#undef HAVE_STRINGS_H
-
-/* Define to 1 if you have the <string.h> header file. */
-#undef HAVE_STRING_H
-
-/* Define to 1 if you have the <sys/epoll.h> header file. */
-#undef HAVE_SYS_EPOLL_H
-
-/* Define to 1 if you have the <sys/eventfd.h> header file. */
-#undef HAVE_SYS_EVENTFD_H
-
-/* Define to 1 if you have the <sys/event.h> header file. */
-#undef HAVE_SYS_EVENT_H
-
-/* Define to 1 if you have the <sys/inotify.h> header file. */
-#undef HAVE_SYS_INOTIFY_H
-
-/* Define to 1 if you have the <sys/select.h> header file. */
-#undef HAVE_SYS_SELECT_H
-
-/* Define to 1 if you have the <sys/signalfd.h> header file. */
-#undef HAVE_SYS_SIGNALFD_H
-
-/* Define to 1 if you have the <sys/stat.h> header file. */
-#undef HAVE_SYS_STAT_H
-
-/* Define to 1 if you have the <sys/types.h> header file. */
-#undef HAVE_SYS_TYPES_H
-
-/* Define to 1 if you have the <unistd.h> header file. */
-#undef HAVE_UNISTD_H
-
-/* Define to the sub-directory in which libtool stores uninstalled libraries.
-   */
-#undef LT_OBJDIR
-
-/* Name of package */
-#undef PACKAGE
-
-/* Define to the address where bug reports for this package should be sent. */
-#undef PACKAGE_BUGREPORT
-
-/* Define to the full name of this package. */
-#undef PACKAGE_NAME
-
-/* Define to the full name and version of this package. */
-#undef PACKAGE_STRING
-
-/* Define to the one symbol short name of this package. */
-#undef PACKAGE_TARNAME
-
-/* Define to the home page for this package. */
-#undef PACKAGE_URL
-
-/* Define to the version of this package. */
-#undef PACKAGE_VERSION
-
-/* Define to 1 if you have the ANSI C header files. */
-#undef STDC_HEADERS
-
-/* Version number of package */
-#undef VERSION
diff --git a/deps/uv/src/unix/ev/config.sub b/deps/uv/src/unix/ev/config.sub
deleted file mode 100755
index 6759825a5b..0000000000
--- a/deps/uv/src/unix/ev/config.sub
+++ /dev/null
@@ -1,1658 +0,0 @@
-#! /bin/sh
-# Configuration validation subroutine script.
-#   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-#   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
-#   Free Software Foundation, Inc.
-
-timestamp='2008-01-16'
-
-# This file is (in principle) common to ALL GNU software.
-# The presence of a machine in this file suggests that SOME GNU software
-# can handle that machine.  It does not imply ALL GNU software can.
-#
-# This file is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
-# 02110-1301, USA.
-#
-# As a special exception to the GNU General Public License, if you
-# distribute this file as part of a program that contains a
-# configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
-
-
-# Please send patches to <config-patches@gnu.org>.  Submit a context
-# diff and a properly formatted ChangeLog entry.
-#
-# Configuration subroutine to validate and canonicalize a configuration type.
-# Supply the specified configuration type as an argument.
-# If it is invalid, we print an error message on stderr and exit with code 1.
-# Otherwise, we print the canonical config type on stdout and succeed.
-
-# This file is supposed to be the same for all GNU packages
-# and recognize all the CPU types, system types and aliases
-# that are meaningful with *any* GNU software.
-# Each package is responsible for reporting which valid configurations
-# it does not support.  The user should be able to distinguish
-# a failure to support a valid configuration from a meaningless
-# configuration.
-
-# The goal of this file is to map all the various variations of a given
-# machine specification into a single specification in the form:
-#	CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM
-# or in some cases, the newer four-part form:
-#	CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
-# It is wrong to echo any other type of specification.
-
-me=`echo "$0" | sed -e 's,.*/,,'`
-
-usage="\
-Usage: $0 [OPTION] CPU-MFR-OPSYS
-       $0 [OPTION] ALIAS
-
-Canonicalize a configuration name.
-
-Operation modes:
-  -h, --help         print this help, then exit
-  -t, --time-stamp   print date of last modification, then exit
-  -v, --version      print version number, then exit
-
-Report bugs and patches to <config-patches@gnu.org>."
-
-version="\
-GNU config.sub ($timestamp)
-
-Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
-2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
-
-This is free software; see the source for copying conditions.  There is NO
-warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
-
-help="
-Try \`$me --help' for more information."
-
-# Parse command line
-while test $# -gt 0 ; do
-  case $1 in
-    --time-stamp | --time* | -t )
-       echo "$timestamp" ; exit ;;
-    --version | -v )
-       echo "$version" ; exit ;;
-    --help | --h* | -h )
-       echo "$usage"; exit ;;
-    -- )     # Stop option processing
-       shift; break ;;
-    - )	# Use stdin as input.
-       break ;;
-    -* )
-       echo "$me: invalid option $1$help"
-       exit 1 ;;
-
-    *local*)
-       # First pass through any local machine types.
-       echo $1
-       exit ;;
-
-    * )
-       break ;;
-  esac
-done
-
-case $# in
- 0) echo "$me: missing argument$help" >&2
-    exit 1;;
- 1) ;;
- *) echo "$me: too many arguments$help" >&2
-    exit 1;;
-esac
-
-# Separate what the user gave into CPU-COMPANY and OS or KERNEL-OS (if any).
-# Here we must recognize all the valid KERNEL-OS combinations.
-maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
-case $maybe_os in
-  nto-qnx* | linux-gnu* | linux-dietlibc | linux-newlib* | linux-uclibc* | \
-  uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | knetbsd*-gnu* | netbsd*-gnu* | \
-  storm-chaos* | os2-emx* | rtmk-nova*)
-    os=-$maybe_os
-    basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`
-    ;;
-  *)
-    basic_machine=`echo $1 | sed 's/-[^-]*$//'`
-    if [ $basic_machine != $1 ]
-    then os=`echo $1 | sed 's/.*-/-/'`
-    else os=; fi
-    ;;
-esac
-
-### Let's recognize common machines as not being operating systems so
-### that things like config.sub decstation-3100 work.  We also
-### recognize some manufacturers as not being operating systems, so we
-### can provide default operating systems below.
-case $os in
-	-sun*os*)
-		# Prevent following clause from handling this invalid input.
-		;;
-	-dec* | -mips* | -sequent* | -encore* | -pc532* | -sgi* | -sony* | \
-	-att* | -7300* | -3300* | -delta* | -motorola* | -sun[234]* | \
-	-unicom* | -ibm* | -next | -hp | -isi* | -apollo | -altos* | \
-	-convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\
-	-c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \
-	-harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \
-	-apple | -axis | -knuth | -cray)
-		os=
-		basic_machine=$1
-		;;
-	-sim | -cisco | -oki | -wec | -winbond)
-		os=
-		basic_machine=$1
-		;;
-	-scout)
-		;;
-	-wrs)
-		os=-vxworks
-		basic_machine=$1
-		;;
-	-chorusos*)
-		os=-chorusos
-		basic_machine=$1
-		;;
- 	-chorusrdb)
- 		os=-chorusrdb
-		basic_machine=$1
- 		;;
-	-hiux*)
-		os=-hiuxwe2
-		;;
-	-sco6)
-		os=-sco5v6
-		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
-		;;
-	-sco5)
-		os=-sco3.2v5
-		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
-		;;
-	-sco4)
-		os=-sco3.2v4
-		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
-		;;
-	-sco3.2.[4-9]*)
-		os=`echo $os | sed -e 's/sco3.2./sco3.2v/'`
-		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
-		;;
-	-sco3.2v[4-9]*)
-		# Don't forget version if it is 3.2v4 or newer.
-		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
-		;;
-	-sco5v6*)
-		# Don't forget version if it is 3.2v4 or newer.
-		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
-		;;
-	-sco*)
-		os=-sco3.2v2
-		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
-		;;
-	-udk*)
-		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
-		;;
-	-isc)
-		os=-isc2.2
-		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
-		;;
-	-clix*)
-		basic_machine=clipper-intergraph
-		;;
-	-isc*)
-		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
-		;;
-	-lynx*)
-		os=-lynxos
-		;;
-	-ptx*)
-		basic_machine=`echo $1 | sed -e 's/86-.*/86-sequent/'`
-		;;
-	-windowsnt*)
-		os=`echo $os | sed -e 's/windowsnt/winnt/'`
-		;;
-	-psos*)
-		os=-psos
-		;;
-	-mint | -mint[0-9]*)
-		basic_machine=m68k-atari
-		os=-mint
-		;;
-esac
-
-# Decode aliases for certain CPU-COMPANY combinations.
-case $basic_machine in
-	# Recognize the basic CPU types without company name.
-	# Some are omitted here because they have special meanings below.
-	1750a | 580 \
-	| a29k \
-	| alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \
-	| alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \
-	| am33_2.0 \
-	| arc | arm | arm[bl]e | arme[lb] | armv[2345] | armv[345][lb] | avr | avr32 \
-	| bfin \
-	| c4x | clipper \
-	| d10v | d30v | dlx | dsp16xx \
-	| fido | fr30 | frv \
-	| h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
-	| i370 | i860 | i960 | ia64 \
-	| ip2k | iq2000 \
-	| m32c | m32r | m32rle | m68000 | m68k | m88k \
-	| maxq | mb | microblaze | mcore | mep \
-	| mips | mipsbe | mipseb | mipsel | mipsle \
-	| mips16 \
-	| mips64 | mips64el \
-	| mips64vr | mips64vrel \
-	| mips64orion | mips64orionel \
-	| mips64vr4100 | mips64vr4100el \
-	| mips64vr4300 | mips64vr4300el \
-	| mips64vr5000 | mips64vr5000el \
-	| mips64vr5900 | mips64vr5900el \
-	| mipsisa32 | mipsisa32el \
-	| mipsisa32r2 | mipsisa32r2el \
-	| mipsisa64 | mipsisa64el \
-	| mipsisa64r2 | mipsisa64r2el \
-	| mipsisa64sb1 | mipsisa64sb1el \
-	| mipsisa64sr71k | mipsisa64sr71kel \
-	| mipstx39 | mipstx39el \
-	| mn10200 | mn10300 \
-	| mt \
-	| msp430 \
-	| nios | nios2 \
-	| ns16k | ns32k \
-	| or32 \
-	| pdp10 | pdp11 | pj | pjl \
-	| powerpc | powerpc64 | powerpc64le | powerpcle | ppcbe \
-	| pyramid \
-	| score \
-	| sh | sh[1234] | sh[24]a | sh[23]e | sh[34]eb | sheb | shbe | shle | sh[1234]le | sh3ele \
-	| sh64 | sh64le \
-	| sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \
-	| sparcv8 | sparcv9 | sparcv9b | sparcv9v \
-	| spu | strongarm \
-	| tahoe | thumb | tic4x | tic80 | tron \
-	| v850 | v850e \
-	| we32k \
-	| x86 | xc16x | xscale | xscalee[bl] | xstormy16 | xtensa \
-	| z8k)
-		basic_machine=$basic_machine-unknown
-		;;
-	m6811 | m68hc11 | m6812 | m68hc12)
-		# Motorola 68HC11/12.
-		basic_machine=$basic_machine-unknown
-		os=-none
-		;;
-	m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65 | z8k)
-		;;
-	ms1)
-		basic_machine=mt-unknown
-		;;
-
-	# We use `pc' rather than `unknown'
-	# because (1) that's what they normally are, and
-	# (2) the word "unknown" tends to confuse beginning users.
-	i*86 | x86_64)
-	  basic_machine=$basic_machine-pc
-	  ;;
-	# Object if more than one company name word.
-	*-*-*)
-		echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
-		exit 1
-		;;
-	# Recognize the basic CPU types with company name.
-	580-* \
-	| a29k-* \
-	| alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \
-	| alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \
-	| alphapca5[67]-* | alpha64pca5[67]-* | arc-* \
-	| arm-*  | armbe-* | armle-* | armeb-* | armv*-* \
-	| avr-* | avr32-* \
-	| bfin-* | bs2000-* \
-	| c[123]* | c30-* | [cjt]90-* | c4x-* | c54x-* | c55x-* | c6x-* \
-	| clipper-* | craynv-* | cydra-* \
-	| d10v-* | d30v-* | dlx-* \
-	| elxsi-* \
-	| f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \
-	| h8300-* | h8500-* \
-	| hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \
-	| i*86-* | i860-* | i960-* | ia64-* \
-	| ip2k-* | iq2000-* \
-	| m32c-* | m32r-* | m32rle-* \
-	| m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \
-	| m88110-* | m88k-* | maxq-* | mcore-* \
-	| mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \
-	| mips16-* \
-	| mips64-* | mips64el-* \
-	| mips64vr-* | mips64vrel-* \
-	| mips64orion-* | mips64orionel-* \
-	| mips64vr4100-* | mips64vr4100el-* \
-	| mips64vr4300-* | mips64vr4300el-* \
-	| mips64vr5000-* | mips64vr5000el-* \
-	| mips64vr5900-* | mips64vr5900el-* \
-	| mipsisa32-* | mipsisa32el-* \
-	| mipsisa32r2-* | mipsisa32r2el-* \
-	| mipsisa64-* | mipsisa64el-* \
-	| mipsisa64r2-* | mipsisa64r2el-* \
-	| mipsisa64sb1-* | mipsisa64sb1el-* \
-	| mipsisa64sr71k-* | mipsisa64sr71kel-* \
-	| mipstx39-* | mipstx39el-* \
-	| mmix-* \
-	| mt-* \
-	| msp430-* \
-	| nios-* | nios2-* \
-	| none-* | np1-* | ns16k-* | ns32k-* \
-	| orion-* \
-	| pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \
-	| powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* | ppcbe-* \
-	| pyramid-* \
-	| romp-* | rs6000-* \
-	| sh-* | sh[1234]-* | sh[24]a-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \
-	| shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \
-	| sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \
-	| sparclite-* \
-	| sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | strongarm-* | sv1-* | sx?-* \
-	| tahoe-* | thumb-* \
-	| tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \
-	| tron-* \
-	| v850-* | v850e-* | vax-* \
-	| we32k-* \
-	| x86-* | x86_64-* | xc16x-* | xps100-* | xscale-* | xscalee[bl]-* \
-	| xstormy16-* | xtensa*-* \
-	| ymp-* \
-	| z8k-*)
-		;;
-	# Recognize the basic CPU types without company name, with glob match.
-	xtensa*)
-		basic_machine=$basic_machine-unknown
-		;;
-	# Recognize the various machine names and aliases which stand
-	# for a CPU type and a company and sometimes even an OS.
-	386bsd)
-		basic_machine=i386-unknown
-		os=-bsd
-		;;
-	3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc)
-		basic_machine=m68000-att
-		;;
-	3b*)
-		basic_machine=we32k-att
-		;;
-	a29khif)
-		basic_machine=a29k-amd
-		os=-udi
-		;;
-    	abacus)
-		basic_machine=abacus-unknown
-		;;
-	adobe68k)
-		basic_machine=m68010-adobe
-		os=-scout
-		;;
-	alliant | fx80)
-		basic_machine=fx80-alliant
-		;;
-	altos | altos3068)
-		basic_machine=m68k-altos
-		;;
-	am29k)
-		basic_machine=a29k-none
-		os=-bsd
-		;;
-	amd64)
-		basic_machine=x86_64-pc
-		;;
-	amd64-*)
-		basic_machine=x86_64-`echo $basic_machine | sed 's/^[^-]*-//'`
-		;;
-	amdahl)
-		basic_machine=580-amdahl
-		os=-sysv
-		;;
-	amiga | amiga-*)
-		basic_machine=m68k-unknown
-		;;
-	amigaos | amigados)
-		basic_machine=m68k-unknown
-		os=-amigaos
-		;;
-	amigaunix | amix)
-		basic_machine=m68k-unknown
-		os=-sysv4
-		;;
-	apollo68)
-		basic_machine=m68k-apollo
-		os=-sysv
-		;;
-	apollo68bsd)
-		basic_machine=m68k-apollo
-		os=-bsd
-		;;
-	aux)
-		basic_machine=m68k-apple
-		os=-aux
-		;;
-	balance)
-		basic_machine=ns32k-sequent
-		os=-dynix
-		;;
-	blackfin)
-		basic_machine=bfin-unknown
-		os=-linux
-		;;
-	blackfin-*)
-		basic_machine=bfin-`echo $basic_machine | sed 's/^[^-]*-//'`
-		os=-linux
-		;;
-	c90)
-		basic_machine=c90-cray
-		os=-unicos
-		;;
-	convex-c1)
-		basic_machine=c1-convex
-		os=-bsd
-		;;
-	convex-c2)
-		basic_machine=c2-convex
-		os=-bsd
-		;;
-	convex-c32)
-		basic_machine=c32-convex
-		os=-bsd
-		;;
-	convex-c34)
-		basic_machine=c34-convex
-		os=-bsd
-		;;
-	convex-c38)
-		basic_machine=c38-convex
-		os=-bsd
-		;;
-	cray | j90)
-		basic_machine=j90-cray
-		os=-unicos
-		;;
-	craynv)
-		basic_machine=craynv-cray
-		os=-unicosmp
-		;;
-	cr16)
-		basic_machine=cr16-unknown
-		os=-elf
-		;;
-	crds | unos)
-		basic_machine=m68k-crds
-		;;
-	crisv32 | crisv32-* | etraxfs*)
-		basic_machine=crisv32-axis
-		;;
-	cris | cris-* | etrax*)
-		basic_machine=cris-axis
-		;;
-	crx)
-		basic_machine=crx-unknown
-		os=-elf
-		;;
-	da30 | da30-*)
-		basic_machine=m68k-da30
-		;;
-	decstation | decstation-3100 | pmax | pmax-* | pmin | dec3100 | decstatn)
-		basic_machine=mips-dec
-		;;
-	decsystem10* | dec10*)
-		basic_machine=pdp10-dec
-		os=-tops10
-		;;
-	decsystem20* | dec20*)
-		basic_machine=pdp10-dec
-		os=-tops20
-		;;
-	delta | 3300 | motorola-3300 | motorola-delta \
-	      | 3300-motorola | delta-motorola)
-		basic_machine=m68k-motorola
-		;;
-	delta88)
-		basic_machine=m88k-motorola
-		os=-sysv3
-		;;
-	djgpp)
-		basic_machine=i586-pc
-		os=-msdosdjgpp
-		;;
-	dpx20 | dpx20-*)
-		basic_machine=rs6000-bull
-		os=-bosx
-		;;
-	dpx2* | dpx2*-bull)
-		basic_machine=m68k-bull
-		os=-sysv3
-		;;
-	ebmon29k)
-		basic_machine=a29k-amd
-		os=-ebmon
-		;;
-	elxsi)
-		basic_machine=elxsi-elxsi
-		os=-bsd
-		;;
-	encore | umax | mmax)
-		basic_machine=ns32k-encore
-		;;
-	es1800 | OSE68k | ose68k | ose | OSE)
-		basic_machine=m68k-ericsson
-		os=-ose
-		;;
-	fx2800)
-		basic_machine=i860-alliant
-		;;
-	genix)
-		basic_machine=ns32k-ns
-		;;
-	gmicro)
-		basic_machine=tron-gmicro
-		os=-sysv
-		;;
-	go32)
-		basic_machine=i386-pc
-		os=-go32
-		;;
-	h3050r* | hiux*)
-		basic_machine=hppa1.1-hitachi
-		os=-hiuxwe2
-		;;
-	h8300hms)
-		basic_machine=h8300-hitachi
-		os=-hms
-		;;
-	h8300xray)
-		basic_machine=h8300-hitachi
-		os=-xray
-		;;
-	h8500hms)
-		basic_machine=h8500-hitachi
-		os=-hms
-		;;
-	harris)
-		basic_machine=m88k-harris
-		os=-sysv3
-		;;
-	hp300-*)
-		basic_machine=m68k-hp
-		;;
-	hp300bsd)
-		basic_machine=m68k-hp
-		os=-bsd
-		;;
-	hp300hpux)
-		basic_machine=m68k-hp
-		os=-hpux
-		;;
-	hp3k9[0-9][0-9] | hp9[0-9][0-9])
-		basic_machine=hppa1.0-hp
-		;;
-	hp9k2[0-9][0-9] | hp9k31[0-9])
-		basic_machine=m68000-hp
-		;;
-	hp9k3[2-9][0-9])
-		basic_machine=m68k-hp
-		;;
-	hp9k6[0-9][0-9] | hp6[0-9][0-9])
-		basic_machine=hppa1.0-hp
-		;;
-	hp9k7[0-79][0-9] | hp7[0-79][0-9])
-		basic_machine=hppa1.1-hp
-		;;
-	hp9k78[0-9] | hp78[0-9])
-		# FIXME: really hppa2.0-hp
-		basic_machine=hppa1.1-hp
-		;;
-	hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893)
-		# FIXME: really hppa2.0-hp
-		basic_machine=hppa1.1-hp
-		;;
-	hp9k8[0-9][13679] | hp8[0-9][13679])
-		basic_machine=hppa1.1-hp
-		;;
-	hp9k8[0-9][0-9] | hp8[0-9][0-9])
-		basic_machine=hppa1.0-hp
-		;;
-	hppa-next)
-		os=-nextstep3
-		;;
-	hppaosf)
-		basic_machine=hppa1.1-hp
-		os=-osf
-		;;
-	hppro)
-		basic_machine=hppa1.1-hp
-		os=-proelf
-		;;
-	i370-ibm* | ibm*)
-		basic_machine=i370-ibm
-		;;
-# I'm not sure what "Sysv32" means.  Should this be sysv3.2?
-	i*86v32)
-		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
-		os=-sysv32
-		;;
-	i*86v4*)
-		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
-		os=-sysv4
-		;;
-	i*86v)
-		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
-		os=-sysv
-		;;
-	i*86sol2)
-		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
-		os=-solaris2
-		;;
-	i386mach)
-		basic_machine=i386-mach
-		os=-mach
-		;;
-	i386-vsta | vsta)
-		basic_machine=i386-unknown
-		os=-vsta
-		;;
-	iris | iris4d)
-		basic_machine=mips-sgi
-		case $os in
-		    -irix*)
-			;;
-		    *)
-			os=-irix4
-			;;
-		esac
-		;;
-	isi68 | isi)
-		basic_machine=m68k-isi
-		os=-sysv
-		;;
-	m68knommu)
-		basic_machine=m68k-unknown
-		os=-linux
-		;;
-	m68knommu-*)
-		basic_machine=m68k-`echo $basic_machine | sed 's/^[^-]*-//'`
-		os=-linux
-		;;
-	m88k-omron*)
-		basic_machine=m88k-omron
-		;;
-	magnum | m3230)
-		basic_machine=mips-mips
-		os=-sysv
-		;;
-	merlin)
-		basic_machine=ns32k-utek
-		os=-sysv
-		;;
-	mingw32)
-		basic_machine=i386-pc
-		os=-mingw32
-		;;
-	mingw32ce)
-		basic_machine=arm-unknown
-		os=-mingw32ce
-		;;
-	miniframe)
-		basic_machine=m68000-convergent
-		;;
-	*mint | -mint[0-9]* | *MiNT | *MiNT[0-9]*)
-		basic_machine=m68k-atari
-		os=-mint
-		;;
-	mips3*-*)
-		basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`
-		;;
-	mips3*)
-		basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`-unknown
-		;;
-	monitor)
-		basic_machine=m68k-rom68k
-		os=-coff
-		;;
-	morphos)
-		basic_machine=powerpc-unknown
-		os=-morphos
-		;;
-	msdos)
-		basic_machine=i386-pc
-		os=-msdos
-		;;
-	ms1-*)
-		basic_machine=`echo $basic_machine | sed -e 's/ms1-/mt-/'`
-		;;
-	mvs)
-		basic_machine=i370-ibm
-		os=-mvs
-		;;
-	ncr3000)
-		basic_machine=i486-ncr
-		os=-sysv4
-		;;
-	netbsd386)
-		basic_machine=i386-unknown
-		os=-netbsd
-		;;
-	netwinder)
-		basic_machine=armv4l-rebel
-		os=-linux
-		;;
-	news | news700 | news800 | news900)
-		basic_machine=m68k-sony
-		os=-newsos
-		;;
-	news1000)
-		basic_machine=m68030-sony
-		os=-newsos
-		;;
-	news-3600 | risc-news)
-		basic_machine=mips-sony
-		os=-newsos
-		;;
-	necv70)
-		basic_machine=v70-nec
-		os=-sysv
-		;;
-	next | m*-next )
-		basic_machine=m68k-next
-		case $os in
-		    -nextstep* )
-			;;
-		    -ns2*)
-		      os=-nextstep2
-			;;
-		    *)
-		      os=-nextstep3
-			;;
-		esac
-		;;
-	nh3000)
-		basic_machine=m68k-harris
-		os=-cxux
-		;;
-	nh[45]000)
-		basic_machine=m88k-harris
-		os=-cxux
-		;;
-	nindy960)
-		basic_machine=i960-intel
-		os=-nindy
-		;;
-	mon960)
-		basic_machine=i960-intel
-		os=-mon960
-		;;
-	nonstopux)
-		basic_machine=mips-compaq
-		os=-nonstopux
-		;;
-	np1)
-		basic_machine=np1-gould
-		;;
-	nsr-tandem)
-		basic_machine=nsr-tandem
-		;;
-	op50n-* | op60c-*)
-		basic_machine=hppa1.1-oki
-		os=-proelf
-		;;
-	openrisc | openrisc-*)
-		basic_machine=or32-unknown
-		;;
-	os400)
-		basic_machine=powerpc-ibm
-		os=-os400
-		;;
-	OSE68000 | ose68000)
-		basic_machine=m68000-ericsson
-		os=-ose
-		;;
-	os68k)
-		basic_machine=m68k-none
-		os=-os68k
-		;;
-	pa-hitachi)
-		basic_machine=hppa1.1-hitachi
-		os=-hiuxwe2
-		;;
-	paragon)
-		basic_machine=i860-intel
-		os=-osf
-		;;
-	parisc)
-		basic_machine=hppa-unknown
-		os=-linux
-		;;
-	parisc-*)
-		basic_machine=hppa-`echo $basic_machine | sed 's/^[^-]*-//'`
-		os=-linux
-		;;
-	pbd)
-		basic_machine=sparc-tti
-		;;
-	pbb)
-		basic_machine=m68k-tti
-		;;
-	pc532 | pc532-*)
-		basic_machine=ns32k-pc532
-		;;
-	pc98)
-		basic_machine=i386-pc
-		;;
-	pc98-*)
-		basic_machine=i386-`echo $basic_machine | sed 's/^[^-]*-//'`
-		;;
-	pentium | p5 | k5 | k6 | nexgen | viac3)
-		basic_machine=i586-pc
-		;;
-	pentiumpro | p6 | 6x86 | athlon | athlon_*)
-		basic_machine=i686-pc
-		;;
-	pentiumii | pentium2 | pentiumiii | pentium3)
-		basic_machine=i686-pc
-		;;
-	pentium4)
-		basic_machine=i786-pc
-		;;
-	pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*)
-		basic_machine=i586-`echo $basic_machine | sed 's/^[^-]*-//'`
-		;;
-	pentiumpro-* | p6-* | 6x86-* | athlon-*)
-		basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'`
-		;;
-	pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*)
-		basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'`
-		;;
-	pentium4-*)
-		basic_machine=i786-`echo $basic_machine | sed 's/^[^-]*-//'`
-		;;
-	pn)
-		basic_machine=pn-gould
-		;;
-	power)	basic_machine=power-ibm
-		;;
-	ppc)	basic_machine=powerpc-unknown
-		;;
-	ppc-*)	basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'`
-		;;
-	ppcle | powerpclittle | ppc-le | powerpc-little)
-		basic_machine=powerpcle-unknown
-		;;
-	ppcle-* | powerpclittle-*)
-		basic_machine=powerpcle-`echo $basic_machine | sed 's/^[^-]*-//'`
-		;;
-	ppc64)	basic_machine=powerpc64-unknown
-		;;
-	ppc64-*) basic_machine=powerpc64-`echo $basic_machine | sed 's/^[^-]*-//'`
-		;;
-	ppc64le | powerpc64little | ppc64-le | powerpc64-little)
-		basic_machine=powerpc64le-unknown
-		;;
-	ppc64le-* | powerpc64little-*)
-		basic_machine=powerpc64le-`echo $basic_machine | sed 's/^[^-]*-//'`
-		;;
-	ps2)
-		basic_machine=i386-ibm
-		;;
-	pw32)
-		basic_machine=i586-unknown
-		os=-pw32
-		;;
-	rdos)
-		basic_machine=i386-pc
-		os=-rdos
-		;;
-	rom68k)
-		basic_machine=m68k-rom68k
-		os=-coff
-		;;
-	rm[46]00)
-		basic_machine=mips-siemens
-		;;
-	rtpc | rtpc-*)
-		basic_machine=romp-ibm
-		;;
-	s390 | s390-*)
-		basic_machine=s390-ibm
-		;;
-	s390x | s390x-*)
-		basic_machine=s390x-ibm
-		;;
-	sa29200)
-		basic_machine=a29k-amd
-		os=-udi
-		;;
-	sb1)
-		basic_machine=mipsisa64sb1-unknown
-		;;
-	sb1el)
-		basic_machine=mipsisa64sb1el-unknown
-		;;
-	sde)
-		basic_machine=mipsisa32-sde
-		os=-elf
-		;;
-	sei)
-		basic_machine=mips-sei
-		os=-seiux
-		;;
-	sequent)
-		basic_machine=i386-sequent
-		;;
-	sh)
-		basic_machine=sh-hitachi
-		os=-hms
-		;;
-	sh5el)
-		basic_machine=sh5le-unknown
-		;;
-	sh64)
-		basic_machine=sh64-unknown
-		;;
-	sparclite-wrs | simso-wrs)
-		basic_machine=sparclite-wrs
-		os=-vxworks
-		;;
-	sps7)
-		basic_machine=m68k-bull
-		os=-sysv2
-		;;
-	spur)
-		basic_machine=spur-unknown
-		;;
-	st2000)
-		basic_machine=m68k-tandem
-		;;
-	stratus)
-		basic_machine=i860-stratus
-		os=-sysv4
-		;;
-	sun2)
-		basic_machine=m68000-sun
-		;;
-	sun2os3)
-		basic_machine=m68000-sun
-		os=-sunos3
-		;;
-	sun2os4)
-		basic_machine=m68000-sun
-		os=-sunos4
-		;;
-	sun3os3)
-		basic_machine=m68k-sun
-		os=-sunos3
-		;;
-	sun3os4)
-		basic_machine=m68k-sun
-		os=-sunos4
-		;;
-	sun4os3)
-		basic_machine=sparc-sun
-		os=-sunos3
-		;;
-	sun4os4)
-		basic_machine=sparc-sun
-		os=-sunos4
-		;;
-	sun4sol2)
-		basic_machine=sparc-sun
-		os=-solaris2
-		;;
-	sun3 | sun3-*)
-		basic_machine=m68k-sun
-		;;
-	sun4)
-		basic_machine=sparc-sun
-		;;
-	sun386 | sun386i | roadrunner)
-		basic_machine=i386-sun
-		;;
-	sv1)
-		basic_machine=sv1-cray
-		os=-unicos
-		;;
-	symmetry)
-		basic_machine=i386-sequent
-		os=-dynix
-		;;
-	t3e)
-		basic_machine=alphaev5-cray
-		os=-unicos
-		;;
-	t90)
-		basic_machine=t90-cray
-		os=-unicos
-		;;
-	tic54x | c54x*)
-		basic_machine=tic54x-unknown
-		os=-coff
-		;;
-	tic55x | c55x*)
-		basic_machine=tic55x-unknown
-		os=-coff
-		;;
-	tic6x | c6x*)
-		basic_machine=tic6x-unknown
-		os=-coff
-		;;
-	tile*)
-		basic_machine=tile-unknown
-		os=-linux-gnu
-		;;
-	tx39)
-		basic_machine=mipstx39-unknown
-		;;
-	tx39el)
-		basic_machine=mipstx39el-unknown
-		;;
-	toad1)
-		basic_machine=pdp10-xkl
-		os=-tops20
-		;;
-	tower | tower-32)
-		basic_machine=m68k-ncr
-		;;
-	tpf)
-		basic_machine=s390x-ibm
-		os=-tpf
-		;;
-	udi29k)
-		basic_machine=a29k-amd
-		os=-udi
-		;;
-	ultra3)
-		basic_machine=a29k-nyu
-		os=-sym1
-		;;
-	v810 | necv810)
-		basic_machine=v810-nec
-		os=-none
-		;;
-	vaxv)
-		basic_machine=vax-dec
-		os=-sysv
-		;;
-	vms)
-		basic_machine=vax-dec
-		os=-vms
-		;;
-	vpp*|vx|vx-*)
-		basic_machine=f301-fujitsu
-		;;
-	vxworks960)
-		basic_machine=i960-wrs
-		os=-vxworks
-		;;
-	vxworks68)
-		basic_machine=m68k-wrs
-		os=-vxworks
-		;;
-	vxworks29k)
-		basic_machine=a29k-wrs
-		os=-vxworks
-		;;
-	w65*)
-		basic_machine=w65-wdc
-		os=-none
-		;;
-	w89k-*)
-		basic_machine=hppa1.1-winbond
-		os=-proelf
-		;;
-	xbox)
-		basic_machine=i686-pc
-		os=-mingw32
-		;;
-	xps | xps100)
-		basic_machine=xps100-honeywell
-		;;
-	ymp)
-		basic_machine=ymp-cray
-		os=-unicos
-		;;
-	z8k-*-coff)
-		basic_machine=z8k-unknown
-		os=-sim
-		;;
-	none)
-		basic_machine=none-none
-		os=-none
-		;;
-
-# Here we handle the default manufacturer of certain CPU types.  It is in
-# some cases the only manufacturer, in others, it is the most popular.
-	w89k)
-		basic_machine=hppa1.1-winbond
-		;;
-	op50n)
-		basic_machine=hppa1.1-oki
-		;;
-	op60c)
-		basic_machine=hppa1.1-oki
-		;;
-	romp)
-		basic_machine=romp-ibm
-		;;
-	mmix)
-		basic_machine=mmix-knuth
-		;;
-	rs6000)
-		basic_machine=rs6000-ibm
-		;;
-	vax)
-		basic_machine=vax-dec
-		;;
-	pdp10)
-		# there are many clones, so DEC is not a safe bet
-		basic_machine=pdp10-unknown
-		;;
-	pdp11)
-		basic_machine=pdp11-dec
-		;;
-	we32k)
-		basic_machine=we32k-att
-		;;
-	sh[1234] | sh[24]a | sh[34]eb | sh[1234]le | sh[23]ele)
-		basic_machine=sh-unknown
-		;;
-	sparc | sparcv8 | sparcv9 | sparcv9b | sparcv9v)
-		basic_machine=sparc-sun
-		;;
-	cydra)
-		basic_machine=cydra-cydrome
-		;;
-	orion)
-		basic_machine=orion-highlevel
-		;;
-	orion105)
-		basic_machine=clipper-highlevel
-		;;
-	mac | mpw | mac-mpw)
-		basic_machine=m68k-apple
-		;;
-	pmac | pmac-mpw)
-		basic_machine=powerpc-apple
-		;;
-	*-unknown)
-		# Make sure to match an already-canonicalized machine name.
-		;;
-	*)
-		echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
-		exit 1
-		;;
-esac
-
-# Here we canonicalize certain aliases for manufacturers.
-case $basic_machine in
-	*-digital*)
-		basic_machine=`echo $basic_machine | sed 's/digital.*/dec/'`
-		;;
-	*-commodore*)
-		basic_machine=`echo $basic_machine | sed 's/commodore.*/cbm/'`
-		;;
-	*)
-		;;
-esac
-
-# Decode manufacturer-specific aliases for certain operating systems.
-
-if [ x"$os" != x"" ]
-then
-case $os in
-        # First match some system type aliases
-        # that might get confused with valid system types.
-	# -solaris* is a basic system type, with this one exception.
-	-solaris1 | -solaris1.*)
-		os=`echo $os | sed -e 's|solaris1|sunos4|'`
-		;;
-	-solaris)
-		os=-solaris2
-		;;
-	-svr4*)
-		os=-sysv4
-		;;
-	-unixware*)
-		os=-sysv4.2uw
-		;;
-	-gnu/linux*)
-		os=`echo $os | sed -e 's|gnu/linux|linux-gnu|'`
-		;;
-	# First accept the basic system types.
-	# The portable systems comes first.
-	# Each alternative MUST END IN A *, to match a version number.
-	# -sysv* is not here because it comes later, after sysvr4.
-	-gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \
-	      | -*vms* | -sco* | -esix* | -isc* | -aix* | -sunos | -sunos[34]*\
-	      | -hpux* | -unos* | -osf* | -luna* | -dgux* | -solaris* | -sym* \
-	      | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \
-	      | -aos* \
-	      | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \
-	      | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \
-	      | -hiux* | -386bsd* | -knetbsd* | -mirbsd* | -netbsd* \
-	      | -openbsd* | -solidbsd* \
-	      | -ekkobsd* | -kfreebsd* | -freebsd* | -riscix* | -lynxos* \
-	      | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \
-	      | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \
-	      | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
-	      | -chorusos* | -chorusrdb* \
-	      | -cygwin* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
-	      | -mingw32* | -linux-gnu* | -linux-newlib* | -linux-uclibc* \
-	      | -uxpv* | -beos* | -mpeix* | -udk* \
-	      | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \
-	      | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
-	      | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* \
-	      | -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \
-	      | -morphos* | -superux* | -rtmk* | -rtmk-nova* | -windiss* \
-	      | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \
-	      | -skyos* | -haiku* | -rdos* | -toppers* | -drops*)
-	# Remember, each alternative MUST END IN *, to match a version number.
-		;;
-	-qnx*)
-		case $basic_machine in
-		    x86-* | i*86-*)
-			;;
-		    *)
-			os=-nto$os
-			;;
-		esac
-		;;
-	-nto-qnx*)
-		;;
-	-nto*)
-		os=`echo $os | sed -e 's|nto|nto-qnx|'`
-		;;
-	-sim | -es1800* | -hms* | -xray | -os68k* | -none* | -v88r* \
-	      | -windows* | -osx | -abug | -netware* | -os9* | -beos* | -haiku* \
-	      | -macos* | -mpw* | -magic* | -mmixware* | -mon960* | -lnews*)
-		;;
-	-mac*)
-		os=`echo $os | sed -e 's|mac|macos|'`
-		;;
-	-linux-dietlibc)
-		os=-linux-dietlibc
-		;;
-	-linux*)
-		os=`echo $os | sed -e 's|linux|linux-gnu|'`
-		;;
-	-sunos5*)
-		os=`echo $os | sed -e 's|sunos5|solaris2|'`
-		;;
-	-sunos6*)
-		os=`echo $os | sed -e 's|sunos6|solaris3|'`
-		;;
-	-opened*)
-		os=-openedition
-		;;
-        -os400*)
-		os=-os400
-		;;
-	-wince*)
-		os=-wince
-		;;
-	-osfrose*)
-		os=-osfrose
-		;;
-	-osf*)
-		os=-osf
-		;;
-	-utek*)
-		os=-bsd
-		;;
-	-dynix*)
-		os=-bsd
-		;;
-	-acis*)
-		os=-aos
-		;;
-	-atheos*)
-		os=-atheos
-		;;
-	-syllable*)
-		os=-syllable
-		;;
-	-386bsd)
-		os=-bsd
-		;;
-	-ctix* | -uts*)
-		os=-sysv
-		;;
-	-nova*)
-		os=-rtmk-nova
-		;;
-	-ns2 )
-		os=-nextstep2
-		;;
-	-nsk*)
-		os=-nsk
-		;;
-	# Preserve the version number of sinix5.
-	-sinix5.*)
-		os=`echo $os | sed -e 's|sinix|sysv|'`
-		;;
-	-sinix*)
-		os=-sysv4
-		;;
-        -tpf*)
-		os=-tpf
-		;;
-	-triton*)
-		os=-sysv3
-		;;
-	-oss*)
-		os=-sysv3
-		;;
-	-svr4)
-		os=-sysv4
-		;;
-	-svr3)
-		os=-sysv3
-		;;
-	-sysvr4)
-		os=-sysv4
-		;;
-	# This must come after -sysvr4.
-	-sysv*)
-		;;
-	-ose*)
-		os=-ose
-		;;
-	-es1800*)
-		os=-ose
-		;;
-	-xenix)
-		os=-xenix
-		;;
-	-*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*)
-		os=-mint
-		;;
-	-aros*)
-		os=-aros
-		;;
-	-kaos*)
-		os=-kaos
-		;;
-	-zvmoe)
-		os=-zvmoe
-		;;
-	-none)
-		;;
-	*)
-		# Get rid of the `-' at the beginning of $os.
-		os=`echo $os | sed 's/[^-]*-//'`
-		echo Invalid configuration \`$1\': system \`$os\' not recognized 1>&2
-		exit 1
-		;;
-esac
-else
-
-# Here we handle the default operating systems that come with various machines.
-# The value should be what the vendor currently ships out the door with their
-# machine or put another way, the most popular os provided with the machine.
-
-# Note that if you're going to try to match "-MANUFACTURER" here (say,
-# "-sun"), then you have to tell the case statement up towards the top
-# that MANUFACTURER isn't an operating system.  Otherwise, code above
-# will signal an error saying that MANUFACTURER isn't an operating
-# system, and we'll never get to this point.
-
-case $basic_machine in
-        score-*)
-		os=-elf
-		;;
-        spu-*)
-		os=-elf
-		;;
-	*-acorn)
-		os=-riscix1.2
-		;;
-	arm*-rebel)
-		os=-linux
-		;;
-	arm*-semi)
-		os=-aout
-		;;
-        c4x-* | tic4x-*)
-        	os=-coff
-		;;
-	# This must come before the *-dec entry.
-	pdp10-*)
-		os=-tops20
-		;;
-	pdp11-*)
-		os=-none
-		;;
-	*-dec | vax-*)
-		os=-ultrix4.2
-		;;
-	m68*-apollo)
-		os=-domain
-		;;
-	i386-sun)
-		os=-sunos4.0.2
-		;;
-	m68000-sun)
-		os=-sunos3
-		# This also exists in the configure program, but was not the
-		# default.
-		# os=-sunos4
-		;;
-	m68*-cisco)
-		os=-aout
-		;;
-        mep-*)
-		os=-elf
-		;;
-	mips*-cisco)
-		os=-elf
-		;;
-	mips*-*)
-		os=-elf
-		;;
-	or32-*)
-		os=-coff
-		;;
-	*-tti)	# must be before sparc entry or we get the wrong os.
-		os=-sysv3
-		;;
-	sparc-* | *-sun)
-		os=-sunos4.1.1
-		;;
-	*-be)
-		os=-beos
-		;;
-	*-haiku)
-		os=-haiku
-		;;
-	*-ibm)
-		os=-aix
-		;;
-    	*-knuth)
-		os=-mmixware
-		;;
-	*-wec)
-		os=-proelf
-		;;
-	*-winbond)
-		os=-proelf
-		;;
-	*-oki)
-		os=-proelf
-		;;
-	*-hp)
-		os=-hpux
-		;;
-	*-hitachi)
-		os=-hiux
-		;;
-	i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent)
-		os=-sysv
-		;;
-	*-cbm)
-		os=-amigaos
-		;;
-	*-dg)
-		os=-dgux
-		;;
-	*-dolphin)
-		os=-sysv3
-		;;
-	m68k-ccur)
-		os=-rtu
-		;;
-	m88k-omron*)
-		os=-luna
-		;;
-	*-next )
-		os=-nextstep
-		;;
-	*-sequent)
-		os=-ptx
-		;;
-	*-crds)
-		os=-unos
-		;;
-	*-ns)
-		os=-genix
-		;;
-	i370-*)
-		os=-mvs
-		;;
-	*-next)
-		os=-nextstep3
-		;;
-	*-gould)
-		os=-sysv
-		;;
-	*-highlevel)
-		os=-bsd
-		;;
-	*-encore)
-		os=-bsd
-		;;
-	*-sgi)
-		os=-irix
-		;;
-	*-siemens)
-		os=-sysv4
-		;;
-	*-masscomp)
-		os=-rtu
-		;;
-	f30[01]-fujitsu | f700-fujitsu)
-		os=-uxpv
-		;;
-	*-rom68k)
-		os=-coff
-		;;
-	*-*bug)
-		os=-coff
-		;;
-	*-apple)
-		os=-macos
-		;;
-	*-atari*)
-		os=-mint
-		;;
-	*)
-		os=-none
-		;;
-esac
-fi
-
-# Here we handle the case where we know the os, and the CPU type, but not the
-# manufacturer.  We pick the logical manufacturer.
-vendor=unknown
-case $basic_machine in
-	*-unknown)
-		case $os in
-			-riscix*)
-				vendor=acorn
-				;;
-			-sunos*)
-				vendor=sun
-				;;
-			-aix*)
-				vendor=ibm
-				;;
-			-beos*)
-				vendor=be
-				;;
-			-hpux*)
-				vendor=hp
-				;;
-			-mpeix*)
-				vendor=hp
-				;;
-			-hiux*)
-				vendor=hitachi
-				;;
-			-unos*)
-				vendor=crds
-				;;
-			-dgux*)
-				vendor=dg
-				;;
-			-luna*)
-				vendor=omron
-				;;
-			-genix*)
-				vendor=ns
-				;;
-			-mvs* | -opened*)
-				vendor=ibm
-				;;
-			-os400*)
-				vendor=ibm
-				;;
-			-ptx*)
-				vendor=sequent
-				;;
-			-tpf*)
-				vendor=ibm
-				;;
-			-vxsim* | -vxworks* | -windiss*)
-				vendor=wrs
-				;;
-			-aux*)
-				vendor=apple
-				;;
-			-hms*)
-				vendor=hitachi
-				;;
-			-mpw* | -macos*)
-				vendor=apple
-				;;
-			-*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*)
-				vendor=atari
-				;;
-			-vos*)
-				vendor=stratus
-				;;
-		esac
-		basic_machine=`echo $basic_machine | sed "s/unknown/$vendor/"`
-		;;
-esac
-
-echo $basic_machine$os
-exit
-
-# Local variables:
-# eval: (add-hook 'write-file-hooks 'time-stamp)
-# time-stamp-start: "timestamp='"
-# time-stamp-format: "%:y-%02m-%02d"
-# time-stamp-end: "'"
-# End:
diff --git a/deps/uv/src/unix/ev/config_aix.h b/deps/uv/src/unix/ev/config_aix.h
deleted file mode 100644
index 4eb075de22..0000000000
--- a/deps/uv/src/unix/ev/config_aix.h
+++ /dev/null
@@ -1,122 +0,0 @@
-/* config.h.  Generated from config.h.in by configure.  */
-/* config.h.in.  Generated from configure.ac by autoheader.  */
-
-/* Define to 1 if you have the `clock_gettime' function. */
-#define HAVE_CLOCK_GETTIME 1
-
-/* "use syscall interface for clock_gettime" */
-/* #undef HAVE_CLOCK_SYSCALL */
-
-/* Define to 1 if you have the <dlfcn.h> header file. */
-#define HAVE_DLFCN_H 1
-
-/* Define to 1 if you have the `epoll_ctl' function. */
-/* #undef HAVE_EPOLL_CTL */
-
-/* Define to 1 if you have the `eventfd' function. */
-/* #undef HAVE_EVENTFD */
-
-/* Define to 1 if you have the `inotify_init' function. */
-/* #undef HAVE_INOTIFY_INIT */
-
-/* Define to 1 if you have the <inttypes.h> header file. */
-#define HAVE_INTTYPES_H 1
-
-/* Define to 1 if you have the `kqueue' function. */
-/* #undef HAVE_KQUEUE */
-
-/* Define to 1 if you have the `m' library (-lm). */
-#define HAVE_LIBM 1
-
-/* Define to 1 if you have the `rt' library (-lrt). */
-#define HAVE_LIBRT 1
-
-/* Define to 1 if you have the <memory.h> header file. */
-#define HAVE_MEMORY_H 1
-
-/* Define to 1 if you have the `nanosleep' function. */
-#define HAVE_NANOSLEEP 1
-
-/* Define to 1 if you have the `poll' function. */
-#define HAVE_POLL 1
-
-/* Define to 1 if you have the <poll.h> header file. */
-#define HAVE_POLL_H 1
-
-/* Define to 1 if you have the `port_create' function. */
-/* #undef HAVE_PORT_CREATE */
-
-/* Define to 1 if you have the <port.h> header file. */
-#define HAVE_PORT_H 1
-
-/* Define to 1 if you have the `select' function. */
-#define HAVE_SELECT 1
-
-/* Define to 1 if you have the `signalfd' function. */
-/* #undef HAVE_SIGNALFD */
-
-/* Define to 1 if you have the <stdint.h> header file. */
-#define HAVE_STDINT_H 1
-
-/* Define to 1 if you have the <stdlib.h> header file. */
-#define HAVE_STDLIB_H 1
-
-/* Define to 1 if you have the <strings.h> header file. */
-#define HAVE_STRINGS_H 1
-
-/* Define to 1 if you have the <string.h> header file. */
-#define HAVE_STRING_H 1
-
-/* Define to 1 if you have the <sys/epoll.h> header file. */
-/* #undef HAVE_SYS_EPOLL_H */
-
-/* Define to 1 if you have the <sys/eventfd.h> header file. */
-/* #undef HAVE_SYS_EVENTFD_H */
-
-/* Define to 1 if you have the <sys/event.h> header file. */
-/* #undef HAVE_SYS_EVENT_H */
-
-/* Define to 1 if you have the <sys/inotify.h> header file. */
-/* #undef HAVE_SYS_INOTIFY_H */
-
-/* Define to 1 if you have the <sys/queue.h> header file. */
-#define HAVE_SYS_QUEUE_H 1
-
-/* Define to 1 if you have the <sys/select.h> header file. */
-#define HAVE_SYS_SELECT_H 1
-
-/* Define to 1 if you have the <sys/signalfd.h> header file. */
-/* #undef HAVE_SYS_SIGNALFD_H */
-
-/* Define to 1 if you have the <sys/stat.h> header file. */
-#define HAVE_SYS_STAT_H 1
-
-/* Define to 1 if you have the <sys/types.h> header file. */
-#define HAVE_SYS_TYPES_H 1
-
-/* Define to 1 if you have the <unistd.h> header file. */
-#define HAVE_UNISTD_H 1
-
-/* Name of package */
-#define PACKAGE "libev"
-
-/* Define to the address where bug reports for this package should be sent. */
-#define PACKAGE_BUGREPORT ""
-
-/* Define to the full name of this package. */
-#define PACKAGE_NAME ""
-
-/* Define to the full name and version of this package. */
-#define PACKAGE_STRING ""
-
-/* Define to the one symbol short name of this package. */
-#define PACKAGE_TARNAME ""
-
-/* Define to the version of this package. */
-#define PACKAGE_VERSION ""
-
-/* Define to 1 if you have the ANSI C header files. */
-#define STDC_HEADERS 1
-
-/* Version number of package */
-#define VERSION "3.9"
diff --git a/deps/uv/src/unix/ev/config_cygwin.h b/deps/uv/src/unix/ev/config_cygwin.h
deleted file mode 100644
index 1f6f6d98c8..0000000000
--- a/deps/uv/src/unix/ev/config_cygwin.h
+++ /dev/null
@@ -1,123 +0,0 @@
-/* config.h.  Generated from config.h.in by configure.  */
-/* config.h.in.  Generated from configure.ac by autoheader.  */
-
-/* Define to 1 if you have the `clock_gettime' function. */
-/* #undef HAVE_CLOCK_GETTIME */
-
-/* "use syscall interface for clock_gettime" */
-/* #undef HAVE_CLOCK_SYSCALL */
-
-/* Define to 1 if you have the <dlfcn.h> header file. */
-#define HAVE_DLFCN_H 1
-
-/* Define to 1 if you have the `epoll_ctl' function. */
-/* #undef HAVE_EPOLL_CTL */
-
-/* Define to 1 if you have the `eventfd' function. */
-/* #undef HAVE_EVENTFD */
-
-/* Define to 1 if you have the `inotify_init' function. */
-/* #undef HAVE_INOTIFY_INIT */
-
-/* Define to 1 if you have the <inttypes.h> header file. */
-#define HAVE_INTTYPES_H 1
-
-/* Define to 1 if you have the `kqueue' function. */
-/* #undef HAVE_KQUEUE */
-
-/* Define to 1 if you have the `m' library (-lm). */
-#define HAVE_LIBM 1
-
-/* Define to 1 if you have the `rt' library (-lrt). */
-/* #undef HAVE_LIBRT */
-
-/* Define to 1 if you have the <memory.h> header file. */
-#define HAVE_MEMORY_H 1
-
-/* Define to 1 if you have the `nanosleep' function. */
-/* #undef HAVE_NANOSLEEP */
-
-/* Define to 1 if you have the `poll' function. */
-#define HAVE_POLL 1
-
-/* Define to 1 if you have the <poll.h> header file. */
-#define HAVE_POLL_H 1
-
-/* Define to 1 if you have the `port_create' function. */
-/* #undef HAVE_PORT_CREATE */
-
-/* Define to 1 if you have the <port.h> header file. */
-/* #undef HAVE_PORT_H */
-
-/* Define to 1 if you have the `select' function. */
-#define HAVE_SELECT 1
-
-/* Define to 1 if you have the <stdint.h> header file. */
-#define HAVE_STDINT_H 1
-
-/* Define to 1 if you have the <stdlib.h> header file. */
-#define HAVE_STDLIB_H 1
-
-/* Define to 1 if you have the <strings.h> header file. */
-#define HAVE_STRINGS_H 1
-
-/* Define to 1 if you have the <string.h> header file. */
-#define HAVE_STRING_H 1
-
-/* Define to 1 if you have the <sys/epoll.h> header file. */
-/* #undef HAVE_SYS_EPOLL_H */
-
-/* Define to 1 if you have the <sys/eventfd.h> header file. */
-/* #undef HAVE_SYS_EVENTFD_H */
-
-/* Define to 1 if you have the <sys/event.h> header file. */
-/* #undef HAVE_SYS_EVENT_H */
-
-/* Define to 1 if you have the <sys/inotify.h> header file. */
-/* #undef HAVE_SYS_INOTIFY_H */
-
-/* Define to 1 if you have the <sys/queue.h> header file. */
-#define HAVE_SYS_QUEUE_H 1
-
-/* Define to 1 if you have the <sys/select.h> header file. */
-#define HAVE_SYS_SELECT_H 1
-
-/* Define to 1 if you have the <sys/stat.h> header file. */
-#define HAVE_SYS_STAT_H 1
-
-/* Define to 1 if you have the <sys/types.h> header file. */
-#define HAVE_SYS_TYPES_H 1
-
-/* Define to 1 if you have the <unistd.h> header file. */
-#define HAVE_UNISTD_H 1
-
-/* Define to the sub-directory in which libtool stores uninstalled libraries.
-   */
-#define LT_OBJDIR ".libs/"
-
-/* Name of package */
-#define PACKAGE "libev"
-
-/* Define to the address where bug reports for this package should be sent. */
-#define PACKAGE_BUGREPORT ""
-
-/* Define to the full name of this package. */
-#define PACKAGE_NAME ""
-
-/* Define to the full name and version of this package. */
-#define PACKAGE_STRING ""
-
-/* Define to the one symbol short name of this package. */
-#define PACKAGE_TARNAME ""
-
-/* Define to the home page for this package. */
-#define PACKAGE_URL ""
-
-/* Define to the version of this package. */
-#define PACKAGE_VERSION ""
-
-/* Define to 1 if you have the ANSI C header files. */
-#define STDC_HEADERS 1
-
-/* Version number of package */
-#define VERSION "3.9"
diff --git a/deps/uv/src/unix/ev/config_darwin.h b/deps/uv/src/unix/ev/config_darwin.h
deleted file mode 100644
index 03e3b219ec..0000000000
--- a/deps/uv/src/unix/ev/config_darwin.h
+++ /dev/null
@@ -1,122 +0,0 @@
-/* config.h.  Generated from config.h.in by configure.  */
-/* config.h.in.  Generated from configure.ac by autoheader.  */
-
-/* Define to 1 if you have the `clock_gettime' function. */
-/* #undef HAVE_CLOCK_GETTIME */
-
-/* "use syscall interface for clock_gettime" */
-/* #undef HAVE_CLOCK_SYSCALL */
-
-/* Define to 1 if you have the <dlfcn.h> header file. */
-#define HAVE_DLFCN_H 1
-
-/* Define to 1 if you have the `epoll_ctl' function. */
-/* #undef HAVE_EPOLL_CTL */
-
-/* Define to 1 if you have the `eventfd' function. */
-/* #undef HAVE_EVENTFD */
-
-/* Define to 1 if you have the `inotify_init' function. */
-/* #undef HAVE_INOTIFY_INIT */
-
-/* Define to 1 if you have the <inttypes.h> header file. */
-#define HAVE_INTTYPES_H 1
-
-/* Define to 1 if you have the `kqueue' function. */
-#define HAVE_KQUEUE 1
-
-/* Define to 1 if you have the `m' library (-lm). */
-#define HAVE_LIBM 1
-
-/* Define to 1 if you have the `rt' library (-lrt). */
-/* #undef HAVE_LIBRT */
-
-/* Define to 1 if you have the <memory.h> header file. */
-#define HAVE_MEMORY_H 1
-
-/* Define to 1 if you have the `nanosleep' function. */
-/* #undef HAVE_NANOSLEEP */
-
-/* Define to 1 if you have the `poll' function. */
-#define HAVE_POLL 1
-
-/* Define to 1 if you have the <poll.h> header file. */
-#define HAVE_POLL_H 1
-
-/* Define to 1 if you have the `port_create' function. */
-/* #undef HAVE_PORT_CREATE */
-
-/* Define to 1 if you have the <port.h> header file. */
-/* #undef HAVE_PORT_H */
-
-/* Define to 1 if you have the `select' function. */
-#define HAVE_SELECT 1
-
-/* Define to 1 if you have the `signalfd' function. */
-/* #undef HAVE_SIGNALFD */
-
-/* Define to 1 if you have the <stdint.h> header file. */
-#define HAVE_STDINT_H 1
-
-/* Define to 1 if you have the <stdlib.h> header file. */
-#define HAVE_STDLIB_H 1
-
-/* Define to 1 if you have the <strings.h> header file. */
-#define HAVE_STRINGS_H 1
-
-/* Define to 1 if you have the <string.h> header file. */
-#define HAVE_STRING_H 1
-
-/* Define to 1 if you have the <sys/epoll.h> header file. */
-/* #undef HAVE_SYS_EPOLL_H */
-
-/* Define to 1 if you have the <sys/eventfd.h> header file. */
-/* #undef HAVE_SYS_EVENTFD_H */
-
-/* Define to 1 if you have the <sys/event.h> header file. */
-#define HAVE_SYS_EVENT_H 1
-
-/* Define to 1 if you have the <sys/inotify.h> header file. */
-/* #undef HAVE_SYS_INOTIFY_H */
-
-/* Define to 1 if you have the <sys/queue.h> header file. */
-#define HAVE_SYS_QUEUE_H 1
-
-/* Define to 1 if you have the <sys/select.h> header file. */
-#define HAVE_SYS_SELECT_H 1
-
-/* Define to 1 if you have the <sys/signalfd.h> header file. */
-/* #undef HAVE_SYS_SIGNALFD_H */
-
-/* Define to 1 if you have the <sys/stat.h> header file. */
-#define HAVE_SYS_STAT_H 1
-
-/* Define to 1 if you have the <sys/types.h> header file. */
-#define HAVE_SYS_TYPES_H 1
-
-/* Define to 1 if you have the <unistd.h> header file. */
-#define HAVE_UNISTD_H 1
-
-/* Name of package */
-#define PACKAGE "libev"
-
-/* Define to the address where bug reports for this package should be sent. */
-#define PACKAGE_BUGREPORT ""
-
-/* Define to the full name of this package. */
-#define PACKAGE_NAME ""
-
-/* Define to the full name and version of this package. */
-#define PACKAGE_STRING ""
-
-/* Define to the one symbol short name of this package. */
-#define PACKAGE_TARNAME ""
-
-/* Define to the version of this package. */
-#define PACKAGE_VERSION ""
-
-/* Define to 1 if you have the ANSI C header files. */
-#define STDC_HEADERS 1
-
-/* Version number of package */
-#define VERSION "3.9"
diff --git a/deps/uv/src/unix/ev/config_freebsd.h b/deps/uv/src/unix/ev/config_freebsd.h
deleted file mode 100644
index ebebd4156d..0000000000
--- a/deps/uv/src/unix/ev/config_freebsd.h
+++ /dev/null
@@ -1,120 +0,0 @@
-/* config.h.  Generated from config.h.in by configure.  */
-/* config.h.in.  Generated from configure.ac by autoheader.  */
-
-/* Define to 1 if you have the `clock_gettime' function. */
-/* #undef HAVE_CLOCK_GETTIME */
-
-/* "use syscall interface for clock_gettime" */
-/* #undef HAVE_CLOCK_SYSCALL */
-
-/* Define to 1 if you have the <dlfcn.h> header file. */
-#define HAVE_DLFCN_H 1
-
-/* Define to 1 if you have the `epoll_ctl' function. */
-/* #undef HAVE_EPOLL_CTL */
-
-/* Define to 1 if you have the `eventfd' function. */
-/* #undef HAVE_EVENTFD */
-
-/* Define to 1 if you have the `inotify_init' function. */
-/* #undef HAVE_INOTIFY_INIT */
-
-/* Define to 1 if you have the <inttypes.h> header file. */
-#define HAVE_INTTYPES_H 1
-
-/* Define to 1 if you have the `kqueue' function. */
-#define HAVE_KQUEUE 1
-
-/* Define to 1 if you have the `m' library (-lm). */
-#define HAVE_LIBM 1
-
-/* Define to 1 if you have the `rt' library (-lrt). */
-/* #undef HAVE_LIBRT */
-
-/* Define to 1 if you have the <memory.h> header file. */
-#define HAVE_MEMORY_H 1
-
-/* Define to 1 if you have the `nanosleep' function. */
-/* #undef HAVE_NANOSLEEP */
-
-/* Define to 1 if you have the `poll' function. */
-#define HAVE_POLL 1
-
-/* Define to 1 if you have the <poll.h> header file. */
-#define HAVE_POLL_H 1
-
-/* Define to 1 if you have the `port_create' function. */
-/* #undef HAVE_PORT_CREATE */
-
-/* Define to 1 if you have the <port.h> header file. */
-/* #undef HAVE_PORT_H */
-
-/* Define to 1 if you have the `select' function. */
-#define HAVE_SELECT 1
-
-/* Define to 1 if you have the <stdint.h> header file. */
-#define HAVE_STDINT_H 1
-
-/* Define to 1 if you have the <stdlib.h> header file. */
-#define HAVE_STDLIB_H 1
-
-/* Define to 1 if you have the <strings.h> header file. */
-#define HAVE_STRINGS_H 1
-
-/* Define to 1 if you have the <string.h> header file. */
-#define HAVE_STRING_H 1
-
-/* Define to 1 if you have the <sys/epoll.h> header file. */
-/* #undef HAVE_SYS_EPOLL_H */
-
-/* Define to 1 if you have the <sys/eventfd.h> header file. */
-/* #undef HAVE_SYS_EVENTFD_H */
-
-/* Define to 1 if you have the <sys/event.h> header file. */
-#define HAVE_SYS_EVENT_H 1
-
-/* Define to 1 if you have the <sys/inotify.h> header file. */
-/* #undef HAVE_SYS_INOTIFY_H */
-
-/* Define to 1 if you have the <sys/queue.h> header file. */
-#define HAVE_SYS_QUEUE_H 1
-
-/* Define to 1 if you have the <sys/select.h> header file. */
-#define HAVE_SYS_SELECT_H 1
-
-/* Define to 1 if you have the <sys/stat.h> header file. */
-#define HAVE_SYS_STAT_H 1
-
-/* Define to 1 if you have the <sys/types.h> header file. */
-#define HAVE_SYS_TYPES_H 1
-
-/* Define to 1 if you have the <unistd.h> header file. */
-#define HAVE_UNISTD_H 1
-
-/* Define to the sub-directory in which libtool stores uninstalled libraries.
-   */
-#define LT_OBJDIR ".libs/"
-
-/* Name of package */
-#define PACKAGE "libev"
-
-/* Define to the address where bug reports for this package should be sent. */
-#define PACKAGE_BUGREPORT ""
-
-/* Define to the full name of this package. */
-#define PACKAGE_NAME ""
-
-/* Define to the full name and version of this package. */
-#define PACKAGE_STRING ""
-
-/* Define to the one symbol short name of this package. */
-#define PACKAGE_TARNAME ""
-
-/* Define to the version of this package. */
-#define PACKAGE_VERSION ""
-
-/* Define to 1 if you have the ANSI C header files. */
-#define STDC_HEADERS 1
-
-/* Version number of package */
-#define VERSION "3.9"
diff --git a/deps/uv/src/unix/ev/config_linux.h b/deps/uv/src/unix/ev/config_linux.h
deleted file mode 100644
index a13b179f28..0000000000
--- a/deps/uv/src/unix/ev/config_linux.h
+++ /dev/null
@@ -1,141 +0,0 @@
-/* config.h.  Generated from config.h.in by configure.  */
-/* config.h.in.  Generated from configure.ac by autoheader.  */
-
-#include <linux/version.h>
-#include <features.h>
-
-/* Define to 1 if you have the `clock_gettime' function. */
-/* #undef HAVE_CLOCK_GETTIME */
-
-/* "use syscall interface for clock_gettime" */
-#define HAVE_CLOCK_SYSCALL 1
-
-/* Define to 1 if you have the <dlfcn.h> header file. */
-#define HAVE_DLFCN_H 1
-
-/* epoll_ctl(2) is available if kernel >= 2.6.9 and glibc >= 2.4 */
-#if LINUX_VERSION_CODE >= 0x020609 && __GLIBC_PREREQ(2, 4)
-#define HAVE_EPOLL_CTL 1
-#else
-#define HAVE_EPOLL_CTL 0
-#endif
-
-/* eventfd(2) is available if kernel >= 2.6.22 and glibc >= 2.8 */
-#if LINUX_VERSION_CODE >= 0x020616 && __GLIBC_PREREQ(2, 8)
-#define HAVE_EVENTFD 1
-#else
-#define HAVE_EVENTFD 0
-#endif
-
-/* inotify_init(2) is available if kernel >= 2.6.13 and glibc >= 2.4 */
-#if LINUX_VERSION_CODE >= 0x02060d && __GLIBC_PREREQ(2, 4)
-#define HAVE_INOTIFY_INIT 1
-#else
-#define HAVE_INOTIFY_INIT 0
-#endif
-
-/* Define to 1 if you have the <inttypes.h> header file. */
-#define HAVE_INTTYPES_H 1
-
-/* Define to 1 if you have the `kqueue' function. */
-/* #undef HAVE_KQUEUE */
-
-/* Define to 1 if you have the `m' library (-lm). */
-#define HAVE_LIBM 1
-
-/* Define to 1 if you have the `rt' library (-lrt). */
-/* #undef HAVE_LIBRT */
-
-/* Define to 1 if you have the <memory.h> header file. */
-#define HAVE_MEMORY_H 1
-
-/* Define to 1 if you have the `nanosleep' function. */
-/* #undef HAVE_NANOSLEEP */
-
-/* Define to 1 if you have the `poll' function. */
-#define HAVE_POLL 1
-
-/* Define to 1 if you have the <poll.h> header file. */
-#define HAVE_POLL_H 1
-
-/* Define to 1 if you have the `port_create' function. */
-/* #undef HAVE_PORT_CREATE */
-
-/* Define to 1 if you have the <port.h> header file. */
-/* #undef HAVE_PORT_H */
-
-/* Define to 1 if you have the `select' function. */
-#define HAVE_SELECT 1
-
-/* signalfd(2) is available if kernel >= 2.6.22 and glibc >= 2.8 */
-#if LINUX_VERSION_CODE >= 0x020616 && __GLIBC_PREREQ(2, 8)
-#define HAVE_SIGNALFD 1
-#else
-#define HAVE_SIGNALFD 0
-#endif
-
-/* Define to 1 if you have the <stdint.h> header file. */
-#define HAVE_STDINT_H 1
-
-/* Define to 1 if you have the <stdlib.h> header file. */
-#define HAVE_STDLIB_H 1
-
-/* Define to 1 if you have the <strings.h> header file. */
-#define HAVE_STRINGS_H 1
-
-/* Define to 1 if you have the <string.h> header file. */
-#define HAVE_STRING_H 1
-
-/* Define to 1 if you have the <sys/epoll.h> header file. */
-#define HAVE_SYS_EPOLL_H 1
-
-/* Define to 1 if you have the <sys/eventfd.h> header file. */
-#define HAVE_SYS_EVENTFD_H 1
-
-/* Define to 1 if you have the <sys/event.h> header file. */
-/* #undef HAVE_SYS_EVENT_H */
-
-/* Define to 1 if you have the <sys/inotify.h> header file. */
-#define HAVE_SYS_INOTIFY_H 1
-
-/* Define to 1 if you have the <sys/queue.h> header file. */
-#define HAVE_SYS_QUEUE_H 1
-
-/* Define to 1 if you have the <sys/select.h> header file. */
-#define HAVE_SYS_SELECT_H 1
-
-/* Define to 1 if you have the <sys/signalfd.h> header file. */
-#define HAVE_SYS_SIGNALFD_H 1
-
-/* Define to 1 if you have the <sys/stat.h> header file. */
-#define HAVE_SYS_STAT_H 1
-
-/* Define to 1 if you have the <sys/types.h> header file. */
-#define HAVE_SYS_TYPES_H 1
-
-/* Define to 1 if you have the <unistd.h> header file. */
-#define HAVE_UNISTD_H 1
-
-/* Name of package */
-#define PACKAGE "libev"
-
-/* Define to the address where bug reports for this package should be sent. */
-#define PACKAGE_BUGREPORT ""
-
-/* Define to the full name of this package. */
-#define PACKAGE_NAME ""
-
-/* Define to the full name and version of this package. */
-#define PACKAGE_STRING ""
-
-/* Define to the one symbol short name of this package. */
-#define PACKAGE_TARNAME ""
-
-/* Define to the version of this package. */
-#define PACKAGE_VERSION ""
-
-/* Define to 1 if you have the ANSI C header files. */
-#define STDC_HEADERS 1
-
-/* Version number of package */
-#define VERSION "3.9"
diff --git a/deps/uv/src/unix/ev/config_netbsd.h b/deps/uv/src/unix/ev/config_netbsd.h
deleted file mode 100644
index ebebd4156d..0000000000
--- a/deps/uv/src/unix/ev/config_netbsd.h
+++ /dev/null
@@ -1,120 +0,0 @@
-/* config.h.  Generated from config.h.in by configure.  */
-/* config.h.in.  Generated from configure.ac by autoheader.  */
-
-/* Define to 1 if you have the `clock_gettime' function. */
-/* #undef HAVE_CLOCK_GETTIME */
-
-/* "use syscall interface for clock_gettime" */
-/* #undef HAVE_CLOCK_SYSCALL */
-
-/* Define to 1 if you have the <dlfcn.h> header file. */
-#define HAVE_DLFCN_H 1
-
-/* Define to 1 if you have the `epoll_ctl' function. */
-/* #undef HAVE_EPOLL_CTL */
-
-/* Define to 1 if you have the `eventfd' function. */
-/* #undef HAVE_EVENTFD */
-
-/* Define to 1 if you have the `inotify_init' function. */
-/* #undef HAVE_INOTIFY_INIT */
-
-/* Define to 1 if you have the <inttypes.h> header file. */
-#define HAVE_INTTYPES_H 1
-
-/* Define to 1 if you have the `kqueue' function. */
-#define HAVE_KQUEUE 1
-
-/* Define to 1 if you have the `m' library (-lm). */
-#define HAVE_LIBM 1
-
-/* Define to 1 if you have the `rt' library (-lrt). */
-/* #undef HAVE_LIBRT */
-
-/* Define to 1 if you have the <memory.h> header file. */
-#define HAVE_MEMORY_H 1
-
-/* Define to 1 if you have the `nanosleep' function. */
-/* #undef HAVE_NANOSLEEP */
-
-/* Define to 1 if you have the `poll' function. */
-#define HAVE_POLL 1
-
-/* Define to 1 if you have the <poll.h> header file. */
-#define HAVE_POLL_H 1
-
-/* Define to 1 if you have the `port_create' function. */
-/* #undef HAVE_PORT_CREATE */
-
-/* Define to 1 if you have the <port.h> header file. */
-/* #undef HAVE_PORT_H */
-
-/* Define to 1 if you have the `select' function. */
-#define HAVE_SELECT 1
-
-/* Define to 1 if you have the <stdint.h> header file. */
-#define HAVE_STDINT_H 1
-
-/* Define to 1 if you have the <stdlib.h> header file. */
-#define HAVE_STDLIB_H 1
-
-/* Define to 1 if you have the <strings.h> header file. */
-#define HAVE_STRINGS_H 1
-
-/* Define to 1 if you have the <string.h> header file. */
-#define HAVE_STRING_H 1
-
-/* Define to 1 if you have the <sys/epoll.h> header file. */
-/* #undef HAVE_SYS_EPOLL_H */
-
-/* Define to 1 if you have the <sys/eventfd.h> header file. */
-/* #undef HAVE_SYS_EVENTFD_H */
-
-/* Define to 1 if you have the <sys/event.h> header file. */
-#define HAVE_SYS_EVENT_H 1
-
-/* Define to 1 if you have the <sys/inotify.h> header file. */
-/* #undef HAVE_SYS_INOTIFY_H */
-
-/* Define to 1 if you have the <sys/queue.h> header file. */
-#define HAVE_SYS_QUEUE_H 1
-
-/* Define to 1 if you have the <sys/select.h> header file. */
-#define HAVE_SYS_SELECT_H 1
-
-/* Define to 1 if you have the <sys/stat.h> header file. */
-#define HAVE_SYS_STAT_H 1
-
-/* Define to 1 if you have the <sys/types.h> header file. */
-#define HAVE_SYS_TYPES_H 1
-
-/* Define to 1 if you have the <unistd.h> header file. */
-#define HAVE_UNISTD_H 1
-
-/* Define to the sub-directory in which libtool stores uninstalled libraries.
-   */
-#define LT_OBJDIR ".libs/"
-
-/* Name of package */
-#define PACKAGE "libev"
-
-/* Define to the address where bug reports for this package should be sent. */
-#define PACKAGE_BUGREPORT ""
-
-/* Define to the full name of this package. */
-#define PACKAGE_NAME ""
-
-/* Define to the full name and version of this package. */
-#define PACKAGE_STRING ""
-
-/* Define to the one symbol short name of this package. */
-#define PACKAGE_TARNAME ""
-
-/* Define to the version of this package. */
-#define PACKAGE_VERSION ""
-
-/* Define to 1 if you have the ANSI C header files. */
-#define STDC_HEADERS 1
-
-/* Version number of package */
-#define VERSION "3.9"
diff --git a/deps/uv/src/unix/ev/config_openbsd.h b/deps/uv/src/unix/ev/config_openbsd.h
deleted file mode 100644
index 8bc9b89041..0000000000
--- a/deps/uv/src/unix/ev/config_openbsd.h
+++ /dev/null
@@ -1,126 +0,0 @@
-/* config.h.  Generated from config.h.in by configure.  */
-/* config.h.in.  Generated from configure.ac by autoheader.  */
-
-/* Define to 1 if you have the `clock_gettime' function. */
-#define HAVE_CLOCK_GETTIME 1
-
-/* "use syscall interface for clock_gettime" */
-/* #undef HAVE_CLOCK_SYSCALL */
-
-/* Define to 1 if you have the <dlfcn.h> header file. */
-#define HAVE_DLFCN_H 1
-
-/* Define to 1 if you have the `epoll_ctl' function. */
-/* #undef HAVE_EPOLL_CTL */
-
-/* Define to 1 if you have the `eventfd' function. */
-/* #undef HAVE_EVENTFD */
-
-/* Define to 1 if you have the `inotify_init' function. */
-/* #undef HAVE_INOTIFY_INIT */
-
-/* Define to 1 if you have the <inttypes.h> header file. */
-#define HAVE_INTTYPES_H 1
-
-/* Define to 1 if you have the `kqueue' function. */
-#define HAVE_KQUEUE 1
-
-/* Define to 1 if you have the `m' library (-lm). */
-#define HAVE_LIBM 1
-
-/* Define to 1 if you have the `rt' library (-lrt). */
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-/* Define to 1 if you have the <memory.h> header file. */
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-
-/* Define to 1 if you have the `nanosleep' function. */
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-/* Define to 1 if you have the `poll' function. */
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-/* Define to 1 if you have the <poll.h> header file. */
-#define HAVE_POLL_H 1
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-/* Define to 1 if you have the `port_create' function. */
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-/* Define to 1 if you have the <port.h> header file. */
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-/* Define to 1 if you have the `select' function. */
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-/* Define to 1 if you have the <sys/eventfd.h> header file. */
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-/* Define to 1 if you have the <sys/event.h> header file. */
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-/* Define to 1 if you have the <sys/inotify.h> header file. */
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-/* Define to 1 if you have the <sys/select.h> header file. */
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-/* Define to 1 if you have the <sys/signalfd.h> header file. */
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-/* Name of package */
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-/* Define to the address where bug reports for this package should be sent. */
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-/* Define to the full name of this package. */
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-/* Define to 1 if you have the ANSI C header files. */
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-/* Version number of package */
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diff --git a/deps/uv/src/unix/ev/config_sunos.h b/deps/uv/src/unix/ev/config_sunos.h
deleted file mode 100644
index 9f8861d8a3..0000000000
--- a/deps/uv/src/unix/ev/config_sunos.h
+++ /dev/null
@@ -1,122 +0,0 @@
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-/* Define to 1 if you have the <port.h> header file. */
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-/* Define to the address where bug reports for this package should be sent. */
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-/* Define to the full name of this package. */
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-/* Define to the version of this package. */
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diff --git a/deps/uv/src/unix/ev/configure b/deps/uv/src/unix/ev/configure
deleted file mode 100755
index 98f102f1e4..0000000000
--- a/deps/uv/src/unix/ev/configure
+++ /dev/null
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-	    q
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-	  /^X\/\(\/\).*/{
-	    s//\1/
-	    q
-	  }
-	  s/.*/./; q'`
-
-# Avoid depending upon Character Ranges.
-as_cr_letters='abcdefghijklmnopqrstuvwxyz'
-as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
-as_cr_Letters=$as_cr_letters$as_cr_LETTERS
-as_cr_digits='0123456789'
-as_cr_alnum=$as_cr_Letters$as_cr_digits
-
-
-  as_lineno_1=$LINENO as_lineno_1a=$LINENO
-  as_lineno_2=$LINENO as_lineno_2a=$LINENO
-  eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
-  test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
-  # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
-  sed -n '
-    p
-    /[$]LINENO/=
-  ' <$as_myself |
-    sed '
-      s/[$]LINENO.*/&-/
-      t lineno
-      b
-      :lineno
-      N
-      :loop
-      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
-      t loop
-      s/-\n.*//
-    ' >$as_me.lineno &&
-  chmod +x "$as_me.lineno" ||
-    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
-
-  # Don't try to exec as it changes $[0], causing all sort of problems
-  # (the dirname of $[0] is not the place where we might find the
-  # original and so on.  Autoconf is especially sensitive to this).
-  . "./$as_me.lineno"
-  # Exit status is that of the last command.
-  exit
-}
-
-ECHO_C= ECHO_N= ECHO_T=
-case `echo -n x` in #(((((
--n*)
-  case `echo 'xy\c'` in
-  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
-  xy)  ECHO_C='\c';;
-  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
-       ECHO_T='	';;
-  esac;;
-*)
-  ECHO_N='-n';;
-esac
-
-rm -f conf$$ conf$$.exe conf$$.file
-if test -d conf$$.dir; then
-  rm -f conf$$.dir/conf$$.file
-else
-  rm -f conf$$.dir
-  mkdir conf$$.dir 2>/dev/null
-fi
-if (echo >conf$$.file) 2>/dev/null; then
-  if ln -s conf$$.file conf$$ 2>/dev/null; then
-    as_ln_s='ln -s'
-    # ... but there are two gotchas:
-    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
-    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
-    # In both cases, we have to default to `cp -p'.
-    ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
-      as_ln_s='cp -p'
-  elif ln conf$$.file conf$$ 2>/dev/null; then
-    as_ln_s=ln
-  else
-    as_ln_s='cp -p'
-  fi
-else
-  as_ln_s='cp -p'
-fi
-rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
-rmdir conf$$.dir 2>/dev/null
-
-if mkdir -p . 2>/dev/null; then
-  as_mkdir_p='mkdir -p "$as_dir"'
-else
-  test -d ./-p && rmdir ./-p
-  as_mkdir_p=false
-fi
-
-if test -x / >/dev/null 2>&1; then
-  as_test_x='test -x'
-else
-  if ls -dL / >/dev/null 2>&1; then
-    as_ls_L_option=L
-  else
-    as_ls_L_option=
-  fi
-  as_test_x='
-    eval sh -c '\''
-      if test -d "$1"; then
-	test -d "$1/.";
-      else
-	case $1 in #(
-	-*)set "./$1";;
-	esac;
-	case `ls -ld'$as_ls_L_option' "$1" 2>/dev/null` in #((
-	???[sx]*):;;*)false;;esac;fi
-    '\'' sh
-  '
-fi
-as_executable_p=$as_test_x
-
-# Sed expression to map a string onto a valid CPP name.
-as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
-
-# Sed expression to map a string onto a valid variable name.
-as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
-
-
-
-# Check that we are running under the correct shell.
-SHELL=${CONFIG_SHELL-/bin/sh}
-
-case X$lt_ECHO in
-X*--fallback-echo)
-  # Remove one level of quotation (which was required for Make).
-  ECHO=`echo "$lt_ECHO" | sed 's,\\\\\$\\$0,'$0','`
-  ;;
-esac
-
-ECHO=${lt_ECHO-echo}
-if test "X$1" = X--no-reexec; then
-  # Discard the --no-reexec flag, and continue.
-  shift
-elif test "X$1" = X--fallback-echo; then
-  # Avoid inline document here, it may be left over
-  :
-elif test "X`{ $ECHO '\t'; } 2>/dev/null`" = 'X\t' ; then
-  # Yippee, $ECHO works!
-  :
-else
-  # Restart under the correct shell.
-  exec $SHELL "$0" --no-reexec ${1+"$@"}
-fi
-
-if test "X$1" = X--fallback-echo; then
-  # used as fallback echo
-  shift
-  cat <<_LT_EOF
-$*
-_LT_EOF
-  exit 0
-fi
-
-# The HP-UX ksh and POSIX shell print the target directory to stdout
-# if CDPATH is set.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
-
-if test -z "$lt_ECHO"; then
-  if test "X${echo_test_string+set}" != Xset; then
-    # find a string as large as possible, as long as the shell can cope with it
-    for cmd in 'sed 50q "$0"' 'sed 20q "$0"' 'sed 10q "$0"' 'sed 2q "$0"' 'echo test'; do
-      # expected sizes: less than 2Kb, 1Kb, 512 bytes, 16 bytes, ...
-      if { echo_test_string=`eval $cmd`; } 2>/dev/null &&
-	 { test "X$echo_test_string" = "X$echo_test_string"; } 2>/dev/null
-      then
-        break
-      fi
-    done
-  fi
-
-  if test "X`{ $ECHO '\t'; } 2>/dev/null`" = 'X\t' &&
-     echo_testing_string=`{ $ECHO "$echo_test_string"; } 2>/dev/null` &&
-     test "X$echo_testing_string" = "X$echo_test_string"; then
-    :
-  else
-    # The Solaris, AIX, and Digital Unix default echo programs unquote
-    # backslashes.  This makes it impossible to quote backslashes using
-    #   echo "$something" | sed 's/\\/\\\\/g'
-    #
-    # So, first we look for a working echo in the user's PATH.
-
-    lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
-    for dir in $PATH /usr/ucb; do
-      IFS="$lt_save_ifs"
-      if (test -f $dir/echo || test -f $dir/echo$ac_exeext) &&
-         test "X`($dir/echo '\t') 2>/dev/null`" = 'X\t' &&
-         echo_testing_string=`($dir/echo "$echo_test_string") 2>/dev/null` &&
-         test "X$echo_testing_string" = "X$echo_test_string"; then
-        ECHO="$dir/echo"
-        break
-      fi
-    done
-    IFS="$lt_save_ifs"
-
-    if test "X$ECHO" = Xecho; then
-      # We didn't find a better echo, so look for alternatives.
-      if test "X`{ print -r '\t'; } 2>/dev/null`" = 'X\t' &&
-         echo_testing_string=`{ print -r "$echo_test_string"; } 2>/dev/null` &&
-         test "X$echo_testing_string" = "X$echo_test_string"; then
-        # This shell has a builtin print -r that does the trick.
-        ECHO='print -r'
-      elif { test -f /bin/ksh || test -f /bin/ksh$ac_exeext; } &&
-	   test "X$CONFIG_SHELL" != X/bin/ksh; then
-        # If we have ksh, try running configure again with it.
-        ORIGINAL_CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
-        export ORIGINAL_CONFIG_SHELL
-        CONFIG_SHELL=/bin/ksh
-        export CONFIG_SHELL
-        exec $CONFIG_SHELL "$0" --no-reexec ${1+"$@"}
-      else
-        # Try using printf.
-        ECHO='printf %s\n'
-        if test "X`{ $ECHO '\t'; } 2>/dev/null`" = 'X\t' &&
-	   echo_testing_string=`{ $ECHO "$echo_test_string"; } 2>/dev/null` &&
-	   test "X$echo_testing_string" = "X$echo_test_string"; then
-	  # Cool, printf works
-	  :
-        elif echo_testing_string=`($ORIGINAL_CONFIG_SHELL "$0" --fallback-echo '\t') 2>/dev/null` &&
-	     test "X$echo_testing_string" = 'X\t' &&
-	     echo_testing_string=`($ORIGINAL_CONFIG_SHELL "$0" --fallback-echo "$echo_test_string") 2>/dev/null` &&
-	     test "X$echo_testing_string" = "X$echo_test_string"; then
-	  CONFIG_SHELL=$ORIGINAL_CONFIG_SHELL
-	  export CONFIG_SHELL
-	  SHELL="$CONFIG_SHELL"
-	  export SHELL
-	  ECHO="$CONFIG_SHELL $0 --fallback-echo"
-        elif echo_testing_string=`($CONFIG_SHELL "$0" --fallback-echo '\t') 2>/dev/null` &&
-	     test "X$echo_testing_string" = 'X\t' &&
-	     echo_testing_string=`($CONFIG_SHELL "$0" --fallback-echo "$echo_test_string") 2>/dev/null` &&
-	     test "X$echo_testing_string" = "X$echo_test_string"; then
-	  ECHO="$CONFIG_SHELL $0 --fallback-echo"
-        else
-	  # maybe with a smaller string...
-	  prev=:
-
-	  for cmd in 'echo test' 'sed 2q "$0"' 'sed 10q "$0"' 'sed 20q "$0"' 'sed 50q "$0"'; do
-	    if { test "X$echo_test_string" = "X`eval $cmd`"; } 2>/dev/null
-	    then
-	      break
-	    fi
-	    prev="$cmd"
-	  done
-
-	  if test "$prev" != 'sed 50q "$0"'; then
-	    echo_test_string=`eval $prev`
-	    export echo_test_string
-	    exec ${ORIGINAL_CONFIG_SHELL-${CONFIG_SHELL-/bin/sh}} "$0" ${1+"$@"}
-	  else
-	    # Oops.  We lost completely, so just stick with echo.
-	    ECHO=echo
-	  fi
-        fi
-      fi
-    fi
-  fi
-fi
-
-# Copy echo and quote the copy suitably for passing to libtool from
-# the Makefile, instead of quoting the original, which is used later.
-lt_ECHO=$ECHO
-if test "X$lt_ECHO" = "X$CONFIG_SHELL $0 --fallback-echo"; then
-   lt_ECHO="$CONFIG_SHELL \\\$\$0 --fallback-echo"
-fi
-
-
-
-
-test -n "$DJDIR" || exec 7<&0 </dev/null
-exec 6>&1
-
-# Name of the host.
-# hostname on some systems (SVR3.2, old GNU/Linux) returns a bogus exit status,
-# so uname gets run too.
-ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`
-
-#
-# Initializations.
-#
-ac_default_prefix=/usr/local
-ac_clean_files=
-ac_config_libobj_dir=.
-LIBOBJS=
-cross_compiling=no
-subdirs=
-MFLAGS=
-MAKEFLAGS=
-
-# Identity of this package.
-PACKAGE_NAME=
-PACKAGE_TARNAME=
-PACKAGE_VERSION=
-PACKAGE_STRING=
-PACKAGE_BUGREPORT=
-PACKAGE_URL=
-
-ac_unique_file="ev_epoll.c"
-# Factoring default headers for most tests.
-ac_includes_default="\
-#include <stdio.h>
-#ifdef HAVE_SYS_TYPES_H
-# include <sys/types.h>
-#endif
-#ifdef HAVE_SYS_STAT_H
-# include <sys/stat.h>
-#endif
-#ifdef STDC_HEADERS
-# include <stdlib.h>
-# include <stddef.h>
-#else
-# ifdef HAVE_STDLIB_H
-#  include <stdlib.h>
-# endif
-#endif
-#ifdef HAVE_STRING_H
-# if !defined STDC_HEADERS && defined HAVE_MEMORY_H
-#  include <memory.h>
-# endif
-# include <string.h>
-#endif
-#ifdef HAVE_STRINGS_H
-# include <strings.h>
-#endif
-#ifdef HAVE_INTTYPES_H
-# include <inttypes.h>
-#endif
-#ifdef HAVE_STDINT_H
-# include <stdint.h>
-#endif
-#ifdef HAVE_UNISTD_H
-# include <unistd.h>
-#endif"
-
-ac_subst_vars='am__EXEEXT_FALSE
-am__EXEEXT_TRUE
-LTLIBOBJS
-LIBOBJS
-CPP
-OTOOL64
-OTOOL
-LIPO
-NMEDIT
-DSYMUTIL
-lt_ECHO
-RANLIB
-AR
-OBJDUMP
-LN_S
-NM
-ac_ct_DUMPBIN
-DUMPBIN
-LD
-FGREP
-EGREP
-GREP
-SED
-am__fastdepCC_FALSE
-am__fastdepCC_TRUE
-CCDEPMODE
-AMDEPBACKSLASH
-AMDEP_FALSE
-AMDEP_TRUE
-am__quote
-am__include
-DEPDIR
-OBJEXT
-EXEEXT
-ac_ct_CC
-CPPFLAGS
-LDFLAGS
-CFLAGS
-CC
-host_os
-host_vendor
-host_cpu
-host
-build_os
-build_vendor
-build_cpu
-build
-LIBTOOL
-MAINT
-MAINTAINER_MODE_FALSE
-MAINTAINER_MODE_TRUE
-am__untar
-am__tar
-AMTAR
-am__leading_dot
-SET_MAKE
-AWK
-mkdir_p
-MKDIR_P
-INSTALL_STRIP_PROGRAM
-STRIP
-install_sh
-MAKEINFO
-AUTOHEADER
-AUTOMAKE
-AUTOCONF
-ACLOCAL
-VERSION
-PACKAGE
-CYGPATH_W
-am__isrc
-INSTALL_DATA
-INSTALL_SCRIPT
-INSTALL_PROGRAM
-target_alias
-host_alias
-build_alias
-LIBS
-ECHO_T
-ECHO_N
-ECHO_C
-DEFS
-mandir
-localedir
-libdir
-psdir
-pdfdir
-dvidir
-htmldir
-infodir
-docdir
-oldincludedir
-includedir
-localstatedir
-sharedstatedir
-sysconfdir
-datadir
-datarootdir
-libexecdir
-sbindir
-bindir
-program_transform_name
-prefix
-exec_prefix
-PACKAGE_URL
-PACKAGE_BUGREPORT
-PACKAGE_STRING
-PACKAGE_VERSION
-PACKAGE_TARNAME
-PACKAGE_NAME
-PATH_SEPARATOR
-SHELL'
-ac_subst_files=''
-ac_user_opts='
-enable_option_checking
-enable_maintainer_mode
-enable_shared
-enable_static
-with_pic
-enable_fast_install
-enable_dependency_tracking
-with_gnu_ld
-enable_libtool_lock
-'
-      ac_precious_vars='build_alias
-host_alias
-target_alias
-CC
-CFLAGS
-LDFLAGS
-LIBS
-CPPFLAGS
-CPP'
-
-
-# Initialize some variables set by options.
-ac_init_help=
-ac_init_version=false
-ac_unrecognized_opts=
-ac_unrecognized_sep=
-# The variables have the same names as the options, with
-# dashes changed to underlines.
-cache_file=/dev/null
-exec_prefix=NONE
-no_create=
-no_recursion=
-prefix=NONE
-program_prefix=NONE
-program_suffix=NONE
-program_transform_name=s,x,x,
-silent=
-site=
-srcdir=
-verbose=
-x_includes=NONE
-x_libraries=NONE
-
-# Installation directory options.
-# These are left unexpanded so users can "make install exec_prefix=/foo"
-# and all the variables that are supposed to be based on exec_prefix
-# by default will actually change.
-# Use braces instead of parens because sh, perl, etc. also accept them.
-# (The list follows the same order as the GNU Coding Standards.)
-bindir='${exec_prefix}/bin'
-sbindir='${exec_prefix}/sbin'
-libexecdir='${exec_prefix}/libexec'
-datarootdir='${prefix}/share'
-datadir='${datarootdir}'
-sysconfdir='${prefix}/etc'
-sharedstatedir='${prefix}/com'
-localstatedir='${prefix}/var'
-includedir='${prefix}/include'
-oldincludedir='/usr/include'
-docdir='${datarootdir}/doc/${PACKAGE}'
-infodir='${datarootdir}/info'
-htmldir='${docdir}'
-dvidir='${docdir}'
-pdfdir='${docdir}'
-psdir='${docdir}'
-libdir='${exec_prefix}/lib'
-localedir='${datarootdir}/locale'
-mandir='${datarootdir}/man'
-
-ac_prev=
-ac_dashdash=
-for ac_option
-do
-  # If the previous option needs an argument, assign it.
-  if test -n "$ac_prev"; then
-    eval $ac_prev=\$ac_option
-    ac_prev=
-    continue
-  fi
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-  case $ac_option in
-  *=?*) ac_optarg=`expr "X$ac_option" : '[^=]*=\(.*\)'` ;;
-  *=)   ac_optarg= ;;
-  *)    ac_optarg=yes ;;
-  esac
-
-  # Accept the important Cygnus configure options, so we can diagnose typos.
-
-  case $ac_dashdash$ac_option in
-  --)
-    ac_dashdash=yes ;;
-
-  -bindir | --bindir | --bindi | --bind | --bin | --bi)
-    ac_prev=bindir ;;
-  -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
-    bindir=$ac_optarg ;;
-
-  -build | --build | --buil | --bui | --bu)
-    ac_prev=build_alias ;;
-  -build=* | --build=* | --buil=* | --bui=* | --bu=*)
-    build_alias=$ac_optarg ;;
-
-  -cache-file | --cache-file | --cache-fil | --cache-fi \
-  | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
-    ac_prev=cache_file ;;
-  -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
-  | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
-    cache_file=$ac_optarg ;;
-
-  --config-cache | -C)
-    cache_file=config.cache ;;
-
-  -datadir | --datadir | --datadi | --datad)
-    ac_prev=datadir ;;
-  -datadir=* | --datadir=* | --datadi=* | --datad=*)
-    datadir=$ac_optarg ;;
-
-  -datarootdir | --datarootdir | --datarootdi | --datarootd | --dataroot \
-  | --dataroo | --dataro | --datar)
-    ac_prev=datarootdir ;;
-  -datarootdir=* | --datarootdir=* | --datarootdi=* | --datarootd=* \
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-    datarootdir=$ac_optarg ;;
-
-  -disable-* | --disable-*)
-    ac_useropt=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
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-    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid feature name: $ac_useropt"
-    ac_useropt_orig=$ac_useropt
-    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
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-      *"
-"enable_$ac_useropt"
-"*) ;;
-      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--disable-$ac_useropt_orig"
-	 ac_unrecognized_sep=', ';;
-    esac
-    eval enable_$ac_useropt=no ;;
-
-  -docdir | --docdir | --docdi | --doc | --do)
-    ac_prev=docdir ;;
-  -docdir=* | --docdir=* | --docdi=* | --doc=* | --do=*)
-    docdir=$ac_optarg ;;
-
-  -dvidir | --dvidir | --dvidi | --dvid | --dvi | --dv)
-    ac_prev=dvidir ;;
-  -dvidir=* | --dvidir=* | --dvidi=* | --dvid=* | --dvi=* | --dv=*)
-    dvidir=$ac_optarg ;;
-
-  -enable-* | --enable-*)
-    ac_useropt=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
-    # Reject names that are not valid shell variable names.
-    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid feature name: $ac_useropt"
-    ac_useropt_orig=$ac_useropt
-    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
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-"enable_$ac_useropt"
-"*) ;;
-      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--enable-$ac_useropt_orig"
-	 ac_unrecognized_sep=', ';;
-    esac
-    eval enable_$ac_useropt=\$ac_optarg ;;
-
-  -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
-  | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
-  | --exec | --exe | --ex)
-    ac_prev=exec_prefix ;;
-  -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
-  | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
-  | --exec=* | --exe=* | --ex=*)
-    exec_prefix=$ac_optarg ;;
-
-  -gas | --gas | --ga | --g)
-    # Obsolete; use --with-gas.
-    with_gas=yes ;;
-
-  -help | --help | --hel | --he | -h)
-    ac_init_help=long ;;
-  -help=r* | --help=r* | --hel=r* | --he=r* | -hr*)
-    ac_init_help=recursive ;;
-  -help=s* | --help=s* | --hel=s* | --he=s* | -hs*)
-    ac_init_help=short ;;
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-  -host | --host | --hos | --ho)
-    ac_prev=host_alias ;;
-  -host=* | --host=* | --hos=* | --ho=*)
-    host_alias=$ac_optarg ;;
-
-  -htmldir | --htmldir | --htmldi | --htmld | --html | --htm | --ht)
-    ac_prev=htmldir ;;
-  -htmldir=* | --htmldir=* | --htmldi=* | --htmld=* | --html=* | --htm=* \
-  | --ht=*)
-    htmldir=$ac_optarg ;;
-
-  -includedir | --includedir | --includedi | --included | --include \
-  | --includ | --inclu | --incl | --inc)
-    ac_prev=includedir ;;
-  -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
-  | --includ=* | --inclu=* | --incl=* | --inc=*)
-    includedir=$ac_optarg ;;
-
-  -infodir | --infodir | --infodi | --infod | --info | --inf)
-    ac_prev=infodir ;;
-  -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
-    infodir=$ac_optarg ;;
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-	break
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-
-  cd ..
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-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_CC_dependencies_compiler_type" >&5
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-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a sed that does not truncate output" >&5
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-      ac_path_SED_max=$ac_count
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-  done
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-      $ac_path_SED_found && break 3
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-  done
-  done
-IFS=$as_save_IFS
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-  ac_cv_path_SED=$SED
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-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_SED" >&5
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-
-test -z "$SED" && SED=sed
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-
-
-
-
-
-
-
-
-
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
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-  if test -z "$GREP"; then
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-  # Check for GNU $ac_path_GREP
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-  ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
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-  do
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-    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
-    as_fn_arith $ac_count + 1 && ac_count=$as_val
-    if test $ac_count -gt ${ac_path_GREP_max-0}; then
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-      ac_cv_path_GREP="$ac_path_GREP"
-      ac_path_GREP_max=$ac_count
-    fi
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-  done
-  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
-esac
-
-      $ac_path_GREP_found && break 3
-    done
-  done
-  done
-IFS=$as_save_IFS
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-    as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
-  fi
-else
-  ac_cv_path_GREP=$GREP
-fi
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
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- GREP="$ac_cv_path_GREP"
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
-$as_echo_n "checking for egrep... " >&6; }
-if test "${ac_cv_path_EGREP+set}" = set; then :
-  $as_echo_n "(cached) " >&6
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-  if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
-   then ac_cv_path_EGREP="$GREP -E"
-   else
-     if test -z "$EGREP"; then
-  ac_path_EGREP_found=false
-  # Loop through the user's path and test for each of PROGNAME-LIST
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_prog in egrep; do
-    for ac_exec_ext in '' $ac_executable_extensions; do
-      ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
-      { test -f "$ac_path_EGREP" && $as_test_x "$ac_path_EGREP"; } || continue
-# Check for GNU ac_path_EGREP and select it if it is found.
-  # Check for GNU $ac_path_EGREP
-case `"$ac_path_EGREP" --version 2>&1` in
-*GNU*)
-  ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
-*)
-  ac_count=0
-  $as_echo_n 0123456789 >"conftest.in"
-  while :
-  do
-    cat "conftest.in" "conftest.in" >"conftest.tmp"
-    mv "conftest.tmp" "conftest.in"
-    cp "conftest.in" "conftest.nl"
-    $as_echo 'EGREP' >> "conftest.nl"
-    "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
-    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
-    as_fn_arith $ac_count + 1 && ac_count=$as_val
-    if test $ac_count -gt ${ac_path_EGREP_max-0}; then
-      # Best one so far, save it but keep looking for a better one
-      ac_cv_path_EGREP="$ac_path_EGREP"
-      ac_path_EGREP_max=$ac_count
-    fi
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-    test $ac_count -gt 10 && break
-  done
-  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
-esac
-
-      $ac_path_EGREP_found && break 3
-    done
-  done
-  done
-IFS=$as_save_IFS
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-else
-  ac_cv_path_EGREP=$EGREP
-fi
-
-   fi
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
-$as_echo "$ac_cv_path_EGREP" >&6; }
- EGREP="$ac_cv_path_EGREP"
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for fgrep" >&5
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-if test "${ac_cv_path_FGREP+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  if echo 'ab*c' | $GREP -F 'ab*c' >/dev/null 2>&1
-   then ac_cv_path_FGREP="$GREP -F"
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-     if test -z "$FGREP"; then
-  ac_path_FGREP_found=false
-  # Loop through the user's path and test for each of PROGNAME-LIST
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
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-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_prog in fgrep; do
-    for ac_exec_ext in '' $ac_executable_extensions; do
-      ac_path_FGREP="$as_dir/$ac_prog$ac_exec_ext"
-      { test -f "$ac_path_FGREP" && $as_test_x "$ac_path_FGREP"; } || continue
-# Check for GNU ac_path_FGREP and select it if it is found.
-  # Check for GNU $ac_path_FGREP
-case `"$ac_path_FGREP" --version 2>&1` in
-*GNU*)
-  ac_cv_path_FGREP="$ac_path_FGREP" ac_path_FGREP_found=:;;
-*)
-  ac_count=0
-  $as_echo_n 0123456789 >"conftest.in"
-  while :
-  do
-    cat "conftest.in" "conftest.in" >"conftest.tmp"
-    mv "conftest.tmp" "conftest.in"
-    cp "conftest.in" "conftest.nl"
-    $as_echo 'FGREP' >> "conftest.nl"
-    "$ac_path_FGREP" FGREP < "conftest.nl" >"conftest.out" 2>/dev/null || break
-    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
-    as_fn_arith $ac_count + 1 && ac_count=$as_val
-    if test $ac_count -gt ${ac_path_FGREP_max-0}; then
-      # Best one so far, save it but keep looking for a better one
-      ac_cv_path_FGREP="$ac_path_FGREP"
-      ac_path_FGREP_max=$ac_count
-    fi
-    # 10*(2^10) chars as input seems more than enough
-    test $ac_count -gt 10 && break
-  done
-  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
-esac
-
-      $ac_path_FGREP_found && break 3
-    done
-  done
-  done
-IFS=$as_save_IFS
-  if test -z "$ac_cv_path_FGREP"; then
-    as_fn_error $? "no acceptable fgrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
-  fi
-else
-  ac_cv_path_FGREP=$FGREP
-fi
-
-   fi
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_FGREP" >&5
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-
-
-test -z "$GREP" && GREP=grep
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-# Check whether --with-gnu-ld was given.
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-else
-  with_gnu_ld=no
-fi
-
-ac_prog=ld
-if test "$GCC" = yes; then
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-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld used by $CC" >&5
-$as_echo_n "checking for ld used by $CC... " >&6; }
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-    # gcc leaves a trailing carriage return which upsets mingw
-    ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
-  *)
-    ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
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-      re_direlt='/[^/][^/]*/\.\./'
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-      ac_prog=`$ECHO "$ac_prog"| $SED 's%\\\\%/%g'`
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-	ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"`
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-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for non-GNU ld" >&5
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-if test "${lt_cv_path_LD+set}" = set; then :
-  $as_echo_n "(cached) " >&6
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-  if test -z "$LD"; then
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-    if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
-      lt_cv_path_LD="$ac_dir/$ac_prog"
-      # Check to see if the program is GNU ld.  I'd rather use --version,
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-      case `"$lt_cv_path_LD" -v 2>&1 </dev/null` in
-      *GNU* | *'with BFD'*)
-	test "$with_gnu_ld" != no && break
-	;;
-      *)
-	test "$with_gnu_ld" != yes && break
-	;;
-      esac
-    fi
-  done
-  IFS="$lt_save_ifs"
-else
-  lt_cv_path_LD="$LD" # Let the user override the test with a path.
-fi
-fi
-
-LD="$lt_cv_path_LD"
-if test -n "$LD"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LD" >&5
-$as_echo "$LD" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-test -z "$LD" && as_fn_error $? "no acceptable ld found in \$PATH" "$LINENO" 5
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the linker ($LD) is GNU ld" >&5
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-if test "${lt_cv_prog_gnu_ld+set}" = set; then :
-  $as_echo_n "(cached) " >&6
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-case `$LD -v 2>&1 </dev/null` in
-*GNU* | *'with BFD'*)
-  lt_cv_prog_gnu_ld=yes
-  ;;
-*)
-  lt_cv_prog_gnu_ld=no
-  ;;
-esac
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_gnu_ld" >&5
-$as_echo "$lt_cv_prog_gnu_ld" >&6; }
-with_gnu_ld=$lt_cv_prog_gnu_ld
-
-
-
-
-
-
-
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for BSD- or MS-compatible name lister (nm)" >&5
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-else
-  lt_nm_to_check="${ac_tool_prefix}nm"
-  if test -n "$ac_tool_prefix" && test "$build" = "$host"; then
-    lt_nm_to_check="$lt_nm_to_check nm"
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-	# Check to see if the nm accepts a BSD-compat flag.
-	# Adding the `sed 1q' prevents false positives on HP-UX, which says:
-	#   nm: unknown option "B" ignored
-	# Tru64's nm complains that /dev/null is an invalid object file
-	case `"$tmp_nm" -B /dev/null 2>&1 | sed '1q'` in
-	*/dev/null* | *'Invalid file or object type'*)
-	  lt_cv_path_NM="$tmp_nm -B"
-	  break
-	  ;;
-	*)
-	  case `"$tmp_nm" -p /dev/null 2>&1 | sed '1q'` in
-	  */dev/null*)
-	    lt_cv_path_NM="$tmp_nm -p"
-	    break
-	    ;;
-	  *)
-	    lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but
-	    continue # so that we can try to find one that supports BSD flags
-	    ;;
-	  esac
-	  ;;
-	esac
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-    done
-    IFS="$lt_save_ifs"
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-  : ${lt_cv_path_NM=no}
-fi
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_NM" >&5
-$as_echo "$lt_cv_path_NM" >&6; }
-if test "$lt_cv_path_NM" != "no"; then
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-  if test -n "$DUMPBIN"; then
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-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
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-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
-    ac_cv_prog_DUMPBIN="$ac_tool_prefix$ac_prog"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
-
-fi
-fi
-DUMPBIN=$ac_cv_prog_DUMPBIN
-if test -n "$DUMPBIN"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DUMPBIN" >&5
-$as_echo "$DUMPBIN" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-    test -n "$DUMPBIN" && break
-  done
-fi
-if test -z "$DUMPBIN"; then
-  ac_ct_DUMPBIN=$DUMPBIN
-  for ac_prog in "dumpbin -symbols" "link -dump -symbols"
-do
-  # Extract the first word of "$ac_prog", so it can be a program name with args.
-set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_DUMPBIN+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$ac_ct_DUMPBIN"; then
-  ac_cv_prog_ac_ct_DUMPBIN="$ac_ct_DUMPBIN" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
-    ac_cv_prog_ac_ct_DUMPBIN="$ac_prog"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_DUMPBIN=$ac_cv_prog_ac_ct_DUMPBIN
-if test -n "$ac_ct_DUMPBIN"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DUMPBIN" >&5
-$as_echo "$ac_ct_DUMPBIN" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-  test -n "$ac_ct_DUMPBIN" && break
-done
-
-  if test "x$ac_ct_DUMPBIN" = x; then
-    DUMPBIN=":"
-  else
-    case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
-    DUMPBIN=$ac_ct_DUMPBIN
-  fi
-fi
-
-
-  if test "$DUMPBIN" != ":"; then
-    NM="$DUMPBIN"
-  fi
-fi
-test -z "$NM" && NM=nm
-
-
-
-
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking the name lister ($NM) interface" >&5
-$as_echo_n "checking the name lister ($NM) interface... " >&6; }
-if test "${lt_cv_nm_interface+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  lt_cv_nm_interface="BSD nm"
-  echo "int some_variable = 0;" > conftest.$ac_ext
-  (eval echo "\"\$as_me:4494: $ac_compile\"" >&5)
-  (eval "$ac_compile" 2>conftest.err)
-  cat conftest.err >&5
-  (eval echo "\"\$as_me:4497: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
-  (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out)
-  cat conftest.err >&5
-  (eval echo "\"\$as_me:4500: output\"" >&5)
-  cat conftest.out >&5
-  if $GREP 'External.*some_variable' conftest.out > /dev/null; then
-    lt_cv_nm_interface="MS dumpbin"
-  fi
-  rm -f conftest*
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_nm_interface" >&5
-$as_echo "$lt_cv_nm_interface" >&6; }
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ln -s works" >&5
-$as_echo_n "checking whether ln -s works... " >&6; }
-LN_S=$as_ln_s
-if test "$LN_S" = "ln -s"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no, using $LN_S" >&5
-$as_echo "no, using $LN_S" >&6; }
-fi
-
-# find the maximum length of command line arguments
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking the maximum length of command line arguments" >&5
-$as_echo_n "checking the maximum length of command line arguments... " >&6; }
-if test "${lt_cv_sys_max_cmd_len+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-    i=0
-  teststring="ABCD"
-
-  case $build_os in
-  msdosdjgpp*)
-    # On DJGPP, this test can blow up pretty badly due to problems in libc
-    # (any single argument exceeding 2000 bytes causes a buffer overrun
-    # during glob expansion).  Even if it were fixed, the result of this
-    # check would be larger than it should be.
-    lt_cv_sys_max_cmd_len=12288;    # 12K is about right
-    ;;
-
-  gnu*)
-    # Under GNU Hurd, this test is not required because there is
-    # no limit to the length of command line arguments.
-    # Libtool will interpret -1 as no limit whatsoever
-    lt_cv_sys_max_cmd_len=-1;
-    ;;
-
-  cygwin* | mingw* | cegcc*)
-    # On Win9x/ME, this test blows up -- it succeeds, but takes
-    # about 5 minutes as the teststring grows exponentially.
-    # Worse, since 9x/ME are not pre-emptively multitasking,
-    # you end up with a "frozen" computer, even though with patience
-    # the test eventually succeeds (with a max line length of 256k).
-    # Instead, let's just punt: use the minimum linelength reported by
-    # all of the supported platforms: 8192 (on NT/2K/XP).
-    lt_cv_sys_max_cmd_len=8192;
-    ;;
-
-  amigaos*)
-    # On AmigaOS with pdksh, this test takes hours, literally.
-    # So we just punt and use a minimum line length of 8192.
-    lt_cv_sys_max_cmd_len=8192;
-    ;;
-
-  netbsd* | freebsd* | openbsd* | darwin* | dragonfly*)
-    # This has been around since 386BSD, at least.  Likely further.
-    if test -x /sbin/sysctl; then
-      lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax`
-    elif test -x /usr/sbin/sysctl; then
-      lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax`
-    else
-      lt_cv_sys_max_cmd_len=65536	# usable default for all BSDs
-    fi
-    # And add a safety zone
-    lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
-    lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
-    ;;
-
-  interix*)
-    # We know the value 262144 and hardcode it with a safety zone (like BSD)
-    lt_cv_sys_max_cmd_len=196608
-    ;;
-
-  osf*)
-    # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure
-    # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not
-    # nice to cause kernel panics so lets avoid the loop below.
-    # First set a reasonable default.
-    lt_cv_sys_max_cmd_len=16384
-    #
-    if test -x /sbin/sysconfig; then
-      case `/sbin/sysconfig -q proc exec_disable_arg_limit` in
-        *1*) lt_cv_sys_max_cmd_len=-1 ;;
-      esac
-    fi
-    ;;
-  sco3.2v5*)
-    lt_cv_sys_max_cmd_len=102400
-    ;;
-  sysv5* | sco5v6* | sysv4.2uw2*)
-    kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null`
-    if test -n "$kargmax"; then
-      lt_cv_sys_max_cmd_len=`echo $kargmax | sed 's/.*[	 ]//'`
-    else
-      lt_cv_sys_max_cmd_len=32768
-    fi
-    ;;
-  *)
-    lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null`
-    if test -n "$lt_cv_sys_max_cmd_len"; then
-      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
-      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
-    else
-      # Make teststring a little bigger before we do anything with it.
-      # a 1K string should be a reasonable start.
-      for i in 1 2 3 4 5 6 7 8 ; do
-        teststring=$teststring$teststring
-      done
-      SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}}
-      # If test is not a shell built-in, we'll probably end up computing a
-      # maximum length that is only half of the actual maximum length, but
-      # we can't tell.
-      while { test "X"`$SHELL $0 --fallback-echo "X$teststring$teststring" 2>/dev/null` \
-	         = "XX$teststring$teststring"; } >/dev/null 2>&1 &&
-	      test $i != 17 # 1/2 MB should be enough
-      do
-        i=`expr $i + 1`
-        teststring=$teststring$teststring
-      done
-      # Only check the string length outside the loop.
-      lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1`
-      teststring=
-      # Add a significant safety factor because C++ compilers can tack on
-      # massive amounts of additional arguments before passing them to the
-      # linker.  It appears as though 1/2 is a usable value.
-      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2`
-    fi
-    ;;
-  esac
-
-fi
-
-if test -n $lt_cv_sys_max_cmd_len ; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sys_max_cmd_len" >&5
-$as_echo "$lt_cv_sys_max_cmd_len" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: none" >&5
-$as_echo "none" >&6; }
-fi
-max_cmd_len=$lt_cv_sys_max_cmd_len
-
-
-
-
-
-
-: ${CP="cp -f"}
-: ${MV="mv -f"}
-: ${RM="rm -f"}
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the shell understands some XSI constructs" >&5
-$as_echo_n "checking whether the shell understands some XSI constructs... " >&6; }
-# Try some XSI features
-xsi_shell=no
-( _lt_dummy="a/b/c"
-  test "${_lt_dummy##*/},${_lt_dummy%/*},"${_lt_dummy%"$_lt_dummy"}, \
-      = c,a/b,, \
-    && eval 'test $(( 1 + 1 )) -eq 2 \
-    && test "${#_lt_dummy}" -eq 5' ) >/dev/null 2>&1 \
-  && xsi_shell=yes
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xsi_shell" >&5
-$as_echo "$xsi_shell" >&6; }
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the shell understands \"+=\"" >&5
-$as_echo_n "checking whether the shell understands \"+=\"... " >&6; }
-lt_shell_append=no
-( foo=bar; set foo baz; eval "$1+=\$2" && test "$foo" = barbaz ) \
-    >/dev/null 2>&1 \
-  && lt_shell_append=yes
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_shell_append" >&5
-$as_echo "$lt_shell_append" >&6; }
-
-
-if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
-  lt_unset=unset
-else
-  lt_unset=false
-fi
-
-
-
-
-
-# test EBCDIC or ASCII
-case `echo X|tr X '\101'` in
- A) # ASCII based system
-    # \n is not interpreted correctly by Solaris 8 /usr/ucb/tr
-  lt_SP2NL='tr \040 \012'
-  lt_NL2SP='tr \015\012 \040\040'
-  ;;
- *) # EBCDIC based system
-  lt_SP2NL='tr \100 \n'
-  lt_NL2SP='tr \r\n \100\100'
-  ;;
-esac
-
-
-
-
-
-
-
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $LD option to reload object files" >&5
-$as_echo_n "checking for $LD option to reload object files... " >&6; }
-if test "${lt_cv_ld_reload_flag+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  lt_cv_ld_reload_flag='-r'
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_reload_flag" >&5
-$as_echo "$lt_cv_ld_reload_flag" >&6; }
-reload_flag=$lt_cv_ld_reload_flag
-case $reload_flag in
-"" | " "*) ;;
-*) reload_flag=" $reload_flag" ;;
-esac
-reload_cmds='$LD$reload_flag -o $output$reload_objs'
-case $host_os in
-  darwin*)
-    if test "$GCC" = yes; then
-      reload_cmds='$LTCC $LTCFLAGS -nostdlib ${wl}-r -o $output$reload_objs'
-    else
-      reload_cmds='$LD$reload_flag -o $output$reload_objs'
-    fi
-    ;;
-esac
-
-
-
-
-
-
-
-
-
-if test -n "$ac_tool_prefix"; then
-  # Extract the first word of "${ac_tool_prefix}objdump", so it can be a program name with args.
-set dummy ${ac_tool_prefix}objdump; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_OBJDUMP+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$OBJDUMP"; then
-  ac_cv_prog_OBJDUMP="$OBJDUMP" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
-    ac_cv_prog_OBJDUMP="${ac_tool_prefix}objdump"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
-
-fi
-fi
-OBJDUMP=$ac_cv_prog_OBJDUMP
-if test -n "$OBJDUMP"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OBJDUMP" >&5
-$as_echo "$OBJDUMP" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_OBJDUMP"; then
-  ac_ct_OBJDUMP=$OBJDUMP
-  # Extract the first word of "objdump", so it can be a program name with args.
-set dummy objdump; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_OBJDUMP+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$ac_ct_OBJDUMP"; then
-  ac_cv_prog_ac_ct_OBJDUMP="$ac_ct_OBJDUMP" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
-    ac_cv_prog_ac_ct_OBJDUMP="objdump"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_OBJDUMP=$ac_cv_prog_ac_ct_OBJDUMP
-if test -n "$ac_ct_OBJDUMP"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJDUMP" >&5
-$as_echo "$ac_ct_OBJDUMP" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-  if test "x$ac_ct_OBJDUMP" = x; then
-    OBJDUMP="false"
-  else
-    case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
-    OBJDUMP=$ac_ct_OBJDUMP
-  fi
-else
-  OBJDUMP="$ac_cv_prog_OBJDUMP"
-fi
-
-test -z "$OBJDUMP" && OBJDUMP=objdump
-
-
-
-
-
-
-
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to recognize dependent libraries" >&5
-$as_echo_n "checking how to recognize dependent libraries... " >&6; }
-if test "${lt_cv_deplibs_check_method+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  lt_cv_file_magic_cmd='$MAGIC_CMD'
-lt_cv_file_magic_test_file=
-lt_cv_deplibs_check_method='unknown'
-# Need to set the preceding variable on all platforms that support
-# interlibrary dependencies.
-# 'none' -- dependencies not supported.
-# `unknown' -- same as none, but documents that we really don't know.
-# 'pass_all' -- all dependencies passed with no checks.
-# 'test_compile' -- check by making test program.
-# 'file_magic [[regex]]' -- check by looking for files in library path
-# which responds to the $file_magic_cmd with a given extended regex.
-# If you have `file' or equivalent on your system and you're not sure
-# whether `pass_all' will *always* work, you probably want this one.
-
-case $host_os in
-aix[4-9]*)
-  lt_cv_deplibs_check_method=pass_all
-  ;;
-
-beos*)
-  lt_cv_deplibs_check_method=pass_all
-  ;;
-
-bsdi[45]*)
-  lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib)'
-  lt_cv_file_magic_cmd='/usr/bin/file -L'
-  lt_cv_file_magic_test_file=/shlib/libc.so
-  ;;
-
-cygwin*)
-  # func_win32_libid is a shell function defined in ltmain.sh
-  lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
-  lt_cv_file_magic_cmd='func_win32_libid'
-  ;;
-
-mingw* | pw32*)
-  # Base MSYS/MinGW do not provide the 'file' command needed by
-  # func_win32_libid shell function, so use a weaker test based on 'objdump',
-  # unless we find 'file', for example because we are cross-compiling.
-  if ( file / ) >/dev/null 2>&1; then
-    lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
-    lt_cv_file_magic_cmd='func_win32_libid'
-  else
-    lt_cv_deplibs_check_method='file_magic file format pei*-i386(.*architecture: i386)?'
-    lt_cv_file_magic_cmd='$OBJDUMP -f'
-  fi
-  ;;
-
-cegcc)
-  # use the weaker test based on 'objdump'. See mingw*.
-  lt_cv_deplibs_check_method='file_magic file format pe-arm-.*little(.*architecture: arm)?'
-  lt_cv_file_magic_cmd='$OBJDUMP -f'
-  ;;
-
-darwin* | rhapsody*)
-  lt_cv_deplibs_check_method=pass_all
-  ;;
-
-freebsd* | dragonfly*)
-  if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
-    case $host_cpu in
-    i*86 )
-      # Not sure whether the presence of OpenBSD here was a mistake.
-      # Let's accept both of them until this is cleared up.
-      lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD|DragonFly)/i[3-9]86 (compact )?demand paged shared library'
-      lt_cv_file_magic_cmd=/usr/bin/file
-      lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*`
-      ;;
-    esac
-  else
-    lt_cv_deplibs_check_method=pass_all
-  fi
-  ;;
-
-gnu*)
-  lt_cv_deplibs_check_method=pass_all
-  ;;
-
-hpux10.20* | hpux11*)
-  lt_cv_file_magic_cmd=/usr/bin/file
-  case $host_cpu in
-  ia64*)
-    lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF-[0-9][0-9]) shared object file - IA64'
-    lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so
-    ;;
-  hppa*64*)
-    lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF-[0-9][0-9]) shared object file - PA-RISC [0-9].[0-9]'
-    lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl
-    ;;
-  *)
-    lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|PA-RISC[0-9].[0-9]) shared library'
-    lt_cv_file_magic_test_file=/usr/lib/libc.sl
-    ;;
-  esac
-  ;;
-
-interix[3-9]*)
-  # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here
-  lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|\.a)$'
-  ;;
-
-irix5* | irix6* | nonstopux*)
-  case $LD in
-  *-32|*"-32 ") libmagic=32-bit;;
-  *-n32|*"-n32 ") libmagic=N32;;
-  *-64|*"-64 ") libmagic=64-bit;;
-  *) libmagic=never-match;;
-  esac
-  lt_cv_deplibs_check_method=pass_all
-  ;;
-
-# This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu)
-  lt_cv_deplibs_check_method=pass_all
-  ;;
-
-netbsd* | netbsdelf*-gnu)
-  if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
-    lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$'
-  else
-    lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|_pic\.a)$'
-  fi
-  ;;
-
-newos6*)
-  lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (executable|dynamic lib)'
-  lt_cv_file_magic_cmd=/usr/bin/file
-  lt_cv_file_magic_test_file=/usr/lib/libnls.so
-  ;;
-
-*nto* | *qnx*)
-  lt_cv_deplibs_check_method=pass_all
-  ;;
-
-openbsd*)
-  if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
-    lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|\.so|_pic\.a)$'
-  else
-    lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$'
-  fi
-  ;;
-
-osf3* | osf4* | osf5*)
-  lt_cv_deplibs_check_method=pass_all
-  ;;
-
-rdos*)
-  lt_cv_deplibs_check_method=pass_all
-  ;;
-
-solaris*)
-  lt_cv_deplibs_check_method=pass_all
-  ;;
-
-sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
-  lt_cv_deplibs_check_method=pass_all
-  ;;
-
-sysv4 | sysv4.3*)
-  case $host_vendor in
-  motorola)
-    lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib) M[0-9][0-9]* Version [0-9]'
-    lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*`
-    ;;
-  ncr)
-    lt_cv_deplibs_check_method=pass_all
-    ;;
-  sequent)
-    lt_cv_file_magic_cmd='/bin/file'
-    lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [LM]SB (shared object|dynamic lib )'
-    ;;
-  sni)
-    lt_cv_file_magic_cmd='/bin/file'
-    lt_cv_deplibs_check_method="file_magic ELF [0-9][0-9]*-bit [LM]SB dynamic lib"
-    lt_cv_file_magic_test_file=/lib/libc.so
-    ;;
-  siemens)
-    lt_cv_deplibs_check_method=pass_all
-    ;;
-  pc)
-    lt_cv_deplibs_check_method=pass_all
-    ;;
-  esac
-  ;;
-
-tpf*)
-  lt_cv_deplibs_check_method=pass_all
-  ;;
-esac
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_deplibs_check_method" >&5
-$as_echo "$lt_cv_deplibs_check_method" >&6; }
-file_magic_cmd=$lt_cv_file_magic_cmd
-deplibs_check_method=$lt_cv_deplibs_check_method
-test -z "$deplibs_check_method" && deplibs_check_method=unknown
-
-
-
-
-
-
-
-
-
-
-
-
-if test -n "$ac_tool_prefix"; then
-  # Extract the first word of "${ac_tool_prefix}ar", so it can be a program name with args.
-set dummy ${ac_tool_prefix}ar; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_AR+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$AR"; then
-  ac_cv_prog_AR="$AR" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
-    ac_cv_prog_AR="${ac_tool_prefix}ar"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
-
-fi
-fi
-AR=$ac_cv_prog_AR
-if test -n "$AR"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5
-$as_echo "$AR" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_AR"; then
-  ac_ct_AR=$AR
-  # Extract the first word of "ar", so it can be a program name with args.
-set dummy ar; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_AR+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$ac_ct_AR"; then
-  ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
-    ac_cv_prog_ac_ct_AR="ar"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_AR=$ac_cv_prog_ac_ct_AR
-if test -n "$ac_ct_AR"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5
-$as_echo "$ac_ct_AR" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-  if test "x$ac_ct_AR" = x; then
-    AR="false"
-  else
-    case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
-    AR=$ac_ct_AR
-  fi
-else
-  AR="$ac_cv_prog_AR"
-fi
-
-test -z "$AR" && AR=ar
-test -z "$AR_FLAGS" && AR_FLAGS=cru
-
-
-
-
-
-
-
-
-
-
-
-if test -n "$ac_tool_prefix"; then
-  # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args.
-set dummy ${ac_tool_prefix}strip; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_STRIP+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$STRIP"; then
-  ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
-    ac_cv_prog_STRIP="${ac_tool_prefix}strip"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
-
-fi
-fi
-STRIP=$ac_cv_prog_STRIP
-if test -n "$STRIP"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5
-$as_echo "$STRIP" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_STRIP"; then
-  ac_ct_STRIP=$STRIP
-  # Extract the first word of "strip", so it can be a program name with args.
-set dummy strip; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_STRIP+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$ac_ct_STRIP"; then
-  ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
-    ac_cv_prog_ac_ct_STRIP="strip"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
-if test -n "$ac_ct_STRIP"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5
-$as_echo "$ac_ct_STRIP" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-  if test "x$ac_ct_STRIP" = x; then
-    STRIP=":"
-  else
-    case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
-    STRIP=$ac_ct_STRIP
-  fi
-else
-  STRIP="$ac_cv_prog_STRIP"
-fi
-
-test -z "$STRIP" && STRIP=:
-
-
-
-
-
-
-if test -n "$ac_tool_prefix"; then
-  # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args.
-set dummy ${ac_tool_prefix}ranlib; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_RANLIB+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$RANLIB"; then
-  ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
-    ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
-
-fi
-fi
-RANLIB=$ac_cv_prog_RANLIB
-if test -n "$RANLIB"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5
-$as_echo "$RANLIB" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_RANLIB"; then
-  ac_ct_RANLIB=$RANLIB
-  # Extract the first word of "ranlib", so it can be a program name with args.
-set dummy ranlib; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_RANLIB+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$ac_ct_RANLIB"; then
-  ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
-    ac_cv_prog_ac_ct_RANLIB="ranlib"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB
-if test -n "$ac_ct_RANLIB"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RANLIB" >&5
-$as_echo "$ac_ct_RANLIB" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-  if test "x$ac_ct_RANLIB" = x; then
-    RANLIB=":"
-  else
-    case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
-    RANLIB=$ac_ct_RANLIB
-  fi
-else
-  RANLIB="$ac_cv_prog_RANLIB"
-fi
-
-test -z "$RANLIB" && RANLIB=:
-
-
-
-
-
-
-# Determine commands to create old-style static archives.
-old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs'
-old_postinstall_cmds='chmod 644 $oldlib'
-old_postuninstall_cmds=
-
-if test -n "$RANLIB"; then
-  case $host_os in
-  openbsd*)
-    old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$oldlib"
-    ;;
-  *)
-    old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$oldlib"
-    ;;
-  esac
-  old_archive_cmds="$old_archive_cmds~\$RANLIB \$oldlib"
-fi
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-# If no C compiler was specified, use CC.
-LTCC=${LTCC-"$CC"}
-
-# If no C compiler flags were specified, use CFLAGS.
-LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
-
-# Allow CC to be a program name with arguments.
-compiler=$CC
-
-
-# Check for command to grab the raw symbol name followed by C symbol from nm.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking command to parse $NM output from $compiler object" >&5
-$as_echo_n "checking command to parse $NM output from $compiler object... " >&6; }
-if test "${lt_cv_sys_global_symbol_pipe+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-
-# These are sane defaults that work on at least a few old systems.
-# [They come from Ultrix.  What could be older than Ultrix?!! ;)]
-
-# Character class describing NM global symbol codes.
-symcode='[BCDEGRST]'
-
-# Regexp to match symbols that can be accessed directly from C.
-sympat='\([_A-Za-z][_A-Za-z0-9]*\)'
-
-# Define system-specific variables.
-case $host_os in
-aix*)
-  symcode='[BCDT]'
-  ;;
-cygwin* | mingw* | pw32* | cegcc*)
-  symcode='[ABCDGISTW]'
-  ;;
-hpux*)
-  if test "$host_cpu" = ia64; then
-    symcode='[ABCDEGRST]'
-  fi
-  ;;
-irix* | nonstopux*)
-  symcode='[BCDEGRST]'
-  ;;
-osf*)
-  symcode='[BCDEGQRST]'
-  ;;
-solaris*)
-  symcode='[BDRT]'
-  ;;
-sco3.2v5*)
-  symcode='[DT]'
-  ;;
-sysv4.2uw2*)
-  symcode='[DT]'
-  ;;
-sysv5* | sco5v6* | unixware* | OpenUNIX*)
-  symcode='[ABDT]'
-  ;;
-sysv4)
-  symcode='[DFNSTU]'
-  ;;
-esac
-
-# If we're using GNU nm, then use its standard symbol codes.
-case `$NM -V 2>&1` in
-*GNU* | *'with BFD'*)
-  symcode='[ABCDGIRSTW]' ;;
-esac
-
-# Transform an extracted symbol line into a proper C declaration.
-# Some systems (esp. on ia64) link data and code symbols differently,
-# so use this general approach.
-lt_cv_sys_global_symbol_to_cdecl="sed -n -e 's/^T .* \(.*\)$/extern int \1();/p' -e 's/^$symcode* .* \(.*\)$/extern char \1;/p'"
-
-# Transform an extracted symbol line into symbol name and symbol address
-lt_cv_sys_global_symbol_to_c_name_address="sed -n -e 's/^: \([^ ]*\) $/  {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([^ ]*\) \([^ ]*\)$/  {\"\2\", (void *) \&\2},/p'"
-lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n -e 's/^: \([^ ]*\) $/  {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([^ ]*\) \(lib[^ ]*\)$/  {\"\2\", (void *) \&\2},/p' -e 's/^$symcode* \([^ ]*\) \([^ ]*\)$/  {\"lib\2\", (void *) \&\2},/p'"
-
-# Handle CRLF in mingw tool chain
-opt_cr=
-case $build_os in
-mingw*)
-  opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp
-  ;;
-esac
-
-# Try without a prefix underscore, then with it.
-for ac_symprfx in "" "_"; do
-
-  # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol.
-  symxfrm="\\1 $ac_symprfx\\2 \\2"
-
-  # Write the raw and C identifiers.
-  if test "$lt_cv_nm_interface" = "MS dumpbin"; then
-    # Fake it for dumpbin and say T for any non-static function
-    # and D for any global variable.
-    # Also find C++ and __fastcall symbols from MSVC++,
-    # which start with @ or ?.
-    lt_cv_sys_global_symbol_pipe="$AWK '"\
-"     {last_section=section; section=\$ 3};"\
-"     /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\
-"     \$ 0!~/External *\|/{next};"\
-"     / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\
-"     {if(hide[section]) next};"\
-"     {f=0}; \$ 0~/\(\).*\|/{f=1}; {printf f ? \"T \" : \"D \"};"\
-"     {split(\$ 0, a, /\||\r/); split(a[2], s)};"\
-"     s[1]~/^[@?]/{print s[1], s[1]; next};"\
-"     s[1]~prfx {split(s[1],t,\"@\"); print t[1], substr(t[1],length(prfx))}"\
-"     ' prfx=^$ac_symprfx"
-  else
-    lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[	 ]\($symcode$symcode*\)[	 ][	 ]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'"
-  fi
-
-  # Check to see that the pipe works correctly.
-  pipe_works=no
-
-  rm -f conftest*
-  cat > conftest.$ac_ext <<_LT_EOF
-#ifdef __cplusplus
-extern "C" {
-#endif
-char nm_test_var;
-void nm_test_func(void);
-void nm_test_func(void){}
-#ifdef __cplusplus
-}
-#endif
-int main(){nm_test_var='a';nm_test_func();return(0);}
-_LT_EOF
-
-  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
-  (eval $ac_compile) 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; then
-    # Now try to grab the symbols.
-    nlist=conftest.nm
-    if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$NM conftest.$ac_objext \| $lt_cv_sys_global_symbol_pipe \> $nlist\""; } >&5
-  (eval $NM conftest.$ac_objext \| $lt_cv_sys_global_symbol_pipe \> $nlist) 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; } && test -s "$nlist"; then
-      # Try sorting and uniquifying the output.
-      if sort "$nlist" | uniq > "$nlist"T; then
-	mv -f "$nlist"T "$nlist"
-      else
-	rm -f "$nlist"T
-      fi
-
-      # Make sure that we snagged all the symbols we need.
-      if $GREP ' nm_test_var$' "$nlist" >/dev/null; then
-	if $GREP ' nm_test_func$' "$nlist" >/dev/null; then
-	  cat <<_LT_EOF > conftest.$ac_ext
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-_LT_EOF
-	  # Now generate the symbol file.
-	  eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext'
-
-	  cat <<_LT_EOF >> conftest.$ac_ext
-
-/* The mapping between symbol names and symbols.  */
-const struct {
-  const char *name;
-  void       *address;
-}
-lt__PROGRAM__LTX_preloaded_symbols[] =
-{
-  { "@PROGRAM@", (void *) 0 },
-_LT_EOF
-	  $SED "s/^$symcode$symcode* \(.*\) \(.*\)$/  {\"\2\", (void *) \&\2},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext
-	  cat <<\_LT_EOF >> conftest.$ac_ext
-  {0, (void *) 0}
-};
-
-/* This works around a problem in FreeBSD linker */
-#ifdef FREEBSD_WORKAROUND
-static const void *lt_preloaded_setup() {
-  return lt__PROGRAM__LTX_preloaded_symbols;
-}
-#endif
-
-#ifdef __cplusplus
-}
-#endif
-_LT_EOF
-	  # Now try linking the two files.
-	  mv conftest.$ac_objext conftstm.$ac_objext
-	  lt_save_LIBS="$LIBS"
-	  lt_save_CFLAGS="$CFLAGS"
-	  LIBS="conftstm.$ac_objext"
-	  CFLAGS="$CFLAGS$lt_prog_compiler_no_builtin_flag"
-	  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
-  (eval $ac_link) 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; } && test -s conftest${ac_exeext}; then
-	    pipe_works=yes
-	  fi
-	  LIBS="$lt_save_LIBS"
-	  CFLAGS="$lt_save_CFLAGS"
-	else
-	  echo "cannot find nm_test_func in $nlist" >&5
-	fi
-      else
-	echo "cannot find nm_test_var in $nlist" >&5
-      fi
-    else
-      echo "cannot run $lt_cv_sys_global_symbol_pipe" >&5
-    fi
-  else
-    echo "$progname: failed program was:" >&5
-    cat conftest.$ac_ext >&5
-  fi
-  rm -rf conftest* conftst*
-
-  # Do not use the global_symbol_pipe unless it works.
-  if test "$pipe_works" = yes; then
-    break
-  else
-    lt_cv_sys_global_symbol_pipe=
-  fi
-done
-
-fi
-
-if test -z "$lt_cv_sys_global_symbol_pipe"; then
-  lt_cv_sys_global_symbol_to_cdecl=
-fi
-if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: failed" >&5
-$as_echo "failed" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
-$as_echo "ok" >&6; }
-fi
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-# Check whether --enable-libtool-lock was given.
-if test "${enable_libtool_lock+set}" = set; then :
-  enableval=$enable_libtool_lock;
-fi
-
-test "x$enable_libtool_lock" != xno && enable_libtool_lock=yes
-
-# Some flags need to be propagated to the compiler or linker for good
-# libtool support.
-case $host in
-ia64-*-hpux*)
-  # Find out which ABI we are using.
-  echo 'int i;' > conftest.$ac_ext
-  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
-  (eval $ac_compile) 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; then
-    case `/usr/bin/file conftest.$ac_objext` in
-      *ELF-32*)
-	HPUX_IA64_MODE="32"
-	;;
-      *ELF-64*)
-	HPUX_IA64_MODE="64"
-	;;
-    esac
-  fi
-  rm -rf conftest*
-  ;;
-*-*-irix6*)
-  # Find out which ABI we are using.
-  echo '#line 5706 "configure"' > conftest.$ac_ext
-  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
-  (eval $ac_compile) 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; then
-    if test "$lt_cv_prog_gnu_ld" = yes; then
-      case `/usr/bin/file conftest.$ac_objext` in
-	*32-bit*)
-	  LD="${LD-ld} -melf32bsmip"
-	  ;;
-	*N32*)
-	  LD="${LD-ld} -melf32bmipn32"
-	  ;;
-	*64-bit*)
-	  LD="${LD-ld} -melf64bmip"
-	;;
-      esac
-    else
-      case `/usr/bin/file conftest.$ac_objext` in
-	*32-bit*)
-	  LD="${LD-ld} -32"
-	  ;;
-	*N32*)
-	  LD="${LD-ld} -n32"
-	  ;;
-	*64-bit*)
-	  LD="${LD-ld} -64"
-	  ;;
-      esac
-    fi
-  fi
-  rm -rf conftest*
-  ;;
-
-x86_64-*kfreebsd*-gnu|x86_64-*linux*|ppc*-*linux*|powerpc*-*linux*| \
-s390*-*linux*|s390*-*tpf*|sparc*-*linux*)
-  # Find out which ABI we are using.
-  echo 'int i;' > conftest.$ac_ext
-  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
-  (eval $ac_compile) 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; then
-    case `/usr/bin/file conftest.o` in
-      *32-bit*)
-	case $host in
-	  x86_64-*kfreebsd*-gnu)
-	    LD="${LD-ld} -m elf_i386_fbsd"
-	    ;;
-	  x86_64-*linux*)
-	    LD="${LD-ld} -m elf_i386"
-	    ;;
-	  ppc64-*linux*|powerpc64-*linux*)
-	    LD="${LD-ld} -m elf32ppclinux"
-	    ;;
-	  s390x-*linux*)
-	    LD="${LD-ld} -m elf_s390"
-	    ;;
-	  sparc64-*linux*)
-	    LD="${LD-ld} -m elf32_sparc"
-	    ;;
-	esac
-	;;
-      *64-bit*)
-	case $host in
-	  x86_64-*kfreebsd*-gnu)
-	    LD="${LD-ld} -m elf_x86_64_fbsd"
-	    ;;
-	  x86_64-*linux*)
-	    LD="${LD-ld} -m elf_x86_64"
-	    ;;
-	  ppc*-*linux*|powerpc*-*linux*)
-	    LD="${LD-ld} -m elf64ppc"
-	    ;;
-	  s390*-*linux*|s390*-*tpf*)
-	    LD="${LD-ld} -m elf64_s390"
-	    ;;
-	  sparc*-*linux*)
-	    LD="${LD-ld} -m elf64_sparc"
-	    ;;
-	esac
-	;;
-    esac
-  fi
-  rm -rf conftest*
-  ;;
-
-*-*-sco3.2v5*)
-  # On SCO OpenServer 5, we need -belf to get full-featured binaries.
-  SAVE_CFLAGS="$CFLAGS"
-  CFLAGS="$CFLAGS -belf"
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler needs -belf" >&5
-$as_echo_n "checking whether the C compiler needs -belf... " >&6; }
-if test "${lt_cv_cc_needs_belf+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-
-     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-int
-main ()
-{
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  lt_cv_cc_needs_belf=yes
-else
-  lt_cv_cc_needs_belf=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-     ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_cc_needs_belf" >&5
-$as_echo "$lt_cv_cc_needs_belf" >&6; }
-  if test x"$lt_cv_cc_needs_belf" != x"yes"; then
-    # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
-    CFLAGS="$SAVE_CFLAGS"
-  fi
-  ;;
-sparc*-*solaris*)
-  # Find out which ABI we are using.
-  echo 'int i;' > conftest.$ac_ext
-  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
-  (eval $ac_compile) 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; then
-    case `/usr/bin/file conftest.o` in
-    *64-bit*)
-      case $lt_cv_prog_gnu_ld in
-      yes*) LD="${LD-ld} -m elf64_sparc" ;;
-      *)
-	if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then
-	  LD="${LD-ld} -64"
-	fi
-	;;
-      esac
-      ;;
-    esac
-  fi
-  rm -rf conftest*
-  ;;
-esac
-
-need_locks="$enable_libtool_lock"
-
-
-  case $host_os in
-    rhapsody* | darwin*)
-    if test -n "$ac_tool_prefix"; then
-  # Extract the first word of "${ac_tool_prefix}dsymutil", so it can be a program name with args.
-set dummy ${ac_tool_prefix}dsymutil; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_DSYMUTIL+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$DSYMUTIL"; then
-  ac_cv_prog_DSYMUTIL="$DSYMUTIL" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
-    ac_cv_prog_DSYMUTIL="${ac_tool_prefix}dsymutil"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
-
-fi
-fi
-DSYMUTIL=$ac_cv_prog_DSYMUTIL
-if test -n "$DSYMUTIL"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DSYMUTIL" >&5
-$as_echo "$DSYMUTIL" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_DSYMUTIL"; then
-  ac_ct_DSYMUTIL=$DSYMUTIL
-  # Extract the first word of "dsymutil", so it can be a program name with args.
-set dummy dsymutil; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_DSYMUTIL+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$ac_ct_DSYMUTIL"; then
-  ac_cv_prog_ac_ct_DSYMUTIL="$ac_ct_DSYMUTIL" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
-    ac_cv_prog_ac_ct_DSYMUTIL="dsymutil"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_DSYMUTIL=$ac_cv_prog_ac_ct_DSYMUTIL
-if test -n "$ac_ct_DSYMUTIL"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DSYMUTIL" >&5
-$as_echo "$ac_ct_DSYMUTIL" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-  if test "x$ac_ct_DSYMUTIL" = x; then
-    DSYMUTIL=":"
-  else
-    case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
-    DSYMUTIL=$ac_ct_DSYMUTIL
-  fi
-else
-  DSYMUTIL="$ac_cv_prog_DSYMUTIL"
-fi
-
-    if test -n "$ac_tool_prefix"; then
-  # Extract the first word of "${ac_tool_prefix}nmedit", so it can be a program name with args.
-set dummy ${ac_tool_prefix}nmedit; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_NMEDIT+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$NMEDIT"; then
-  ac_cv_prog_NMEDIT="$NMEDIT" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
-    ac_cv_prog_NMEDIT="${ac_tool_prefix}nmedit"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
-
-fi
-fi
-NMEDIT=$ac_cv_prog_NMEDIT
-if test -n "$NMEDIT"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $NMEDIT" >&5
-$as_echo "$NMEDIT" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_NMEDIT"; then
-  ac_ct_NMEDIT=$NMEDIT
-  # Extract the first word of "nmedit", so it can be a program name with args.
-set dummy nmedit; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_NMEDIT+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$ac_ct_NMEDIT"; then
-  ac_cv_prog_ac_ct_NMEDIT="$ac_ct_NMEDIT" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
-    ac_cv_prog_ac_ct_NMEDIT="nmedit"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_NMEDIT=$ac_cv_prog_ac_ct_NMEDIT
-if test -n "$ac_ct_NMEDIT"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_NMEDIT" >&5
-$as_echo "$ac_ct_NMEDIT" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-  if test "x$ac_ct_NMEDIT" = x; then
-    NMEDIT=":"
-  else
-    case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
-    NMEDIT=$ac_ct_NMEDIT
-  fi
-else
-  NMEDIT="$ac_cv_prog_NMEDIT"
-fi
-
-    if test -n "$ac_tool_prefix"; then
-  # Extract the first word of "${ac_tool_prefix}lipo", so it can be a program name with args.
-set dummy ${ac_tool_prefix}lipo; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_LIPO+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$LIPO"; then
-  ac_cv_prog_LIPO="$LIPO" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
-    ac_cv_prog_LIPO="${ac_tool_prefix}lipo"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
-
-fi
-fi
-LIPO=$ac_cv_prog_LIPO
-if test -n "$LIPO"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LIPO" >&5
-$as_echo "$LIPO" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_LIPO"; then
-  ac_ct_LIPO=$LIPO
-  # Extract the first word of "lipo", so it can be a program name with args.
-set dummy lipo; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_LIPO+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$ac_ct_LIPO"; then
-  ac_cv_prog_ac_ct_LIPO="$ac_ct_LIPO" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
-    ac_cv_prog_ac_ct_LIPO="lipo"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_LIPO=$ac_cv_prog_ac_ct_LIPO
-if test -n "$ac_ct_LIPO"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_LIPO" >&5
-$as_echo "$ac_ct_LIPO" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-  if test "x$ac_ct_LIPO" = x; then
-    LIPO=":"
-  else
-    case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
-    LIPO=$ac_ct_LIPO
-  fi
-else
-  LIPO="$ac_cv_prog_LIPO"
-fi
-
-    if test -n "$ac_tool_prefix"; then
-  # Extract the first word of "${ac_tool_prefix}otool", so it can be a program name with args.
-set dummy ${ac_tool_prefix}otool; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_OTOOL+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$OTOOL"; then
-  ac_cv_prog_OTOOL="$OTOOL" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
-    ac_cv_prog_OTOOL="${ac_tool_prefix}otool"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
-
-fi
-fi
-OTOOL=$ac_cv_prog_OTOOL
-if test -n "$OTOOL"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL" >&5
-$as_echo "$OTOOL" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_OTOOL"; then
-  ac_ct_OTOOL=$OTOOL
-  # Extract the first word of "otool", so it can be a program name with args.
-set dummy otool; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_OTOOL+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$ac_ct_OTOOL"; then
-  ac_cv_prog_ac_ct_OTOOL="$ac_ct_OTOOL" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
-    ac_cv_prog_ac_ct_OTOOL="otool"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_OTOOL=$ac_cv_prog_ac_ct_OTOOL
-if test -n "$ac_ct_OTOOL"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL" >&5
-$as_echo "$ac_ct_OTOOL" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-  if test "x$ac_ct_OTOOL" = x; then
-    OTOOL=":"
-  else
-    case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
-    OTOOL=$ac_ct_OTOOL
-  fi
-else
-  OTOOL="$ac_cv_prog_OTOOL"
-fi
-
-    if test -n "$ac_tool_prefix"; then
-  # Extract the first word of "${ac_tool_prefix}otool64", so it can be a program name with args.
-set dummy ${ac_tool_prefix}otool64; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_OTOOL64+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$OTOOL64"; then
-  ac_cv_prog_OTOOL64="$OTOOL64" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
-    ac_cv_prog_OTOOL64="${ac_tool_prefix}otool64"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
-
-fi
-fi
-OTOOL64=$ac_cv_prog_OTOOL64
-if test -n "$OTOOL64"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL64" >&5
-$as_echo "$OTOOL64" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_OTOOL64"; then
-  ac_ct_OTOOL64=$OTOOL64
-  # Extract the first word of "otool64", so it can be a program name with args.
-set dummy otool64; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_OTOOL64+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$ac_ct_OTOOL64"; then
-  ac_cv_prog_ac_ct_OTOOL64="$ac_ct_OTOOL64" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
-    ac_cv_prog_ac_ct_OTOOL64="otool64"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_OTOOL64=$ac_cv_prog_ac_ct_OTOOL64
-if test -n "$ac_ct_OTOOL64"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL64" >&5
-$as_echo "$ac_ct_OTOOL64" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-  if test "x$ac_ct_OTOOL64" = x; then
-    OTOOL64=":"
-  else
-    case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
-    OTOOL64=$ac_ct_OTOOL64
-  fi
-else
-  OTOOL64="$ac_cv_prog_OTOOL64"
-fi
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -single_module linker flag" >&5
-$as_echo_n "checking for -single_module linker flag... " >&6; }
-if test "${lt_cv_apple_cc_single_mod+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  lt_cv_apple_cc_single_mod=no
-      if test -z "${LT_MULTI_MODULE}"; then
-	# By default we will add the -single_module flag. You can override
-	# by either setting the environment variable LT_MULTI_MODULE
-	# non-empty at configure time, or by adding -multi_module to the
-	# link flags.
-	rm -rf libconftest.dylib*
-	echo "int foo(void){return 1;}" > conftest.c
-	echo "$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
--dynamiclib -Wl,-single_module conftest.c" >&5
-	$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
-	  -dynamiclib -Wl,-single_module conftest.c 2>conftest.err
-        _lt_result=$?
-	if test -f libconftest.dylib && test ! -s conftest.err && test $_lt_result = 0; then
-	  lt_cv_apple_cc_single_mod=yes
-	else
-	  cat conftest.err >&5
-	fi
-	rm -rf libconftest.dylib*
-	rm -f conftest.*
-      fi
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_apple_cc_single_mod" >&5
-$as_echo "$lt_cv_apple_cc_single_mod" >&6; }
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -exported_symbols_list linker flag" >&5
-$as_echo_n "checking for -exported_symbols_list linker flag... " >&6; }
-if test "${lt_cv_ld_exported_symbols_list+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  lt_cv_ld_exported_symbols_list=no
-      save_LDFLAGS=$LDFLAGS
-      echo "_main" > conftest.sym
-      LDFLAGS="$LDFLAGS -Wl,-exported_symbols_list,conftest.sym"
-      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-int
-main ()
-{
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  lt_cv_ld_exported_symbols_list=yes
-else
-  lt_cv_ld_exported_symbols_list=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-	LDFLAGS="$save_LDFLAGS"
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_exported_symbols_list" >&5
-$as_echo "$lt_cv_ld_exported_symbols_list" >&6; }
-    case $host_os in
-    rhapsody* | darwin1.[012])
-      _lt_dar_allow_undefined='${wl}-undefined ${wl}suppress' ;;
-    darwin1.*)
-      _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
-    darwin*) # darwin 5.x on
-      # if running on 10.5 or later, the deployment target defaults
-      # to the OS version, if on x86, and 10.4, the deployment
-      # target defaults to 10.4. Don't you love it?
-      case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
-	10.0,*86*-darwin8*|10.0,*-darwin[91]*)
-	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
-	10.[012]*)
-	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
-	10.*)
-	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
-      esac
-    ;;
-  esac
-    if test "$lt_cv_apple_cc_single_mod" = "yes"; then
-      _lt_dar_single_mod='$single_module'
-    fi
-    if test "$lt_cv_ld_exported_symbols_list" = "yes"; then
-      _lt_dar_export_syms=' ${wl}-exported_symbols_list,$output_objdir/${libname}-symbols.expsym'
-    else
-      _lt_dar_export_syms='~$NMEDIT -s $output_objdir/${libname}-symbols.expsym ${lib}'
-    fi
-    if test "$DSYMUTIL" != ":"; then
-      _lt_dsymutil='~$DSYMUTIL $lib || :'
-    else
-      _lt_dsymutil=
-    fi
-    ;;
-  esac
-
-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
-$as_echo_n "checking how to run the C preprocessor... " >&6; }
-# On Suns, sometimes $CPP names a directory.
-if test -n "$CPP" && test -d "$CPP"; then
-  CPP=
-fi
-if test -z "$CPP"; then
-  if test "${ac_cv_prog_CPP+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-      # Double quotes because CPP needs to be expanded
-    for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
-    do
-      ac_preproc_ok=false
-for ac_c_preproc_warn_flag in '' yes
-do
-  # Use a header file that comes with gcc, so configuring glibc
-  # with a fresh cross-compiler works.
-  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
-  # <limits.h> exists even on freestanding compilers.
-  # On the NeXT, cc -E runs the code through the compiler's parser,
-  # not just through cpp. "Syntax error" is here to catch this case.
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
-		     Syntax error
-_ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
-
-else
-  # Broken: fails on valid input.
-continue
-fi
-rm -f conftest.err conftest.i conftest.$ac_ext
-
-  # OK, works on sane cases.  Now check whether nonexistent headers
-  # can be detected and how.
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <ac_nonexistent.h>
-_ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
-  # Broken: success on invalid input.
-continue
-else
-  # Passes both tests.
-ac_preproc_ok=:
-break
-fi
-rm -f conftest.err conftest.i conftest.$ac_ext
-
-done
-# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
-rm -f conftest.i conftest.err conftest.$ac_ext
-if $ac_preproc_ok; then :
-  break
-fi
-
-    done
-    ac_cv_prog_CPP=$CPP
-
-fi
-  CPP=$ac_cv_prog_CPP
-else
-  ac_cv_prog_CPP=$CPP
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
-$as_echo "$CPP" >&6; }
-ac_preproc_ok=false
-for ac_c_preproc_warn_flag in '' yes
-do
-  # Use a header file that comes with gcc, so configuring glibc
-  # with a fresh cross-compiler works.
-  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
-  # <limits.h> exists even on freestanding compilers.
-  # On the NeXT, cc -E runs the code through the compiler's parser,
-  # not just through cpp. "Syntax error" is here to catch this case.
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
-		     Syntax error
-_ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
-
-else
-  # Broken: fails on valid input.
-continue
-fi
-rm -f conftest.err conftest.i conftest.$ac_ext
-
-  # OK, works on sane cases.  Now check whether nonexistent headers
-  # can be detected and how.
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <ac_nonexistent.h>
-_ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
-  # Broken: success on invalid input.
-continue
-else
-  # Passes both tests.
-ac_preproc_ok=:
-break
-fi
-rm -f conftest.err conftest.i conftest.$ac_ext
-
-done
-# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
-rm -f conftest.i conftest.err conftest.$ac_ext
-if $ac_preproc_ok; then :
-
-else
-  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
-See \`config.log' for more details" "$LINENO" 5 ; }
-fi
-
-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
-$as_echo_n "checking for ANSI C header files... " >&6; }
-if test "${ac_cv_header_stdc+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <stdlib.h>
-#include <stdarg.h>
-#include <string.h>
-#include <float.h>
-
-int
-main ()
-{
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_cv_header_stdc=yes
-else
-  ac_cv_header_stdc=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-
-if test $ac_cv_header_stdc = yes; then
-  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <string.h>
-
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "memchr" >/dev/null 2>&1; then :
-
-else
-  ac_cv_header_stdc=no
-fi
-rm -f conftest*
-
-fi
-
-if test $ac_cv_header_stdc = yes; then
-  # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <stdlib.h>
-
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "free" >/dev/null 2>&1; then :
-
-else
-  ac_cv_header_stdc=no
-fi
-rm -f conftest*
-
-fi
-
-if test $ac_cv_header_stdc = yes; then
-  # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
-  if test "$cross_compiling" = yes; then :
-  :
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <ctype.h>
-#include <stdlib.h>
-#if ((' ' & 0x0FF) == 0x020)
-# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
-# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
-#else
-# define ISLOWER(c) \
-		   (('a' <= (c) && (c) <= 'i') \
-		     || ('j' <= (c) && (c) <= 'r') \
-		     || ('s' <= (c) && (c) <= 'z'))
-# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
-#endif
-
-#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
-int
-main ()
-{
-  int i;
-  for (i = 0; i < 256; i++)
-    if (XOR (islower (i), ISLOWER (i))
-	|| toupper (i) != TOUPPER (i))
-      return 2;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
-
-else
-  ac_cv_header_stdc=no
-fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
-
-fi
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5
-$as_echo "$ac_cv_header_stdc" >&6; }
-if test $ac_cv_header_stdc = yes; then
-
-$as_echo "#define STDC_HEADERS 1" >>confdefs.h
-
-fi
-
-# On IRIX 5.3, sys/types and inttypes.h are conflicting.
-for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
-		  inttypes.h stdint.h unistd.h
-do :
-  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
-ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
-"
-if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
-  cat >>confdefs.h <<_ACEOF
-#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
-_ACEOF
-
-fi
-
-done
-
-
-for ac_header in dlfcn.h
-do :
-  ac_fn_c_check_header_compile "$LINENO" "dlfcn.h" "ac_cv_header_dlfcn_h" "$ac_includes_default
-"
-if test "x$ac_cv_header_dlfcn_h" = x""yes; then :
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_DLFCN_H 1
-_ACEOF
-
-fi
-
-done
-
-
-
-# Set options
-
-
-
-        enable_dlopen=no
-
-
-  enable_win32_dll=no
-
-
-            # Check whether --enable-shared was given.
-if test "${enable_shared+set}" = set; then :
-  enableval=$enable_shared; p=${PACKAGE-default}
-    case $enableval in
-    yes) enable_shared=yes ;;
-    no) enable_shared=no ;;
-    *)
-      enable_shared=no
-      # Look at the argument we got.  We use all the common list separators.
-      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
-      for pkg in $enableval; do
-	IFS="$lt_save_ifs"
-	if test "X$pkg" = "X$p"; then
-	  enable_shared=yes
-	fi
-      done
-      IFS="$lt_save_ifs"
-      ;;
-    esac
-else
-  enable_shared=yes
-fi
-
-
-
-
-
-
-
-
-
-  # Check whether --enable-static was given.
-if test "${enable_static+set}" = set; then :
-  enableval=$enable_static; p=${PACKAGE-default}
-    case $enableval in
-    yes) enable_static=yes ;;
-    no) enable_static=no ;;
-    *)
-     enable_static=no
-      # Look at the argument we got.  We use all the common list separators.
-      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
-      for pkg in $enableval; do
-	IFS="$lt_save_ifs"
-	if test "X$pkg" = "X$p"; then
-	  enable_static=yes
-	fi
-      done
-      IFS="$lt_save_ifs"
-      ;;
-    esac
-else
-  enable_static=yes
-fi
-
-
-
-
-
-
-
-
-
-
-# Check whether --with-pic was given.
-if test "${with_pic+set}" = set; then :
-  withval=$with_pic; pic_mode="$withval"
-else
-  pic_mode=default
-fi
-
-
-test -z "$pic_mode" && pic_mode=default
-
-
-
-
-
-
-
-  # Check whether --enable-fast-install was given.
-if test "${enable_fast_install+set}" = set; then :
-  enableval=$enable_fast_install; p=${PACKAGE-default}
-    case $enableval in
-    yes) enable_fast_install=yes ;;
-    no) enable_fast_install=no ;;
-    *)
-      enable_fast_install=no
-      # Look at the argument we got.  We use all the common list separators.
-      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
-      for pkg in $enableval; do
-	IFS="$lt_save_ifs"
-	if test "X$pkg" = "X$p"; then
-	  enable_fast_install=yes
-	fi
-      done
-      IFS="$lt_save_ifs"
-      ;;
-    esac
-else
-  enable_fast_install=yes
-fi
-
-
-
-
-
-
-
-
-
-
-
-# This can be used to rebuild libtool when needed
-LIBTOOL_DEPS="$ltmain"
-
-# Always use our own libtool.
-LIBTOOL='$(SHELL) $(top_builddir)/libtool'
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-test -z "$LN_S" && LN_S="ln -s"
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-if test -n "${ZSH_VERSION+set}" ; then
-   setopt NO_GLOB_SUBST
-fi
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for objdir" >&5
-$as_echo_n "checking for objdir... " >&6; }
-if test "${lt_cv_objdir+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  rm -f .libs 2>/dev/null
-mkdir .libs 2>/dev/null
-if test -d .libs; then
-  lt_cv_objdir=.libs
-else
-  # MS-DOS does not allow filenames that begin with a dot.
-  lt_cv_objdir=_libs
-fi
-rmdir .libs 2>/dev/null
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_objdir" >&5
-$as_echo "$lt_cv_objdir" >&6; }
-objdir=$lt_cv_objdir
-
-
-
-
-
-cat >>confdefs.h <<_ACEOF
-#define LT_OBJDIR "$lt_cv_objdir/"
-_ACEOF
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-case $host_os in
-aix3*)
-  # AIX sometimes has problems with the GCC collect2 program.  For some
-  # reason, if we set the COLLECT_NAMES environment variable, the problems
-  # vanish in a puff of smoke.
-  if test "X${COLLECT_NAMES+set}" != Xset; then
-    COLLECT_NAMES=
-    export COLLECT_NAMES
-  fi
-  ;;
-esac
-
-# Sed substitution that helps us do robust quoting.  It backslashifies
-# metacharacters that are still active within double-quoted strings.
-sed_quote_subst='s/\(["`$\\]\)/\\\1/g'
-
-# Same as above, but do not quote variable references.
-double_quote_subst='s/\(["`\\]\)/\\\1/g'
-
-# Sed substitution to delay expansion of an escaped shell variable in a
-# double_quote_subst'ed string.
-delay_variable_subst='s/\\\\\\\\\\\$/\\\\\\$/g'
-
-# Sed substitution to delay expansion of an escaped single quote.
-delay_single_quote_subst='s/'\''/'\'\\\\\\\'\''/g'
-
-# Sed substitution to avoid accidental globbing in evaled expressions
-no_glob_subst='s/\*/\\\*/g'
-
-# Global variables:
-ofile=libtool
-can_build_shared=yes
-
-# All known linkers require a `.a' archive for static linking (except MSVC,
-# which needs '.lib').
-libext=a
-
-with_gnu_ld="$lt_cv_prog_gnu_ld"
-
-old_CC="$CC"
-old_CFLAGS="$CFLAGS"
-
-# Set sane defaults for various variables
-test -z "$CC" && CC=cc
-test -z "$LTCC" && LTCC=$CC
-test -z "$LTCFLAGS" && LTCFLAGS=$CFLAGS
-test -z "$LD" && LD=ld
-test -z "$ac_objext" && ac_objext=o
-
-for cc_temp in $compiler""; do
-  case $cc_temp in
-    compile | *[\\/]compile | ccache | *[\\/]ccache ) ;;
-    distcc | *[\\/]distcc | purify | *[\\/]purify ) ;;
-    \-*) ;;
-    *) break;;
-  esac
-done
-cc_basename=`$ECHO "X$cc_temp" | $Xsed -e 's%.*/%%' -e "s%^$host_alias-%%"`
-
-
-# Only perform the check for file, if the check method requires it
-test -z "$MAGIC_CMD" && MAGIC_CMD=file
-case $deplibs_check_method in
-file_magic*)
-  if test "$file_magic_cmd" = '$MAGIC_CMD'; then
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ac_tool_prefix}file" >&5
-$as_echo_n "checking for ${ac_tool_prefix}file... " >&6; }
-if test "${lt_cv_path_MAGIC_CMD+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  case $MAGIC_CMD in
-[\\/*] |  ?:[\\/]*)
-  lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path.
-  ;;
-*)
-  lt_save_MAGIC_CMD="$MAGIC_CMD"
-  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
-  ac_dummy="/usr/bin$PATH_SEPARATOR$PATH"
-  for ac_dir in $ac_dummy; do
-    IFS="$lt_save_ifs"
-    test -z "$ac_dir" && ac_dir=.
-    if test -f $ac_dir/${ac_tool_prefix}file; then
-      lt_cv_path_MAGIC_CMD="$ac_dir/${ac_tool_prefix}file"
-      if test -n "$file_magic_test_file"; then
-	case $deplibs_check_method in
-	"file_magic "*)
-	  file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"`
-	  MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
-	  if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
-	    $EGREP "$file_magic_regex" > /dev/null; then
-	    :
-	  else
-	    cat <<_LT_EOF 1>&2
-
-*** Warning: the command libtool uses to detect shared libraries,
-*** $file_magic_cmd, produces output that libtool cannot recognize.
-*** The result is that libtool may fail to recognize shared libraries
-*** as such.  This will affect the creation of libtool libraries that
-*** depend on shared libraries, but programs linked with such libtool
-*** libraries will work regardless of this problem.  Nevertheless, you
-*** may want to report the problem to your system manager and/or to
-*** bug-libtool@gnu.org
-
-_LT_EOF
-	  fi ;;
-	esac
-      fi
-      break
-    fi
-  done
-  IFS="$lt_save_ifs"
-  MAGIC_CMD="$lt_save_MAGIC_CMD"
-  ;;
-esac
-fi
-
-MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
-if test -n "$MAGIC_CMD"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5
-$as_echo "$MAGIC_CMD" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-
-
-
-if test -z "$lt_cv_path_MAGIC_CMD"; then
-  if test -n "$ac_tool_prefix"; then
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for file" >&5
-$as_echo_n "checking for file... " >&6; }
-if test "${lt_cv_path_MAGIC_CMD+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  case $MAGIC_CMD in
-[\\/*] |  ?:[\\/]*)
-  lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path.
-  ;;
-*)
-  lt_save_MAGIC_CMD="$MAGIC_CMD"
-  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
-  ac_dummy="/usr/bin$PATH_SEPARATOR$PATH"
-  for ac_dir in $ac_dummy; do
-    IFS="$lt_save_ifs"
-    test -z "$ac_dir" && ac_dir=.
-    if test -f $ac_dir/file; then
-      lt_cv_path_MAGIC_CMD="$ac_dir/file"
-      if test -n "$file_magic_test_file"; then
-	case $deplibs_check_method in
-	"file_magic "*)
-	  file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"`
-	  MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
-	  if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
-	    $EGREP "$file_magic_regex" > /dev/null; then
-	    :
-	  else
-	    cat <<_LT_EOF 1>&2
-
-*** Warning: the command libtool uses to detect shared libraries,
-*** $file_magic_cmd, produces output that libtool cannot recognize.
-*** The result is that libtool may fail to recognize shared libraries
-*** as such.  This will affect the creation of libtool libraries that
-*** depend on shared libraries, but programs linked with such libtool
-*** libraries will work regardless of this problem.  Nevertheless, you
-*** may want to report the problem to your system manager and/or to
-*** bug-libtool@gnu.org
-
-_LT_EOF
-	  fi ;;
-	esac
-      fi
-      break
-    fi
-  done
-  IFS="$lt_save_ifs"
-  MAGIC_CMD="$lt_save_MAGIC_CMD"
-  ;;
-esac
-fi
-
-MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
-if test -n "$MAGIC_CMD"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5
-$as_echo "$MAGIC_CMD" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-  else
-    MAGIC_CMD=:
-  fi
-fi
-
-  fi
-  ;;
-esac
-
-# Use C for the default configuration in the libtool script
-
-lt_save_CC="$CC"
-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-
-
-# Source file extension for C test sources.
-ac_ext=c
-
-# Object file extension for compiled C test sources.
-objext=o
-objext=$objext
-
-# Code to be used in simple compile tests
-lt_simple_compile_test_code="int some_variable = 0;"
-
-# Code to be used in simple link tests
-lt_simple_link_test_code='int main(){return(0);}'
-
-
-
-
-
-
-
-# If no C compiler was specified, use CC.
-LTCC=${LTCC-"$CC"}
-
-# If no C compiler flags were specified, use CFLAGS.
-LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
-
-# Allow CC to be a program name with arguments.
-compiler=$CC
-
-# Save the default compiler, since it gets overwritten when the other
-# tags are being tested, and _LT_TAGVAR(compiler, []) is a NOP.
-compiler_DEFAULT=$CC
-
-# save warnings/boilerplate of simple test code
-ac_outfile=conftest.$ac_objext
-echo "$lt_simple_compile_test_code" >conftest.$ac_ext
-eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
-_lt_compiler_boilerplate=`cat conftest.err`
-$RM conftest*
-
-ac_outfile=conftest.$ac_objext
-echo "$lt_simple_link_test_code" >conftest.$ac_ext
-eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
-_lt_linker_boilerplate=`cat conftest.err`
-$RM -r conftest*
-
-
-if test -n "$compiler"; then
-
-lt_prog_compiler_no_builtin_flag=
-
-if test "$GCC" = yes; then
-  lt_prog_compiler_no_builtin_flag=' -fno-builtin'
-
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -fno-rtti -fno-exceptions" >&5
-$as_echo_n "checking if $compiler supports -fno-rtti -fno-exceptions... " >&6; }
-if test "${lt_cv_prog_compiler_rtti_exceptions+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  lt_cv_prog_compiler_rtti_exceptions=no
-   ac_outfile=conftest.$ac_objext
-   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
-   lt_compiler_flag="-fno-rtti -fno-exceptions"
-   # Insert the option either (1) after the last *FLAGS variable, or
-   # (2) before a word containing "conftest.", or (3) at the end.
-   # Note that $ac_compile itself does not contain backslashes and begins
-   # with a dollar sign (not a hyphen), so the echo should work correctly.
-   # The option is referenced via a variable to avoid confusing sed.
-   lt_compile=`echo "$ac_compile" | $SED \
-   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
-   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
-   -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:7231: $lt_compile\"" >&5)
-   (eval "$lt_compile" 2>conftest.err)
-   ac_status=$?
-   cat conftest.err >&5
-   echo "$as_me:7235: \$? = $ac_status" >&5
-   if (exit $ac_status) && test -s "$ac_outfile"; then
-     # The compiler can only warn and ignore the option if not recognized
-     # So say no if there are warnings other than the usual output.
-     $ECHO "X$_lt_compiler_boilerplate" | $Xsed -e '/^$/d' >conftest.exp
-     $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
-     if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
-       lt_cv_prog_compiler_rtti_exceptions=yes
-     fi
-   fi
-   $RM conftest*
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_rtti_exceptions" >&5
-$as_echo "$lt_cv_prog_compiler_rtti_exceptions" >&6; }
-
-if test x"$lt_cv_prog_compiler_rtti_exceptions" = xyes; then
-    lt_prog_compiler_no_builtin_flag="$lt_prog_compiler_no_builtin_flag -fno-rtti -fno-exceptions"
-else
-    :
-fi
-
-fi
-
-
-
-
-
-
-  lt_prog_compiler_wl=
-lt_prog_compiler_pic=
-lt_prog_compiler_static=
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $compiler option to produce PIC" >&5
-$as_echo_n "checking for $compiler option to produce PIC... " >&6; }
-
-  if test "$GCC" = yes; then
-    lt_prog_compiler_wl='-Wl,'
-    lt_prog_compiler_static='-static'
-
-    case $host_os in
-      aix*)
-      # All AIX code is PIC.
-      if test "$host_cpu" = ia64; then
-	# AIX 5 now supports IA64 processor
-	lt_prog_compiler_static='-Bstatic'
-      fi
-      ;;
-
-    amigaos*)
-      case $host_cpu in
-      powerpc)
-            # see comment about AmigaOS4 .so support
-            lt_prog_compiler_pic='-fPIC'
-        ;;
-      m68k)
-            # FIXME: we need at least 68020 code to build shared libraries, but
-            # adding the `-m68020' flag to GCC prevents building anything better,
-            # like `-m68040'.
-            lt_prog_compiler_pic='-m68020 -resident32 -malways-restore-a4'
-        ;;
-      esac
-      ;;
-
-    beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
-      # PIC is the default for these OSes.
-      ;;
-
-    mingw* | cygwin* | pw32* | os2* | cegcc*)
-      # This hack is so that the source file can tell whether it is being
-      # built for inclusion in a dll (and should export symbols for example).
-      # Although the cygwin gcc ignores -fPIC, still need this for old-style
-      # (--disable-auto-import) libraries
-      lt_prog_compiler_pic='-DDLL_EXPORT'
-      ;;
-
-    darwin* | rhapsody*)
-      # PIC is the default on this platform
-      # Common symbols not allowed in MH_DYLIB files
-      lt_prog_compiler_pic='-fno-common'
-      ;;
-
-    hpux*)
-      # PIC is the default for 64-bit PA HP-UX, but not for 32-bit
-      # PA HP-UX.  On IA64 HP-UX, PIC is the default but the pic flag
-      # sets the default TLS model and affects inlining.
-      case $host_cpu in
-      hppa*64*)
-	# +Z the default
-	;;
-      *)
-	lt_prog_compiler_pic='-fPIC'
-	;;
-      esac
-      ;;
-
-    interix[3-9]*)
-      # Interix 3.x gcc -fpic/-fPIC options generate broken code.
-      # Instead, we relocate shared libraries at runtime.
-      ;;
-
-    msdosdjgpp*)
-      # Just because we use GCC doesn't mean we suddenly get shared libraries
-      # on systems that don't support them.
-      lt_prog_compiler_can_build_shared=no
-      enable_shared=no
-      ;;
-
-    *nto* | *qnx*)
-      # QNX uses GNU C++, but need to define -shared option too, otherwise
-      # it will coredump.
-      lt_prog_compiler_pic='-fPIC -shared'
-      ;;
-
-    sysv4*MP*)
-      if test -d /usr/nec; then
-	lt_prog_compiler_pic=-Kconform_pic
-      fi
-      ;;
-
-    *)
-      lt_prog_compiler_pic='-fPIC'
-      ;;
-    esac
-  else
-    # PORTME Check for flag to pass linker flags through the system compiler.
-    case $host_os in
-    aix*)
-      lt_prog_compiler_wl='-Wl,'
-      if test "$host_cpu" = ia64; then
-	# AIX 5 now supports IA64 processor
-	lt_prog_compiler_static='-Bstatic'
-      else
-	lt_prog_compiler_static='-bnso -bI:/lib/syscalls.exp'
-      fi
-      ;;
-
-    mingw* | cygwin* | pw32* | os2* | cegcc*)
-      # This hack is so that the source file can tell whether it is being
-      # built for inclusion in a dll (and should export symbols for example).
-      lt_prog_compiler_pic='-DDLL_EXPORT'
-      ;;
-
-    hpux9* | hpux10* | hpux11*)
-      lt_prog_compiler_wl='-Wl,'
-      # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but
-      # not for PA HP-UX.
-      case $host_cpu in
-      hppa*64*|ia64*)
-	# +Z the default
-	;;
-      *)
-	lt_prog_compiler_pic='+Z'
-	;;
-      esac
-      # Is there a better lt_prog_compiler_static that works with the bundled CC?
-      lt_prog_compiler_static='${wl}-a ${wl}archive'
-      ;;
-
-    irix5* | irix6* | nonstopux*)
-      lt_prog_compiler_wl='-Wl,'
-      # PIC (with -KPIC) is the default.
-      lt_prog_compiler_static='-non_shared'
-      ;;
-
-    linux* | k*bsd*-gnu | kopensolaris*-gnu)
-      case $cc_basename in
-      # old Intel for x86_64 which still supported -KPIC.
-      ecc*)
-	lt_prog_compiler_wl='-Wl,'
-	lt_prog_compiler_pic='-KPIC'
-	lt_prog_compiler_static='-static'
-        ;;
-      # icc used to be incompatible with GCC.
-      # ICC 10 doesn't accept -KPIC any more.
-      icc* | ifort*)
-	lt_prog_compiler_wl='-Wl,'
-	lt_prog_compiler_pic='-fPIC'
-	lt_prog_compiler_static='-static'
-        ;;
-      # Lahey Fortran 8.1.
-      lf95*)
-	lt_prog_compiler_wl='-Wl,'
-	lt_prog_compiler_pic='--shared'
-	lt_prog_compiler_static='--static'
-	;;
-      pgcc* | pgf77* | pgf90* | pgf95*)
-        # Portland Group compilers (*not* the Pentium gcc compiler,
-	# which looks to be a dead project)
-	lt_prog_compiler_wl='-Wl,'
-	lt_prog_compiler_pic='-fpic'
-	lt_prog_compiler_static='-Bstatic'
-        ;;
-      ccc*)
-        lt_prog_compiler_wl='-Wl,'
-        # All Alpha code is PIC.
-        lt_prog_compiler_static='-non_shared'
-        ;;
-      xl*)
-	# IBM XL C 8.0/Fortran 10.1 on PPC
-	lt_prog_compiler_wl='-Wl,'
-	lt_prog_compiler_pic='-qpic'
-	lt_prog_compiler_static='-qstaticlink'
-	;;
-      *)
-	case `$CC -V 2>&1 | sed 5q` in
-	*Sun\ C*)
-	  # Sun C 5.9
-	  lt_prog_compiler_pic='-KPIC'
-	  lt_prog_compiler_static='-Bstatic'
-	  lt_prog_compiler_wl='-Wl,'
-	  ;;
-	*Sun\ F*)
-	  # Sun Fortran 8.3 passes all unrecognized flags to the linker
-	  lt_prog_compiler_pic='-KPIC'
-	  lt_prog_compiler_static='-Bstatic'
-	  lt_prog_compiler_wl=''
-	  ;;
-	esac
-	;;
-      esac
-      ;;
-
-    newsos6)
-      lt_prog_compiler_pic='-KPIC'
-      lt_prog_compiler_static='-Bstatic'
-      ;;
-
-    *nto* | *qnx*)
-      # QNX uses GNU C++, but need to define -shared option too, otherwise
-      # it will coredump.
-      lt_prog_compiler_pic='-fPIC -shared'
-      ;;
-
-    osf3* | osf4* | osf5*)
-      lt_prog_compiler_wl='-Wl,'
-      # All OSF/1 code is PIC.
-      lt_prog_compiler_static='-non_shared'
-      ;;
-
-    rdos*)
-      lt_prog_compiler_static='-non_shared'
-      ;;
-
-    solaris*)
-      lt_prog_compiler_pic='-KPIC'
-      lt_prog_compiler_static='-Bstatic'
-      case $cc_basename in
-      f77* | f90* | f95*)
-	lt_prog_compiler_wl='-Qoption ld ';;
-      *)
-	lt_prog_compiler_wl='-Wl,';;
-      esac
-      ;;
-
-    sunos4*)
-      lt_prog_compiler_wl='-Qoption ld '
-      lt_prog_compiler_pic='-PIC'
-      lt_prog_compiler_static='-Bstatic'
-      ;;
-
-    sysv4 | sysv4.2uw2* | sysv4.3*)
-      lt_prog_compiler_wl='-Wl,'
-      lt_prog_compiler_pic='-KPIC'
-      lt_prog_compiler_static='-Bstatic'
-      ;;
-
-    sysv4*MP*)
-      if test -d /usr/nec ;then
-	lt_prog_compiler_pic='-Kconform_pic'
-	lt_prog_compiler_static='-Bstatic'
-      fi
-      ;;
-
-    sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
-      lt_prog_compiler_wl='-Wl,'
-      lt_prog_compiler_pic='-KPIC'
-      lt_prog_compiler_static='-Bstatic'
-      ;;
-
-    unicos*)
-      lt_prog_compiler_wl='-Wl,'
-      lt_prog_compiler_can_build_shared=no
-      ;;
-
-    uts4*)
-      lt_prog_compiler_pic='-pic'
-      lt_prog_compiler_static='-Bstatic'
-      ;;
-
-    *)
-      lt_prog_compiler_can_build_shared=no
-      ;;
-    esac
-  fi
-
-case $host_os in
-  # For platforms which do not support PIC, -DPIC is meaningless:
-  *djgpp*)
-    lt_prog_compiler_pic=
-    ;;
-  *)
-    lt_prog_compiler_pic="$lt_prog_compiler_pic -DPIC"
-    ;;
-esac
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_prog_compiler_pic" >&5
-$as_echo "$lt_prog_compiler_pic" >&6; }
-
-
-
-
-
-
-#
-# Check to make sure the PIC flag actually works.
-#
-if test -n "$lt_prog_compiler_pic"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler PIC flag $lt_prog_compiler_pic works" >&5
-$as_echo_n "checking if $compiler PIC flag $lt_prog_compiler_pic works... " >&6; }
-if test "${lt_cv_prog_compiler_pic_works+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  lt_cv_prog_compiler_pic_works=no
-   ac_outfile=conftest.$ac_objext
-   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
-   lt_compiler_flag="$lt_prog_compiler_pic -DPIC"
-   # Insert the option either (1) after the last *FLAGS variable, or
-   # (2) before a word containing "conftest.", or (3) at the end.
-   # Note that $ac_compile itself does not contain backslashes and begins
-   # with a dollar sign (not a hyphen), so the echo should work correctly.
-   # The option is referenced via a variable to avoid confusing sed.
-   lt_compile=`echo "$ac_compile" | $SED \
-   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
-   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
-   -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:7570: $lt_compile\"" >&5)
-   (eval "$lt_compile" 2>conftest.err)
-   ac_status=$?
-   cat conftest.err >&5
-   echo "$as_me:7574: \$? = $ac_status" >&5
-   if (exit $ac_status) && test -s "$ac_outfile"; then
-     # The compiler can only warn and ignore the option if not recognized
-     # So say no if there are warnings other than the usual output.
-     $ECHO "X$_lt_compiler_boilerplate" | $Xsed -e '/^$/d' >conftest.exp
-     $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
-     if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
-       lt_cv_prog_compiler_pic_works=yes
-     fi
-   fi
-   $RM conftest*
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_works" >&5
-$as_echo "$lt_cv_prog_compiler_pic_works" >&6; }
-
-if test x"$lt_cv_prog_compiler_pic_works" = xyes; then
-    case $lt_prog_compiler_pic in
-     "" | " "*) ;;
-     *) lt_prog_compiler_pic=" $lt_prog_compiler_pic" ;;
-     esac
-else
-    lt_prog_compiler_pic=
-     lt_prog_compiler_can_build_shared=no
-fi
-
-fi
-
-
-
-
-
-
-#
-# Check to make sure the static flag actually works.
-#
-wl=$lt_prog_compiler_wl eval lt_tmp_static_flag=\"$lt_prog_compiler_static\"
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler static flag $lt_tmp_static_flag works" >&5
-$as_echo_n "checking if $compiler static flag $lt_tmp_static_flag works... " >&6; }
-if test "${lt_cv_prog_compiler_static_works+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  lt_cv_prog_compiler_static_works=no
-   save_LDFLAGS="$LDFLAGS"
-   LDFLAGS="$LDFLAGS $lt_tmp_static_flag"
-   echo "$lt_simple_link_test_code" > conftest.$ac_ext
-   if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
-     # The linker can only warn and ignore the option if not recognized
-     # So say no if there are warnings
-     if test -s conftest.err; then
-       # Append any errors to the config.log.
-       cat conftest.err 1>&5
-       $ECHO "X$_lt_linker_boilerplate" | $Xsed -e '/^$/d' > conftest.exp
-       $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
-       if diff conftest.exp conftest.er2 >/dev/null; then
-         lt_cv_prog_compiler_static_works=yes
-       fi
-     else
-       lt_cv_prog_compiler_static_works=yes
-     fi
-   fi
-   $RM -r conftest*
-   LDFLAGS="$save_LDFLAGS"
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_static_works" >&5
-$as_echo "$lt_cv_prog_compiler_static_works" >&6; }
-
-if test x"$lt_cv_prog_compiler_static_works" = xyes; then
-    :
-else
-    lt_prog_compiler_static=
-fi
-
-
-
-
-
-
-
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
-$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
-if test "${lt_cv_prog_compiler_c_o+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  lt_cv_prog_compiler_c_o=no
-   $RM -r conftest 2>/dev/null
-   mkdir conftest
-   cd conftest
-   mkdir out
-   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
-
-   lt_compiler_flag="-o out/conftest2.$ac_objext"
-   # Insert the option either (1) after the last *FLAGS variable, or
-   # (2) before a word containing "conftest.", or (3) at the end.
-   # Note that $ac_compile itself does not contain backslashes and begins
-   # with a dollar sign (not a hyphen), so the echo should work correctly.
-   lt_compile=`echo "$ac_compile" | $SED \
-   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
-   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
-   -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:7675: $lt_compile\"" >&5)
-   (eval "$lt_compile" 2>out/conftest.err)
-   ac_status=$?
-   cat out/conftest.err >&5
-   echo "$as_me:7679: \$? = $ac_status" >&5
-   if (exit $ac_status) && test -s out/conftest2.$ac_objext
-   then
-     # The compiler can only warn and ignore the option if not recognized
-     # So say no if there are warnings
-     $ECHO "X$_lt_compiler_boilerplate" | $Xsed -e '/^$/d' > out/conftest.exp
-     $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
-     if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
-       lt_cv_prog_compiler_c_o=yes
-     fi
-   fi
-   chmod u+w . 2>&5
-   $RM conftest*
-   # SGI C++ compiler will create directory out/ii_files/ for
-   # template instantiation
-   test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
-   $RM out/* && rmdir out
-   cd ..
-   $RM -r conftest
-   $RM conftest*
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o" >&5
-$as_echo "$lt_cv_prog_compiler_c_o" >&6; }
-
-
-
-
-
-
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
-$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
-if test "${lt_cv_prog_compiler_c_o+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  lt_cv_prog_compiler_c_o=no
-   $RM -r conftest 2>/dev/null
-   mkdir conftest
-   cd conftest
-   mkdir out
-   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
-
-   lt_compiler_flag="-o out/conftest2.$ac_objext"
-   # Insert the option either (1) after the last *FLAGS variable, or
-   # (2) before a word containing "conftest.", or (3) at the end.
-   # Note that $ac_compile itself does not contain backslashes and begins
-   # with a dollar sign (not a hyphen), so the echo should work correctly.
-   lt_compile=`echo "$ac_compile" | $SED \
-   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
-   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
-   -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:7730: $lt_compile\"" >&5)
-   (eval "$lt_compile" 2>out/conftest.err)
-   ac_status=$?
-   cat out/conftest.err >&5
-   echo "$as_me:7734: \$? = $ac_status" >&5
-   if (exit $ac_status) && test -s out/conftest2.$ac_objext
-   then
-     # The compiler can only warn and ignore the option if not recognized
-     # So say no if there are warnings
-     $ECHO "X$_lt_compiler_boilerplate" | $Xsed -e '/^$/d' > out/conftest.exp
-     $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
-     if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
-       lt_cv_prog_compiler_c_o=yes
-     fi
-   fi
-   chmod u+w . 2>&5
-   $RM conftest*
-   # SGI C++ compiler will create directory out/ii_files/ for
-   # template instantiation
-   test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
-   $RM out/* && rmdir out
-   cd ..
-   $RM -r conftest
-   $RM conftest*
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o" >&5
-$as_echo "$lt_cv_prog_compiler_c_o" >&6; }
-
-
-
-
-hard_links="nottested"
-if test "$lt_cv_prog_compiler_c_o" = no && test "$need_locks" != no; then
-  # do not overwrite the value of need_locks provided by the user
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if we can lock with hard links" >&5
-$as_echo_n "checking if we can lock with hard links... " >&6; }
-  hard_links=yes
-  $RM conftest*
-  ln conftest.a conftest.b 2>/dev/null && hard_links=no
-  touch conftest.a
-  ln conftest.a conftest.b 2>&5 || hard_links=no
-  ln conftest.a conftest.b 2>/dev/null && hard_links=no
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $hard_links" >&5
-$as_echo "$hard_links" >&6; }
-  if test "$hard_links" = no; then
-    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&5
-$as_echo "$as_me: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&2;}
-    need_locks=warn
-  fi
-else
-  need_locks=no
-fi
-
-
-
-
-
-
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5
-$as_echo_n "checking whether the $compiler linker ($LD) supports shared libraries... " >&6; }
-
-  runpath_var=
-  allow_undefined_flag=
-  always_export_symbols=no
-  archive_cmds=
-  archive_expsym_cmds=
-  compiler_needs_object=no
-  enable_shared_with_static_runtimes=no
-  export_dynamic_flag_spec=
-  export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
-  hardcode_automatic=no
-  hardcode_direct=no
-  hardcode_direct_absolute=no
-  hardcode_libdir_flag_spec=
-  hardcode_libdir_flag_spec_ld=
-  hardcode_libdir_separator=
-  hardcode_minus_L=no
-  hardcode_shlibpath_var=unsupported
-  inherit_rpath=no
-  link_all_deplibs=unknown
-  module_cmds=
-  module_expsym_cmds=
-  old_archive_from_new_cmds=
-  old_archive_from_expsyms_cmds=
-  thread_safe_flag_spec=
-  whole_archive_flag_spec=
-  # include_expsyms should be a list of space-separated symbols to be *always*
-  # included in the symbol list
-  include_expsyms=
-  # exclude_expsyms can be an extended regexp of symbols to exclude
-  # it will be wrapped by ` (' and `)$', so one must not match beginning or
-  # end of line.  Example: `a|bc|.*d.*' will exclude the symbols `a' and `bc',
-  # as well as any symbol that contains `d'.
-  exclude_expsyms='_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*'
-  # Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out
-  # platforms (ab)use it in PIC code, but their linkers get confused if
-  # the symbol is explicitly referenced.  Since portable code cannot
-  # rely on this symbol name, it's probably fine to never include it in
-  # preloaded symbol tables.
-  # Exclude shared library initialization/finalization symbols.
-  extract_expsyms_cmds=
-
-  case $host_os in
-  cygwin* | mingw* | pw32* | cegcc*)
-    # FIXME: the MSVC++ port hasn't been tested in a loooong time
-    # When not using gcc, we currently assume that we are using
-    # Microsoft Visual C++.
-    if test "$GCC" != yes; then
-      with_gnu_ld=no
-    fi
-    ;;
-  interix*)
-    # we just hope/assume this is gcc and not c89 (= MSVC++)
-    with_gnu_ld=yes
-    ;;
-  openbsd*)
-    with_gnu_ld=no
-    ;;
-  linux* | k*bsd*-gnu)
-    link_all_deplibs=no
-    ;;
-  esac
-
-  ld_shlibs=yes
-  if test "$with_gnu_ld" = yes; then
-    # If archive_cmds runs LD, not CC, wlarc should be empty
-    wlarc='${wl}'
-
-    # Set some defaults for GNU ld with shared library support. These
-    # are reset later if shared libraries are not supported. Putting them
-    # here allows them to be overridden if necessary.
-    runpath_var=LD_RUN_PATH
-    hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
-    export_dynamic_flag_spec='${wl}--export-dynamic'
-    # ancient GNU ld didn't support --whole-archive et. al.
-    if $LD --help 2>&1 | $GREP 'no-whole-archive' > /dev/null; then
-      whole_archive_flag_spec="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
-    else
-      whole_archive_flag_spec=
-    fi
-    supports_anon_versioning=no
-    case `$LD -v 2>&1` in
-      *GNU\ gold*) supports_anon_versioning=yes ;;
-      *\ [01].* | *\ 2.[0-9].* | *\ 2.10.*) ;; # catch versions < 2.11
-      *\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ...
-      *\ 2.11.92.0.12\ *) supports_anon_versioning=yes ;; # Mandrake 8.2 ...
-      *\ 2.11.*) ;; # other 2.11 versions
-      *) supports_anon_versioning=yes ;;
-    esac
-
-    # See if GNU ld supports shared libraries.
-    case $host_os in
-    aix[3-9]*)
-      # On AIX/PPC, the GNU linker is very broken
-      if test "$host_cpu" != ia64; then
-	ld_shlibs=no
-	cat <<_LT_EOF 1>&2
-
-*** Warning: the GNU linker, at least up to release 2.9.1, is reported
-*** to be unable to reliably create shared libraries on AIX.
-*** Therefore, libtool is disabling shared libraries support.  If you
-*** really care for shared libraries, you may want to modify your PATH
-*** so that a non-GNU linker is found, and then restart.
-
-_LT_EOF
-      fi
-      ;;
-
-    amigaos*)
-      case $host_cpu in
-      powerpc)
-            # see comment about AmigaOS4 .so support
-            archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
-            archive_expsym_cmds=''
-        ;;
-      m68k)
-            archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
-            hardcode_libdir_flag_spec='-L$libdir'
-            hardcode_minus_L=yes
-        ;;
-      esac
-      ;;
-
-    beos*)
-      if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
-	allow_undefined_flag=unsupported
-	# Joseph Beckenbach <jrb3@best.com> says some releases of gcc
-	# support --undefined.  This deserves some investigation.  FIXME
-	archive_cmds='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
-      else
-	ld_shlibs=no
-      fi
-      ;;
-
-    cygwin* | mingw* | pw32* | cegcc*)
-      # _LT_TAGVAR(hardcode_libdir_flag_spec, ) is actually meaningless,
-      # as there is no search path for DLLs.
-      hardcode_libdir_flag_spec='-L$libdir'
-      allow_undefined_flag=unsupported
-      always_export_symbols=no
-      enable_shared_with_static_runtimes=yes
-      export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1 DATA/'\'' | $SED -e '\''/^[AITW][ ]/s/.*[ ]//'\'' | sort | uniq > $export_symbols'
-
-      if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
-        archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
-	# If the export-symbols file already is a .def file (1st line
-	# is EXPORTS), use it as is; otherwise, prepend...
-	archive_expsym_cmds='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
-	  cp $export_symbols $output_objdir/$soname.def;
-	else
-	  echo EXPORTS > $output_objdir/$soname.def;
-	  cat $export_symbols >> $output_objdir/$soname.def;
-	fi~
-	$CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
-      else
-	ld_shlibs=no
-      fi
-      ;;
-
-    interix[3-9]*)
-      hardcode_direct=no
-      hardcode_shlibpath_var=no
-      hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
-      export_dynamic_flag_spec='${wl}-E'
-      # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
-      # Instead, shared libraries are loaded at an image base (0x10000000 by
-      # default) and relocated if they conflict, which is a slow very memory
-      # consuming and fragmenting process.  To avoid this, we pick a random,
-      # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
-      # time.  Moving up from 0x10000000 also allows more sbrk(2) space.
-      archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
-      archive_expsym_cmds='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
-      ;;
-
-    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
-      tmp_diet=no
-      if test "$host_os" = linux-dietlibc; then
-	case $cc_basename in
-	  diet\ *) tmp_diet=yes;;	# linux-dietlibc with static linking (!diet-dyn)
-	esac
-      fi
-      if $LD --help 2>&1 | $EGREP ': supported targets:.* elf' > /dev/null \
-	 && test "$tmp_diet" = no
-      then
-	tmp_addflag=
-	tmp_sharedflag='-shared'
-	case $cc_basename,$host_cpu in
-        pgcc*)				# Portland Group C compiler
-	  whole_archive_flag_spec='${wl}--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; $ECHO \"$new_convenience\"` ${wl}--no-whole-archive'
-	  tmp_addflag=' $pic_flag'
-	  ;;
-	pgf77* | pgf90* | pgf95*)	# Portland Group f77 and f90 compilers
-	  whole_archive_flag_spec='${wl}--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; $ECHO \"$new_convenience\"` ${wl}--no-whole-archive'
-	  tmp_addflag=' $pic_flag -Mnomain' ;;
-	ecc*,ia64* | icc*,ia64*)	# Intel C compiler on ia64
-	  tmp_addflag=' -i_dynamic' ;;
-	efc*,ia64* | ifort*,ia64*)	# Intel Fortran compiler on ia64
-	  tmp_addflag=' -i_dynamic -nofor_main' ;;
-	ifc* | ifort*)			# Intel Fortran compiler
-	  tmp_addflag=' -nofor_main' ;;
-	lf95*)				# Lahey Fortran 8.1
-	  whole_archive_flag_spec=
-	  tmp_sharedflag='--shared' ;;
-	xl[cC]*)			# IBM XL C 8.0 on PPC (deal with xlf below)
-	  tmp_sharedflag='-qmkshrobj'
-	  tmp_addflag= ;;
-	esac
-	case `$CC -V 2>&1 | sed 5q` in
-	*Sun\ C*)			# Sun C 5.9
-	  whole_archive_flag_spec='${wl}--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; $ECHO \"$new_convenience\"` ${wl}--no-whole-archive'
-	  compiler_needs_object=yes
-	  tmp_sharedflag='-G' ;;
-	*Sun\ F*)			# Sun Fortran 8.3
-	  tmp_sharedflag='-G' ;;
-	esac
-	archive_cmds='$CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
-
-        if test "x$supports_anon_versioning" = xyes; then
-          archive_expsym_cmds='echo "{ global:" > $output_objdir/$libname.ver~
-	    cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
-	    echo "local: *; };" >> $output_objdir/$libname.ver~
-	    $CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-version-script ${wl}$output_objdir/$libname.ver -o $lib'
-        fi
-
-	case $cc_basename in
-	xlf*)
-	  # IBM XL Fortran 10.1 on PPC cannot create shared libs itself
-	  whole_archive_flag_spec='--whole-archive$convenience --no-whole-archive'
-	  hardcode_libdir_flag_spec=
-	  hardcode_libdir_flag_spec_ld='-rpath $libdir'
-	  archive_cmds='$LD -shared $libobjs $deplibs $compiler_flags -soname $soname -o $lib'
-	  if test "x$supports_anon_versioning" = xyes; then
-	    archive_expsym_cmds='echo "{ global:" > $output_objdir/$libname.ver~
-	      cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
-	      echo "local: *; };" >> $output_objdir/$libname.ver~
-	      $LD -shared $libobjs $deplibs $compiler_flags -soname $soname -version-script $output_objdir/$libname.ver -o $lib'
-	  fi
-	  ;;
-	esac
-      else
-        ld_shlibs=no
-      fi
-      ;;
-
-    netbsd* | netbsdelf*-gnu)
-      if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
-	archive_cmds='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
-	wlarc=
-      else
-	archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
-	archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
-      fi
-      ;;
-
-    solaris*)
-      if $LD -v 2>&1 | $GREP 'BFD 2\.8' > /dev/null; then
-	ld_shlibs=no
-	cat <<_LT_EOF 1>&2
-
-*** Warning: The releases 2.8.* of the GNU linker cannot reliably
-*** create shared libraries on Solaris systems.  Therefore, libtool
-*** is disabling shared libraries support.  We urge you to upgrade GNU
-*** binutils to release 2.9.1 or newer.  Another option is to modify
-*** your PATH or compiler configuration so that the native linker is
-*** used, and then restart.
-
-_LT_EOF
-      elif $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
-	archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
-	archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
-      else
-	ld_shlibs=no
-      fi
-      ;;
-
-    sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*)
-      case `$LD -v 2>&1` in
-        *\ [01].* | *\ 2.[0-9].* | *\ 2.1[0-5].*)
-	ld_shlibs=no
-	cat <<_LT_EOF 1>&2
-
-*** Warning: Releases of the GNU linker prior to 2.16.91.0.3 can not
-*** reliably create shared libraries on SCO systems.  Therefore, libtool
-*** is disabling shared libraries support.  We urge you to upgrade GNU
-*** binutils to release 2.16.91.0.3 or newer.  Another option is to modify
-*** your PATH or compiler configuration so that the native linker is
-*** used, and then restart.
-
-_LT_EOF
-	;;
-	*)
-	  # For security reasons, it is highly recommended that you always
-	  # use absolute paths for naming shared libraries, and exclude the
-	  # DT_RUNPATH tag from executables and libraries.  But doing so
-	  # requires that you compile everything twice, which is a pain.
-	  if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
-	    hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
-	    archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
-	    archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
-	  else
-	    ld_shlibs=no
-	  fi
-	;;
-      esac
-      ;;
-
-    sunos4*)
-      archive_cmds='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags'
-      wlarc=
-      hardcode_direct=yes
-      hardcode_shlibpath_var=no
-      ;;
-
-    *)
-      if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
-	archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
-	archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
-      else
-	ld_shlibs=no
-      fi
-      ;;
-    esac
-
-    if test "$ld_shlibs" = no; then
-      runpath_var=
-      hardcode_libdir_flag_spec=
-      export_dynamic_flag_spec=
-      whole_archive_flag_spec=
-    fi
-  else
-    # PORTME fill in a description of your system's linker (not GNU ld)
-    case $host_os in
-    aix3*)
-      allow_undefined_flag=unsupported
-      always_export_symbols=yes
-      archive_expsym_cmds='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
-      # Note: this linker hardcodes the directories in LIBPATH if there
-      # are no directories specified by -L.
-      hardcode_minus_L=yes
-      if test "$GCC" = yes && test -z "$lt_prog_compiler_static"; then
-	# Neither direct hardcoding nor static linking is supported with a
-	# broken collect2.
-	hardcode_direct=unsupported
-      fi
-      ;;
-
-    aix[4-9]*)
-      if test "$host_cpu" = ia64; then
-	# On IA64, the linker does run time linking by default, so we don't
-	# have to do anything special.
-	aix_use_runtimelinking=no
-	exp_sym_flag='-Bexport'
-	no_entry_flag=""
-      else
-	# If we're using GNU nm, then we don't want the "-C" option.
-	# -C means demangle to AIX nm, but means don't demangle with GNU nm
-	if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
-	  export_symbols_cmds='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
-	else
-	  export_symbols_cmds='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
-	fi
-	aix_use_runtimelinking=no
-
-	# Test if we are trying to use run time linking or normal
-	# AIX style linking. If -brtl is somewhere in LDFLAGS, we
-	# need to do runtime linking.
-	case $host_os in aix4.[23]|aix4.[23].*|aix[5-9]*)
-	  for ld_flag in $LDFLAGS; do
-	  if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl"); then
-	    aix_use_runtimelinking=yes
-	    break
-	  fi
-	  done
-	  ;;
-	esac
-
-	exp_sym_flag='-bexport'
-	no_entry_flag='-bnoentry'
-      fi
-
-      # When large executables or shared objects are built, AIX ld can
-      # have problems creating the table of contents.  If linking a library
-      # or program results in "error TOC overflow" add -mminimal-toc to
-      # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
-      # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
-
-      archive_cmds=''
-      hardcode_direct=yes
-      hardcode_direct_absolute=yes
-      hardcode_libdir_separator=':'
-      link_all_deplibs=yes
-      file_list_spec='${wl}-f,'
-
-      if test "$GCC" = yes; then
-	case $host_os in aix4.[012]|aix4.[012].*)
-	# We only want to do this on AIX 4.2 and lower, the check
-	# below for broken collect2 doesn't work under 4.3+
-	  collect2name=`${CC} -print-prog-name=collect2`
-	  if test -f "$collect2name" &&
-	   strings "$collect2name" | $GREP resolve_lib_name >/dev/null
-	  then
-	  # We have reworked collect2
-	  :
-	  else
-	  # We have old collect2
-	  hardcode_direct=unsupported
-	  # It fails to find uninstalled libraries when the uninstalled
-	  # path is not listed in the libpath.  Setting hardcode_minus_L
-	  # to unsupported forces relinking
-	  hardcode_minus_L=yes
-	  hardcode_libdir_flag_spec='-L$libdir'
-	  hardcode_libdir_separator=
-	  fi
-	  ;;
-	esac
-	shared_flag='-shared'
-	if test "$aix_use_runtimelinking" = yes; then
-	  shared_flag="$shared_flag "'${wl}-G'
-	fi
-	link_all_deplibs=no
-      else
-	# not using gcc
-	if test "$host_cpu" = ia64; then
-	# VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
-	# chokes on -Wl,-G. The following line is correct:
-	  shared_flag='-G'
-	else
-	  if test "$aix_use_runtimelinking" = yes; then
-	    shared_flag='${wl}-G'
-	  else
-	    shared_flag='${wl}-bM:SRE'
-	  fi
-	fi
-      fi
-
-      export_dynamic_flag_spec='${wl}-bexpall'
-      # It seems that -bexpall does not export symbols beginning with
-      # underscore (_), so it is better to generate a list of symbols to export.
-      always_export_symbols=yes
-      if test "$aix_use_runtimelinking" = yes; then
-	# Warning - without using the other runtime loading flags (-brtl),
-	# -berok will link without error, but may produce a broken library.
-	allow_undefined_flag='-berok'
-        # Determine the default libpath from the value encoded in an
-        # empty executable.
-        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-int
-main ()
-{
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-
-lt_aix_libpath_sed='
-    /Import File Strings/,/^$/ {
-	/^0/ {
-	    s/^0  *\(.*\)$/\1/
-	    p
-	}
-    }'
-aix_libpath=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
-# Check for a 64-bit object if we didn't find anything.
-if test -z "$aix_libpath"; then
-  aix_libpath=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
-fi
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
-
-        hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:'"$aix_libpath"
-        archive_expsym_cmds='$CC -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then $ECHO "X${wl}${allow_undefined_flag}" | $Xsed; else :; fi` '"\${wl}$exp_sym_flag:\$export_symbols $shared_flag"
-      else
-	if test "$host_cpu" = ia64; then
-	  hardcode_libdir_flag_spec='${wl}-R $libdir:/usr/lib:/lib'
-	  allow_undefined_flag="-z nodefs"
-	  archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$exp_sym_flag:\$export_symbols"
-	else
-	 # Determine the default libpath from the value encoded in an
-	 # empty executable.
-	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-int
-main ()
-{
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-
-lt_aix_libpath_sed='
-    /Import File Strings/,/^$/ {
-	/^0/ {
-	    s/^0  *\(.*\)$/\1/
-	    p
-	}
-    }'
-aix_libpath=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
-# Check for a 64-bit object if we didn't find anything.
-if test -z "$aix_libpath"; then
-  aix_libpath=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
-fi
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
-
-	 hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:'"$aix_libpath"
-	  # Warning - without using the other run time loading flags,
-	  # -berok will link without error, but may produce a broken library.
-	  no_undefined_flag=' ${wl}-bernotok'
-	  allow_undefined_flag=' ${wl}-berok'
-	  # Exported symbols can be pulled into shared objects from archives
-	  whole_archive_flag_spec='$convenience'
-	  archive_cmds_need_lc=yes
-	  # This is similar to how AIX traditionally builds its shared libraries.
-	  archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs ${wl}-bnoentry $compiler_flags ${wl}-bE:$export_symbols${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname'
-	fi
-      fi
-      ;;
-
-    amigaos*)
-      case $host_cpu in
-      powerpc)
-            # see comment about AmigaOS4 .so support
-            archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
-            archive_expsym_cmds=''
-        ;;
-      m68k)
-            archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
-            hardcode_libdir_flag_spec='-L$libdir'
-            hardcode_minus_L=yes
-        ;;
-      esac
-      ;;
-
-    bsdi[45]*)
-      export_dynamic_flag_spec=-rdynamic
-      ;;
-
-    cygwin* | mingw* | pw32* | cegcc*)
-      # When not using gcc, we currently assume that we are using
-      # Microsoft Visual C++.
-      # hardcode_libdir_flag_spec is actually meaningless, as there is
-      # no search path for DLLs.
-      hardcode_libdir_flag_spec=' '
-      allow_undefined_flag=unsupported
-      # Tell ltmain to make .lib files, not .a files.
-      libext=lib
-      # Tell ltmain to make .dll files, not .so files.
-      shrext_cmds=".dll"
-      # FIXME: Setting linknames here is a bad hack.
-      archive_cmds='$CC -o $lib $libobjs $compiler_flags `$ECHO "X$deplibs" | $Xsed -e '\''s/ -lc$//'\''` -link -dll~linknames='
-      # The linker will automatically build a .lib file if we build a DLL.
-      old_archive_from_new_cmds='true'
-      # FIXME: Should let the user specify the lib program.
-      old_archive_cmds='lib -OUT:$oldlib$oldobjs$old_deplibs'
-      fix_srcfile_path='`cygpath -w "$srcfile"`'
-      enable_shared_with_static_runtimes=yes
-      ;;
-
-    darwin* | rhapsody*)
-
-
-  archive_cmds_need_lc=no
-  hardcode_direct=no
-  hardcode_automatic=yes
-  hardcode_shlibpath_var=unsupported
-  whole_archive_flag_spec=''
-  link_all_deplibs=yes
-  allow_undefined_flag="$_lt_dar_allow_undefined"
-  case $cc_basename in
-     ifort*) _lt_dar_can_shared=yes ;;
-     *) _lt_dar_can_shared=$GCC ;;
-  esac
-  if test "$_lt_dar_can_shared" = "yes"; then
-    output_verbose_link_cmd=echo
-    archive_cmds="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod${_lt_dsymutil}"
-    module_cmds="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dsymutil}"
-    archive_expsym_cmds="sed 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring ${_lt_dar_single_mod}${_lt_dar_export_syms}${_lt_dsymutil}"
-    module_expsym_cmds="sed -e 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dar_export_syms}${_lt_dsymutil}"
-
-  else
-  ld_shlibs=no
-  fi
-
-      ;;
-
-    dgux*)
-      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
-      hardcode_libdir_flag_spec='-L$libdir'
-      hardcode_shlibpath_var=no
-      ;;
-
-    freebsd1*)
-      ld_shlibs=no
-      ;;
-
-    # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
-    # support.  Future versions do this automatically, but an explicit c++rt0.o
-    # does not break anything, and helps significantly (at the cost of a little
-    # extra space).
-    freebsd2.2*)
-      archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
-      hardcode_libdir_flag_spec='-R$libdir'
-      hardcode_direct=yes
-      hardcode_shlibpath_var=no
-      ;;
-
-    # Unfortunately, older versions of FreeBSD 2 do not have this feature.
-    freebsd2*)
-      archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
-      hardcode_direct=yes
-      hardcode_minus_L=yes
-      hardcode_shlibpath_var=no
-      ;;
-
-    # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
-    freebsd* | dragonfly*)
-      archive_cmds='$CC -shared -o $lib $libobjs $deplibs $compiler_flags'
-      hardcode_libdir_flag_spec='-R$libdir'
-      hardcode_direct=yes
-      hardcode_shlibpath_var=no
-      ;;
-
-    hpux9*)
-      if test "$GCC" = yes; then
-	archive_cmds='$RM $output_objdir/$soname~$CC -shared -fPIC ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
-      else
-	archive_cmds='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
-      fi
-      hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
-      hardcode_libdir_separator=:
-      hardcode_direct=yes
-
-      # hardcode_minus_L: Not really in the search PATH,
-      # but as the default location of the library.
-      hardcode_minus_L=yes
-      export_dynamic_flag_spec='${wl}-E'
-      ;;
-
-    hpux10*)
-      if test "$GCC" = yes -a "$with_gnu_ld" = no; then
-	archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
-      else
-	archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
-      fi
-      if test "$with_gnu_ld" = no; then
-	hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
-	hardcode_libdir_flag_spec_ld='+b $libdir'
-	hardcode_libdir_separator=:
-	hardcode_direct=yes
-	hardcode_direct_absolute=yes
-	export_dynamic_flag_spec='${wl}-E'
-	# hardcode_minus_L: Not really in the search PATH,
-	# but as the default location of the library.
-	hardcode_minus_L=yes
-      fi
-      ;;
-
-    hpux11*)
-      if test "$GCC" = yes -a "$with_gnu_ld" = no; then
-	case $host_cpu in
-	hppa*64*)
-	  archive_cmds='$CC -shared ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
-	  ;;
-	ia64*)
-	  archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
-	  ;;
-	*)
-	  archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
-	  ;;
-	esac
-      else
-	case $host_cpu in
-	hppa*64*)
-	  archive_cmds='$CC -b ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
-	  ;;
-	ia64*)
-	  archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
-	  ;;
-	*)
-	  archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
-	  ;;
-	esac
-      fi
-      if test "$with_gnu_ld" = no; then
-	hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
-	hardcode_libdir_separator=:
-
-	case $host_cpu in
-	hppa*64*|ia64*)
-	  hardcode_direct=no
-	  hardcode_shlibpath_var=no
-	  ;;
-	*)
-	  hardcode_direct=yes
-	  hardcode_direct_absolute=yes
-	  export_dynamic_flag_spec='${wl}-E'
-
-	  # hardcode_minus_L: Not really in the search PATH,
-	  # but as the default location of the library.
-	  hardcode_minus_L=yes
-	  ;;
-	esac
-      fi
-      ;;
-
-    irix5* | irix6* | nonstopux*)
-      if test "$GCC" = yes; then
-	archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && $ECHO "X${wl}-set_version ${wl}$verstring" | $Xsed` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
-	# Try to use the -exported_symbol ld option, if it does not
-	# work, assume that -exports_file does not work either and
-	# implicitly export all symbols.
-        save_LDFLAGS="$LDFLAGS"
-        LDFLAGS="$LDFLAGS -shared ${wl}-exported_symbol ${wl}foo ${wl}-update_registry ${wl}/dev/null"
-        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-int foo(void) {}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && $ECHO "X${wl}-set_version ${wl}$verstring" | $Xsed` ${wl}-update_registry ${wl}${output_objdir}/so_locations ${wl}-exports_file ${wl}$export_symbols -o $lib'
-
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-        LDFLAGS="$save_LDFLAGS"
-      else
-	archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && $ECHO "X-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -o $lib'
-	archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && $ECHO "X-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -exports_file $export_symbols -o $lib'
-      fi
-      archive_cmds_need_lc='no'
-      hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
-      hardcode_libdir_separator=:
-      inherit_rpath=yes
-      link_all_deplibs=yes
-      ;;
-
-    netbsd* | netbsdelf*-gnu)
-      if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
-	archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'  # a.out
-      else
-	archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linker_flags'      # ELF
-      fi
-      hardcode_libdir_flag_spec='-R$libdir'
-      hardcode_direct=yes
-      hardcode_shlibpath_var=no
-      ;;
-
-    newsos6)
-      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
-      hardcode_direct=yes
-      hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
-      hardcode_libdir_separator=:
-      hardcode_shlibpath_var=no
-      ;;
-
-    *nto* | *qnx*)
-      ;;
-
-    openbsd*)
-      if test -f /usr/libexec/ld.so; then
-	hardcode_direct=yes
-	hardcode_shlibpath_var=no
-	hardcode_direct_absolute=yes
-	if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
-	  archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
-	  archive_expsym_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags ${wl}-retain-symbols-file,$export_symbols'
-	  hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
-	  export_dynamic_flag_spec='${wl}-E'
-	else
-	  case $host_os in
-	   openbsd[01].* | openbsd2.[0-7] | openbsd2.[0-7].*)
-	     archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
-	     hardcode_libdir_flag_spec='-R$libdir'
-	     ;;
-	   *)
-	     archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
-	     hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
-	     ;;
-	  esac
-	fi
-      else
-	ld_shlibs=no
-      fi
-      ;;
-
-    os2*)
-      hardcode_libdir_flag_spec='-L$libdir'
-      hardcode_minus_L=yes
-      allow_undefined_flag=unsupported
-      archive_cmds='$ECHO "LIBRARY $libname INITINSTANCE" > $output_objdir/$libname.def~$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~$ECHO DATA >> $output_objdir/$libname.def~$ECHO " SINGLE NONSHARED" >> $output_objdir/$libname.def~$ECHO EXPORTS >> $output_objdir/$libname.def~emxexp $libobjs >> $output_objdir/$libname.def~$CC -Zdll -Zcrtdll -o $lib $libobjs $deplibs $compiler_flags $output_objdir/$libname.def'
-      old_archive_from_new_cmds='emximp -o $output_objdir/$libname.a $output_objdir/$libname.def'
-      ;;
-
-    osf3*)
-      if test "$GCC" = yes; then
-	allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
-	archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && $ECHO "X${wl}-set_version ${wl}$verstring" | $Xsed` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
-      else
-	allow_undefined_flag=' -expect_unresolved \*'
-	archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && $ECHO "X-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -o $lib'
-      fi
-      archive_cmds_need_lc='no'
-      hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
-      hardcode_libdir_separator=:
-      ;;
-
-    osf4* | osf5*)	# as osf3* with the addition of -msym flag
-      if test "$GCC" = yes; then
-	allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
-	archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && $ECHO "X${wl}-set_version ${wl}$verstring" | $Xsed` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
-	hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
-      else
-	allow_undefined_flag=' -expect_unresolved \*'
-	archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && $ECHO "X-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -o $lib'
-	archive_expsym_cmds='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; printf "%s\\n" "-hidden">> $lib.exp~
-	$CC -shared${allow_undefined_flag} ${wl}-input ${wl}$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "X-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -o $lib~$RM $lib.exp'
-
-	# Both c and cxx compiler support -rpath directly
-	hardcode_libdir_flag_spec='-rpath $libdir'
-      fi
-      archive_cmds_need_lc='no'
-      hardcode_libdir_separator=:
-      ;;
-
-    solaris*)
-      no_undefined_flag=' -z defs'
-      if test "$GCC" = yes; then
-	wlarc='${wl}'
-	archive_cmds='$CC -shared ${wl}-z ${wl}text ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
-	archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
-	  $CC -shared ${wl}-z ${wl}text ${wl}-M ${wl}$lib.exp ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
-      else
-	case `$CC -V 2>&1` in
-	*"Compilers 5.0"*)
-	  wlarc=''
-	  archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
-	  archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
-	  $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp'
-	  ;;
-	*)
-	  wlarc='${wl}'
-	  archive_cmds='$CC -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $compiler_flags'
-	  archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
-	  $CC -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
-	  ;;
-	esac
-      fi
-      hardcode_libdir_flag_spec='-R$libdir'
-      hardcode_shlibpath_var=no
-      case $host_os in
-      solaris2.[0-5] | solaris2.[0-5].*) ;;
-      *)
-	# The compiler driver will combine and reorder linker options,
-	# but understands `-z linker_flag'.  GCC discards it without `$wl',
-	# but is careful enough not to reorder.
-	# Supported since Solaris 2.6 (maybe 2.5.1?)
-	if test "$GCC" = yes; then
-	  whole_archive_flag_spec='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
-	else
-	  whole_archive_flag_spec='-z allextract$convenience -z defaultextract'
-	fi
-	;;
-      esac
-      link_all_deplibs=yes
-      ;;
-
-    sunos4*)
-      if test "x$host_vendor" = xsequent; then
-	# Use $CC to link under sequent, because it throws in some extra .o
-	# files that make .init and .fini sections work.
-	archive_cmds='$CC -G ${wl}-h $soname -o $lib $libobjs $deplibs $compiler_flags'
-      else
-	archive_cmds='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
-      fi
-      hardcode_libdir_flag_spec='-L$libdir'
-      hardcode_direct=yes
-      hardcode_minus_L=yes
-      hardcode_shlibpath_var=no
-      ;;
-
-    sysv4)
-      case $host_vendor in
-	sni)
-	  archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
-	  hardcode_direct=yes # is this really true???
-	;;
-	siemens)
-	  ## LD is ld it makes a PLAMLIB
-	  ## CC just makes a GrossModule.
-	  archive_cmds='$LD -G -o $lib $libobjs $deplibs $linker_flags'
-	  reload_cmds='$CC -r -o $output$reload_objs'
-	  hardcode_direct=no
-        ;;
-	motorola)
-	  archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
-	  hardcode_direct=no #Motorola manual says yes, but my tests say they lie
-	;;
-      esac
-      runpath_var='LD_RUN_PATH'
-      hardcode_shlibpath_var=no
-      ;;
-
-    sysv4.3*)
-      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
-      hardcode_shlibpath_var=no
-      export_dynamic_flag_spec='-Bexport'
-      ;;
-
-    sysv4*MP*)
-      if test -d /usr/nec; then
-	archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
-	hardcode_shlibpath_var=no
-	runpath_var=LD_RUN_PATH
-	hardcode_runpath_var=yes
-	ld_shlibs=yes
-      fi
-      ;;
-
-    sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[01].[10]* | unixware7* | sco3.2v5.0.[024]*)
-      no_undefined_flag='${wl}-z,text'
-      archive_cmds_need_lc=no
-      hardcode_shlibpath_var=no
-      runpath_var='LD_RUN_PATH'
-
-      if test "$GCC" = yes; then
-	archive_cmds='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
-	archive_expsym_cmds='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
-      else
-	archive_cmds='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
-	archive_expsym_cmds='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
-      fi
-      ;;
-
-    sysv5* | sco3.2v5* | sco5v6*)
-      # Note: We can NOT use -z defs as we might desire, because we do not
-      # link with -lc, and that would cause any symbols used from libc to
-      # always be unresolved, which means just about no library would
-      # ever link correctly.  If we're not using GNU ld we use -z text
-      # though, which does catch some bad symbols but isn't as heavy-handed
-      # as -z defs.
-      no_undefined_flag='${wl}-z,text'
-      allow_undefined_flag='${wl}-z,nodefs'
-      archive_cmds_need_lc=no
-      hardcode_shlibpath_var=no
-      hardcode_libdir_flag_spec='${wl}-R,$libdir'
-      hardcode_libdir_separator=':'
-      link_all_deplibs=yes
-      export_dynamic_flag_spec='${wl}-Bexport'
-      runpath_var='LD_RUN_PATH'
-
-      if test "$GCC" = yes; then
-	archive_cmds='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
-	archive_expsym_cmds='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
-      else
-	archive_cmds='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
-	archive_expsym_cmds='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
-      fi
-      ;;
-
-    uts4*)
-      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
-      hardcode_libdir_flag_spec='-L$libdir'
-      hardcode_shlibpath_var=no
-      ;;
-
-    *)
-      ld_shlibs=no
-      ;;
-    esac
-
-    if test x$host_vendor = xsni; then
-      case $host in
-      sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
-	export_dynamic_flag_spec='${wl}-Blargedynsym'
-	;;
-      esac
-    fi
-  fi
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs" >&5
-$as_echo "$ld_shlibs" >&6; }
-test "$ld_shlibs" = no && can_build_shared=no
-
-with_gnu_ld=$with_gnu_ld
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-#
-# Do we need to explicitly link libc?
-#
-case "x$archive_cmds_need_lc" in
-x|xyes)
-  # Assume -lc should be added
-  archive_cmds_need_lc=yes
-
-  if test "$enable_shared" = yes && test "$GCC" = yes; then
-    case $archive_cmds in
-    *'~'*)
-      # FIXME: we may have to deal with multi-command sequences.
-      ;;
-    '$CC '*)
-      # Test whether the compiler implicitly links with -lc since on some
-      # systems, -lgcc has to come before -lc. If gcc already passes -lc
-      # to ld, don't add -lc before -lgcc.
-      { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -lc should be explicitly linked in" >&5
-$as_echo_n "checking whether -lc should be explicitly linked in... " >&6; }
-      $RM conftest*
-      echo "$lt_simple_compile_test_code" > conftest.$ac_ext
-
-      if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
-  (eval $ac_compile) 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; } 2>conftest.err; then
-        soname=conftest
-        lib=conftest
-        libobjs=conftest.$ac_objext
-        deplibs=
-        wl=$lt_prog_compiler_wl
-	pic_flag=$lt_prog_compiler_pic
-        compiler_flags=-v
-        linker_flags=-v
-        verstring=
-        output_objdir=.
-        libname=conftest
-        lt_save_allow_undefined_flag=$allow_undefined_flag
-        allow_undefined_flag=
-        if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$archive_cmds 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1\""; } >&5
-  (eval $archive_cmds 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1) 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }
-        then
-	  archive_cmds_need_lc=no
-        else
-	  archive_cmds_need_lc=yes
-        fi
-        allow_undefined_flag=$lt_save_allow_undefined_flag
-      else
-        cat conftest.err 1>&5
-      fi
-      $RM conftest*
-      { $as_echo "$as_me:${as_lineno-$LINENO}: result: $archive_cmds_need_lc" >&5
-$as_echo "$archive_cmds_need_lc" >&6; }
-      ;;
-    esac
-  fi
-  ;;
-esac
-
-
-
-
-
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-
-
-
-
-
-
-
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-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking dynamic linker characteristics" >&5
-$as_echo_n "checking dynamic linker characteristics... " >&6; }
-
-if test "$GCC" = yes; then
-  case $host_os in
-    darwin*) lt_awk_arg="/^libraries:/,/LR/" ;;
-    *) lt_awk_arg="/^libraries:/" ;;
-  esac
-  lt_search_path_spec=`$CC -print-search-dirs | awk $lt_awk_arg | $SED -e "s/^libraries://" -e "s,=/,/,g"`
-  if $ECHO "$lt_search_path_spec" | $GREP ';' >/dev/null ; then
-    # if the path contains ";" then we assume it to be the separator
-    # otherwise default to the standard path separator (i.e. ":") - it is
-    # assumed that no part of a normal pathname contains ";" but that should
-    # okay in the real world where ";" in dirpaths is itself problematic.
-    lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED -e 's/;/ /g'`
-  else
-    lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED  -e "s/$PATH_SEPARATOR/ /g"`
-  fi
-  # Ok, now we have the path, separated by spaces, we can step through it
-  # and add multilib dir if necessary.
-  lt_tmp_lt_search_path_spec=
-  lt_multi_os_dir=`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null`
-  for lt_sys_path in $lt_search_path_spec; do
-    if test -d "$lt_sys_path/$lt_multi_os_dir"; then
-      lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path/$lt_multi_os_dir"
-    else
-      test -d "$lt_sys_path" && \
-	lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path"
-    fi
-  done
-  lt_search_path_spec=`$ECHO $lt_tmp_lt_search_path_spec | awk '
-BEGIN {RS=" "; FS="/|\n";} {
-  lt_foo="";
-  lt_count=0;
-  for (lt_i = NF; lt_i > 0; lt_i--) {
-    if ($lt_i != "" && $lt_i != ".") {
-      if ($lt_i == "..") {
-        lt_count++;
-      } else {
-        if (lt_count == 0) {
-          lt_foo="/" $lt_i lt_foo;
-        } else {
-          lt_count--;
-        }
-      }
-    }
-  }
-  if (lt_foo != "") { lt_freq[lt_foo]++; }
-  if (lt_freq[lt_foo] == 1) { print lt_foo; }
-}'`
-  sys_lib_search_path_spec=`$ECHO $lt_search_path_spec`
-else
-  sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
-fi
-library_names_spec=
-libname_spec='lib$name'
-soname_spec=
-shrext_cmds=".so"
-postinstall_cmds=
-postuninstall_cmds=
-finish_cmds=
-finish_eval=
-shlibpath_var=
-shlibpath_overrides_runpath=unknown
-version_type=none
-dynamic_linker="$host_os ld.so"
-sys_lib_dlsearch_path_spec="/lib /usr/lib"
-need_lib_prefix=unknown
-hardcode_into_libs=no
-
-# when you set need_version to no, make sure it does not cause -set_version
-# flags to be left without arguments
-need_version=unknown
-
-case $host_os in
-aix3*)
-  version_type=linux
-  library_names_spec='${libname}${release}${shared_ext}$versuffix $libname.a'
-  shlibpath_var=LIBPATH
-
-  # AIX 3 has no versioning support, so we append a major version to the name.
-  soname_spec='${libname}${release}${shared_ext}$major'
-  ;;
-
-aix[4-9]*)
-  version_type=linux
-  need_lib_prefix=no
-  need_version=no
-  hardcode_into_libs=yes
-  if test "$host_cpu" = ia64; then
-    # AIX 5 supports IA64
-    library_names_spec='${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext}$versuffix $libname${shared_ext}'
-    shlibpath_var=LD_LIBRARY_PATH
-  else
-    # With GCC up to 2.95.x, collect2 would create an import file
-    # for dependence libraries.  The import file would start with
-    # the line `#! .'.  This would cause the generated library to
-    # depend on `.', always an invalid library.  This was fixed in
-    # development snapshots of GCC prior to 3.0.
-    case $host_os in
-      aix4 | aix4.[01] | aix4.[01].*)
-      if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
-	   echo ' yes '
-	   echo '#endif'; } | ${CC} -E - | $GREP yes > /dev/null; then
-	:
-      else
-	can_build_shared=no
-      fi
-      ;;
-    esac
-    # AIX (on Power*) has no versioning support, so currently we can not hardcode correct
-    # soname into executable. Probably we can add versioning support to
-    # collect2, so additional links can be useful in future.
-    if test "$aix_use_runtimelinking" = yes; then
-      # If using run time linking (on AIX 4.2 or later) use lib<name>.so
-      # instead of lib<name>.a to let people know that these are not
-      # typical AIX shared libraries.
-      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
-    else
-      # We preserve .a as extension for shared libraries through AIX4.2
-      # and later when we are not doing run time linking.
-      library_names_spec='${libname}${release}.a $libname.a'
-      soname_spec='${libname}${release}${shared_ext}$major'
-    fi
-    shlibpath_var=LIBPATH
-  fi
-  ;;
-
-amigaos*)
-  case $host_cpu in
-  powerpc)
-    # Since July 2007 AmigaOS4 officially supports .so libraries.
-    # When compiling the executable, add -use-dynld -Lsobjs: to the compileline.
-    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
-    ;;
-  m68k)
-    library_names_spec='$libname.ixlibrary $libname.a'
-    # Create ${libname}_ixlibrary.a entries in /sys/libs.
-    finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`$ECHO "X$lib" | $Xsed -e '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; test $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done'
-    ;;
-  esac
-  ;;
-
-beos*)
-  library_names_spec='${libname}${shared_ext}'
-  dynamic_linker="$host_os ld.so"
-  shlibpath_var=LIBRARY_PATH
-  ;;
-
-bsdi[45]*)
-  version_type=linux
-  need_version=no
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
-  soname_spec='${libname}${release}${shared_ext}$major'
-  finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
-  shlibpath_var=LD_LIBRARY_PATH
-  sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
-  sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
-  # the default ld.so.conf also contains /usr/contrib/lib and
-  # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
-  # libtool to hard-code these into programs
-  ;;
-
-cygwin* | mingw* | pw32* | cegcc*)
-  version_type=windows
-  shrext_cmds=".dll"
-  need_version=no
-  need_lib_prefix=no
-
-  case $GCC,$host_os in
-  yes,cygwin* | yes,mingw* | yes,pw32* | yes,cegcc*)
-    library_names_spec='$libname.dll.a'
-    # DLL is installed to $(libdir)/../bin by postinstall_cmds
-    postinstall_cmds='base_file=`basename \${file}`~
-      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i; echo \$dlname'\''`~
-      dldir=$destdir/`dirname \$dlpath`~
-      test -d \$dldir || mkdir -p \$dldir~
-      $install_prog $dir/$dlname \$dldir/$dlname~
-      chmod a+x \$dldir/$dlname~
-      if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
-        eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
-      fi'
-    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
-      dlpath=$dir/\$dldll~
-       $RM \$dlpath'
-    shlibpath_overrides_runpath=yes
-
-    case $host_os in
-    cygwin*)
-      # Cygwin DLLs use 'cyg' prefix rather than 'lib'
-      soname_spec='`echo ${libname} | sed -e 's/^lib/cyg/'``echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
-      sys_lib_search_path_spec="/usr/lib /lib/w32api /lib /usr/local/lib"
-      ;;
-    mingw* | cegcc*)
-      # MinGW DLLs use traditional 'lib' prefix
-      soname_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
-      sys_lib_search_path_spec=`$CC -print-search-dirs | $GREP "^libraries:" | $SED -e "s/^libraries://" -e "s,=/,/,g"`
-      if $ECHO "$sys_lib_search_path_spec" | $GREP ';[c-zC-Z]:/' >/dev/null; then
-        # It is most probably a Windows format PATH printed by
-        # mingw gcc, but we are running on Cygwin. Gcc prints its search
-        # path with ; separators, and with drive letters. We can handle the
-        # drive letters (cygwin fileutils understands them), so leave them,
-        # especially as we might pass files found there to a mingw objdump,
-        # which wouldn't understand a cygwinified path. Ahh.
-        sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
-      else
-        sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED  -e "s/$PATH_SEPARATOR/ /g"`
-      fi
-      ;;
-    pw32*)
-      # pw32 DLLs use 'pw' prefix rather than 'lib'
-      library_names_spec='`echo ${libname} | sed -e 's/^lib/pw/'``echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
-      ;;
-    esac
-    ;;
-
-  *)
-    library_names_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext} $libname.lib'
-    ;;
-  esac
-  dynamic_linker='Win32 ld.exe'
-  # FIXME: first we should search . and the directory the executable is in
-  shlibpath_var=PATH
-  ;;
-
-darwin* | rhapsody*)
-  dynamic_linker="$host_os dyld"
-  version_type=darwin
-  need_lib_prefix=no
-  need_version=no
-  library_names_spec='${libname}${release}${major}$shared_ext ${libname}$shared_ext'
-  soname_spec='${libname}${release}${major}$shared_ext'
-  shlibpath_overrides_runpath=yes
-  shlibpath_var=DYLD_LIBRARY_PATH
-  shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`'
-
-  sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/local/lib"
-  sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib'
-  ;;
-
-dgux*)
-  version_type=linux
-  need_lib_prefix=no
-  need_version=no
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname$shared_ext'
-  soname_spec='${libname}${release}${shared_ext}$major'
-  shlibpath_var=LD_LIBRARY_PATH
-  ;;
-
-freebsd1*)
-  dynamic_linker=no
-  ;;
-
-freebsd* | dragonfly*)
-  # DragonFly does not have aout.  When/if they implement a new
-  # versioning mechanism, adjust this.
-  if test -x /usr/bin/objformat; then
-    objformat=`/usr/bin/objformat`
-  else
-    case $host_os in
-    freebsd[123]*) objformat=aout ;;
-    *) objformat=elf ;;
-    esac
-  fi
-  version_type=freebsd-$objformat
-  case $version_type in
-    freebsd-elf*)
-      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
-      need_version=no
-      need_lib_prefix=no
-      ;;
-    freebsd-*)
-      library_names_spec='${libname}${release}${shared_ext}$versuffix $libname${shared_ext}$versuffix'
-      need_version=yes
-      ;;
-  esac
-  shlibpath_var=LD_LIBRARY_PATH
-  case $host_os in
-  freebsd2*)
-    shlibpath_overrides_runpath=yes
-    ;;
-  freebsd3.[01]* | freebsdelf3.[01]*)
-    shlibpath_overrides_runpath=yes
-    hardcode_into_libs=yes
-    ;;
-  freebsd3.[2-9]* | freebsdelf3.[2-9]* | \
-  freebsd4.[0-5] | freebsdelf4.[0-5] | freebsd4.1.1 | freebsdelf4.1.1)
-    shlibpath_overrides_runpath=no
-    hardcode_into_libs=yes
-    ;;
-  *) # from 4.6 on, and DragonFly
-    shlibpath_overrides_runpath=yes
-    hardcode_into_libs=yes
-    ;;
-  esac
-  ;;
-
-gnu*)
-  version_type=linux
-  need_lib_prefix=no
-  need_version=no
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}'
-  soname_spec='${libname}${release}${shared_ext}$major'
-  shlibpath_var=LD_LIBRARY_PATH
-  hardcode_into_libs=yes
-  ;;
-
-hpux9* | hpux10* | hpux11*)
-  # Give a soname corresponding to the major version so that dld.sl refuses to
-  # link against other versions.
-  version_type=sunos
-  need_lib_prefix=no
-  need_version=no
-  case $host_cpu in
-  ia64*)
-    shrext_cmds='.so'
-    hardcode_into_libs=yes
-    dynamic_linker="$host_os dld.so"
-    shlibpath_var=LD_LIBRARY_PATH
-    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
-    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
-    soname_spec='${libname}${release}${shared_ext}$major'
-    if test "X$HPUX_IA64_MODE" = X32; then
-      sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib"
-    else
-      sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64"
-    fi
-    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
-    ;;
-  hppa*64*)
-    shrext_cmds='.sl'
-    hardcode_into_libs=yes
-    dynamic_linker="$host_os dld.sl"
-    shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH
-    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
-    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
-    soname_spec='${libname}${release}${shared_ext}$major'
-    sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64"
-    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
-    ;;
-  *)
-    shrext_cmds='.sl'
-    dynamic_linker="$host_os dld.sl"
-    shlibpath_var=SHLIB_PATH
-    shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
-    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
-    soname_spec='${libname}${release}${shared_ext}$major'
-    ;;
-  esac
-  # HP-UX runs *really* slowly unless shared libraries are mode 555.
-  postinstall_cmds='chmod 555 $lib'
-  ;;
-
-interix[3-9]*)
-  version_type=linux
-  need_lib_prefix=no
-  need_version=no
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
-  soname_spec='${libname}${release}${shared_ext}$major'
-  dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)'
-  shlibpath_var=LD_LIBRARY_PATH
-  shlibpath_overrides_runpath=no
-  hardcode_into_libs=yes
-  ;;
-
-irix5* | irix6* | nonstopux*)
-  case $host_os in
-    nonstopux*) version_type=nonstopux ;;
-    *)
-	if test "$lt_cv_prog_gnu_ld" = yes; then
-		version_type=linux
-	else
-		version_type=irix
-	fi ;;
-  esac
-  need_lib_prefix=no
-  need_version=no
-  soname_spec='${libname}${release}${shared_ext}$major'
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext} $libname${shared_ext}'
-  case $host_os in
-  irix5* | nonstopux*)
-    libsuff= shlibsuff=
-    ;;
-  *)
-    case $LD in # libtool.m4 will add one of these switches to LD
-    *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ")
-      libsuff= shlibsuff= libmagic=32-bit;;
-    *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ")
-      libsuff=32 shlibsuff=N32 libmagic=N32;;
-    *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ")
-      libsuff=64 shlibsuff=64 libmagic=64-bit;;
-    *) libsuff= shlibsuff= libmagic=never-match;;
-    esac
-    ;;
-  esac
-  shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
-  shlibpath_overrides_runpath=no
-  sys_lib_search_path_spec="/usr/lib${libsuff} /lib${libsuff} /usr/local/lib${libsuff}"
-  sys_lib_dlsearch_path_spec="/usr/lib${libsuff} /lib${libsuff}"
-  hardcode_into_libs=yes
-  ;;
-
-# No shared lib support for Linux oldld, aout, or coff.
-linux*oldld* | linux*aout* | linux*coff*)
-  dynamic_linker=no
-  ;;
-
-# This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu)
-  version_type=linux
-  need_lib_prefix=no
-  need_version=no
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
-  soname_spec='${libname}${release}${shared_ext}$major'
-  finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
-  shlibpath_var=LD_LIBRARY_PATH
-  shlibpath_overrides_runpath=no
-  # Some binutils ld are patched to set DT_RUNPATH
-  save_LDFLAGS=$LDFLAGS
-  save_libdir=$libdir
-  eval "libdir=/foo; wl=\"$lt_prog_compiler_wl\"; \
-       LDFLAGS=\"\$LDFLAGS $hardcode_libdir_flag_spec\""
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-int
-main ()
-{
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  if  ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null; then :
-  shlibpath_overrides_runpath=yes
-fi
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-  LDFLAGS=$save_LDFLAGS
-  libdir=$save_libdir
-
-  # This implies no fast_install, which is unacceptable.
-  # Some rework will be needed to allow for fast_install
-  # before this can be enabled.
-  hardcode_into_libs=yes
-
-  # Append ld.so.conf contents to the search path
-  if test -f /etc/ld.so.conf; then
-    lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \$2)); skip = 1; } { if (!skip) print \$0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[	 ]*hwcap[	 ]/d;s/[:,	]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;/^$/d' | tr '\n' ' '`
-    sys_lib_dlsearch_path_spec="/lib /usr/lib $lt_ld_extra"
-  fi
-
-  # We used to test for /lib/ld.so.1 and disable shared libraries on
-  # powerpc, because MkLinux only supported shared libraries with the
-  # GNU dynamic linker.  Since this was broken with cross compilers,
-  # most powerpc-linux boxes support dynamic linking these days and
-  # people can always --disable-shared, the test was removed, and we
-  # assume the GNU/Linux dynamic linker is in use.
-  dynamic_linker='GNU/Linux ld.so'
-  ;;
-
-netbsdelf*-gnu)
-  version_type=linux
-  need_lib_prefix=no
-  need_version=no
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
-  soname_spec='${libname}${release}${shared_ext}$major'
-  shlibpath_var=LD_LIBRARY_PATH
-  shlibpath_overrides_runpath=no
-  hardcode_into_libs=yes
-  dynamic_linker='NetBSD ld.elf_so'
-  ;;
-
-netbsd*)
-  version_type=sunos
-  need_lib_prefix=no
-  need_version=no
-  if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
-    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
-    finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
-    dynamic_linker='NetBSD (a.out) ld.so'
-  else
-    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
-    soname_spec='${libname}${release}${shared_ext}$major'
-    dynamic_linker='NetBSD ld.elf_so'
-  fi
-  shlibpath_var=LD_LIBRARY_PATH
-  shlibpath_overrides_runpath=yes
-  hardcode_into_libs=yes
-  ;;
-
-newsos6)
-  version_type=linux
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
-  shlibpath_var=LD_LIBRARY_PATH
-  shlibpath_overrides_runpath=yes
-  ;;
-
-*nto* | *qnx*)
-  version_type=qnx
-  need_lib_prefix=no
-  need_version=no
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
-  soname_spec='${libname}${release}${shared_ext}$major'
-  shlibpath_var=LD_LIBRARY_PATH
-  shlibpath_overrides_runpath=no
-  hardcode_into_libs=yes
-  dynamic_linker='ldqnx.so'
-  ;;
-
-openbsd*)
-  version_type=sunos
-  sys_lib_dlsearch_path_spec="/usr/lib"
-  need_lib_prefix=no
-  # Some older versions of OpenBSD (3.3 at least) *do* need versioned libs.
-  case $host_os in
-    openbsd3.3 | openbsd3.3.*)	need_version=yes ;;
-    *)				need_version=no  ;;
-  esac
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
-  finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
-  shlibpath_var=LD_LIBRARY_PATH
-  if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
-    case $host_os in
-      openbsd2.[89] | openbsd2.[89].*)
-	shlibpath_overrides_runpath=no
-	;;
-      *)
-	shlibpath_overrides_runpath=yes
-	;;
-      esac
-  else
-    shlibpath_overrides_runpath=yes
-  fi
-  ;;
-
-os2*)
-  libname_spec='$name'
-  shrext_cmds=".dll"
-  need_lib_prefix=no
-  library_names_spec='$libname${shared_ext} $libname.a'
-  dynamic_linker='OS/2 ld.exe'
-  shlibpath_var=LIBPATH
-  ;;
-
-osf3* | osf4* | osf5*)
-  version_type=osf
-  need_lib_prefix=no
-  need_version=no
-  soname_spec='${libname}${release}${shared_ext}$major'
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
-  shlibpath_var=LD_LIBRARY_PATH
-  sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
-  sys_lib_dlsearch_path_spec="$sys_lib_search_path_spec"
-  ;;
-
-rdos*)
-  dynamic_linker=no
-  ;;
-
-solaris*)
-  version_type=linux
-  need_lib_prefix=no
-  need_version=no
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
-  soname_spec='${libname}${release}${shared_ext}$major'
-  shlibpath_var=LD_LIBRARY_PATH
-  shlibpath_overrides_runpath=yes
-  hardcode_into_libs=yes
-  # ldd complains unless libraries are executable
-  postinstall_cmds='chmod +x $lib'
-  ;;
-
-sunos4*)
-  version_type=sunos
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
-  finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
-  shlibpath_var=LD_LIBRARY_PATH
-  shlibpath_overrides_runpath=yes
-  if test "$with_gnu_ld" = yes; then
-    need_lib_prefix=no
-  fi
-  need_version=yes
-  ;;
-
-sysv4 | sysv4.3*)
-  version_type=linux
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
-  soname_spec='${libname}${release}${shared_ext}$major'
-  shlibpath_var=LD_LIBRARY_PATH
-  case $host_vendor in
-    sni)
-      shlibpath_overrides_runpath=no
-      need_lib_prefix=no
-      runpath_var=LD_RUN_PATH
-      ;;
-    siemens)
-      need_lib_prefix=no
-      ;;
-    motorola)
-      need_lib_prefix=no
-      need_version=no
-      shlibpath_overrides_runpath=no
-      sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib'
-      ;;
-  esac
-  ;;
-
-sysv4*MP*)
-  if test -d /usr/nec ;then
-    version_type=linux
-    library_names_spec='$libname${shared_ext}.$versuffix $libname${shared_ext}.$major $libname${shared_ext}'
-    soname_spec='$libname${shared_ext}.$major'
-    shlibpath_var=LD_LIBRARY_PATH
-  fi
-  ;;
-
-sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
-  version_type=freebsd-elf
-  need_lib_prefix=no
-  need_version=no
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
-  soname_spec='${libname}${release}${shared_ext}$major'
-  shlibpath_var=LD_LIBRARY_PATH
-  shlibpath_overrides_runpath=yes
-  hardcode_into_libs=yes
-  if test "$with_gnu_ld" = yes; then
-    sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib'
-  else
-    sys_lib_search_path_spec='/usr/ccs/lib /usr/lib'
-    case $host_os in
-      sco3.2v5*)
-        sys_lib_search_path_spec="$sys_lib_search_path_spec /lib"
-	;;
-    esac
-  fi
-  sys_lib_dlsearch_path_spec='/usr/lib'
-  ;;
-
-tpf*)
-  # TPF is a cross-target only.  Preferred cross-host = GNU/Linux.
-  version_type=linux
-  need_lib_prefix=no
-  need_version=no
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
-  shlibpath_var=LD_LIBRARY_PATH
-  shlibpath_overrides_runpath=no
-  hardcode_into_libs=yes
-  ;;
-
-uts4*)
-  version_type=linux
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
-  soname_spec='${libname}${release}${shared_ext}$major'
-  shlibpath_var=LD_LIBRARY_PATH
-  ;;
-
-*)
-  dynamic_linker=no
-  ;;
-esac
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $dynamic_linker" >&5
-$as_echo "$dynamic_linker" >&6; }
-test "$dynamic_linker" = no && can_build_shared=no
-
-variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
-if test "$GCC" = yes; then
-  variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
-fi
-
-if test "${lt_cv_sys_lib_search_path_spec+set}" = set; then
-  sys_lib_search_path_spec="$lt_cv_sys_lib_search_path_spec"
-fi
-if test "${lt_cv_sys_lib_dlsearch_path_spec+set}" = set; then
-  sys_lib_dlsearch_path_spec="$lt_cv_sys_lib_dlsearch_path_spec"
-fi
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to hardcode library paths into programs" >&5
-$as_echo_n "checking how to hardcode library paths into programs... " >&6; }
-hardcode_action=
-if test -n "$hardcode_libdir_flag_spec" ||
-   test -n "$runpath_var" ||
-   test "X$hardcode_automatic" = "Xyes" ; then
-
-  # We can hardcode non-existent directories.
-  if test "$hardcode_direct" != no &&
-     # If the only mechanism to avoid hardcoding is shlibpath_var, we
-     # have to relink, otherwise we might link with an installed library
-     # when we should be linking with a yet-to-be-installed one
-     ## test "$_LT_TAGVAR(hardcode_shlibpath_var, )" != no &&
-     test "$hardcode_minus_L" != no; then
-    # Linking always hardcodes the temporary library directory.
-    hardcode_action=relink
-  else
-    # We can link without hardcoding, and we can hardcode nonexisting dirs.
-    hardcode_action=immediate
-  fi
-else
-  # We cannot hardcode anything, or else we can only hardcode existing
-  # directories.
-  hardcode_action=unsupported
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $hardcode_action" >&5
-$as_echo "$hardcode_action" >&6; }
-
-if test "$hardcode_action" = relink ||
-   test "$inherit_rpath" = yes; then
-  # Fast installation is not supported
-  enable_fast_install=no
-elif test "$shlibpath_overrides_runpath" = yes ||
-     test "$enable_shared" = no; then
-  # Fast installation is not necessary
-  enable_fast_install=needless
-fi
-
-
-
-
-
-
-  if test "x$enable_dlopen" != xyes; then
-  enable_dlopen=unknown
-  enable_dlopen_self=unknown
-  enable_dlopen_self_static=unknown
-else
-  lt_cv_dlopen=no
-  lt_cv_dlopen_libs=
-
-  case $host_os in
-  beos*)
-    lt_cv_dlopen="load_add_on"
-    lt_cv_dlopen_libs=
-    lt_cv_dlopen_self=yes
-    ;;
-
-  mingw* | pw32* | cegcc*)
-    lt_cv_dlopen="LoadLibrary"
-    lt_cv_dlopen_libs=
-    ;;
-
-  cygwin*)
-    lt_cv_dlopen="dlopen"
-    lt_cv_dlopen_libs=
-    ;;
-
-  darwin*)
-  # if libdl is installed we need to link against it
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
-$as_echo_n "checking for dlopen in -ldl... " >&6; }
-if test "${ac_cv_lib_dl_dlopen+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
-LIBS="-ldl  $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char dlopen ();
-int
-main ()
-{
-return dlopen ();
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_lib_dl_dlopen=yes
-else
-  ac_cv_lib_dl_dlopen=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
-$as_echo "$ac_cv_lib_dl_dlopen" >&6; }
-if test "x$ac_cv_lib_dl_dlopen" = x""yes; then :
-  lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"
-else
-
-    lt_cv_dlopen="dyld"
-    lt_cv_dlopen_libs=
-    lt_cv_dlopen_self=yes
-
-fi
-
-    ;;
-
-  *)
-    ac_fn_c_check_func "$LINENO" "shl_load" "ac_cv_func_shl_load"
-if test "x$ac_cv_func_shl_load" = x""yes; then :
-  lt_cv_dlopen="shl_load"
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for shl_load in -ldld" >&5
-$as_echo_n "checking for shl_load in -ldld... " >&6; }
-if test "${ac_cv_lib_dld_shl_load+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
-LIBS="-ldld  $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char shl_load ();
-int
-main ()
-{
-return shl_load ();
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_lib_dld_shl_load=yes
-else
-  ac_cv_lib_dld_shl_load=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_shl_load" >&5
-$as_echo "$ac_cv_lib_dld_shl_load" >&6; }
-if test "x$ac_cv_lib_dld_shl_load" = x""yes; then :
-  lt_cv_dlopen="shl_load" lt_cv_dlopen_libs="-ldld"
-else
-  ac_fn_c_check_func "$LINENO" "dlopen" "ac_cv_func_dlopen"
-if test "x$ac_cv_func_dlopen" = x""yes; then :
-  lt_cv_dlopen="dlopen"
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
-$as_echo_n "checking for dlopen in -ldl... " >&6; }
-if test "${ac_cv_lib_dl_dlopen+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
-LIBS="-ldl  $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char dlopen ();
-int
-main ()
-{
-return dlopen ();
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_lib_dl_dlopen=yes
-else
-  ac_cv_lib_dl_dlopen=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
-$as_echo "$ac_cv_lib_dl_dlopen" >&6; }
-if test "x$ac_cv_lib_dl_dlopen" = x""yes; then :
-  lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -lsvld" >&5
-$as_echo_n "checking for dlopen in -lsvld... " >&6; }
-if test "${ac_cv_lib_svld_dlopen+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
-LIBS="-lsvld  $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char dlopen ();
-int
-main ()
-{
-return dlopen ();
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_lib_svld_dlopen=yes
-else
-  ac_cv_lib_svld_dlopen=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_svld_dlopen" >&5
-$as_echo "$ac_cv_lib_svld_dlopen" >&6; }
-if test "x$ac_cv_lib_svld_dlopen" = x""yes; then :
-  lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-lsvld"
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dld_link in -ldld" >&5
-$as_echo_n "checking for dld_link in -ldld... " >&6; }
-if test "${ac_cv_lib_dld_dld_link+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
-LIBS="-ldld  $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char dld_link ();
-int
-main ()
-{
-return dld_link ();
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_lib_dld_dld_link=yes
-else
-  ac_cv_lib_dld_dld_link=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_dld_link" >&5
-$as_echo "$ac_cv_lib_dld_dld_link" >&6; }
-if test "x$ac_cv_lib_dld_dld_link" = x""yes; then :
-  lt_cv_dlopen="dld_link" lt_cv_dlopen_libs="-ldld"
-fi
-
-
-fi
-
-
-fi
-
-
-fi
-
-
-fi
-
-
-fi
-
-    ;;
-  esac
-
-  if test "x$lt_cv_dlopen" != xno; then
-    enable_dlopen=yes
-  else
-    enable_dlopen=no
-  fi
-
-  case $lt_cv_dlopen in
-  dlopen)
-    save_CPPFLAGS="$CPPFLAGS"
-    test "x$ac_cv_header_dlfcn_h" = xyes && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H"
-
-    save_LDFLAGS="$LDFLAGS"
-    wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\"
-
-    save_LIBS="$LIBS"
-    LIBS="$lt_cv_dlopen_libs $LIBS"
-
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a program can dlopen itself" >&5
-$as_echo_n "checking whether a program can dlopen itself... " >&6; }
-if test "${lt_cv_dlopen_self+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  	  if test "$cross_compiling" = yes; then :
-  lt_cv_dlopen_self=cross
-else
-  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
-  lt_status=$lt_dlunknown
-  cat > conftest.$ac_ext <<_LT_EOF
-#line 10114 "configure"
-#include "confdefs.h"
-
-#if HAVE_DLFCN_H
-#include <dlfcn.h>
-#endif
-
-#include <stdio.h>
-
-#ifdef RTLD_GLOBAL
-#  define LT_DLGLOBAL		RTLD_GLOBAL
-#else
-#  ifdef DL_GLOBAL
-#    define LT_DLGLOBAL		DL_GLOBAL
-#  else
-#    define LT_DLGLOBAL		0
-#  endif
-#endif
-
-/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
-   find out it does not work in some platform. */
-#ifndef LT_DLLAZY_OR_NOW
-#  ifdef RTLD_LAZY
-#    define LT_DLLAZY_OR_NOW		RTLD_LAZY
-#  else
-#    ifdef DL_LAZY
-#      define LT_DLLAZY_OR_NOW		DL_LAZY
-#    else
-#      ifdef RTLD_NOW
-#        define LT_DLLAZY_OR_NOW	RTLD_NOW
-#      else
-#        ifdef DL_NOW
-#          define LT_DLLAZY_OR_NOW	DL_NOW
-#        else
-#          define LT_DLLAZY_OR_NOW	0
-#        endif
-#      endif
-#    endif
-#  endif
-#endif
-
-void fnord() { int i=42;}
-int main ()
-{
-  void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
-  int status = $lt_dlunknown;
-
-  if (self)
-    {
-      if (dlsym (self,"fnord"))       status = $lt_dlno_uscore;
-      else if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore;
-      /* dlclose (self); */
-    }
-  else
-    puts (dlerror ());
-
-  return status;
-}
-_LT_EOF
-  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
-  (eval $ac_link) 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; } && test -s conftest${ac_exeext} 2>/dev/null; then
-    (./conftest; exit; ) >&5 2>/dev/null
-    lt_status=$?
-    case x$lt_status in
-      x$lt_dlno_uscore) lt_cv_dlopen_self=yes ;;
-      x$lt_dlneed_uscore) lt_cv_dlopen_self=yes ;;
-      x$lt_dlunknown|x*) lt_cv_dlopen_self=no ;;
-    esac
-  else :
-    # compilation failed
-    lt_cv_dlopen_self=no
-  fi
-fi
-rm -fr conftest*
-
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self" >&5
-$as_echo "$lt_cv_dlopen_self" >&6; }
-
-    if test "x$lt_cv_dlopen_self" = xyes; then
-      wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\"
-      { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a statically linked program can dlopen itself" >&5
-$as_echo_n "checking whether a statically linked program can dlopen itself... " >&6; }
-if test "${lt_cv_dlopen_self_static+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  	  if test "$cross_compiling" = yes; then :
-  lt_cv_dlopen_self_static=cross
-else
-  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
-  lt_status=$lt_dlunknown
-  cat > conftest.$ac_ext <<_LT_EOF
-#line 10210 "configure"
-#include "confdefs.h"
-
-#if HAVE_DLFCN_H
-#include <dlfcn.h>
-#endif
-
-#include <stdio.h>
-
-#ifdef RTLD_GLOBAL
-#  define LT_DLGLOBAL		RTLD_GLOBAL
-#else
-#  ifdef DL_GLOBAL
-#    define LT_DLGLOBAL		DL_GLOBAL
-#  else
-#    define LT_DLGLOBAL		0
-#  endif
-#endif
-
-/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
-   find out it does not work in some platform. */
-#ifndef LT_DLLAZY_OR_NOW
-#  ifdef RTLD_LAZY
-#    define LT_DLLAZY_OR_NOW		RTLD_LAZY
-#  else
-#    ifdef DL_LAZY
-#      define LT_DLLAZY_OR_NOW		DL_LAZY
-#    else
-#      ifdef RTLD_NOW
-#        define LT_DLLAZY_OR_NOW	RTLD_NOW
-#      else
-#        ifdef DL_NOW
-#          define LT_DLLAZY_OR_NOW	DL_NOW
-#        else
-#          define LT_DLLAZY_OR_NOW	0
-#        endif
-#      endif
-#    endif
-#  endif
-#endif
-
-void fnord() { int i=42;}
-int main ()
-{
-  void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
-  int status = $lt_dlunknown;
-
-  if (self)
-    {
-      if (dlsym (self,"fnord"))       status = $lt_dlno_uscore;
-      else if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore;
-      /* dlclose (self); */
-    }
-  else
-    puts (dlerror ());
-
-  return status;
-}
-_LT_EOF
-  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
-  (eval $ac_link) 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; } && test -s conftest${ac_exeext} 2>/dev/null; then
-    (./conftest; exit; ) >&5 2>/dev/null
-    lt_status=$?
-    case x$lt_status in
-      x$lt_dlno_uscore) lt_cv_dlopen_self_static=yes ;;
-      x$lt_dlneed_uscore) lt_cv_dlopen_self_static=yes ;;
-      x$lt_dlunknown|x*) lt_cv_dlopen_self_static=no ;;
-    esac
-  else :
-    # compilation failed
-    lt_cv_dlopen_self_static=no
-  fi
-fi
-rm -fr conftest*
-
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self_static" >&5
-$as_echo "$lt_cv_dlopen_self_static" >&6; }
-    fi
-
-    CPPFLAGS="$save_CPPFLAGS"
-    LDFLAGS="$save_LDFLAGS"
-    LIBS="$save_LIBS"
-    ;;
-  esac
-
-  case $lt_cv_dlopen_self in
-  yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;;
-  *) enable_dlopen_self=unknown ;;
-  esac
-
-  case $lt_cv_dlopen_self_static in
-  yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;;
-  *) enable_dlopen_self_static=unknown ;;
-  esac
-fi
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-striplib=
-old_striplib=
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether stripping libraries is possible" >&5
-$as_echo_n "checking whether stripping libraries is possible... " >&6; }
-if test -n "$STRIP" && $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then
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-  test -z "$striplib" && striplib="$STRIP --strip-unneeded"
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
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-# FIXME - insert some real tests, host_os isn't really good enough
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-  darwin*)
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-      old_striplib="$STRIP -S"
-      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-    else
-      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-    fi
-    ;;
-  *)
-    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-    ;;
-  esac
-fi
-
-
-
-
-
-
-
-
-
-
-
-
-  # Report which library types will actually be built
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if libtool supports shared libraries" >&5
-$as_echo_n "checking if libtool supports shared libraries... " >&6; }
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $can_build_shared" >&5
-$as_echo "$can_build_shared" >&6; }
-
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build shared libraries" >&5
-$as_echo_n "checking whether to build shared libraries... " >&6; }
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-
-  # On AIX, shared libraries and static libraries use the same namespace, and
-  # are all built from PIC.
-  case $host_os in
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-    test "$enable_shared" = yes && enable_static=no
-    if test -n "$RANLIB"; then
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-      postinstall_cmds='$RANLIB $lib'
-    fi
-    ;;
-
-  aix[4-9]*)
-    if test "$host_cpu" != ia64 && test "$aix_use_runtimelinking" = no ; then
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-    fi
-    ;;
-  esac
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_shared" >&5
-$as_echo "$enable_shared" >&6; }
-
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build static libraries" >&5
-$as_echo_n "checking whether to build static libraries... " >&6; }
-  # Make sure either enable_shared or enable_static is yes.
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-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_static" >&5
-$as_echo "$enable_static" >&6; }
-
-
-
-
-fi
-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-
-CC="$lt_save_CC"
-
-
-
-
-
-
-
-
-
-
-
-
-
-        ac_config_commands="$ac_config_commands libtool"
-
-
-
-
-# Only expand once:
-
-
-
-if test "x$GCC" = xyes ; then
-  CFLAGS="-O3 $CFLAGS"
-fi
-
-
-for ac_header in sys/inotify.h sys/epoll.h sys/event.h port.h poll.h sys/select.h sys/eventfd.h sys/signalfd.h
-do :
-  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
-ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
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-  cat >>confdefs.h <<_ACEOF
-#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
-_ACEOF
-
-fi
-
-done
-
-
-for ac_func in inotify_init epoll_ctl kqueue port_create poll select eventfd signalfd
-do :
-  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
-ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
-if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
-  cat >>confdefs.h <<_ACEOF
-#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
-_ACEOF
-
-fi
-done
-
-
-for ac_func in clock_gettime
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-  cat >>confdefs.h <<_ACEOF
-#define HAVE_CLOCK_GETTIME 1
-_ACEOF
-
-else
-
-      if test $(uname) = Linux; then
-      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime syscall" >&5
-$as_echo_n "checking for clock_gettime syscall... " >&6; }
-      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <unistd.h>
-                       #include <sys/syscall.h>
-                       #include <time.h>
-int
-main ()
-{
-struct timespec ts; int status = syscall (SYS_clock_gettime, CLOCK_REALTIME, &ts)
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  ac_have_clock_syscall=1
-
-$as_echo "#define HAVE_CLOCK_SYSCALL 1" >>confdefs.h
-
-                      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-   fi
-   if test -z "$LIBEV_M4_AVOID_LIBRT" && test -z "$ac_have_clock_syscall"; then
-      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime in -lrt" >&5
-$as_echo_n "checking for clock_gettime in -lrt... " >&6; }
-if test "${ac_cv_lib_rt_clock_gettime+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
-LIBS="-lrt  $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char clock_gettime ();
-int
-main ()
-{
-return clock_gettime ();
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_lib_rt_clock_gettime=yes
-else
-  ac_cv_lib_rt_clock_gettime=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_rt_clock_gettime" >&5
-$as_echo "$ac_cv_lib_rt_clock_gettime" >&6; }
-if test "x$ac_cv_lib_rt_clock_gettime" = x""yes; then :
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_LIBRT 1
-_ACEOF
-
-  LIBS="-lrt $LIBS"
-
-fi
-
-      unset ac_cv_func_clock_gettime
-      for ac_func in clock_gettime
-do :
-  ac_fn_c_check_func "$LINENO" "clock_gettime" "ac_cv_func_clock_gettime"
-if test "x$ac_cv_func_clock_gettime" = x""yes; then :
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_CLOCK_GETTIME 1
-_ACEOF
-
-fi
-done
-
-   fi
-
-fi
-done
-
-
-for ac_func in nanosleep
-do :
-  ac_fn_c_check_func "$LINENO" "nanosleep" "ac_cv_func_nanosleep"
-if test "x$ac_cv_func_nanosleep" = x""yes; then :
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_NANOSLEEP 1
-_ACEOF
-
-else
-
-   if test -z "$LIBEV_M4_AVOID_LIBRT"; then
-      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for nanosleep in -lrt" >&5
-$as_echo_n "checking for nanosleep in -lrt... " >&6; }
-if test "${ac_cv_lib_rt_nanosleep+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
-LIBS="-lrt  $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
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-char nanosleep ();
-int
-main ()
-{
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-  ;
-  return 0;
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-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_lib_rt_nanosleep=yes
-else
-  ac_cv_lib_rt_nanosleep=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_rt_nanosleep" >&5
-$as_echo "$ac_cv_lib_rt_nanosleep" >&6; }
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-#define HAVE_LIBRT 1
-_ACEOF
-
-  LIBS="-lrt $LIBS"
-
-fi
-
-      unset ac_cv_func_nanosleep
-      for ac_func in nanosleep
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-if test "x$ac_cv_func_nanosleep" = x""yes; then :
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_NANOSLEEP 1
-_ACEOF
-
-fi
-done
-
-   fi
-
-fi
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-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ceil in -lm" >&5
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-  ac_check_lib_save_LIBS=$LIBS
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-/* Override any GCC internal prototype to avoid an error.
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-#ifdef __cplusplus
-extern "C"
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-char ceil ();
-int
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-{
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-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
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-LIBS=$ac_check_lib_save_LIBS
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_m_ceil" >&5
-$as_echo "$ac_cv_lib_m_ceil" >&6; }
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-_ACEOF
-
-  LIBS="-lm $LIBS"
-
-fi
-
-
-
-
-ac_config_files="$ac_config_files Makefile"
-
-cat >confcache <<\_ACEOF
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-_ACEOF
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-) |
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-fi
-rm -f confcache
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-
-DEFS=-DHAVE_CONFIG_H
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-ac_libobjs=
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-LIBOBJS=$ac_libobjs
-
-LTLIBOBJS=$ac_ltlibobjs
-
-
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-ac_write_fail=0
-ac_clean_files_save=$ac_clean_files
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5
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-#! $SHELL
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-# configure, is in config.log if it exists.
-
-debug=false
-ac_cs_recheck=false
-ac_cs_silent=false
-
-SHELL=\${CONFIG_SHELL-$SHELL}
-export SHELL
-_ASEOF
-cat >>$CONFIG_STATUS <<\_ASEOF || as_write_fail=1
-## -------------------- ##
-## M4sh Initialization. ##
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-# Be more Bourne compatible
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-  setopt NO_GLOB_SUBST
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-
-
-as_nl='
-'
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-# The user is always right.
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-
-# IFS
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-# Find who we are.  Look in the path if we contain no directory separator.
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-
-     ;;
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-extract_expsyms_cmds='`$ECHO "X$extract_expsyms_cmds" | $Xsed -e "$delay_single_quote_subst"`'
-archive_cmds_need_lc='`$ECHO "X$archive_cmds_need_lc" | $Xsed -e "$delay_single_quote_subst"`'
-enable_shared_with_static_runtimes='`$ECHO "X$enable_shared_with_static_runtimes" | $Xsed -e "$delay_single_quote_subst"`'
-export_dynamic_flag_spec='`$ECHO "X$export_dynamic_flag_spec" | $Xsed -e "$delay_single_quote_subst"`'
-whole_archive_flag_spec='`$ECHO "X$whole_archive_flag_spec" | $Xsed -e "$delay_single_quote_subst"`'
-compiler_needs_object='`$ECHO "X$compiler_needs_object" | $Xsed -e "$delay_single_quote_subst"`'
-old_archive_from_new_cmds='`$ECHO "X$old_archive_from_new_cmds" | $Xsed -e "$delay_single_quote_subst"`'
-old_archive_from_expsyms_cmds='`$ECHO "X$old_archive_from_expsyms_cmds" | $Xsed -e "$delay_single_quote_subst"`'
-archive_cmds='`$ECHO "X$archive_cmds" | $Xsed -e "$delay_single_quote_subst"`'
-archive_expsym_cmds='`$ECHO "X$archive_expsym_cmds" | $Xsed -e "$delay_single_quote_subst"`'
-module_cmds='`$ECHO "X$module_cmds" | $Xsed -e "$delay_single_quote_subst"`'
-module_expsym_cmds='`$ECHO "X$module_expsym_cmds" | $Xsed -e "$delay_single_quote_subst"`'
-with_gnu_ld='`$ECHO "X$with_gnu_ld" | $Xsed -e "$delay_single_quote_subst"`'
-allow_undefined_flag='`$ECHO "X$allow_undefined_flag" | $Xsed -e "$delay_single_quote_subst"`'
-no_undefined_flag='`$ECHO "X$no_undefined_flag" | $Xsed -e "$delay_single_quote_subst"`'
-hardcode_libdir_flag_spec='`$ECHO "X$hardcode_libdir_flag_spec" | $Xsed -e "$delay_single_quote_subst"`'
-hardcode_libdir_flag_spec_ld='`$ECHO "X$hardcode_libdir_flag_spec_ld" | $Xsed -e "$delay_single_quote_subst"`'
-hardcode_libdir_separator='`$ECHO "X$hardcode_libdir_separator" | $Xsed -e "$delay_single_quote_subst"`'
-hardcode_direct='`$ECHO "X$hardcode_direct" | $Xsed -e "$delay_single_quote_subst"`'
-hardcode_direct_absolute='`$ECHO "X$hardcode_direct_absolute" | $Xsed -e "$delay_single_quote_subst"`'
-hardcode_minus_L='`$ECHO "X$hardcode_minus_L" | $Xsed -e "$delay_single_quote_subst"`'
-hardcode_shlibpath_var='`$ECHO "X$hardcode_shlibpath_var" | $Xsed -e "$delay_single_quote_subst"`'
-hardcode_automatic='`$ECHO "X$hardcode_automatic" | $Xsed -e "$delay_single_quote_subst"`'
-inherit_rpath='`$ECHO "X$inherit_rpath" | $Xsed -e "$delay_single_quote_subst"`'
-link_all_deplibs='`$ECHO "X$link_all_deplibs" | $Xsed -e "$delay_single_quote_subst"`'
-fix_srcfile_path='`$ECHO "X$fix_srcfile_path" | $Xsed -e "$delay_single_quote_subst"`'
-always_export_symbols='`$ECHO "X$always_export_symbols" | $Xsed -e "$delay_single_quote_subst"`'
-export_symbols_cmds='`$ECHO "X$export_symbols_cmds" | $Xsed -e "$delay_single_quote_subst"`'
-exclude_expsyms='`$ECHO "X$exclude_expsyms" | $Xsed -e "$delay_single_quote_subst"`'
-include_expsyms='`$ECHO "X$include_expsyms" | $Xsed -e "$delay_single_quote_subst"`'
-prelink_cmds='`$ECHO "X$prelink_cmds" | $Xsed -e "$delay_single_quote_subst"`'
-file_list_spec='`$ECHO "X$file_list_spec" | $Xsed -e "$delay_single_quote_subst"`'
-variables_saved_for_relink='`$ECHO "X$variables_saved_for_relink" | $Xsed -e "$delay_single_quote_subst"`'
-need_lib_prefix='`$ECHO "X$need_lib_prefix" | $Xsed -e "$delay_single_quote_subst"`'
-need_version='`$ECHO "X$need_version" | $Xsed -e "$delay_single_quote_subst"`'
-version_type='`$ECHO "X$version_type" | $Xsed -e "$delay_single_quote_subst"`'
-runpath_var='`$ECHO "X$runpath_var" | $Xsed -e "$delay_single_quote_subst"`'
-shlibpath_var='`$ECHO "X$shlibpath_var" | $Xsed -e "$delay_single_quote_subst"`'
-shlibpath_overrides_runpath='`$ECHO "X$shlibpath_overrides_runpath" | $Xsed -e "$delay_single_quote_subst"`'
-libname_spec='`$ECHO "X$libname_spec" | $Xsed -e "$delay_single_quote_subst"`'
-library_names_spec='`$ECHO "X$library_names_spec" | $Xsed -e "$delay_single_quote_subst"`'
-soname_spec='`$ECHO "X$soname_spec" | $Xsed -e "$delay_single_quote_subst"`'
-postinstall_cmds='`$ECHO "X$postinstall_cmds" | $Xsed -e "$delay_single_quote_subst"`'
-postuninstall_cmds='`$ECHO "X$postuninstall_cmds" | $Xsed -e "$delay_single_quote_subst"`'
-finish_cmds='`$ECHO "X$finish_cmds" | $Xsed -e "$delay_single_quote_subst"`'
-finish_eval='`$ECHO "X$finish_eval" | $Xsed -e "$delay_single_quote_subst"`'
-hardcode_into_libs='`$ECHO "X$hardcode_into_libs" | $Xsed -e "$delay_single_quote_subst"`'
-sys_lib_search_path_spec='`$ECHO "X$sys_lib_search_path_spec" | $Xsed -e "$delay_single_quote_subst"`'
-sys_lib_dlsearch_path_spec='`$ECHO "X$sys_lib_dlsearch_path_spec" | $Xsed -e "$delay_single_quote_subst"`'
-hardcode_action='`$ECHO "X$hardcode_action" | $Xsed -e "$delay_single_quote_subst"`'
-enable_dlopen='`$ECHO "X$enable_dlopen" | $Xsed -e "$delay_single_quote_subst"`'
-enable_dlopen_self='`$ECHO "X$enable_dlopen_self" | $Xsed -e "$delay_single_quote_subst"`'
-enable_dlopen_self_static='`$ECHO "X$enable_dlopen_self_static" | $Xsed -e "$delay_single_quote_subst"`'
-old_striplib='`$ECHO "X$old_striplib" | $Xsed -e "$delay_single_quote_subst"`'
-striplib='`$ECHO "X$striplib" | $Xsed -e "$delay_single_quote_subst"`'
-
-LTCC='$LTCC'
-LTCFLAGS='$LTCFLAGS'
-compiler='$compiler_DEFAULT'
-
-# Quote evaled strings.
-for var in SED \
-GREP \
-EGREP \
-FGREP \
-LD \
-NM \
-LN_S \
-lt_SP2NL \
-lt_NL2SP \
-reload_flag \
-OBJDUMP \
-deplibs_check_method \
-file_magic_cmd \
-AR \
-AR_FLAGS \
-STRIP \
-RANLIB \
-CC \
-CFLAGS \
-compiler \
-lt_cv_sys_global_symbol_pipe \
-lt_cv_sys_global_symbol_to_cdecl \
-lt_cv_sys_global_symbol_to_c_name_address \
-lt_cv_sys_global_symbol_to_c_name_address_lib_prefix \
-SHELL \
-ECHO \
-lt_prog_compiler_no_builtin_flag \
-lt_prog_compiler_wl \
-lt_prog_compiler_pic \
-lt_prog_compiler_static \
-lt_cv_prog_compiler_c_o \
-need_locks \
-DSYMUTIL \
-NMEDIT \
-LIPO \
-OTOOL \
-OTOOL64 \
-shrext_cmds \
-export_dynamic_flag_spec \
-whole_archive_flag_spec \
-compiler_needs_object \
-with_gnu_ld \
-allow_undefined_flag \
-no_undefined_flag \
-hardcode_libdir_flag_spec \
-hardcode_libdir_flag_spec_ld \
-hardcode_libdir_separator \
-fix_srcfile_path \
-exclude_expsyms \
-include_expsyms \
-file_list_spec \
-variables_saved_for_relink \
-libname_spec \
-library_names_spec \
-soname_spec \
-finish_eval \
-old_striplib \
-striplib; do
-    case \`eval \\\\\$ECHO "X\\\\\$\$var"\` in
-    *[\\\\\\\`\\"\\\$]*)
-      eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"X\\\$\$var\\" | \\\$Xsed -e \\"\\\$sed_quote_subst\\"\\\`\\\\\\""
-      ;;
-    *)
-      eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
-      ;;
-    esac
-done
-
-# Double-quote double-evaled strings.
-for var in reload_cmds \
-old_postinstall_cmds \
-old_postuninstall_cmds \
-old_archive_cmds \
-extract_expsyms_cmds \
-old_archive_from_new_cmds \
-old_archive_from_expsyms_cmds \
-archive_cmds \
-archive_expsym_cmds \
-module_cmds \
-module_expsym_cmds \
-export_symbols_cmds \
-prelink_cmds \
-postinstall_cmds \
-postuninstall_cmds \
-finish_cmds \
-sys_lib_search_path_spec \
-sys_lib_dlsearch_path_spec; do
-    case \`eval \\\\\$ECHO "X\\\\\$\$var"\` in
-    *[\\\\\\\`\\"\\\$]*)
-      eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"X\\\$\$var\\" | \\\$Xsed -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\""
-      ;;
-    *)
-      eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
-      ;;
-    esac
-done
-
-# Fix-up fallback echo if it was mangled by the above quoting rules.
-case \$lt_ECHO in
-*'\\\$0 --fallback-echo"')  lt_ECHO=\`\$ECHO "X\$lt_ECHO" | \$Xsed -e 's/\\\\\\\\\\\\\\\$0 --fallback-echo"\$/\$0 --fallback-echo"/'\`
-  ;;
-esac
-
-ac_aux_dir='$ac_aux_dir'
-xsi_shell='$xsi_shell'
-lt_shell_append='$lt_shell_append'
-
-# See if we are running on zsh, and set the options which allow our
-# commands through without removal of \ escapes INIT.
-if test -n "\${ZSH_VERSION+set}" ; then
-   setopt NO_GLOB_SUBST
-fi
-
-
-    PACKAGE='$PACKAGE'
-    VERSION='$VERSION'
-    TIMESTAMP='$TIMESTAMP'
-    RM='$RM'
-    ofile='$ofile'
-
-
-
-
-_ACEOF
-
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
-
-# Handling of arguments.
-for ac_config_target in $ac_config_targets
-do
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-    "config.h") CONFIG_HEADERS="$CONFIG_HEADERS config.h" ;;
-    "depfiles") CONFIG_COMMANDS="$CONFIG_COMMANDS depfiles" ;;
-    "libtool") CONFIG_COMMANDS="$CONFIG_COMMANDS libtool" ;;
-    "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;;
-
-  *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5 ;;
-  esac
-done
-
-
-# If the user did not use the arguments to specify the items to instantiate,
-# then the envvar interface is used.  Set only those that are not.
-# We use the long form for the default assignment because of an extremely
-# bizarre bug on SunOS 4.1.3.
-if $ac_need_defaults; then
-  test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files
-  test "${CONFIG_HEADERS+set}" = set || CONFIG_HEADERS=$config_headers
-  test "${CONFIG_COMMANDS+set}" = set || CONFIG_COMMANDS=$config_commands
-fi
-
-# Have a temporary directory for convenience.  Make it in the build tree
-# simply because there is no reason against having it here, and in addition,
-# creating and moving files from /tmp can sometimes cause problems.
-# Hook for its removal unless debugging.
-# Note that there is a small window in which the directory will not be cleaned:
-# after its creation but before its name has been assigned to `$tmp'.
-$debug ||
-{
-  tmp=
-  trap 'exit_status=$?
-  { test -z "$tmp" || test ! -d "$tmp" || rm -fr "$tmp"; } && exit $exit_status
-' 0
-  trap 'as_fn_exit 1' 1 2 13 15
-}
-# Create a (secure) tmp directory for tmp files.
-
-{
-  tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` &&
-  test -n "$tmp" && test -d "$tmp"
-}  ||
-{
-  tmp=./conf$$-$RANDOM
-  (umask 077 && mkdir "$tmp")
-} || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5
-
-# Set up the scripts for CONFIG_FILES section.
-# No need to generate them if there are no CONFIG_FILES.
-# This happens for instance with `./config.status config.h'.
-if test -n "$CONFIG_FILES"; then
-
-
-ac_cr=`echo X | tr X '\015'`
-# On cygwin, bash can eat \r inside `` if the user requested igncr.
-# But we know of no other shell where ac_cr would be empty at this
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-  eval ac_cr=\$\'\\r\'
-fi
-ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' </dev/null 2>/dev/null`
-if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then
-  ac_cs_awk_cr='\\r'
-else
-  ac_cs_awk_cr=$ac_cr
-fi
-
-echo 'BEGIN {' >"$tmp/subs1.awk" &&
-_ACEOF
-
-
-{
-  echo "cat >conf$$subs.awk <<_ACEOF" &&
-  echo "$ac_subst_vars" | sed 's/.*/&!$&$ac_delim/' &&
-  echo "_ACEOF"
-} >conf$$subs.sh ||
-  as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
-ac_delim_num=`echo "$ac_subst_vars" | grep -c '^'`
-ac_delim='%!_!# '
-for ac_last_try in false false false false false :; do
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-    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
-
-  ac_delim_n=`sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | grep -c X`
-  if test $ac_delim_n = $ac_delim_num; then
-    break
-  elif $ac_last_try; then
-    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
-  else
-    ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
-  fi
-done
-rm -f conf$$subs.sh
-
-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
-cat >>"\$tmp/subs1.awk" <<\\_ACAWK &&
-_ACEOF
-sed -n '
-h
-s/^/S["/; s/!.*/"]=/
-p
-g
-s/^[^!]*!//
-:repl
-t repl
-s/'"$ac_delim"'$//
-t delim
-:nl
-h
-s/\(.\{148\}\)..*/\1/
-t more1
-s/["\\]/\\&/g; s/^/"/; s/$/\\n"\\/
-p
-n
-b repl
-:more1
-s/["\\]/\\&/g; s/^/"/; s/$/"\\/
-p
-g
-s/.\{148\}//
-t nl
-:delim
-h
-s/\(.\{148\}\)..*/\1/
-t more2
-s/["\\]/\\&/g; s/^/"/; s/$/"/
-p
-b
-:more2
-s/["\\]/\\&/g; s/^/"/; s/$/"\\/
-p
-g
-s/.\{148\}//
-t delim
-' <conf$$subs.awk | sed '
-/^[^""]/{
-  N
-  s/\n//
-}
-' >>$CONFIG_STATUS || ac_write_fail=1
-rm -f conf$$subs.awk
-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
-_ACAWK
-cat >>"\$tmp/subs1.awk" <<_ACAWK &&
-  for (key in S) S_is_set[key] = 1
-  FS = ""
-
-}
-{
-  line = $ 0
-  nfields = split(line, field, "@")
-  substed = 0
-  len = length(field[1])
-  for (i = 2; i < nfields; i++) {
-    key = field[i]
-    keylen = length(key)
-    if (S_is_set[key]) {
-      value = S[key]
-      line = substr(line, 1, len) "" value "" substr(line, len + keylen + 3)
-      len += length(value) + length(field[++i])
-      substed = 1
-    } else
-      len += 1 + keylen
-  }
-
-  print line
-}
-
-_ACAWK
-_ACEOF
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
-if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then
-  sed "s/$ac_cr\$//; s/$ac_cr/$ac_cs_awk_cr/g"
-else
-  cat
-fi < "$tmp/subs1.awk" > "$tmp/subs.awk" \
-  || as_fn_error $? "could not setup config files machinery" "$LINENO" 5
-_ACEOF
-
-# VPATH may cause trouble with some makes, so we remove sole $(srcdir),
-# ${srcdir} and @srcdir@ entries from VPATH if srcdir is ".", strip leading and
-# trailing colons and then remove the whole line if VPATH becomes empty
-# (actually we leave an empty line to preserve line numbers).
-if test "x$srcdir" = x.; then
-  ac_vpsub='/^[	 ]*VPATH[	 ]*=[	 ]*/{
-h
-s///
-s/^/:/
-s/[	 ]*$/:/
-s/:\$(srcdir):/:/g
-s/:\${srcdir}:/:/g
-s/:@srcdir@:/:/g
-s/^:*//
-s/:*$//
-x
-s/\(=[	 ]*\).*/\1/
-G
-s/\n//
-s/^[^=]*=[	 ]*$//
-}'
-fi
-
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
-fi # test -n "$CONFIG_FILES"
-
-# Set up the scripts for CONFIG_HEADERS section.
-# No need to generate them if there are no CONFIG_HEADERS.
-# This happens for instance with `./config.status Makefile'.
-if test -n "$CONFIG_HEADERS"; then
-cat >"$tmp/defines.awk" <<\_ACAWK ||
-BEGIN {
-_ACEOF
-
-# Transform confdefs.h into an awk script `defines.awk', embedded as
-# here-document in config.status, that substitutes the proper values into
-# config.h.in to produce config.h.
-
-# Create a delimiter string that does not exist in confdefs.h, to ease
-# handling of long lines.
-ac_delim='%!_!# '
-for ac_last_try in false false :; do
-  ac_t=`sed -n "/$ac_delim/p" confdefs.h`
-  if test -z "$ac_t"; then
-    break
-  elif $ac_last_try; then
-    as_fn_error $? "could not make $CONFIG_HEADERS" "$LINENO" 5
-  else
-    ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
-  fi
-done
-
-# For the awk script, D is an array of macro values keyed by name,
-# likewise P contains macro parameters if any.  Preserve backslash
-# newline sequences.
-
-ac_word_re=[_$as_cr_Letters][_$as_cr_alnum]*
-sed -n '
-s/.\{148\}/&'"$ac_delim"'/g
-t rset
-:rset
-s/^[	 ]*#[	 ]*define[	 ][	 ]*/ /
-t def
-d
-:def
-s/\\$//
-t bsnl
-s/["\\]/\\&/g
-s/^ \('"$ac_word_re"'\)\(([^()]*)\)[	 ]*\(.*\)/P["\1"]="\2"\
-D["\1"]=" \3"/p
-s/^ \('"$ac_word_re"'\)[	 ]*\(.*\)/D["\1"]=" \2"/p
-d
-:bsnl
-s/["\\]/\\&/g
-s/^ \('"$ac_word_re"'\)\(([^()]*)\)[	 ]*\(.*\)/P["\1"]="\2"\
-D["\1"]=" \3\\\\\\n"\\/p
-t cont
-s/^ \('"$ac_word_re"'\)[	 ]*\(.*\)/D["\1"]=" \2\\\\\\n"\\/p
-t cont
-d
-:cont
-n
-s/.\{148\}/&'"$ac_delim"'/g
-t clear
-:clear
-s/\\$//
-t bsnlc
-s/["\\]/\\&/g; s/^/"/; s/$/"/p
-d
-:bsnlc
-s/["\\]/\\&/g; s/^/"/; s/$/\\\\\\n"\\/p
-b cont
-' <confdefs.h | sed '
-s/'"$ac_delim"'/"\\\
-"/g' >>$CONFIG_STATUS || ac_write_fail=1
-
-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
-  for (key in D) D_is_set[key] = 1
-  FS = ""
-}
-/^[\t ]*#[\t ]*(define|undef)[\t ]+$ac_word_re([\t (]|\$)/ {
-  line = \$ 0
-  split(line, arg, " ")
-  if (arg[1] == "#") {
-    defundef = arg[2]
-    mac1 = arg[3]
-  } else {
-    defundef = substr(arg[1], 2)
-    mac1 = arg[2]
-  }
-  split(mac1, mac2, "(") #)
-  macro = mac2[1]
-  prefix = substr(line, 1, index(line, defundef) - 1)
-  if (D_is_set[macro]) {
-    # Preserve the white space surrounding the "#".
-    print prefix "define", macro P[macro] D[macro]
-    next
-  } else {
-    # Replace #undef with comments.  This is necessary, for example,
-    # in the case of _POSIX_SOURCE, which is predefined and required
-    # on some systems where configure will not decide to define it.
-    if (defundef == "undef") {
-      print "/*", prefix defundef, macro, "*/"
-      next
-    }
-  }
-}
-{ print }
-_ACAWK
-_ACEOF
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
-  as_fn_error $? "could not setup config headers machinery" "$LINENO" 5
-fi # test -n "$CONFIG_HEADERS"
-
-
-eval set X "  :F $CONFIG_FILES  :H $CONFIG_HEADERS    :C $CONFIG_COMMANDS"
-shift
-for ac_tag
-do
-  case $ac_tag in
-  :[FHLC]) ac_mode=$ac_tag; continue;;
-  esac
-  case $ac_mode$ac_tag in
-  :[FHL]*:*);;
-  :L* | :C*:*) as_fn_error $? "invalid tag \`$ac_tag'" "$LINENO" 5 ;;
-  :[FH]-) ac_tag=-:-;;
-  :[FH]*) ac_tag=$ac_tag:$ac_tag.in;;
-  esac
-  ac_save_IFS=$IFS
-  IFS=:
-  set x $ac_tag
-  IFS=$ac_save_IFS
-  shift
-  ac_file=$1
-  shift
-
-  case $ac_mode in
-  :L) ac_source=$1;;
-  :[FH])
-    ac_file_inputs=
-    for ac_f
-    do
-      case $ac_f in
-      -) ac_f="$tmp/stdin";;
-      *) # Look for the file first in the build tree, then in the source tree
-	 # (if the path is not absolute).  The absolute path cannot be DOS-style,
-	 # because $ac_f cannot contain `:'.
-	 test -f "$ac_f" ||
-	   case $ac_f in
-	   [\\/$]*) false;;
-	   *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";;
-	   esac ||
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-LD=$lt_LD
-
-# Commands used to build an old-style archive.
-old_archive_cmds=$lt_old_archive_cmds
-
-# A language specific compiler.
-CC=$lt_compiler
-
-# Is the compiler the GNU compiler?
-with_gcc=$GCC
-
-# Compiler flag to turn off builtin functions.
-no_builtin_flag=$lt_lt_prog_compiler_no_builtin_flag
-
-# How to pass a linker flag through the compiler.
-wl=$lt_lt_prog_compiler_wl
-
-# Additional compiler flags for building library objects.
-pic_flag=$lt_lt_prog_compiler_pic
-
-# Compiler flag to prevent dynamic linking.
-link_static_flag=$lt_lt_prog_compiler_static
-
-# Does compiler simultaneously support -c and -o options?
-compiler_c_o=$lt_lt_cv_prog_compiler_c_o
-
-# Whether or not to add -lc for building shared libraries.
-build_libtool_need_lc=$archive_cmds_need_lc
-
-# Whether or not to disallow shared libs when runtime libs are static.
-allow_libtool_libs_with_static_runtimes=$enable_shared_with_static_runtimes
-
-# Compiler flag to allow reflexive dlopens.
-export_dynamic_flag_spec=$lt_export_dynamic_flag_spec
-
-# Compiler flag to generate shared objects directly from archives.
-whole_archive_flag_spec=$lt_whole_archive_flag_spec
-
-# Whether the compiler copes with passing no objects directly.
-compiler_needs_object=$lt_compiler_needs_object
-
-# Create an old-style archive from a shared archive.
-old_archive_from_new_cmds=$lt_old_archive_from_new_cmds
-
-# Create a temporary old-style archive to link instead of a shared archive.
-old_archive_from_expsyms_cmds=$lt_old_archive_from_expsyms_cmds
-
-# Commands used to build a shared archive.
-archive_cmds=$lt_archive_cmds
-archive_expsym_cmds=$lt_archive_expsym_cmds
-
-# Commands used to build a loadable module if different from building
-# a shared archive.
-module_cmds=$lt_module_cmds
-module_expsym_cmds=$lt_module_expsym_cmds
-
-# Whether we are building with GNU ld or not.
-with_gnu_ld=$lt_with_gnu_ld
-
-# Flag that allows shared libraries with undefined symbols to be built.
-allow_undefined_flag=$lt_allow_undefined_flag
-
-# Flag that enforces no undefined symbols.
-no_undefined_flag=$lt_no_undefined_flag
-
-# Flag to hardcode \$libdir into a binary during linking.
-# This must work even if \$libdir does not exist
-hardcode_libdir_flag_spec=$lt_hardcode_libdir_flag_spec
-
-# If ld is used when linking, flag to hardcode \$libdir into a binary
-# during linking.  This must work even if \$libdir does not exist.
-hardcode_libdir_flag_spec_ld=$lt_hardcode_libdir_flag_spec_ld
-
-# Whether we need a single "-rpath" flag with a separated argument.
-hardcode_libdir_separator=$lt_hardcode_libdir_separator
-
-# Set to "yes" if using DIR/libNAME\${shared_ext} during linking hardcodes
-# DIR into the resulting binary.
-hardcode_direct=$hardcode_direct
-
-# Set to "yes" if using DIR/libNAME\${shared_ext} during linking hardcodes
-# DIR into the resulting binary and the resulting library dependency is
-# "absolute",i.e impossible to change by setting \${shlibpath_var} if the
-# library is relocated.
-hardcode_direct_absolute=$hardcode_direct_absolute
-
-# Set to "yes" if using the -LDIR flag during linking hardcodes DIR
-# into the resulting binary.
-hardcode_minus_L=$hardcode_minus_L
-
-# Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
-# into the resulting binary.
-hardcode_shlibpath_var=$hardcode_shlibpath_var
-
-# Set to "yes" if building a shared library automatically hardcodes DIR
-# into the library and all subsequent libraries and executables linked
-# against it.
-hardcode_automatic=$hardcode_automatic
-
-# Set to yes if linker adds runtime paths of dependent libraries
-# to runtime path list.
-inherit_rpath=$inherit_rpath
-
-# Whether libtool must link a program against all its dependency libraries.
-link_all_deplibs=$link_all_deplibs
-
-# Fix the shell variable \$srcfile for the compiler.
-fix_srcfile_path=$lt_fix_srcfile_path
-
-# Set to "yes" if exported symbols are required.
-always_export_symbols=$always_export_symbols
-
-# The commands to list exported symbols.
-export_symbols_cmds=$lt_export_symbols_cmds
-
-# Symbols that should not be listed in the preloaded symbols.
-exclude_expsyms=$lt_exclude_expsyms
-
-# Symbols that must always be exported.
-include_expsyms=$lt_include_expsyms
-
-# Commands necessary for linking programs (against libraries) with templates.
-prelink_cmds=$lt_prelink_cmds
-
-# Specify filename containing input files.
-file_list_spec=$lt_file_list_spec
-
-# How to hardcode a shared library path into an executable.
-hardcode_action=$hardcode_action
-
-# ### END LIBTOOL CONFIG
-
-_LT_EOF
-
-  case $host_os in
-  aix3*)
-    cat <<\_LT_EOF >> "$cfgfile"
-# AIX sometimes has problems with the GCC collect2 program.  For some
-# reason, if we set the COLLECT_NAMES environment variable, the problems
-# vanish in a puff of smoke.
-if test "X${COLLECT_NAMES+set}" != Xset; then
-  COLLECT_NAMES=
-  export COLLECT_NAMES
-fi
-_LT_EOF
-    ;;
-  esac
-
-
-ltmain="$ac_aux_dir/ltmain.sh"
-
-
-  # We use sed instead of cat because bash on DJGPP gets confused if
-  # if finds mixed CR/LF and LF-only lines.  Since sed operates in
-  # text mode, it properly converts lines to CR/LF.  This bash problem
-  # is reportedly fixed, but why not run on old versions too?
-  sed '/^# Generated shell functions inserted here/q' "$ltmain" >> "$cfgfile" \
-    || (rm -f "$cfgfile"; exit 1)
-
-  case $xsi_shell in
-  yes)
-    cat << \_LT_EOF >> "$cfgfile"
-
-# func_dirname file append nondir_replacement
-# Compute the dirname of FILE.  If nonempty, add APPEND to the result,
-# otherwise set result to NONDIR_REPLACEMENT.
-func_dirname ()
-{
-  case ${1} in
-    */*) func_dirname_result="${1%/*}${2}" ;;
-    *  ) func_dirname_result="${3}" ;;
-  esac
-}
-
-# func_basename file
-func_basename ()
-{
-  func_basename_result="${1##*/}"
-}
-
-# func_dirname_and_basename file append nondir_replacement
-# perform func_basename and func_dirname in a single function
-# call:
-#   dirname:  Compute the dirname of FILE.  If nonempty,
-#             add APPEND to the result, otherwise set result
-#             to NONDIR_REPLACEMENT.
-#             value returned in "$func_dirname_result"
-#   basename: Compute filename of FILE.
-#             value retuned in "$func_basename_result"
-# Implementation must be kept synchronized with func_dirname
-# and func_basename. For efficiency, we do not delegate to
-# those functions but instead duplicate the functionality here.
-func_dirname_and_basename ()
-{
-  case ${1} in
-    */*) func_dirname_result="${1%/*}${2}" ;;
-    *  ) func_dirname_result="${3}" ;;
-  esac
-  func_basename_result="${1##*/}"
-}
-
-# func_stripname prefix suffix name
-# strip PREFIX and SUFFIX off of NAME.
-# PREFIX and SUFFIX must not contain globbing or regex special
-# characters, hashes, percent signs, but SUFFIX may contain a leading
-# dot (in which case that matches only a dot).
-func_stripname ()
-{
-  # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are
-  # positional parameters, so assign one to ordinary parameter first.
-  func_stripname_result=${3}
-  func_stripname_result=${func_stripname_result#"${1}"}
-  func_stripname_result=${func_stripname_result%"${2}"}
-}
-
-# func_opt_split
-func_opt_split ()
-{
-  func_opt_split_opt=${1%%=*}
-  func_opt_split_arg=${1#*=}
-}
-
-# func_lo2o object
-func_lo2o ()
-{
-  case ${1} in
-    *.lo) func_lo2o_result=${1%.lo}.${objext} ;;
-    *)    func_lo2o_result=${1} ;;
-  esac
-}
-
-# func_xform libobj-or-source
-func_xform ()
-{
-  func_xform_result=${1%.*}.lo
-}
-
-# func_arith arithmetic-term...
-func_arith ()
-{
-  func_arith_result=$(( $* ))
-}
-
-# func_len string
-# STRING may not start with a hyphen.
-func_len ()
-{
-  func_len_result=${#1}
-}
-
-_LT_EOF
-    ;;
-  *) # Bourne compatible functions.
-    cat << \_LT_EOF >> "$cfgfile"
-
-# func_dirname file append nondir_replacement
-# Compute the dirname of FILE.  If nonempty, add APPEND to the result,
-# otherwise set result to NONDIR_REPLACEMENT.
-func_dirname ()
-{
-  # Extract subdirectory from the argument.
-  func_dirname_result=`$ECHO "X${1}" | $Xsed -e "$dirname"`
-  if test "X$func_dirname_result" = "X${1}"; then
-    func_dirname_result="${3}"
-  else
-    func_dirname_result="$func_dirname_result${2}"
-  fi
-}
-
-# func_basename file
-func_basename ()
-{
-  func_basename_result=`$ECHO "X${1}" | $Xsed -e "$basename"`
-}
-
-
-# func_stripname prefix suffix name
-# strip PREFIX and SUFFIX off of NAME.
-# PREFIX and SUFFIX must not contain globbing or regex special
-# characters, hashes, percent signs, but SUFFIX may contain a leading
-# dot (in which case that matches only a dot).
-# func_strip_suffix prefix name
-func_stripname ()
-{
-  case ${2} in
-    .*) func_stripname_result=`$ECHO "X${3}" \
-           | $Xsed -e "s%^${1}%%" -e "s%\\\\${2}\$%%"`;;
-    *)  func_stripname_result=`$ECHO "X${3}" \
-           | $Xsed -e "s%^${1}%%" -e "s%${2}\$%%"`;;
-  esac
-}
-
-# sed scripts:
-my_sed_long_opt='1s/^\(-[^=]*\)=.*/\1/;q'
-my_sed_long_arg='1s/^-[^=]*=//'
-
-# func_opt_split
-func_opt_split ()
-{
-  func_opt_split_opt=`$ECHO "X${1}" | $Xsed -e "$my_sed_long_opt"`
-  func_opt_split_arg=`$ECHO "X${1}" | $Xsed -e "$my_sed_long_arg"`
-}
-
-# func_lo2o object
-func_lo2o ()
-{
-  func_lo2o_result=`$ECHO "X${1}" | $Xsed -e "$lo2o"`
-}
-
-# func_xform libobj-or-source
-func_xform ()
-{
-  func_xform_result=`$ECHO "X${1}" | $Xsed -e 's/\.[^.]*$/.lo/'`
-}
-
-# func_arith arithmetic-term...
-func_arith ()
-{
-  func_arith_result=`expr "$@"`
-}
-
-# func_len string
-# STRING may not start with a hyphen.
-func_len ()
-{
-  func_len_result=`expr "$1" : ".*" 2>/dev/null || echo $max_cmd_len`
-}
-
-_LT_EOF
-esac
-
-case $lt_shell_append in
-  yes)
-    cat << \_LT_EOF >> "$cfgfile"
-
-# func_append var value
-# Append VALUE to the end of shell variable VAR.
-func_append ()
-{
-  eval "$1+=\$2"
-}
-_LT_EOF
-    ;;
-  *)
-    cat << \_LT_EOF >> "$cfgfile"
-
-# func_append var value
-# Append VALUE to the end of shell variable VAR.
-func_append ()
-{
-  eval "$1=\$$1\$2"
-}
-
-_LT_EOF
-    ;;
-  esac
-
-
-  sed -n '/^# Generated shell functions inserted here/,$p' "$ltmain" >> "$cfgfile" \
-    || (rm -f "$cfgfile"; exit 1)
-
-  mv -f "$cfgfile" "$ofile" ||
-    (rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile")
-  chmod +x "$ofile"
-
- ;;
-
-  esac
-done # for ac_tag
-
-
-as_fn_exit 0
-_ACEOF
-ac_clean_files=$ac_clean_files_save
-
-test $ac_write_fail = 0 ||
-  as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5
-
-
-# configure is writing to config.log, and then calls config.status.
-# config.status does its own redirection, appending to config.log.
-# Unfortunately, on DOS this fails, as config.log is still kept open
-# by configure, so config.status won't be able to write to it; its
-# output is simply discarded.  So we exec the FD to /dev/null,
-# effectively closing config.log, so it can be properly (re)opened and
-# appended to by config.status.  When coming back to configure, we
-# need to make the FD available again.
-if test "$no_create" != yes; then
-  ac_cs_success=:
-  ac_config_status_args=
-  test "$silent" = yes &&
-    ac_config_status_args="$ac_config_status_args --quiet"
-  exec 5>/dev/null
-  $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false
-  exec 5>>config.log
-  # Use ||, not &&, to avoid exiting from the if with $? = 1, which
-  # would make configure fail if this is the last instruction.
-  $ac_cs_success || as_fn_exit 1
-fi
-if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
-$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
-fi
-
diff --git a/deps/uv/src/unix/ev/configure.ac b/deps/uv/src/unix/ev/configure.ac
deleted file mode 100644
index 03a784f2eb..0000000000
--- a/deps/uv/src/unix/ev/configure.ac
+++ /dev/null
@@ -1,18 +0,0 @@
-AC_INIT
-AC_CONFIG_SRCDIR([ev_epoll.c])
-
-AM_INIT_AUTOMAKE(libev,4.04) dnl also update ev.h!
-AC_CONFIG_HEADERS([config.h])
-AM_MAINTAINER_MODE
-
-AC_PROG_INSTALL
-AC_PROG_LIBTOOL
-
-if test "x$GCC" = xyes ; then
-  CFLAGS="-O3 $CFLAGS"
-fi
-
-m4_include([libev.m4])
-
-AC_CONFIG_FILES([Makefile])
-AC_OUTPUT
diff --git a/deps/uv/src/unix/ev/depcomp b/deps/uv/src/unix/ev/depcomp
deleted file mode 100755
index df8eea7e4c..0000000000
--- a/deps/uv/src/unix/ev/depcomp
+++ /dev/null
@@ -1,630 +0,0 @@
-#! /bin/sh
-# depcomp - compile a program generating dependencies as side-effects
-
-scriptversion=2009-04-28.21; # UTC
-
-# Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2009 Free
-# Software Foundation, Inc.
-
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2, or (at your option)
-# any later version.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-# As a special exception to the GNU General Public License, if you
-# distribute this file as part of a program that contains a
-# configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
-
-# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
-
-case $1 in
-  '')
-     echo "$0: No command.  Try \`$0 --help' for more information." 1>&2
-     exit 1;
-     ;;
-  -h | --h*)
-    cat <<\EOF
-Usage: depcomp [--help] [--version] PROGRAM [ARGS]
-
-Run PROGRAMS ARGS to compile a file, generating dependencies
-as side-effects.
-
-Environment variables:
-  depmode     Dependency tracking mode.
-  source      Source file read by `PROGRAMS ARGS'.
-  object      Object file output by `PROGRAMS ARGS'.
-  DEPDIR      directory where to store dependencies.
-  depfile     Dependency file to output.
-  tmpdepfile  Temporary file to use when outputing dependencies.
-  libtool     Whether libtool is used (yes/no).
-
-Report bugs to <bug-automake@gnu.org>.
-EOF
-    exit $?
-    ;;
-  -v | --v*)
-    echo "depcomp $scriptversion"
-    exit $?
-    ;;
-esac
-
-if test -z "$depmode" || test -z "$source" || test -z "$object"; then
-  echo "depcomp: Variables source, object and depmode must be set" 1>&2
-  exit 1
-fi
-
-# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
-depfile=${depfile-`echo "$object" |
-  sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
-tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
-
-rm -f "$tmpdepfile"
-
-# Some modes work just like other modes, but use different flags.  We
-# parameterize here, but still list the modes in the big case below,
-# to make depend.m4 easier to write.  Note that we *cannot* use a case
-# here, because this file can only contain one case statement.
-if test "$depmode" = hp; then
-  # HP compiler uses -M and no extra arg.
-  gccflag=-M
-  depmode=gcc
-fi
-
-if test "$depmode" = dashXmstdout; then
-   # This is just like dashmstdout with a different argument.
-   dashmflag=-xM
-   depmode=dashmstdout
-fi
-
-cygpath_u="cygpath -u -f -"
-if test "$depmode" = msvcmsys; then
-   # This is just like msvisualcpp but w/o cygpath translation.
-   # Just convert the backslash-escaped backslashes to single forward
-   # slashes to satisfy depend.m4
-   cygpath_u="sed s,\\\\\\\\,/,g"
-   depmode=msvisualcpp
-fi
-
-case "$depmode" in
-gcc3)
-## gcc 3 implements dependency tracking that does exactly what
-## we want.  Yay!  Note: for some reason libtool 1.4 doesn't like
-## it if -MD -MP comes after the -MF stuff.  Hmm.
-## Unfortunately, FreeBSD c89 acceptance of flags depends upon
-## the command line argument order; so add the flags where they
-## appear in depend2.am.  Note that the slowdown incurred here
-## affects only configure: in makefiles, %FASTDEP% shortcuts this.
-  for arg
-  do
-    case $arg in
-    -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
-    *)  set fnord "$@" "$arg" ;;
-    esac
-    shift # fnord
-    shift # $arg
-  done
-  "$@"
-  stat=$?
-  if test $stat -eq 0; then :
-  else
-    rm -f "$tmpdepfile"
-    exit $stat
-  fi
-  mv "$tmpdepfile" "$depfile"
-  ;;
-
-gcc)
-## There are various ways to get dependency output from gcc.  Here's
-## why we pick this rather obscure method:
-## - Don't want to use -MD because we'd like the dependencies to end
-##   up in a subdir.  Having to rename by hand is ugly.
-##   (We might end up doing this anyway to support other compilers.)
-## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
-##   -MM, not -M (despite what the docs say).
-## - Using -M directly means running the compiler twice (even worse
-##   than renaming).
-  if test -z "$gccflag"; then
-    gccflag=-MD,
-  fi
-  "$@" -Wp,"$gccflag$tmpdepfile"
-  stat=$?
-  if test $stat -eq 0; then :
-  else
-    rm -f "$tmpdepfile"
-    exit $stat
-  fi
-  rm -f "$depfile"
-  echo "$object : \\" > "$depfile"
-  alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
-## The second -e expression handles DOS-style file names with drive letters.
-  sed -e 's/^[^:]*: / /' \
-      -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
-## This next piece of magic avoids the `deleted header file' problem.
-## The problem is that when a header file which appears in a .P file
-## is deleted, the dependency causes make to die (because there is
-## typically no way to rebuild the header).  We avoid this by adding
-## dummy dependencies for each header file.  Too bad gcc doesn't do
-## this for us directly.
-  tr ' ' '
-' < "$tmpdepfile" |
-## Some versions of gcc put a space before the `:'.  On the theory
-## that the space means something, we add a space to the output as
-## well.
-## Some versions of the HPUX 10.20 sed can't process this invocation
-## correctly.  Breaking it into two sed invocations is a workaround.
-    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
-  rm -f "$tmpdepfile"
-  ;;
-
-hp)
-  # This case exists only to let depend.m4 do its work.  It works by
-  # looking at the text of this script.  This case will never be run,
-  # since it is checked for above.
-  exit 1
-  ;;
-
-sgi)
-  if test "$libtool" = yes; then
-    "$@" "-Wp,-MDupdate,$tmpdepfile"
-  else
-    "$@" -MDupdate "$tmpdepfile"
-  fi
-  stat=$?
-  if test $stat -eq 0; then :
-  else
-    rm -f "$tmpdepfile"
-    exit $stat
-  fi
-  rm -f "$depfile"
-
-  if test -f "$tmpdepfile"; then  # yes, the sourcefile depend on other files
-    echo "$object : \\" > "$depfile"
-
-    # Clip off the initial element (the dependent).  Don't try to be
-    # clever and replace this with sed code, as IRIX sed won't handle
-    # lines with more than a fixed number of characters (4096 in
-    # IRIX 6.2 sed, 8192 in IRIX 6.5).  We also remove comment lines;
-    # the IRIX cc adds comments like `#:fec' to the end of the
-    # dependency line.
-    tr ' ' '
-' < "$tmpdepfile" \
-    | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
-    tr '
-' ' ' >> "$depfile"
-    echo >> "$depfile"
-
-    # The second pass generates a dummy entry for each header file.
-    tr ' ' '
-' < "$tmpdepfile" \
-   | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
-   >> "$depfile"
-  else
-    # The sourcefile does not contain any dependencies, so just
-    # store a dummy comment line, to avoid errors with the Makefile
-    # "include basename.Plo" scheme.
-    echo "#dummy" > "$depfile"
-  fi
-  rm -f "$tmpdepfile"
-  ;;
-
-aix)
-  # The C for AIX Compiler uses -M and outputs the dependencies
-  # in a .u file.  In older versions, this file always lives in the
-  # current directory.  Also, the AIX compiler puts `$object:' at the
-  # start of each line; $object doesn't have directory information.
-  # Version 6 uses the directory in both cases.
-  dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
-  test "x$dir" = "x$object" && dir=
-  base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
-  if test "$libtool" = yes; then
-    tmpdepfile1=$dir$base.u
-    tmpdepfile2=$base.u
-    tmpdepfile3=$dir.libs/$base.u
-    "$@" -Wc,-M
-  else
-    tmpdepfile1=$dir$base.u
-    tmpdepfile2=$dir$base.u
-    tmpdepfile3=$dir$base.u
-    "$@" -M
-  fi
-  stat=$?
-
-  if test $stat -eq 0; then :
-  else
-    rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
-    exit $stat
-  fi
-
-  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
-  do
-    test -f "$tmpdepfile" && break
-  done
-  if test -f "$tmpdepfile"; then
-    # Each line is of the form `foo.o: dependent.h'.
-    # Do two passes, one to just change these to
-    # `$object: dependent.h' and one to simply `dependent.h:'.
-    sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
-    # That's a tab and a space in the [].
-    sed -e 's,^.*\.[a-z]*:[	 ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
-  else
-    # The sourcefile does not contain any dependencies, so just
-    # store a dummy comment line, to avoid errors with the Makefile
-    # "include basename.Plo" scheme.
-    echo "#dummy" > "$depfile"
-  fi
-  rm -f "$tmpdepfile"
-  ;;
-
-icc)
-  # Intel's C compiler understands `-MD -MF file'.  However on
-  #    icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
-  # ICC 7.0 will fill foo.d with something like
-  #    foo.o: sub/foo.c
-  #    foo.o: sub/foo.h
-  # which is wrong.  We want:
-  #    sub/foo.o: sub/foo.c
-  #    sub/foo.o: sub/foo.h
-  #    sub/foo.c:
-  #    sub/foo.h:
-  # ICC 7.1 will output
-  #    foo.o: sub/foo.c sub/foo.h
-  # and will wrap long lines using \ :
-  #    foo.o: sub/foo.c ... \
-  #     sub/foo.h ... \
-  #     ...
-
-  "$@" -MD -MF "$tmpdepfile"
-  stat=$?
-  if test $stat -eq 0; then :
-  else
-    rm -f "$tmpdepfile"
-    exit $stat
-  fi
-  rm -f "$depfile"
-  # Each line is of the form `foo.o: dependent.h',
-  # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
-  # Do two passes, one to just change these to
-  # `$object: dependent.h' and one to simply `dependent.h:'.
-  sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
-  # Some versions of the HPUX 10.20 sed can't process this invocation
-  # correctly.  Breaking it into two sed invocations is a workaround.
-  sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" |
-    sed -e 's/$/ :/' >> "$depfile"
-  rm -f "$tmpdepfile"
-  ;;
-
-hp2)
-  # The "hp" stanza above does not work with aCC (C++) and HP's ia64
-  # compilers, which have integrated preprocessors.  The correct option
-  # to use with these is +Maked; it writes dependencies to a file named
-  # 'foo.d', which lands next to the object file, wherever that
-  # happens to be.
-  # Much of this is similar to the tru64 case; see comments there.
-  dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
-  test "x$dir" = "x$object" && dir=
-  base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
-  if test "$libtool" = yes; then
-    tmpdepfile1=$dir$base.d
-    tmpdepfile2=$dir.libs/$base.d
-    "$@" -Wc,+Maked
-  else
-    tmpdepfile1=$dir$base.d
-    tmpdepfile2=$dir$base.d
-    "$@" +Maked
-  fi
-  stat=$?
-  if test $stat -eq 0; then :
-  else
-     rm -f "$tmpdepfile1" "$tmpdepfile2"
-     exit $stat
-  fi
-
-  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
-  do
-    test -f "$tmpdepfile" && break
-  done
-  if test -f "$tmpdepfile"; then
-    sed -e "s,^.*\.[a-z]*:,$object:," "$tmpdepfile" > "$depfile"
-    # Add `dependent.h:' lines.
-    sed -ne '2,${
-	       s/^ *//
-	       s/ \\*$//
-	       s/$/:/
-	       p
-	     }' "$tmpdepfile" >> "$depfile"
-  else
-    echo "#dummy" > "$depfile"
-  fi
-  rm -f "$tmpdepfile" "$tmpdepfile2"
-  ;;
-
-tru64)
-   # The Tru64 compiler uses -MD to generate dependencies as a side
-   # effect.  `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
-   # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
-   # dependencies in `foo.d' instead, so we check for that too.
-   # Subdirectories are respected.
-   dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
-   test "x$dir" = "x$object" && dir=
-   base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
-
-   if test "$libtool" = yes; then
-      # With Tru64 cc, shared objects can also be used to make a
-      # static library.  This mechanism is used in libtool 1.4 series to
-      # handle both shared and static libraries in a single compilation.
-      # With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d.
-      #
-      # With libtool 1.5 this exception was removed, and libtool now
-      # generates 2 separate objects for the 2 libraries.  These two
-      # compilations output dependencies in $dir.libs/$base.o.d and
-      # in $dir$base.o.d.  We have to check for both files, because
-      # one of the two compilations can be disabled.  We should prefer
-      # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
-      # automatically cleaned when .libs/ is deleted, while ignoring
-      # the former would cause a distcleancheck panic.
-      tmpdepfile1=$dir.libs/$base.lo.d   # libtool 1.4
-      tmpdepfile2=$dir$base.o.d          # libtool 1.5
-      tmpdepfile3=$dir.libs/$base.o.d    # libtool 1.5
-      tmpdepfile4=$dir.libs/$base.d      # Compaq CCC V6.2-504
-      "$@" -Wc,-MD
-   else
-      tmpdepfile1=$dir$base.o.d
-      tmpdepfile2=$dir$base.d
-      tmpdepfile3=$dir$base.d
-      tmpdepfile4=$dir$base.d
-      "$@" -MD
-   fi
-
-   stat=$?
-   if test $stat -eq 0; then :
-   else
-      rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
-      exit $stat
-   fi
-
-   for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
-   do
-     test -f "$tmpdepfile" && break
-   done
-   if test -f "$tmpdepfile"; then
-      sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
-      # That's a tab and a space in the [].
-      sed -e 's,^.*\.[a-z]*:[	 ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
-   else
-      echo "#dummy" > "$depfile"
-   fi
-   rm -f "$tmpdepfile"
-   ;;
-
-#nosideeffect)
-  # This comment above is used by automake to tell side-effect
-  # dependency tracking mechanisms from slower ones.
-
-dashmstdout)
-  # Important note: in order to support this mode, a compiler *must*
-  # always write the preprocessed file to stdout, regardless of -o.
-  "$@" || exit $?
-
-  # Remove the call to Libtool.
-  if test "$libtool" = yes; then
-    while test "X$1" != 'X--mode=compile'; do
-      shift
-    done
-    shift
-  fi
-
-  # Remove `-o $object'.
-  IFS=" "
-  for arg
-  do
-    case $arg in
-    -o)
-      shift
-      ;;
-    $object)
-      shift
-      ;;
-    *)
-      set fnord "$@" "$arg"
-      shift # fnord
-      shift # $arg
-      ;;
-    esac
-  done
-
-  test -z "$dashmflag" && dashmflag=-M
-  # Require at least two characters before searching for `:'
-  # in the target name.  This is to cope with DOS-style filenames:
-  # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
-  "$@" $dashmflag |
-    sed 's:^[  ]*[^: ][^:][^:]*\:[    ]*:'"$object"'\: :' > "$tmpdepfile"
-  rm -f "$depfile"
-  cat < "$tmpdepfile" > "$depfile"
-  tr ' ' '
-' < "$tmpdepfile" | \
-## Some versions of the HPUX 10.20 sed can't process this invocation
-## correctly.  Breaking it into two sed invocations is a workaround.
-    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
-  rm -f "$tmpdepfile"
-  ;;
-
-dashXmstdout)
-  # This case only exists to satisfy depend.m4.  It is never actually
-  # run, as this mode is specially recognized in the preamble.
-  exit 1
-  ;;
-
-makedepend)
-  "$@" || exit $?
-  # Remove any Libtool call
-  if test "$libtool" = yes; then
-    while test "X$1" != 'X--mode=compile'; do
-      shift
-    done
-    shift
-  fi
-  # X makedepend
-  shift
-  cleared=no eat=no
-  for arg
-  do
-    case $cleared in
-    no)
-      set ""; shift
-      cleared=yes ;;
-    esac
-    if test $eat = yes; then
-      eat=no
-      continue
-    fi
-    case "$arg" in
-    -D*|-I*)
-      set fnord "$@" "$arg"; shift ;;
-    # Strip any option that makedepend may not understand.  Remove
-    # the object too, otherwise makedepend will parse it as a source file.
-    -arch)
-      eat=yes ;;
-    -*|$object)
-      ;;
-    *)
-      set fnord "$@" "$arg"; shift ;;
-    esac
-  done
-  obj_suffix=`echo "$object" | sed 's/^.*\././'`
-  touch "$tmpdepfile"
-  ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
-  rm -f "$depfile"
-  cat < "$tmpdepfile" > "$depfile"
-  sed '1,2d' "$tmpdepfile" | tr ' ' '
-' | \
-## Some versions of the HPUX 10.20 sed can't process this invocation
-## correctly.  Breaking it into two sed invocations is a workaround.
-    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
-  rm -f "$tmpdepfile" "$tmpdepfile".bak
-  ;;
-
-cpp)
-  # Important note: in order to support this mode, a compiler *must*
-  # always write the preprocessed file to stdout.
-  "$@" || exit $?
-
-  # Remove the call to Libtool.
-  if test "$libtool" = yes; then
-    while test "X$1" != 'X--mode=compile'; do
-      shift
-    done
-    shift
-  fi
-
-  # Remove `-o $object'.
-  IFS=" "
-  for arg
-  do
-    case $arg in
-    -o)
-      shift
-      ;;
-    $object)
-      shift
-      ;;
-    *)
-      set fnord "$@" "$arg"
-      shift # fnord
-      shift # $arg
-      ;;
-    esac
-  done
-
-  "$@" -E |
-    sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
-       -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
-    sed '$ s: \\$::' > "$tmpdepfile"
-  rm -f "$depfile"
-  echo "$object : \\" > "$depfile"
-  cat < "$tmpdepfile" >> "$depfile"
-  sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
-  rm -f "$tmpdepfile"
-  ;;
-
-msvisualcpp)
-  # Important note: in order to support this mode, a compiler *must*
-  # always write the preprocessed file to stdout.
-  "$@" || exit $?
-
-  # Remove the call to Libtool.
-  if test "$libtool" = yes; then
-    while test "X$1" != 'X--mode=compile'; do
-      shift
-    done
-    shift
-  fi
-
-  IFS=" "
-  for arg
-  do
-    case "$arg" in
-    -o)
-      shift
-      ;;
-    $object)
-      shift
-      ;;
-    "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
-	set fnord "$@"
-	shift
-	shift
-	;;
-    *)
-	set fnord "$@" "$arg"
-	shift
-	shift
-	;;
-    esac
-  done
-  "$@" -E 2>/dev/null |
-  sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile"
-  rm -f "$depfile"
-  echo "$object : \\" > "$depfile"
-  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::	\1 \\:p' >> "$depfile"
-  echo "	" >> "$depfile"
-  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile"
-  rm -f "$tmpdepfile"
-  ;;
-
-msvcmsys)
-  # This case exists only to let depend.m4 do its work.  It works by
-  # looking at the text of this script.  This case will never be run,
-  # since it is checked for above.
-  exit 1
-  ;;
-
-none)
-  exec "$@"
-  ;;
-
-*)
-  echo "Unknown depmode $depmode" 1>&2
-  exit 1
-  ;;
-esac
-
-exit 0
-
-# Local Variables:
-# mode: shell-script
-# sh-indentation: 2
-# eval: (add-hook 'write-file-hooks 'time-stamp)
-# time-stamp-start: "scriptversion="
-# time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC"
-# time-stamp-end: "; # UTC"
-# End:
diff --git a/deps/uv/src/unix/ev/ev++.h b/deps/uv/src/unix/ev/ev++.h
deleted file mode 100644
index ce42b5f2de..0000000000
--- a/deps/uv/src/unix/ev/ev++.h
+++ /dev/null
@@ -1,816 +0,0 @@
-/*
- * libev simple C++ wrapper classes
- *
- * Copyright (c) 2007,2008,2010 Marc Alexander Lehmann <libev@schmorp.de>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modifica-
- * tion, are permitted provided that the following conditions are met:
- *
- *   1.  Redistributions of source code must retain the above copyright notice,
- *       this list of conditions and the following disclaimer.
- *
- *   2.  Redistributions in binary form must reproduce the above copyright
- *       notice, this list of conditions and the following disclaimer in the
- *       documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
- * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
- * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
- * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Alternatively, the contents of this file may be used under the terms of
- * the GNU General Public License ("GPL") version 2 or any later version,
- * in which case the provisions of the GPL are applicable instead of
- * the above. If you wish to allow the use of your version of this file
- * only under the terms of the GPL and not to allow others to use your
- * version of this file under the BSD license, indicate your decision
- * by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL. If you do not delete the
- * provisions above, a recipient may use your version of this file under
- * either the BSD or the GPL.
- */
-
-#ifndef EVPP_H__
-#define EVPP_H__
-
-#ifdef EV_H
-# include EV_H
-#else
-# include "ev.h"
-#endif
-
-#ifndef EV_USE_STDEXCEPT
-# define EV_USE_STDEXCEPT 1
-#endif
-
-#if EV_USE_STDEXCEPT
-# include <stdexcept>
-#endif
-
-namespace ev {
-
-  typedef ev_tstamp tstamp;
-
-  enum {
-    UNDEF    = EV_UNDEF,
-    NONE     = EV_NONE,
-    READ     = EV_READ,
-    WRITE    = EV_WRITE,
-#if EV_COMPAT3
-    TIMEOUT  = EV_TIMEOUT,
-#endif
-    TIMER    = EV_TIMER,
-    PERIODIC = EV_PERIODIC,
-    SIGNAL   = EV_SIGNAL,
-    CHILD    = EV_CHILD,
-    STAT     = EV_STAT,
-    IDLE     = EV_IDLE,
-    CHECK    = EV_CHECK,
-    PREPARE  = EV_PREPARE,
-    FORK     = EV_FORK,
-    ASYNC    = EV_ASYNC,
-    EMBED    = EV_EMBED,
-#   undef ERROR // some systems stupidly #define ERROR
-    ERROR    = EV_ERROR
-  };
-
-  enum
-  {
-    AUTO      = EVFLAG_AUTO,
-    NOENV     = EVFLAG_NOENV,
-    FORKCHECK = EVFLAG_FORKCHECK,
-
-    SELECT    = EVBACKEND_SELECT,
-    POLL      = EVBACKEND_POLL,
-    EPOLL     = EVBACKEND_EPOLL,
-    KQUEUE    = EVBACKEND_KQUEUE,
-    DEVPOLL   = EVBACKEND_DEVPOLL,
-    PORT      = EVBACKEND_PORT
-  };
-
-  enum
-  {
-#if EV_COMPAT3
-    NONBLOCK = EVLOOP_NONBLOCK,
-    ONESHOT  = EVLOOP_ONESHOT,
-#endif
-    NOWAIT   = EVRUN_NOWAIT,
-    ONCE     = EVRUN_ONCE
-  };
-
-  enum how_t
-  {
-    ONE = EVBREAK_ONE,
-    ALL = EVBREAK_ALL
-  };
-
-  struct bad_loop
-#if EV_USE_STDEXCEPT
-  : std::runtime_error
-#endif
-  {
-#if EV_USE_STDEXCEPT
-    bad_loop ()
-    : std::runtime_error ("libev event loop cannot be initialized, bad value of LIBEV_FLAGS?")
-    {
-    }
-#endif
-  };
-
-#ifdef EV_AX
-#  undef EV_AX
-#endif
-
-#ifdef EV_AX_
-#  undef EV_AX_
-#endif
-
-#if EV_MULTIPLICITY
-#  define EV_AX  raw_loop
-#  define EV_AX_ raw_loop,
-#else
-#  define EV_AX
-#  define EV_AX_
-#endif
-
-  struct loop_ref
-  {
-    loop_ref (EV_P) throw ()
-#if EV_MULTIPLICITY
-    : EV_AX (EV_A)
-#endif
-    {
-    }
-
-    bool operator == (const loop_ref &other) const throw ()
-    {
-#if EV_MULTIPLICITY
-      return EV_AX == other.EV_AX;
-#else
-      return true;
-#endif
-    }
-
-    bool operator != (const loop_ref &other) const throw ()
-    {
-#if EV_MULTIPLICITY
-      return ! (*this == other);
-#else
-      return false;
-#endif
-    }
-
-#if EV_MULTIPLICITY
-    bool operator == (const EV_P) const throw ()
-    {
-      return this->EV_AX == EV_A;
-    }
-
-    bool operator != (const EV_P) const throw ()
-    {
-      return (*this == EV_A);
-    }
-
-    operator struct ev_loop * () const throw ()
-    {
-      return EV_AX;
-    }
-
-    operator const struct ev_loop * () const throw ()
-    {
-      return EV_AX;
-    }
-
-    bool is_default () const throw ()
-    {
-      return EV_AX == ev_default_loop (0);
-    }
-#endif
-
-#if EV_COMPAT3
-    void loop (int flags = 0)
-    {
-      ev_run (EV_AX_ flags);
-    }
-
-    void unloop (how_t how = ONE) throw ()
-    {
-      ev_break (EV_AX_ how);
-    }
-#endif
-
-    void run (int flags = 0)
-    {
-      ev_run (EV_AX_ flags);
-    }
-
-    void break_loop (how_t how = ONE) throw ()
-    {
-      ev_break (EV_AX_ how);
-    }
-
-    void post_fork () throw ()
-    {
-      ev_loop_fork (EV_AX);
-    }
-
-    unsigned int backend () const throw ()
-    {
-      return ev_backend (EV_AX);
-    }
-
-    tstamp now () const throw ()
-    {
-      return ev_now (EV_AX);
-    }
-
-    void ref () throw ()
-    {
-      ev_ref (EV_AX);
-    }
-
-    void unref () throw ()
-    {
-      ev_unref (EV_AX);
-    }
-
-#if EV_FEATURE_API
-    unsigned int iteration () const throw ()
-    {
-      return ev_iteration (EV_AX);
-    }
-
-    unsigned int depth () const throw ()
-    {
-      return ev_depth (EV_AX);
-    }
-
-    void set_io_collect_interval (tstamp interval) throw ()
-    {
-      ev_set_io_collect_interval (EV_AX_ interval);
-    }
-
-    void set_timeout_collect_interval (tstamp interval) throw ()
-    {
-      ev_set_timeout_collect_interval (EV_AX_ interval);
-    }
-#endif
-
-    // function callback
-    void once (int fd, int events, tstamp timeout, void (*cb)(int, void *), void *arg = 0) throw ()
-    {
-      ev_once (EV_AX_ fd, events, timeout, cb, arg);
-    }
-
-    // method callback
-    template<class K, void (K::*method)(int)>
-    void once (int fd, int events, tstamp timeout, K *object) throw ()
-    {
-      once (fd, events, timeout, method_thunk<K, method>, object);
-    }
-
-    // default method == operator ()
-    template<class K>
-    void once (int fd, int events, tstamp timeout, K *object) throw ()
-    {
-      once (fd, events, timeout, method_thunk<K, &K::operator ()>, object);
-    }
-
-    template<class K, void (K::*method)(int)>
-    static void method_thunk (int revents, void *arg)
-    {
-      static_cast<K *>(arg)->*method
-        (revents);
-    }
-
-    // no-argument method callback
-    template<class K, void (K::*method)()>
-    void once (int fd, int events, tstamp timeout, K *object) throw ()
-    {
-      once (fd, events, timeout, method_noargs_thunk<K, method>, object);
-    }
-
-    template<class K, void (K::*method)()>
-    static void method_noargs_thunk (int revents, void *arg)
-    {
-      static_cast<K *>(arg)->*method
-        ();
-    }
-
-    // simpler function callback
-    template<void (*cb)(int)>
-    void once (int fd, int events, tstamp timeout) throw ()
-    {
-      once (fd, events, timeout, simpler_func_thunk<cb>);
-    }
-
-    template<void (*cb)(int)>
-    static void simpler_func_thunk (int revents, void *arg)
-    {
-      (*cb)
-        (revents);
-    }
-
-    // simplest function callback
-    template<void (*cb)()>
-    void once (int fd, int events, tstamp timeout) throw ()
-    {
-      once (fd, events, timeout, simplest_func_thunk<cb>);
-    }
-
-    template<void (*cb)()>
-    static void simplest_func_thunk (int revents, void *arg)
-    {
-      (*cb)
-        ();
-    }
-
-    void feed_fd_event (int fd, int revents) throw ()
-    {
-      ev_feed_fd_event (EV_AX_ fd, revents);
-    }
-
-    void feed_signal_event (int signum) throw ()
-    {
-      ev_feed_signal_event (EV_AX_ signum);
-    }
-
-#if EV_MULTIPLICITY
-    struct ev_loop* EV_AX;
-#endif
-
-  };
-
-#if EV_MULTIPLICITY
-  struct dynamic_loop : loop_ref
-  {
-
-    dynamic_loop (unsigned int flags = AUTO) throw (bad_loop)
-    : loop_ref (ev_loop_new (flags))
-    {
-      if (!EV_AX)
-        throw bad_loop ();
-    }
-
-    ~dynamic_loop () throw ()
-    {
-      ev_loop_destroy (EV_AX);
-      EV_AX = 0;
-    }
-
-  private:
-
-    dynamic_loop (const dynamic_loop &);
-
-    dynamic_loop & operator= (const dynamic_loop &);
-
-  };
-#endif
-
-  struct default_loop : loop_ref
-  {
-    default_loop (unsigned int flags = AUTO) throw (bad_loop)
-#if EV_MULTIPLICITY
-    : loop_ref (ev_default_loop (flags))
-#endif
-    {
-      if (
-#if EV_MULTIPLICITY
-          !EV_AX
-#else
-          !ev_default_loop (flags)
-#endif
-      )
-        throw bad_loop ();
-    }
-
-  private:
-    default_loop (const default_loop &);
-    default_loop &operator = (const default_loop &);
-  };
-
-  inline loop_ref get_default_loop () throw ()
-  {
-#if EV_MULTIPLICITY
-    return ev_default_loop (0);
-#else
-    return loop_ref ();
-#endif
-  }
-
-#undef EV_AX
-#undef EV_AX_
-
-#undef EV_PX
-#undef EV_PX_
-#if EV_MULTIPLICITY
-#  define EV_PX  loop_ref EV_A
-#  define EV_PX_ loop_ref EV_A_
-#else
-#  define EV_PX
-#  define EV_PX_
-#endif
-
-  template<class ev_watcher, class watcher>
-  struct base : ev_watcher
-  {
-    #if EV_MULTIPLICITY
-      EV_PX;
-
-      // loop set
-      void set (EV_P) throw ()
-      {
-        this->EV_A = EV_A;
-      }
-    #endif
-
-    base (EV_PX) throw ()
-    #if EV_MULTIPLICITY
-      : EV_A (EV_A)
-    #endif
-    {
-      ev_init (this, 0);
-    }
-
-    void set_ (const void *data, void (*cb)(EV_P_ ev_watcher *w, int revents)) throw ()
-    {
-      this->data = (void *)data;
-      ev_set_cb (static_cast<ev_watcher *>(this), cb);
-    }
-
-    // function callback
-    template<void (*function)(watcher &w, int)>
-    void set (void *data = 0) throw ()
-    {
-      set_ (data, function_thunk<function>);
-    }
-
-    template<void (*function)(watcher &w, int)>
-    static void function_thunk (EV_P_ ev_watcher *w, int revents)
-    {
-      function
-        (*static_cast<watcher *>(w), revents);
-    }
-
-    // method callback
-    template<class K, void (K::*method)(watcher &w, int)>
-    void set (K *object) throw ()
-    {
-      set_ (object, method_thunk<K, method>);
-    }
-
-    // default method == operator ()
-    template<class K>
-    void set (K *object) throw ()
-    {
-      set_ (object, method_thunk<K, &K::operator ()>);
-    }
-
-    template<class K, void (K::*method)(watcher &w, int)>
-    static void method_thunk (EV_P_ ev_watcher *w, int revents)
-    {
-      (static_cast<K *>(w->data)->*method)
-        (*static_cast<watcher *>(w), revents);
-    }
-
-    // no-argument callback
-    template<class K, void (K::*method)()>
-    void set (K *object) throw ()
-    {
-      set_ (object, method_noargs_thunk<K, method>);
-    }
-
-    template<class K, void (K::*method)()>
-    static void method_noargs_thunk (EV_P_ ev_watcher *w, int revents)
-    {
-      (static_cast<K *>(w->data)->*method)
-        ();
-    }
-
-    void operator ()(int events = EV_UNDEF)
-    {
-      return
-        ev_cb (static_cast<ev_watcher *>(this))
-          (static_cast<ev_watcher *>(this), events);
-    }
-
-    bool is_active () const throw ()
-    {
-      return ev_is_active (static_cast<const ev_watcher *>(this));
-    }
-
-    bool is_pending () const throw ()
-    {
-      return ev_is_pending (static_cast<const ev_watcher *>(this));
-    }
-
-    void feed_event (int revents) throw ()
-    {
-      ev_feed_event (EV_A_ static_cast<const ev_watcher *>(this), revents);
-    }
-  };
-
-  inline tstamp now () throw ()
-  {
-    return ev_time ();
-  }
-
-  inline void delay (tstamp interval) throw ()
-  {
-    ev_sleep (interval);
-  }
-
-  inline int version_major () throw ()
-  {
-    return ev_version_major ();
-  }
-
-  inline int version_minor () throw ()
-  {
-    return ev_version_minor ();
-  }
-
-  inline unsigned int supported_backends () throw ()
-  {
-    return ev_supported_backends ();
-  }
-
-  inline unsigned int recommended_backends () throw ()
-  {
-    return ev_recommended_backends ();
-  }
-
-  inline unsigned int embeddable_backends () throw ()
-  {
-    return ev_embeddable_backends ();
-  }
-
-  inline void set_allocator (void *(*cb)(void *ptr, long size)) throw ()
-  {
-    ev_set_allocator (cb);
-  }
-
-  inline void set_syserr_cb (void (*cb)(const char *msg)) throw ()
-  {
-    ev_set_syserr_cb (cb);
-  }
-
-  #if EV_MULTIPLICITY
-    #define EV_CONSTRUCT(cppstem,cstem)	                                                \
-      (EV_PX = get_default_loop ()) throw ()                                            \
-        : base<ev_ ## cstem, cppstem> (EV_A)                                            \
-      {                                                                                 \
-      }
-  #else
-    #define EV_CONSTRUCT(cppstem,cstem)                                                 \
-      () throw ()                                                                       \
-      {                                                                                 \
-      }
-  #endif
-
-  /* using a template here would require quite a bit more lines,
-   * so a macro solution was chosen */
-  #define EV_BEGIN_WATCHER(cppstem,cstem)	                                        \
-                                                                                        \
-  struct cppstem : base<ev_ ## cstem, cppstem>                                          \
-  {                                                                                     \
-    void start () throw ()                                                              \
-    {                                                                                   \
-      ev_ ## cstem ## _start (EV_A_ static_cast<ev_ ## cstem *>(this));                 \
-    }                                                                                   \
-                                                                                        \
-    void stop () throw ()                                                               \
-    {                                                                                   \
-      ev_ ## cstem ## _stop (EV_A_ static_cast<ev_ ## cstem *>(this));                  \
-    }                                                                                   \
-                                                                                        \
-    cppstem EV_CONSTRUCT(cppstem,cstem)                                                 \
-                                                                                        \
-    ~cppstem () throw ()                                                                \
-    {                                                                                   \
-      stop ();                                                                          \
-    }                                                                                   \
-                                                                                        \
-    using base<ev_ ## cstem, cppstem>::set;                                             \
-                                                                                        \
-  private:                                                                              \
-                                                                                        \
-    cppstem (const cppstem &o);                                                         \
-                                                                                        \
-    cppstem &operator =(const cppstem &o);                                              \
-                                                                                        \
-  public:
-
-  #define EV_END_WATCHER(cppstem,cstem)	                                                \
-  };
-
-  EV_BEGIN_WATCHER (io, io)
-    void set (int fd, int events) throw ()
-    {
-      int active = is_active ();
-      if (active) stop ();
-      ev_io_set (static_cast<ev_io *>(this), fd, events);
-      if (active) start ();
-    }
-
-    void set (int events) throw ()
-    {
-      int active = is_active ();
-      if (active) stop ();
-      ev_io_set (static_cast<ev_io *>(this), fd, events);
-      if (active) start ();
-    }
-
-    void start (int fd, int events) throw ()
-    {
-      set (fd, events);
-      start ();
-    }
-  EV_END_WATCHER (io, io)
-
-  EV_BEGIN_WATCHER (timer, timer)
-    void set (ev_tstamp after, ev_tstamp repeat = 0.) throw ()
-    {
-      int active = is_active ();
-      if (active) stop ();
-      ev_timer_set (static_cast<ev_timer *>(this), after, repeat);
-      if (active) start ();
-    }
-
-    void start (ev_tstamp after, ev_tstamp repeat = 0.) throw ()
-    {
-      set (after, repeat);
-      start ();
-    }
-
-    void again () throw ()
-    {
-      ev_timer_again (EV_A_ static_cast<ev_timer *>(this));
-    }
-
-    ev_tstamp remaining ()
-    {
-      return ev_timer_remaining (EV_A_ static_cast<ev_timer *>(this));
-    }
-  EV_END_WATCHER (timer, timer)
-
-  #if EV_PERIODIC_ENABLE
-  EV_BEGIN_WATCHER (periodic, periodic)
-    void set (ev_tstamp at, ev_tstamp interval = 0.) throw ()
-    {
-      int active = is_active ();
-      if (active) stop ();
-      ev_periodic_set (static_cast<ev_periodic *>(this), at, interval, 0);
-      if (active) start ();
-    }
-
-    void start (ev_tstamp at, ev_tstamp interval = 0.) throw ()
-    {
-      set (at, interval);
-      start ();
-    }
-
-    void again () throw ()
-    {
-      ev_periodic_again (EV_A_ static_cast<ev_periodic *>(this));
-    }
-  EV_END_WATCHER (periodic, periodic)
-  #endif
-
-  #if EV_SIGNAL_ENABLE
-  EV_BEGIN_WATCHER (sig, signal)
-    void set (int signum) throw ()
-    {
-      int active = is_active ();
-      if (active) stop ();
-      ev_signal_set (static_cast<ev_signal *>(this), signum);
-      if (active) start ();
-    }
-
-    void start (int signum) throw ()
-    {
-      set (signum);
-      start ();
-    }
-  EV_END_WATCHER (sig, signal)
-  #endif
-
-  #if EV_CHILD_ENABLE
-  EV_BEGIN_WATCHER (child, child)
-    void set (int pid, int trace = 0) throw ()
-    {
-      int active = is_active ();
-      if (active) stop ();
-      ev_child_set (static_cast<ev_child *>(this), pid, trace);
-      if (active) start ();
-    }
-
-    void start (int pid, int trace = 0) throw ()
-    {
-      set (pid, trace);
-      start ();
-    }
-  EV_END_WATCHER (child, child)
-  #endif
-
-  #if EV_STAT_ENABLE
-  EV_BEGIN_WATCHER (stat, stat)
-    void set (const char *path, ev_tstamp interval = 0.) throw ()
-    {
-      int active = is_active ();
-      if (active) stop ();
-      ev_stat_set (static_cast<ev_stat *>(this), path, interval);
-      if (active) start ();
-    }
-
-    void start (const char *path, ev_tstamp interval = 0.) throw ()
-    {
-      stop ();
-      set (path, interval);
-      start ();
-    }
-
-    void update () throw ()
-    {
-      ev_stat_stat (EV_A_ static_cast<ev_stat *>(this));
-    }
-  EV_END_WATCHER (stat, stat)
-  #endif
-
-  #if EV_IDLE_ENABLE
-  EV_BEGIN_WATCHER (idle, idle)
-    void set () throw () { }
-  EV_END_WATCHER (idle, idle)
-  #endif
-
-  #if EV_PREPARE_ENABLE
-  EV_BEGIN_WATCHER (prepare, prepare)
-    void set () throw () { }
-  EV_END_WATCHER (prepare, prepare)
-  #endif
-
-  #if EV_CHECK_ENABLE
-  EV_BEGIN_WATCHER (check, check)
-    void set () throw () { }
-  EV_END_WATCHER (check, check)
-  #endif
-
-  #if EV_EMBED_ENABLE
-  EV_BEGIN_WATCHER (embed, embed)
-    void set (struct ev_loop *embedded_loop) throw ()
-    {
-      int active = is_active ();
-      if (active) stop ();
-      ev_embed_set (static_cast<ev_embed *>(this), embedded_loop);
-      if (active) start ();
-    }
-
-    void start (struct ev_loop *embedded_loop) throw ()
-    {
-      set (embedded_loop);
-      start ();
-    }
-
-    void sweep ()
-    {
-      ev_embed_sweep (EV_A_ static_cast<ev_embed *>(this));
-    }
-  EV_END_WATCHER (embed, embed)
-  #endif
-
-  #if EV_FORK_ENABLE
-  EV_BEGIN_WATCHER (fork, fork)
-    void set () throw () { }
-  EV_END_WATCHER (fork, fork)
-  #endif
-
-  #if EV_ASYNC_ENABLE
-  EV_BEGIN_WATCHER (async, async)
-    void send () throw ()
-    {
-      ev_async_send (EV_A_ static_cast<ev_async *>(this));
-    }
-
-    bool async_pending () throw ()
-    {
-      return ev_async_pending (static_cast<ev_async *>(this));
-    }
-  EV_END_WATCHER (async, async)
-  #endif
-
-  #undef EV_PX
-  #undef EV_PX_
-  #undef EV_CONSTRUCT
-  #undef EV_BEGIN_WATCHER
-  #undef EV_END_WATCHER
-}
-
-#endif
-
diff --git a/deps/uv/src/unix/ev/ev.3 b/deps/uv/src/unix/ev/ev.3
deleted file mode 100644
index f2a4514582..0000000000
--- a/deps/uv/src/unix/ev/ev.3
+++ /dev/null
@@ -1,5311 +0,0 @@
-.\" Automatically generated by Pod::Man 2.22 (Pod::Simple 3.07)
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-.rm #[ #] #H #V #F C
-.\" ========================================================================
-.\"
-.IX Title "LIBEV 3"
-.TH LIBEV 3 "2011-02-16" "libev-4.04" "libev - high performance full featured event loop"
-.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
-.\" way too many mistakes in technical documents.
-.if n .ad l
-.nh
-.SH "NAME"
-libev \- a high performance full\-featured event loop written in C
-.SH "SYNOPSIS"
-.IX Header "SYNOPSIS"
-.Vb 1
-\&   #include <ev.h>
-.Ve
-.SS "\s-1EXAMPLE\s0 \s-1PROGRAM\s0"
-.IX Subsection "EXAMPLE PROGRAM"
-.Vb 2
-\&   // a single header file is required
-\&   #include <ev.h>
-\&
-\&   #include <stdio.h> // for puts
-\&
-\&   // every watcher type has its own typedef\*(Aqd struct
-\&   // with the name ev_TYPE
-\&   ev_io stdin_watcher;
-\&   ev_timer timeout_watcher;
-\&
-\&   // all watcher callbacks have a similar signature
-\&   // this callback is called when data is readable on stdin
-\&   static void
-\&   stdin_cb (EV_P_ ev_io *w, int revents)
-\&   {
-\&     puts ("stdin ready");
-\&     // for one\-shot events, one must manually stop the watcher
-\&     // with its corresponding stop function.
-\&     ev_io_stop (EV_A_ w);
-\&
-\&     // this causes all nested ev_run\*(Aqs to stop iterating
-\&     ev_break (EV_A_ EVBREAK_ALL);
-\&   }
-\&
-\&   // another callback, this time for a time\-out
-\&   static void
-\&   timeout_cb (EV_P_ ev_timer *w, int revents)
-\&   {
-\&     puts ("timeout");
-\&     // this causes the innermost ev_run to stop iterating
-\&     ev_break (EV_A_ EVBREAK_ONE);
-\&   }
-\&
-\&   int
-\&   main (void)
-\&   {
-\&     // use the default event loop unless you have special needs
-\&     struct ev_loop *loop = EV_DEFAULT;
-\&
-\&     // initialise an io watcher, then start it
-\&     // this one will watch for stdin to become readable
-\&     ev_io_init (&stdin_watcher, stdin_cb, /*STDIN_FILENO*/ 0, EV_READ);
-\&     ev_io_start (loop, &stdin_watcher);
-\&
-\&     // initialise a timer watcher, then start it
-\&     // simple non\-repeating 5.5 second timeout
-\&     ev_timer_init (&timeout_watcher, timeout_cb, 5.5, 0.);
-\&     ev_timer_start (loop, &timeout_watcher);
-\&
-\&     // now wait for events to arrive
-\&     ev_run (loop, 0);
-\&
-\&     // break was called, so exit
-\&     return 0;
-\&   }
-.Ve
-.SH "ABOUT THIS DOCUMENT"
-.IX Header "ABOUT THIS DOCUMENT"
-This document documents the libev software package.
-.PP
-The newest version of this document is also available as an html-formatted
-web page you might find easier to navigate when reading it for the first
-time: <http://pod.tst.eu/http://cvs.schmorp.de/libev/ev.pod>.
-.PP
-While this document tries to be as complete as possible in documenting
-libev, its usage and the rationale behind its design, it is not a tutorial
-on event-based programming, nor will it introduce event-based programming
-with libev.
-.PP
-Familiarity with event based programming techniques in general is assumed
-throughout this document.
-.SH "WHAT TO READ WHEN IN A HURRY"
-.IX Header "WHAT TO READ WHEN IN A HURRY"
-This manual tries to be very detailed, but unfortunately, this also makes
-it very long. If you just want to know the basics of libev, I suggest
-reading \*(L"\s-1ANATOMY\s0 \s-1OF\s0 A \s-1WATCHER\s0\*(R", then the \*(L"\s-1EXAMPLE\s0 \s-1PROGRAM\s0\*(R" above and
-look up the missing functions in \*(L"\s-1GLOBAL\s0 \s-1FUNCTIONS\s0\*(R" and the \f(CW\*(C`ev_io\*(C'\fR and
-\&\f(CW\*(C`ev_timer\*(C'\fR sections in \*(L"\s-1WATCHER\s0 \s-1TYPES\s0\*(R".
-.SH "ABOUT LIBEV"
-.IX Header "ABOUT LIBEV"
-Libev is an event loop: you register interest in certain events (such as a
-file descriptor being readable or a timeout occurring), and it will manage
-these event sources and provide your program with events.
-.PP
-To do this, it must take more or less complete control over your process
-(or thread) by executing the \fIevent loop\fR handler, and will then
-communicate events via a callback mechanism.
-.PP
-You register interest in certain events by registering so-called \fIevent
-watchers\fR, which are relatively small C structures you initialise with the
-details of the event, and then hand it over to libev by \fIstarting\fR the
-watcher.
-.SS "\s-1FEATURES\s0"
-.IX Subsection "FEATURES"
-Libev supports \f(CW\*(C`select\*(C'\fR, \f(CW\*(C`poll\*(C'\fR, the Linux-specific \f(CW\*(C`epoll\*(C'\fR, the
-BSD-specific \f(CW\*(C`kqueue\*(C'\fR and the Solaris-specific event port mechanisms
-for file descriptor events (\f(CW\*(C`ev_io\*(C'\fR), the Linux \f(CW\*(C`inotify\*(C'\fR interface
-(for \f(CW\*(C`ev_stat\*(C'\fR), Linux eventfd/signalfd (for faster and cleaner
-inter-thread wakeup (\f(CW\*(C`ev_async\*(C'\fR)/signal handling (\f(CW\*(C`ev_signal\*(C'\fR)) relative
-timers (\f(CW\*(C`ev_timer\*(C'\fR), absolute timers with customised rescheduling
-(\f(CW\*(C`ev_periodic\*(C'\fR), synchronous signals (\f(CW\*(C`ev_signal\*(C'\fR), process status
-change events (\f(CW\*(C`ev_child\*(C'\fR), and event watchers dealing with the event
-loop mechanism itself (\f(CW\*(C`ev_idle\*(C'\fR, \f(CW\*(C`ev_embed\*(C'\fR, \f(CW\*(C`ev_prepare\*(C'\fR and
-\&\f(CW\*(C`ev_check\*(C'\fR watchers) as well as file watchers (\f(CW\*(C`ev_stat\*(C'\fR) and even
-limited support for fork events (\f(CW\*(C`ev_fork\*(C'\fR).
-.PP
-It also is quite fast (see this
-<benchmark> comparing it to libevent
-for example).
-.SS "\s-1CONVENTIONS\s0"
-.IX Subsection "CONVENTIONS"
-Libev is very configurable. In this manual the default (and most common)
-configuration will be described, which supports multiple event loops. For
-more info about various configuration options please have a look at
-\&\fB\s-1EMBED\s0\fR section in this manual. If libev was configured without support
-for multiple event loops, then all functions taking an initial argument of
-name \f(CW\*(C`loop\*(C'\fR (which is always of type \f(CW\*(C`struct ev_loop *\*(C'\fR) will not have
-this argument.
-.SS "\s-1TIME\s0 \s-1REPRESENTATION\s0"
-.IX Subsection "TIME REPRESENTATION"
-Libev represents time as a single floating point number, representing
-the (fractional) number of seconds since the (\s-1POSIX\s0) epoch (in practice
-somewhere near the beginning of 1970, details are complicated, don't
-ask). This type is called \f(CW\*(C`ev_tstamp\*(C'\fR, which is what you should use
-too. It usually aliases to the \f(CW\*(C`double\*(C'\fR type in C. When you need to do
-any calculations on it, you should treat it as some floating point value.
-.PP
-Unlike the name component \f(CW\*(C`stamp\*(C'\fR might indicate, it is also used for
-time differences (e.g. delays) throughout libev.
-.SH "ERROR HANDLING"
-.IX Header "ERROR HANDLING"
-Libev knows three classes of errors: operating system errors, usage errors
-and internal errors (bugs).
-.PP
-When libev catches an operating system error it cannot handle (for example
-a system call indicating a condition libev cannot fix), it calls the callback
-set via \f(CW\*(C`ev_set_syserr_cb\*(C'\fR, which is supposed to fix the problem or
-abort. The default is to print a diagnostic message and to call \f(CW\*(C`abort
-()\*(C'\fR.
-.PP
-When libev detects a usage error such as a negative timer interval, then
-it will print a diagnostic message and abort (via the \f(CW\*(C`assert\*(C'\fR mechanism,
-so \f(CW\*(C`NDEBUG\*(C'\fR will disable this checking): these are programming errors in
-the libev caller and need to be fixed there.
-.PP
-Libev also has a few internal error-checking \f(CW\*(C`assert\*(C'\fRions, and also has
-extensive consistency checking code. These do not trigger under normal
-circumstances, as they indicate either a bug in libev or worse.
-.SH "GLOBAL FUNCTIONS"
-.IX Header "GLOBAL FUNCTIONS"
-These functions can be called anytime, even before initialising the
-library in any way.
-.IP "ev_tstamp ev_time ()" 4
-.IX Item "ev_tstamp ev_time ()"
-Returns the current time as libev would use it. Please note that the
-\&\f(CW\*(C`ev_now\*(C'\fR function is usually faster and also often returns the timestamp
-you actually want to know. Also interesting is the combination of
-\&\f(CW\*(C`ev_update_now\*(C'\fR and \f(CW\*(C`ev_now\*(C'\fR.
-.IP "ev_sleep (ev_tstamp interval)" 4
-.IX Item "ev_sleep (ev_tstamp interval)"
-Sleep for the given interval: The current thread will be blocked until
-either it is interrupted or the given time interval has passed. Basically
-this is a sub-second-resolution \f(CW\*(C`sleep ()\*(C'\fR.
-.IP "int ev_version_major ()" 4
-.IX Item "int ev_version_major ()"
-.PD 0
-.IP "int ev_version_minor ()" 4
-.IX Item "int ev_version_minor ()"
-.PD
-You can find out the major and minor \s-1ABI\s0 version numbers of the library
-you linked against by calling the functions \f(CW\*(C`ev_version_major\*(C'\fR and
-\&\f(CW\*(C`ev_version_minor\*(C'\fR. If you want, you can compare against the global
-symbols \f(CW\*(C`EV_VERSION_MAJOR\*(C'\fR and \f(CW\*(C`EV_VERSION_MINOR\*(C'\fR, which specify the
-version of the library your program was compiled against.
-.Sp
-These version numbers refer to the \s-1ABI\s0 version of the library, not the
-release version.
-.Sp
-Usually, it's a good idea to terminate if the major versions mismatch,
-as this indicates an incompatible change. Minor versions are usually
-compatible to older versions, so a larger minor version alone is usually
-not a problem.
-.Sp
-Example: Make sure we haven't accidentally been linked against the wrong
-version (note, however, that this will not detect other \s-1ABI\s0 mismatches,
-such as \s-1LFS\s0 or reentrancy).
-.Sp
-.Vb 3
-\&   assert (("libev version mismatch",
-\&            ev_version_major () == EV_VERSION_MAJOR
-\&            && ev_version_minor () >= EV_VERSION_MINOR));
-.Ve
-.IP "unsigned int ev_supported_backends ()" 4
-.IX Item "unsigned int ev_supported_backends ()"
-Return the set of all backends (i.e. their corresponding \f(CW\*(C`EV_BACKEND_*\*(C'\fR
-value) compiled into this binary of libev (independent of their
-availability on the system you are running on). See \f(CW\*(C`ev_default_loop\*(C'\fR for
-a description of the set values.
-.Sp
-Example: make sure we have the epoll method, because yeah this is cool and
-a must have and can we have a torrent of it please!!!11
-.Sp
-.Vb 2
-\&   assert (("sorry, no epoll, no sex",
-\&            ev_supported_backends () & EVBACKEND_EPOLL));
-.Ve
-.IP "unsigned int ev_recommended_backends ()" 4
-.IX Item "unsigned int ev_recommended_backends ()"
-Return the set of all backends compiled into this binary of libev and
-also recommended for this platform, meaning it will work for most file
-descriptor types. This set is often smaller than the one returned by
-\&\f(CW\*(C`ev_supported_backends\*(C'\fR, as for example kqueue is broken on most BSDs
-and will not be auto-detected unless you explicitly request it (assuming
-you know what you are doing). This is the set of backends that libev will
-probe for if you specify no backends explicitly.
-.IP "unsigned int ev_embeddable_backends ()" 4
-.IX Item "unsigned int ev_embeddable_backends ()"
-Returns the set of backends that are embeddable in other event loops. This
-value is platform-specific but can include backends not available on the
-current system. To find which embeddable backends might be supported on
-the current system, you would need to look at \f(CW\*(C`ev_embeddable_backends ()
-& ev_supported_backends ()\*(C'\fR, likewise for recommended ones.
-.Sp
-See the description of \f(CW\*(C`ev_embed\*(C'\fR watchers for more info.
-.IP "ev_set_allocator (void *(*cb)(void *ptr, long size))" 4
-.IX Item "ev_set_allocator (void *(*cb)(void *ptr, long size))"
-Sets the allocation function to use (the prototype is similar \- the
-semantics are identical to the \f(CW\*(C`realloc\*(C'\fR C89/SuS/POSIX function). It is
-used to allocate and free memory (no surprises here). If it returns zero
-when memory needs to be allocated (\f(CW\*(C`size != 0\*(C'\fR), the library might abort
-or take some potentially destructive action.
-.Sp
-Since some systems (at least OpenBSD and Darwin) fail to implement
-correct \f(CW\*(C`realloc\*(C'\fR semantics, libev will use a wrapper around the system
-\&\f(CW\*(C`realloc\*(C'\fR and \f(CW\*(C`free\*(C'\fR functions by default.
-.Sp
-You could override this function in high-availability programs to, say,
-free some memory if it cannot allocate memory, to use a special allocator,
-or even to sleep a while and retry until some memory is available.
-.Sp
-Example: Replace the libev allocator with one that waits a bit and then
-retries (example requires a standards-compliant \f(CW\*(C`realloc\*(C'\fR).
-.Sp
-.Vb 6
-\&   static void *
-\&   persistent_realloc (void *ptr, size_t size)
-\&   {
-\&     for (;;)
-\&       {
-\&         void *newptr = realloc (ptr, size);
-\&
-\&         if (newptr)
-\&           return newptr;
-\&
-\&         sleep (60);
-\&       }
-\&   }
-\&
-\&   ...
-\&   ev_set_allocator (persistent_realloc);
-.Ve
-.IP "ev_set_syserr_cb (void (*cb)(const char *msg))" 4
-.IX Item "ev_set_syserr_cb (void (*cb)(const char *msg))"
-Set the callback function to call on a retryable system call error (such
-as failed select, poll, epoll_wait). The message is a printable string
-indicating the system call or subsystem causing the problem. If this
-callback is set, then libev will expect it to remedy the situation, no
-matter what, when it returns. That is, libev will generally retry the
-requested operation, or, if the condition doesn't go away, do bad stuff
-(such as abort).
-.Sp
-Example: This is basically the same thing that libev does internally, too.
-.Sp
-.Vb 6
-\&   static void
-\&   fatal_error (const char *msg)
-\&   {
-\&     perror (msg);
-\&     abort ();
-\&   }
-\&
-\&   ...
-\&   ev_set_syserr_cb (fatal_error);
-.Ve
-.IP "ev_feed_signal (int signum)" 4
-.IX Item "ev_feed_signal (int signum)"
-This function can be used to \*(L"simulate\*(R" a signal receive. It is completely
-safe to call this function at any time, from any context, including signal
-handlers or random threads.
-.Sp
-Its main use is to customise signal handling in your process, especially
-in the presence of threads. For example, you could block signals
-by default in all threads (and specifying \f(CW\*(C`EVFLAG_NOSIGMASK\*(C'\fR when
-creating any loops), and in one thread, use \f(CW\*(C`sigwait\*(C'\fR or any other
-mechanism to wait for signals, then \*(L"deliver\*(R" them to libev by calling
-\&\f(CW\*(C`ev_feed_signal\*(C'\fR.
-.SH "FUNCTIONS CONTROLLING EVENT LOOPS"
-.IX Header "FUNCTIONS CONTROLLING EVENT LOOPS"
-An event loop is described by a \f(CW\*(C`struct ev_loop *\*(C'\fR (the \f(CW\*(C`struct\*(C'\fR is
-\&\fInot\fR optional in this case unless libev 3 compatibility is disabled, as
-libev 3 had an \f(CW\*(C`ev_loop\*(C'\fR function colliding with the struct name).
-.PP
-The library knows two types of such loops, the \fIdefault\fR loop, which
-supports child process events, and dynamically created event loops which
-do not.
-.IP "struct ev_loop *ev_default_loop (unsigned int flags)" 4
-.IX Item "struct ev_loop *ev_default_loop (unsigned int flags)"
-This returns the \*(L"default\*(R" event loop object, which is what you should
-normally use when you just need \*(L"the event loop\*(R". Event loop objects and
-the \f(CW\*(C`flags\*(C'\fR parameter are described in more detail in the entry for
-\&\f(CW\*(C`ev_loop_new\*(C'\fR.
-.Sp
-If the default loop is already initialised then this function simply
-returns it (and ignores the flags. If that is troubling you, check
-\&\f(CW\*(C`ev_backend ()\*(C'\fR afterwards). Otherwise it will create it with the given
-flags, which should almost always be \f(CW0\fR, unless the caller is also the
-one calling \f(CW\*(C`ev_run\*(C'\fR or otherwise qualifies as \*(L"the main program\*(R".
-.Sp
-If you don't know what event loop to use, use the one returned from this
-function (or via the \f(CW\*(C`EV_DEFAULT\*(C'\fR macro).
-.Sp
-Note that this function is \fInot\fR thread-safe, so if you want to use it
-from multiple threads, you have to employ some kind of mutex (note also
-that this case is unlikely, as loops cannot be shared easily between
-threads anyway).
-.Sp
-The default loop is the only loop that can handle \f(CW\*(C`ev_child\*(C'\fR watchers,
-and to do this, it always registers a handler for \f(CW\*(C`SIGCHLD\*(C'\fR. If this is
-a problem for your application you can either create a dynamic loop with
-\&\f(CW\*(C`ev_loop_new\*(C'\fR which doesn't do that, or you can simply overwrite the
-\&\f(CW\*(C`SIGCHLD\*(C'\fR signal handler \fIafter\fR calling \f(CW\*(C`ev_default_init\*(C'\fR.
-.Sp
-Example: This is the most typical usage.
-.Sp
-.Vb 2
-\&   if (!ev_default_loop (0))
-\&     fatal ("could not initialise libev, bad $LIBEV_FLAGS in environment?");
-.Ve
-.Sp
-Example: Restrict libev to the select and poll backends, and do not allow
-environment settings to be taken into account:
-.Sp
-.Vb 1
-\&   ev_default_loop (EVBACKEND_POLL | EVBACKEND_SELECT | EVFLAG_NOENV);
-.Ve
-.IP "struct ev_loop *ev_loop_new (unsigned int flags)" 4
-.IX Item "struct ev_loop *ev_loop_new (unsigned int flags)"
-This will create and initialise a new event loop object. If the loop
-could not be initialised, returns false.
-.Sp
-This function is thread-safe, and one common way to use libev with
-threads is indeed to create one loop per thread, and using the default
-loop in the \*(L"main\*(R" or \*(L"initial\*(R" thread.
-.Sp
-The flags argument can be used to specify special behaviour or specific
-backends to use, and is usually specified as \f(CW0\fR (or \f(CW\*(C`EVFLAG_AUTO\*(C'\fR).
-.Sp
-The following flags are supported:
-.RS 4
-.ie n .IP """EVFLAG_AUTO""" 4
-.el .IP "\f(CWEVFLAG_AUTO\fR" 4
-.IX Item "EVFLAG_AUTO"
-The default flags value. Use this if you have no clue (it's the right
-thing, believe me).
-.ie n .IP """EVFLAG_NOENV""" 4
-.el .IP "\f(CWEVFLAG_NOENV\fR" 4
-.IX Item "EVFLAG_NOENV"
-If this flag bit is or'ed into the flag value (or the program runs setuid
-or setgid) then libev will \fInot\fR look at the environment variable
-\&\f(CW\*(C`LIBEV_FLAGS\*(C'\fR. Otherwise (the default), this environment variable will
-override the flags completely if it is found in the environment. This is
-useful to try out specific backends to test their performance, or to work
-around bugs.
-.ie n .IP """EVFLAG_FORKCHECK""" 4
-.el .IP "\f(CWEVFLAG_FORKCHECK\fR" 4
-.IX Item "EVFLAG_FORKCHECK"
-Instead of calling \f(CW\*(C`ev_loop_fork\*(C'\fR manually after a fork, you can also
-make libev check for a fork in each iteration by enabling this flag.
-.Sp
-This works by calling \f(CW\*(C`getpid ()\*(C'\fR on every iteration of the loop,
-and thus this might slow down your event loop if you do a lot of loop
-iterations and little real work, but is usually not noticeable (on my
-GNU/Linux system for example, \f(CW\*(C`getpid\*(C'\fR is actually a simple 5\-insn sequence
-without a system call and thus \fIvery\fR fast, but my GNU/Linux system also has
-\&\f(CW\*(C`pthread_atfork\*(C'\fR which is even faster).
-.Sp
-The big advantage of this flag is that you can forget about fork (and
-forget about forgetting to tell libev about forking) when you use this
-flag.
-.Sp
-This flag setting cannot be overridden or specified in the \f(CW\*(C`LIBEV_FLAGS\*(C'\fR
-environment variable.
-.ie n .IP """EVFLAG_NOINOTIFY""" 4
-.el .IP "\f(CWEVFLAG_NOINOTIFY\fR" 4
-.IX Item "EVFLAG_NOINOTIFY"
-When this flag is specified, then libev will not attempt to use the
-\&\fIinotify\fR \s-1API\s0 for its \f(CW\*(C`ev_stat\*(C'\fR watchers. Apart from debugging and
-testing, this flag can be useful to conserve inotify file descriptors, as
-otherwise each loop using \f(CW\*(C`ev_stat\*(C'\fR watchers consumes one inotify handle.
-.ie n .IP """EVFLAG_SIGNALFD""" 4
-.el .IP "\f(CWEVFLAG_SIGNALFD\fR" 4
-.IX Item "EVFLAG_SIGNALFD"
-When this flag is specified, then libev will attempt to use the
-\&\fIsignalfd\fR \s-1API\s0 for its \f(CW\*(C`ev_signal\*(C'\fR (and \f(CW\*(C`ev_child\*(C'\fR) watchers. This \s-1API\s0
-delivers signals synchronously, which makes it both faster and might make
-it possible to get the queued signal data. It can also simplify signal
-handling with threads, as long as you properly block signals in your
-threads that are not interested in handling them.
-.Sp
-Signalfd will not be used by default as this changes your signal mask, and
-there are a lot of shoddy libraries and programs (glib's threadpool for
-example) that can't properly initialise their signal masks.
-.ie n .IP """EVFLAG_NOSIGMASK""" 4
-.el .IP "\f(CWEVFLAG_NOSIGMASK\fR" 4
-.IX Item "EVFLAG_NOSIGMASK"
-When this flag is specified, then libev will avoid to modify the signal
-mask. Specifically, this means you ahve to make sure signals are unblocked
-when you want to receive them.
-.Sp
-This behaviour is useful when you want to do your own signal handling, or
-want to handle signals only in specific threads and want to avoid libev
-unblocking the signals.
-.Sp
-It's also required by \s-1POSIX\s0 in a threaded program, as libev calls
-\&\f(CW\*(C`sigprocmask\*(C'\fR, whose behaviour is officially unspecified.
-.Sp
-This flag's behaviour will become the default in future versions of libev.
-.ie n .IP """EVBACKEND_SELECT""  (value 1, portable select backend)" 4
-.el .IP "\f(CWEVBACKEND_SELECT\fR  (value 1, portable select backend)" 4
-.IX Item "EVBACKEND_SELECT  (value 1, portable select backend)"
-This is your standard \fIselect\fR\|(2) backend. Not \fIcompletely\fR standard, as
-libev tries to roll its own fd_set with no limits on the number of fds,
-but if that fails, expect a fairly low limit on the number of fds when
-using this backend. It doesn't scale too well (O(highest_fd)), but its
-usually the fastest backend for a low number of (low-numbered :) fds.
-.Sp
-To get good performance out of this backend you need a high amount of
-parallelism (most of the file descriptors should be busy). If you are
-writing a server, you should \f(CW\*(C`accept ()\*(C'\fR in a loop to accept as many
-connections as possible during one iteration. You might also want to have
-a look at \f(CW\*(C`ev_set_io_collect_interval ()\*(C'\fR to increase the amount of
-readiness notifications you get per iteration.
-.Sp
-This backend maps \f(CW\*(C`EV_READ\*(C'\fR to the \f(CW\*(C`readfds\*(C'\fR set and \f(CW\*(C`EV_WRITE\*(C'\fR to the
-\&\f(CW\*(C`writefds\*(C'\fR set (and to work around Microsoft Windows bugs, also onto the
-\&\f(CW\*(C`exceptfds\*(C'\fR set on that platform).
-.ie n .IP """EVBACKEND_POLL""    (value 2, poll backend, available everywhere except on windows)" 4
-.el .IP "\f(CWEVBACKEND_POLL\fR    (value 2, poll backend, available everywhere except on windows)" 4
-.IX Item "EVBACKEND_POLL    (value 2, poll backend, available everywhere except on windows)"
-And this is your standard \fIpoll\fR\|(2) backend. It's more complicated
-than select, but handles sparse fds better and has no artificial
-limit on the number of fds you can use (except it will slow down
-considerably with a lot of inactive fds). It scales similarly to select,
-i.e. O(total_fds). See the entry for \f(CW\*(C`EVBACKEND_SELECT\*(C'\fR, above, for
-performance tips.
-.Sp
-This backend maps \f(CW\*(C`EV_READ\*(C'\fR to \f(CW\*(C`POLLIN | POLLERR | POLLHUP\*(C'\fR, and
-\&\f(CW\*(C`EV_WRITE\*(C'\fR to \f(CW\*(C`POLLOUT | POLLERR | POLLHUP\*(C'\fR.
-.ie n .IP """EVBACKEND_EPOLL""   (value 4, Linux)" 4
-.el .IP "\f(CWEVBACKEND_EPOLL\fR   (value 4, Linux)" 4
-.IX Item "EVBACKEND_EPOLL   (value 4, Linux)"
-Use the linux-specific \fIepoll\fR\|(7) interface (for both pre\- and post\-2.6.9
-kernels).
-.Sp
-For few fds, this backend is a bit little slower than poll and select,
-but it scales phenomenally better. While poll and select usually scale
-like O(total_fds) where n is the total number of fds (or the highest fd),
-epoll scales either O(1) or O(active_fds).
-.Sp
-The epoll mechanism deserves honorable mention as the most misdesigned
-of the more advanced event mechanisms: mere annoyances include silently
-dropping file descriptors, requiring a system call per change per file
-descriptor (and unnecessary guessing of parameters), problems with dup,
-returning before the timeout value, resulting in additional iterations
-(and only giving 5ms accuracy while select on the same platform gives
-0.1ms) and so on. The biggest issue is fork races, however \- if a program
-forks then \fIboth\fR parent and child process have to recreate the epoll
-set, which can take considerable time (one syscall per file descriptor)
-and is of course hard to detect.
-.Sp
-Epoll is also notoriously buggy \- embedding epoll fds \fIshould\fR work, but
-of course \fIdoesn't\fR, and epoll just loves to report events for totally
-\&\fIdifferent\fR file descriptors (even already closed ones, so one cannot
-even remove them from the set) than registered in the set (especially
-on \s-1SMP\s0 systems). Libev tries to counter these spurious notifications by
-employing an additional generation counter and comparing that against the
-events to filter out spurious ones, recreating the set when required. Last
-not least, it also refuses to work with some file descriptors which work
-perfectly fine with \f(CW\*(C`select\*(C'\fR (files, many character devices...).
-.Sp
-Epoll is truly the train wreck analog among event poll mechanisms,
-a frankenpoll, cobbled together in a hurry, no thought to design or
-interaction with others.
-.Sp
-While stopping, setting and starting an I/O watcher in the same iteration
-will result in some caching, there is still a system call per such
-incident (because the same \fIfile descriptor\fR could point to a different
-\&\fIfile description\fR now), so its best to avoid that. Also, \f(CW\*(C`dup ()\*(C'\fR'ed
-file descriptors might not work very well if you register events for both
-file descriptors.
-.Sp
-Best performance from this backend is achieved by not unregistering all
-watchers for a file descriptor until it has been closed, if possible,
-i.e. keep at least one watcher active per fd at all times. Stopping and
-starting a watcher (without re-setting it) also usually doesn't cause
-extra overhead. A fork can both result in spurious notifications as well
-as in libev having to destroy and recreate the epoll object, which can
-take considerable time and thus should be avoided.
-.Sp
-All this means that, in practice, \f(CW\*(C`EVBACKEND_SELECT\*(C'\fR can be as fast or
-faster than epoll for maybe up to a hundred file descriptors, depending on
-the usage. So sad.
-.Sp
-While nominally embeddable in other event loops, this feature is broken in
-all kernel versions tested so far.
-.Sp
-This backend maps \f(CW\*(C`EV_READ\*(C'\fR and \f(CW\*(C`EV_WRITE\*(C'\fR in the same way as
-\&\f(CW\*(C`EVBACKEND_POLL\*(C'\fR.
-.ie n .IP """EVBACKEND_KQUEUE""  (value 8, most \s-1BSD\s0 clones)" 4
-.el .IP "\f(CWEVBACKEND_KQUEUE\fR  (value 8, most \s-1BSD\s0 clones)" 4
-.IX Item "EVBACKEND_KQUEUE  (value 8, most BSD clones)"
-Kqueue deserves special mention, as at the time of this writing, it
-was broken on all BSDs except NetBSD (usually it doesn't work reliably
-with anything but sockets and pipes, except on Darwin, where of course
-it's completely useless). Unlike epoll, however, whose brokenness
-is by design, these kqueue bugs can (and eventually will) be fixed
-without \s-1API\s0 changes to existing programs. For this reason it's not being
-\&\*(L"auto-detected\*(R" unless you explicitly specify it in the flags (i.e. using
-\&\f(CW\*(C`EVBACKEND_KQUEUE\*(C'\fR) or libev was compiled on a known-to-be-good (\-enough)
-system like NetBSD.
-.Sp
-You still can embed kqueue into a normal poll or select backend and use it
-only for sockets (after having made sure that sockets work with kqueue on
-the target platform). See \f(CW\*(C`ev_embed\*(C'\fR watchers for more info.
-.Sp
-It scales in the same way as the epoll backend, but the interface to the
-kernel is more efficient (which says nothing about its actual speed, of
-course). While stopping, setting and starting an I/O watcher does never
-cause an extra system call as with \f(CW\*(C`EVBACKEND_EPOLL\*(C'\fR, it still adds up to
-two event changes per incident. Support for \f(CW\*(C`fork ()\*(C'\fR is very bad (but
-sane, unlike epoll) and it drops fds silently in similarly hard-to-detect
-cases
-.Sp
-This backend usually performs well under most conditions.
-.Sp
-While nominally embeddable in other event loops, this doesn't work
-everywhere, so you might need to test for this. And since it is broken
-almost everywhere, you should only use it when you have a lot of sockets
-(for which it usually works), by embedding it into another event loop
-(e.g. \f(CW\*(C`EVBACKEND_SELECT\*(C'\fR or \f(CW\*(C`EVBACKEND_POLL\*(C'\fR (but \f(CW\*(C`poll\*(C'\fR is of course
-also broken on \s-1OS\s0 X)) and, did I mention it, using it only for sockets.
-.Sp
-This backend maps \f(CW\*(C`EV_READ\*(C'\fR into an \f(CW\*(C`EVFILT_READ\*(C'\fR kevent with
-\&\f(CW\*(C`NOTE_EOF\*(C'\fR, and \f(CW\*(C`EV_WRITE\*(C'\fR into an \f(CW\*(C`EVFILT_WRITE\*(C'\fR kevent with
-\&\f(CW\*(C`NOTE_EOF\*(C'\fR.
-.ie n .IP """EVBACKEND_DEVPOLL"" (value 16, Solaris 8)" 4
-.el .IP "\f(CWEVBACKEND_DEVPOLL\fR (value 16, Solaris 8)" 4
-.IX Item "EVBACKEND_DEVPOLL (value 16, Solaris 8)"
-This is not implemented yet (and might never be, unless you send me an
-implementation). According to reports, \f(CW\*(C`/dev/poll\*(C'\fR only supports sockets
-and is not embeddable, which would limit the usefulness of this backend
-immensely.
-.ie n .IP """EVBACKEND_PORT""    (value 32, Solaris 10)" 4
-.el .IP "\f(CWEVBACKEND_PORT\fR    (value 32, Solaris 10)" 4
-.IX Item "EVBACKEND_PORT    (value 32, Solaris 10)"
-This uses the Solaris 10 event port mechanism. As with everything on Solaris,
-it's really slow, but it still scales very well (O(active_fds)).
-.Sp
-While this backend scales well, it requires one system call per active
-file descriptor per loop iteration. For small and medium numbers of file
-descriptors a \*(L"slow\*(R" \f(CW\*(C`EVBACKEND_SELECT\*(C'\fR or \f(CW\*(C`EVBACKEND_POLL\*(C'\fR backend
-might perform better.
-.Sp
-On the positive side, this backend actually performed fully to
-specification in all tests and is fully embeddable, which is a rare feat
-among the OS-specific backends (I vastly prefer correctness over speed
-hacks).
-.Sp
-On the negative side, the interface is \fIbizarre\fR \- so bizarre that
-even sun itself gets it wrong in their code examples: The event polling
-function sometimes returning events to the caller even though an error
-occurred, but with no indication whether it has done so or not (yes, it's
-even documented that way) \- deadly for edge-triggered interfaces where
-you absolutely have to know whether an event occurred or not because you
-have to re-arm the watcher.
-.Sp
-Fortunately libev seems to be able to work around these idiocies.
-.Sp
-This backend maps \f(CW\*(C`EV_READ\*(C'\fR and \f(CW\*(C`EV_WRITE\*(C'\fR in the same way as
-\&\f(CW\*(C`EVBACKEND_POLL\*(C'\fR.
-.ie n .IP """EVBACKEND_ALL""" 4
-.el .IP "\f(CWEVBACKEND_ALL\fR" 4
-.IX Item "EVBACKEND_ALL"
-Try all backends (even potentially broken ones that wouldn't be tried
-with \f(CW\*(C`EVFLAG_AUTO\*(C'\fR). Since this is a mask, you can do stuff such as
-\&\f(CW\*(C`EVBACKEND_ALL & ~EVBACKEND_KQUEUE\*(C'\fR.
-.Sp
-It is definitely not recommended to use this flag, use whatever
-\&\f(CW\*(C`ev_recommended_backends ()\*(C'\fR returns, or simply do not specify a backend
-at all.
-.ie n .IP """EVBACKEND_MASK""" 4
-.el .IP "\f(CWEVBACKEND_MASK\fR" 4
-.IX Item "EVBACKEND_MASK"
-Not a backend at all, but a mask to select all backend bits from a
-\&\f(CW\*(C`flags\*(C'\fR value, in case you want to mask out any backends from a flags
-value (e.g. when modifying the \f(CW\*(C`LIBEV_FLAGS\*(C'\fR environment variable).
-.RE
-.RS 4
-.Sp
-If one or more of the backend flags are or'ed into the flags value,
-then only these backends will be tried (in the reverse order as listed
-here). If none are specified, all backends in \f(CW\*(C`ev_recommended_backends
-()\*(C'\fR will be tried.
-.Sp
-Example: Try to create a event loop that uses epoll and nothing else.
-.Sp
-.Vb 3
-\&   struct ev_loop *epoller = ev_loop_new (EVBACKEND_EPOLL | EVFLAG_NOENV);
-\&   if (!epoller)
-\&     fatal ("no epoll found here, maybe it hides under your chair");
-.Ve
-.Sp
-Example: Use whatever libev has to offer, but make sure that kqueue is
-used if available.
-.Sp
-.Vb 1
-\&   struct ev_loop *loop = ev_loop_new (ev_recommended_backends () | EVBACKEND_KQUEUE);
-.Ve
-.RE
-.IP "ev_loop_destroy (loop)" 4
-.IX Item "ev_loop_destroy (loop)"
-Destroys an event loop object (frees all memory and kernel state
-etc.). None of the active event watchers will be stopped in the normal
-sense, so e.g. \f(CW\*(C`ev_is_active\*(C'\fR might still return true. It is your
-responsibility to either stop all watchers cleanly yourself \fIbefore\fR
-calling this function, or cope with the fact afterwards (which is usually
-the easiest thing, you can just ignore the watchers and/or \f(CW\*(C`free ()\*(C'\fR them
-for example).
-.Sp
-Note that certain global state, such as signal state (and installed signal
-handlers), will not be freed by this function, and related watchers (such
-as signal and child watchers) would need to be stopped manually.
-.Sp
-This function is normally used on loop objects allocated by
-\&\f(CW\*(C`ev_loop_new\*(C'\fR, but it can also be used on the default loop returned by
-\&\f(CW\*(C`ev_default_loop\*(C'\fR, in which case it is not thread-safe.
-.Sp
-Note that it is not advisable to call this function on the default loop
-except in the rare occasion where you really need to free its resources.
-If you need dynamically allocated loops it is better to use \f(CW\*(C`ev_loop_new\*(C'\fR
-and \f(CW\*(C`ev_loop_destroy\*(C'\fR.
-.IP "ev_loop_fork (loop)" 4
-.IX Item "ev_loop_fork (loop)"
-This function sets a flag that causes subsequent \f(CW\*(C`ev_run\*(C'\fR iterations to
-reinitialise the kernel state for backends that have one. Despite the
-name, you can call it anytime, but it makes most sense after forking, in
-the child process. You \fImust\fR call it (or use \f(CW\*(C`EVFLAG_FORKCHECK\*(C'\fR) in the
-child before resuming or calling \f(CW\*(C`ev_run\*(C'\fR.
-.Sp
-Again, you \fIhave\fR to call it on \fIany\fR loop that you want to re-use after 
-a fork, \fIeven if you do not plan to use the loop in the parent\fR. This is
-because some kernel interfaces *cough* \fIkqueue\fR *cough* do funny things
-during fork.
-.Sp
-On the other hand, you only need to call this function in the child
-process if and only if you want to use the event loop in the child. If
-you just fork+exec or create a new loop in the child, you don't have to
-call it at all (in fact, \f(CW\*(C`epoll\*(C'\fR is so badly broken that it makes a
-difference, but libev will usually detect this case on its own and do a
-costly reset of the backend).
-.Sp
-The function itself is quite fast and it's usually not a problem to call
-it just in case after a fork.
-.Sp
-Example: Automate calling \f(CW\*(C`ev_loop_fork\*(C'\fR on the default loop when
-using pthreads.
-.Sp
-.Vb 5
-\&   static void
-\&   post_fork_child (void)
-\&   {
-\&     ev_loop_fork (EV_DEFAULT);
-\&   }
-\&
-\&   ...
-\&   pthread_atfork (0, 0, post_fork_child);
-.Ve
-.IP "int ev_is_default_loop (loop)" 4
-.IX Item "int ev_is_default_loop (loop)"
-Returns true when the given loop is, in fact, the default loop, and false
-otherwise.
-.IP "unsigned int ev_iteration (loop)" 4
-.IX Item "unsigned int ev_iteration (loop)"
-Returns the current iteration count for the event loop, which is identical
-to the number of times libev did poll for new events. It starts at \f(CW0\fR
-and happily wraps around with enough iterations.
-.Sp
-This value can sometimes be useful as a generation counter of sorts (it
-\&\*(L"ticks\*(R" the number of loop iterations), as it roughly corresponds with
-\&\f(CW\*(C`ev_prepare\*(C'\fR and \f(CW\*(C`ev_check\*(C'\fR calls \- and is incremented between the
-prepare and check phases.
-.IP "unsigned int ev_depth (loop)" 4
-.IX Item "unsigned int ev_depth (loop)"
-Returns the number of times \f(CW\*(C`ev_run\*(C'\fR was entered minus the number of
-times \f(CW\*(C`ev_run\*(C'\fR was exited normally, in other words, the recursion depth.
-.Sp
-Outside \f(CW\*(C`ev_run\*(C'\fR, this number is zero. In a callback, this number is
-\&\f(CW1\fR, unless \f(CW\*(C`ev_run\*(C'\fR was invoked recursively (or from another thread),
-in which case it is higher.
-.Sp
-Leaving \f(CW\*(C`ev_run\*(C'\fR abnormally (setjmp/longjmp, cancelling the thread,
-throwing an exception etc.), doesn't count as \*(L"exit\*(R" \- consider this
-as a hint to avoid such ungentleman-like behaviour unless it's really
-convenient, in which case it is fully supported.
-.IP "unsigned int ev_backend (loop)" 4
-.IX Item "unsigned int ev_backend (loop)"
-Returns one of the \f(CW\*(C`EVBACKEND_*\*(C'\fR flags indicating the event backend in
-use.
-.IP "ev_tstamp ev_now (loop)" 4
-.IX Item "ev_tstamp ev_now (loop)"
-Returns the current \*(L"event loop time\*(R", which is the time the event loop
-received events and started processing them. This timestamp does not
-change as long as callbacks are being processed, and this is also the base
-time used for relative timers. You can treat it as the timestamp of the
-event occurring (or more correctly, libev finding out about it).
-.IP "ev_now_update (loop)" 4
-.IX Item "ev_now_update (loop)"
-Establishes the current time by querying the kernel, updating the time
-returned by \f(CW\*(C`ev_now ()\*(C'\fR in the progress. This is a costly operation and
-is usually done automatically within \f(CW\*(C`ev_run ()\*(C'\fR.
-.Sp
-This function is rarely useful, but when some event callback runs for a
-very long time without entering the event loop, updating libev's idea of
-the current time is a good idea.
-.Sp
-See also \*(L"The special problem of time updates\*(R" in the \f(CW\*(C`ev_timer\*(C'\fR section.
-.IP "ev_suspend (loop)" 4
-.IX Item "ev_suspend (loop)"
-.PD 0
-.IP "ev_resume (loop)" 4
-.IX Item "ev_resume (loop)"
-.PD
-These two functions suspend and resume an event loop, for use when the
-loop is not used for a while and timeouts should not be processed.
-.Sp
-A typical use case would be an interactive program such as a game:  When
-the user presses \f(CW\*(C`^Z\*(C'\fR to suspend the game and resumes it an hour later it
-would be best to handle timeouts as if no time had actually passed while
-the program was suspended. This can be achieved by calling \f(CW\*(C`ev_suspend\*(C'\fR
-in your \f(CW\*(C`SIGTSTP\*(C'\fR handler, sending yourself a \f(CW\*(C`SIGSTOP\*(C'\fR and calling
-\&\f(CW\*(C`ev_resume\*(C'\fR directly afterwards to resume timer processing.
-.Sp
-Effectively, all \f(CW\*(C`ev_timer\*(C'\fR watchers will be delayed by the time spend
-between \f(CW\*(C`ev_suspend\*(C'\fR and \f(CW\*(C`ev_resume\*(C'\fR, and all \f(CW\*(C`ev_periodic\*(C'\fR watchers
-will be rescheduled (that is, they will lose any events that would have
-occurred while suspended).
-.Sp
-After calling \f(CW\*(C`ev_suspend\*(C'\fR you \fBmust not\fR call \fIany\fR function on the
-given loop other than \f(CW\*(C`ev_resume\*(C'\fR, and you \fBmust not\fR call \f(CW\*(C`ev_resume\*(C'\fR
-without a previous call to \f(CW\*(C`ev_suspend\*(C'\fR.
-.Sp
-Calling \f(CW\*(C`ev_suspend\*(C'\fR/\f(CW\*(C`ev_resume\*(C'\fR has the side effect of updating the
-event loop time (see \f(CW\*(C`ev_now_update\*(C'\fR).
-.IP "ev_run (loop, int flags)" 4
-.IX Item "ev_run (loop, int flags)"
-Finally, this is it, the event handler. This function usually is called
-after you have initialised all your watchers and you want to start
-handling events. It will ask the operating system for any new events, call
-the watcher callbacks, an then repeat the whole process indefinitely: This
-is why event loops are called \fIloops\fR.
-.Sp
-If the flags argument is specified as \f(CW0\fR, it will keep handling events
-until either no event watchers are active anymore or \f(CW\*(C`ev_break\*(C'\fR was
-called.
-.Sp
-Please note that an explicit \f(CW\*(C`ev_break\*(C'\fR is usually better than
-relying on all watchers to be stopped when deciding when a program has
-finished (especially in interactive programs), but having a program
-that automatically loops as long as it has to and no longer by virtue
-of relying on its watchers stopping correctly, that is truly a thing of
-beauty.
-.Sp
-This function is also \fImostly\fR exception-safe \- you can break out of
-a \f(CW\*(C`ev_run\*(C'\fR call by calling \f(CW\*(C`longjmp\*(C'\fR in a callback, throwing a \*(C+
-exception and so on. This does not decrement the \f(CW\*(C`ev_depth\*(C'\fR value, nor
-will it clear any outstanding \f(CW\*(C`EVBREAK_ONE\*(C'\fR breaks.
-.Sp
-A flags value of \f(CW\*(C`EVRUN_NOWAIT\*(C'\fR will look for new events, will handle
-those events and any already outstanding ones, but will not wait and
-block your process in case there are no events and will return after one
-iteration of the loop. This is sometimes useful to poll and handle new
-events while doing lengthy calculations, to keep the program responsive.
-.Sp
-A flags value of \f(CW\*(C`EVRUN_ONCE\*(C'\fR will look for new events (waiting if
-necessary) and will handle those and any already outstanding ones. It
-will block your process until at least one new event arrives (which could
-be an event internal to libev itself, so there is no guarantee that a
-user-registered callback will be called), and will return after one
-iteration of the loop.
-.Sp
-This is useful if you are waiting for some external event in conjunction
-with something not expressible using other libev watchers (i.e. "roll your
-own \f(CW\*(C`ev_run\*(C'\fR"). However, a pair of \f(CW\*(C`ev_prepare\*(C'\fR/\f(CW\*(C`ev_check\*(C'\fR watchers is
-usually a better approach for this kind of thing.
-.Sp
-Here are the gory details of what \f(CW\*(C`ev_run\*(C'\fR does:
-.Sp
-.Vb 10
-\&   \- Increment loop depth.
-\&   \- Reset the ev_break status.
-\&   \- Before the first iteration, call any pending watchers.
-\&   LOOP:
-\&   \- If EVFLAG_FORKCHECK was used, check for a fork.
-\&   \- If a fork was detected (by any means), queue and call all fork watchers.
-\&   \- Queue and call all prepare watchers.
-\&   \- If ev_break was called, goto FINISH.
-\&   \- If we have been forked, detach and recreate the kernel state
-\&     as to not disturb the other process.
-\&   \- Update the kernel state with all outstanding changes.
-\&   \- Update the "event loop time" (ev_now ()).
-\&   \- Calculate for how long to sleep or block, if at all
-\&     (active idle watchers, EVRUN_NOWAIT or not having
-\&     any active watchers at all will result in not sleeping).
-\&   \- Sleep if the I/O and timer collect interval say so.
-\&   \- Increment loop iteration counter.
-\&   \- Block the process, waiting for any events.
-\&   \- Queue all outstanding I/O (fd) events.
-\&   \- Update the "event loop time" (ev_now ()), and do time jump adjustments.
-\&   \- Queue all expired timers.
-\&   \- Queue all expired periodics.
-\&   \- Queue all idle watchers with priority higher than that of pending events.
-\&   \- Queue all check watchers.
-\&   \- Call all queued watchers in reverse order (i.e. check watchers first).
-\&     Signals and child watchers are implemented as I/O watchers, and will
-\&     be handled here by queueing them when their watcher gets executed.
-\&   \- If ev_break has been called, or EVRUN_ONCE or EVRUN_NOWAIT
-\&     were used, or there are no active watchers, goto FINISH, otherwise
-\&     continue with step LOOP.
-\&   FINISH:
-\&   \- Reset the ev_break status iff it was EVBREAK_ONE.
-\&   \- Decrement the loop depth.
-\&   \- Return.
-.Ve
-.Sp
-Example: Queue some jobs and then loop until no events are outstanding
-anymore.
-.Sp
-.Vb 4
-\&   ... queue jobs here, make sure they register event watchers as long
-\&   ... as they still have work to do (even an idle watcher will do..)
-\&   ev_run (my_loop, 0);
-\&   ... jobs done or somebody called break. yeah!
-.Ve
-.IP "ev_break (loop, how)" 4
-.IX Item "ev_break (loop, how)"
-Can be used to make a call to \f(CW\*(C`ev_run\*(C'\fR return early (but only after it
-has processed all outstanding events). The \f(CW\*(C`how\*(C'\fR argument must be either
-\&\f(CW\*(C`EVBREAK_ONE\*(C'\fR, which will make the innermost \f(CW\*(C`ev_run\*(C'\fR call return, or
-\&\f(CW\*(C`EVBREAK_ALL\*(C'\fR, which will make all nested \f(CW\*(C`ev_run\*(C'\fR calls return.
-.Sp
-This \*(L"break state\*(R" will be cleared on the next call to \f(CW\*(C`ev_run\*(C'\fR.
-.Sp
-It is safe to call \f(CW\*(C`ev_break\*(C'\fR from outside any \f(CW\*(C`ev_run\*(C'\fR calls, too, in
-which case it will have no effect.
-.IP "ev_ref (loop)" 4
-.IX Item "ev_ref (loop)"
-.PD 0
-.IP "ev_unref (loop)" 4
-.IX Item "ev_unref (loop)"
-.PD
-Ref/unref can be used to add or remove a reference count on the event
-loop: Every watcher keeps one reference, and as long as the reference
-count is nonzero, \f(CW\*(C`ev_run\*(C'\fR will not return on its own.
-.Sp
-This is useful when you have a watcher that you never intend to
-unregister, but that nevertheless should not keep \f(CW\*(C`ev_run\*(C'\fR from
-returning. In such a case, call \f(CW\*(C`ev_unref\*(C'\fR after starting, and \f(CW\*(C`ev_ref\*(C'\fR
-before stopping it.
-.Sp
-As an example, libev itself uses this for its internal signal pipe: It
-is not visible to the libev user and should not keep \f(CW\*(C`ev_run\*(C'\fR from
-exiting if no event watchers registered by it are active. It is also an
-excellent way to do this for generic recurring timers or from within
-third-party libraries. Just remember to \fIunref after start\fR and \fIref
-before stop\fR (but only if the watcher wasn't active before, or was active
-before, respectively. Note also that libev might stop watchers itself
-(e.g. non-repeating timers) in which case you have to \f(CW\*(C`ev_ref\*(C'\fR
-in the callback).
-.Sp
-Example: Create a signal watcher, but keep it from keeping \f(CW\*(C`ev_run\*(C'\fR
-running when nothing else is active.
-.Sp
-.Vb 4
-\&   ev_signal exitsig;
-\&   ev_signal_init (&exitsig, sig_cb, SIGINT);
-\&   ev_signal_start (loop, &exitsig);
-\&   ev_unref (loop);
-.Ve
-.Sp
-Example: For some weird reason, unregister the above signal handler again.
-.Sp
-.Vb 2
-\&   ev_ref (loop);
-\&   ev_signal_stop (loop, &exitsig);
-.Ve
-.IP "ev_set_io_collect_interval (loop, ev_tstamp interval)" 4
-.IX Item "ev_set_io_collect_interval (loop, ev_tstamp interval)"
-.PD 0
-.IP "ev_set_timeout_collect_interval (loop, ev_tstamp interval)" 4
-.IX Item "ev_set_timeout_collect_interval (loop, ev_tstamp interval)"
-.PD
-These advanced functions influence the time that libev will spend waiting
-for events. Both time intervals are by default \f(CW0\fR, meaning that libev
-will try to invoke timer/periodic callbacks and I/O callbacks with minimum
-latency.
-.Sp
-Setting these to a higher value (the \f(CW\*(C`interval\*(C'\fR \fImust\fR be >= \f(CW0\fR)
-allows libev to delay invocation of I/O and timer/periodic callbacks
-to increase efficiency of loop iterations (or to increase power-saving
-opportunities).
-.Sp
-The idea is that sometimes your program runs just fast enough to handle
-one (or very few) event(s) per loop iteration. While this makes the
-program responsive, it also wastes a lot of \s-1CPU\s0 time to poll for new
-events, especially with backends like \f(CW\*(C`select ()\*(C'\fR which have a high
-overhead for the actual polling but can deliver many events at once.
-.Sp
-By setting a higher \fIio collect interval\fR you allow libev to spend more
-time collecting I/O events, so you can handle more events per iteration,
-at the cost of increasing latency. Timeouts (both \f(CW\*(C`ev_periodic\*(C'\fR and
-\&\f(CW\*(C`ev_timer\*(C'\fR) will be not affected. Setting this to a non-null value will
-introduce an additional \f(CW\*(C`ev_sleep ()\*(C'\fR call into most loop iterations. The
-sleep time ensures that libev will not poll for I/O events more often then
-once per this interval, on average.
-.Sp
-Likewise, by setting a higher \fItimeout collect interval\fR you allow libev
-to spend more time collecting timeouts, at the expense of increased
-latency/jitter/inexactness (the watcher callback will be called
-later). \f(CW\*(C`ev_io\*(C'\fR watchers will not be affected. Setting this to a non-null
-value will not introduce any overhead in libev.
-.Sp
-Many (busy) programs can usually benefit by setting the I/O collect
-interval to a value near \f(CW0.1\fR or so, which is often enough for
-interactive servers (of course not for games), likewise for timeouts. It
-usually doesn't make much sense to set it to a lower value than \f(CW0.01\fR,
-as this approaches the timing granularity of most systems. Note that if
-you do transactions with the outside world and you can't increase the
-parallelity, then this setting will limit your transaction rate (if you
-need to poll once per transaction and the I/O collect interval is 0.01,
-then you can't do more than 100 transactions per second).
-.Sp
-Setting the \fItimeout collect interval\fR can improve the opportunity for
-saving power, as the program will \*(L"bundle\*(R" timer callback invocations that
-are \*(L"near\*(R" in time together, by delaying some, thus reducing the number of
-times the process sleeps and wakes up again. Another useful technique to
-reduce iterations/wake\-ups is to use \f(CW\*(C`ev_periodic\*(C'\fR watchers and make sure
-they fire on, say, one-second boundaries only.
-.Sp
-Example: we only need 0.1s timeout granularity, and we wish not to poll
-more often than 100 times per second:
-.Sp
-.Vb 2
-\&   ev_set_timeout_collect_interval (EV_DEFAULT_UC_ 0.1);
-\&   ev_set_io_collect_interval (EV_DEFAULT_UC_ 0.01);
-.Ve
-.IP "ev_invoke_pending (loop)" 4
-.IX Item "ev_invoke_pending (loop)"
-This call will simply invoke all pending watchers while resetting their
-pending state. Normally, \f(CW\*(C`ev_run\*(C'\fR does this automatically when required,
-but when overriding the invoke callback this call comes handy. This
-function can be invoked from a watcher \- this can be useful for example
-when you want to do some lengthy calculation and want to pass further
-event handling to another thread (you still have to make sure only one
-thread executes within \f(CW\*(C`ev_invoke_pending\*(C'\fR or \f(CW\*(C`ev_run\*(C'\fR of course).
-.IP "int ev_pending_count (loop)" 4
-.IX Item "int ev_pending_count (loop)"
-Returns the number of pending watchers \- zero indicates that no watchers
-are pending.
-.IP "ev_set_invoke_pending_cb (loop, void (*invoke_pending_cb)(\s-1EV_P\s0))" 4
-.IX Item "ev_set_invoke_pending_cb (loop, void (*invoke_pending_cb)(EV_P))"
-This overrides the invoke pending functionality of the loop: Instead of
-invoking all pending watchers when there are any, \f(CW\*(C`ev_run\*(C'\fR will call
-this callback instead. This is useful, for example, when you want to
-invoke the actual watchers inside another context (another thread etc.).
-.Sp
-If you want to reset the callback, use \f(CW\*(C`ev_invoke_pending\*(C'\fR as new
-callback.
-.IP "ev_set_loop_release_cb (loop, void (*release)(\s-1EV_P\s0), void (*acquire)(\s-1EV_P\s0))" 4
-.IX Item "ev_set_loop_release_cb (loop, void (*release)(EV_P), void (*acquire)(EV_P))"
-Sometimes you want to share the same loop between multiple threads. This
-can be done relatively simply by putting mutex_lock/unlock calls around
-each call to a libev function.
-.Sp
-However, \f(CW\*(C`ev_run\*(C'\fR can run an indefinite time, so it is not feasible
-to wait for it to return. One way around this is to wake up the event
-loop via \f(CW\*(C`ev_break\*(C'\fR and \f(CW\*(C`av_async_send\*(C'\fR, another way is to set these
-\&\fIrelease\fR and \fIacquire\fR callbacks on the loop.
-.Sp
-When set, then \f(CW\*(C`release\*(C'\fR will be called just before the thread is
-suspended waiting for new events, and \f(CW\*(C`acquire\*(C'\fR is called just
-afterwards.
-.Sp
-Ideally, \f(CW\*(C`release\*(C'\fR will just call your mutex_unlock function, and
-\&\f(CW\*(C`acquire\*(C'\fR will just call the mutex_lock function again.
-.Sp
-While event loop modifications are allowed between invocations of
-\&\f(CW\*(C`release\*(C'\fR and \f(CW\*(C`acquire\*(C'\fR (that's their only purpose after all), no
-modifications done will affect the event loop, i.e. adding watchers will
-have no effect on the set of file descriptors being watched, or the time
-waited. Use an \f(CW\*(C`ev_async\*(C'\fR watcher to wake up \f(CW\*(C`ev_run\*(C'\fR when you want it
-to take note of any changes you made.
-.Sp
-In theory, threads executing \f(CW\*(C`ev_run\*(C'\fR will be async-cancel safe between
-invocations of \f(CW\*(C`release\*(C'\fR and \f(CW\*(C`acquire\*(C'\fR.
-.Sp
-See also the locking example in the \f(CW\*(C`THREADS\*(C'\fR section later in this
-document.
-.IP "ev_set_userdata (loop, void *data)" 4
-.IX Item "ev_set_userdata (loop, void *data)"
-.PD 0
-.IP "void *ev_userdata (loop)" 4
-.IX Item "void *ev_userdata (loop)"
-.PD
-Set and retrieve a single \f(CW\*(C`void *\*(C'\fR associated with a loop. When
-\&\f(CW\*(C`ev_set_userdata\*(C'\fR has never been called, then \f(CW\*(C`ev_userdata\*(C'\fR returns
-\&\f(CW0\fR.
-.Sp
-These two functions can be used to associate arbitrary data with a loop,
-and are intended solely for the \f(CW\*(C`invoke_pending_cb\*(C'\fR, \f(CW\*(C`release\*(C'\fR and
-\&\f(CW\*(C`acquire\*(C'\fR callbacks described above, but of course can be (ab\-)used for
-any other purpose as well.
-.IP "ev_verify (loop)" 4
-.IX Item "ev_verify (loop)"
-This function only does something when \f(CW\*(C`EV_VERIFY\*(C'\fR support has been
-compiled in, which is the default for non-minimal builds. It tries to go
-through all internal structures and checks them for validity. If anything
-is found to be inconsistent, it will print an error message to standard
-error and call \f(CW\*(C`abort ()\*(C'\fR.
-.Sp
-This can be used to catch bugs inside libev itself: under normal
-circumstances, this function will never abort as of course libev keeps its
-data structures consistent.
-.SH "ANATOMY OF A WATCHER"
-.IX Header "ANATOMY OF A WATCHER"
-In the following description, uppercase \f(CW\*(C`TYPE\*(C'\fR in names stands for the
-watcher type, e.g. \f(CW\*(C`ev_TYPE_start\*(C'\fR can mean \f(CW\*(C`ev_timer_start\*(C'\fR for timer
-watchers and \f(CW\*(C`ev_io_start\*(C'\fR for I/O watchers.
-.PP
-A watcher is an opaque structure that you allocate and register to record
-your interest in some event. To make a concrete example, imagine you want
-to wait for \s-1STDIN\s0 to become readable, you would create an \f(CW\*(C`ev_io\*(C'\fR watcher
-for that:
-.PP
-.Vb 5
-\&   static void my_cb (struct ev_loop *loop, ev_io *w, int revents)
-\&   {
-\&     ev_io_stop (w);
-\&     ev_break (loop, EVBREAK_ALL);
-\&   }
-\&
-\&   struct ev_loop *loop = ev_default_loop (0);
-\&
-\&   ev_io stdin_watcher;
-\&
-\&   ev_init (&stdin_watcher, my_cb);
-\&   ev_io_set (&stdin_watcher, STDIN_FILENO, EV_READ);
-\&   ev_io_start (loop, &stdin_watcher);
-\&
-\&   ev_run (loop, 0);
-.Ve
-.PP
-As you can see, you are responsible for allocating the memory for your
-watcher structures (and it is \fIusually\fR a bad idea to do this on the
-stack).
-.PP
-Each watcher has an associated watcher structure (called \f(CW\*(C`struct ev_TYPE\*(C'\fR
-or simply \f(CW\*(C`ev_TYPE\*(C'\fR, as typedefs are provided for all watcher structs).
-.PP
-Each watcher structure must be initialised by a call to \f(CW\*(C`ev_init (watcher
-*, callback)\*(C'\fR, which expects a callback to be provided. This callback is
-invoked each time the event occurs (or, in the case of I/O watchers, each
-time the event loop detects that the file descriptor given is readable
-and/or writable).
-.PP
-Each watcher type further has its own \f(CW\*(C`ev_TYPE_set (watcher *, ...)\*(C'\fR
-macro to configure it, with arguments specific to the watcher type. There
-is also a macro to combine initialisation and setting in one call: \f(CW\*(C`ev_TYPE_init (watcher *, callback, ...)\*(C'\fR.
-.PP
-To make the watcher actually watch out for events, you have to start it
-with a watcher-specific start function (\f(CW\*(C`ev_TYPE_start (loop, watcher
-*)\*(C'\fR), and you can stop watching for events at any time by calling the
-corresponding stop function (\f(CW\*(C`ev_TYPE_stop (loop, watcher *)\*(C'\fR.
-.PP
-As long as your watcher is active (has been started but not stopped) you
-must not touch the values stored in it. Most specifically you must never
-reinitialise it or call its \f(CW\*(C`ev_TYPE_set\*(C'\fR macro.
-.PP
-Each and every callback receives the event loop pointer as first, the
-registered watcher structure as second, and a bitset of received events as
-third argument.
-.PP
-The received events usually include a single bit per event type received
-(you can receive multiple events at the same time). The possible bit masks
-are:
-.ie n .IP """EV_READ""" 4
-.el .IP "\f(CWEV_READ\fR" 4
-.IX Item "EV_READ"
-.PD 0
-.ie n .IP """EV_WRITE""" 4
-.el .IP "\f(CWEV_WRITE\fR" 4
-.IX Item "EV_WRITE"
-.PD
-The file descriptor in the \f(CW\*(C`ev_io\*(C'\fR watcher has become readable and/or
-writable.
-.ie n .IP """EV_TIMER""" 4
-.el .IP "\f(CWEV_TIMER\fR" 4
-.IX Item "EV_TIMER"
-The \f(CW\*(C`ev_timer\*(C'\fR watcher has timed out.
-.ie n .IP """EV_PERIODIC""" 4
-.el .IP "\f(CWEV_PERIODIC\fR" 4
-.IX Item "EV_PERIODIC"
-The \f(CW\*(C`ev_periodic\*(C'\fR watcher has timed out.
-.ie n .IP """EV_SIGNAL""" 4
-.el .IP "\f(CWEV_SIGNAL\fR" 4
-.IX Item "EV_SIGNAL"
-The signal specified in the \f(CW\*(C`ev_signal\*(C'\fR watcher has been received by a thread.
-.ie n .IP """EV_CHILD""" 4
-.el .IP "\f(CWEV_CHILD\fR" 4
-.IX Item "EV_CHILD"
-The pid specified in the \f(CW\*(C`ev_child\*(C'\fR watcher has received a status change.
-.ie n .IP """EV_STAT""" 4
-.el .IP "\f(CWEV_STAT\fR" 4
-.IX Item "EV_STAT"
-The path specified in the \f(CW\*(C`ev_stat\*(C'\fR watcher changed its attributes somehow.
-.ie n .IP """EV_IDLE""" 4
-.el .IP "\f(CWEV_IDLE\fR" 4
-.IX Item "EV_IDLE"
-The \f(CW\*(C`ev_idle\*(C'\fR watcher has determined that you have nothing better to do.
-.ie n .IP """EV_PREPARE""" 4
-.el .IP "\f(CWEV_PREPARE\fR" 4
-.IX Item "EV_PREPARE"
-.PD 0
-.ie n .IP """EV_CHECK""" 4
-.el .IP "\f(CWEV_CHECK\fR" 4
-.IX Item "EV_CHECK"
-.PD
-All \f(CW\*(C`ev_prepare\*(C'\fR watchers are invoked just \fIbefore\fR \f(CW\*(C`ev_run\*(C'\fR starts
-to gather new events, and all \f(CW\*(C`ev_check\*(C'\fR watchers are invoked just after
-\&\f(CW\*(C`ev_run\*(C'\fR has gathered them, but before it invokes any callbacks for any
-received events. Callbacks of both watcher types can start and stop as
-many watchers as they want, and all of them will be taken into account
-(for example, a \f(CW\*(C`ev_prepare\*(C'\fR watcher might start an idle watcher to keep
-\&\f(CW\*(C`ev_run\*(C'\fR from blocking).
-.ie n .IP """EV_EMBED""" 4
-.el .IP "\f(CWEV_EMBED\fR" 4
-.IX Item "EV_EMBED"
-The embedded event loop specified in the \f(CW\*(C`ev_embed\*(C'\fR watcher needs attention.
-.ie n .IP """EV_FORK""" 4
-.el .IP "\f(CWEV_FORK\fR" 4
-.IX Item "EV_FORK"
-The event loop has been resumed in the child process after fork (see
-\&\f(CW\*(C`ev_fork\*(C'\fR).
-.ie n .IP """EV_CLEANUP""" 4
-.el .IP "\f(CWEV_CLEANUP\fR" 4
-.IX Item "EV_CLEANUP"
-The event loop is about to be destroyed (see \f(CW\*(C`ev_cleanup\*(C'\fR).
-.ie n .IP """EV_ASYNC""" 4
-.el .IP "\f(CWEV_ASYNC\fR" 4
-.IX Item "EV_ASYNC"
-The given async watcher has been asynchronously notified (see \f(CW\*(C`ev_async\*(C'\fR).
-.ie n .IP """EV_CUSTOM""" 4
-.el .IP "\f(CWEV_CUSTOM\fR" 4
-.IX Item "EV_CUSTOM"
-Not ever sent (or otherwise used) by libev itself, but can be freely used
-by libev users to signal watchers (e.g. via \f(CW\*(C`ev_feed_event\*(C'\fR).
-.ie n .IP """EV_ERROR""" 4
-.el .IP "\f(CWEV_ERROR\fR" 4
-.IX Item "EV_ERROR"
-An unspecified error has occurred, the watcher has been stopped. This might
-happen because the watcher could not be properly started because libev
-ran out of memory, a file descriptor was found to be closed or any other
-problem. Libev considers these application bugs.
-.Sp
-You best act on it by reporting the problem and somehow coping with the
-watcher being stopped. Note that well-written programs should not receive
-an error ever, so when your watcher receives it, this usually indicates a
-bug in your program.
-.Sp
-Libev will usually signal a few \*(L"dummy\*(R" events together with an error, for
-example it might indicate that a fd is readable or writable, and if your
-callbacks is well-written it can just attempt the operation and cope with
-the error from \fIread()\fR or \fIwrite()\fR. This will not work in multi-threaded
-programs, though, as the fd could already be closed and reused for another
-thing, so beware.
-.SS "\s-1GENERIC\s0 \s-1WATCHER\s0 \s-1FUNCTIONS\s0"
-.IX Subsection "GENERIC WATCHER FUNCTIONS"
-.ie n .IP """ev_init"" (ev_TYPE *watcher, callback)" 4
-.el .IP "\f(CWev_init\fR (ev_TYPE *watcher, callback)" 4
-.IX Item "ev_init (ev_TYPE *watcher, callback)"
-This macro initialises the generic portion of a watcher. The contents
-of the watcher object can be arbitrary (so \f(CW\*(C`malloc\*(C'\fR will do). Only
-the generic parts of the watcher are initialised, you \fIneed\fR to call
-the type-specific \f(CW\*(C`ev_TYPE_set\*(C'\fR macro afterwards to initialise the
-type-specific parts. For each type there is also a \f(CW\*(C`ev_TYPE_init\*(C'\fR macro
-which rolls both calls into one.
-.Sp
-You can reinitialise a watcher at any time as long as it has been stopped
-(or never started) and there are no pending events outstanding.
-.Sp
-The callback is always of type \f(CW\*(C`void (*)(struct ev_loop *loop, ev_TYPE *watcher,
-int revents)\*(C'\fR.
-.Sp
-Example: Initialise an \f(CW\*(C`ev_io\*(C'\fR watcher in two steps.
-.Sp
-.Vb 3
-\&   ev_io w;
-\&   ev_init (&w, my_cb);
-\&   ev_io_set (&w, STDIN_FILENO, EV_READ);
-.Ve
-.ie n .IP """ev_TYPE_set"" (ev_TYPE *watcher, [args])" 4
-.el .IP "\f(CWev_TYPE_set\fR (ev_TYPE *watcher, [args])" 4
-.IX Item "ev_TYPE_set (ev_TYPE *watcher, [args])"
-This macro initialises the type-specific parts of a watcher. You need to
-call \f(CW\*(C`ev_init\*(C'\fR at least once before you call this macro, but you can
-call \f(CW\*(C`ev_TYPE_set\*(C'\fR any number of times. You must not, however, call this
-macro on a watcher that is active (it can be pending, however, which is a
-difference to the \f(CW\*(C`ev_init\*(C'\fR macro).
-.Sp
-Although some watcher types do not have type-specific arguments
-(e.g. \f(CW\*(C`ev_prepare\*(C'\fR) you still need to call its \f(CW\*(C`set\*(C'\fR macro.
-.Sp
-See \f(CW\*(C`ev_init\*(C'\fR, above, for an example.
-.ie n .IP """ev_TYPE_init"" (ev_TYPE *watcher, callback, [args])" 4
-.el .IP "\f(CWev_TYPE_init\fR (ev_TYPE *watcher, callback, [args])" 4
-.IX Item "ev_TYPE_init (ev_TYPE *watcher, callback, [args])"
-This convenience macro rolls both \f(CW\*(C`ev_init\*(C'\fR and \f(CW\*(C`ev_TYPE_set\*(C'\fR macro
-calls into a single call. This is the most convenient method to initialise
-a watcher. The same limitations apply, of course.
-.Sp
-Example: Initialise and set an \f(CW\*(C`ev_io\*(C'\fR watcher in one step.
-.Sp
-.Vb 1
-\&   ev_io_init (&w, my_cb, STDIN_FILENO, EV_READ);
-.Ve
-.ie n .IP """ev_TYPE_start"" (loop, ev_TYPE *watcher)" 4
-.el .IP "\f(CWev_TYPE_start\fR (loop, ev_TYPE *watcher)" 4
-.IX Item "ev_TYPE_start (loop, ev_TYPE *watcher)"
-Starts (activates) the given watcher. Only active watchers will receive
-events. If the watcher is already active nothing will happen.
-.Sp
-Example: Start the \f(CW\*(C`ev_io\*(C'\fR watcher that is being abused as example in this
-whole section.
-.Sp
-.Vb 1
-\&   ev_io_start (EV_DEFAULT_UC, &w);
-.Ve
-.ie n .IP """ev_TYPE_stop"" (loop, ev_TYPE *watcher)" 4
-.el .IP "\f(CWev_TYPE_stop\fR (loop, ev_TYPE *watcher)" 4
-.IX Item "ev_TYPE_stop (loop, ev_TYPE *watcher)"
-Stops the given watcher if active, and clears the pending status (whether
-the watcher was active or not).
-.Sp
-It is possible that stopped watchers are pending \- for example,
-non-repeating timers are being stopped when they become pending \- but
-calling \f(CW\*(C`ev_TYPE_stop\*(C'\fR ensures that the watcher is neither active nor
-pending. If you want to free or reuse the memory used by the watcher it is
-therefore a good idea to always call its \f(CW\*(C`ev_TYPE_stop\*(C'\fR function.
-.IP "bool ev_is_active (ev_TYPE *watcher)" 4
-.IX Item "bool ev_is_active (ev_TYPE *watcher)"
-Returns a true value iff the watcher is active (i.e. it has been started
-and not yet been stopped). As long as a watcher is active you must not modify
-it.
-.IP "bool ev_is_pending (ev_TYPE *watcher)" 4
-.IX Item "bool ev_is_pending (ev_TYPE *watcher)"
-Returns a true value iff the watcher is pending, (i.e. it has outstanding
-events but its callback has not yet been invoked). As long as a watcher
-is pending (but not active) you must not call an init function on it (but
-\&\f(CW\*(C`ev_TYPE_set\*(C'\fR is safe), you must not change its priority, and you must
-make sure the watcher is available to libev (e.g. you cannot \f(CW\*(C`free ()\*(C'\fR
-it).
-.IP "callback ev_cb (ev_TYPE *watcher)" 4
-.IX Item "callback ev_cb (ev_TYPE *watcher)"
-Returns the callback currently set on the watcher.
-.IP "ev_cb_set (ev_TYPE *watcher, callback)" 4
-.IX Item "ev_cb_set (ev_TYPE *watcher, callback)"
-Change the callback. You can change the callback at virtually any time
-(modulo threads).
-.IP "ev_set_priority (ev_TYPE *watcher, int priority)" 4
-.IX Item "ev_set_priority (ev_TYPE *watcher, int priority)"
-.PD 0
-.IP "int ev_priority (ev_TYPE *watcher)" 4
-.IX Item "int ev_priority (ev_TYPE *watcher)"
-.PD
-Set and query the priority of the watcher. The priority is a small
-integer between \f(CW\*(C`EV_MAXPRI\*(C'\fR (default: \f(CW2\fR) and \f(CW\*(C`EV_MINPRI\*(C'\fR
-(default: \f(CW\*(C`\-2\*(C'\fR). Pending watchers with higher priority will be invoked
-before watchers with lower priority, but priority will not keep watchers
-from being executed (except for \f(CW\*(C`ev_idle\*(C'\fR watchers).
-.Sp
-If you need to suppress invocation when higher priority events are pending
-you need to look at \f(CW\*(C`ev_idle\*(C'\fR watchers, which provide this functionality.
-.Sp
-You \fImust not\fR change the priority of a watcher as long as it is active or
-pending.
-.Sp
-Setting a priority outside the range of \f(CW\*(C`EV_MINPRI\*(C'\fR to \f(CW\*(C`EV_MAXPRI\*(C'\fR is
-fine, as long as you do not mind that the priority value you query might
-or might not have been clamped to the valid range.
-.Sp
-The default priority used by watchers when no priority has been set is
-always \f(CW0\fR, which is supposed to not be too high and not be too low :).
-.Sp
-See \*(L"\s-1WATCHER\s0 \s-1PRIORITY\s0 \s-1MODELS\s0\*(R", below, for a more thorough treatment of
-priorities.
-.IP "ev_invoke (loop, ev_TYPE *watcher, int revents)" 4
-.IX Item "ev_invoke (loop, ev_TYPE *watcher, int revents)"
-Invoke the \f(CW\*(C`watcher\*(C'\fR with the given \f(CW\*(C`loop\*(C'\fR and \f(CW\*(C`revents\*(C'\fR. Neither
-\&\f(CW\*(C`loop\*(C'\fR nor \f(CW\*(C`revents\*(C'\fR need to be valid as long as the watcher callback
-can deal with that fact, as both are simply passed through to the
-callback.
-.IP "int ev_clear_pending (loop, ev_TYPE *watcher)" 4
-.IX Item "int ev_clear_pending (loop, ev_TYPE *watcher)"
-If the watcher is pending, this function clears its pending status and
-returns its \f(CW\*(C`revents\*(C'\fR bitset (as if its callback was invoked). If the
-watcher isn't pending it does nothing and returns \f(CW0\fR.
-.Sp
-Sometimes it can be useful to \*(L"poll\*(R" a watcher instead of waiting for its
-callback to be invoked, which can be accomplished with this function.
-.IP "ev_feed_event (loop, ev_TYPE *watcher, int revents)" 4
-.IX Item "ev_feed_event (loop, ev_TYPE *watcher, int revents)"
-Feeds the given event set into the event loop, as if the specified event
-had happened for the specified watcher (which must be a pointer to an
-initialised but not necessarily started event watcher). Obviously you must
-not free the watcher as long as it has pending events.
-.Sp
-Stopping the watcher, letting libev invoke it, or calling
-\&\f(CW\*(C`ev_clear_pending\*(C'\fR will clear the pending event, even if the watcher was
-not started in the first place.
-.Sp
-See also \f(CW\*(C`ev_feed_fd_event\*(C'\fR and \f(CW\*(C`ev_feed_signal_event\*(C'\fR for related
-functions that do not need a watcher.
-.PP
-See also the \*(L"\s-1ASSOCIATING\s0 \s-1CUSTOM\s0 \s-1DATA\s0 \s-1WITH\s0 A \s-1WATCHER\s0\*(R" and \*(L"\s-1BUILDING\s0 \s-1YOUR\s0
-\&\s-1OWN\s0 \s-1COMPOSITE\s0 \s-1WATCHERS\s0\*(R" idioms.
-.SS "\s-1WATCHER\s0 \s-1STATES\s0"
-.IX Subsection "WATCHER STATES"
-There are various watcher states mentioned throughout this manual \-
-active, pending and so on. In this section these states and the rules to
-transition between them will be described in more detail \- and while these
-rules might look complicated, they usually do \*(L"the right thing\*(R".
-.IP "initialiased" 4
-.IX Item "initialiased"
-Before a watcher can be registered with the event looop it has to be
-initialised. This can be done with a call to \f(CW\*(C`ev_TYPE_init\*(C'\fR, or calls to
-\&\f(CW\*(C`ev_init\*(C'\fR followed by the watcher-specific \f(CW\*(C`ev_TYPE_set\*(C'\fR function.
-.Sp
-In this state it is simply some block of memory that is suitable for
-use in an event loop. It can be moved around, freed, reused etc. at
-will \- as long as you either keep the memory contents intact, or call
-\&\f(CW\*(C`ev_TYPE_init\*(C'\fR again.
-.IP "started/running/active" 4
-.IX Item "started/running/active"
-Once a watcher has been started with a call to \f(CW\*(C`ev_TYPE_start\*(C'\fR it becomes
-property of the event loop, and is actively waiting for events. While in
-this state it cannot be accessed (except in a few documented ways), moved,
-freed or anything else \- the only legal thing is to keep a pointer to it,
-and call libev functions on it that are documented to work on active watchers.
-.IP "pending" 4
-.IX Item "pending"
-If a watcher is active and libev determines that an event it is interested
-in has occurred (such as a timer expiring), it will become pending. It will
-stay in this pending state until either it is stopped or its callback is
-about to be invoked, so it is not normally pending inside the watcher
-callback.
-.Sp
-The watcher might or might not be active while it is pending (for example,
-an expired non-repeating timer can be pending but no longer active). If it
-is stopped, it can be freely accessed (e.g. by calling \f(CW\*(C`ev_TYPE_set\*(C'\fR),
-but it is still property of the event loop at this time, so cannot be
-moved, freed or reused. And if it is active the rules described in the
-previous item still apply.
-.Sp
-It is also possible to feed an event on a watcher that is not active (e.g.
-via \f(CW\*(C`ev_feed_event\*(C'\fR), in which case it becomes pending without being
-active.
-.IP "stopped" 4
-.IX Item "stopped"
-A watcher can be stopped implicitly by libev (in which case it might still
-be pending), or explicitly by calling its \f(CW\*(C`ev_TYPE_stop\*(C'\fR function. The
-latter will clear any pending state the watcher might be in, regardless
-of whether it was active or not, so stopping a watcher explicitly before
-freeing it is often a good idea.
-.Sp
-While stopped (and not pending) the watcher is essentially in the
-initialised state, that is, it can be reused, moved, modified in any way
-you wish (but when you trash the memory block, you need to \f(CW\*(C`ev_TYPE_init\*(C'\fR
-it again).
-.SS "\s-1WATCHER\s0 \s-1PRIORITY\s0 \s-1MODELS\s0"
-.IX Subsection "WATCHER PRIORITY MODELS"
-Many event loops support \fIwatcher priorities\fR, which are usually small
-integers that influence the ordering of event callback invocation
-between watchers in some way, all else being equal.
-.PP
-In libev, Watcher priorities can be set using \f(CW\*(C`ev_set_priority\*(C'\fR. See its
-description for the more technical details such as the actual priority
-range.
-.PP
-There are two common ways how these these priorities are being interpreted
-by event loops:
-.PP
-In the more common lock-out model, higher priorities \*(L"lock out\*(R" invocation
-of lower priority watchers, which means as long as higher priority
-watchers receive events, lower priority watchers are not being invoked.
-.PP
-The less common only-for-ordering model uses priorities solely to order
-callback invocation within a single event loop iteration: Higher priority
-watchers are invoked before lower priority ones, but they all get invoked
-before polling for new events.
-.PP
-Libev uses the second (only-for-ordering) model for all its watchers
-except for idle watchers (which use the lock-out model).
-.PP
-The rationale behind this is that implementing the lock-out model for
-watchers is not well supported by most kernel interfaces, and most event
-libraries will just poll for the same events again and again as long as
-their callbacks have not been executed, which is very inefficient in the
-common case of one high-priority watcher locking out a mass of lower
-priority ones.
-.PP
-Static (ordering) priorities are most useful when you have two or more
-watchers handling the same resource: a typical usage example is having an
-\&\f(CW\*(C`ev_io\*(C'\fR watcher to receive data, and an associated \f(CW\*(C`ev_timer\*(C'\fR to handle
-timeouts. Under load, data might be received while the program handles
-other jobs, but since timers normally get invoked first, the timeout
-handler will be executed before checking for data. In that case, giving
-the timer a lower priority than the I/O watcher ensures that I/O will be
-handled first even under adverse conditions (which is usually, but not
-always, what you want).
-.PP
-Since idle watchers use the \*(L"lock-out\*(R" model, meaning that idle watchers
-will only be executed when no same or higher priority watchers have
-received events, they can be used to implement the \*(L"lock-out\*(R" model when
-required.
-.PP
-For example, to emulate how many other event libraries handle priorities,
-you can associate an \f(CW\*(C`ev_idle\*(C'\fR watcher to each such watcher, and in
-the normal watcher callback, you just start the idle watcher. The real
-processing is done in the idle watcher callback. This causes libev to
-continuously poll and process kernel event data for the watcher, but when
-the lock-out case is known to be rare (which in turn is rare :), this is
-workable.
-.PP
-Usually, however, the lock-out model implemented that way will perform
-miserably under the type of load it was designed to handle. In that case,
-it might be preferable to stop the real watcher before starting the
-idle watcher, so the kernel will not have to process the event in case
-the actual processing will be delayed for considerable time.
-.PP
-Here is an example of an I/O watcher that should run at a strictly lower
-priority than the default, and which should only process data when no
-other events are pending:
-.PP
-.Vb 2
-\&   ev_idle idle; // actual processing watcher
-\&   ev_io io;     // actual event watcher
-\&
-\&   static void
-\&   io_cb (EV_P_ ev_io *w, int revents)
-\&   {
-\&     // stop the I/O watcher, we received the event, but
-\&     // are not yet ready to handle it.
-\&     ev_io_stop (EV_A_ w);
-\&
-\&     // start the idle watcher to handle the actual event.
-\&     // it will not be executed as long as other watchers
-\&     // with the default priority are receiving events.
-\&     ev_idle_start (EV_A_ &idle);
-\&   }
-\&
-\&   static void
-\&   idle_cb (EV_P_ ev_idle *w, int revents)
-\&   {
-\&     // actual processing
-\&     read (STDIN_FILENO, ...);
-\&
-\&     // have to start the I/O watcher again, as
-\&     // we have handled the event
-\&     ev_io_start (EV_P_ &io);
-\&   }
-\&
-\&   // initialisation
-\&   ev_idle_init (&idle, idle_cb);
-\&   ev_io_init (&io, io_cb, STDIN_FILENO, EV_READ);
-\&   ev_io_start (EV_DEFAULT_ &io);
-.Ve
-.PP
-In the \*(L"real\*(R" world, it might also be beneficial to start a timer, so that
-low-priority connections can not be locked out forever under load. This
-enables your program to keep a lower latency for important connections
-during short periods of high load, while not completely locking out less
-important ones.
-.SH "WATCHER TYPES"
-.IX Header "WATCHER TYPES"
-This section describes each watcher in detail, but will not repeat
-information given in the last section. Any initialisation/set macros,
-functions and members specific to the watcher type are explained.
-.PP
-Members are additionally marked with either \fI[read\-only]\fR, meaning that,
-while the watcher is active, you can look at the member and expect some
-sensible content, but you must not modify it (you can modify it while the
-watcher is stopped to your hearts content), or \fI[read\-write]\fR, which
-means you can expect it to have some sensible content while the watcher
-is active, but you can also modify it. Modifying it may not do something
-sensible or take immediate effect (or do anything at all), but libev will
-not crash or malfunction in any way.
-.ie n .SS """ev_io"" \- is this file descriptor readable or writable?"
-.el .SS "\f(CWev_io\fP \- is this file descriptor readable or writable?"
-.IX Subsection "ev_io - is this file descriptor readable or writable?"
-I/O watchers check whether a file descriptor is readable or writable
-in each iteration of the event loop, or, more precisely, when reading
-would not block the process and writing would at least be able to write
-some data. This behaviour is called level-triggering because you keep
-receiving events as long as the condition persists. Remember you can stop
-the watcher if you don't want to act on the event and neither want to
-receive future events.
-.PP
-In general you can register as many read and/or write event watchers per
-fd as you want (as long as you don't confuse yourself). Setting all file
-descriptors to non-blocking mode is also usually a good idea (but not
-required if you know what you are doing).
-.PP
-Another thing you have to watch out for is that it is quite easy to
-receive \*(L"spurious\*(R" readiness notifications, that is, your callback might
-be called with \f(CW\*(C`EV_READ\*(C'\fR but a subsequent \f(CW\*(C`read\*(C'\fR(2) will actually block
-because there is no data. It is very easy to get into this situation even
-with a relatively standard program structure. Thus it is best to always
-use non-blocking I/O: An extra \f(CW\*(C`read\*(C'\fR(2) returning \f(CW\*(C`EAGAIN\*(C'\fR is far
-preferable to a program hanging until some data arrives.
-.PP
-If you cannot run the fd in non-blocking mode (for example you should
-not play around with an Xlib connection), then you have to separately
-re-test whether a file descriptor is really ready with a known-to-be good
-interface such as poll (fortunately in the case of Xlib, it already does
-this on its own, so its quite safe to use). Some people additionally
-use \f(CW\*(C`SIGALRM\*(C'\fR and an interval timer, just to be sure you won't block
-indefinitely.
-.PP
-But really, best use non-blocking mode.
-.PP
-\fIThe special problem of disappearing file descriptors\fR
-.IX Subsection "The special problem of disappearing file descriptors"
-.PP
-Some backends (e.g. kqueue, epoll) need to be told about closing a file
-descriptor (either due to calling \f(CW\*(C`close\*(C'\fR explicitly or any other means,
-such as \f(CW\*(C`dup2\*(C'\fR). The reason is that you register interest in some file
-descriptor, but when it goes away, the operating system will silently drop
-this interest. If another file descriptor with the same number then is
-registered with libev, there is no efficient way to see that this is, in
-fact, a different file descriptor.
-.PP
-To avoid having to explicitly tell libev about such cases, libev follows
-the following policy:  Each time \f(CW\*(C`ev_io_set\*(C'\fR is being called, libev
-will assume that this is potentially a new file descriptor, otherwise
-it is assumed that the file descriptor stays the same. That means that
-you \fIhave\fR to call \f(CW\*(C`ev_io_set\*(C'\fR (or \f(CW\*(C`ev_io_init\*(C'\fR) when you change the
-descriptor even if the file descriptor number itself did not change.
-.PP
-This is how one would do it normally anyway, the important point is that
-the libev application should not optimise around libev but should leave
-optimisations to libev.
-.PP
-\fIThe special problem of dup'ed file descriptors\fR
-.IX Subsection "The special problem of dup'ed file descriptors"
-.PP
-Some backends (e.g. epoll), cannot register events for file descriptors,
-but only events for the underlying file descriptions. That means when you
-have \f(CW\*(C`dup ()\*(C'\fR'ed file descriptors or weirder constellations, and register
-events for them, only one file descriptor might actually receive events.
-.PP
-There is no workaround possible except not registering events
-for potentially \f(CW\*(C`dup ()\*(C'\fR'ed file descriptors, or to resort to
-\&\f(CW\*(C`EVBACKEND_SELECT\*(C'\fR or \f(CW\*(C`EVBACKEND_POLL\*(C'\fR.
-.PP
-\fIThe special problem of files\fR
-.IX Subsection "The special problem of files"
-.PP
-Many people try to use \f(CW\*(C`select\*(C'\fR (or libev) on file descriptors
-representing files, and expect it to become ready when their program
-doesn't block on disk accesses (which can take a long time on their own).
-.PP
-However, this cannot ever work in the \*(L"expected\*(R" way \- you get a readiness
-notification as soon as the kernel knows whether and how much data is
-there, and in the case of open files, that's always the case, so you
-always get a readiness notification instantly, and your read (or possibly
-write) will still block on the disk I/O.
-.PP
-Another way to view it is that in the case of sockets, pipes, character
-devices and so on, there is another party (the sender) that delivers data
-on its own, but in the case of files, there is no such thing: the disk
-will not send data on its own, simply because it doesn't know what you
-wish to read \- you would first have to request some data.
-.PP
-Since files are typically not-so-well supported by advanced notification
-mechanism, libev tries hard to emulate \s-1POSIX\s0 behaviour with respect
-to files, even though you should not use it. The reason for this is
-convenience: sometimes you want to watch \s-1STDIN\s0 or \s-1STDOUT\s0, which is
-usually a tty, often a pipe, but also sometimes files or special devices
-(for example, \f(CW\*(C`epoll\*(C'\fR on Linux works with \fI/dev/random\fR but not with
-\&\fI/dev/urandom\fR), and even though the file might better be served with
-asynchronous I/O instead of with non-blocking I/O, it is still useful when
-it \*(L"just works\*(R" instead of freezing.
-.PP
-So avoid file descriptors pointing to files when you know it (e.g. use
-libeio), but use them when it is convenient, e.g. for \s-1STDIN/STDOUT\s0, or
-when you rarely read from a file instead of from a socket, and want to
-reuse the same code path.
-.PP
-\fIThe special problem of fork\fR
-.IX Subsection "The special problem of fork"
-.PP
-Some backends (epoll, kqueue) do not support \f(CW\*(C`fork ()\*(C'\fR at all or exhibit
-useless behaviour. Libev fully supports fork, but needs to be told about
-it in the child if you want to continue to use it in the child.
-.PP
-To support fork in your child processes, you have to call \f(CW\*(C`ev_loop_fork
-()\*(C'\fR after a fork in the child, enable \f(CW\*(C`EVFLAG_FORKCHECK\*(C'\fR, or resort to
-\&\f(CW\*(C`EVBACKEND_SELECT\*(C'\fR or \f(CW\*(C`EVBACKEND_POLL\*(C'\fR.
-.PP
-\fIThe special problem of \s-1SIGPIPE\s0\fR
-.IX Subsection "The special problem of SIGPIPE"
-.PP
-While not really specific to libev, it is easy to forget about \f(CW\*(C`SIGPIPE\*(C'\fR:
-when writing to a pipe whose other end has been closed, your program gets
-sent a \s-1SIGPIPE\s0, which, by default, aborts your program. For most programs
-this is sensible behaviour, for daemons, this is usually undesirable.
-.PP
-So when you encounter spurious, unexplained daemon exits, make sure you
-ignore \s-1SIGPIPE\s0 (and maybe make sure you log the exit status of your daemon
-somewhere, as that would have given you a big clue).
-.PP
-\fIThe special problem of \fIaccept()\fIing when you can't\fR
-.IX Subsection "The special problem of accept()ing when you can't"
-.PP
-Many implementations of the \s-1POSIX\s0 \f(CW\*(C`accept\*(C'\fR function (for example,
-found in post\-2004 Linux) have the peculiar behaviour of not removing a
-connection from the pending queue in all error cases.
-.PP
-For example, larger servers often run out of file descriptors (because
-of resource limits), causing \f(CW\*(C`accept\*(C'\fR to fail with \f(CW\*(C`ENFILE\*(C'\fR but not
-rejecting the connection, leading to libev signalling readiness on
-the next iteration again (the connection still exists after all), and
-typically causing the program to loop at 100% \s-1CPU\s0 usage.
-.PP
-Unfortunately, the set of errors that cause this issue differs between
-operating systems, there is usually little the app can do to remedy the
-situation, and no known thread-safe method of removing the connection to
-cope with overload is known (to me).
-.PP
-One of the easiest ways to handle this situation is to just ignore it
-\&\- when the program encounters an overload, it will just loop until the
-situation is over. While this is a form of busy waiting, no \s-1OS\s0 offers an
-event-based way to handle this situation, so it's the best one can do.
-.PP
-A better way to handle the situation is to log any errors other than
-\&\f(CW\*(C`EAGAIN\*(C'\fR and \f(CW\*(C`EWOULDBLOCK\*(C'\fR, making sure not to flood the log with such
-messages, and continue as usual, which at least gives the user an idea of
-what could be wrong (\*(L"raise the ulimit!\*(R"). For extra points one could stop
-the \f(CW\*(C`ev_io\*(C'\fR watcher on the listening fd \*(L"for a while\*(R", which reduces \s-1CPU\s0
-usage.
-.PP
-If your program is single-threaded, then you could also keep a dummy file
-descriptor for overload situations (e.g. by opening \fI/dev/null\fR), and
-when you run into \f(CW\*(C`ENFILE\*(C'\fR or \f(CW\*(C`EMFILE\*(C'\fR, close it, run \f(CW\*(C`accept\*(C'\fR,
-close that fd, and create a new dummy fd. This will gracefully refuse
-clients under typical overload conditions.
-.PP
-The last way to handle it is to simply log the error and \f(CW\*(C`exit\*(C'\fR, as
-is often done with \f(CW\*(C`malloc\*(C'\fR failures, but this results in an easy
-opportunity for a DoS attack.
-.PP
-\fIWatcher-Specific Functions\fR
-.IX Subsection "Watcher-Specific Functions"
-.IP "ev_io_init (ev_io *, callback, int fd, int events)" 4
-.IX Item "ev_io_init (ev_io *, callback, int fd, int events)"
-.PD 0
-.IP "ev_io_set (ev_io *, int fd, int events)" 4
-.IX Item "ev_io_set (ev_io *, int fd, int events)"
-.PD
-Configures an \f(CW\*(C`ev_io\*(C'\fR watcher. The \f(CW\*(C`fd\*(C'\fR is the file descriptor to
-receive events for and \f(CW\*(C`events\*(C'\fR is either \f(CW\*(C`EV_READ\*(C'\fR, \f(CW\*(C`EV_WRITE\*(C'\fR or
-\&\f(CW\*(C`EV_READ | EV_WRITE\*(C'\fR, to express the desire to receive the given events.
-.IP "int fd [read\-only]" 4
-.IX Item "int fd [read-only]"
-The file descriptor being watched.
-.IP "int events [read\-only]" 4
-.IX Item "int events [read-only]"
-The events being watched.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.PP
-Example: Call \f(CW\*(C`stdin_readable_cb\*(C'\fR when \s-1STDIN_FILENO\s0 has become, well
-readable, but only once. Since it is likely line-buffered, you could
-attempt to read a whole line in the callback.
-.PP
-.Vb 6
-\&   static void
-\&   stdin_readable_cb (struct ev_loop *loop, ev_io *w, int revents)
-\&   {
-\&      ev_io_stop (loop, w);
-\&     .. read from stdin here (or from w\->fd) and handle any I/O errors
-\&   }
-\&
-\&   ...
-\&   struct ev_loop *loop = ev_default_init (0);
-\&   ev_io stdin_readable;
-\&   ev_io_init (&stdin_readable, stdin_readable_cb, STDIN_FILENO, EV_READ);
-\&   ev_io_start (loop, &stdin_readable);
-\&   ev_run (loop, 0);
-.Ve
-.ie n .SS """ev_timer"" \- relative and optionally repeating timeouts"
-.el .SS "\f(CWev_timer\fP \- relative and optionally repeating timeouts"
-.IX Subsection "ev_timer - relative and optionally repeating timeouts"
-Timer watchers are simple relative timers that generate an event after a
-given time, and optionally repeating in regular intervals after that.
-.PP
-The timers are based on real time, that is, if you register an event that
-times out after an hour and you reset your system clock to January last
-year, it will still time out after (roughly) one hour. \*(L"Roughly\*(R" because
-detecting time jumps is hard, and some inaccuracies are unavoidable (the
-monotonic clock option helps a lot here).
-.PP
-The callback is guaranteed to be invoked only \fIafter\fR its timeout has
-passed (not \fIat\fR, so on systems with very low-resolution clocks this
-might introduce a small delay). If multiple timers become ready during the
-same loop iteration then the ones with earlier time-out values are invoked
-before ones of the same priority with later time-out values (but this is
-no longer true when a callback calls \f(CW\*(C`ev_run\*(C'\fR recursively).
-.PP
-\fIBe smart about timeouts\fR
-.IX Subsection "Be smart about timeouts"
-.PP
-Many real-world problems involve some kind of timeout, usually for error
-recovery. A typical example is an \s-1HTTP\s0 request \- if the other side hangs,
-you want to raise some error after a while.
-.PP
-What follows are some ways to handle this problem, from obvious and
-inefficient to smart and efficient.
-.PP
-In the following, a 60 second activity timeout is assumed \- a timeout that
-gets reset to 60 seconds each time there is activity (e.g. each time some
-data or other life sign was received).
-.IP "1. Use a timer and stop, reinitialise and start it on activity." 4
-.IX Item "1. Use a timer and stop, reinitialise and start it on activity."
-This is the most obvious, but not the most simple way: In the beginning,
-start the watcher:
-.Sp
-.Vb 2
-\&   ev_timer_init (timer, callback, 60., 0.);
-\&   ev_timer_start (loop, timer);
-.Ve
-.Sp
-Then, each time there is some activity, \f(CW\*(C`ev_timer_stop\*(C'\fR it, initialise it
-and start it again:
-.Sp
-.Vb 3
-\&   ev_timer_stop (loop, timer);
-\&   ev_timer_set (timer, 60., 0.);
-\&   ev_timer_start (loop, timer);
-.Ve
-.Sp
-This is relatively simple to implement, but means that each time there is
-some activity, libev will first have to remove the timer from its internal
-data structure and then add it again. Libev tries to be fast, but it's
-still not a constant-time operation.
-.ie n .IP "2. Use a timer and re-start it with ""ev_timer_again"" inactivity." 4
-.el .IP "2. Use a timer and re-start it with \f(CWev_timer_again\fR inactivity." 4
-.IX Item "2. Use a timer and re-start it with ev_timer_again inactivity."
-This is the easiest way, and involves using \f(CW\*(C`ev_timer_again\*(C'\fR instead of
-\&\f(CW\*(C`ev_timer_start\*(C'\fR.
-.Sp
-To implement this, configure an \f(CW\*(C`ev_timer\*(C'\fR with a \f(CW\*(C`repeat\*(C'\fR value
-of \f(CW60\fR and then call \f(CW\*(C`ev_timer_again\*(C'\fR at start and each time you
-successfully read or write some data. If you go into an idle state where
-you do not expect data to travel on the socket, you can \f(CW\*(C`ev_timer_stop\*(C'\fR
-the timer, and \f(CW\*(C`ev_timer_again\*(C'\fR will automatically restart it if need be.
-.Sp
-That means you can ignore both the \f(CW\*(C`ev_timer_start\*(C'\fR function and the
-\&\f(CW\*(C`after\*(C'\fR argument to \f(CW\*(C`ev_timer_set\*(C'\fR, and only ever use the \f(CW\*(C`repeat\*(C'\fR
-member and \f(CW\*(C`ev_timer_again\*(C'\fR.
-.Sp
-At start:
-.Sp
-.Vb 3
-\&   ev_init (timer, callback);
-\&   timer\->repeat = 60.;
-\&   ev_timer_again (loop, timer);
-.Ve
-.Sp
-Each time there is some activity:
-.Sp
-.Vb 1
-\&   ev_timer_again (loop, timer);
-.Ve
-.Sp
-It is even possible to change the time-out on the fly, regardless of
-whether the watcher is active or not:
-.Sp
-.Vb 2
-\&   timer\->repeat = 30.;
-\&   ev_timer_again (loop, timer);
-.Ve
-.Sp
-This is slightly more efficient then stopping/starting the timer each time
-you want to modify its timeout value, as libev does not have to completely
-remove and re-insert the timer from/into its internal data structure.
-.Sp
-It is, however, even simpler than the \*(L"obvious\*(R" way to do it.
-.IP "3. Let the timer time out, but then re-arm it as required." 4
-.IX Item "3. Let the timer time out, but then re-arm it as required."
-This method is more tricky, but usually most efficient: Most timeouts are
-relatively long compared to the intervals between other activity \- in
-our example, within 60 seconds, there are usually many I/O events with
-associated activity resets.
-.Sp
-In this case, it would be more efficient to leave the \f(CW\*(C`ev_timer\*(C'\fR alone,
-but remember the time of last activity, and check for a real timeout only
-within the callback:
-.Sp
-.Vb 1
-\&   ev_tstamp last_activity; // time of last activity
-\&
-\&   static void
-\&   callback (EV_P_ ev_timer *w, int revents)
-\&   {
-\&     ev_tstamp now     = ev_now (EV_A);
-\&     ev_tstamp timeout = last_activity + 60.;
-\&
-\&     // if last_activity + 60. is older than now, we did time out
-\&     if (timeout < now)
-\&       {
-\&         // timeout occurred, take action
-\&       }
-\&     else
-\&       {
-\&         // callback was invoked, but there was some activity, re\-arm
-\&         // the watcher to fire in last_activity + 60, which is
-\&         // guaranteed to be in the future, so "again" is positive:
-\&         w\->repeat = timeout \- now;
-\&         ev_timer_again (EV_A_ w);
-\&       }
-\&   }
-.Ve
-.Sp
-To summarise the callback: first calculate the real timeout (defined
-as \*(L"60 seconds after the last activity\*(R"), then check if that time has
-been reached, which means something \fIdid\fR, in fact, time out. Otherwise
-the callback was invoked too early (\f(CW\*(C`timeout\*(C'\fR is in the future), so
-re-schedule the timer to fire at that future time, to see if maybe we have
-a timeout then.
-.Sp
-Note how \f(CW\*(C`ev_timer_again\*(C'\fR is used, taking advantage of the
-\&\f(CW\*(C`ev_timer_again\*(C'\fR optimisation when the timer is already running.
-.Sp
-This scheme causes more callback invocations (about one every 60 seconds
-minus half the average time between activity), but virtually no calls to
-libev to change the timeout.
-.Sp
-To start the timer, simply initialise the watcher and set \f(CW\*(C`last_activity\*(C'\fR
-to the current time (meaning we just have some activity :), then call the
-callback, which will \*(L"do the right thing\*(R" and start the timer:
-.Sp
-.Vb 3
-\&   ev_init (timer, callback);
-\&   last_activity = ev_now (loop);
-\&   callback (loop, timer, EV_TIMER);
-.Ve
-.Sp
-And when there is some activity, simply store the current time in
-\&\f(CW\*(C`last_activity\*(C'\fR, no libev calls at all:
-.Sp
-.Vb 1
-\&   last_activity = ev_now (loop);
-.Ve
-.Sp
-This technique is slightly more complex, but in most cases where the
-time-out is unlikely to be triggered, much more efficient.
-.Sp
-Changing the timeout is trivial as well (if it isn't hard-coded in the
-callback :) \- just change the timeout and invoke the callback, which will
-fix things for you.
-.IP "4. Wee, just use a double-linked list for your timeouts." 4
-.IX Item "4. Wee, just use a double-linked list for your timeouts."
-If there is not one request, but many thousands (millions...), all
-employing some kind of timeout with the same timeout value, then one can
-do even better:
-.Sp
-When starting the timeout, calculate the timeout value and put the timeout
-at the \fIend\fR of the list.
-.Sp
-Then use an \f(CW\*(C`ev_timer\*(C'\fR to fire when the timeout at the \fIbeginning\fR of
-the list is expected to fire (for example, using the technique #3).
-.Sp
-When there is some activity, remove the timer from the list, recalculate
-the timeout, append it to the end of the list again, and make sure to
-update the \f(CW\*(C`ev_timer\*(C'\fR if it was taken from the beginning of the list.
-.Sp
-This way, one can manage an unlimited number of timeouts in O(1) time for
-starting, stopping and updating the timers, at the expense of a major
-complication, and having to use a constant timeout. The constant timeout
-ensures that the list stays sorted.
-.PP
-So which method the best?
-.PP
-Method #2 is a simple no-brain-required solution that is adequate in most
-situations. Method #3 requires a bit more thinking, but handles many cases
-better, and isn't very complicated either. In most case, choosing either
-one is fine, with #3 being better in typical situations.
-.PP
-Method #1 is almost always a bad idea, and buys you nothing. Method #4 is
-rather complicated, but extremely efficient, something that really pays
-off after the first million or so of active timers, i.e. it's usually
-overkill :)
-.PP
-\fIThe special problem of time updates\fR
-.IX Subsection "The special problem of time updates"
-.PP
-Establishing the current time is a costly operation (it usually takes at
-least two system calls): \s-1EV\s0 therefore updates its idea of the current
-time only before and after \f(CW\*(C`ev_run\*(C'\fR collects new events, which causes a
-growing difference between \f(CW\*(C`ev_now ()\*(C'\fR and \f(CW\*(C`ev_time ()\*(C'\fR when handling
-lots of events in one iteration.
-.PP
-The relative timeouts are calculated relative to the \f(CW\*(C`ev_now ()\*(C'\fR
-time. This is usually the right thing as this timestamp refers to the time
-of the event triggering whatever timeout you are modifying/starting. If
-you suspect event processing to be delayed and you \fIneed\fR to base the
-timeout on the current time, use something like this to adjust for this:
-.PP
-.Vb 1
-\&   ev_timer_set (&timer, after + ev_now () \- ev_time (), 0.);
-.Ve
-.PP
-If the event loop is suspended for a long time, you can also force an
-update of the time returned by \f(CW\*(C`ev_now ()\*(C'\fR by calling \f(CW\*(C`ev_now_update
-()\*(C'\fR.
-.PP
-\fIThe special problems of suspended animation\fR
-.IX Subsection "The special problems of suspended animation"
-.PP
-When you leave the server world it is quite customary to hit machines that
-can suspend/hibernate \- what happens to the clocks during such a suspend?
-.PP
-Some quick tests made with a Linux 2.6.28 indicate that a suspend freezes
-all processes, while the clocks (\f(CW\*(C`times\*(C'\fR, \f(CW\*(C`CLOCK_MONOTONIC\*(C'\fR) continue
-to run until the system is suspended, but they will not advance while the
-system is suspended. That means, on resume, it will be as if the program
-was frozen for a few seconds, but the suspend time will not be counted
-towards \f(CW\*(C`ev_timer\*(C'\fR when a monotonic clock source is used. The real time
-clock advanced as expected, but if it is used as sole clocksource, then a
-long suspend would be detected as a time jump by libev, and timers would
-be adjusted accordingly.
-.PP
-I would not be surprised to see different behaviour in different between
-operating systems, \s-1OS\s0 versions or even different hardware.
-.PP
-The other form of suspend (job control, or sending a \s-1SIGSTOP\s0) will see a
-time jump in the monotonic clocks and the realtime clock. If the program
-is suspended for a very long time, and monotonic clock sources are in use,
-then you can expect \f(CW\*(C`ev_timer\*(C'\fRs to expire as the full suspension time
-will be counted towards the timers. When no monotonic clock source is in
-use, then libev will again assume a timejump and adjust accordingly.
-.PP
-It might be beneficial for this latter case to call \f(CW\*(C`ev_suspend\*(C'\fR
-and \f(CW\*(C`ev_resume\*(C'\fR in code that handles \f(CW\*(C`SIGTSTP\*(C'\fR, to at least get
-deterministic behaviour in this case (you can do nothing against
-\&\f(CW\*(C`SIGSTOP\*(C'\fR).
-.PP
-\fIWatcher-Specific Functions and Data Members\fR
-.IX Subsection "Watcher-Specific Functions and Data Members"
-.IP "ev_timer_init (ev_timer *, callback, ev_tstamp after, ev_tstamp repeat)" 4
-.IX Item "ev_timer_init (ev_timer *, callback, ev_tstamp after, ev_tstamp repeat)"
-.PD 0
-.IP "ev_timer_set (ev_timer *, ev_tstamp after, ev_tstamp repeat)" 4
-.IX Item "ev_timer_set (ev_timer *, ev_tstamp after, ev_tstamp repeat)"
-.PD
-Configure the timer to trigger after \f(CW\*(C`after\*(C'\fR seconds. If \f(CW\*(C`repeat\*(C'\fR
-is \f(CW0.\fR, then it will automatically be stopped once the timeout is
-reached. If it is positive, then the timer will automatically be
-configured to trigger again \f(CW\*(C`repeat\*(C'\fR seconds later, again, and again,
-until stopped manually.
-.Sp
-The timer itself will do a best-effort at avoiding drift, that is, if
-you configure a timer to trigger every 10 seconds, then it will normally
-trigger at exactly 10 second intervals. If, however, your program cannot
-keep up with the timer (because it takes longer than those 10 seconds to
-do stuff) the timer will not fire more than once per event loop iteration.
-.IP "ev_timer_again (loop, ev_timer *)" 4
-.IX Item "ev_timer_again (loop, ev_timer *)"
-This will act as if the timer timed out and restart it again if it is
-repeating. The exact semantics are:
-.Sp
-If the timer is pending, its pending status is cleared.
-.Sp
-If the timer is started but non-repeating, stop it (as if it timed out).
-.Sp
-If the timer is repeating, either start it if necessary (with the
-\&\f(CW\*(C`repeat\*(C'\fR value), or reset the running timer to the \f(CW\*(C`repeat\*(C'\fR value.
-.Sp
-This sounds a bit complicated, see \*(L"Be smart about timeouts\*(R", above, for a
-usage example.
-.IP "ev_tstamp ev_timer_remaining (loop, ev_timer *)" 4
-.IX Item "ev_tstamp ev_timer_remaining (loop, ev_timer *)"
-Returns the remaining time until a timer fires. If the timer is active,
-then this time is relative to the current event loop time, otherwise it's
-the timeout value currently configured.
-.Sp
-That is, after an \f(CW\*(C`ev_timer_set (w, 5, 7)\*(C'\fR, \f(CW\*(C`ev_timer_remaining\*(C'\fR returns
-\&\f(CW5\fR. When the timer is started and one second passes, \f(CW\*(C`ev_timer_remaining\*(C'\fR
-will return \f(CW4\fR. When the timer expires and is restarted, it will return
-roughly \f(CW7\fR (likely slightly less as callback invocation takes some time,
-too), and so on.
-.IP "ev_tstamp repeat [read\-write]" 4
-.IX Item "ev_tstamp repeat [read-write]"
-The current \f(CW\*(C`repeat\*(C'\fR value. Will be used each time the watcher times out
-or \f(CW\*(C`ev_timer_again\*(C'\fR is called, and determines the next timeout (if any),
-which is also when any modifications are taken into account.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.PP
-Example: Create a timer that fires after 60 seconds.
-.PP
-.Vb 5
-\&   static void
-\&   one_minute_cb (struct ev_loop *loop, ev_timer *w, int revents)
-\&   {
-\&     .. one minute over, w is actually stopped right here
-\&   }
-\&
-\&   ev_timer mytimer;
-\&   ev_timer_init (&mytimer, one_minute_cb, 60., 0.);
-\&   ev_timer_start (loop, &mytimer);
-.Ve
-.PP
-Example: Create a timeout timer that times out after 10 seconds of
-inactivity.
-.PP
-.Vb 5
-\&   static void
-\&   timeout_cb (struct ev_loop *loop, ev_timer *w, int revents)
-\&   {
-\&     .. ten seconds without any activity
-\&   }
-\&
-\&   ev_timer mytimer;
-\&   ev_timer_init (&mytimer, timeout_cb, 0., 10.); /* note, only repeat used */
-\&   ev_timer_again (&mytimer); /* start timer */
-\&   ev_run (loop, 0);
-\&
-\&   // and in some piece of code that gets executed on any "activity":
-\&   // reset the timeout to start ticking again at 10 seconds
-\&   ev_timer_again (&mytimer);
-.Ve
-.ie n .SS """ev_periodic"" \- to cron or not to cron?"
-.el .SS "\f(CWev_periodic\fP \- to cron or not to cron?"
-.IX Subsection "ev_periodic - to cron or not to cron?"
-Periodic watchers are also timers of a kind, but they are very versatile
-(and unfortunately a bit complex).
-.PP
-Unlike \f(CW\*(C`ev_timer\*(C'\fR, periodic watchers are not based on real time (or
-relative time, the physical time that passes) but on wall clock time
-(absolute time, the thing you can read on your calender or clock). The
-difference is that wall clock time can run faster or slower than real
-time, and time jumps are not uncommon (e.g. when you adjust your
-wrist-watch).
-.PP
-You can tell a periodic watcher to trigger after some specific point
-in time: for example, if you tell a periodic watcher to trigger \*(L"in 10
-seconds\*(R" (by specifying e.g. \f(CW\*(C`ev_now () + 10.\*(C'\fR, that is, an absolute time
-not a delay) and then reset your system clock to January of the previous
-year, then it will take a year or more to trigger the event (unlike an
-\&\f(CW\*(C`ev_timer\*(C'\fR, which would still trigger roughly 10 seconds after starting
-it, as it uses a relative timeout).
-.PP
-\&\f(CW\*(C`ev_periodic\*(C'\fR watchers can also be used to implement vastly more complex
-timers, such as triggering an event on each \*(L"midnight, local time\*(R", or
-other complicated rules. This cannot be done with \f(CW\*(C`ev_timer\*(C'\fR watchers, as
-those cannot react to time jumps.
-.PP
-As with timers, the callback is guaranteed to be invoked only when the
-point in time where it is supposed to trigger has passed. If multiple
-timers become ready during the same loop iteration then the ones with
-earlier time-out values are invoked before ones with later time-out values
-(but this is no longer true when a callback calls \f(CW\*(C`ev_run\*(C'\fR recursively).
-.PP
-\fIWatcher-Specific Functions and Data Members\fR
-.IX Subsection "Watcher-Specific Functions and Data Members"
-.IP "ev_periodic_init (ev_periodic *, callback, ev_tstamp offset, ev_tstamp interval, reschedule_cb)" 4
-.IX Item "ev_periodic_init (ev_periodic *, callback, ev_tstamp offset, ev_tstamp interval, reschedule_cb)"
-.PD 0
-.IP "ev_periodic_set (ev_periodic *, ev_tstamp offset, ev_tstamp interval, reschedule_cb)" 4
-.IX Item "ev_periodic_set (ev_periodic *, ev_tstamp offset, ev_tstamp interval, reschedule_cb)"
-.PD
-Lots of arguments, let's sort it out... There are basically three modes of
-operation, and we will explain them from simplest to most complex:
-.RS 4
-.IP "\(bu" 4
-absolute timer (offset = absolute time, interval = 0, reschedule_cb = 0)
-.Sp
-In this configuration the watcher triggers an event after the wall clock
-time \f(CW\*(C`offset\*(C'\fR has passed. It will not repeat and will not adjust when a
-time jump occurs, that is, if it is to be run at January 1st 2011 then it
-will be stopped and invoked when the system clock reaches or surpasses
-this point in time.
-.IP "\(bu" 4
-repeating interval timer (offset = offset within interval, interval > 0, reschedule_cb = 0)
-.Sp
-In this mode the watcher will always be scheduled to time out at the next
-\&\f(CW\*(C`offset + N * interval\*(C'\fR time (for some integer N, which can also be
-negative) and then repeat, regardless of any time jumps. The \f(CW\*(C`offset\*(C'\fR
-argument is merely an offset into the \f(CW\*(C`interval\*(C'\fR periods.
-.Sp
-This can be used to create timers that do not drift with respect to the
-system clock, for example, here is an \f(CW\*(C`ev_periodic\*(C'\fR that triggers each
-hour, on the hour (with respect to \s-1UTC\s0):
-.Sp
-.Vb 1
-\&   ev_periodic_set (&periodic, 0., 3600., 0);
-.Ve
-.Sp
-This doesn't mean there will always be 3600 seconds in between triggers,
-but only that the callback will be called when the system time shows a
-full hour (\s-1UTC\s0), or more correctly, when the system time is evenly divisible
-by 3600.
-.Sp
-Another way to think about it (for the mathematically inclined) is that
-\&\f(CW\*(C`ev_periodic\*(C'\fR will try to run the callback in this mode at the next possible
-time where \f(CW\*(C`time = offset (mod interval)\*(C'\fR, regardless of any time jumps.
-.Sp
-For numerical stability it is preferable that the \f(CW\*(C`offset\*(C'\fR value is near
-\&\f(CW\*(C`ev_now ()\*(C'\fR (the current time), but there is no range requirement for
-this value, and in fact is often specified as zero.
-.Sp
-Note also that there is an upper limit to how often a timer can fire (\s-1CPU\s0
-speed for example), so if \f(CW\*(C`interval\*(C'\fR is very small then timing stability
-will of course deteriorate. Libev itself tries to be exact to be about one
-millisecond (if the \s-1OS\s0 supports it and the machine is fast enough).
-.IP "\(bu" 4
-manual reschedule mode (offset ignored, interval ignored, reschedule_cb = callback)
-.Sp
-In this mode the values for \f(CW\*(C`interval\*(C'\fR and \f(CW\*(C`offset\*(C'\fR are both being
-ignored. Instead, each time the periodic watcher gets scheduled, the
-reschedule callback will be called with the watcher as first, and the
-current time as second argument.
-.Sp
-\&\s-1NOTE:\s0 \fIThis callback \s-1MUST\s0 \s-1NOT\s0 stop or destroy any periodic watcher, ever,
-or make \s-1ANY\s0 other event loop modifications whatsoever, unless explicitly
-allowed by documentation here\fR.
-.Sp
-If you need to stop it, return \f(CW\*(C`now + 1e30\*(C'\fR (or so, fudge fudge) and stop
-it afterwards (e.g. by starting an \f(CW\*(C`ev_prepare\*(C'\fR watcher, which is the
-only event loop modification you are allowed to do).
-.Sp
-The callback prototype is \f(CW\*(C`ev_tstamp (*reschedule_cb)(ev_periodic
-*w, ev_tstamp now)\*(C'\fR, e.g.:
-.Sp
-.Vb 5
-\&   static ev_tstamp
-\&   my_rescheduler (ev_periodic *w, ev_tstamp now)
-\&   {
-\&     return now + 60.;
-\&   }
-.Ve
-.Sp
-It must return the next time to trigger, based on the passed time value
-(that is, the lowest time value larger than to the second argument). It
-will usually be called just before the callback will be triggered, but
-might be called at other times, too.
-.Sp
-\&\s-1NOTE:\s0 \fIThis callback must always return a time that is higher than or
-equal to the passed \f(CI\*(C`now\*(C'\fI value\fR.
-.Sp
-This can be used to create very complex timers, such as a timer that
-triggers on \*(L"next midnight, local time\*(R". To do this, you would calculate the
-next midnight after \f(CW\*(C`now\*(C'\fR and return the timestamp value for this. How
-you do this is, again, up to you (but it is not trivial, which is the main
-reason I omitted it as an example).
-.RE
-.RS 4
-.RE
-.IP "ev_periodic_again (loop, ev_periodic *)" 4
-.IX Item "ev_periodic_again (loop, ev_periodic *)"
-Simply stops and restarts the periodic watcher again. This is only useful
-when you changed some parameters or the reschedule callback would return
-a different time than the last time it was called (e.g. in a crond like
-program when the crontabs have changed).
-.IP "ev_tstamp ev_periodic_at (ev_periodic *)" 4
-.IX Item "ev_tstamp ev_periodic_at (ev_periodic *)"
-When active, returns the absolute time that the watcher is supposed
-to trigger next. This is not the same as the \f(CW\*(C`offset\*(C'\fR argument to
-\&\f(CW\*(C`ev_periodic_set\*(C'\fR, but indeed works even in interval and manual
-rescheduling modes.
-.IP "ev_tstamp offset [read\-write]" 4
-.IX Item "ev_tstamp offset [read-write]"
-When repeating, this contains the offset value, otherwise this is the
-absolute point in time (the \f(CW\*(C`offset\*(C'\fR value passed to \f(CW\*(C`ev_periodic_set\*(C'\fR,
-although libev might modify this value for better numerical stability).
-.Sp
-Can be modified any time, but changes only take effect when the periodic
-timer fires or \f(CW\*(C`ev_periodic_again\*(C'\fR is being called.
-.IP "ev_tstamp interval [read\-write]" 4
-.IX Item "ev_tstamp interval [read-write]"
-The current interval value. Can be modified any time, but changes only
-take effect when the periodic timer fires or \f(CW\*(C`ev_periodic_again\*(C'\fR is being
-called.
-.IP "ev_tstamp (*reschedule_cb)(ev_periodic *w, ev_tstamp now) [read\-write]" 4
-.IX Item "ev_tstamp (*reschedule_cb)(ev_periodic *w, ev_tstamp now) [read-write]"
-The current reschedule callback, or \f(CW0\fR, if this functionality is
-switched off. Can be changed any time, but changes only take effect when
-the periodic timer fires or \f(CW\*(C`ev_periodic_again\*(C'\fR is being called.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.PP
-Example: Call a callback every hour, or, more precisely, whenever the
-system time is divisible by 3600. The callback invocation times have
-potentially a lot of jitter, but good long-term stability.
-.PP
-.Vb 5
-\&   static void
-\&   clock_cb (struct ev_loop *loop, ev_periodic *w, int revents)
-\&   {
-\&     ... its now a full hour (UTC, or TAI or whatever your clock follows)
-\&   }
-\&
-\&   ev_periodic hourly_tick;
-\&   ev_periodic_init (&hourly_tick, clock_cb, 0., 3600., 0);
-\&   ev_periodic_start (loop, &hourly_tick);
-.Ve
-.PP
-Example: The same as above, but use a reschedule callback to do it:
-.PP
-.Vb 1
-\&   #include <math.h>
-\&
-\&   static ev_tstamp
-\&   my_scheduler_cb (ev_periodic *w, ev_tstamp now)
-\&   {
-\&     return now + (3600. \- fmod (now, 3600.));
-\&   }
-\&
-\&   ev_periodic_init (&hourly_tick, clock_cb, 0., 0., my_scheduler_cb);
-.Ve
-.PP
-Example: Call a callback every hour, starting now:
-.PP
-.Vb 4
-\&   ev_periodic hourly_tick;
-\&   ev_periodic_init (&hourly_tick, clock_cb,
-\&                     fmod (ev_now (loop), 3600.), 3600., 0);
-\&   ev_periodic_start (loop, &hourly_tick);
-.Ve
-.ie n .SS """ev_signal"" \- signal me when a signal gets signalled!"
-.el .SS "\f(CWev_signal\fP \- signal me when a signal gets signalled!"
-.IX Subsection "ev_signal - signal me when a signal gets signalled!"
-Signal watchers will trigger an event when the process receives a specific
-signal one or more times. Even though signals are very asynchronous, libev
-will try its best to deliver signals synchronously, i.e. as part of the
-normal event processing, like any other event.
-.PP
-If you want signals to be delivered truly asynchronously, just use
-\&\f(CW\*(C`sigaction\*(C'\fR as you would do without libev and forget about sharing
-the signal. You can even use \f(CW\*(C`ev_async\*(C'\fR from a signal handler to
-synchronously wake up an event loop.
-.PP
-You can configure as many watchers as you like for the same signal, but
-only within the same loop, i.e. you can watch for \f(CW\*(C`SIGINT\*(C'\fR in your
-default loop and for \f(CW\*(C`SIGIO\*(C'\fR in another loop, but you cannot watch for
-\&\f(CW\*(C`SIGINT\*(C'\fR in both the default loop and another loop at the same time. At
-the moment, \f(CW\*(C`SIGCHLD\*(C'\fR is permanently tied to the default loop.
-.PP
-When the first watcher gets started will libev actually register something
-with the kernel (thus it coexists with your own signal handlers as long as
-you don't register any with libev for the same signal).
-.PP
-If possible and supported, libev will install its handlers with
-\&\f(CW\*(C`SA_RESTART\*(C'\fR (or equivalent) behaviour enabled, so system calls should
-not be unduly interrupted. If you have a problem with system calls getting
-interrupted by signals you can block all signals in an \f(CW\*(C`ev_check\*(C'\fR watcher
-and unblock them in an \f(CW\*(C`ev_prepare\*(C'\fR watcher.
-.PP
-\fIThe special problem of inheritance over fork/execve/pthread_create\fR
-.IX Subsection "The special problem of inheritance over fork/execve/pthread_create"
-.PP
-Both the signal mask (\f(CW\*(C`sigprocmask\*(C'\fR) and the signal disposition
-(\f(CW\*(C`sigaction\*(C'\fR) are unspecified after starting a signal watcher (and after
-stopping it again), that is, libev might or might not block the signal,
-and might or might not set or restore the installed signal handler (but
-see \f(CW\*(C`EVFLAG_NOSIGMASK\*(C'\fR).
-.PP
-While this does not matter for the signal disposition (libev never
-sets signals to \f(CW\*(C`SIG_IGN\*(C'\fR, so handlers will be reset to \f(CW\*(C`SIG_DFL\*(C'\fR on
-\&\f(CW\*(C`execve\*(C'\fR), this matters for the signal mask: many programs do not expect
-certain signals to be blocked.
-.PP
-This means that before calling \f(CW\*(C`exec\*(C'\fR (from the child) you should reset
-the signal mask to whatever \*(L"default\*(R" you expect (all clear is a good
-choice usually).
-.PP
-The simplest way to ensure that the signal mask is reset in the child is
-to install a fork handler with \f(CW\*(C`pthread_atfork\*(C'\fR that resets it. That will
-catch fork calls done by libraries (such as the libc) as well.
-.PP
-In current versions of libev, the signal will not be blocked indefinitely
-unless you use the \f(CW\*(C`signalfd\*(C'\fR \s-1API\s0 (\f(CW\*(C`EV_SIGNALFD\*(C'\fR). While this reduces
-the window of opportunity for problems, it will not go away, as libev
-\&\fIhas\fR to modify the signal mask, at least temporarily.
-.PP
-So I can't stress this enough: \fIIf you do not reset your signal mask when
-you expect it to be empty, you have a race condition in your code\fR. This
-is not a libev-specific thing, this is true for most event libraries.
-.PP
-\fIThe special problem of threads signal handling\fR
-.IX Subsection "The special problem of threads signal handling"
-.PP
-\&\s-1POSIX\s0 threads has problematic signal handling semantics, specifically,
-a lot of functionality (sigfd, sigwait etc.) only really works if all
-threads in a process block signals, which is hard to achieve.
-.PP
-When you want to use sigwait (or mix libev signal handling with your own
-for the same signals), you can tackle this problem by globally blocking
-all signals before creating any threads (or creating them with a fully set
-sigprocmask) and also specifying the \f(CW\*(C`EVFLAG_NOSIGMASK\*(C'\fR when creating
-loops. Then designate one thread as \*(L"signal receiver thread\*(R" which handles
-these signals. You can pass on any signals that libev might be interested
-in by calling \f(CW\*(C`ev_feed_signal\*(C'\fR.
-.PP
-\fIWatcher-Specific Functions and Data Members\fR
-.IX Subsection "Watcher-Specific Functions and Data Members"
-.IP "ev_signal_init (ev_signal *, callback, int signum)" 4
-.IX Item "ev_signal_init (ev_signal *, callback, int signum)"
-.PD 0
-.IP "ev_signal_set (ev_signal *, int signum)" 4
-.IX Item "ev_signal_set (ev_signal *, int signum)"
-.PD
-Configures the watcher to trigger on the given signal number (usually one
-of the \f(CW\*(C`SIGxxx\*(C'\fR constants).
-.IP "int signum [read\-only]" 4
-.IX Item "int signum [read-only]"
-The signal the watcher watches out for.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.PP
-Example: Try to exit cleanly on \s-1SIGINT\s0.
-.PP
-.Vb 5
-\&   static void
-\&   sigint_cb (struct ev_loop *loop, ev_signal *w, int revents)
-\&   {
-\&     ev_break (loop, EVBREAK_ALL);
-\&   }
-\&
-\&   ev_signal signal_watcher;
-\&   ev_signal_init (&signal_watcher, sigint_cb, SIGINT);
-\&   ev_signal_start (loop, &signal_watcher);
-.Ve
-.ie n .SS """ev_child"" \- watch out for process status changes"
-.el .SS "\f(CWev_child\fP \- watch out for process status changes"
-.IX Subsection "ev_child - watch out for process status changes"
-Child watchers trigger when your process receives a \s-1SIGCHLD\s0 in response to
-some child status changes (most typically when a child of yours dies or
-exits). It is permissible to install a child watcher \fIafter\fR the child
-has been forked (which implies it might have already exited), as long
-as the event loop isn't entered (or is continued from a watcher), i.e.,
-forking and then immediately registering a watcher for the child is fine,
-but forking and registering a watcher a few event loop iterations later or
-in the next callback invocation is not.
-.PP
-Only the default event loop is capable of handling signals, and therefore
-you can only register child watchers in the default event loop.
-.PP
-Due to some design glitches inside libev, child watchers will always be
-handled at maximum priority (their priority is set to \f(CW\*(C`EV_MAXPRI\*(C'\fR by
-libev)
-.PP
-\fIProcess Interaction\fR
-.IX Subsection "Process Interaction"
-.PP
-Libev grabs \f(CW\*(C`SIGCHLD\*(C'\fR as soon as the default event loop is
-initialised. This is necessary to guarantee proper behaviour even if the
-first child watcher is started after the child exits. The occurrence
-of \f(CW\*(C`SIGCHLD\*(C'\fR is recorded asynchronously, but child reaping is done
-synchronously as part of the event loop processing. Libev always reaps all
-children, even ones not watched.
-.PP
-\fIOverriding the Built-In Processing\fR
-.IX Subsection "Overriding the Built-In Processing"
-.PP
-Libev offers no special support for overriding the built-in child
-processing, but if your application collides with libev's default child
-handler, you can override it easily by installing your own handler for
-\&\f(CW\*(C`SIGCHLD\*(C'\fR after initialising the default loop, and making sure the
-default loop never gets destroyed. You are encouraged, however, to use an
-event-based approach to child reaping and thus use libev's support for
-that, so other libev users can use \f(CW\*(C`ev_child\*(C'\fR watchers freely.
-.PP
-\fIStopping the Child Watcher\fR
-.IX Subsection "Stopping the Child Watcher"
-.PP
-Currently, the child watcher never gets stopped, even when the
-child terminates, so normally one needs to stop the watcher in the
-callback. Future versions of libev might stop the watcher automatically
-when a child exit is detected (calling \f(CW\*(C`ev_child_stop\*(C'\fR twice is not a
-problem).
-.PP
-\fIWatcher-Specific Functions and Data Members\fR
-.IX Subsection "Watcher-Specific Functions and Data Members"
-.IP "ev_child_init (ev_child *, callback, int pid, int trace)" 4
-.IX Item "ev_child_init (ev_child *, callback, int pid, int trace)"
-.PD 0
-.IP "ev_child_set (ev_child *, int pid, int trace)" 4
-.IX Item "ev_child_set (ev_child *, int pid, int trace)"
-.PD
-Configures the watcher to wait for status changes of process \f(CW\*(C`pid\*(C'\fR (or
-\&\fIany\fR process if \f(CW\*(C`pid\*(C'\fR is specified as \f(CW0\fR). The callback can look
-at the \f(CW\*(C`rstatus\*(C'\fR member of the \f(CW\*(C`ev_child\*(C'\fR watcher structure to see
-the status word (use the macros from \f(CW\*(C`sys/wait.h\*(C'\fR and see your systems
-\&\f(CW\*(C`waitpid\*(C'\fR documentation). The \f(CW\*(C`rpid\*(C'\fR member contains the pid of the
-process causing the status change. \f(CW\*(C`trace\*(C'\fR must be either \f(CW0\fR (only
-activate the watcher when the process terminates) or \f(CW1\fR (additionally
-activate the watcher when the process is stopped or continued).
-.IP "int pid [read\-only]" 4
-.IX Item "int pid [read-only]"
-The process id this watcher watches out for, or \f(CW0\fR, meaning any process id.
-.IP "int rpid [read\-write]" 4
-.IX Item "int rpid [read-write]"
-The process id that detected a status change.
-.IP "int rstatus [read\-write]" 4
-.IX Item "int rstatus [read-write]"
-The process exit/trace status caused by \f(CW\*(C`rpid\*(C'\fR (see your systems
-\&\f(CW\*(C`waitpid\*(C'\fR and \f(CW\*(C`sys/wait.h\*(C'\fR documentation for details).
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.PP
-Example: \f(CW\*(C`fork()\*(C'\fR a new process and install a child handler to wait for
-its completion.
-.PP
-.Vb 1
-\&   ev_child cw;
-\&
-\&   static void
-\&   child_cb (EV_P_ ev_child *w, int revents)
-\&   {
-\&     ev_child_stop (EV_A_ w);
-\&     printf ("process %d exited with status %x\en", w\->rpid, w\->rstatus);
-\&   }
-\&
-\&   pid_t pid = fork ();
-\&
-\&   if (pid < 0)
-\&     // error
-\&   else if (pid == 0)
-\&     {
-\&       // the forked child executes here
-\&       exit (1);
-\&     }
-\&   else
-\&     {
-\&       ev_child_init (&cw, child_cb, pid, 0);
-\&       ev_child_start (EV_DEFAULT_ &cw);
-\&     }
-.Ve
-.ie n .SS """ev_stat"" \- did the file attributes just change?"
-.el .SS "\f(CWev_stat\fP \- did the file attributes just change?"
-.IX Subsection "ev_stat - did the file attributes just change?"
-This watches a file system path for attribute changes. That is, it calls
-\&\f(CW\*(C`stat\*(C'\fR on that path in regular intervals (or when the \s-1OS\s0 says it changed)
-and sees if it changed compared to the last time, invoking the callback if
-it did.
-.PP
-The path does not need to exist: changing from \*(L"path exists\*(R" to \*(L"path does
-not exist\*(R" is a status change like any other. The condition \*(L"path does not
-exist\*(R" (or more correctly \*(L"path cannot be stat'ed\*(R") is signified by the
-\&\f(CW\*(C`st_nlink\*(C'\fR field being zero (which is otherwise always forced to be at
-least one) and all the other fields of the stat buffer having unspecified
-contents.
-.PP
-The path \fImust not\fR end in a slash or contain special components such as
-\&\f(CW\*(C`.\*(C'\fR or \f(CW\*(C`..\*(C'\fR. The path \fIshould\fR be absolute: If it is relative and
-your working directory changes, then the behaviour is undefined.
-.PP
-Since there is no portable change notification interface available, the
-portable implementation simply calls \f(CWstat(2)\fR regularly on the path
-to see if it changed somehow. You can specify a recommended polling
-interval for this case. If you specify a polling interval of \f(CW0\fR (highly
-recommended!) then a \fIsuitable, unspecified default\fR value will be used
-(which you can expect to be around five seconds, although this might
-change dynamically). Libev will also impose a minimum interval which is
-currently around \f(CW0.1\fR, but that's usually overkill.
-.PP
-This watcher type is not meant for massive numbers of stat watchers,
-as even with OS-supported change notifications, this can be
-resource-intensive.
-.PP
-At the time of this writing, the only OS-specific interface implemented
-is the Linux inotify interface (implementing kqueue support is left as an
-exercise for the reader. Note, however, that the author sees no way of
-implementing \f(CW\*(C`ev_stat\*(C'\fR semantics with kqueue, except as a hint).
-.PP
-\fI\s-1ABI\s0 Issues (Largefile Support)\fR
-.IX Subsection "ABI Issues (Largefile Support)"
-.PP
-Libev by default (unless the user overrides this) uses the default
-compilation environment, which means that on systems with large file
-support disabled by default, you get the 32 bit version of the stat
-structure. When using the library from programs that change the \s-1ABI\s0 to
-use 64 bit file offsets the programs will fail. In that case you have to
-compile libev with the same flags to get binary compatibility. This is
-obviously the case with any flags that change the \s-1ABI\s0, but the problem is
-most noticeably displayed with ev_stat and large file support.
-.PP
-The solution for this is to lobby your distribution maker to make large
-file interfaces available by default (as e.g. FreeBSD does) and not
-optional. Libev cannot simply switch on large file support because it has
-to exchange stat structures with application programs compiled using the
-default compilation environment.
-.PP
-\fIInotify and Kqueue\fR
-.IX Subsection "Inotify and Kqueue"
-.PP
-When \f(CW\*(C`inotify (7)\*(C'\fR support has been compiled into libev and present at
-runtime, it will be used to speed up change detection where possible. The
-inotify descriptor will be created lazily when the first \f(CW\*(C`ev_stat\*(C'\fR
-watcher is being started.
-.PP
-Inotify presence does not change the semantics of \f(CW\*(C`ev_stat\*(C'\fR watchers
-except that changes might be detected earlier, and in some cases, to avoid
-making regular \f(CW\*(C`stat\*(C'\fR calls. Even in the presence of inotify support
-there are many cases where libev has to resort to regular \f(CW\*(C`stat\*(C'\fR polling,
-but as long as kernel 2.6.25 or newer is used (2.6.24 and older have too
-many bugs), the path exists (i.e. stat succeeds), and the path resides on
-a local filesystem (libev currently assumes only ext2/3, jfs, reiserfs and
-xfs are fully working) libev usually gets away without polling.
-.PP
-There is no support for kqueue, as apparently it cannot be used to
-implement this functionality, due to the requirement of having a file
-descriptor open on the object at all times, and detecting renames, unlinks
-etc. is difficult.
-.PP
-\fI\f(CI\*(C`stat ()\*(C'\fI is a synchronous operation\fR
-.IX Subsection "stat () is a synchronous operation"
-.PP
-Libev doesn't normally do any kind of I/O itself, and so is not blocking
-the process. The exception are \f(CW\*(C`ev_stat\*(C'\fR watchers \- those call \f(CW\*(C`stat
-()\*(C'\fR, which is a synchronous operation.
-.PP
-For local paths, this usually doesn't matter: unless the system is very
-busy or the intervals between stat's are large, a stat call will be fast,
-as the path data is usually in memory already (except when starting the
-watcher).
-.PP
-For networked file systems, calling \f(CW\*(C`stat ()\*(C'\fR can block an indefinite
-time due to network issues, and even under good conditions, a stat call
-often takes multiple milliseconds.
-.PP
-Therefore, it is best to avoid using \f(CW\*(C`ev_stat\*(C'\fR watchers on networked
-paths, although this is fully supported by libev.
-.PP
-\fIThe special problem of stat time resolution\fR
-.IX Subsection "The special problem of stat time resolution"
-.PP
-The \f(CW\*(C`stat ()\*(C'\fR system call only supports full-second resolution portably,
-and even on systems where the resolution is higher, most file systems
-still only support whole seconds.
-.PP
-That means that, if the time is the only thing that changes, you can
-easily miss updates: on the first update, \f(CW\*(C`ev_stat\*(C'\fR detects a change and
-calls your callback, which does something. When there is another update
-within the same second, \f(CW\*(C`ev_stat\*(C'\fR will be unable to detect unless the
-stat data does change in other ways (e.g. file size).
-.PP
-The solution to this is to delay acting on a change for slightly more
-than a second (or till slightly after the next full second boundary), using
-a roughly one-second-delay \f(CW\*(C`ev_timer\*(C'\fR (e.g. \f(CW\*(C`ev_timer_set (w, 0., 1.02);
-ev_timer_again (loop, w)\*(C'\fR).
-.PP
-The \f(CW.02\fR offset is added to work around small timing inconsistencies
-of some operating systems (where the second counter of the current time
-might be be delayed. One such system is the Linux kernel, where a call to
-\&\f(CW\*(C`gettimeofday\*(C'\fR might return a timestamp with a full second later than
-a subsequent \f(CW\*(C`time\*(C'\fR call \- if the equivalent of \f(CW\*(C`time ()\*(C'\fR is used to
-update file times then there will be a small window where the kernel uses
-the previous second to update file times but libev might already execute
-the timer callback).
-.PP
-\fIWatcher-Specific Functions and Data Members\fR
-.IX Subsection "Watcher-Specific Functions and Data Members"
-.IP "ev_stat_init (ev_stat *, callback, const char *path, ev_tstamp interval)" 4
-.IX Item "ev_stat_init (ev_stat *, callback, const char *path, ev_tstamp interval)"
-.PD 0
-.IP "ev_stat_set (ev_stat *, const char *path, ev_tstamp interval)" 4
-.IX Item "ev_stat_set (ev_stat *, const char *path, ev_tstamp interval)"
-.PD
-Configures the watcher to wait for status changes of the given
-\&\f(CW\*(C`path\*(C'\fR. The \f(CW\*(C`interval\*(C'\fR is a hint on how quickly a change is expected to
-be detected and should normally be specified as \f(CW0\fR to let libev choose
-a suitable value. The memory pointed to by \f(CW\*(C`path\*(C'\fR must point to the same
-path for as long as the watcher is active.
-.Sp
-The callback will receive an \f(CW\*(C`EV_STAT\*(C'\fR event when a change was detected,
-relative to the attributes at the time the watcher was started (or the
-last change was detected).
-.IP "ev_stat_stat (loop, ev_stat *)" 4
-.IX Item "ev_stat_stat (loop, ev_stat *)"
-Updates the stat buffer immediately with new values. If you change the
-watched path in your callback, you could call this function to avoid
-detecting this change (while introducing a race condition if you are not
-the only one changing the path). Can also be useful simply to find out the
-new values.
-.IP "ev_statdata attr [read\-only]" 4
-.IX Item "ev_statdata attr [read-only]"
-The most-recently detected attributes of the file. Although the type is
-\&\f(CW\*(C`ev_statdata\*(C'\fR, this is usually the (or one of the) \f(CW\*(C`struct stat\*(C'\fR types
-suitable for your system, but you can only rely on the POSIX-standardised
-members to be present. If the \f(CW\*(C`st_nlink\*(C'\fR member is \f(CW0\fR, then there was
-some error while \f(CW\*(C`stat\*(C'\fRing the file.
-.IP "ev_statdata prev [read\-only]" 4
-.IX Item "ev_statdata prev [read-only]"
-The previous attributes of the file. The callback gets invoked whenever
-\&\f(CW\*(C`prev\*(C'\fR != \f(CW\*(C`attr\*(C'\fR, or, more precisely, one or more of these members
-differ: \f(CW\*(C`st_dev\*(C'\fR, \f(CW\*(C`st_ino\*(C'\fR, \f(CW\*(C`st_mode\*(C'\fR, \f(CW\*(C`st_nlink\*(C'\fR, \f(CW\*(C`st_uid\*(C'\fR,
-\&\f(CW\*(C`st_gid\*(C'\fR, \f(CW\*(C`st_rdev\*(C'\fR, \f(CW\*(C`st_size\*(C'\fR, \f(CW\*(C`st_atime\*(C'\fR, \f(CW\*(C`st_mtime\*(C'\fR, \f(CW\*(C`st_ctime\*(C'\fR.
-.IP "ev_tstamp interval [read\-only]" 4
-.IX Item "ev_tstamp interval [read-only]"
-The specified interval.
-.IP "const char *path [read\-only]" 4
-.IX Item "const char *path [read-only]"
-The file system path that is being watched.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.PP
-Example: Watch \f(CW\*(C`/etc/passwd\*(C'\fR for attribute changes.
-.PP
-.Vb 10
-\&   static void
-\&   passwd_cb (struct ev_loop *loop, ev_stat *w, int revents)
-\&   {
-\&     /* /etc/passwd changed in some way */
-\&     if (w\->attr.st_nlink)
-\&       {
-\&         printf ("passwd current size  %ld\en", (long)w\->attr.st_size);
-\&         printf ("passwd current atime %ld\en", (long)w\->attr.st_mtime);
-\&         printf ("passwd current mtime %ld\en", (long)w\->attr.st_mtime);
-\&       }
-\&     else
-\&       /* you shalt not abuse printf for puts */
-\&       puts ("wow, /etc/passwd is not there, expect problems. "
-\&             "if this is windows, they already arrived\en");
-\&   }
-\&
-\&   ...
-\&   ev_stat passwd;
-\&
-\&   ev_stat_init (&passwd, passwd_cb, "/etc/passwd", 0.);
-\&   ev_stat_start (loop, &passwd);
-.Ve
-.PP
-Example: Like above, but additionally use a one-second delay so we do not
-miss updates (however, frequent updates will delay processing, too, so
-one might do the work both on \f(CW\*(C`ev_stat\*(C'\fR callback invocation \fIand\fR on
-\&\f(CW\*(C`ev_timer\*(C'\fR callback invocation).
-.PP
-.Vb 2
-\&   static ev_stat passwd;
-\&   static ev_timer timer;
-\&
-\&   static void
-\&   timer_cb (EV_P_ ev_timer *w, int revents)
-\&   {
-\&     ev_timer_stop (EV_A_ w);
-\&
-\&     /* now it\*(Aqs one second after the most recent passwd change */
-\&   }
-\&
-\&   static void
-\&   stat_cb (EV_P_ ev_stat *w, int revents)
-\&   {
-\&     /* reset the one\-second timer */
-\&     ev_timer_again (EV_A_ &timer);
-\&   }
-\&
-\&   ...
-\&   ev_stat_init (&passwd, stat_cb, "/etc/passwd", 0.);
-\&   ev_stat_start (loop, &passwd);
-\&   ev_timer_init (&timer, timer_cb, 0., 1.02);
-.Ve
-.ie n .SS """ev_idle"" \- when you've got nothing better to do..."
-.el .SS "\f(CWev_idle\fP \- when you've got nothing better to do..."
-.IX Subsection "ev_idle - when you've got nothing better to do..."
-Idle watchers trigger events when no other events of the same or higher
-priority are pending (prepare, check and other idle watchers do not count
-as receiving \*(L"events\*(R").
-.PP
-That is, as long as your process is busy handling sockets or timeouts
-(or even signals, imagine) of the same or higher priority it will not be
-triggered. But when your process is idle (or only lower-priority watchers
-are pending), the idle watchers are being called once per event loop
-iteration \- until stopped, that is, or your process receives more events
-and becomes busy again with higher priority stuff.
-.PP
-The most noteworthy effect is that as long as any idle watchers are
-active, the process will not block when waiting for new events.
-.PP
-Apart from keeping your process non-blocking (which is a useful
-effect on its own sometimes), idle watchers are a good place to do
-\&\*(L"pseudo-background processing\*(R", or delay processing stuff to after the
-event loop has handled all outstanding events.
-.PP
-\fIWatcher-Specific Functions and Data Members\fR
-.IX Subsection "Watcher-Specific Functions and Data Members"
-.IP "ev_idle_init (ev_idle *, callback)" 4
-.IX Item "ev_idle_init (ev_idle *, callback)"
-Initialises and configures the idle watcher \- it has no parameters of any
-kind. There is a \f(CW\*(C`ev_idle_set\*(C'\fR macro, but using it is utterly pointless,
-believe me.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.PP
-Example: Dynamically allocate an \f(CW\*(C`ev_idle\*(C'\fR watcher, start it, and in the
-callback, free it. Also, use no error checking, as usual.
-.PP
-.Vb 7
-\&   static void
-\&   idle_cb (struct ev_loop *loop, ev_idle *w, int revents)
-\&   {
-\&     free (w);
-\&     // now do something you wanted to do when the program has
-\&     // no longer anything immediate to do.
-\&   }
-\&
-\&   ev_idle *idle_watcher = malloc (sizeof (ev_idle));
-\&   ev_idle_init (idle_watcher, idle_cb);
-\&   ev_idle_start (loop, idle_watcher);
-.Ve
-.ie n .SS """ev_prepare"" and ""ev_check"" \- customise your event loop!"
-.el .SS "\f(CWev_prepare\fP and \f(CWev_check\fP \- customise your event loop!"
-.IX Subsection "ev_prepare and ev_check - customise your event loop!"
-Prepare and check watchers are usually (but not always) used in pairs:
-prepare watchers get invoked before the process blocks and check watchers
-afterwards.
-.PP
-You \fImust not\fR call \f(CW\*(C`ev_run\*(C'\fR or similar functions that enter
-the current event loop from either \f(CW\*(C`ev_prepare\*(C'\fR or \f(CW\*(C`ev_check\*(C'\fR
-watchers. Other loops than the current one are fine, however. The
-rationale behind this is that you do not need to check for recursion in
-those watchers, i.e. the sequence will always be \f(CW\*(C`ev_prepare\*(C'\fR, blocking,
-\&\f(CW\*(C`ev_check\*(C'\fR so if you have one watcher of each kind they will always be
-called in pairs bracketing the blocking call.
-.PP
-Their main purpose is to integrate other event mechanisms into libev and
-their use is somewhat advanced. They could be used, for example, to track
-variable changes, implement your own watchers, integrate net-snmp or a
-coroutine library and lots more. They are also occasionally useful if
-you cache some data and want to flush it before blocking (for example,
-in X programs you might want to do an \f(CW\*(C`XFlush ()\*(C'\fR in an \f(CW\*(C`ev_prepare\*(C'\fR
-watcher).
-.PP
-This is done by examining in each prepare call which file descriptors
-need to be watched by the other library, registering \f(CW\*(C`ev_io\*(C'\fR watchers
-for them and starting an \f(CW\*(C`ev_timer\*(C'\fR watcher for any timeouts (many
-libraries provide exactly this functionality). Then, in the check watcher,
-you check for any events that occurred (by checking the pending status
-of all watchers and stopping them) and call back into the library. The
-I/O and timer callbacks will never actually be called (but must be valid
-nevertheless, because you never know, you know?).
-.PP
-As another example, the Perl Coro module uses these hooks to integrate
-coroutines into libev programs, by yielding to other active coroutines
-during each prepare and only letting the process block if no coroutines
-are ready to run (it's actually more complicated: it only runs coroutines
-with priority higher than or equal to the event loop and one coroutine
-of lower priority, but only once, using idle watchers to keep the event
-loop from blocking if lower-priority coroutines are active, thus mapping
-low-priority coroutines to idle/background tasks).
-.PP
-It is recommended to give \f(CW\*(C`ev_check\*(C'\fR watchers highest (\f(CW\*(C`EV_MAXPRI\*(C'\fR)
-priority, to ensure that they are being run before any other watchers
-after the poll (this doesn't matter for \f(CW\*(C`ev_prepare\*(C'\fR watchers).
-.PP
-Also, \f(CW\*(C`ev_check\*(C'\fR watchers (and \f(CW\*(C`ev_prepare\*(C'\fR watchers, too) should not
-activate (\*(L"feed\*(R") events into libev. While libev fully supports this, they
-might get executed before other \f(CW\*(C`ev_check\*(C'\fR watchers did their job. As
-\&\f(CW\*(C`ev_check\*(C'\fR watchers are often used to embed other (non-libev) event
-loops those other event loops might be in an unusable state until their
-\&\f(CW\*(C`ev_check\*(C'\fR watcher ran (always remind yourself to coexist peacefully with
-others).
-.PP
-\fIWatcher-Specific Functions and Data Members\fR
-.IX Subsection "Watcher-Specific Functions and Data Members"
-.IP "ev_prepare_init (ev_prepare *, callback)" 4
-.IX Item "ev_prepare_init (ev_prepare *, callback)"
-.PD 0
-.IP "ev_check_init (ev_check *, callback)" 4
-.IX Item "ev_check_init (ev_check *, callback)"
-.PD
-Initialises and configures the prepare or check watcher \- they have no
-parameters of any kind. There are \f(CW\*(C`ev_prepare_set\*(C'\fR and \f(CW\*(C`ev_check_set\*(C'\fR
-macros, but using them is utterly, utterly, utterly and completely
-pointless.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.PP
-There are a number of principal ways to embed other event loops or modules
-into libev. Here are some ideas on how to include libadns into libev
-(there is a Perl module named \f(CW\*(C`EV::ADNS\*(C'\fR that does this, which you could
-use as a working example. Another Perl module named \f(CW\*(C`EV::Glib\*(C'\fR embeds a
-Glib main context into libev, and finally, \f(CW\*(C`Glib::EV\*(C'\fR embeds \s-1EV\s0 into the
-Glib event loop).
-.PP
-Method 1: Add \s-1IO\s0 watchers and a timeout watcher in a prepare handler,
-and in a check watcher, destroy them and call into libadns. What follows
-is pseudo-code only of course. This requires you to either use a low
-priority for the check watcher or use \f(CW\*(C`ev_clear_pending\*(C'\fR explicitly, as
-the callbacks for the IO/timeout watchers might not have been called yet.
-.PP
-.Vb 2
-\&   static ev_io iow [nfd];
-\&   static ev_timer tw;
-\&
-\&   static void
-\&   io_cb (struct ev_loop *loop, ev_io *w, int revents)
-\&   {
-\&   }
-\&
-\&   // create io watchers for each fd and a timer before blocking
-\&   static void
-\&   adns_prepare_cb (struct ev_loop *loop, ev_prepare *w, int revents)
-\&   {
-\&     int timeout = 3600000;
-\&     struct pollfd fds [nfd];
-\&     // actual code will need to loop here and realloc etc.
-\&     adns_beforepoll (ads, fds, &nfd, &timeout, timeval_from (ev_time ()));
-\&
-\&     /* the callback is illegal, but won\*(Aqt be called as we stop during check */
-\&     ev_timer_init (&tw, 0, timeout * 1e\-3, 0.);
-\&     ev_timer_start (loop, &tw);
-\&
-\&     // create one ev_io per pollfd
-\&     for (int i = 0; i < nfd; ++i)
-\&       {
-\&         ev_io_init (iow + i, io_cb, fds [i].fd,
-\&           ((fds [i].events & POLLIN ? EV_READ : 0)
-\&            | (fds [i].events & POLLOUT ? EV_WRITE : 0)));
-\&
-\&         fds [i].revents = 0;
-\&         ev_io_start (loop, iow + i);
-\&       }
-\&   }
-\&
-\&   // stop all watchers after blocking
-\&   static void
-\&   adns_check_cb (struct ev_loop *loop, ev_check *w, int revents)
-\&   {
-\&     ev_timer_stop (loop, &tw);
-\&
-\&     for (int i = 0; i < nfd; ++i)
-\&       {
-\&         // set the relevant poll flags
-\&         // could also call adns_processreadable etc. here
-\&         struct pollfd *fd = fds + i;
-\&         int revents = ev_clear_pending (iow + i);
-\&         if (revents & EV_READ ) fd\->revents |= fd\->events & POLLIN;
-\&         if (revents & EV_WRITE) fd\->revents |= fd\->events & POLLOUT;
-\&
-\&         // now stop the watcher
-\&         ev_io_stop (loop, iow + i);
-\&       }
-\&
-\&     adns_afterpoll (adns, fds, nfd, timeval_from (ev_now (loop));
-\&   }
-.Ve
-.PP
-Method 2: This would be just like method 1, but you run \f(CW\*(C`adns_afterpoll\*(C'\fR
-in the prepare watcher and would dispose of the check watcher.
-.PP
-Method 3: If the module to be embedded supports explicit event
-notification (libadns does), you can also make use of the actual watcher
-callbacks, and only destroy/create the watchers in the prepare watcher.
-.PP
-.Vb 5
-\&   static void
-\&   timer_cb (EV_P_ ev_timer *w, int revents)
-\&   {
-\&     adns_state ads = (adns_state)w\->data;
-\&     update_now (EV_A);
-\&
-\&     adns_processtimeouts (ads, &tv_now);
-\&   }
-\&
-\&   static void
-\&   io_cb (EV_P_ ev_io *w, int revents)
-\&   {
-\&     adns_state ads = (adns_state)w\->data;
-\&     update_now (EV_A);
-\&
-\&     if (revents & EV_READ ) adns_processreadable  (ads, w\->fd, &tv_now);
-\&     if (revents & EV_WRITE) adns_processwriteable (ads, w\->fd, &tv_now);
-\&   }
-\&
-\&   // do not ever call adns_afterpoll
-.Ve
-.PP
-Method 4: Do not use a prepare or check watcher because the module you
-want to embed is not flexible enough to support it. Instead, you can
-override their poll function. The drawback with this solution is that the
-main loop is now no longer controllable by \s-1EV\s0. The \f(CW\*(C`Glib::EV\*(C'\fR module uses
-this approach, effectively embedding \s-1EV\s0 as a client into the horrible
-libglib event loop.
-.PP
-.Vb 4
-\&   static gint
-\&   event_poll_func (GPollFD *fds, guint nfds, gint timeout)
-\&   {
-\&     int got_events = 0;
-\&
-\&     for (n = 0; n < nfds; ++n)
-\&       // create/start io watcher that sets the relevant bits in fds[n] and increment got_events
-\&
-\&     if (timeout >= 0)
-\&       // create/start timer
-\&
-\&     // poll
-\&     ev_run (EV_A_ 0);
-\&
-\&     // stop timer again
-\&     if (timeout >= 0)
-\&       ev_timer_stop (EV_A_ &to);
-\&
-\&     // stop io watchers again \- their callbacks should have set
-\&     for (n = 0; n < nfds; ++n)
-\&       ev_io_stop (EV_A_ iow [n]);
-\&
-\&     return got_events;
-\&   }
-.Ve
-.ie n .SS """ev_embed"" \- when one backend isn't enough..."
-.el .SS "\f(CWev_embed\fP \- when one backend isn't enough..."
-.IX Subsection "ev_embed - when one backend isn't enough..."
-This is a rather advanced watcher type that lets you embed one event loop
-into another (currently only \f(CW\*(C`ev_io\*(C'\fR events are supported in the embedded
-loop, other types of watchers might be handled in a delayed or incorrect
-fashion and must not be used).
-.PP
-There are primarily two reasons you would want that: work around bugs and
-prioritise I/O.
-.PP
-As an example for a bug workaround, the kqueue backend might only support
-sockets on some platform, so it is unusable as generic backend, but you
-still want to make use of it because you have many sockets and it scales
-so nicely. In this case, you would create a kqueue-based loop and embed
-it into your default loop (which might use e.g. poll). Overall operation
-will be a bit slower because first libev has to call \f(CW\*(C`poll\*(C'\fR and then
-\&\f(CW\*(C`kevent\*(C'\fR, but at least you can use both mechanisms for what they are
-best: \f(CW\*(C`kqueue\*(C'\fR for scalable sockets and \f(CW\*(C`poll\*(C'\fR if you want it to work :)
-.PP
-As for prioritising I/O: under rare circumstances you have the case where
-some fds have to be watched and handled very quickly (with low latency),
-and even priorities and idle watchers might have too much overhead. In
-this case you would put all the high priority stuff in one loop and all
-the rest in a second one, and embed the second one in the first.
-.PP
-As long as the watcher is active, the callback will be invoked every
-time there might be events pending in the embedded loop. The callback
-must then call \f(CW\*(C`ev_embed_sweep (mainloop, watcher)\*(C'\fR to make a single
-sweep and invoke their callbacks (the callback doesn't need to invoke the
-\&\f(CW\*(C`ev_embed_sweep\*(C'\fR function directly, it could also start an idle watcher
-to give the embedded loop strictly lower priority for example).
-.PP
-You can also set the callback to \f(CW0\fR, in which case the embed watcher
-will automatically execute the embedded loop sweep whenever necessary.
-.PP
-Fork detection will be handled transparently while the \f(CW\*(C`ev_embed\*(C'\fR watcher
-is active, i.e., the embedded loop will automatically be forked when the
-embedding loop forks. In other cases, the user is responsible for calling
-\&\f(CW\*(C`ev_loop_fork\*(C'\fR on the embedded loop.
-.PP
-Unfortunately, not all backends are embeddable: only the ones returned by
-\&\f(CW\*(C`ev_embeddable_backends\*(C'\fR are, which, unfortunately, does not include any
-portable one.
-.PP
-So when you want to use this feature you will always have to be prepared
-that you cannot get an embeddable loop. The recommended way to get around
-this is to have a separate variables for your embeddable loop, try to
-create it, and if that fails, use the normal loop for everything.
-.PP
-\fI\f(CI\*(C`ev_embed\*(C'\fI and fork\fR
-.IX Subsection "ev_embed and fork"
-.PP
-While the \f(CW\*(C`ev_embed\*(C'\fR watcher is running, forks in the embedding loop will
-automatically be applied to the embedded loop as well, so no special
-fork handling is required in that case. When the watcher is not running,
-however, it is still the task of the libev user to call \f(CW\*(C`ev_loop_fork ()\*(C'\fR
-as applicable.
-.PP
-\fIWatcher-Specific Functions and Data Members\fR
-.IX Subsection "Watcher-Specific Functions and Data Members"
-.IP "ev_embed_init (ev_embed *, callback, struct ev_loop *embedded_loop)" 4
-.IX Item "ev_embed_init (ev_embed *, callback, struct ev_loop *embedded_loop)"
-.PD 0
-.IP "ev_embed_set (ev_embed *, callback, struct ev_loop *embedded_loop)" 4
-.IX Item "ev_embed_set (ev_embed *, callback, struct ev_loop *embedded_loop)"
-.PD
-Configures the watcher to embed the given loop, which must be
-embeddable. If the callback is \f(CW0\fR, then \f(CW\*(C`ev_embed_sweep\*(C'\fR will be
-invoked automatically, otherwise it is the responsibility of the callback
-to invoke it (it will continue to be called until the sweep has been done,
-if you do not want that, you need to temporarily stop the embed watcher).
-.IP "ev_embed_sweep (loop, ev_embed *)" 4
-.IX Item "ev_embed_sweep (loop, ev_embed *)"
-Make a single, non-blocking sweep over the embedded loop. This works
-similarly to \f(CW\*(C`ev_run (embedded_loop, EVRUN_NOWAIT)\*(C'\fR, but in the most
-appropriate way for embedded loops.
-.IP "struct ev_loop *other [read\-only]" 4
-.IX Item "struct ev_loop *other [read-only]"
-The embedded event loop.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.PP
-Example: Try to get an embeddable event loop and embed it into the default
-event loop. If that is not possible, use the default loop. The default
-loop is stored in \f(CW\*(C`loop_hi\*(C'\fR, while the embeddable loop is stored in
-\&\f(CW\*(C`loop_lo\*(C'\fR (which is \f(CW\*(C`loop_hi\*(C'\fR in the case no embeddable loop can be
-used).
-.PP
-.Vb 3
-\&   struct ev_loop *loop_hi = ev_default_init (0);
-\&   struct ev_loop *loop_lo = 0;
-\&   ev_embed embed;
-\&   
-\&   // see if there is a chance of getting one that works
-\&   // (remember that a flags value of 0 means autodetection)
-\&   loop_lo = ev_embeddable_backends () & ev_recommended_backends ()
-\&     ? ev_loop_new (ev_embeddable_backends () & ev_recommended_backends ())
-\&     : 0;
-\&
-\&   // if we got one, then embed it, otherwise default to loop_hi
-\&   if (loop_lo)
-\&     {
-\&       ev_embed_init (&embed, 0, loop_lo);
-\&       ev_embed_start (loop_hi, &embed);
-\&     }
-\&   else
-\&     loop_lo = loop_hi;
-.Ve
-.PP
-Example: Check if kqueue is available but not recommended and create
-a kqueue backend for use with sockets (which usually work with any
-kqueue implementation). Store the kqueue/socket\-only event loop in
-\&\f(CW\*(C`loop_socket\*(C'\fR. (One might optionally use \f(CW\*(C`EVFLAG_NOENV\*(C'\fR, too).
-.PP
-.Vb 3
-\&   struct ev_loop *loop = ev_default_init (0);
-\&   struct ev_loop *loop_socket = 0;
-\&   ev_embed embed;
-\&   
-\&   if (ev_supported_backends () & ~ev_recommended_backends () & EVBACKEND_KQUEUE)
-\&     if ((loop_socket = ev_loop_new (EVBACKEND_KQUEUE))
-\&       {
-\&         ev_embed_init (&embed, 0, loop_socket);
-\&         ev_embed_start (loop, &embed);
-\&       }
-\&
-\&   if (!loop_socket)
-\&     loop_socket = loop;
-\&
-\&   // now use loop_socket for all sockets, and loop for everything else
-.Ve
-.ie n .SS """ev_fork"" \- the audacity to resume the event loop after a fork"
-.el .SS "\f(CWev_fork\fP \- the audacity to resume the event loop after a fork"
-.IX Subsection "ev_fork - the audacity to resume the event loop after a fork"
-Fork watchers are called when a \f(CW\*(C`fork ()\*(C'\fR was detected (usually because
-whoever is a good citizen cared to tell libev about it by calling
-\&\f(CW\*(C`ev_default_fork\*(C'\fR or \f(CW\*(C`ev_loop_fork\*(C'\fR). The invocation is done before the
-event loop blocks next and before \f(CW\*(C`ev_check\*(C'\fR watchers are being called,
-and only in the child after the fork. If whoever good citizen calling
-\&\f(CW\*(C`ev_default_fork\*(C'\fR cheats and calls it in the wrong process, the fork
-handlers will be invoked, too, of course.
-.PP
-\fIThe special problem of life after fork \- how is it possible?\fR
-.IX Subsection "The special problem of life after fork - how is it possible?"
-.PP
-Most uses of \f(CW\*(C`fork()\*(C'\fR consist of forking, then some simple calls to set
-up/change the process environment, followed by a call to \f(CW\*(C`exec()\*(C'\fR. This
-sequence should be handled by libev without any problems.
-.PP
-This changes when the application actually wants to do event handling
-in the child, or both parent in child, in effect \*(L"continuing\*(R" after the
-fork.
-.PP
-The default mode of operation (for libev, with application help to detect
-forks) is to duplicate all the state in the child, as would be expected
-when \fIeither\fR the parent \fIor\fR the child process continues.
-.PP
-When both processes want to continue using libev, then this is usually the
-wrong result. In that case, usually one process (typically the parent) is
-supposed to continue with all watchers in place as before, while the other
-process typically wants to start fresh, i.e. without any active watchers.
-.PP
-The cleanest and most efficient way to achieve that with libev is to
-simply create a new event loop, which of course will be \*(L"empty\*(R", and
-use that for new watchers. This has the advantage of not touching more
-memory than necessary, and thus avoiding the copy-on-write, and the
-disadvantage of having to use multiple event loops (which do not support
-signal watchers).
-.PP
-When this is not possible, or you want to use the default loop for
-other reasons, then in the process that wants to start \*(L"fresh\*(R", call
-\&\f(CW\*(C`ev_loop_destroy (EV_DEFAULT)\*(C'\fR followed by \f(CW\*(C`ev_default_loop (...)\*(C'\fR.
-Destroying the default loop will \*(L"orphan\*(R" (not stop) all registered
-watchers, so you have to be careful not to execute code that modifies
-those watchers. Note also that in that case, you have to re-register any
-signal watchers.
-.PP
-\fIWatcher-Specific Functions and Data Members\fR
-.IX Subsection "Watcher-Specific Functions and Data Members"
-.IP "ev_fork_init (ev_fork *, callback)" 4
-.IX Item "ev_fork_init (ev_fork *, callback)"
-Initialises and configures the fork watcher \- it has no parameters of any
-kind. There is a \f(CW\*(C`ev_fork_set\*(C'\fR macro, but using it is utterly pointless,
-really.
-.ie n .SS """ev_cleanup"" \- even the best things end"
-.el .SS "\f(CWev_cleanup\fP \- even the best things end"
-.IX Subsection "ev_cleanup - even the best things end"
-Cleanup watchers are called just before the event loop is being destroyed
-by a call to \f(CW\*(C`ev_loop_destroy\*(C'\fR.
-.PP
-While there is no guarantee that the event loop gets destroyed, cleanup
-watchers provide a convenient method to install cleanup hooks for your
-program, worker threads and so on \- you just to make sure to destroy the
-loop when you want them to be invoked.
-.PP
-Cleanup watchers are invoked in the same way as any other watcher. Unlike
-all other watchers, they do not keep a reference to the event loop (which
-makes a lot of sense if you think about it). Like all other watchers, you
-can call libev functions in the callback, except \f(CW\*(C`ev_cleanup_start\*(C'\fR.
-.PP
-\fIWatcher-Specific Functions and Data Members\fR
-.IX Subsection "Watcher-Specific Functions and Data Members"
-.IP "ev_cleanup_init (ev_cleanup *, callback)" 4
-.IX Item "ev_cleanup_init (ev_cleanup *, callback)"
-Initialises and configures the cleanup watcher \- it has no parameters of
-any kind. There is a \f(CW\*(C`ev_cleanup_set\*(C'\fR macro, but using it is utterly
-pointless, I assure you.
-.PP
-Example: Register an atexit handler to destroy the default loop, so any
-cleanup functions are called.
-.PP
-.Vb 5
-\&   static void
-\&   program_exits (void)
-\&   {
-\&     ev_loop_destroy (EV_DEFAULT_UC);
-\&   }
-\&
-\&   ...
-\&   atexit (program_exits);
-.Ve
-.ie n .SS """ev_async"" \- how to wake up an event loop"
-.el .SS "\f(CWev_async\fP \- how to wake up an event loop"
-.IX Subsection "ev_async - how to wake up an event loop"
-In general, you cannot use an \f(CW\*(C`ev_loop\*(C'\fR from multiple threads or other
-asynchronous sources such as signal handlers (as opposed to multiple event
-loops \- those are of course safe to use in different threads).
-.PP
-Sometimes, however, you need to wake up an event loop you do not control,
-for example because it belongs to another thread. This is what \f(CW\*(C`ev_async\*(C'\fR
-watchers do: as long as the \f(CW\*(C`ev_async\*(C'\fR watcher is active, you can signal
-it by calling \f(CW\*(C`ev_async_send\*(C'\fR, which is thread\- and signal safe.
-.PP
-This functionality is very similar to \f(CW\*(C`ev_signal\*(C'\fR watchers, as signals,
-too, are asynchronous in nature, and signals, too, will be compressed
-(i.e. the number of callback invocations may be less than the number of
-\&\f(CW\*(C`ev_async_sent\*(C'\fR calls). In fact, you could use signal watchers as a kind
-of \*(L"global async watchers\*(R" by using a watcher on an otherwise unused
-signal, and \f(CW\*(C`ev_feed_signal\*(C'\fR to signal this watcher from another thread,
-even without knowing which loop owns the signal.
-.PP
-Unlike \f(CW\*(C`ev_signal\*(C'\fR watchers, \f(CW\*(C`ev_async\*(C'\fR works with any event loop, not
-just the default loop.
-.PP
-\fIQueueing\fR
-.IX Subsection "Queueing"
-.PP
-\&\f(CW\*(C`ev_async\*(C'\fR does not support queueing of data in any way. The reason
-is that the author does not know of a simple (or any) algorithm for a
-multiple-writer-single-reader queue that works in all cases and doesn't
-need elaborate support such as pthreads or unportable memory access
-semantics.
-.PP
-That means that if you want to queue data, you have to provide your own
-queue. But at least I can tell you how to implement locking around your
-queue:
-.IP "queueing from a signal handler context" 4
-.IX Item "queueing from a signal handler context"
-To implement race-free queueing, you simply add to the queue in the signal
-handler but you block the signal handler in the watcher callback. Here is
-an example that does that for some fictitious \s-1SIGUSR1\s0 handler:
-.Sp
-.Vb 1
-\&   static ev_async mysig;
-\&
-\&   static void
-\&   sigusr1_handler (void)
-\&   {
-\&     sometype data;
-\&
-\&     // no locking etc.
-\&     queue_put (data);
-\&     ev_async_send (EV_DEFAULT_ &mysig);
-\&   }
-\&
-\&   static void
-\&   mysig_cb (EV_P_ ev_async *w, int revents)
-\&   {
-\&     sometype data;
-\&     sigset_t block, prev;
-\&
-\&     sigemptyset (&block);
-\&     sigaddset (&block, SIGUSR1);
-\&     sigprocmask (SIG_BLOCK, &block, &prev);
-\&
-\&     while (queue_get (&data))
-\&       process (data);
-\&
-\&     if (sigismember (&prev, SIGUSR1)
-\&       sigprocmask (SIG_UNBLOCK, &block, 0);
-\&   }
-.Ve
-.Sp
-(Note: pthreads in theory requires you to use \f(CW\*(C`pthread_setmask\*(C'\fR
-instead of \f(CW\*(C`sigprocmask\*(C'\fR when you use threads, but libev doesn't do it
-either...).
-.IP "queueing from a thread context" 4
-.IX Item "queueing from a thread context"
-The strategy for threads is different, as you cannot (easily) block
-threads but you can easily preempt them, so to queue safely you need to
-employ a traditional mutex lock, such as in this pthread example:
-.Sp
-.Vb 2
-\&   static ev_async mysig;
-\&   static pthread_mutex_t mymutex = PTHREAD_MUTEX_INITIALIZER;
-\&
-\&   static void
-\&   otherthread (void)
-\&   {
-\&     // only need to lock the actual queueing operation
-\&     pthread_mutex_lock (&mymutex);
-\&     queue_put (data);
-\&     pthread_mutex_unlock (&mymutex);
-\&
-\&     ev_async_send (EV_DEFAULT_ &mysig);
-\&   }
-\&
-\&   static void
-\&   mysig_cb (EV_P_ ev_async *w, int revents)
-\&   {
-\&     pthread_mutex_lock (&mymutex);
-\&
-\&     while (queue_get (&data))
-\&       process (data);
-\&
-\&     pthread_mutex_unlock (&mymutex);
-\&   }
-.Ve
-.PP
-\fIWatcher-Specific Functions and Data Members\fR
-.IX Subsection "Watcher-Specific Functions and Data Members"
-.IP "ev_async_init (ev_async *, callback)" 4
-.IX Item "ev_async_init (ev_async *, callback)"
-Initialises and configures the async watcher \- it has no parameters of any
-kind. There is a \f(CW\*(C`ev_async_set\*(C'\fR macro, but using it is utterly pointless,
-trust me.
-.IP "ev_async_send (loop, ev_async *)" 4
-.IX Item "ev_async_send (loop, ev_async *)"
-Sends/signals/activates the given \f(CW\*(C`ev_async\*(C'\fR watcher, that is, feeds
-an \f(CW\*(C`EV_ASYNC\*(C'\fR event on the watcher into the event loop, and instantly
-returns.
-.Sp
-Unlike \f(CW\*(C`ev_feed_event\*(C'\fR, this call is safe to do from other threads,
-signal or similar contexts (see the discussion of \f(CW\*(C`EV_ATOMIC_T\*(C'\fR in the
-embedding section below on what exactly this means).
-.Sp
-Note that, as with other watchers in libev, multiple events might get
-compressed into a single callback invocation (another way to look at this
-is that \f(CW\*(C`ev_async\*(C'\fR watchers are level-triggered, set on \f(CW\*(C`ev_async_send\*(C'\fR,
-reset when the event loop detects that).
-.Sp
-This call incurs the overhead of a system call only once per event loop
-iteration, so while the overhead might be noticeable, it doesn't apply to
-repeated calls to \f(CW\*(C`ev_async_send\*(C'\fR for the same event loop.
-.IP "bool = ev_async_pending (ev_async *)" 4
-.IX Item "bool = ev_async_pending (ev_async *)"
-Returns a non-zero value when \f(CW\*(C`ev_async_send\*(C'\fR has been called on the
-watcher but the event has not yet been processed (or even noted) by the
-event loop.
-.Sp
-\&\f(CW\*(C`ev_async_send\*(C'\fR sets a flag in the watcher and wakes up the loop. When
-the loop iterates next and checks for the watcher to have become active,
-it will reset the flag again. \f(CW\*(C`ev_async_pending\*(C'\fR can be used to very
-quickly check whether invoking the loop might be a good idea.
-.Sp
-Not that this does \fInot\fR check whether the watcher itself is pending,
-only whether it has been requested to make this watcher pending: there
-is a time window between the event loop checking and resetting the async
-notification, and the callback being invoked.
-.SH "OTHER FUNCTIONS"
-.IX Header "OTHER FUNCTIONS"
-There are some other functions of possible interest. Described. Here. Now.
-.IP "ev_once (loop, int fd, int events, ev_tstamp timeout, callback)" 4
-.IX Item "ev_once (loop, int fd, int events, ev_tstamp timeout, callback)"
-This function combines a simple timer and an I/O watcher, calls your
-callback on whichever event happens first and automatically stops both
-watchers. This is useful if you want to wait for a single event on an fd
-or timeout without having to allocate/configure/start/stop/free one or
-more watchers yourself.
-.Sp
-If \f(CW\*(C`fd\*(C'\fR is less than 0, then no I/O watcher will be started and the
-\&\f(CW\*(C`events\*(C'\fR argument is being ignored. Otherwise, an \f(CW\*(C`ev_io\*(C'\fR watcher for
-the given \f(CW\*(C`fd\*(C'\fR and \f(CW\*(C`events\*(C'\fR set will be created and started.
-.Sp
-If \f(CW\*(C`timeout\*(C'\fR is less than 0, then no timeout watcher will be
-started. Otherwise an \f(CW\*(C`ev_timer\*(C'\fR watcher with after = \f(CW\*(C`timeout\*(C'\fR (and
-repeat = 0) will be started. \f(CW0\fR is a valid timeout.
-.Sp
-The callback has the type \f(CW\*(C`void (*cb)(int revents, void *arg)\*(C'\fR and is
-passed an \f(CW\*(C`revents\*(C'\fR set like normal event callbacks (a combination of
-\&\f(CW\*(C`EV_ERROR\*(C'\fR, \f(CW\*(C`EV_READ\*(C'\fR, \f(CW\*(C`EV_WRITE\*(C'\fR or \f(CW\*(C`EV_TIMER\*(C'\fR) and the \f(CW\*(C`arg\*(C'\fR
-value passed to \f(CW\*(C`ev_once\*(C'\fR. Note that it is possible to receive \fIboth\fR
-a timeout and an io event at the same time \- you probably should give io
-events precedence.
-.Sp
-Example: wait up to ten seconds for data to appear on \s-1STDIN_FILENO\s0.
-.Sp
-.Vb 7
-\&   static void stdin_ready (int revents, void *arg)
-\&   {
-\&     if (revents & EV_READ)
-\&       /* stdin might have data for us, joy! */;
-\&     else if (revents & EV_TIMER)
-\&       /* doh, nothing entered */;
-\&   }
-\&
-\&   ev_once (STDIN_FILENO, EV_READ, 10., stdin_ready, 0);
-.Ve
-.IP "ev_feed_fd_event (loop, int fd, int revents)" 4
-.IX Item "ev_feed_fd_event (loop, int fd, int revents)"
-Feed an event on the given fd, as if a file descriptor backend detected
-the given events it.
-.IP "ev_feed_signal_event (loop, int signum)" 4
-.IX Item "ev_feed_signal_event (loop, int signum)"
-Feed an event as if the given signal occurred. See also \f(CW\*(C`ev_feed_signal\*(C'\fR,
-which is async-safe.
-.SH "COMMON OR USEFUL IDIOMS (OR BOTH)"
-.IX Header "COMMON OR USEFUL IDIOMS (OR BOTH)"
-This section explains some common idioms that are not immediately
-obvious. Note that examples are sprinkled over the whole manual, and this
-section only contains stuff that wouldn't fit anywhere else.
-.SS "\s-1ASSOCIATING\s0 \s-1CUSTOM\s0 \s-1DATA\s0 \s-1WITH\s0 A \s-1WATCHER\s0"
-.IX Subsection "ASSOCIATING CUSTOM DATA WITH A WATCHER"
-Each watcher has, by default, a \f(CW\*(C`void *data\*(C'\fR member that you can read
-or modify at any time: libev will completely ignore it. This can be used
-to associate arbitrary data with your watcher. If you need more data and
-don't want to allocate memory separately and store a pointer to it in that
-data member, you can also \*(L"subclass\*(R" the watcher type and provide your own
-data:
-.PP
-.Vb 7
-\&   struct my_io
-\&   {
-\&     ev_io io;
-\&     int otherfd;
-\&     void *somedata;
-\&     struct whatever *mostinteresting;
-\&   };
-\&
-\&   ...
-\&   struct my_io w;
-\&   ev_io_init (&w.io, my_cb, fd, EV_READ);
-.Ve
-.PP
-And since your callback will be called with a pointer to the watcher, you
-can cast it back to your own type:
-.PP
-.Vb 5
-\&   static void my_cb (struct ev_loop *loop, ev_io *w_, int revents)
-\&   {
-\&     struct my_io *w = (struct my_io *)w_;
-\&     ...
-\&   }
-.Ve
-.PP
-More interesting and less C\-conformant ways of casting your callback
-function type instead have been omitted.
-.SS "\s-1BUILDING\s0 \s-1YOUR\s0 \s-1OWN\s0 \s-1COMPOSITE\s0 \s-1WATCHERS\s0"
-.IX Subsection "BUILDING YOUR OWN COMPOSITE WATCHERS"
-Another common scenario is to use some data structure with multiple
-embedded watchers, in effect creating your own watcher that combines
-multiple libev event sources into one \*(L"super-watcher\*(R":
-.PP
-.Vb 6
-\&   struct my_biggy
-\&   {
-\&     int some_data;
-\&     ev_timer t1;
-\&     ev_timer t2;
-\&   }
-.Ve
-.PP
-In this case getting the pointer to \f(CW\*(C`my_biggy\*(C'\fR is a bit more
-complicated: Either you store the address of your \f(CW\*(C`my_biggy\*(C'\fR struct in
-the \f(CW\*(C`data\*(C'\fR member of the watcher (for woozies or \*(C+ coders), or you need
-to use some pointer arithmetic using \f(CW\*(C`offsetof\*(C'\fR inside your watchers (for
-real programmers):
-.PP
-.Vb 1
-\&   #include <stddef.h>
-\&
-\&   static void
-\&   t1_cb (EV_P_ ev_timer *w, int revents)
-\&   {
-\&     struct my_biggy big = (struct my_biggy *)
-\&       (((char *)w) \- offsetof (struct my_biggy, t1));
-\&   }
-\&
-\&   static void
-\&   t2_cb (EV_P_ ev_timer *w, int revents)
-\&   {
-\&     struct my_biggy big = (struct my_biggy *)
-\&       (((char *)w) \- offsetof (struct my_biggy, t2));
-\&   }
-.Ve
-.SS "\s-1MODEL/NESTED\s0 \s-1EVENT\s0 \s-1LOOP\s0 \s-1INVOCATIONS\s0 \s-1AND\s0 \s-1EXIT\s0 \s-1CONDITIONS\s0"
-.IX Subsection "MODEL/NESTED EVENT LOOP INVOCATIONS AND EXIT CONDITIONS"
-Often (especially in \s-1GUI\s0 toolkits) there are places where you have
-\&\fImodal\fR interaction, which is most easily implemented by recursively
-invoking \f(CW\*(C`ev_run\*(C'\fR.
-.PP
-This brings the problem of exiting \- a callback might want to finish the
-main \f(CW\*(C`ev_run\*(C'\fR call, but not the nested one (e.g. user clicked \*(L"Quit\*(R", but
-a modal \*(L"Are you sure?\*(R" dialog is still waiting), or just the nested one
-and not the main one (e.g. user clocked \*(L"Ok\*(R" in a modal dialog), or some
-other combination: In these cases, \f(CW\*(C`ev_break\*(C'\fR will not work alone.
-.PP
-The solution is to maintain \*(L"break this loop\*(R" variable for each \f(CW\*(C`ev_run\*(C'\fR
-invocation, and use a loop around \f(CW\*(C`ev_run\*(C'\fR until the condition is
-triggered, using \f(CW\*(C`EVRUN_ONCE\*(C'\fR:
-.PP
-.Vb 2
-\&   // main loop
-\&   int exit_main_loop = 0;
-\&
-\&   while (!exit_main_loop)
-\&     ev_run (EV_DEFAULT_ EVRUN_ONCE);
-\&
-\&   // in a model watcher
-\&   int exit_nested_loop = 0;
-\&
-\&   while (!exit_nested_loop)
-\&     ev_run (EV_A_ EVRUN_ONCE);
-.Ve
-.PP
-To exit from any of these loops, just set the corresponding exit variable:
-.PP
-.Vb 2
-\&   // exit modal loop
-\&   exit_nested_loop = 1;
-\&
-\&   // exit main program, after modal loop is finished
-\&   exit_main_loop = 1;
-\&
-\&   // exit both
-\&   exit_main_loop = exit_nested_loop = 1;
-.Ve
-.SS "\s-1THREAD\s0 \s-1LOCKING\s0 \s-1EXAMPLE\s0"
-.IX Subsection "THREAD LOCKING EXAMPLE"
-Here is a fictitious example of how to run an event loop in a different
-thread from where callbacks are being invoked and watchers are
-created/added/removed.
-.PP
-For a real-world example, see the \f(CW\*(C`EV::Loop::Async\*(C'\fR perl module,
-which uses exactly this technique (which is suited for many high-level
-languages).
-.PP
-The example uses a pthread mutex to protect the loop data, a condition
-variable to wait for callback invocations, an async watcher to notify the
-event loop thread and an unspecified mechanism to wake up the main thread.
-.PP
-First, you need to associate some data with the event loop:
-.PP
-.Vb 6
-\&   typedef struct {
-\&     mutex_t lock; /* global loop lock */
-\&     ev_async async_w;
-\&     thread_t tid;
-\&     cond_t invoke_cv;
-\&   } userdata;
-\&
-\&   void prepare_loop (EV_P)
-\&   {
-\&      // for simplicity, we use a static userdata struct.
-\&      static userdata u;
-\&
-\&      ev_async_init (&u\->async_w, async_cb);
-\&      ev_async_start (EV_A_ &u\->async_w);
-\&
-\&      pthread_mutex_init (&u\->lock, 0);
-\&      pthread_cond_init (&u\->invoke_cv, 0);
-\&
-\&      // now associate this with the loop
-\&      ev_set_userdata (EV_A_ u);
-\&      ev_set_invoke_pending_cb (EV_A_ l_invoke);
-\&      ev_set_loop_release_cb (EV_A_ l_release, l_acquire);
-\&
-\&      // then create the thread running ev_run
-\&      pthread_create (&u\->tid, 0, l_run, EV_A);
-\&   }
-.Ve
-.PP
-The callback for the \f(CW\*(C`ev_async\*(C'\fR watcher does nothing: the watcher is used
-solely to wake up the event loop so it takes notice of any new watchers
-that might have been added:
-.PP
-.Vb 5
-\&   static void
-\&   async_cb (EV_P_ ev_async *w, int revents)
-\&   {
-\&      // just used for the side effects
-\&   }
-.Ve
-.PP
-The \f(CW\*(C`l_release\*(C'\fR and \f(CW\*(C`l_acquire\*(C'\fR callbacks simply unlock/lock the mutex
-protecting the loop data, respectively.
-.PP
-.Vb 6
-\&   static void
-\&   l_release (EV_P)
-\&   {
-\&     userdata *u = ev_userdata (EV_A);
-\&     pthread_mutex_unlock (&u\->lock);
-\&   }
-\&
-\&   static void
-\&   l_acquire (EV_P)
-\&   {
-\&     userdata *u = ev_userdata (EV_A);
-\&     pthread_mutex_lock (&u\->lock);
-\&   }
-.Ve
-.PP
-The event loop thread first acquires the mutex, and then jumps straight
-into \f(CW\*(C`ev_run\*(C'\fR:
-.PP
-.Vb 4
-\&   void *
-\&   l_run (void *thr_arg)
-\&   {
-\&     struct ev_loop *loop = (struct ev_loop *)thr_arg;
-\&
-\&     l_acquire (EV_A);
-\&     pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, 0);
-\&     ev_run (EV_A_ 0);
-\&     l_release (EV_A);
-\&
-\&     return 0;
-\&   }
-.Ve
-.PP
-Instead of invoking all pending watchers, the \f(CW\*(C`l_invoke\*(C'\fR callback will
-signal the main thread via some unspecified mechanism (signals? pipe
-writes? \f(CW\*(C`Async::Interrupt\*(C'\fR?) and then waits until all pending watchers
-have been called (in a while loop because a) spurious wakeups are possible
-and b) skipping inter-thread-communication when there are no pending
-watchers is very beneficial):
-.PP
-.Vb 4
-\&   static void
-\&   l_invoke (EV_P)
-\&   {
-\&     userdata *u = ev_userdata (EV_A);
-\&
-\&     while (ev_pending_count (EV_A))
-\&       {
-\&         wake_up_other_thread_in_some_magic_or_not_so_magic_way ();
-\&         pthread_cond_wait (&u\->invoke_cv, &u\->lock);
-\&       }
-\&   }
-.Ve
-.PP
-Now, whenever the main thread gets told to invoke pending watchers, it
-will grab the lock, call \f(CW\*(C`ev_invoke_pending\*(C'\fR and then signal the loop
-thread to continue:
-.PP
-.Vb 4
-\&   static void
-\&   real_invoke_pending (EV_P)
-\&   {
-\&     userdata *u = ev_userdata (EV_A);
-\&
-\&     pthread_mutex_lock (&u\->lock);
-\&     ev_invoke_pending (EV_A);
-\&     pthread_cond_signal (&u\->invoke_cv);
-\&     pthread_mutex_unlock (&u\->lock);
-\&   }
-.Ve
-.PP
-Whenever you want to start/stop a watcher or do other modifications to an
-event loop, you will now have to lock:
-.PP
-.Vb 2
-\&   ev_timer timeout_watcher;
-\&   userdata *u = ev_userdata (EV_A);
-\&
-\&   ev_timer_init (&timeout_watcher, timeout_cb, 5.5, 0.);
-\&
-\&   pthread_mutex_lock (&u\->lock);
-\&   ev_timer_start (EV_A_ &timeout_watcher);
-\&   ev_async_send (EV_A_ &u\->async_w);
-\&   pthread_mutex_unlock (&u\->lock);
-.Ve
-.PP
-Note that sending the \f(CW\*(C`ev_async\*(C'\fR watcher is required because otherwise
-an event loop currently blocking in the kernel will have no knowledge
-about the newly added timer. By waking up the loop it will pick up any new
-watchers in the next event loop iteration.
-.SS "\s-1THREADS\s0, \s-1COROUTINES\s0, \s-1CONTINUATIONS\s0, \s-1QUEUES\s0... \s-1INSTEAD\s0 \s-1OF\s0 \s-1CALLBACKS\s0"
-.IX Subsection "THREADS, COROUTINES, CONTINUATIONS, QUEUES... INSTEAD OF CALLBACKS"
-While the overhead of a callback that e.g. schedules a thread is small, it
-is still an overhead. If you embed libev, and your main usage is with some
-kind of threads or coroutines, you might want to customise libev so that
-doesn't need callbacks anymore.
-.PP
-Imagine you have coroutines that you can switch to using a function
-\&\f(CW\*(C`switch_to (coro)\*(C'\fR, that libev runs in a coroutine called \f(CW\*(C`libev_coro\*(C'\fR
-and that due to some magic, the currently active coroutine is stored in a
-global called \f(CW\*(C`current_coro\*(C'\fR. Then you can build your own \*(L"wait for libev
-event\*(R" primitive by changing \f(CW\*(C`EV_CB_DECLARE\*(C'\fR and \f(CW\*(C`EV_CB_INVOKE\*(C'\fR (note
-the differing \f(CW\*(C`;\*(C'\fR conventions):
-.PP
-.Vb 2
-\&   #define EV_CB_DECLARE(type)   struct my_coro *cb;
-\&   #define EV_CB_INVOKE(watcher) switch_to ((watcher)\->cb)
-.Ve
-.PP
-That means instead of having a C callback function, you store the
-coroutine to switch to in each watcher, and instead of having libev call
-your callback, you instead have it switch to that coroutine.
-.PP
-A coroutine might now wait for an event with a function called
-\&\f(CW\*(C`wait_for_event\*(C'\fR. (the watcher needs to be started, as always, but it doesn't
-matter when, or whether the watcher is active or not when this function is
-called):
-.PP
-.Vb 6
-\&   void
-\&   wait_for_event (ev_watcher *w)
-\&   {
-\&     ev_cb_set (w) = current_coro;
-\&     switch_to (libev_coro);
-\&   }
-.Ve
-.PP
-That basically suspends the coroutine inside \f(CW\*(C`wait_for_event\*(C'\fR and
-continues the libev coroutine, which, when appropriate, switches back to
-this or any other coroutine. I am sure if you sue this your own :)
-.PP
-You can do similar tricks if you have, say, threads with an event queue \-
-instead of storing a coroutine, you store the queue object and instead of
-switching to a coroutine, you push the watcher onto the queue and notify
-any waiters.
-.PP
-To embed libev, see \s-1EMBEDDING\s0, but in short, it's easiest to create two
-files, \fImy_ev.h\fR and \fImy_ev.c\fR that include the respective libev files:
-.PP
-.Vb 4
-\&   // my_ev.h
-\&   #define EV_CB_DECLARE(type)   struct my_coro *cb;
-\&   #define EV_CB_INVOKE(watcher) switch_to ((watcher)\->cb);
-\&   #include "../libev/ev.h"
-\&
-\&   // my_ev.c
-\&   #define EV_H "my_ev.h"
-\&   #include "../libev/ev.c"
-.Ve
-.PP
-And then use \fImy_ev.h\fR when you would normally use \fIev.h\fR, and compile
-\&\fImy_ev.c\fR into your project. When properly specifying include paths, you
-can even use \fIev.h\fR as header file name directly.
-.SH "LIBEVENT EMULATION"
-.IX Header "LIBEVENT EMULATION"
-Libev offers a compatibility emulation layer for libevent. It cannot
-emulate the internals of libevent, so here are some usage hints:
-.IP "\(bu" 4
-Only the libevent\-1.4.1\-beta \s-1API\s0 is being emulated.
-.Sp
-This was the newest libevent version available when libev was implemented,
-and is still mostly unchanged in 2010.
-.IP "\(bu" 4
-Use it by including <event.h>, as usual.
-.IP "\(bu" 4
-The following members are fully supported: ev_base, ev_callback,
-ev_arg, ev_fd, ev_res, ev_events.
-.IP "\(bu" 4
-Avoid using ev_flags and the EVLIST_*\-macros, while it is
-maintained by libev, it does not work exactly the same way as in libevent (consider
-it a private \s-1API\s0).
-.IP "\(bu" 4
-Priorities are not currently supported. Initialising priorities
-will fail and all watchers will have the same priority, even though there
-is an ev_pri field.
-.IP "\(bu" 4
-In libevent, the last base created gets the signals, in libev, the
-base that registered the signal gets the signals.
-.IP "\(bu" 4
-Other members are not supported.
-.IP "\(bu" 4
-The libev emulation is \fInot\fR \s-1ABI\s0 compatible to libevent, you need
-to use the libev header file and library.
-.SH "\*(C+ SUPPORT"
-.IX Header " SUPPORT"
-Libev comes with some simplistic wrapper classes for \*(C+ that mainly allow
-you to use some convenience methods to start/stop watchers and also change
-the callback model to a model using method callbacks on objects.
-.PP
-To use it,
-.PP
-.Vb 1
-\&   #include <ev++.h>
-.Ve
-.PP
-This automatically includes \fIev.h\fR and puts all of its definitions (many
-of them macros) into the global namespace. All \*(C+ specific things are
-put into the \f(CW\*(C`ev\*(C'\fR namespace. It should support all the same embedding
-options as \fIev.h\fR, most notably \f(CW\*(C`EV_MULTIPLICITY\*(C'\fR.
-.PP
-Care has been taken to keep the overhead low. The only data member the \*(C+
-classes add (compared to plain C\-style watchers) is the event loop pointer
-that the watcher is associated with (or no additional members at all if
-you disable \f(CW\*(C`EV_MULTIPLICITY\*(C'\fR when embedding libev).
-.PP
-Currently, functions, static and non-static member functions and classes
-with \f(CW\*(C`operator ()\*(C'\fR can be used as callbacks. Other types should be easy
-to add as long as they only need one additional pointer for context. If
-you need support for other types of functors please contact the author
-(preferably after implementing it).
-.PP
-Here is a list of things available in the \f(CW\*(C`ev\*(C'\fR namespace:
-.ie n .IP """ev::READ"", ""ev::WRITE"" etc." 4
-.el .IP "\f(CWev::READ\fR, \f(CWev::WRITE\fR etc." 4
-.IX Item "ev::READ, ev::WRITE etc."
-These are just enum values with the same values as the \f(CW\*(C`EV_READ\*(C'\fR etc.
-macros from \fIev.h\fR.
-.ie n .IP """ev::tstamp"", ""ev::now""" 4
-.el .IP "\f(CWev::tstamp\fR, \f(CWev::now\fR" 4
-.IX Item "ev::tstamp, ev::now"
-Aliases to the same types/functions as with the \f(CW\*(C`ev_\*(C'\fR prefix.
-.ie n .IP """ev::io"", ""ev::timer"", ""ev::periodic"", ""ev::idle"", ""ev::sig"" etc." 4
-.el .IP "\f(CWev::io\fR, \f(CWev::timer\fR, \f(CWev::periodic\fR, \f(CWev::idle\fR, \f(CWev::sig\fR etc." 4
-.IX Item "ev::io, ev::timer, ev::periodic, ev::idle, ev::sig etc."
-For each \f(CW\*(C`ev_TYPE\*(C'\fR watcher in \fIev.h\fR there is a corresponding class of
-the same name in the \f(CW\*(C`ev\*(C'\fR namespace, with the exception of \f(CW\*(C`ev_signal\*(C'\fR
-which is called \f(CW\*(C`ev::sig\*(C'\fR to avoid clashes with the \f(CW\*(C`signal\*(C'\fR macro
-defines by many implementations.
-.Sp
-All of those classes have these methods:
-.RS 4
-.IP "ev::TYPE::TYPE ()" 4
-.IX Item "ev::TYPE::TYPE ()"
-.PD 0
-.IP "ev::TYPE::TYPE (loop)" 4
-.IX Item "ev::TYPE::TYPE (loop)"
-.IP "ev::TYPE::~TYPE" 4
-.IX Item "ev::TYPE::~TYPE"
-.PD
-The constructor (optionally) takes an event loop to associate the watcher
-with. If it is omitted, it will use \f(CW\*(C`EV_DEFAULT\*(C'\fR.
-.Sp
-The constructor calls \f(CW\*(C`ev_init\*(C'\fR for you, which means you have to call the
-\&\f(CW\*(C`set\*(C'\fR method before starting it.
-.Sp
-It will not set a callback, however: You have to call the templated \f(CW\*(C`set\*(C'\fR
-method to set a callback before you can start the watcher.
-.Sp
-(The reason why you have to use a method is a limitation in \*(C+ which does
-not allow explicit template arguments for constructors).
-.Sp
-The destructor automatically stops the watcher if it is active.
-.IP "w\->set<class, &class::method> (object *)" 4
-.IX Item "w->set<class, &class::method> (object *)"
-This method sets the callback method to call. The method has to have a
-signature of \f(CW\*(C`void (*)(ev_TYPE &, int)\*(C'\fR, it receives the watcher as
-first argument and the \f(CW\*(C`revents\*(C'\fR as second. The object must be given as
-parameter and is stored in the \f(CW\*(C`data\*(C'\fR member of the watcher.
-.Sp
-This method synthesizes efficient thunking code to call your method from
-the C callback that libev requires. If your compiler can inline your
-callback (i.e. it is visible to it at the place of the \f(CW\*(C`set\*(C'\fR call and
-your compiler is good :), then the method will be fully inlined into the
-thunking function, making it as fast as a direct C callback.
-.Sp
-Example: simple class declaration and watcher initialisation
-.Sp
-.Vb 4
-\&   struct myclass
-\&   {
-\&     void io_cb (ev::io &w, int revents) { }
-\&   }
-\&
-\&   myclass obj;
-\&   ev::io iow;
-\&   iow.set <myclass, &myclass::io_cb> (&obj);
-.Ve
-.IP "w\->set (object *)" 4
-.IX Item "w->set (object *)"
-This is a variation of a method callback \- leaving out the method to call
-will default the method to \f(CW\*(C`operator ()\*(C'\fR, which makes it possible to use
-functor objects without having to manually specify the \f(CW\*(C`operator ()\*(C'\fR all
-the time. Incidentally, you can then also leave out the template argument
-list.
-.Sp
-The \f(CW\*(C`operator ()\*(C'\fR method prototype must be \f(CW\*(C`void operator ()(watcher &w,
-int revents)\*(C'\fR.
-.Sp
-See the method\-\f(CW\*(C`set\*(C'\fR above for more details.
-.Sp
-Example: use a functor object as callback.
-.Sp
-.Vb 7
-\&   struct myfunctor
-\&   {
-\&     void operator() (ev::io &w, int revents)
-\&     {
-\&       ...
-\&     }
-\&   }
-\&    
-\&   myfunctor f;
-\&
-\&   ev::io w;
-\&   w.set (&f);
-.Ve
-.IP "w\->set<function> (void *data = 0)" 4
-.IX Item "w->set<function> (void *data = 0)"
-Also sets a callback, but uses a static method or plain function as
-callback. The optional \f(CW\*(C`data\*(C'\fR argument will be stored in the watcher's
-\&\f(CW\*(C`data\*(C'\fR member and is free for you to use.
-.Sp
-The prototype of the \f(CW\*(C`function\*(C'\fR must be \f(CW\*(C`void (*)(ev::TYPE &w, int)\*(C'\fR.
-.Sp
-See the method\-\f(CW\*(C`set\*(C'\fR above for more details.
-.Sp
-Example: Use a plain function as callback.
-.Sp
-.Vb 2
-\&   static void io_cb (ev::io &w, int revents) { }
-\&   iow.set <io_cb> ();
-.Ve
-.IP "w\->set (loop)" 4
-.IX Item "w->set (loop)"
-Associates a different \f(CW\*(C`struct ev_loop\*(C'\fR with this watcher. You can only
-do this when the watcher is inactive (and not pending either).
-.IP "w\->set ([arguments])" 4
-.IX Item "w->set ([arguments])"
-Basically the same as \f(CW\*(C`ev_TYPE_set\*(C'\fR, with the same arguments. Either this
-method or a suitable start method must be called at least once. Unlike the
-C counterpart, an active watcher gets automatically stopped and restarted
-when reconfiguring it with this method.
-.IP "w\->start ()" 4
-.IX Item "w->start ()"
-Starts the watcher. Note that there is no \f(CW\*(C`loop\*(C'\fR argument, as the
-constructor already stores the event loop.
-.IP "w\->start ([arguments])" 4
-.IX Item "w->start ([arguments])"
-Instead of calling \f(CW\*(C`set\*(C'\fR and \f(CW\*(C`start\*(C'\fR methods separately, it is often
-convenient to wrap them in one call. Uses the same type of arguments as
-the configure \f(CW\*(C`set\*(C'\fR method of the watcher.
-.IP "w\->stop ()" 4
-.IX Item "w->stop ()"
-Stops the watcher if it is active. Again, no \f(CW\*(C`loop\*(C'\fR argument.
-.ie n .IP "w\->again () (""ev::timer"", ""ev::periodic"" only)" 4
-.el .IP "w\->again () (\f(CWev::timer\fR, \f(CWev::periodic\fR only)" 4
-.IX Item "w->again () (ev::timer, ev::periodic only)"
-For \f(CW\*(C`ev::timer\*(C'\fR and \f(CW\*(C`ev::periodic\*(C'\fR, this invokes the corresponding
-\&\f(CW\*(C`ev_TYPE_again\*(C'\fR function.
-.ie n .IP "w\->sweep () (""ev::embed"" only)" 4
-.el .IP "w\->sweep () (\f(CWev::embed\fR only)" 4
-.IX Item "w->sweep () (ev::embed only)"
-Invokes \f(CW\*(C`ev_embed_sweep\*(C'\fR.
-.ie n .IP "w\->update () (""ev::stat"" only)" 4
-.el .IP "w\->update () (\f(CWev::stat\fR only)" 4
-.IX Item "w->update () (ev::stat only)"
-Invokes \f(CW\*(C`ev_stat_stat\*(C'\fR.
-.RE
-.RS 4
-.RE
-.PP
-Example: Define a class with two I/O and idle watchers, start the I/O
-watchers in the constructor.
-.PP
-.Vb 5
-\&   class myclass
-\&   {
-\&     ev::io   io  ; void io_cb   (ev::io   &w, int revents);
-\&     ev::io2  io2 ; void io2_cb  (ev::io   &w, int revents);
-\&     ev::idle idle; void idle_cb (ev::idle &w, int revents);
-\&
-\&     myclass (int fd)
-\&     {
-\&       io  .set <myclass, &myclass::io_cb  > (this);
-\&       io2 .set <myclass, &myclass::io2_cb > (this);
-\&       idle.set <myclass, &myclass::idle_cb> (this);
-\&
-\&       io.set (fd, ev::WRITE); // configure the watcher
-\&       io.start ();            // start it whenever convenient
-\&
-\&       io2.start (fd, ev::READ); // set + start in one call
-\&     }
-\&   };
-.Ve
-.SH "OTHER LANGUAGE BINDINGS"
-.IX Header "OTHER LANGUAGE BINDINGS"
-Libev does not offer other language bindings itself, but bindings for a
-number of languages exist in the form of third-party packages. If you know
-any interesting language binding in addition to the ones listed here, drop
-me a note.
-.IP "Perl" 4
-.IX Item "Perl"
-The \s-1EV\s0 module implements the full libev \s-1API\s0 and is actually used to test
-libev. \s-1EV\s0 is developed together with libev. Apart from the \s-1EV\s0 core module,
-there are additional modules that implement libev-compatible interfaces
-to \f(CW\*(C`libadns\*(C'\fR (\f(CW\*(C`EV::ADNS\*(C'\fR, but \f(CW\*(C`AnyEvent::DNS\*(C'\fR is preferred nowadays),
-\&\f(CW\*(C`Net::SNMP\*(C'\fR (\f(CW\*(C`Net::SNMP::EV\*(C'\fR) and the \f(CW\*(C`libglib\*(C'\fR event core (\f(CW\*(C`Glib::EV\*(C'\fR
-and \f(CW\*(C`EV::Glib\*(C'\fR).
-.Sp
-It can be found and installed via \s-1CPAN\s0, its homepage is at
-<http://software.schmorp.de/pkg/EV>.
-.IP "Python" 4
-.IX Item "Python"
-Python bindings can be found at <http://code.google.com/p/pyev/>. It
-seems to be quite complete and well-documented.
-.IP "Ruby" 4
-.IX Item "Ruby"
-Tony Arcieri has written a ruby extension that offers access to a subset
-of the libev \s-1API\s0 and adds file handle abstractions, asynchronous \s-1DNS\s0 and
-more on top of it. It can be found via gem servers. Its homepage is at
-<http://rev.rubyforge.org/>.
-.Sp
-Roger Pack reports that using the link order \f(CW\*(C`\-lws2_32 \-lmsvcrt\-ruby\-190\*(C'\fR
-makes rev work even on mingw.
-.IP "Haskell" 4
-.IX Item "Haskell"
-A haskell binding to libev is available at
-<http://hackage.haskell.org/cgi\-bin/hackage\-scripts/package/hlibev>.
-.IP "D" 4
-.IX Item "D"
-Leandro Lucarella has written a D language binding (\fIev.d\fR) for libev, to
-be found at <http://proj.llucax.com.ar/wiki/evd>.
-.IP "Ocaml" 4
-.IX Item "Ocaml"
-Erkki Seppala has written Ocaml bindings for libev, to be found at
-<http://modeemi.cs.tut.fi/~flux/software/ocaml\-ev/>.
-.IP "Lua" 4
-.IX Item "Lua"
-Brian Maher has written a partial interface to libev for lua (at the
-time of this writing, only \f(CW\*(C`ev_io\*(C'\fR and \f(CW\*(C`ev_timer\*(C'\fR), to be found at
-<http://github.com/brimworks/lua\-ev>.
-.SH "MACRO MAGIC"
-.IX Header "MACRO MAGIC"
-Libev can be compiled with a variety of options, the most fundamental
-of which is \f(CW\*(C`EV_MULTIPLICITY\*(C'\fR. This option determines whether (most)
-functions and callbacks have an initial \f(CW\*(C`struct ev_loop *\*(C'\fR argument.
-.PP
-To make it easier to write programs that cope with either variant, the
-following macros are defined:
-.ie n .IP """EV_A"", ""EV_A_""" 4
-.el .IP "\f(CWEV_A\fR, \f(CWEV_A_\fR" 4
-.IX Item "EV_A, EV_A_"
-This provides the loop \fIargument\fR for functions, if one is required (\*(L"ev
-loop argument\*(R"). The \f(CW\*(C`EV_A\*(C'\fR form is used when this is the sole argument,
-\&\f(CW\*(C`EV_A_\*(C'\fR is used when other arguments are following. Example:
-.Sp
-.Vb 3
-\&   ev_unref (EV_A);
-\&   ev_timer_add (EV_A_ watcher);
-\&   ev_run (EV_A_ 0);
-.Ve
-.Sp
-It assumes the variable \f(CW\*(C`loop\*(C'\fR of type \f(CW\*(C`struct ev_loop *\*(C'\fR is in scope,
-which is often provided by the following macro.
-.ie n .IP """EV_P"", ""EV_P_""" 4
-.el .IP "\f(CWEV_P\fR, \f(CWEV_P_\fR" 4
-.IX Item "EV_P, EV_P_"
-This provides the loop \fIparameter\fR for functions, if one is required (\*(L"ev
-loop parameter\*(R"). The \f(CW\*(C`EV_P\*(C'\fR form is used when this is the sole parameter,
-\&\f(CW\*(C`EV_P_\*(C'\fR is used when other parameters are following. Example:
-.Sp
-.Vb 2
-\&   // this is how ev_unref is being declared
-\&   static void ev_unref (EV_P);
-\&
-\&   // this is how you can declare your typical callback
-\&   static void cb (EV_P_ ev_timer *w, int revents)
-.Ve
-.Sp
-It declares a parameter \f(CW\*(C`loop\*(C'\fR of type \f(CW\*(C`struct ev_loop *\*(C'\fR, quite
-suitable for use with \f(CW\*(C`EV_A\*(C'\fR.
-.ie n .IP """EV_DEFAULT"", ""EV_DEFAULT_""" 4
-.el .IP "\f(CWEV_DEFAULT\fR, \f(CWEV_DEFAULT_\fR" 4
-.IX Item "EV_DEFAULT, EV_DEFAULT_"
-Similar to the other two macros, this gives you the value of the default
-loop, if multiple loops are supported (\*(L"ev loop default\*(R").
-.ie n .IP """EV_DEFAULT_UC"", ""EV_DEFAULT_UC_""" 4
-.el .IP "\f(CWEV_DEFAULT_UC\fR, \f(CWEV_DEFAULT_UC_\fR" 4
-.IX Item "EV_DEFAULT_UC, EV_DEFAULT_UC_"
-Usage identical to \f(CW\*(C`EV_DEFAULT\*(C'\fR and \f(CW\*(C`EV_DEFAULT_\*(C'\fR, but requires that the
-default loop has been initialised (\f(CW\*(C`UC\*(C'\fR == unchecked). Their behaviour
-is undefined when the default loop has not been initialised by a previous
-execution of \f(CW\*(C`EV_DEFAULT\*(C'\fR, \f(CW\*(C`EV_DEFAULT_\*(C'\fR or \f(CW\*(C`ev_default_init (...)\*(C'\fR.
-.Sp
-It is often prudent to use \f(CW\*(C`EV_DEFAULT\*(C'\fR when initialising the first
-watcher in a function but use \f(CW\*(C`EV_DEFAULT_UC\*(C'\fR afterwards.
-.PP
-Example: Declare and initialise a check watcher, utilising the above
-macros so it will work regardless of whether multiple loops are supported
-or not.
-.PP
-.Vb 5
-\&   static void
-\&   check_cb (EV_P_ ev_timer *w, int revents)
-\&   {
-\&     ev_check_stop (EV_A_ w);
-\&   }
-\&
-\&   ev_check check;
-\&   ev_check_init (&check, check_cb);
-\&   ev_check_start (EV_DEFAULT_ &check);
-\&   ev_run (EV_DEFAULT_ 0);
-.Ve
-.SH "EMBEDDING"
-.IX Header "EMBEDDING"
-Libev can (and often is) directly embedded into host
-applications. Examples of applications that embed it include the Deliantra
-Game Server, the \s-1EV\s0 perl module, the \s-1GNU\s0 Virtual Private Ethernet (gvpe)
-and rxvt-unicode.
-.PP
-The goal is to enable you to just copy the necessary files into your
-source directory without having to change even a single line in them, so
-you can easily upgrade by simply copying (or having a checked-out copy of
-libev somewhere in your source tree).
-.SS "\s-1FILESETS\s0"
-.IX Subsection "FILESETS"
-Depending on what features you need you need to include one or more sets of files
-in your application.
-.PP
-\fI\s-1CORE\s0 \s-1EVENT\s0 \s-1LOOP\s0\fR
-.IX Subsection "CORE EVENT LOOP"
-.PP
-To include only the libev core (all the \f(CW\*(C`ev_*\*(C'\fR functions), with manual
-configuration (no autoconf):
-.PP
-.Vb 2
-\&   #define EV_STANDALONE 1
-\&   #include "ev.c"
-.Ve
-.PP
-This will automatically include \fIev.h\fR, too, and should be done in a
-single C source file only to provide the function implementations. To use
-it, do the same for \fIev.h\fR in all files wishing to use this \s-1API\s0 (best
-done by writing a wrapper around \fIev.h\fR that you can include instead and
-where you can put other configuration options):
-.PP
-.Vb 2
-\&   #define EV_STANDALONE 1
-\&   #include "ev.h"
-.Ve
-.PP
-Both header files and implementation files can be compiled with a \*(C+
-compiler (at least, that's a stated goal, and breakage will be treated
-as a bug).
-.PP
-You need the following files in your source tree, or in a directory
-in your include path (e.g. in libev/ when using \-Ilibev):
-.PP
-.Vb 4
-\&   ev.h
-\&   ev.c
-\&   ev_vars.h
-\&   ev_wrap.h
-\&
-\&   ev_win32.c      required on win32 platforms only
-\&
-\&   ev_select.c     only when select backend is enabled (which is enabled by default)
-\&   ev_poll.c       only when poll backend is enabled (disabled by default)
-\&   ev_epoll.c      only when the epoll backend is enabled (disabled by default)
-\&   ev_kqueue.c     only when the kqueue backend is enabled (disabled by default)
-\&   ev_port.c       only when the solaris port backend is enabled (disabled by default)
-.Ve
-.PP
-\&\fIev.c\fR includes the backend files directly when enabled, so you only need
-to compile this single file.
-.PP
-\fI\s-1LIBEVENT\s0 \s-1COMPATIBILITY\s0 \s-1API\s0\fR
-.IX Subsection "LIBEVENT COMPATIBILITY API"
-.PP
-To include the libevent compatibility \s-1API\s0, also include:
-.PP
-.Vb 1
-\&   #include "event.c"
-.Ve
-.PP
-in the file including \fIev.c\fR, and:
-.PP
-.Vb 1
-\&   #include "event.h"
-.Ve
-.PP
-in the files that want to use the libevent \s-1API\s0. This also includes \fIev.h\fR.
-.PP
-You need the following additional files for this:
-.PP
-.Vb 2
-\&   event.h
-\&   event.c
-.Ve
-.PP
-\fI\s-1AUTOCONF\s0 \s-1SUPPORT\s0\fR
-.IX Subsection "AUTOCONF SUPPORT"
-.PP
-Instead of using \f(CW\*(C`EV_STANDALONE=1\*(C'\fR and providing your configuration in
-whatever way you want, you can also \f(CW\*(C`m4_include([libev.m4])\*(C'\fR in your
-\&\fIconfigure.ac\fR and leave \f(CW\*(C`EV_STANDALONE\*(C'\fR undefined. \fIev.c\fR will then
-include \fIconfig.h\fR and configure itself accordingly.
-.PP
-For this of course you need the m4 file:
-.PP
-.Vb 1
-\&   libev.m4
-.Ve
-.SS "\s-1PREPROCESSOR\s0 \s-1SYMBOLS/MACROS\s0"
-.IX Subsection "PREPROCESSOR SYMBOLS/MACROS"
-Libev can be configured via a variety of preprocessor symbols you have to
-define before including (or compiling) any of its files. The default in
-the absence of autoconf is documented for every option.
-.PP
-Symbols marked with \*(L"(h)\*(R" do not change the \s-1ABI\s0, and can have different
-values when compiling libev vs. including \fIev.h\fR, so it is permissible
-to redefine them before including \fIev.h\fR without breaking compatibility
-to a compiled library. All other symbols change the \s-1ABI\s0, which means all
-users of libev and the libev code itself must be compiled with compatible
-settings.
-.IP "\s-1EV_COMPAT3\s0 (h)" 4
-.IX Item "EV_COMPAT3 (h)"
-Backwards compatibility is a major concern for libev. This is why this
-release of libev comes with wrappers for the functions and symbols that
-have been renamed between libev version 3 and 4.
-.Sp
-You can disable these wrappers (to test compatibility with future
-versions) by defining \f(CW\*(C`EV_COMPAT3\*(C'\fR to \f(CW0\fR when compiling your
-sources. This has the additional advantage that you can drop the \f(CW\*(C`struct\*(C'\fR
-from \f(CW\*(C`struct ev_loop\*(C'\fR declarations, as libev will provide an \f(CW\*(C`ev_loop\*(C'\fR
-typedef in that case.
-.Sp
-In some future version, the default for \f(CW\*(C`EV_COMPAT3\*(C'\fR will become \f(CW0\fR,
-and in some even more future version the compatibility code will be
-removed completely.
-.IP "\s-1EV_STANDALONE\s0 (h)" 4
-.IX Item "EV_STANDALONE (h)"
-Must always be \f(CW1\fR if you do not use autoconf configuration, which
-keeps libev from including \fIconfig.h\fR, and it also defines dummy
-implementations for some libevent functions (such as logging, which is not
-supported). It will also not define any of the structs usually found in
-\&\fIevent.h\fR that are not directly supported by the libev core alone.
-.Sp
-In standalone mode, libev will still try to automatically deduce the
-configuration, but has to be more conservative.
-.IP "\s-1EV_USE_MONOTONIC\s0" 4
-.IX Item "EV_USE_MONOTONIC"
-If defined to be \f(CW1\fR, libev will try to detect the availability of the
-monotonic clock option at both compile time and runtime. Otherwise no
-use of the monotonic clock option will be attempted. If you enable this,
-you usually have to link against librt or something similar. Enabling it
-when the functionality isn't available is safe, though, although you have
-to make sure you link against any libraries where the \f(CW\*(C`clock_gettime\*(C'\fR
-function is hiding in (often \fI\-lrt\fR). See also \f(CW\*(C`EV_USE_CLOCK_SYSCALL\*(C'\fR.
-.IP "\s-1EV_USE_REALTIME\s0" 4
-.IX Item "EV_USE_REALTIME"
-If defined to be \f(CW1\fR, libev will try to detect the availability of the
-real-time clock option at compile time (and assume its availability
-at runtime if successful). Otherwise no use of the real-time clock
-option will be attempted. This effectively replaces \f(CW\*(C`gettimeofday\*(C'\fR
-by \f(CW\*(C`clock_get (CLOCK_REALTIME, ...)\*(C'\fR and will not normally affect
-correctness. See the note about libraries in the description of
-\&\f(CW\*(C`EV_USE_MONOTONIC\*(C'\fR, though. Defaults to the opposite value of
-\&\f(CW\*(C`EV_USE_CLOCK_SYSCALL\*(C'\fR.
-.IP "\s-1EV_USE_CLOCK_SYSCALL\s0" 4
-.IX Item "EV_USE_CLOCK_SYSCALL"
-If defined to be \f(CW1\fR, libev will try to use a direct syscall instead
-of calling the system-provided \f(CW\*(C`clock_gettime\*(C'\fR function. This option
-exists because on GNU/Linux, \f(CW\*(C`clock_gettime\*(C'\fR is in \f(CW\*(C`librt\*(C'\fR, but \f(CW\*(C`librt\*(C'\fR
-unconditionally pulls in \f(CW\*(C`libpthread\*(C'\fR, slowing down single-threaded
-programs needlessly. Using a direct syscall is slightly slower (in
-theory), because no optimised vdso implementation can be used, but avoids
-the pthread dependency. Defaults to \f(CW1\fR on GNU/Linux with glibc 2.x or
-higher, as it simplifies linking (no need for \f(CW\*(C`\-lrt\*(C'\fR).
-.IP "\s-1EV_USE_NANOSLEEP\s0" 4
-.IX Item "EV_USE_NANOSLEEP"
-If defined to be \f(CW1\fR, libev will assume that \f(CW\*(C`nanosleep ()\*(C'\fR is available
-and will use it for delays. Otherwise it will use \f(CW\*(C`select ()\*(C'\fR.
-.IP "\s-1EV_USE_EVENTFD\s0" 4
-.IX Item "EV_USE_EVENTFD"
-If defined to be \f(CW1\fR, then libev will assume that \f(CW\*(C`eventfd ()\*(C'\fR is
-available and will probe for kernel support at runtime. This will improve
-\&\f(CW\*(C`ev_signal\*(C'\fR and \f(CW\*(C`ev_async\*(C'\fR performance and reduce resource consumption.
-If undefined, it will be enabled if the headers indicate GNU/Linux + Glibc
-2.7 or newer, otherwise disabled.
-.IP "\s-1EV_USE_SELECT\s0" 4
-.IX Item "EV_USE_SELECT"
-If undefined or defined to be \f(CW1\fR, libev will compile in support for the
-\&\f(CW\*(C`select\*(C'\fR(2) backend. No attempt at auto-detection will be done: if no
-other method takes over, select will be it. Otherwise the select backend
-will not be compiled in.
-.IP "\s-1EV_SELECT_USE_FD_SET\s0" 4
-.IX Item "EV_SELECT_USE_FD_SET"
-If defined to \f(CW1\fR, then the select backend will use the system \f(CW\*(C`fd_set\*(C'\fR
-structure. This is useful if libev doesn't compile due to a missing
-\&\f(CW\*(C`NFDBITS\*(C'\fR or \f(CW\*(C`fd_mask\*(C'\fR definition or it mis-guesses the bitset layout
-on exotic systems. This usually limits the range of file descriptors to
-some low limit such as 1024 or might have other limitations (winsocket
-only allows 64 sockets). The \f(CW\*(C`FD_SETSIZE\*(C'\fR macro, set before compilation,
-configures the maximum size of the \f(CW\*(C`fd_set\*(C'\fR.
-.IP "\s-1EV_SELECT_IS_WINSOCKET\s0" 4
-.IX Item "EV_SELECT_IS_WINSOCKET"
-When defined to \f(CW1\fR, the select backend will assume that
-select/socket/connect etc. don't understand file descriptors but
-wants osf handles on win32 (this is the case when the select to
-be used is the winsock select). This means that it will call
-\&\f(CW\*(C`_get_osfhandle\*(C'\fR on the fd to convert it to an \s-1OS\s0 handle. Otherwise,
-it is assumed that all these functions actually work on fds, even
-on win32. Should not be defined on non\-win32 platforms.
-.IP "\s-1EV_FD_TO_WIN32_HANDLE\s0(fd)" 4
-.IX Item "EV_FD_TO_WIN32_HANDLE(fd)"
-If \f(CW\*(C`EV_SELECT_IS_WINSOCKET\*(C'\fR is enabled, then libev needs a way to map
-file descriptors to socket handles. When not defining this symbol (the
-default), then libev will call \f(CW\*(C`_get_osfhandle\*(C'\fR, which is usually
-correct. In some cases, programs use their own file descriptor management,
-in which case they can provide this function to map fds to socket handles.
-.IP "\s-1EV_WIN32_HANDLE_TO_FD\s0(handle)" 4
-.IX Item "EV_WIN32_HANDLE_TO_FD(handle)"
-If \f(CW\*(C`EV_SELECT_IS_WINSOCKET\*(C'\fR then libev maps handles to file descriptors
-using the standard \f(CW\*(C`_open_osfhandle\*(C'\fR function. For programs implementing
-their own fd to handle mapping, overwriting this function makes it easier
-to do so. This can be done by defining this macro to an appropriate value.
-.IP "\s-1EV_WIN32_CLOSE_FD\s0(fd)" 4
-.IX Item "EV_WIN32_CLOSE_FD(fd)"
-If programs implement their own fd to handle mapping on win32, then this
-macro can be used to override the \f(CW\*(C`close\*(C'\fR function, useful to unregister
-file descriptors again. Note that the replacement function has to close
-the underlying \s-1OS\s0 handle.
-.IP "\s-1EV_USE_POLL\s0" 4
-.IX Item "EV_USE_POLL"
-If defined to be \f(CW1\fR, libev will compile in support for the \f(CW\*(C`poll\*(C'\fR(2)
-backend. Otherwise it will be enabled on non\-win32 platforms. It
-takes precedence over select.
-.IP "\s-1EV_USE_EPOLL\s0" 4
-.IX Item "EV_USE_EPOLL"
-If defined to be \f(CW1\fR, libev will compile in support for the Linux
-\&\f(CW\*(C`epoll\*(C'\fR(7) backend. Its availability will be detected at runtime,
-otherwise another method will be used as fallback. This is the preferred
-backend for GNU/Linux systems. If undefined, it will be enabled if the
-headers indicate GNU/Linux + Glibc 2.4 or newer, otherwise disabled.
-.IP "\s-1EV_USE_KQUEUE\s0" 4
-.IX Item "EV_USE_KQUEUE"
-If defined to be \f(CW1\fR, libev will compile in support for the \s-1BSD\s0 style
-\&\f(CW\*(C`kqueue\*(C'\fR(2) backend. Its actual availability will be detected at runtime,
-otherwise another method will be used as fallback. This is the preferred
-backend for \s-1BSD\s0 and BSD-like systems, although on most BSDs kqueue only
-supports some types of fds correctly (the only platform we found that
-supports ptys for example was NetBSD), so kqueue might be compiled in, but
-not be used unless explicitly requested. The best way to use it is to find
-out whether kqueue supports your type of fd properly and use an embedded
-kqueue loop.
-.IP "\s-1EV_USE_PORT\s0" 4
-.IX Item "EV_USE_PORT"
-If defined to be \f(CW1\fR, libev will compile in support for the Solaris
-10 port style backend. Its availability will be detected at runtime,
-otherwise another method will be used as fallback. This is the preferred
-backend for Solaris 10 systems.
-.IP "\s-1EV_USE_DEVPOLL\s0" 4
-.IX Item "EV_USE_DEVPOLL"
-Reserved for future expansion, works like the \s-1USE\s0 symbols above.
-.IP "\s-1EV_USE_INOTIFY\s0" 4
-.IX Item "EV_USE_INOTIFY"
-If defined to be \f(CW1\fR, libev will compile in support for the Linux inotify
-interface to speed up \f(CW\*(C`ev_stat\*(C'\fR watchers. Its actual availability will
-be detected at runtime. If undefined, it will be enabled if the headers
-indicate GNU/Linux + Glibc 2.4 or newer, otherwise disabled.
-.IP "\s-1EV_ATOMIC_T\s0" 4
-.IX Item "EV_ATOMIC_T"
-Libev requires an integer type (suitable for storing \f(CW0\fR or \f(CW1\fR) whose
-access is atomic with respect to other threads or signal contexts. No such
-type is easily found in the C language, so you can provide your own type
-that you know is safe for your purposes. It is used both for signal handler \*(L"locking\*(R"
-as well as for signal and thread safety in \f(CW\*(C`ev_async\*(C'\fR watchers.
-.Sp
-In the absence of this define, libev will use \f(CW\*(C`sig_atomic_t volatile\*(C'\fR
-(from \fIsignal.h\fR), which is usually good enough on most platforms.
-.IP "\s-1EV_H\s0 (h)" 4
-.IX Item "EV_H (h)"
-The name of the \fIev.h\fR header file used to include it. The default if
-undefined is \f(CW"ev.h"\fR in \fIevent.h\fR, \fIev.c\fR and \fIev++.h\fR. This can be
-used to virtually rename the \fIev.h\fR header file in case of conflicts.
-.IP "\s-1EV_CONFIG_H\s0 (h)" 4
-.IX Item "EV_CONFIG_H (h)"
-If \f(CW\*(C`EV_STANDALONE\*(C'\fR isn't \f(CW1\fR, this variable can be used to override
-\&\fIev.c\fR's idea of where to find the \fIconfig.h\fR file, similarly to
-\&\f(CW\*(C`EV_H\*(C'\fR, above.
-.IP "\s-1EV_EVENT_H\s0 (h)" 4
-.IX Item "EV_EVENT_H (h)"
-Similarly to \f(CW\*(C`EV_H\*(C'\fR, this macro can be used to override \fIevent.c\fR's idea
-of how the \fIevent.h\fR header can be found, the default is \f(CW"event.h"\fR.
-.IP "\s-1EV_PROTOTYPES\s0 (h)" 4
-.IX Item "EV_PROTOTYPES (h)"
-If defined to be \f(CW0\fR, then \fIev.h\fR will not define any function
-prototypes, but still define all the structs and other symbols. This is
-occasionally useful if you want to provide your own wrapper functions
-around libev functions.
-.IP "\s-1EV_MULTIPLICITY\s0" 4
-.IX Item "EV_MULTIPLICITY"
-If undefined or defined to \f(CW1\fR, then all event-loop-specific functions
-will have the \f(CW\*(C`struct ev_loop *\*(C'\fR as first argument, and you can create
-additional independent event loops. Otherwise there will be no support
-for multiple event loops and there is no first event loop pointer
-argument. Instead, all functions act on the single default loop.
-.IP "\s-1EV_MINPRI\s0" 4
-.IX Item "EV_MINPRI"
-.PD 0
-.IP "\s-1EV_MAXPRI\s0" 4
-.IX Item "EV_MAXPRI"
-.PD
-The range of allowed priorities. \f(CW\*(C`EV_MINPRI\*(C'\fR must be smaller or equal to
-\&\f(CW\*(C`EV_MAXPRI\*(C'\fR, but otherwise there are no non-obvious limitations. You can
-provide for more priorities by overriding those symbols (usually defined
-to be \f(CW\*(C`\-2\*(C'\fR and \f(CW2\fR, respectively).
-.Sp
-When doing priority-based operations, libev usually has to linearly search
-all the priorities, so having many of them (hundreds) uses a lot of space
-and time, so using the defaults of five priorities (\-2 .. +2) is usually
-fine.
-.Sp
-If your embedding application does not need any priorities, defining these
-both to \f(CW0\fR will save some memory and \s-1CPU\s0.
-.IP "\s-1EV_PERIODIC_ENABLE\s0, \s-1EV_IDLE_ENABLE\s0, \s-1EV_EMBED_ENABLE\s0, \s-1EV_STAT_ENABLE\s0, \s-1EV_PREPARE_ENABLE\s0, \s-1EV_CHECK_ENABLE\s0, \s-1EV_FORK_ENABLE\s0, \s-1EV_SIGNAL_ENABLE\s0, \s-1EV_ASYNC_ENABLE\s0, \s-1EV_CHILD_ENABLE\s0." 4
-.IX Item "EV_PERIODIC_ENABLE, EV_IDLE_ENABLE, EV_EMBED_ENABLE, EV_STAT_ENABLE, EV_PREPARE_ENABLE, EV_CHECK_ENABLE, EV_FORK_ENABLE, EV_SIGNAL_ENABLE, EV_ASYNC_ENABLE, EV_CHILD_ENABLE."
-If undefined or defined to be \f(CW1\fR (and the platform supports it), then
-the respective watcher type is supported. If defined to be \f(CW0\fR, then it
-is not. Disabling watcher types mainly saves code size.
-.IP "\s-1EV_FEATURES\s0" 4
-.IX Item "EV_FEATURES"
-If you need to shave off some kilobytes of code at the expense of some
-speed (but with the full \s-1API\s0), you can define this symbol to request
-certain subsets of functionality. The default is to enable all features
-that can be enabled on the platform.
-.Sp
-A typical way to use this symbol is to define it to \f(CW0\fR (or to a bitset
-with some broad features you want) and then selectively re-enable
-additional parts you want, for example if you want everything minimal,
-but multiple event loop support, async and child watchers and the poll
-backend, use this:
-.Sp
-.Vb 5
-\&   #define EV_FEATURES 0
-\&   #define EV_MULTIPLICITY 1
-\&   #define EV_USE_POLL 1
-\&   #define EV_CHILD_ENABLE 1
-\&   #define EV_ASYNC_ENABLE 1
-.Ve
-.Sp
-The actual value is a bitset, it can be a combination of the following
-values:
-.RS 4
-.ie n .IP "1 \- faster/larger code" 4
-.el .IP "\f(CW1\fR \- faster/larger code" 4
-.IX Item "1 - faster/larger code"
-Use larger code to speed up some operations.
-.Sp
-Currently this is used to override some inlining decisions (enlarging the
-code size by roughly 30% on amd64).
-.Sp
-When optimising for size, use of compiler flags such as \f(CW\*(C`\-Os\*(C'\fR with
-gcc is recommended, as well as \f(CW\*(C`\-DNDEBUG\*(C'\fR, as libev contains a number of
-assertions.
-.ie n .IP "2 \- faster/larger data structures" 4
-.el .IP "\f(CW2\fR \- faster/larger data structures" 4
-.IX Item "2 - faster/larger data structures"
-Replaces the small 2\-heap for timer management by a faster 4\-heap, larger
-hash table sizes and so on. This will usually further increase code size
-and can additionally have an effect on the size of data structures at
-runtime.
-.ie n .IP "4 \- full \s-1API\s0 configuration" 4
-.el .IP "\f(CW4\fR \- full \s-1API\s0 configuration" 4
-.IX Item "4 - full API configuration"
-This enables priorities (sets \f(CW\*(C`EV_MAXPRI\*(C'\fR=2 and \f(CW\*(C`EV_MINPRI\*(C'\fR=\-2), and
-enables multiplicity (\f(CW\*(C`EV_MULTIPLICITY\*(C'\fR=1).
-.ie n .IP "8 \- full \s-1API\s0" 4
-.el .IP "\f(CW8\fR \- full \s-1API\s0" 4
-.IX Item "8 - full API"
-This enables a lot of the \*(L"lesser used\*(R" \s-1API\s0 functions. See \f(CW\*(C`ev.h\*(C'\fR for
-details on which parts of the \s-1API\s0 are still available without this
-feature, and do not complain if this subset changes over time.
-.ie n .IP "16 \- enable all optional watcher types" 4
-.el .IP "\f(CW16\fR \- enable all optional watcher types" 4
-.IX Item "16 - enable all optional watcher types"
-Enables all optional watcher types.  If you want to selectively enable
-only some watcher types other than I/O and timers (e.g. prepare,
-embed, async, child...) you can enable them manually by defining
-\&\f(CW\*(C`EV_watchertype_ENABLE\*(C'\fR to \f(CW1\fR instead.
-.ie n .IP "32 \- enable all backends" 4
-.el .IP "\f(CW32\fR \- enable all backends" 4
-.IX Item "32 - enable all backends"
-This enables all backends \- without this feature, you need to enable at
-least one backend manually (\f(CW\*(C`EV_USE_SELECT\*(C'\fR is a good choice).
-.ie n .IP "64 \- enable OS-specific ""helper"" APIs" 4
-.el .IP "\f(CW64\fR \- enable OS-specific ``helper'' APIs" 4
-.IX Item "64 - enable OS-specific helper APIs"
-Enable inotify, eventfd, signalfd and similar OS-specific helper APIs by
-default.
-.RE
-.RS 4
-.Sp
-Compiling with \f(CW\*(C`gcc \-Os \-DEV_STANDALONE \-DEV_USE_EPOLL=1 \-DEV_FEATURES=0\*(C'\fR
-reduces the compiled size of libev from 24.7Kb code/2.8Kb data to 6.5Kb
-code/0.3Kb data on my GNU/Linux amd64 system, while still giving you I/O
-watchers, timers and monotonic clock support.
-.Sp
-With an intelligent-enough linker (gcc+binutils are intelligent enough
-when you use \f(CW\*(C`\-Wl,\-\-gc\-sections \-ffunction\-sections\*(C'\fR) functions unused by
-your program might be left out as well \- a binary starting a timer and an
-I/O watcher then might come out at only 5Kb.
-.RE
-.IP "\s-1EV_AVOID_STDIO\s0" 4
-.IX Item "EV_AVOID_STDIO"
-If this is set to \f(CW1\fR at compiletime, then libev will avoid using stdio
-functions (printf, scanf, perror etc.). This will increase the code size
-somewhat, but if your program doesn't otherwise depend on stdio and your
-libc allows it, this avoids linking in the stdio library which is quite
-big.
-.Sp
-Note that error messages might become less precise when this option is
-enabled.
-.IP "\s-1EV_NSIG\s0" 4
-.IX Item "EV_NSIG"
-The highest supported signal number, +1 (or, the number of
-signals): Normally, libev tries to deduce the maximum number of signals
-automatically, but sometimes this fails, in which case it can be
-specified. Also, using a lower number than detected (\f(CW32\fR should be
-good for about any system in existence) can save some memory, as libev
-statically allocates some 12\-24 bytes per signal number.
-.IP "\s-1EV_PID_HASHSIZE\s0" 4
-.IX Item "EV_PID_HASHSIZE"
-\&\f(CW\*(C`ev_child\*(C'\fR watchers use a small hash table to distribute workload by
-pid. The default size is \f(CW16\fR (or \f(CW1\fR with \f(CW\*(C`EV_FEATURES\*(C'\fR disabled),
-usually more than enough. If you need to manage thousands of children you
-might want to increase this value (\fImust\fR be a power of two).
-.IP "\s-1EV_INOTIFY_HASHSIZE\s0" 4
-.IX Item "EV_INOTIFY_HASHSIZE"
-\&\f(CW\*(C`ev_stat\*(C'\fR watchers use a small hash table to distribute workload by
-inotify watch id. The default size is \f(CW16\fR (or \f(CW1\fR with \f(CW\*(C`EV_FEATURES\*(C'\fR
-disabled), usually more than enough. If you need to manage thousands of
-\&\f(CW\*(C`ev_stat\*(C'\fR watchers you might want to increase this value (\fImust\fR be a
-power of two).
-.IP "\s-1EV_USE_4HEAP\s0" 4
-.IX Item "EV_USE_4HEAP"
-Heaps are not very cache-efficient. To improve the cache-efficiency of the
-timer and periodics heaps, libev uses a 4\-heap when this symbol is defined
-to \f(CW1\fR. The 4\-heap uses more complicated (longer) code but has noticeably
-faster performance with many (thousands) of watchers.
-.Sp
-The default is \f(CW1\fR, unless \f(CW\*(C`EV_FEATURES\*(C'\fR overrides it, in which case it
-will be \f(CW0\fR.
-.IP "\s-1EV_HEAP_CACHE_AT\s0" 4
-.IX Item "EV_HEAP_CACHE_AT"
-Heaps are not very cache-efficient. To improve the cache-efficiency of the
-timer and periodics heaps, libev can cache the timestamp (\fIat\fR) within
-the heap structure (selected by defining \f(CW\*(C`EV_HEAP_CACHE_AT\*(C'\fR to \f(CW1\fR),
-which uses 8\-12 bytes more per watcher and a few hundred bytes more code,
-but avoids random read accesses on heap changes. This improves performance
-noticeably with many (hundreds) of watchers.
-.Sp
-The default is \f(CW1\fR, unless \f(CW\*(C`EV_FEATURES\*(C'\fR overrides it, in which case it
-will be \f(CW0\fR.
-.IP "\s-1EV_VERIFY\s0" 4
-.IX Item "EV_VERIFY"
-Controls how much internal verification (see \f(CW\*(C`ev_verify ()\*(C'\fR) will
-be done: If set to \f(CW0\fR, no internal verification code will be compiled
-in. If set to \f(CW1\fR, then verification code will be compiled in, but not
-called. If set to \f(CW2\fR, then the internal verification code will be
-called once per loop, which can slow down libev. If set to \f(CW3\fR, then the
-verification code will be called very frequently, which will slow down
-libev considerably.
-.Sp
-The default is \f(CW1\fR, unless \f(CW\*(C`EV_FEATURES\*(C'\fR overrides it, in which case it
-will be \f(CW0\fR.
-.IP "\s-1EV_COMMON\s0" 4
-.IX Item "EV_COMMON"
-By default, all watchers have a \f(CW\*(C`void *data\*(C'\fR member. By redefining
-this macro to something else you can include more and other types of
-members. You have to define it each time you include one of the files,
-though, and it must be identical each time.
-.Sp
-For example, the perl \s-1EV\s0 module uses something like this:
-.Sp
-.Vb 3
-\&   #define EV_COMMON                       \e
-\&     SV *self; /* contains this struct */  \e
-\&     SV *cb_sv, *fh /* note no trailing ";" */
-.Ve
-.IP "\s-1EV_CB_DECLARE\s0 (type)" 4
-.IX Item "EV_CB_DECLARE (type)"
-.PD 0
-.IP "\s-1EV_CB_INVOKE\s0 (watcher, revents)" 4
-.IX Item "EV_CB_INVOKE (watcher, revents)"
-.IP "ev_set_cb (ev, cb)" 4
-.IX Item "ev_set_cb (ev, cb)"
-.PD
-Can be used to change the callback member declaration in each watcher,
-and the way callbacks are invoked and set. Must expand to a struct member
-definition and a statement, respectively. See the \fIev.h\fR header file for
-their default definitions. One possible use for overriding these is to
-avoid the \f(CW\*(C`struct ev_loop *\*(C'\fR as first argument in all cases, or to use
-method calls instead of plain function calls in \*(C+.
-.SS "\s-1EXPORTED\s0 \s-1API\s0 \s-1SYMBOLS\s0"
-.IX Subsection "EXPORTED API SYMBOLS"
-If you need to re-export the \s-1API\s0 (e.g. via a \s-1DLL\s0) and you need a list of
-exported symbols, you can use the provided \fISymbol.*\fR files which list
-all public symbols, one per line:
-.PP
-.Vb 2
-\&   Symbols.ev      for libev proper
-\&   Symbols.event   for the libevent emulation
-.Ve
-.PP
-This can also be used to rename all public symbols to avoid clashes with
-multiple versions of libev linked together (which is obviously bad in
-itself, but sometimes it is inconvenient to avoid this).
-.PP
-A sed command like this will create wrapper \f(CW\*(C`#define\*(C'\fR's that you need to
-include before including \fIev.h\fR:
-.PP
-.Vb 1
-\&   <Symbols.ev sed \-e "s/.*/#define & myprefix_&/" >wrap.h
-.Ve
-.PP
-This would create a file \fIwrap.h\fR which essentially looks like this:
-.PP
-.Vb 4
-\&   #define ev_backend     myprefix_ev_backend
-\&   #define ev_check_start myprefix_ev_check_start
-\&   #define ev_check_stop  myprefix_ev_check_stop
-\&   ...
-.Ve
-.SS "\s-1EXAMPLES\s0"
-.IX Subsection "EXAMPLES"
-For a real-world example of a program the includes libev
-verbatim, you can have a look at the \s-1EV\s0 perl module
-(<http://software.schmorp.de/pkg/EV.html>). It has the libev files in
-the \fIlibev/\fR subdirectory and includes them in the \fI\s-1EV/EVAPI\s0.h\fR (public
-interface) and \fI\s-1EV\s0.xs\fR (implementation) files. Only the \fI\s-1EV\s0.xs\fR file
-will be compiled. It is pretty complex because it provides its own header
-file.
-.PP
-The usage in rxvt-unicode is simpler. It has a \fIev_cpp.h\fR header file
-that everybody includes and which overrides some configure choices:
-.PP
-.Vb 8
-\&   #define EV_FEATURES 8
-\&   #define EV_USE_SELECT 1
-\&   #define EV_PREPARE_ENABLE 1
-\&   #define EV_IDLE_ENABLE 1
-\&   #define EV_SIGNAL_ENABLE 1
-\&   #define EV_CHILD_ENABLE 1
-\&   #define EV_USE_STDEXCEPT 0
-\&   #define EV_CONFIG_H <config.h>
-\&
-\&   #include "ev++.h"
-.Ve
-.PP
-And a \fIev_cpp.C\fR implementation file that contains libev proper and is compiled:
-.PP
-.Vb 2
-\&   #include "ev_cpp.h"
-\&   #include "ev.c"
-.Ve
-.SH "INTERACTION WITH OTHER PROGRAMS, LIBRARIES OR THE ENVIRONMENT"
-.IX Header "INTERACTION WITH OTHER PROGRAMS, LIBRARIES OR THE ENVIRONMENT"
-.SS "\s-1THREADS\s0 \s-1AND\s0 \s-1COROUTINES\s0"
-.IX Subsection "THREADS AND COROUTINES"
-\fI\s-1THREADS\s0\fR
-.IX Subsection "THREADS"
-.PP
-All libev functions are reentrant and thread-safe unless explicitly
-documented otherwise, but libev implements no locking itself. This means
-that you can use as many loops as you want in parallel, as long as there
-are no concurrent calls into any libev function with the same loop
-parameter (\f(CW\*(C`ev_default_*\*(C'\fR calls have an implicit default loop parameter,
-of course): libev guarantees that different event loops share no data
-structures that need any locking.
-.PP
-Or to put it differently: calls with different loop parameters can be done
-concurrently from multiple threads, calls with the same loop parameter
-must be done serially (but can be done from different threads, as long as
-only one thread ever is inside a call at any point in time, e.g. by using
-a mutex per loop).
-.PP
-Specifically to support threads (and signal handlers), libev implements
-so-called \f(CW\*(C`ev_async\*(C'\fR watchers, which allow some limited form of
-concurrency on the same event loop, namely waking it up \*(L"from the
-outside\*(R".
-.PP
-If you want to know which design (one loop, locking, or multiple loops
-without or something else still) is best for your problem, then I cannot
-help you, but here is some generic advice:
-.IP "\(bu" 4
-most applications have a main thread: use the default libev loop
-in that thread, or create a separate thread running only the default loop.
-.Sp
-This helps integrating other libraries or software modules that use libev
-themselves and don't care/know about threading.
-.IP "\(bu" 4
-one loop per thread is usually a good model.
-.Sp
-Doing this is almost never wrong, sometimes a better-performance model
-exists, but it is always a good start.
-.IP "\(bu" 4
-other models exist, such as the leader/follower pattern, where one
-loop is handed through multiple threads in a kind of round-robin fashion.
-.Sp
-Choosing a model is hard \- look around, learn, know that usually you can do
-better than you currently do :\-)
-.IP "\(bu" 4
-often you need to talk to some other thread which blocks in the
-event loop.
-.Sp
-\&\f(CW\*(C`ev_async\*(C'\fR watchers can be used to wake them up from other threads safely
-(or from signal contexts...).
-.Sp
-An example use would be to communicate signals or other events that only
-work in the default loop by registering the signal watcher with the
-default loop and triggering an \f(CW\*(C`ev_async\*(C'\fR watcher from the default loop
-watcher callback into the event loop interested in the signal.
-.PP
-See also \*(L"\s-1THREAD\s0 \s-1LOCKING\s0 \s-1EXAMPLE\s0\*(R".
-.PP
-\fI\s-1COROUTINES\s0\fR
-.IX Subsection "COROUTINES"
-.PP
-Libev is very accommodating to coroutines (\*(L"cooperative threads\*(R"):
-libev fully supports nesting calls to its functions from different
-coroutines (e.g. you can call \f(CW\*(C`ev_run\*(C'\fR on the same loop from two
-different coroutines, and switch freely between both coroutines running
-the loop, as long as you don't confuse yourself). The only exception is
-that you must not do this from \f(CW\*(C`ev_periodic\*(C'\fR reschedule callbacks.
-.PP
-Care has been taken to ensure that libev does not keep local state inside
-\&\f(CW\*(C`ev_run\*(C'\fR, and other calls do not usually allow for coroutine switches as
-they do not call any callbacks.
-.SS "\s-1COMPILER\s0 \s-1WARNINGS\s0"
-.IX Subsection "COMPILER WARNINGS"
-Depending on your compiler and compiler settings, you might get no or a
-lot of warnings when compiling libev code. Some people are apparently
-scared by this.
-.PP
-However, these are unavoidable for many reasons. For one, each compiler
-has different warnings, and each user has different tastes regarding
-warning options. \*(L"Warn-free\*(R" code therefore cannot be a goal except when
-targeting a specific compiler and compiler-version.
-.PP
-Another reason is that some compiler warnings require elaborate
-workarounds, or other changes to the code that make it less clear and less
-maintainable.
-.PP
-And of course, some compiler warnings are just plain stupid, or simply
-wrong (because they don't actually warn about the condition their message
-seems to warn about). For example, certain older gcc versions had some
-warnings that resulted in an extreme number of false positives. These have
-been fixed, but some people still insist on making code warn-free with
-such buggy versions.
-.PP
-While libev is written to generate as few warnings as possible,
-\&\*(L"warn-free\*(R" code is not a goal, and it is recommended not to build libev
-with any compiler warnings enabled unless you are prepared to cope with
-them (e.g. by ignoring them). Remember that warnings are just that:
-warnings, not errors, or proof of bugs.
-.SS "\s-1VALGRIND\s0"
-.IX Subsection "VALGRIND"
-Valgrind has a special section here because it is a popular tool that is
-highly useful. Unfortunately, valgrind reports are very hard to interpret.
-.PP
-If you think you found a bug (memory leak, uninitialised data access etc.)
-in libev, then check twice: If valgrind reports something like:
-.PP
-.Vb 3
-\&   ==2274==    definitely lost: 0 bytes in 0 blocks.
-\&   ==2274==      possibly lost: 0 bytes in 0 blocks.
-\&   ==2274==    still reachable: 256 bytes in 1 blocks.
-.Ve
-.PP
-Then there is no memory leak, just as memory accounted to global variables
-is not a memleak \- the memory is still being referenced, and didn't leak.
-.PP
-Similarly, under some circumstances, valgrind might report kernel bugs
-as if it were a bug in libev (e.g. in realloc or in the poll backend,
-although an acceptable workaround has been found here), or it might be
-confused.
-.PP
-Keep in mind that valgrind is a very good tool, but only a tool. Don't
-make it into some kind of religion.
-.PP
-If you are unsure about something, feel free to contact the mailing list
-with the full valgrind report and an explanation on why you think this
-is a bug in libev (best check the archives, too :). However, don't be
-annoyed when you get a brisk \*(L"this is no bug\*(R" answer and take the chance
-of learning how to interpret valgrind properly.
-.PP
-If you need, for some reason, empty reports from valgrind for your project
-I suggest using suppression lists.
-.SH "PORTABILITY NOTES"
-.IX Header "PORTABILITY NOTES"
-.SS "\s-1GNU/LINUX\s0 32 \s-1BIT\s0 \s-1LIMITATIONS\s0"
-.IX Subsection "GNU/LINUX 32 BIT LIMITATIONS"
-GNU/Linux is the only common platform that supports 64 bit file/large file
-interfaces but \fIdisables\fR them by default.
-.PP
-That means that libev compiled in the default environment doesn't support
-files larger than 2GiB or so, which mainly affects \f(CW\*(C`ev_stat\*(C'\fR watchers.
-.PP
-Unfortunately, many programs try to work around this GNU/Linux issue
-by enabling the large file \s-1API\s0, which makes them incompatible with the
-standard libev compiled for their system.
-.PP
-Likewise, libev cannot enable the large file \s-1API\s0 itself as this would
-suddenly make it incompatible to the default compile time environment,
-i.e. all programs not using special compile switches.
-.SS "\s-1OS/X\s0 \s-1AND\s0 \s-1DARWIN\s0 \s-1BUGS\s0"
-.IX Subsection "OS/X AND DARWIN BUGS"
-The whole thing is a bug if you ask me \- basically any system interface
-you touch is broken, whether it is locales, poll, kqueue or even the
-OpenGL drivers.
-.PP
-\fI\f(CI\*(C`kqueue\*(C'\fI is buggy\fR
-.IX Subsection "kqueue is buggy"
-.PP
-The kqueue syscall is broken in all known versions \- most versions support
-only sockets, many support pipes.
-.PP
-Libev tries to work around this by not using \f(CW\*(C`kqueue\*(C'\fR by default on this
-rotten platform, but of course you can still ask for it when creating a
-loop \- embedding a socket-only kqueue loop into a select-based one is
-probably going to work well.
-.PP
-\fI\f(CI\*(C`poll\*(C'\fI is buggy\fR
-.IX Subsection "poll is buggy"
-.PP
-Instead of fixing \f(CW\*(C`kqueue\*(C'\fR, Apple replaced their (working) \f(CW\*(C`poll\*(C'\fR
-implementation by something calling \f(CW\*(C`kqueue\*(C'\fR internally around the 10.5.6
-release, so now \f(CW\*(C`kqueue\*(C'\fR \fIand\fR \f(CW\*(C`poll\*(C'\fR are broken.
-.PP
-Libev tries to work around this by not using \f(CW\*(C`poll\*(C'\fR by default on
-this rotten platform, but of course you can still ask for it when creating
-a loop.
-.PP
-\fI\f(CI\*(C`select\*(C'\fI is buggy\fR
-.IX Subsection "select is buggy"
-.PP
-All that's left is \f(CW\*(C`select\*(C'\fR, and of course Apple found a way to fuck this
-one up as well: On \s-1OS/X\s0, \f(CW\*(C`select\*(C'\fR actively limits the number of file
-descriptors you can pass in to 1024 \- your program suddenly crashes when
-you use more.
-.PP
-There is an undocumented \*(L"workaround\*(R" for this \- defining
-\&\f(CW\*(C`_DARWIN_UNLIMITED_SELECT\*(C'\fR, which libev tries to use, so select \fIshould\fR
-work on \s-1OS/X\s0.
-.SS "\s-1SOLARIS\s0 \s-1PROBLEMS\s0 \s-1AND\s0 \s-1WORKAROUNDS\s0"
-.IX Subsection "SOLARIS PROBLEMS AND WORKAROUNDS"
-\fI\f(CI\*(C`errno\*(C'\fI reentrancy\fR
-.IX Subsection "errno reentrancy"
-.PP
-The default compile environment on Solaris is unfortunately so
-thread-unsafe that you can't even use components/libraries compiled
-without \f(CW\*(C`\-D_REENTRANT\*(C'\fR in a threaded program, which, of course, isn't
-defined by default. A valid, if stupid, implementation choice.
-.PP
-If you want to use libev in threaded environments you have to make sure
-it's compiled with \f(CW\*(C`_REENTRANT\*(C'\fR defined.
-.PP
-\fIEvent port backend\fR
-.IX Subsection "Event port backend"
-.PP
-The scalable event interface for Solaris is called \*(L"event
-ports\*(R". Unfortunately, this mechanism is very buggy in all major
-releases. If you run into high \s-1CPU\s0 usage, your program freezes or you get
-a large number of spurious wakeups, make sure you have all the relevant
-and latest kernel patches applied. No, I don't know which ones, but there
-are multiple ones to apply, and afterwards, event ports actually work
-great.
-.PP
-If you can't get it to work, you can try running the program by setting
-the environment variable \f(CW\*(C`LIBEV_FLAGS=3\*(C'\fR to only allow \f(CW\*(C`poll\*(C'\fR and
-\&\f(CW\*(C`select\*(C'\fR backends.
-.SS "\s-1AIX\s0 \s-1POLL\s0 \s-1BUG\s0"
-.IX Subsection "AIX POLL BUG"
-\&\s-1AIX\s0 unfortunately has a broken \f(CW\*(C`poll.h\*(C'\fR header. Libev works around
-this by trying to avoid the poll backend altogether (i.e. it's not even
-compiled in), which normally isn't a big problem as \f(CW\*(C`select\*(C'\fR works fine
-with large bitsets on \s-1AIX\s0, and \s-1AIX\s0 is dead anyway.
-.SS "\s-1WIN32\s0 \s-1PLATFORM\s0 \s-1LIMITATIONS\s0 \s-1AND\s0 \s-1WORKAROUNDS\s0"
-.IX Subsection "WIN32 PLATFORM LIMITATIONS AND WORKAROUNDS"
-\fIGeneral issues\fR
-.IX Subsection "General issues"
-.PP
-Win32 doesn't support any of the standards (e.g. \s-1POSIX\s0) that libev
-requires, and its I/O model is fundamentally incompatible with the \s-1POSIX\s0
-model. Libev still offers limited functionality on this platform in
-the form of the \f(CW\*(C`EVBACKEND_SELECT\*(C'\fR backend, and only supports socket
-descriptors. This only applies when using Win32 natively, not when using
-e.g. cygwin. Actually, it only applies to the microsofts own compilers,
-as every compielr comes with a slightly differently broken/incompatible
-environment.
-.PP
-Lifting these limitations would basically require the full
-re-implementation of the I/O system. If you are into this kind of thing,
-then note that glib does exactly that for you in a very portable way (note
-also that glib is the slowest event library known to man).
-.PP
-There is no supported compilation method available on windows except
-embedding it into other applications.
-.PP
-Sensible signal handling is officially unsupported by Microsoft \- libev
-tries its best, but under most conditions, signals will simply not work.
-.PP
-Not a libev limitation but worth mentioning: windows apparently doesn't
-accept large writes: instead of resulting in a partial write, windows will
-either accept everything or return \f(CW\*(C`ENOBUFS\*(C'\fR if the buffer is too large,
-so make sure you only write small amounts into your sockets (less than a
-megabyte seems safe, but this apparently depends on the amount of memory
-available).
-.PP
-Due to the many, low, and arbitrary limits on the win32 platform and
-the abysmal performance of winsockets, using a large number of sockets
-is not recommended (and not reasonable). If your program needs to use
-more than a hundred or so sockets, then likely it needs to use a totally
-different implementation for windows, as libev offers the \s-1POSIX\s0 readiness
-notification model, which cannot be implemented efficiently on windows
-(due to Microsoft monopoly games).
-.PP
-A typical way to use libev under windows is to embed it (see the embedding
-section for details) and use the following \fIevwrap.h\fR header file instead
-of \fIev.h\fR:
-.PP
-.Vb 2
-\&   #define EV_STANDALONE              /* keeps ev from requiring config.h */
-\&   #define EV_SELECT_IS_WINSOCKET 1   /* configure libev for windows select */
-\&
-\&   #include "ev.h"
-.Ve
-.PP
-And compile the following \fIevwrap.c\fR file into your project (make sure
-you do \fInot\fR compile the \fIev.c\fR or any other embedded source files!):
-.PP
-.Vb 2
-\&   #include "evwrap.h"
-\&   #include "ev.c"
-.Ve
-.PP
-\fIThe winsocket \f(CI\*(C`select\*(C'\fI function\fR
-.IX Subsection "The winsocket select function"
-.PP
-The winsocket \f(CW\*(C`select\*(C'\fR function doesn't follow \s-1POSIX\s0 in that it
-requires socket \fIhandles\fR and not socket \fIfile descriptors\fR (it is
-also extremely buggy). This makes select very inefficient, and also
-requires a mapping from file descriptors to socket handles (the Microsoft
-C runtime provides the function \f(CW\*(C`_open_osfhandle\*(C'\fR for this). See the
-discussion of the \f(CW\*(C`EV_SELECT_USE_FD_SET\*(C'\fR, \f(CW\*(C`EV_SELECT_IS_WINSOCKET\*(C'\fR and
-\&\f(CW\*(C`EV_FD_TO_WIN32_HANDLE\*(C'\fR preprocessor symbols for more info.
-.PP
-The configuration for a \*(L"naked\*(R" win32 using the Microsoft runtime
-libraries and raw winsocket select is:
-.PP
-.Vb 2
-\&   #define EV_USE_SELECT 1
-\&   #define EV_SELECT_IS_WINSOCKET 1   /* forces EV_SELECT_USE_FD_SET, too */
-.Ve
-.PP
-Note that winsockets handling of fd sets is O(n), so you can easily get a
-complexity in the O(nA\*^X) range when using win32.
-.PP
-\fILimited number of file descriptors\fR
-.IX Subsection "Limited number of file descriptors"
-.PP
-Windows has numerous arbitrary (and low) limits on things.
-.PP
-Early versions of winsocket's select only supported waiting for a maximum
-of \f(CW64\fR handles (probably owning to the fact that all windows kernels
-can only wait for \f(CW64\fR things at the same time internally; Microsoft
-recommends spawning a chain of threads and wait for 63 handles and the
-previous thread in each. Sounds great!).
-.PP
-Newer versions support more handles, but you need to define \f(CW\*(C`FD_SETSIZE\*(C'\fR
-to some high number (e.g. \f(CW2048\fR) before compiling the winsocket select
-call (which might be in libev or elsewhere, for example, perl and many
-other interpreters do their own select emulation on windows).
-.PP
-Another limit is the number of file descriptors in the Microsoft runtime
-libraries, which by default is \f(CW64\fR (there must be a hidden \fI64\fR
-fetish or something like this inside Microsoft). You can increase this
-by calling \f(CW\*(C`_setmaxstdio\*(C'\fR, which can increase this limit to \f(CW2048\fR
-(another arbitrary limit), but is broken in many versions of the Microsoft
-runtime libraries. This might get you to about \f(CW512\fR or \f(CW2048\fR sockets
-(depending on windows version and/or the phase of the moon). To get more,
-you need to wrap all I/O functions and provide your own fd management, but
-the cost of calling select (O(nA\*^X)) will likely make this unworkable.
-.SS "\s-1PORTABILITY\s0 \s-1REQUIREMENTS\s0"
-.IX Subsection "PORTABILITY REQUIREMENTS"
-In addition to a working ISO-C implementation and of course the
-backend-specific APIs, libev relies on a few additional extensions:
-.ie n .IP """void (*)(ev_watcher_type *, int revents)"" must have compatible calling conventions regardless of ""ev_watcher_type *""." 4
-.el .IP "\f(CWvoid (*)(ev_watcher_type *, int revents)\fR must have compatible calling conventions regardless of \f(CWev_watcher_type *\fR." 4
-.IX Item "void (*)(ev_watcher_type *, int revents) must have compatible calling conventions regardless of ev_watcher_type *."
-Libev assumes not only that all watcher pointers have the same internal
-structure (guaranteed by \s-1POSIX\s0 but not by \s-1ISO\s0 C for example), but it also
-assumes that the same (machine) code can be used to call any watcher
-callback: The watcher callbacks have different type signatures, but libev
-calls them using an \f(CW\*(C`ev_watcher *\*(C'\fR internally.
-.IP "pointer accesses must be thread-atomic" 4
-.IX Item "pointer accesses must be thread-atomic"
-Accessing a pointer value must be atomic, it must both be readable and
-writable in one piece \- this is the case on all current architectures.
-.ie n .IP """sig_atomic_t volatile"" must be thread-atomic as well" 4
-.el .IP "\f(CWsig_atomic_t volatile\fR must be thread-atomic as well" 4
-.IX Item "sig_atomic_t volatile must be thread-atomic as well"
-The type \f(CW\*(C`sig_atomic_t volatile\*(C'\fR (or whatever is defined as
-\&\f(CW\*(C`EV_ATOMIC_T\*(C'\fR) must be atomic with respect to accesses from different
-threads. This is not part of the specification for \f(CW\*(C`sig_atomic_t\*(C'\fR, but is
-believed to be sufficiently portable.
-.ie n .IP """sigprocmask"" must work in a threaded environment" 4
-.el .IP "\f(CWsigprocmask\fR must work in a threaded environment" 4
-.IX Item "sigprocmask must work in a threaded environment"
-Libev uses \f(CW\*(C`sigprocmask\*(C'\fR to temporarily block signals. This is not
-allowed in a threaded program (\f(CW\*(C`pthread_sigmask\*(C'\fR has to be used). Typical
-pthread implementations will either allow \f(CW\*(C`sigprocmask\*(C'\fR in the \*(L"main
-thread\*(R" or will block signals process-wide, both behaviours would
-be compatible with libev. Interaction between \f(CW\*(C`sigprocmask\*(C'\fR and
-\&\f(CW\*(C`pthread_sigmask\*(C'\fR could complicate things, however.
-.Sp
-The most portable way to handle signals is to block signals in all threads
-except the initial one, and run the default loop in the initial thread as
-well.
-.ie n .IP """long"" must be large enough for common memory allocation sizes" 4
-.el .IP "\f(CWlong\fR must be large enough for common memory allocation sizes" 4
-.IX Item "long must be large enough for common memory allocation sizes"
-To improve portability and simplify its \s-1API\s0, libev uses \f(CW\*(C`long\*(C'\fR internally
-instead of \f(CW\*(C`size_t\*(C'\fR when allocating its data structures. On non-POSIX
-systems (Microsoft...) this might be unexpectedly low, but is still at
-least 31 bits everywhere, which is enough for hundreds of millions of
-watchers.
-.ie n .IP """double"" must hold a time value in seconds with enough accuracy" 4
-.el .IP "\f(CWdouble\fR must hold a time value in seconds with enough accuracy" 4
-.IX Item "double must hold a time value in seconds with enough accuracy"
-The type \f(CW\*(C`double\*(C'\fR is used to represent timestamps. It is required to
-have at least 51 bits of mantissa (and 9 bits of exponent), which is
-good enough for at least into the year 4000 with millisecond accuracy
-(the design goal for libev). This requirement is overfulfilled by
-implementations using \s-1IEEE\s0 754, which is basically all existing ones. With
-\&\s-1IEEE\s0 754 doubles, you get microsecond accuracy until at least 2200.
-.PP
-If you know of other additional requirements drop me a note.
-.SH "ALGORITHMIC COMPLEXITIES"
-.IX Header "ALGORITHMIC COMPLEXITIES"
-In this section the complexities of (many of) the algorithms used inside
-libev will be documented. For complexity discussions about backends see
-the documentation for \f(CW\*(C`ev_default_init\*(C'\fR.
-.PP
-All of the following are about amortised time: If an array needs to be
-extended, libev needs to realloc and move the whole array, but this
-happens asymptotically rarer with higher number of elements, so O(1) might
-mean that libev does a lengthy realloc operation in rare cases, but on
-average it is much faster and asymptotically approaches constant time.
-.IP "Starting and stopping timer/periodic watchers: O(log skipped_other_timers)" 4
-.IX Item "Starting and stopping timer/periodic watchers: O(log skipped_other_timers)"
-This means that, when you have a watcher that triggers in one hour and
-there are 100 watchers that would trigger before that, then inserting will
-have to skip roughly seven (\f(CW\*(C`ld 100\*(C'\fR) of these watchers.
-.IP "Changing timer/periodic watchers (by autorepeat or calling again): O(log skipped_other_timers)" 4
-.IX Item "Changing timer/periodic watchers (by autorepeat or calling again): O(log skipped_other_timers)"
-That means that changing a timer costs less than removing/adding them,
-as only the relative motion in the event queue has to be paid for.
-.IP "Starting io/check/prepare/idle/signal/child/fork/async watchers: O(1)" 4
-.IX Item "Starting io/check/prepare/idle/signal/child/fork/async watchers: O(1)"
-These just add the watcher into an array or at the head of a list.
-.IP "Stopping check/prepare/idle/fork/async watchers: O(1)" 4
-.IX Item "Stopping check/prepare/idle/fork/async watchers: O(1)"
-.PD 0
-.IP "Stopping an io/signal/child watcher: O(number_of_watchers_for_this_(fd/signal/pid % \s-1EV_PID_HASHSIZE\s0))" 4
-.IX Item "Stopping an io/signal/child watcher: O(number_of_watchers_for_this_(fd/signal/pid % EV_PID_HASHSIZE))"
-.PD
-These watchers are stored in lists, so they need to be walked to find the
-correct watcher to remove. The lists are usually short (you don't usually
-have many watchers waiting for the same fd or signal: one is typical, two
-is rare).
-.IP "Finding the next timer in each loop iteration: O(1)" 4
-.IX Item "Finding the next timer in each loop iteration: O(1)"
-By virtue of using a binary or 4\-heap, the next timer is always found at a
-fixed position in the storage array.
-.IP "Each change on a file descriptor per loop iteration: O(number_of_watchers_for_this_fd)" 4
-.IX Item "Each change on a file descriptor per loop iteration: O(number_of_watchers_for_this_fd)"
-A change means an I/O watcher gets started or stopped, which requires
-libev to recalculate its status (and possibly tell the kernel, depending
-on backend and whether \f(CW\*(C`ev_io_set\*(C'\fR was used).
-.IP "Activating one watcher (putting it into the pending state): O(1)" 4
-.IX Item "Activating one watcher (putting it into the pending state): O(1)"
-.PD 0
-.IP "Priority handling: O(number_of_priorities)" 4
-.IX Item "Priority handling: O(number_of_priorities)"
-.PD
-Priorities are implemented by allocating some space for each
-priority. When doing priority-based operations, libev usually has to
-linearly search all the priorities, but starting/stopping and activating
-watchers becomes O(1) with respect to priority handling.
-.IP "Sending an ev_async: O(1)" 4
-.IX Item "Sending an ev_async: O(1)"
-.PD 0
-.IP "Processing ev_async_send: O(number_of_async_watchers)" 4
-.IX Item "Processing ev_async_send: O(number_of_async_watchers)"
-.IP "Processing signals: O(max_signal_number)" 4
-.IX Item "Processing signals: O(max_signal_number)"
-.PD
-Sending involves a system call \fIiff\fR there were no other \f(CW\*(C`ev_async_send\*(C'\fR
-calls in the current loop iteration. Checking for async and signal events
-involves iterating over all running async watchers or all signal numbers.
-.SH "PORTING FROM LIBEV 3.X TO 4.X"
-.IX Header "PORTING FROM LIBEV 3.X TO 4.X"
-The major version 4 introduced some incompatible changes to the \s-1API\s0.
-.PP
-At the moment, the \f(CW\*(C`ev.h\*(C'\fR header file provides compatibility definitions
-for all changes, so most programs should still compile. The compatibility
-layer might be removed in later versions of libev, so better update to the
-new \s-1API\s0 early than late.
-.ie n .IP """EV_COMPAT3"" backwards compatibility mechanism" 4
-.el .IP "\f(CWEV_COMPAT3\fR backwards compatibility mechanism" 4
-.IX Item "EV_COMPAT3 backwards compatibility mechanism"
-The backward compatibility mechanism can be controlled by
-\&\f(CW\*(C`EV_COMPAT3\*(C'\fR. See \*(L"\s-1MACROS\s0\*(R" in \s-1PREPROCESSOR\s0 \s-1SYMBOLS\s0 in the \s-1EMBEDDING\s0
-section.
-.ie n .IP """ev_default_destroy"" and ""ev_default_fork"" have been removed" 4
-.el .IP "\f(CWev_default_destroy\fR and \f(CWev_default_fork\fR have been removed" 4
-.IX Item "ev_default_destroy and ev_default_fork have been removed"
-These calls can be replaced easily by their \f(CW\*(C`ev_loop_xxx\*(C'\fR counterparts:
-.Sp
-.Vb 2
-\&   ev_loop_destroy (EV_DEFAULT_UC);
-\&   ev_loop_fork (EV_DEFAULT);
-.Ve
-.IP "function/symbol renames" 4
-.IX Item "function/symbol renames"
-A number of functions and symbols have been renamed:
-.Sp
-.Vb 3
-\&  ev_loop         => ev_run
-\&  EVLOOP_NONBLOCK => EVRUN_NOWAIT
-\&  EVLOOP_ONESHOT  => EVRUN_ONCE
-\&
-\&  ev_unloop       => ev_break
-\&  EVUNLOOP_CANCEL => EVBREAK_CANCEL
-\&  EVUNLOOP_ONE    => EVBREAK_ONE
-\&  EVUNLOOP_ALL    => EVBREAK_ALL
-\&
-\&  EV_TIMEOUT      => EV_TIMER
-\&
-\&  ev_loop_count   => ev_iteration
-\&  ev_loop_depth   => ev_depth
-\&  ev_loop_verify  => ev_verify
-.Ve
-.Sp
-Most functions working on \f(CW\*(C`struct ev_loop\*(C'\fR objects don't have an
-\&\f(CW\*(C`ev_loop_\*(C'\fR prefix, so it was removed; \f(CW\*(C`ev_loop\*(C'\fR, \f(CW\*(C`ev_unloop\*(C'\fR and
-associated constants have been renamed to not collide with the \f(CW\*(C`struct
-ev_loop\*(C'\fR anymore and \f(CW\*(C`EV_TIMER\*(C'\fR now follows the same naming scheme
-as all other watcher types. Note that \f(CW\*(C`ev_loop_fork\*(C'\fR is still called
-\&\f(CW\*(C`ev_loop_fork\*(C'\fR because it would otherwise clash with the \f(CW\*(C`ev_fork\*(C'\fR
-typedef.
-.ie n .IP """EV_MINIMAL"" mechanism replaced by ""EV_FEATURES""" 4
-.el .IP "\f(CWEV_MINIMAL\fR mechanism replaced by \f(CWEV_FEATURES\fR" 4
-.IX Item "EV_MINIMAL mechanism replaced by EV_FEATURES"
-The preprocessor symbol \f(CW\*(C`EV_MINIMAL\*(C'\fR has been replaced by a different
-mechanism, \f(CW\*(C`EV_FEATURES\*(C'\fR. Programs using \f(CW\*(C`EV_MINIMAL\*(C'\fR usually compile
-and work, but the library code will of course be larger.
-.SH "GLOSSARY"
-.IX Header "GLOSSARY"
-.IP "active" 4
-.IX Item "active"
-A watcher is active as long as it has been started and not yet stopped.
-See \*(L"\s-1WATCHER\s0 \s-1STATES\s0\*(R" for details.
-.IP "application" 4
-.IX Item "application"
-In this document, an application is whatever is using libev.
-.IP "backend" 4
-.IX Item "backend"
-The part of the code dealing with the operating system interfaces.
-.IP "callback" 4
-.IX Item "callback"
-The address of a function that is called when some event has been
-detected. Callbacks are being passed the event loop, the watcher that
-received the event, and the actual event bitset.
-.IP "callback/watcher invocation" 4
-.IX Item "callback/watcher invocation"
-The act of calling the callback associated with a watcher.
-.IP "event" 4
-.IX Item "event"
-A change of state of some external event, such as data now being available
-for reading on a file descriptor, time having passed or simply not having
-any other events happening anymore.
-.Sp
-In libev, events are represented as single bits (such as \f(CW\*(C`EV_READ\*(C'\fR or
-\&\f(CW\*(C`EV_TIMER\*(C'\fR).
-.IP "event library" 4
-.IX Item "event library"
-A software package implementing an event model and loop.
-.IP "event loop" 4
-.IX Item "event loop"
-An entity that handles and processes external events and converts them
-into callback invocations.
-.IP "event model" 4
-.IX Item "event model"
-The model used to describe how an event loop handles and processes
-watchers and events.
-.IP "pending" 4
-.IX Item "pending"
-A watcher is pending as soon as the corresponding event has been
-detected. See \*(L"\s-1WATCHER\s0 \s-1STATES\s0\*(R" for details.
-.IP "real time" 4
-.IX Item "real time"
-The physical time that is observed. It is apparently strictly monotonic :)
-.IP "wall-clock time" 4
-.IX Item "wall-clock time"
-The time and date as shown on clocks. Unlike real time, it can actually
-be wrong and jump forwards and backwards, e.g. when you adjust your
-clock.
-.IP "watcher" 4
-.IX Item "watcher"
-A data structure that describes interest in certain events. Watchers need
-to be started (attached to an event loop) before they can receive events.
-.SH "AUTHOR"
-.IX Header "AUTHOR"
-Marc Lehmann <libev@schmorp.de>, with repeated corrections by Mikael
-Magnusson and Emanuele Giaquinta, and minor corrections by many others.
diff --git a/deps/uv/src/unix/ev/ev.c b/deps/uv/src/unix/ev/ev.c
deleted file mode 100644
index d3dd759420..0000000000
--- a/deps/uv/src/unix/ev/ev.c
+++ /dev/null
@@ -1,3925 +0,0 @@
-/*
- * libev event processing core, watcher management
- *
- * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modifica-
- * tion, are permitted provided that the following conditions are met:
- *
- *   1.  Redistributions of source code must retain the above copyright notice,
- *       this list of conditions and the following disclaimer.
- *
- *   2.  Redistributions in binary form must reproduce the above copyright
- *       notice, this list of conditions and the following disclaimer in the
- *       documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
- * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
- * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
- * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Alternatively, the contents of this file may be used under the terms of
- * the GNU General Public License ("GPL") version 2 or any later version,
- * in which case the provisions of the GPL are applicable instead of
- * the above. If you wish to allow the use of your version of this file
- * only under the terms of the GPL and not to allow others to use your
- * version of this file under the BSD license, indicate your decision
- * by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL. If you do not delete the
- * provisions above, a recipient may use your version of this file under
- * either the BSD or the GPL.
- */
-
-/* this big block deduces configuration from config.h */
-#ifndef EV_STANDALONE
-# ifdef EV_CONFIG_H
-#  include EV_CONFIG_H
-# else
-#  include "config.h"
-# endif
-
-# if HAVE_CLOCK_SYSCALL
-#  ifndef EV_USE_CLOCK_SYSCALL
-#   define EV_USE_CLOCK_SYSCALL 1
-#   ifndef EV_USE_REALTIME
-#    define EV_USE_REALTIME  0
-#   endif
-#   ifndef EV_USE_MONOTONIC
-#    define EV_USE_MONOTONIC 1
-#   endif
-#  endif
-# elif !defined(EV_USE_CLOCK_SYSCALL)
-#  define EV_USE_CLOCK_SYSCALL 0
-# endif
-
-# if HAVE_CLOCK_GETTIME
-#  ifndef EV_USE_MONOTONIC
-#   define EV_USE_MONOTONIC 1
-#  endif
-#  ifndef EV_USE_REALTIME
-#   define EV_USE_REALTIME  0
-#  endif
-# else
-#  ifndef EV_USE_MONOTONIC
-#   define EV_USE_MONOTONIC 0
-#  endif
-#  ifndef EV_USE_REALTIME
-#   define EV_USE_REALTIME  0
-#  endif
-# endif
-
-# if HAVE_NANOSLEEP
-#  ifndef EV_USE_NANOSLEEP
-#    define EV_USE_NANOSLEEP EV_FEATURE_OS
-#  endif
-# else
-#   undef EV_USE_NANOSLEEP
-#   define EV_USE_NANOSLEEP 0
-# endif
-
-# if HAVE_SELECT && HAVE_SYS_SELECT_H
-#  ifndef EV_USE_SELECT
-#   define EV_USE_SELECT EV_FEATURE_BACKENDS
-#  endif
-# else
-#  undef EV_USE_SELECT
-#  define EV_USE_SELECT 0
-# endif
-
-# if HAVE_POLL && HAVE_POLL_H
-#  ifndef EV_USE_POLL
-#   define EV_USE_POLL EV_FEATURE_BACKENDS
-#  endif
-# else
-#  undef EV_USE_POLL
-#  define EV_USE_POLL 0
-# endif
-   
-# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
-#  ifndef EV_USE_EPOLL
-#   define EV_USE_EPOLL EV_FEATURE_BACKENDS
-#  endif
-# else
-#  undef EV_USE_EPOLL
-#  define EV_USE_EPOLL 0
-# endif
-   
-# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
-#  ifndef EV_USE_KQUEUE
-#   define EV_USE_KQUEUE EV_FEATURE_BACKENDS
-#  endif
-# else
-#  undef EV_USE_KQUEUE
-#  define EV_USE_KQUEUE 0
-# endif
-   
-# if HAVE_PORT_H && HAVE_PORT_CREATE
-#  ifndef EV_USE_PORT
-#   define EV_USE_PORT EV_FEATURE_BACKENDS
-#  endif
-# else
-#  undef EV_USE_PORT
-#  define EV_USE_PORT 0
-# endif
-
-# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
-#  ifndef EV_USE_INOTIFY
-#   define EV_USE_INOTIFY EV_FEATURE_OS
-#  endif
-# else
-#  undef EV_USE_INOTIFY
-#  define EV_USE_INOTIFY 0
-# endif
-
-# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
-#  ifndef EV_USE_SIGNALFD
-#   define EV_USE_SIGNALFD EV_FEATURE_OS
-#  endif
-# else
-#  undef EV_USE_SIGNALFD
-#  define EV_USE_SIGNALFD 0
-# endif
-
-# if HAVE_EVENTFD
-#  ifndef EV_USE_EVENTFD
-#   define EV_USE_EVENTFD EV_FEATURE_OS
-#  endif
-# else
-#  undef EV_USE_EVENTFD
-#  define EV_USE_EVENTFD 0
-# endif
- 
-#endif
-
-#include <math.h>
-#include <stdlib.h>
-#include <string.h>
-#include <fcntl.h>
-#include <stddef.h>
-
-#include <stdio.h>
-
-#include <assert.h>
-#include <errno.h>
-#include <sys/types.h>
-#include <time.h>
-#include <limits.h>
-
-#include <signal.h>
-
-#ifdef EV_H
-# include EV_H
-#else
-# include "ev.h"
-#endif
-
-EV_CPP(extern "C" {)
-
-#ifndef _WIN32
-# include <sys/time.h>
-# include <sys/wait.h>
-# include <unistd.h>
-#else
-# include <io.h>
-# define WIN32_LEAN_AND_MEAN
-# include <windows.h>
-# ifndef EV_SELECT_IS_WINSOCKET
-#  define EV_SELECT_IS_WINSOCKET 1
-# endif
-# undef EV_AVOID_STDIO
-#endif
-
-/* OS X, in its infinite idiocy, actually HARDCODES
- * a limit of 1024 into their select. Where people have brains,
- * OS X engineers apparently have a vacuum. Or maybe they were
- * ordered to have a vacuum, or they do anything for money.
- * This might help. Or not.
- */
-#define _DARWIN_UNLIMITED_SELECT 1
-
-/* this block tries to deduce configuration from header-defined symbols and defaults */
-
-/* try to deduce the maximum number of signals on this platform */
-#if defined (EV_NSIG)
-/* use what's provided */
-#elif defined (NSIG)
-# define EV_NSIG (NSIG)
-#elif defined(_NSIG)
-# define EV_NSIG (_NSIG)
-#elif defined (SIGMAX)
-# define EV_NSIG (SIGMAX+1)
-#elif defined (SIG_MAX)
-# define EV_NSIG (SIG_MAX+1)
-#elif defined (_SIG_MAX)
-# define EV_NSIG (_SIG_MAX+1)
-#elif defined (MAXSIG)
-# define EV_NSIG (MAXSIG+1)
-#elif defined (MAX_SIG)
-# define EV_NSIG (MAX_SIG+1)
-#elif defined (SIGARRAYSIZE)
-# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
-#elif defined (_sys_nsig)
-# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
-#else
-# error "unable to find value for NSIG, please report"
-/* to make it compile regardless, just remove the above line, */
-/* but consider reporting it, too! :) */
-# define EV_NSIG 65
-#endif
-
-#ifndef EV_USE_CLOCK_SYSCALL
-# if __linux && __GLIBC__ >= 2
-#  define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
-# else
-#  define EV_USE_CLOCK_SYSCALL 0
-# endif
-#endif
-
-#ifndef EV_USE_MONOTONIC
-# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
-#  define EV_USE_MONOTONIC EV_FEATURE_OS
-# else
-#  define EV_USE_MONOTONIC 0
-# endif
-#endif
-
-#ifndef EV_USE_REALTIME
-# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
-#endif
-
-#ifndef EV_USE_NANOSLEEP
-# if _POSIX_C_SOURCE >= 199309L
-#  define EV_USE_NANOSLEEP EV_FEATURE_OS
-# else
-#  define EV_USE_NANOSLEEP 0
-# endif
-#endif
-
-#ifndef EV_USE_SELECT
-# define EV_USE_SELECT EV_FEATURE_BACKENDS
-#endif
-
-#ifndef EV_USE_POLL
-# ifdef _WIN32
-#  define EV_USE_POLL 0
-# else
-#  define EV_USE_POLL EV_FEATURE_BACKENDS
-# endif
-#endif
-
-#ifndef EV_USE_EPOLL
-# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
-#  define EV_USE_EPOLL EV_FEATURE_BACKENDS
-# else
-#  define EV_USE_EPOLL 0
-# endif
-#endif
-
-#ifndef EV_USE_KQUEUE
-# define EV_USE_KQUEUE 0
-#endif
-
-#ifndef EV_USE_PORT
-# define EV_USE_PORT 0
-#endif
-
-#ifndef EV_USE_INOTIFY
-# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
-#  define EV_USE_INOTIFY EV_FEATURE_OS
-# else
-#  define EV_USE_INOTIFY 0
-# endif
-#endif
-
-#ifndef EV_PID_HASHSIZE
-# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
-#endif
-
-#ifndef EV_INOTIFY_HASHSIZE
-# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
-#endif
-
-#ifndef EV_USE_EVENTFD
-# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
-#  define EV_USE_EVENTFD EV_FEATURE_OS
-# else
-#  define EV_USE_EVENTFD 0
-# endif
-#endif
-
-#ifndef EV_USE_SIGNALFD
-# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
-#  define EV_USE_SIGNALFD EV_FEATURE_OS
-# else
-#  define EV_USE_SIGNALFD 0
-# endif
-#endif
-
-#if 0 /* debugging */
-# define EV_VERIFY 3
-# define EV_USE_4HEAP 1
-# define EV_HEAP_CACHE_AT 1
-#endif
-
-#ifndef EV_VERIFY
-# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
-#endif
-
-#ifndef EV_USE_4HEAP
-# define EV_USE_4HEAP EV_FEATURE_DATA
-#endif
-
-#ifndef EV_HEAP_CACHE_AT
-# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
-#endif
-
-/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
-/* which makes programs even slower. might work on other unices, too. */
-#if EV_USE_CLOCK_SYSCALL
-# include <syscall.h>
-# ifdef SYS_clock_gettime
-#  define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
-#  undef EV_USE_MONOTONIC
-#  define EV_USE_MONOTONIC 1
-# else
-#  undef EV_USE_CLOCK_SYSCALL
-#  define EV_USE_CLOCK_SYSCALL 0
-# endif
-#endif
-
-/* this block fixes any misconfiguration where we know we run into trouble otherwise */
-
-#ifdef _AIX
-/* AIX has a completely broken poll.h header */
-# undef EV_USE_POLL
-# define EV_USE_POLL 0
-#endif
-
-#ifndef CLOCK_MONOTONIC
-# undef EV_USE_MONOTONIC
-# define EV_USE_MONOTONIC 0
-#endif
-
-#ifndef CLOCK_REALTIME
-# undef EV_USE_REALTIME
-# define EV_USE_REALTIME 0
-#endif
-
-#if !EV_STAT_ENABLE
-# undef EV_USE_INOTIFY
-# define EV_USE_INOTIFY 0
-#endif
-
-#if !EV_USE_NANOSLEEP
-/* hp-ux has it in sys/time.h, which we unconditionally include above */
-# if !defined(_WIN32) && !defined(__hpux)
-#  include <sys/select.h>
-# endif
-#endif
-
-#if EV_USE_INOTIFY
-# include <sys/statfs.h>
-# include <sys/inotify.h>
-/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
-# ifndef IN_DONT_FOLLOW
-#  undef EV_USE_INOTIFY
-#  define EV_USE_INOTIFY 0
-# endif
-#endif
-
-#if EV_SELECT_IS_WINSOCKET
-# include <winsock.h>
-#endif
-
-#if EV_USE_EVENTFD
-/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
-# include <stdint.h>
-# ifndef EFD_NONBLOCK
-#  define EFD_NONBLOCK O_NONBLOCK
-# endif
-# ifndef EFD_CLOEXEC
-#  ifdef O_CLOEXEC
-#   define EFD_CLOEXEC O_CLOEXEC
-#  else
-#   define EFD_CLOEXEC 02000000
-#  endif
-# endif
-EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
-#endif
-
-#if EV_USE_SIGNALFD
-/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
-# include <stdint.h>
-# ifndef SFD_NONBLOCK
-#  define SFD_NONBLOCK O_NONBLOCK
-# endif
-# ifndef SFD_CLOEXEC
-#  ifdef O_CLOEXEC
-#   define SFD_CLOEXEC O_CLOEXEC
-#  else
-#   define SFD_CLOEXEC 02000000
-#  endif
-# endif
-EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
-
-struct signalfd_siginfo
-{
-  uint32_t ssi_signo;
-  char pad[128 - sizeof (uint32_t)];
-};
-#endif
-
-/**/
-
-#if EV_VERIFY >= 3
-# define EV_FREQUENT_CHECK ev_verify (EV_A)
-#else
-# define EV_FREQUENT_CHECK do { } while (0)
-#endif
-
-/*
- * This is used to avoid floating point rounding problems.
- * It is added to ev_rt_now when scheduling periodics
- * to ensure progress, time-wise, even when rounding
- * errors are against us.
- * This value is good at least till the year 4000.
- * Better solutions welcome.
- */
-#define TIME_EPSILON  0.0001220703125 /* 1/8192 */
-
-#define MIN_TIMEJUMP  1. /* minimum timejump that gets detected (if monotonic clock available) */
-#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
-
-#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
-#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
-
-#if __GNUC__ >= 4
-# define expect(expr,value)         __builtin_expect ((expr),(value))
-# define noinline                   __attribute__ ((noinline))
-#else
-# define expect(expr,value)         (expr)
-# define noinline
-# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
-#  define inline
-# endif
-#endif
-
-#define expect_false(expr) expect ((expr) != 0, 0)
-#define expect_true(expr)  expect ((expr) != 0, 1)
-#define inline_size        static inline
-
-#if EV_FEATURE_CODE
-# define inline_speed      static inline
-#else
-# define inline_speed      static noinline
-#endif
-
-#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
-
-#if EV_MINPRI == EV_MAXPRI
-# define ABSPRI(w) (((W)w), 0)
-#else
-# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
-#endif
-
-#define EMPTY       /* required for microsofts broken pseudo-c compiler */
-#define EMPTY2(a,b) /* used to suppress some warnings */
-
-typedef ev_watcher *W;
-typedef ev_watcher_list *WL;
-typedef ev_watcher_time *WT;
-
-#define ev_active(w) ((W)(w))->active
-#define ev_at(w) ((WT)(w))->at
-
-#if EV_USE_REALTIME
-/* sig_atomic_t is used to avoid per-thread variables or locking but still */
-/* giving it a reasonably high chance of working on typical architectures */
-static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
-#endif
-
-#if EV_USE_MONOTONIC
-static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
-#endif
-
-#ifndef EV_FD_TO_WIN32_HANDLE
-# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
-#endif
-#ifndef EV_WIN32_HANDLE_TO_FD
-# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
-#endif
-#ifndef EV_WIN32_CLOSE_FD
-# define EV_WIN32_CLOSE_FD(fd) close (fd)
-#endif
-
-#ifdef _WIN32
-# include "ev_win32.c"
-#endif
-
-/*****************************************************************************/
-
-#ifdef __linux
-# include <sys/utsname.h>
-#endif
-
-static unsigned int noinline
-ev_linux_version (void)
-{
-#ifdef __linux
-  unsigned int v = 0;
-  struct utsname buf;
-  int i;
-  char *p = buf.release;
-
-  if (uname (&buf))
-    return 0;
-
-  for (i = 3+1; --i; )
-    {
-      unsigned int c = 0;
-
-      for (;;)
-        {
-          if (*p >= '0' && *p <= '9')
-            c = c * 10 + *p++ - '0';
-          else
-            {
-              p += *p == '.';
-              break;
-            }
-        }
-
-      v = (v << 8) | c;
-    }
-
-  return v;
-#else
-  return 0;
-#endif
-}
-
-/*****************************************************************************/
-
-#if EV_AVOID_STDIO
-static void noinline
-ev_printerr (const char *msg)
-{
-  write (STDERR_FILENO, msg, strlen (msg));
-}
-#endif
-
-static void (*syserr_cb)(const char *msg);
-
-void
-ev_set_syserr_cb (void (*cb)(const char *msg))
-{
-  syserr_cb = cb;
-}
-
-static void noinline
-ev_syserr (const char *msg)
-{
-  if (!msg)
-    msg = "(libev) system error";
-
-  if (syserr_cb)
-    syserr_cb (msg);
-  else
-    {
-#if EV_AVOID_STDIO
-      ev_printerr (msg);
-      ev_printerr (": ");
-      ev_printerr (strerror (errno));
-      ev_printerr ("\n");
-#else
-      perror (msg);
-#endif
-      abort ();
-    }
-}
-
-static void *
-ev_realloc_emul (void *ptr, long size)
-{
-  /* some systems, notably openbsd and darwin, fail to properly
-   * implement realloc (x, 0) (as required by both ansi c-89 and
-   * the single unix specification, so work around them here.
-   */
-
-  if (size)
-    return realloc (ptr, size);
-
-  free (ptr);
-  return 0;
-}
-
-static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
-
-void
-ev_set_allocator (void *(*cb)(void *ptr, long size))
-{
-  alloc = cb;
-}
-
-inline_speed void *
-ev_realloc (void *ptr, long size)
-{
-  ptr = alloc (ptr, size);
-
-  if (!ptr && size)
-    {
-#if EV_AVOID_STDIO
-      ev_printerr ("(libev) memory allocation failed, aborting.\n");
-#else
-      fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
-#endif
-      abort ();
-    }
-
-  return ptr;
-}
-
-#define ev_malloc(size) ev_realloc (0, (size))
-#define ev_free(ptr)    ev_realloc ((ptr), 0)
-
-/*****************************************************************************/
-
-/* set in reify when reification needed */
-#define EV_ANFD_REIFY 1
-
-/* file descriptor info structure */
-typedef struct
-{
-  WL head;
-  unsigned char events; /* the events watched for */
-  unsigned char reify;  /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
-  unsigned char emask;  /* the epoll backend stores the actual kernel mask in here */
-  unsigned char unused;
-#if EV_USE_EPOLL
-  unsigned int egen;    /* generation counter to counter epoll bugs */
-#endif
-#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
-  SOCKET handle;
-#endif
-#if EV_USE_IOCP
-  OVERLAPPED or, ow;
-#endif
-} ANFD;
-
-/* stores the pending event set for a given watcher */
-typedef struct
-{
-  W w;
-  int events; /* the pending event set for the given watcher */
-} ANPENDING;
-
-#if EV_USE_INOTIFY
-/* hash table entry per inotify-id */
-typedef struct
-{
-  WL head;
-} ANFS;
-#endif
-
-/* Heap Entry */
-#if EV_HEAP_CACHE_AT
-  /* a heap element */
-  typedef struct {
-    ev_tstamp at;
-    WT w;
-  } ANHE;
-
-  #define ANHE_w(he)        (he).w     /* access watcher, read-write */
-  #define ANHE_at(he)       (he).at    /* access cached at, read-only */
-  #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
-#else
-  /* a heap element */
-  typedef WT ANHE;
-
-  #define ANHE_w(he)        (he)
-  #define ANHE_at(he)       (he)->at
-  #define ANHE_at_cache(he)
-#endif
-
-#if EV_MULTIPLICITY
-
-  struct ev_loop
-  {
-    ev_tstamp ev_rt_now;
-    #define ev_rt_now ((loop)->ev_rt_now)
-    #define VAR(name,decl) decl;
-      #include "ev_vars.h"
-    #undef VAR
-  };
-  #include "ev_wrap.h"
-
-  static struct ev_loop default_loop_struct;
-  struct ev_loop *ev_default_loop_ptr;
-
-#else
-
-  ev_tstamp ev_rt_now;
-  #define VAR(name,decl) static decl;
-    #include "ev_vars.h"
-  #undef VAR
-
-  static int ev_default_loop_ptr;
-
-#endif
-
-#if EV_FEATURE_API
-# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
-# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
-# define EV_INVOKE_PENDING invoke_cb (EV_A)
-#else
-# define EV_RELEASE_CB (void)0
-# define EV_ACQUIRE_CB (void)0
-# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
-#endif
-
-#define EVBREAK_RECURSE 0x80
-
-/*****************************************************************************/
-
-#ifndef EV_HAVE_EV_TIME
-ev_tstamp
-ev_time (void)
-{
-#if EV_USE_REALTIME
-  if (expect_true (have_realtime))
-    {
-      struct timespec ts;
-      clock_gettime (CLOCK_REALTIME, &ts);
-      return ts.tv_sec + ts.tv_nsec * 1e-9;
-    }
-#endif
-
-  struct timeval tv;
-  gettimeofday (&tv, 0);
-  return tv.tv_sec + tv.tv_usec * 1e-6;
-}
-#endif
-
-inline_size ev_tstamp
-get_clock (void)
-{
-#if EV_USE_MONOTONIC
-  if (expect_true (have_monotonic))
-    {
-      struct timespec ts;
-      clock_gettime (CLOCK_MONOTONIC, &ts);
-      return ts.tv_sec + ts.tv_nsec * 1e-9;
-    }
-#endif
-
-  return ev_time ();
-}
-
-#if EV_MULTIPLICITY
-ev_tstamp
-ev_now (EV_P)
-{
-  return ev_rt_now;
-}
-#endif
-
-void
-ev_sleep (ev_tstamp delay)
-{
-  if (delay > 0.)
-    {
-#if EV_USE_NANOSLEEP
-      struct timespec ts;
-
-      EV_TS_SET (ts, delay);
-      nanosleep (&ts, 0);
-#elif defined(_WIN32)
-      Sleep ((unsigned long)(delay * 1e3));
-#else
-      struct timeval tv;
-
-      /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
-      /* something not guaranteed by newer posix versions, but guaranteed */
-      /* by older ones */
-      EV_TV_SET (tv, delay);
-      select (0, 0, 0, 0, &tv);
-#endif
-    }
-}
-
-inline_speed int
-ev_timeout_to_ms (ev_tstamp timeout)
-{
-  int ms = timeout * 1000. + .999999;
-
-  return expect_true (ms) ? ms : timeout < 1e-6 ? 0 : 1;
-}
-
-/*****************************************************************************/
-
-#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
-
-/* find a suitable new size for the given array, */
-/* hopefully by rounding to a nice-to-malloc size */
-inline_size int
-array_nextsize (int elem, int cur, int cnt)
-{
-  int ncur = cur + 1;
-
-  do
-    ncur <<= 1;
-  while (cnt > ncur);
-
-  /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */
-  if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
-    {
-      ncur *= elem;
-      ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
-      ncur = ncur - sizeof (void *) * 4;
-      ncur /= elem;
-    }
-
-  return ncur;
-}
-
-static noinline void *
-array_realloc (int elem, void *base, int *cur, int cnt)
-{
-  *cur = array_nextsize (elem, *cur, cnt);
-  return ev_realloc (base, elem * *cur);
-}
-
-#define array_init_zero(base,count)	\
-  memset ((void *)(base), 0, sizeof (*(base)) * (count))
-
-#define array_needsize(type,base,cur,cnt,init)			\
-  if (expect_false ((cnt) > (cur)))				\
-    {								\
-      int ocur_ = (cur);					\
-      (base) = (type *)array_realloc				\
-         (sizeof (type), (base), &(cur), (cnt));		\
-      init ((base) + (ocur_), (cur) - ocur_);			\
-    }
-
-#if 0
-#define array_slim(type,stem)					\
-  if (stem ## max < array_roundsize (stem ## cnt >> 2))		\
-    {								\
-      stem ## max = array_roundsize (stem ## cnt >> 1);		\
-      base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
-      fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
-    }
-#endif
-
-#define array_free(stem, idx) \
-  ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
-
-/*****************************************************************************/
-
-/* dummy callback for pending events */
-static void noinline
-pendingcb (EV_P_ ev_prepare *w, int revents)
-{
-}
-
-void noinline
-ev_feed_event (EV_P_ void *w, int revents)
-{
-  W w_ = (W)w;
-  int pri = ABSPRI (w_);
-
-  if (expect_false (w_->pending))
-    pendings [pri][w_->pending - 1].events |= revents;
-  else
-    {
-      w_->pending = ++pendingcnt [pri];
-      array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
-      pendings [pri][w_->pending - 1].w      = w_;
-      pendings [pri][w_->pending - 1].events = revents;
-    }
-}
-
-inline_speed void
-feed_reverse (EV_P_ W w)
-{
-  array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2);
-  rfeeds [rfeedcnt++] = w;
-}
-
-inline_size void
-feed_reverse_done (EV_P_ int revents)
-{
-  do
-    ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents);
-  while (rfeedcnt);
-}
-
-inline_speed void
-queue_events (EV_P_ W *events, int eventcnt, int type)
-{
-  int i;
-
-  for (i = 0; i < eventcnt; ++i)
-    ev_feed_event (EV_A_ events [i], type);
-}
-
-/*****************************************************************************/
-
-inline_speed void
-fd_event_nocheck (EV_P_ int fd, int revents)
-{
-  ANFD *anfd = anfds + fd;
-  ev_io *w;
-
-  for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
-    {
-      int ev = w->events & revents;
-
-      if (ev)
-        ev_feed_event (EV_A_ (W)w, ev);
-    }
-}
-
-/* do not submit kernel events for fds that have reify set */
-/* because that means they changed while we were polling for new events */
-inline_speed void
-fd_event (EV_P_ int fd, int revents)
-{
-  ANFD *anfd = anfds + fd;
-
-  if (expect_true (!anfd->reify))
-    fd_event_nocheck (EV_A_ fd, revents);
-}
-
-void
-ev_feed_fd_event (EV_P_ int fd, int revents)
-{
-  if (fd >= 0 && fd < anfdmax)
-    fd_event_nocheck (EV_A_ fd, revents);
-}
-
-/* make sure the external fd watch events are in-sync */
-/* with the kernel/libev internal state */
-inline_size void
-fd_reify (EV_P)
-{
-  int i;
-
-#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
-  for (i = 0; i < fdchangecnt; ++i)
-    {
-      int fd = fdchanges [i];
-      ANFD *anfd = anfds + fd;
-
-      if (anfd->reify & EV__IOFDSET)
-        {
-          SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
-
-          if (handle != anfd->handle)
-            {
-              unsigned long arg;
-
-              assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
-
-              /* handle changed, but fd didn't - we need to do it in two steps */
-              backend_modify (EV_A_ fd, anfd->events, 0);
-              anfd->events = 0;
-              anfd->handle = handle;
-            }
-        }
-    }
-#endif
-
-  for (i = 0; i < fdchangecnt; ++i)
-    {
-      int fd = fdchanges [i];
-      ANFD *anfd = anfds + fd;
-      ev_io *w;
-
-      unsigned char o_events = anfd->events;
-      unsigned char o_reify  = anfd->reify;
-
-      anfd->reify  = 0;
-
-      /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
-        {
-          anfd->events = 0;
-
-          for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
-            anfd->events |= (unsigned char)w->events;
-
-          if (o_events != anfd->events)
-            o_reify = EV__IOFDSET; /* actually |= */
-        }
-
-      if (o_reify & EV__IOFDSET)
-        backend_modify (EV_A_ fd, o_events, anfd->events);
-    }
-
-  fdchangecnt = 0;
-}
-
-/* something about the given fd changed */
-inline_size void
-fd_change (EV_P_ int fd, int flags)
-{
-  unsigned char reify = anfds [fd].reify;
-  anfds [fd].reify |= flags;
-
-  if (expect_true (!reify))
-    {
-      ++fdchangecnt;
-      array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
-      fdchanges [fdchangecnt - 1] = fd;
-    }
-}
-
-/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
-inline_speed void
-fd_kill (EV_P_ int fd)
-{
-  ev_io *w;
-
-  while ((w = (ev_io *)anfds [fd].head))
-    {
-      ev_io_stop (EV_A_ w);
-      ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
-    }
-}
-
-/* check whether the given fd is actually valid, for error recovery */
-inline_size int
-fd_valid (int fd)
-{
-#ifdef _WIN32
-  return EV_FD_TO_WIN32_HANDLE (fd) != -1;
-#else
-  return fcntl (fd, F_GETFD) != -1;
-#endif
-}
-
-/* called on EBADF to verify fds */
-static void noinline
-fd_ebadf (EV_P)
-{
-  int fd;
-
-  for (fd = 0; fd < anfdmax; ++fd)
-    if (anfds [fd].events)
-      if (!fd_valid (fd) && errno == EBADF)
-        fd_kill (EV_A_ fd);
-}
-
-/* called on ENOMEM in select/poll to kill some fds and retry */
-static void noinline
-fd_enomem (EV_P)
-{
-  int fd;
-
-  for (fd = anfdmax; fd--; )
-    if (anfds [fd].events)
-      {
-        fd_kill (EV_A_ fd);
-        break;
-      }
-}
-
-/* usually called after fork if backend needs to re-arm all fds from scratch */
-static void noinline
-fd_rearm_all (EV_P)
-{
-  int fd;
-
-  for (fd = 0; fd < anfdmax; ++fd)
-    if (anfds [fd].events)
-      {
-        anfds [fd].events = 0;
-        anfds [fd].emask  = 0;
-        fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
-      }
-}
-
-/* used to prepare libev internal fd's */
-/* this is not fork-safe */
-inline_speed void
-fd_intern (int fd)
-{
-#ifdef _WIN32
-  unsigned long arg = 1;
-  ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
-#else
-  fcntl (fd, F_SETFD, FD_CLOEXEC);
-  fcntl (fd, F_SETFL, O_NONBLOCK);
-#endif
-}
-
-/*****************************************************************************/
-
-/*
- * the heap functions want a real array index. array index 0 is guaranteed to not
- * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
- * the branching factor of the d-tree.
- */
-
-/*
- * at the moment we allow libev the luxury of two heaps,
- * a small-code-size 2-heap one and a ~1.5kb larger 4-heap
- * which is more cache-efficient.
- * the difference is about 5% with 50000+ watchers.
- */
-#if EV_USE_4HEAP
-
-#define DHEAP 4
-#define HEAP0 (DHEAP - 1) /* index of first element in heap */
-#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
-#define UPHEAP_DONE(p,k) ((p) == (k))
-
-/* away from the root */
-inline_speed void
-downheap (ANHE *heap, int N, int k)
-{
-  ANHE he = heap [k];
-  ANHE *E = heap + N + HEAP0;
-
-  for (;;)
-    {
-      ev_tstamp minat;
-      ANHE *minpos;
-      ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
-
-      /* find minimum child */
-      if (expect_true (pos + DHEAP - 1 < E))
-        {
-          /* fast path */                               (minpos = pos + 0), (minat = ANHE_at (*minpos));
-          if (               ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
-          if (               ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
-          if (               ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
-        }
-      else if (pos < E)
-        {
-          /* slow path */                               (minpos = pos + 0), (minat = ANHE_at (*minpos));
-          if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
-          if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
-          if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
-        }
-      else
-        break;
-
-      if (ANHE_at (he) <= minat)
-        break;
-
-      heap [k] = *minpos;
-      ev_active (ANHE_w (*minpos)) = k;
-
-      k = minpos - heap;
-    }
-
-  heap [k] = he;
-  ev_active (ANHE_w (he)) = k;
-}
-
-#else /* 4HEAP */
-
-#define HEAP0 1
-#define HPARENT(k) ((k) >> 1)
-#define UPHEAP_DONE(p,k) (!(p))
-
-/* away from the root */
-inline_speed void
-downheap (ANHE *heap, int N, int k)
-{
-  ANHE he = heap [k];
-
-  for (;;)
-    {
-      int c = k << 1;
-
-      if (c >= N + HEAP0)
-        break;
-
-      c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
-           ? 1 : 0;
-
-      if (ANHE_at (he) <= ANHE_at (heap [c]))
-        break;
-
-      heap [k] = heap [c];
-      ev_active (ANHE_w (heap [k])) = k;
-      
-      k = c;
-    }
-
-  heap [k] = he;
-  ev_active (ANHE_w (he)) = k;
-}
-#endif
-
-/* towards the root */
-inline_speed void
-upheap (ANHE *heap, int k)
-{
-  ANHE he = heap [k];
-
-  for (;;)
-    {
-      int p = HPARENT (k);
-
-      if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he))
-        break;
-
-      heap [k] = heap [p];
-      ev_active (ANHE_w (heap [k])) = k;
-      k = p;
-    }
-
-  heap [k] = he;
-  ev_active (ANHE_w (he)) = k;
-}
-
-/* move an element suitably so it is in a correct place */
-inline_size void
-adjustheap (ANHE *heap, int N, int k)
-{
-  if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
-    upheap (heap, k);
-  else
-    downheap (heap, N, k);
-}
-
-/* rebuild the heap: this function is used only once and executed rarely */
-inline_size void
-reheap (ANHE *heap, int N)
-{
-  int i;
-
-  /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
-  /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */
-  for (i = 0; i < N; ++i)
-    upheap (heap, i + HEAP0);
-}
-
-/*****************************************************************************/
-
-/* associate signal watchers to a signal signal */
-typedef struct
-{
-  EV_ATOMIC_T pending;
-#if EV_MULTIPLICITY
-  EV_P;
-#endif
-  WL head;
-} ANSIG;
-
-static ANSIG signals [EV_NSIG - 1];
-
-/*****************************************************************************/
-
-#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
-
-static void noinline
-evpipe_init (EV_P)
-{
-  if (!ev_is_active (&pipe_w))
-    {
-# if EV_USE_EVENTFD
-      evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
-      if (evfd < 0 && errno == EINVAL)
-        evfd = eventfd (0, 0);
-
-      if (evfd >= 0)
-        {
-          evpipe [0] = -1;
-          fd_intern (evfd); /* doing it twice doesn't hurt */
-          ev_io_set (&pipe_w, evfd, EV_READ);
-        }
-      else
-# endif
-        {
-          while (pipe (evpipe))
-            ev_syserr ("(libev) error creating signal/async pipe");
-
-          fd_intern (evpipe [0]);
-          fd_intern (evpipe [1]);
-          ev_io_set (&pipe_w, evpipe [0], EV_READ);
-        }
-
-      ev_io_start (EV_A_ &pipe_w);
-      ev_unref (EV_A); /* watcher should not keep loop alive */
-    }
-}
-
-inline_size void
-evpipe_write (EV_P_ EV_ATOMIC_T *flag)
-{
-  if (!*flag)
-    {
-      int old_errno = errno; /* save errno because write might clobber it */
-      char dummy;
-
-      *flag = 1;
-
-#if EV_USE_EVENTFD
-      if (evfd >= 0)
-        {
-          uint64_t counter = 1;
-          write (evfd, &counter, sizeof (uint64_t));
-        }
-      else
-#endif
-        /* win32 people keep sending patches that change this write() to send() */
-        /* and then run away. but send() is wrong, it wants a socket handle on win32 */
-        /* so when you think this write should be a send instead, please find out */
-        /* where your send() is from - it's definitely not the microsoft send, and */
-        /* tell me. thank you. */
-        write (evpipe [1], &dummy, 1);
-
-      errno = old_errno;
-    }
-}
-
-/* called whenever the libev signal pipe */
-/* got some events (signal, async) */
-static void
-pipecb (EV_P_ ev_io *iow, int revents)
-{
-  int i;
-
-#if EV_USE_EVENTFD
-  if (evfd >= 0)
-    {
-      uint64_t counter;
-      read (evfd, &counter, sizeof (uint64_t));
-    }
-  else
-#endif
-    {
-      char dummy;
-      /* see discussion in evpipe_write when you think this read should be recv in win32 */
-      read (evpipe [0], &dummy, 1);
-    }
-
-#if EV_SIGNAL_ENABLE
-  if (sig_pending)
-    {
-      sig_pending = 0;
-
-      for (i = EV_NSIG - 1; i--; )
-        if (expect_false (signals [i].pending))
-          ev_feed_signal_event (EV_A_ i + 1);
-    }
-#endif
-
-#if EV_ASYNC_ENABLE
-  if (async_pending)
-    {
-      async_pending = 0;
-
-      for (i = asynccnt; i--; )
-        if (asyncs [i]->sent)
-          {
-            asyncs [i]->sent = 0;
-            ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
-          }
-    }
-#endif
-}
-
-/*****************************************************************************/
-
-void
-ev_feed_signal (int signum)
-{
-#if EV_MULTIPLICITY
-  EV_P = signals [signum - 1].loop;
-
-  if (!EV_A)
-    return;
-#endif
-
-  signals [signum - 1].pending = 1;
-  evpipe_write (EV_A_ &sig_pending);
-}
-
-static void
-ev_sighandler (int signum)
-{
-#ifdef _WIN32
-  signal (signum, ev_sighandler);
-#endif
-
-  ev_feed_signal (signum);
-}
-
-void noinline
-ev_feed_signal_event (EV_P_ int signum)
-{
-  WL w;
-
-  if (expect_false (signum <= 0 || signum > EV_NSIG))
-    return;
-
-  --signum;
-
-#if EV_MULTIPLICITY
-  /* it is permissible to try to feed a signal to the wrong loop */
-  /* or, likely more useful, feeding a signal nobody is waiting for */
-
-  if (expect_false (signals [signum].loop != EV_A))
-    return;
-#endif
-
-  signals [signum].pending = 0;
-
-  for (w = signals [signum].head; w; w = w->next)
-    ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
-}
-
-#if EV_USE_SIGNALFD
-static void
-sigfdcb (EV_P_ ev_io *iow, int revents)
-{
-  struct signalfd_siginfo si[2], *sip; /* these structs are big */
-
-  for (;;)
-    {
-      ssize_t res = read (sigfd, si, sizeof (si));
-
-      /* not ISO-C, as res might be -1, but works with SuS */
-      for (sip = si; (char *)sip < (char *)si + res; ++sip)
-        ev_feed_signal_event (EV_A_ sip->ssi_signo);
-
-      if (res < (ssize_t)sizeof (si))
-        break;
-    }
-}
-#endif
-
-#endif
-
-/*****************************************************************************/
-
-#if EV_CHILD_ENABLE
-static WL childs [EV_PID_HASHSIZE];
-
-static ev_signal childev;
-
-#ifndef WIFCONTINUED
-# define WIFCONTINUED(status) 0
-#endif
-
-/* handle a single child status event */
-inline_speed void
-child_reap (EV_P_ int chain, int pid, int status)
-{
-  ev_child *w;
-  int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
-
-  for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
-    {
-      if ((w->pid == pid || !w->pid)
-          && (!traced || (w->flags & 1)))
-        {
-          ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
-          w->rpid    = pid;
-          w->rstatus = status;
-          ev_feed_event (EV_A_ (W)w, EV_CHILD);
-        }
-    }
-}
-
-#ifndef WCONTINUED
-# define WCONTINUED 0
-#endif
-
-/* called on sigchld etc., calls waitpid */
-static void
-childcb (EV_P_ ev_signal *sw, int revents)
-{
-  int pid, status;
-
-  /* some systems define WCONTINUED but then fail to support it (linux 2.4) */
-  if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
-    if (!WCONTINUED
-        || errno != EINVAL
-        || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
-      return;
-
-  /* make sure we are called again until all children have been reaped */
-  /* we need to do it this way so that the callback gets called before we continue */
-  ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
-
-  child_reap (EV_A_ pid, pid, status);
-  if ((EV_PID_HASHSIZE) > 1)
-    child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
-}
-
-#endif
-
-/*****************************************************************************/
-
-#if EV_USE_IOCP
-# include "ev_iocp.c"
-#endif
-#if EV_USE_PORT
-# include "ev_port.c"
-#endif
-#if EV_USE_KQUEUE
-# include "ev_kqueue.c"
-#endif
-#if EV_USE_EPOLL
-# include "ev_epoll.c"
-#endif
-#if EV_USE_POLL
-# include "ev_poll.c"
-#endif
-#if EV_USE_SELECT
-# include "ev_select.c"
-#endif
-
-int
-ev_version_major (void)
-{
-  return EV_VERSION_MAJOR;
-}
-
-int
-ev_version_minor (void)
-{
-  return EV_VERSION_MINOR;
-}
-
-/* return true if we are running with elevated privileges and should ignore env variables */
-int inline_size
-enable_secure (void)
-{
-#ifdef _WIN32
-  return 0;
-#else
-  return getuid () != geteuid ()
-      || getgid () != getegid ();
-#endif
-}
-
-unsigned int
-ev_supported_backends (void)
-{
-  unsigned int flags = 0;
-
-  if (EV_USE_PORT  ) flags |= EVBACKEND_PORT;
-  if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
-  if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
-  if (EV_USE_POLL  ) flags |= EVBACKEND_POLL;
-  if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
-  
-  return flags;
-}
-
-unsigned int
-ev_recommended_backends (void)
-{
-  unsigned int flags = ev_supported_backends ();
-
-#ifndef __NetBSD__
-  /* kqueue is borked on everything but netbsd apparently */
-  /* it usually doesn't work correctly on anything but sockets and pipes */
-  flags &= ~EVBACKEND_KQUEUE;
-#endif
-#ifdef __APPLE__
-  /* only select works correctly on that "unix-certified" platform */
-  flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
-  flags &= ~EVBACKEND_POLL;   /* poll is based on kqueue from 10.5 onwards */
-#endif
-#ifdef __FreeBSD__
-  flags &= ~EVBACKEND_POLL;   /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
-#endif
-
-  return flags;
-}
-
-unsigned int
-ev_embeddable_backends (void)
-{
-  int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
-
-  /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
-  if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
-    flags &= ~EVBACKEND_EPOLL;
-
-  return flags;
-}
-
-unsigned int
-ev_backend (EV_P)
-{
-  return backend;
-}
-
-#if EV_FEATURE_API
-unsigned int
-ev_iteration (EV_P)
-{
-  return loop_count;
-}
-
-unsigned int
-ev_depth (EV_P)
-{
-  return loop_depth;
-}
-
-void
-ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
-{
-  io_blocktime = interval;
-}
-
-void
-ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
-{
-  timeout_blocktime = interval;
-}
-
-void
-ev_set_userdata (EV_P_ void *data)
-{
-  userdata = data;
-}
-
-void *
-ev_userdata (EV_P)
-{
-  return userdata;
-}
-
-void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
-{
-  invoke_cb = invoke_pending_cb;
-}
-
-void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
-{
-  release_cb = release;
-  acquire_cb = acquire;
-}
-#endif
-
-/* initialise a loop structure, must be zero-initialised */
-static void noinline
-loop_init (EV_P_ unsigned int flags)
-{
-  if (!backend)
-    {
-      origflags = flags;
-
-#if EV_USE_REALTIME
-      if (!have_realtime)
-        {
-          struct timespec ts;
-
-          if (!clock_gettime (CLOCK_REALTIME, &ts))
-            have_realtime = 1;
-        }
-#endif
-
-#if EV_USE_MONOTONIC
-      if (!have_monotonic)
-        {
-          struct timespec ts;
-
-          if (!clock_gettime (CLOCK_MONOTONIC, &ts))
-            have_monotonic = 1;
-        }
-#endif
-
-      /* pid check not overridable via env */
-#ifndef _WIN32
-      if (flags & EVFLAG_FORKCHECK)
-        curpid = getpid ();
-#endif
-
-      if (!(flags & EVFLAG_NOENV)
-          && !enable_secure ()
-          && getenv ("LIBEV_FLAGS"))
-        flags = atoi (getenv ("LIBEV_FLAGS"));
-
-      ev_rt_now         = ev_time ();
-      mn_now            = get_clock ();
-      now_floor         = mn_now;
-      rtmn_diff         = ev_rt_now - mn_now;
-#if EV_FEATURE_API
-      invoke_cb         = ev_invoke_pending;
-#endif
-
-      io_blocktime      = 0.;
-      timeout_blocktime = 0.;
-      backend           = 0;
-      backend_fd        = -1;
-      sig_pending       = 0;
-#if EV_ASYNC_ENABLE
-      async_pending     = 0;
-#endif
-#if EV_USE_INOTIFY
-      fs_fd             = flags & EVFLAG_NOINOTIFY ? -1 : -2;
-#endif
-#if EV_USE_SIGNALFD
-      sigfd             = flags & EVFLAG_SIGNALFD  ? -2 : -1;
-#endif
-
-      if (!(flags & EVBACKEND_MASK))
-        flags |= ev_recommended_backends ();
-
-#if EV_USE_IOCP
-      if (!backend && (flags & EVBACKEND_IOCP  )) backend = iocp_init   (EV_A_ flags);
-#endif
-#if EV_USE_PORT
-      if (!backend && (flags & EVBACKEND_PORT  )) backend = port_init   (EV_A_ flags);
-#endif
-#if EV_USE_KQUEUE
-      if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
-#endif
-#if EV_USE_EPOLL
-      if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init  (EV_A_ flags);
-#endif
-#if EV_USE_POLL
-      if (!backend && (flags & EVBACKEND_POLL  )) backend = poll_init   (EV_A_ flags);
-#endif
-#if EV_USE_SELECT
-      if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
-#endif
-
-      ev_prepare_init (&pending_w, pendingcb);
-
-#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
-      ev_init (&pipe_w, pipecb);
-      ev_set_priority (&pipe_w, EV_MAXPRI);
-#endif
-    }
-}
-
-/* free up a loop structure */
-void
-ev_loop_destroy (EV_P)
-{
-  int i;
-
-#if EV_MULTIPLICITY
-  /* mimic free (0) */
-  if (!EV_A)
-    return;
-#endif
-
-#if EV_CLEANUP_ENABLE
-  /* queue cleanup watchers (and execute them) */
-  if (expect_false (cleanupcnt))
-    {
-      queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
-      EV_INVOKE_PENDING;
-    }
-#endif
-
-#if EV_CHILD_ENABLE
-  if (ev_is_active (&childev))
-    {
-      ev_ref (EV_A); /* child watcher */
-      ev_signal_stop (EV_A_ &childev);
-    }
-#endif
-
-  if (ev_is_active (&pipe_w))
-    {
-      /*ev_ref (EV_A);*/
-      /*ev_io_stop (EV_A_ &pipe_w);*/
-
-#if EV_USE_EVENTFD
-      if (evfd >= 0)
-        close (evfd);
-#endif
-
-      if (evpipe [0] >= 0)
-        {
-          EV_WIN32_CLOSE_FD (evpipe [0]);
-          EV_WIN32_CLOSE_FD (evpipe [1]);
-        }
-    }
-
-#if EV_USE_SIGNALFD
-  if (ev_is_active (&sigfd_w))
-    close (sigfd);
-#endif
-
-#if EV_USE_INOTIFY
-  if (fs_fd >= 0)
-    close (fs_fd);
-#endif
-
-  if (backend_fd >= 0)
-    close (backend_fd);
-
-#if EV_USE_IOCP
-  if (backend == EVBACKEND_IOCP  ) iocp_destroy   (EV_A);
-#endif
-#if EV_USE_PORT
-  if (backend == EVBACKEND_PORT  ) port_destroy   (EV_A);
-#endif
-#if EV_USE_KQUEUE
-  if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
-#endif
-#if EV_USE_EPOLL
-  if (backend == EVBACKEND_EPOLL ) epoll_destroy  (EV_A);
-#endif
-#if EV_USE_POLL
-  if (backend == EVBACKEND_POLL  ) poll_destroy   (EV_A);
-#endif
-#if EV_USE_SELECT
-  if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
-#endif
-
-  for (i = NUMPRI; i--; )
-    {
-      array_free (pending, [i]);
-#if EV_IDLE_ENABLE
-      array_free (idle, [i]);
-#endif
-    }
-
-  ev_free (anfds); anfds = 0; anfdmax = 0;
-
-  /* have to use the microsoft-never-gets-it-right macro */
-  array_free (rfeed, EMPTY);
-  array_free (fdchange, EMPTY);
-  array_free (timer, EMPTY);
-#if EV_PERIODIC_ENABLE
-  array_free (periodic, EMPTY);
-#endif
-#if EV_FORK_ENABLE
-  array_free (fork, EMPTY);
-#endif
-#if EV_CLEANUP_ENABLE
-  array_free (cleanup, EMPTY);
-#endif
-  array_free (prepare, EMPTY);
-  array_free (check, EMPTY);
-#if EV_ASYNC_ENABLE
-  array_free (async, EMPTY);
-#endif
-
-  backend = 0;
-
-#if EV_MULTIPLICITY
-  if (ev_is_default_loop (EV_A))
-#endif
-    ev_default_loop_ptr = 0;
-#if EV_MULTIPLICITY
-  else
-    ev_free (EV_A);
-#endif
-}
-
-#if EV_USE_INOTIFY
-inline_size void infy_fork (EV_P);
-#endif
-
-inline_size void
-loop_fork (EV_P)
-{
-#if EV_USE_PORT
-  if (backend == EVBACKEND_PORT  ) port_fork   (EV_A);
-#endif
-#if EV_USE_KQUEUE
-  if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
-#endif
-#if EV_USE_EPOLL
-  if (backend == EVBACKEND_EPOLL ) epoll_fork  (EV_A);
-#endif
-#if EV_USE_INOTIFY
-  infy_fork (EV_A);
-#endif
-
-  if (ev_is_active (&pipe_w))
-    {
-      /* this "locks" the handlers against writing to the pipe */
-      /* while we modify the fd vars */
-      sig_pending   = 1;
-#if EV_ASYNC_ENABLE
-      async_pending = 1;
-#endif
-
-      ev_ref (EV_A);
-      ev_io_stop (EV_A_ &pipe_w);
-
-#if EV_USE_EVENTFD
-      if (evfd >= 0)
-        close (evfd);
-#endif
-
-      if (evpipe [0] >= 0)
-        {
-          EV_WIN32_CLOSE_FD (evpipe [0]);
-          EV_WIN32_CLOSE_FD (evpipe [1]);
-        }
-
-#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
-      evpipe_init (EV_A);
-      /* now iterate over everything, in case we missed something */
-      pipecb (EV_A_ &pipe_w, EV_READ);
-#endif
-    }
-
-  postfork = 0;
-}
-
-#if EV_MULTIPLICITY
-
-struct ev_loop *
-ev_loop_new (unsigned int flags)
-{
-  EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
-
-  memset (EV_A, 0, sizeof (struct ev_loop));
-  loop_init (EV_A_ flags);
-
-  if (ev_backend (EV_A))
-    return EV_A;
-
-  ev_free (EV_A);
-  return 0;
-}
-
-#endif /* multiplicity */
-
-int
-ev_loop_refcount (EV_P)
-{
-  return activecnt;
-}
-
-#if EV_VERIFY
-static void noinline
-verify_watcher (EV_P_ W w)
-{
-  assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
-
-  if (w->pending)
-    assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
-}
-
-static void noinline
-verify_heap (EV_P_ ANHE *heap, int N)
-{
-  int i;
-
-  for (i = HEAP0; i < N + HEAP0; ++i)
-    {
-      assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
-      assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
-      assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
-
-      verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
-    }
-}
-
-static void noinline
-array_verify (EV_P_ W *ws, int cnt)
-{
-  while (cnt--)
-    {
-      assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
-      verify_watcher (EV_A_ ws [cnt]);
-    }
-}
-#endif
-
-#if EV_FEATURE_API
-void
-ev_verify (EV_P)
-{
-#if EV_VERIFY
-  int i;
-  WL w;
-
-  assert (activecnt >= -1);
-
-  assert (fdchangemax >= fdchangecnt);
-  for (i = 0; i < fdchangecnt; ++i)
-    assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
-
-  assert (anfdmax >= 0);
-  for (i = 0; i < anfdmax; ++i)
-    for (w = anfds [i].head; w; w = w->next)
-      {
-        verify_watcher (EV_A_ (W)w);
-        assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
-        assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
-      }
-
-  assert (timermax >= timercnt);
-  verify_heap (EV_A_ timers, timercnt);
-
-#if EV_PERIODIC_ENABLE
-  assert (periodicmax >= periodiccnt);
-  verify_heap (EV_A_ periodics, periodiccnt);
-#endif
-
-  for (i = NUMPRI; i--; )
-    {
-      assert (pendingmax [i] >= pendingcnt [i]);
-#if EV_IDLE_ENABLE
-      assert (idleall >= 0);
-      assert (idlemax [i] >= idlecnt [i]);
-      array_verify (EV_A_ (W *)idles [i], idlecnt [i]);
-#endif
-    }
-
-#if EV_FORK_ENABLE
-  assert (forkmax >= forkcnt);
-  array_verify (EV_A_ (W *)forks, forkcnt);
-#endif
-
-#if EV_CLEANUP_ENABLE
-  assert (cleanupmax >= cleanupcnt);
-  array_verify (EV_A_ (W *)cleanups, cleanupcnt);
-#endif
-
-#if EV_ASYNC_ENABLE
-  assert (asyncmax >= asynccnt);
-  array_verify (EV_A_ (W *)asyncs, asynccnt);
-#endif
-
-#if EV_PREPARE_ENABLE
-  assert (preparemax >= preparecnt);
-  array_verify (EV_A_ (W *)prepares, preparecnt);
-#endif
-
-#if EV_CHECK_ENABLE
-  assert (checkmax >= checkcnt);
-  array_verify (EV_A_ (W *)checks, checkcnt);
-#endif
-
-# if 0
-#if EV_CHILD_ENABLE
-  for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
-  for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
-#endif
-# endif
-#endif
-}
-#endif
-
-#if EV_MULTIPLICITY
-struct ev_loop *
-#else
-int
-#endif
-ev_default_loop (unsigned int flags)
-{
-  if (!ev_default_loop_ptr)
-    {
-#if EV_MULTIPLICITY
-      EV_P = ev_default_loop_ptr = &default_loop_struct;
-#else
-      ev_default_loop_ptr = 1;
-#endif
-
-      loop_init (EV_A_ flags);
-
-      if (ev_backend (EV_A))
-        {
-#if EV_CHILD_ENABLE
-          ev_signal_init (&childev, childcb, SIGCHLD);
-          ev_set_priority (&childev, EV_MAXPRI);
-          ev_signal_start (EV_A_ &childev);
-          ev_unref (EV_A); /* child watcher should not keep loop alive */
-#endif
-        }
-      else
-        ev_default_loop_ptr = 0;
-    }
-
-  return ev_default_loop_ptr;
-}
-
-void
-ev_loop_fork (EV_P)
-{
-  postfork = 1; /* must be in line with ev_default_fork */
-}
-
-/*****************************************************************************/
-
-void
-ev_invoke (EV_P_ void *w, int revents)
-{
-  EV_CB_INVOKE ((W)w, revents);
-}
-
-unsigned int
-ev_pending_count (EV_P)
-{
-  int pri;
-  unsigned int count = 0;
-
-  for (pri = NUMPRI; pri--; )
-    count += pendingcnt [pri];
-
-  return count;
-}
-
-void noinline
-ev_invoke_pending (EV_P)
-{
-  int pri;
-
-  for (pri = NUMPRI; pri--; )
-    while (pendingcnt [pri])
-      {
-        ANPENDING *p = pendings [pri] + --pendingcnt [pri];
-
-        p->w->pending = 0;
-        EV_CB_INVOKE (p->w, p->events);
-        EV_FREQUENT_CHECK;
-      }
-}
-
-#if EV_IDLE_ENABLE
-/* make idle watchers pending. this handles the "call-idle */
-/* only when higher priorities are idle" logic */
-inline_size void
-idle_reify (EV_P)
-{
-  if (expect_false (idleall))
-    {
-      int pri;
-
-      for (pri = NUMPRI; pri--; )
-        {
-          if (pendingcnt [pri])
-            break;
-
-          if (idlecnt [pri])
-            {
-              queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
-              break;
-            }
-        }
-    }
-}
-#endif
-
-/* make timers pending */
-inline_size void
-timers_reify (EV_P)
-{
-  EV_FREQUENT_CHECK;
-
-  if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
-    {
-      do
-        {
-          ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
-
-          /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/
-
-          /* first reschedule or stop timer */
-          if (w->repeat)
-            {
-              ev_at (w) += w->repeat;
-              if (ev_at (w) < mn_now)
-                ev_at (w) = mn_now;
-
-              assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));
-
-              ANHE_at_cache (timers [HEAP0]);
-              downheap (timers, timercnt, HEAP0);
-            }
-          else
-            ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
-
-          EV_FREQUENT_CHECK;
-          feed_reverse (EV_A_ (W)w);
-        }
-      while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
-
-      feed_reverse_done (EV_A_ EV_TIMER);
-    }
-}
-
-#if EV_PERIODIC_ENABLE
-
-inline_speed void
-periodic_recalc (EV_P_ ev_periodic *w)
-{
-  /* TODO: use slow but potentially more correct incremental algo, */
-  /* also do not rely on ceil */
-  ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
-}
-
-/* make periodics pending */
-inline_size void
-periodics_reify (EV_P)
-{
-  EV_FREQUENT_CHECK;
-
-  while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
-    {
-      int feed_count = 0;
-
-      do
-        {
-          ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
-
-          /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
-
-          /* first reschedule or stop timer */
-          if (w->reschedule_cb)
-            {
-              ev_at (w) = w->reschedule_cb (w, ev_rt_now);
-
-              assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
-
-              ANHE_at_cache (periodics [HEAP0]);
-              downheap (periodics, periodiccnt, HEAP0);
-            }
-          else if (w->interval)
-            {
-              periodic_recalc (EV_A_ w);
-
-              /* if next trigger time is not sufficiently in the future, put it there */
-              /* this might happen because of floating point inexactness */
-              if (ev_at (w) - ev_rt_now < TIME_EPSILON)
-                {
-                  ev_at (w) += w->interval;
-
-                  /* if interval is unreasonably low we might still have a time in the past */
-                  /* so correct this. this will make the periodic very inexact, but the user */
-                  /* has effectively asked to get triggered more often than possible */
-                  if (ev_at (w) < ev_rt_now)
-                    ev_at (w) = ev_rt_now;
-                }
-
-              ANHE_at_cache (periodics [HEAP0]);
-              downheap (periodics, periodiccnt, HEAP0);
-            }
-          else
-            ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
-
-          EV_FREQUENT_CHECK;
-          feed_reverse (EV_A_ (W)w);
-        }
-      while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);
-
-      feed_reverse_done (EV_A_ EV_PERIODIC);
-    }
-}
-
-/* simply recalculate all periodics */
-/* TODO: maybe ensure that at least one event happens when jumping forward? */
-static void noinline
-periodics_reschedule (EV_P)
-{
-  int i;
-
-  /* adjust periodics after time jump */
-  for (i = HEAP0; i < periodiccnt + HEAP0; ++i)
-    {
-      ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
-
-      if (w->reschedule_cb)
-        ev_at (w) = w->reschedule_cb (w, ev_rt_now);
-      else if (w->interval)
-        periodic_recalc (EV_A_ w);
-
-      ANHE_at_cache (periodics [i]);
-    }
-
-  reheap (periodics, periodiccnt);
-}
-#endif
-
-/* adjust all timers by a given offset */
-static void noinline
-timers_reschedule (EV_P_ ev_tstamp adjust)
-{
-  int i;
-
-  for (i = 0; i < timercnt; ++i)
-    {
-      ANHE *he = timers + i + HEAP0;
-      ANHE_w (*he)->at += adjust;
-      ANHE_at_cache (*he);
-    }
-}
-
-/* fetch new monotonic and realtime times from the kernel */
-/* also detect if there was a timejump, and act accordingly */
-inline_speed void
-time_update (EV_P_ ev_tstamp max_block)
-{
-#if EV_USE_MONOTONIC
-  if (expect_true (have_monotonic))
-    {
-      int i;
-      ev_tstamp odiff = rtmn_diff;
-
-      mn_now = get_clock ();
-
-      /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
-      /* interpolate in the meantime */
-      if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
-        {
-          ev_rt_now = rtmn_diff + mn_now;
-          return;
-        }
-
-      now_floor = mn_now;
-      ev_rt_now = ev_time ();
-
-      /* loop a few times, before making important decisions.
-       * on the choice of "4": one iteration isn't enough,
-       * in case we get preempted during the calls to
-       * ev_time and get_clock. a second call is almost guaranteed
-       * to succeed in that case, though. and looping a few more times
-       * doesn't hurt either as we only do this on time-jumps or
-       * in the unlikely event of having been preempted here.
-       */
-      for (i = 4; --i; )
-        {
-          rtmn_diff = ev_rt_now - mn_now;
-
-          if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP))
-            return; /* all is well */
-
-          ev_rt_now = ev_time ();
-          mn_now    = get_clock ();
-          now_floor = mn_now;
-        }
-
-      /* no timer adjustment, as the monotonic clock doesn't jump */
-      /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
-# if EV_PERIODIC_ENABLE
-      periodics_reschedule (EV_A);
-# endif
-    }
-  else
-#endif
-    {
-      ev_rt_now = ev_time ();
-
-      if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
-        {
-          /* adjust timers. this is easy, as the offset is the same for all of them */
-          timers_reschedule (EV_A_ ev_rt_now - mn_now);
-#if EV_PERIODIC_ENABLE
-          periodics_reschedule (EV_A);
-#endif
-        }
-
-      mn_now = ev_rt_now;
-    }
-}
-
-void
-ev_run (EV_P_ int flags)
-{
-#if EV_FEATURE_API
-  ++loop_depth;
-#endif
-
-  assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
-
-  loop_done = EVBREAK_CANCEL;
-
-  EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
-
-  do
-    {
-#if EV_VERIFY >= 2
-      ev_verify (EV_A);
-#endif
-
-#ifndef _WIN32
-      if (expect_false (curpid)) /* penalise the forking check even more */
-        if (expect_false (getpid () != curpid))
-          {
-            curpid = getpid ();
-            postfork = 1;
-          }
-#endif
-
-#if EV_FORK_ENABLE
-      /* we might have forked, so queue fork handlers */
-      if (expect_false (postfork))
-        if (forkcnt)
-          {
-            queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
-            EV_INVOKE_PENDING;
-          }
-#endif
-
-#if EV_PREPARE_ENABLE
-      /* queue prepare watchers (and execute them) */
-      if (expect_false (preparecnt))
-        {
-          queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
-          EV_INVOKE_PENDING;
-        }
-#endif
-
-      if (expect_false (loop_done))
-        break;
-
-      /* we might have forked, so reify kernel state if necessary */
-      if (expect_false (postfork))
-        loop_fork (EV_A);
-
-      /* update fd-related kernel structures */
-      fd_reify (EV_A);
-
-      /* calculate blocking time */
-      {
-        ev_tstamp waittime  = 0.;
-        ev_tstamp sleeptime = 0.;
-
-        /* remember old timestamp for io_blocktime calculation */
-        ev_tstamp prev_mn_now = mn_now;
-
-        /* update time to cancel out callback processing overhead */
-        time_update (EV_A_ 1e100);
-
-        if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt)))
-          {
-            waittime = MAX_BLOCKTIME;
-
-            if (timercnt)
-              {
-                ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
-                if (waittime > to) waittime = to;
-              }
-
-#if EV_PERIODIC_ENABLE
-            if (periodiccnt)
-              {
-                ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
-                if (waittime > to) waittime = to;
-              }
-#endif
-
-            /* don't let timeouts decrease the waittime below timeout_blocktime */
-            if (expect_false (waittime < timeout_blocktime))
-              waittime = timeout_blocktime;
-
-            /* extra check because io_blocktime is commonly 0 */
-            if (expect_false (io_blocktime))
-              {
-                sleeptime = io_blocktime - (mn_now - prev_mn_now);
-
-                if (sleeptime > waittime - backend_fudge)
-                  sleeptime = waittime - backend_fudge;
-
-                if (expect_true (sleeptime > 0.))
-                  {
-                    ev_sleep (sleeptime);
-                    waittime -= sleeptime;
-                  }
-              }
-          }
-
-#if EV_FEATURE_API
-        ++loop_count;
-#endif
-        assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
-        backend_poll (EV_A_ waittime);
-        assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
-
-        /* update ev_rt_now, do magic */
-        time_update (EV_A_ waittime + sleeptime);
-      }
-
-      /* queue pending timers and reschedule them */
-      timers_reify (EV_A); /* relative timers called last */
-#if EV_PERIODIC_ENABLE
-      periodics_reify (EV_A); /* absolute timers called first */
-#endif
-
-#if EV_IDLE_ENABLE
-      /* queue idle watchers unless other events are pending */
-      idle_reify (EV_A);
-#endif
-
-#if EV_CHECK_ENABLE
-      /* queue check watchers, to be executed first */
-      if (expect_false (checkcnt))
-        queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
-#endif
-
-      EV_INVOKE_PENDING;
-    }
-  while (expect_true (
-    activecnt
-    && !loop_done
-    && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
-  ));
-
-  if (loop_done == EVBREAK_ONE)
-    loop_done = EVBREAK_CANCEL;
-
-#if EV_FEATURE_API
-  --loop_depth;
-#endif
-}
-
-/* libuv special */
-void
-ev__run (EV_P_ ev_tstamp waittime)
-{
-  fd_reify (EV_A);
-  backend_poll (EV_A_ waittime);
-}
-
-void
-ev_break (EV_P_ int how)
-{
-  loop_done = how;
-}
-
-void
-ev_ref (EV_P)
-{
-  ++activecnt;
-}
-
-void
-ev_unref (EV_P)
-{
-  --activecnt;
-  if (activecnt < 0) abort();
-}
-
-void
-ev_now_update (EV_P)
-{
-  time_update (EV_A_ 1e100);
-}
-
-void
-ev_suspend (EV_P)
-{
-  ev_now_update (EV_A);
-}
-
-void
-ev_resume (EV_P)
-{
-  ev_tstamp mn_prev = mn_now;
-
-  ev_now_update (EV_A);
-  timers_reschedule (EV_A_ mn_now - mn_prev);
-#if EV_PERIODIC_ENABLE
-  /* TODO: really do this? */
-  periodics_reschedule (EV_A);
-#endif
-}
-
-/*****************************************************************************/
-/* singly-linked list management, used when the expected list length is short */
-
-inline_size void
-wlist_add (WL *head, WL elem)
-{
-  elem->next = *head;
-  *head = elem;
-}
-
-inline_size void
-wlist_del (WL *head, WL elem)
-{
-  while (*head)
-    {
-      if (expect_true (*head == elem))
-        {
-          *head = elem->next;
-          break;
-        }
-
-      head = &(*head)->next;
-    }
-}
-
-/* internal, faster, version of ev_clear_pending */
-inline_speed void
-clear_pending (EV_P_ W w)
-{
-  if (w->pending)
-    {
-      pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
-      w->pending = 0;
-    }
-}
-
-int
-ev_clear_pending (EV_P_ void *w)
-{
-  W w_ = (W)w;
-  int pending = w_->pending;
-
-  if (expect_true (pending))
-    {
-      ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
-      p->w = (W)&pending_w;
-      w_->pending = 0;
-      return p->events;
-    }
-  else
-    return 0;
-}
-
-inline_size void
-pri_adjust (EV_P_ W w)
-{
-  int pri = ev_priority (w);
-  pri = pri < EV_MINPRI ? EV_MINPRI : pri;
-  pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
-  ev_set_priority (w, pri);
-}
-
-inline_speed void
-ev_start (EV_P_ W w, int active)
-{
-  pri_adjust (EV_A_ w);
-  w->active = active;
-  ev_ref (EV_A);
-}
-
-inline_size void
-ev_stop (EV_P_ W w)
-{
-  ev_unref (EV_A);
-  w->active = 0;
-}
-
-/*****************************************************************************/
-
-void noinline
-ev_io_start (EV_P_ ev_io *w)
-{
-  int fd = w->fd;
-
-  if (expect_false (ev_is_active (w)))
-    return;
-
-  assert (("libev: ev_io_start called with negative fd", fd >= 0));
-  assert (("libev: ev_io_start called with illegal event mask",
-      !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE | EV_LIBUV_KQUEUE_HACK))));
-
-  EV_FREQUENT_CHECK;
-
-  ev_start (EV_A_ (W)w, 1);
-  array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
-  wlist_add (&anfds[fd].head, (WL)w);
-
-  fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
-  w->events &= ~EV__IOFDSET;
-
-  EV_FREQUENT_CHECK;
-}
-
-void noinline
-ev_io_stop (EV_P_ ev_io *w)
-{
-  clear_pending (EV_A_ (W)w);
-  if (expect_false (!ev_is_active (w)))
-    return;
-
-  assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
-
-  EV_FREQUENT_CHECK;
-
-  wlist_del (&anfds[w->fd].head, (WL)w);
-  ev_stop (EV_A_ (W)w);
-
-  fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
-
-  EV_FREQUENT_CHECK;
-}
-
-void noinline
-ev_timer_start (EV_P_ ev_timer *w)
-{
-  if (expect_false (ev_is_active (w)))
-    return;
-
-  ev_at (w) += mn_now;
-
-  assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
-
-  EV_FREQUENT_CHECK;
-
-  ++timercnt;
-  ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
-  array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);
-  ANHE_w (timers [ev_active (w)]) = (WT)w;
-  ANHE_at_cache (timers [ev_active (w)]);
-  upheap (timers, ev_active (w));
-
-  EV_FREQUENT_CHECK;
-
-  /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
-}
-
-void noinline
-ev_timer_stop (EV_P_ ev_timer *w)
-{
-  clear_pending (EV_A_ (W)w);
-  if (expect_false (!ev_is_active (w)))
-    return;
-
-  EV_FREQUENT_CHECK;
-
-  {
-    int active = ev_active (w);
-
-    assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
-
-    --timercnt;
-
-    if (expect_true (active < timercnt + HEAP0))
-      {
-        timers [active] = timers [timercnt + HEAP0];
-        adjustheap (timers, timercnt, active);
-      }
-  }
-
-  ev_at (w) -= mn_now;
-
-  ev_stop (EV_A_ (W)w);
-
-  EV_FREQUENT_CHECK;
-}
-
-void noinline
-ev_timer_again (EV_P_ ev_timer *w)
-{
-  EV_FREQUENT_CHECK;
-
-  if (ev_is_active (w))
-    {
-      if (w->repeat)
-        {
-          ev_at (w) = mn_now + w->repeat;
-          ANHE_at_cache (timers [ev_active (w)]);
-          adjustheap (timers, timercnt, ev_active (w));
-        }
-      else
-        ev_timer_stop (EV_A_ w);
-    }
-  else if (w->repeat)
-    {
-      ev_at (w) = w->repeat;
-      ev_timer_start (EV_A_ w);
-    }
-
-  EV_FREQUENT_CHECK;
-}
-
-ev_tstamp
-ev_timer_remaining (EV_P_ ev_timer *w)
-{
-  return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
-}
-
-#if EV_PERIODIC_ENABLE
-void noinline
-ev_periodic_start (EV_P_ ev_periodic *w)
-{
-  if (expect_false (ev_is_active (w)))
-    return;
-
-  if (w->reschedule_cb)
-    ev_at (w) = w->reschedule_cb (w, ev_rt_now);
-  else if (w->interval)
-    {
-      assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
-      periodic_recalc (EV_A_ w);
-    }
-  else
-    ev_at (w) = w->offset;
-
-  EV_FREQUENT_CHECK;
-
-  ++periodiccnt;
-  ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
-  array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);
-  ANHE_w (periodics [ev_active (w)]) = (WT)w;
-  ANHE_at_cache (periodics [ev_active (w)]);
-  upheap (periodics, ev_active (w));
-
-  EV_FREQUENT_CHECK;
-
-  /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
-}
-
-void noinline
-ev_periodic_stop (EV_P_ ev_periodic *w)
-{
-  clear_pending (EV_A_ (W)w);
-  if (expect_false (!ev_is_active (w)))
-    return;
-
-  EV_FREQUENT_CHECK;
-
-  {
-    int active = ev_active (w);
-
-    assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
-
-    --periodiccnt;
-
-    if (expect_true (active < periodiccnt + HEAP0))
-      {
-        periodics [active] = periodics [periodiccnt + HEAP0];
-        adjustheap (periodics, periodiccnt, active);
-      }
-  }
-
-  ev_stop (EV_A_ (W)w);
-
-  EV_FREQUENT_CHECK;
-}
-
-void noinline
-ev_periodic_again (EV_P_ ev_periodic *w)
-{
-  /* TODO: use adjustheap and recalculation */
-  ev_periodic_stop (EV_A_ w);
-  ev_periodic_start (EV_A_ w);
-}
-#endif
-
-#ifndef SA_RESTART
-# define SA_RESTART 0
-#endif
-
-#if EV_SIGNAL_ENABLE
-
-void noinline
-ev_signal_start (EV_P_ ev_signal *w)
-{
-  if (expect_false (ev_is_active (w)))
-    return;
-
-  assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
-
-#if EV_MULTIPLICITY
-  assert (("libev: a signal must not be attached to two different loops",
-           !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
-
-  signals [w->signum - 1].loop = EV_A;
-#endif
-
-  EV_FREQUENT_CHECK;
-
-#if EV_USE_SIGNALFD
-  if (sigfd == -2)
-    {
-      sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
-      if (sigfd < 0 && errno == EINVAL)
-        sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
-
-      if (sigfd >= 0)
-        {
-          fd_intern (sigfd); /* doing it twice will not hurt */
-
-          sigemptyset (&sigfd_set);
-
-          ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
-          ev_set_priority (&sigfd_w, EV_MAXPRI);
-          ev_io_start (EV_A_ &sigfd_w);
-          ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
-        }
-    }
-
-  if (sigfd >= 0)
-    {
-      /* TODO: check .head */
-      sigaddset (&sigfd_set, w->signum);
-      sigprocmask (SIG_BLOCK, &sigfd_set, 0);
-
-      signalfd (sigfd, &sigfd_set, 0);
-    }
-#endif
-
-  ev_start (EV_A_ (W)w, 1);
-  wlist_add (&signals [w->signum - 1].head, (WL)w);
-
-  if (!((WL)w)->next)
-# if EV_USE_SIGNALFD
-    if (sigfd < 0) /*TODO*/
-# endif
-      {
-# ifdef _WIN32
-        evpipe_init (EV_A);
-
-        signal (w->signum, ev_sighandler);
-# else
-        struct sigaction sa;
-
-        evpipe_init (EV_A);
-
-        sa.sa_handler = ev_sighandler;
-        sigfillset (&sa.sa_mask);
-        sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
-        sigaction (w->signum, &sa, 0);
-
-        if (origflags & EVFLAG_NOSIGMASK)
-          {
-            sigemptyset (&sa.sa_mask);
-            sigaddset (&sa.sa_mask, w->signum);
-            sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
-          }
-#endif
-      }
-
-  EV_FREQUENT_CHECK;
-}
-
-void noinline
-ev_signal_stop (EV_P_ ev_signal *w)
-{
-  clear_pending (EV_A_ (W)w);
-  if (expect_false (!ev_is_active (w)))
-    return;
-
-  EV_FREQUENT_CHECK;
-
-  wlist_del (&signals [w->signum - 1].head, (WL)w);
-  ev_stop (EV_A_ (W)w);
-
-  if (!signals [w->signum - 1].head)
-    {
-#if EV_MULTIPLICITY
-      signals [w->signum - 1].loop = 0; /* unattach from signal */
-#endif
-#if EV_USE_SIGNALFD
-      if (sigfd >= 0)
-        {
-          sigset_t ss;
-
-          sigemptyset (&ss);
-          sigaddset (&ss, w->signum);
-          sigdelset (&sigfd_set, w->signum);
-
-          signalfd (sigfd, &sigfd_set, 0);
-          sigprocmask (SIG_UNBLOCK, &ss, 0);
-        }
-      else
-#endif
-        signal (w->signum, SIG_DFL);
-    }
-
-  EV_FREQUENT_CHECK;
-}
-
-#endif
-
-#if EV_CHILD_ENABLE
-
-void
-ev_child_start (EV_P_ ev_child *w)
-{
-#if EV_MULTIPLICITY
-  assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
-#endif
-  if (expect_false (ev_is_active (w)))
-    return;
-
-  EV_FREQUENT_CHECK;
-
-  ev_start (EV_A_ (W)w, 1);
-  wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
-
-  EV_FREQUENT_CHECK;
-}
-
-void
-ev_child_stop (EV_P_ ev_child *w)
-{
-  clear_pending (EV_A_ (W)w);
-  if (expect_false (!ev_is_active (w)))
-    return;
-
-  EV_FREQUENT_CHECK;
-
-  wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
-  ev_stop (EV_A_ (W)w);
-
-  EV_FREQUENT_CHECK;
-}
-
-#endif
-
-#if EV_STAT_ENABLE
-
-# ifdef _WIN32
-#  undef lstat
-#  define lstat(a,b) _stati64 (a,b)
-# endif
-
-#define DEF_STAT_INTERVAL  5.0074891
-#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
-#define MIN_STAT_INTERVAL  0.1074891
-
-static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
-
-#if EV_USE_INOTIFY
-
-/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
-# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
-
-static void noinline
-infy_add (EV_P_ ev_stat *w)
-{
-  w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD);
-
-  if (w->wd >= 0)
-    {
-      struct statfs sfs;
-
-      /* now local changes will be tracked by inotify, but remote changes won't */
-      /* unless the filesystem is known to be local, we therefore still poll */
-      /* also do poll on <2.6.25, but with normal frequency */
-
-      if (!fs_2625)
-        w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
-      else if (!statfs (w->path, &sfs)
-               && (sfs.f_type == 0x1373 /* devfs */
-                   || sfs.f_type == 0xEF53 /* ext2/3 */
-                   || sfs.f_type == 0x3153464a /* jfs */
-                   || sfs.f_type == 0x52654973 /* reiser3 */
-                   || sfs.f_type == 0x01021994 /* tempfs */
-                   || sfs.f_type == 0x58465342 /* xfs */))
-        w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
-      else
-        w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
-    }
-  else
-    {
-      /* can't use inotify, continue to stat */
-      w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
-
-      /* if path is not there, monitor some parent directory for speedup hints */
-      /* note that exceeding the hardcoded path limit is not a correctness issue, */
-      /* but an efficiency issue only */
-      if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
-        {
-          char path [4096];
-          strcpy (path, w->path);
-
-          do
-            {
-              int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
-                       | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
-
-              char *pend = strrchr (path, '/');
-
-              if (!pend || pend == path)
-                break;
-
-              *pend = 0;
-              w->wd = inotify_add_watch (fs_fd, path, mask);
-            }
-          while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
-        }
-    }
-
-  if (w->wd >= 0)
-    wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
-
-  /* now re-arm timer, if required */
-  if (ev_is_active (&w->timer)) ev_ref (EV_A);
-  ev_timer_again (EV_A_ &w->timer);
-  if (ev_is_active (&w->timer)) ev_unref (EV_A);
-}
-
-static void noinline
-infy_del (EV_P_ ev_stat *w)
-{
-  int slot;
-  int wd = w->wd;
-
-  if (wd < 0)
-    return;
-
-  w->wd = -2;
-  slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
-  wlist_del (&fs_hash [slot].head, (WL)w);
-
-  /* remove this watcher, if others are watching it, they will rearm */
-  inotify_rm_watch (fs_fd, wd);
-}
-
-static void noinline
-infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
-{
-  if (slot < 0)
-    /* overflow, need to check for all hash slots */
-    for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
-      infy_wd (EV_A_ slot, wd, ev);
-  else
-    {
-      WL w_;
-
-      for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
-        {
-          ev_stat *w = (ev_stat *)w_;
-          w_ = w_->next; /* lets us remove this watcher and all before it */
-
-          if (w->wd == wd || wd == -1)
-            {
-              if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
-                {
-                  wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
-                  w->wd = -1;
-                  infy_add (EV_A_ w); /* re-add, no matter what */
-                }
-
-              stat_timer_cb (EV_A_ &w->timer, 0);
-            }
-        }
-    }
-}
-
-static void
-infy_cb (EV_P_ ev_io *w, int revents)
-{
-  char buf [EV_INOTIFY_BUFSIZE];
-  int ofs;
-  int len = read (fs_fd, buf, sizeof (buf));
-
-  for (ofs = 0; ofs < len; )
-    {
-      struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
-      infy_wd (EV_A_ ev->wd, ev->wd, ev);
-      ofs += sizeof (struct inotify_event) + ev->len;
-    }
-}
-
-inline_size void
-ev_check_2625 (EV_P)
-{
-  /* kernels < 2.6.25 are borked
-   * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
-   */
-  if (ev_linux_version () < 0x020619)
-    return;
-
-  fs_2625 = 1;
-}
-
-inline_size int
-infy_newfd (void)
-{
-#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
-  int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
-  if (fd >= 0)
-    return fd;
-#endif
-  return inotify_init ();
-}
-
-inline_size void
-infy_init (EV_P)
-{
-  if (fs_fd != -2)
-    return;
-
-  fs_fd = -1;
-
-  ev_check_2625 (EV_A);
-
-  fs_fd = infy_newfd ();
-
-  if (fs_fd >= 0)
-    {
-      fd_intern (fs_fd);
-      ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
-      ev_set_priority (&fs_w, EV_MAXPRI);
-      ev_io_start (EV_A_ &fs_w);
-      ev_unref (EV_A);
-    }
-}
-
-inline_size void
-infy_fork (EV_P)
-{
-  int slot;
-
-  if (fs_fd < 0)
-    return;
-
-  ev_ref (EV_A);
-  ev_io_stop (EV_A_ &fs_w);
-  close (fs_fd);
-  fs_fd = infy_newfd ();
-
-  if (fs_fd >= 0)
-    {
-      fd_intern (fs_fd);
-      ev_io_set (&fs_w, fs_fd, EV_READ);
-      ev_io_start (EV_A_ &fs_w);
-      ev_unref (EV_A);
-    }
-
-  for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
-    {
-      WL w_ = fs_hash [slot].head;
-      fs_hash [slot].head = 0;
-
-      while (w_)
-        {
-          ev_stat *w = (ev_stat *)w_;
-          w_ = w_->next; /* lets us add this watcher */
-
-          w->wd = -1;
-
-          if (fs_fd >= 0)
-            infy_add (EV_A_ w); /* re-add, no matter what */
-          else
-            {
-              w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
-              if (ev_is_active (&w->timer)) ev_ref (EV_A);
-              ev_timer_again (EV_A_ &w->timer);
-              if (ev_is_active (&w->timer)) ev_unref (EV_A);
-            }
-        }
-    }
-}
-
-#endif
-
-#ifdef _WIN32
-# define EV_LSTAT(p,b) _stati64 (p, b)
-#else
-# define EV_LSTAT(p,b) lstat (p, b)
-#endif
-
-void
-ev_stat_stat (EV_P_ ev_stat *w)
-{
-  if (lstat (w->path, &w->attr) < 0)
-    w->attr.st_nlink = 0;
-  else if (!w->attr.st_nlink)
-    w->attr.st_nlink = 1;
-}
-
-static void noinline
-stat_timer_cb (EV_P_ ev_timer *w_, int revents)
-{
-  ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
-
-  ev_statdata prev = w->attr;
-  ev_stat_stat (EV_A_ w);
-
-  /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
-  if (
-    prev.st_dev      != w->attr.st_dev
-    || prev.st_ino   != w->attr.st_ino
-    || prev.st_mode  != w->attr.st_mode
-    || prev.st_nlink != w->attr.st_nlink
-    || prev.st_uid   != w->attr.st_uid
-    || prev.st_gid   != w->attr.st_gid
-    || prev.st_rdev  != w->attr.st_rdev
-    || prev.st_size  != w->attr.st_size
-    || prev.st_atime != w->attr.st_atime
-    || prev.st_mtime != w->attr.st_mtime
-    || prev.st_ctime != w->attr.st_ctime
-  ) {
-      /* we only update w->prev on actual differences */
-      /* in case we test more often than invoke the callback, */
-      /* to ensure that prev is always different to attr */
-      w->prev = prev;
-
-      #if EV_USE_INOTIFY
-        if (fs_fd >= 0)
-          {
-            infy_del (EV_A_ w);
-            infy_add (EV_A_ w);
-            ev_stat_stat (EV_A_ w); /* avoid race... */
-          }
-      #endif
-
-      ev_feed_event (EV_A_ w, EV_STAT);
-    }
-}
-
-void
-ev_stat_start (EV_P_ ev_stat *w)
-{
-  if (expect_false (ev_is_active (w)))
-    return;
-
-  ev_stat_stat (EV_A_ w);
-
-  if (w->interval < MIN_STAT_INTERVAL && w->interval)
-    w->interval = MIN_STAT_INTERVAL;
-
-  ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL);
-  ev_set_priority (&w->timer, ev_priority (w));
-
-#if EV_USE_INOTIFY
-  infy_init (EV_A);
-
-  if (fs_fd >= 0)
-    infy_add (EV_A_ w);
-  else
-#endif
-    {
-      ev_timer_again (EV_A_ &w->timer);
-      ev_unref (EV_A);
-    }
-
-  ev_start (EV_A_ (W)w, 1);
-
-  EV_FREQUENT_CHECK;
-}
-
-void
-ev_stat_stop (EV_P_ ev_stat *w)
-{
-  clear_pending (EV_A_ (W)w);
-  if (expect_false (!ev_is_active (w)))
-    return;
-
-  EV_FREQUENT_CHECK;
-
-#if EV_USE_INOTIFY
-  infy_del (EV_A_ w);
-#endif
-
-  if (ev_is_active (&w->timer))
-    {
-      ev_ref (EV_A);
-      ev_timer_stop (EV_A_ &w->timer);
-    }
-
-  ev_stop (EV_A_ (W)w);
-
-  EV_FREQUENT_CHECK;
-}
-#endif
-
-#if EV_IDLE_ENABLE
-void
-ev_idle_start (EV_P_ ev_idle *w)
-{
-  if (expect_false (ev_is_active (w)))
-    return;
-
-  pri_adjust (EV_A_ (W)w);
-
-  EV_FREQUENT_CHECK;
-
-  {
-    int active = ++idlecnt [ABSPRI (w)];
-
-    ++idleall;
-    ev_start (EV_A_ (W)w, active);
-
-    array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
-    idles [ABSPRI (w)][active - 1] = w;
-  }
-
-  EV_FREQUENT_CHECK;
-}
-
-void
-ev_idle_stop (EV_P_ ev_idle *w)
-{
-  clear_pending (EV_A_ (W)w);
-  if (expect_false (!ev_is_active (w)))
-    return;
-
-  EV_FREQUENT_CHECK;
-
-  {
-    int active = ev_active (w);
-
-    idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
-    ev_active (idles [ABSPRI (w)][active - 1]) = active;
-
-    ev_stop (EV_A_ (W)w);
-    --idleall;
-  }
-
-  EV_FREQUENT_CHECK;
-}
-#endif
-
-#if EV_PREPARE_ENABLE
-void
-ev_prepare_start (EV_P_ ev_prepare *w)
-{
-  if (expect_false (ev_is_active (w)))
-    return;
-
-  EV_FREQUENT_CHECK;
-
-  ev_start (EV_A_ (W)w, ++preparecnt);
-  array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
-  prepares [preparecnt - 1] = w;
-
-  EV_FREQUENT_CHECK;
-}
-
-void
-ev_prepare_stop (EV_P_ ev_prepare *w)
-{
-  clear_pending (EV_A_ (W)w);
-  if (expect_false (!ev_is_active (w)))
-    return;
-
-  EV_FREQUENT_CHECK;
-
-  {
-    int active = ev_active (w);
-
-    prepares [active - 1] = prepares [--preparecnt];
-    ev_active (prepares [active - 1]) = active;
-  }
-
-  ev_stop (EV_A_ (W)w);
-
-  EV_FREQUENT_CHECK;
-}
-#endif
-
-#if EV_CHECK_ENABLE
-void
-ev_check_start (EV_P_ ev_check *w)
-{
-  if (expect_false (ev_is_active (w)))
-    return;
-
-  EV_FREQUENT_CHECK;
-
-  ev_start (EV_A_ (W)w, ++checkcnt);
-  array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
-  checks [checkcnt - 1] = w;
-
-  EV_FREQUENT_CHECK;
-}
-
-void
-ev_check_stop (EV_P_ ev_check *w)
-{
-  clear_pending (EV_A_ (W)w);
-  if (expect_false (!ev_is_active (w)))
-    return;
-
-  EV_FREQUENT_CHECK;
-
-  {
-    int active = ev_active (w);
-
-    checks [active - 1] = checks [--checkcnt];
-    ev_active (checks [active - 1]) = active;
-  }
-
-  ev_stop (EV_A_ (W)w);
-
-  EV_FREQUENT_CHECK;
-}
-#endif
-
-#if EV_EMBED_ENABLE
-void noinline
-ev_embed_sweep (EV_P_ ev_embed *w)
-{
-  ev_run (w->other, EVRUN_NOWAIT);
-}
-
-static void
-embed_io_cb (EV_P_ ev_io *io, int revents)
-{
-  ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
-
-  if (ev_cb (w))
-    ev_feed_event (EV_A_ (W)w, EV_EMBED);
-  else
-    ev_run (w->other, EVRUN_NOWAIT);
-}
-
-static void
-embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
-{
-  ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
-
-  {
-    EV_P = w->other;
-
-    while (fdchangecnt)
-      {
-        fd_reify (EV_A);
-        ev_run (EV_A_ EVRUN_NOWAIT);
-      }
-  }
-}
-
-static void
-embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
-{
-  ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
-
-  ev_embed_stop (EV_A_ w);
-
-  {
-    EV_P = w->other;
-
-    ev_loop_fork (EV_A);
-    ev_run (EV_A_ EVRUN_NOWAIT);
-  }
-
-  ev_embed_start (EV_A_ w);
-}
-
-#if 0
-static void
-embed_idle_cb (EV_P_ ev_idle *idle, int revents)
-{
-  ev_idle_stop (EV_A_ idle);
-}
-#endif
-
-void
-ev_embed_start (EV_P_ ev_embed *w)
-{
-  if (expect_false (ev_is_active (w)))
-    return;
-
-  {
-    EV_P = w->other;
-    assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
-    ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
-  }
-
-  EV_FREQUENT_CHECK;
-
-  ev_set_priority (&w->io, ev_priority (w));
-  ev_io_start (EV_A_ &w->io);
-
-  ev_prepare_init (&w->prepare, embed_prepare_cb);
-  ev_set_priority (&w->prepare, EV_MINPRI);
-  ev_prepare_start (EV_A_ &w->prepare);
-
-  ev_fork_init (&w->fork, embed_fork_cb);
-  ev_fork_start (EV_A_ &w->fork);
-
-  /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
-
-  ev_start (EV_A_ (W)w, 1);
-
-  EV_FREQUENT_CHECK;
-}
-
-void
-ev_embed_stop (EV_P_ ev_embed *w)
-{
-  clear_pending (EV_A_ (W)w);
-  if (expect_false (!ev_is_active (w)))
-    return;
-
-  EV_FREQUENT_CHECK;
-
-  ev_io_stop      (EV_A_ &w->io);
-  ev_prepare_stop (EV_A_ &w->prepare);
-  ev_fork_stop    (EV_A_ &w->fork);
-
-  ev_stop (EV_A_ (W)w);
-
-  EV_FREQUENT_CHECK;
-}
-#endif
-
-#if EV_FORK_ENABLE
-void
-ev_fork_start (EV_P_ ev_fork *w)
-{
-  if (expect_false (ev_is_active (w)))
-    return;
-
-  EV_FREQUENT_CHECK;
-
-  ev_start (EV_A_ (W)w, ++forkcnt);
-  array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
-  forks [forkcnt - 1] = w;
-
-  EV_FREQUENT_CHECK;
-}
-
-void
-ev_fork_stop (EV_P_ ev_fork *w)
-{
-  clear_pending (EV_A_ (W)w);
-  if (expect_false (!ev_is_active (w)))
-    return;
-
-  EV_FREQUENT_CHECK;
-
-  {
-    int active = ev_active (w);
-
-    forks [active - 1] = forks [--forkcnt];
-    ev_active (forks [active - 1]) = active;
-  }
-
-  ev_stop (EV_A_ (W)w);
-
-  EV_FREQUENT_CHECK;
-}
-#endif
-
-#if EV_CLEANUP_ENABLE
-void
-ev_cleanup_start (EV_P_ ev_cleanup *w)
-{
-  if (expect_false (ev_is_active (w)))
-    return;
-
-  EV_FREQUENT_CHECK;
-
-  ev_start (EV_A_ (W)w, ++cleanupcnt);
-  array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
-  cleanups [cleanupcnt - 1] = w;
-
-  /* cleanup watchers should never keep a refcount on the loop */
-  ev_unref (EV_A);
-  EV_FREQUENT_CHECK;
-}
-
-void
-ev_cleanup_stop (EV_P_ ev_cleanup *w)
-{
-  clear_pending (EV_A_ (W)w);
-  if (expect_false (!ev_is_active (w)))
-    return;
-
-  EV_FREQUENT_CHECK;
-  ev_ref (EV_A);
-
-  {
-    int active = ev_active (w);
-
-    cleanups [active - 1] = cleanups [--cleanupcnt];
-    ev_active (cleanups [active - 1]) = active;
-  }
-
-  ev_stop (EV_A_ (W)w);
-
-  EV_FREQUENT_CHECK;
-}
-#endif
-
-#if EV_ASYNC_ENABLE
-void
-ev_async_start (EV_P_ ev_async *w)
-{
-  if (expect_false (ev_is_active (w)))
-    return;
-
-  w->sent = 0;
-
-  evpipe_init (EV_A);
-
-  EV_FREQUENT_CHECK;
-
-  ev_start (EV_A_ (W)w, ++asynccnt);
-  array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
-  asyncs [asynccnt - 1] = w;
-
-  EV_FREQUENT_CHECK;
-}
-
-void
-ev_async_stop (EV_P_ ev_async *w)
-{
-  clear_pending (EV_A_ (W)w);
-  if (expect_false (!ev_is_active (w)))
-    return;
-
-  EV_FREQUENT_CHECK;
-
-  {
-    int active = ev_active (w);
-
-    asyncs [active - 1] = asyncs [--asynccnt];
-    ev_active (asyncs [active - 1]) = active;
-  }
-
-  ev_stop (EV_A_ (W)w);
-
-  EV_FREQUENT_CHECK;
-}
-
-void
-ev_async_send (EV_P_ ev_async *w)
-{
-  w->sent = 1;
-  evpipe_write (EV_A_ &async_pending);
-}
-#endif
-
-/*****************************************************************************/
-
-struct ev_once
-{
-  ev_io io;
-  ev_timer to;
-  void (*cb)(int revents, void *arg);
-  void *arg;
-};
-
-static void
-once_cb (EV_P_ struct ev_once *once, int revents)
-{
-  void (*cb)(int revents, void *arg) = once->cb;
-  void *arg = once->arg;
-
-  ev_io_stop    (EV_A_ &once->io);
-  ev_timer_stop (EV_A_ &once->to);
-  ev_free (once);
-
-  cb (revents, arg);
-}
-
-static void
-once_cb_io (EV_P_ ev_io *w, int revents)
-{
-  struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io));
-
-  once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to));
-}
-
-static void
-once_cb_to (EV_P_ ev_timer *w, int revents)
-{
-  struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to));
-
-  once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
-}
-
-void
-ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
-{
-  struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
-
-  if (expect_false (!once))
-    {
-      cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
-      return;
-    }
-
-  once->cb  = cb;
-  once->arg = arg;
-
-  ev_init (&once->io, once_cb_io);
-  if (fd >= 0)
-    {
-      ev_io_set (&once->io, fd, events);
-      ev_io_start (EV_A_ &once->io);
-    }
-
-  ev_init (&once->to, once_cb_to);
-  if (timeout >= 0.)
-    {
-      ev_timer_set (&once->to, timeout, 0.);
-      ev_timer_start (EV_A_ &once->to);
-    }
-}
-
-/*****************************************************************************/
-
-#if EV_WALK_ENABLE
-void
-ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
-{
-  int i, j;
-  ev_watcher_list *wl, *wn;
-
-  if (types & (EV_IO | EV_EMBED))
-    for (i = 0; i < anfdmax; ++i)
-      for (wl = anfds [i].head; wl; )
-        {
-          wn = wl->next;
-
-#if EV_EMBED_ENABLE
-          if (ev_cb ((ev_io *)wl) == embed_io_cb)
-            {
-              if (types & EV_EMBED)
-                cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io));
-            }
-          else
-#endif
-#if EV_USE_INOTIFY
-          if (ev_cb ((ev_io *)wl) == infy_cb)
-            ;
-          else
-#endif
-          if ((ev_io *)wl != &pipe_w)
-            if (types & EV_IO)
-              cb (EV_A_ EV_IO, wl);
-
-          wl = wn;
-        }
-
-  if (types & (EV_TIMER | EV_STAT))
-    for (i = timercnt + HEAP0; i-- > HEAP0; )
-#if EV_STAT_ENABLE
-      /*TODO: timer is not always active*/
-      if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb)
-        {
-          if (types & EV_STAT)
-            cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer));
-        }
-      else
-#endif
-      if (types & EV_TIMER)
-        cb (EV_A_ EV_TIMER, ANHE_w (timers [i]));
-
-#if EV_PERIODIC_ENABLE
-  if (types & EV_PERIODIC)
-    for (i = periodiccnt + HEAP0; i-- > HEAP0; )
-      cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
-#endif
-
-#if EV_IDLE_ENABLE
-  if (types & EV_IDLE)
-    for (j = NUMPRI; j--; )
-      for (i = idlecnt [j]; i--; )
-        cb (EV_A_ EV_IDLE, idles [j][i]);
-#endif
-
-#if EV_FORK_ENABLE
-  if (types & EV_FORK)
-    for (i = forkcnt; i--; )
-      if (ev_cb (forks [i]) != embed_fork_cb)
-        cb (EV_A_ EV_FORK, forks [i]);
-#endif
-
-#if EV_ASYNC_ENABLE
-  if (types & EV_ASYNC)
-    for (i = asynccnt; i--; )
-      cb (EV_A_ EV_ASYNC, asyncs [i]);
-#endif
-
-#if EV_PREPARE_ENABLE
-  if (types & EV_PREPARE)
-    for (i = preparecnt; i--; )
-# if EV_EMBED_ENABLE
-      if (ev_cb (prepares [i]) != embed_prepare_cb)
-# endif
-        cb (EV_A_ EV_PREPARE, prepares [i]);
-#endif
-
-#if EV_CHECK_ENABLE
-  if (types & EV_CHECK)
-    for (i = checkcnt; i--; )
-      cb (EV_A_ EV_CHECK, checks [i]);
-#endif
-
-#if EV_SIGNAL_ENABLE
-  if (types & EV_SIGNAL)
-    for (i = 0; i < EV_NSIG - 1; ++i)
-      for (wl = signals [i].head; wl; )
-        {
-          wn = wl->next;
-          cb (EV_A_ EV_SIGNAL, wl);
-          wl = wn;
-        }
-#endif
-
-#if EV_CHILD_ENABLE
-  if (types & EV_CHILD)
-    for (i = (EV_PID_HASHSIZE); i--; )
-      for (wl = childs [i]; wl; )
-        {
-          wn = wl->next;
-          cb (EV_A_ EV_CHILD, wl);
-          wl = wn;
-        }
-#endif
-/* EV_STAT     0x00001000 *//* stat data changed */
-/* EV_EMBED    0x00010000 *//* embedded event loop needs sweep */
-}
-#endif
-
-#if EV_MULTIPLICITY
-  #include "ev_wrap.h"
-#endif
-
-EV_CPP(})
-
diff --git a/deps/uv/src/unix/ev/ev.pod b/deps/uv/src/unix/ev/ev.pod
deleted file mode 100644
index 4bbef1fcf2..0000000000
--- a/deps/uv/src/unix/ev/ev.pod
+++ /dev/null
@@ -1,5243 +0,0 @@
-=head1 NAME
-
-libev - a high performance full-featured event loop written in C
-
-=head1 SYNOPSIS
-
-   #include <ev.h>
-
-=head2 EXAMPLE PROGRAM
-
-   // a single header file is required
-   #include <ev.h>
-
-   #include <stdio.h> // for puts
-
-   // every watcher type has its own typedef'd struct
-   // with the name ev_TYPE
-   ev_io stdin_watcher;
-   ev_timer timeout_watcher;
-
-   // all watcher callbacks have a similar signature
-   // this callback is called when data is readable on stdin
-   static void
-   stdin_cb (EV_P_ ev_io *w, int revents)
-   {
-     puts ("stdin ready");
-     // for one-shot events, one must manually stop the watcher
-     // with its corresponding stop function.
-     ev_io_stop (EV_A_ w);
-
-     // this causes all nested ev_run's to stop iterating
-     ev_break (EV_A_ EVBREAK_ALL);
-   }
-
-   // another callback, this time for a time-out
-   static void
-   timeout_cb (EV_P_ ev_timer *w, int revents)
-   {
-     puts ("timeout");
-     // this causes the innermost ev_run to stop iterating
-     ev_break (EV_A_ EVBREAK_ONE);
-   }
-
-   int
-   main (void)
-   {
-     // use the default event loop unless you have special needs
-     struct ev_loop *loop = EV_DEFAULT;
-
-     // initialise an io watcher, then start it
-     // this one will watch for stdin to become readable
-     ev_io_init (&stdin_watcher, stdin_cb, /*STDIN_FILENO*/ 0, EV_READ);
-     ev_io_start (loop, &stdin_watcher);
-
-     // initialise a timer watcher, then start it
-     // simple non-repeating 5.5 second timeout
-     ev_timer_init (&timeout_watcher, timeout_cb, 5.5, 0.);
-     ev_timer_start (loop, &timeout_watcher);
-
-     // now wait for events to arrive
-     ev_run (loop, 0);
-
-     // break was called, so exit
-     return 0;
-   }
-
-=head1 ABOUT THIS DOCUMENT
-
-This document documents the libev software package.
-
-The newest version of this document is also available as an html-formatted
-web page you might find easier to navigate when reading it for the first
-time: L<http://pod.tst.eu/http://cvs.schmorp.de/libev/ev.pod>.
-
-While this document tries to be as complete as possible in documenting
-libev, its usage and the rationale behind its design, it is not a tutorial
-on event-based programming, nor will it introduce event-based programming
-with libev.
-
-Familiarity with event based programming techniques in general is assumed
-throughout this document.
-
-=head1 WHAT TO READ WHEN IN A HURRY
-
-This manual tries to be very detailed, but unfortunately, this also makes
-it very long. If you just want to know the basics of libev, I suggest
-reading L<ANATOMY OF A WATCHER>, then the L<EXAMPLE PROGRAM> above and
-look up the missing functions in L<GLOBAL FUNCTIONS> and the C<ev_io> and
-C<ev_timer> sections in L<WATCHER TYPES>.
-
-=head1 ABOUT LIBEV
-
-Libev is an event loop: you register interest in certain events (such as a
-file descriptor being readable or a timeout occurring), and it will manage
-these event sources and provide your program with events.
-
-To do this, it must take more or less complete control over your process
-(or thread) by executing the I<event loop> handler, and will then
-communicate events via a callback mechanism.
-
-You register interest in certain events by registering so-called I<event
-watchers>, which are relatively small C structures you initialise with the
-details of the event, and then hand it over to libev by I<starting> the
-watcher.
-
-=head2 FEATURES
-
-Libev supports C<select>, C<poll>, the Linux-specific C<epoll>, the
-BSD-specific C<kqueue> and the Solaris-specific event port mechanisms
-for file descriptor events (C<ev_io>), the Linux C<inotify> interface
-(for C<ev_stat>), Linux eventfd/signalfd (for faster and cleaner
-inter-thread wakeup (C<ev_async>)/signal handling (C<ev_signal>)) relative
-timers (C<ev_timer>), absolute timers with customised rescheduling
-(C<ev_periodic>), synchronous signals (C<ev_signal>), process status
-change events (C<ev_child>), and event watchers dealing with the event
-loop mechanism itself (C<ev_idle>, C<ev_embed>, C<ev_prepare> and
-C<ev_check> watchers) as well as file watchers (C<ev_stat>) and even
-limited support for fork events (C<ev_fork>).
-
-It also is quite fast (see this
-L<benchmark|http://libev.schmorp.de/bench.html> comparing it to libevent
-for example).
-
-=head2 CONVENTIONS
-
-Libev is very configurable. In this manual the default (and most common)
-configuration will be described, which supports multiple event loops. For
-more info about various configuration options please have a look at
-B<EMBED> section in this manual. If libev was configured without support
-for multiple event loops, then all functions taking an initial argument of
-name C<loop> (which is always of type C<struct ev_loop *>) will not have
-this argument.
-
-=head2 TIME REPRESENTATION
-
-Libev represents time as a single floating point number, representing
-the (fractional) number of seconds since the (POSIX) epoch (in practice
-somewhere near the beginning of 1970, details are complicated, don't
-ask). This type is called C<ev_tstamp>, which is what you should use
-too. It usually aliases to the C<double> type in C. When you need to do
-any calculations on it, you should treat it as some floating point value.
-
-Unlike the name component C<stamp> might indicate, it is also used for
-time differences (e.g. delays) throughout libev.
-
-=head1 ERROR HANDLING
-
-Libev knows three classes of errors: operating system errors, usage errors
-and internal errors (bugs).
-
-When libev catches an operating system error it cannot handle (for example
-a system call indicating a condition libev cannot fix), it calls the callback
-set via C<ev_set_syserr_cb>, which is supposed to fix the problem or
-abort. The default is to print a diagnostic message and to call C<abort
-()>.
-
-When libev detects a usage error such as a negative timer interval, then
-it will print a diagnostic message and abort (via the C<assert> mechanism,
-so C<NDEBUG> will disable this checking): these are programming errors in
-the libev caller and need to be fixed there.
-
-Libev also has a few internal error-checking C<assert>ions, and also has
-extensive consistency checking code. These do not trigger under normal
-circumstances, as they indicate either a bug in libev or worse.
-
-
-=head1 GLOBAL FUNCTIONS
-
-These functions can be called anytime, even before initialising the
-library in any way.
-
-=over 4
-
-=item ev_tstamp ev_time ()
-
-Returns the current time as libev would use it. Please note that the
-C<ev_now> function is usually faster and also often returns the timestamp
-you actually want to know. Also interesting is the combination of
-C<ev_update_now> and C<ev_now>.
-
-=item ev_sleep (ev_tstamp interval)
-
-Sleep for the given interval: The current thread will be blocked until
-either it is interrupted or the given time interval has passed. Basically
-this is a sub-second-resolution C<sleep ()>.
-
-=item int ev_version_major ()
-
-=item int ev_version_minor ()
-
-You can find out the major and minor ABI version numbers of the library
-you linked against by calling the functions C<ev_version_major> and
-C<ev_version_minor>. If you want, you can compare against the global
-symbols C<EV_VERSION_MAJOR> and C<EV_VERSION_MINOR>, which specify the
-version of the library your program was compiled against.
-
-These version numbers refer to the ABI version of the library, not the
-release version.
-
-Usually, it's a good idea to terminate if the major versions mismatch,
-as this indicates an incompatible change. Minor versions are usually
-compatible to older versions, so a larger minor version alone is usually
-not a problem.
-
-Example: Make sure we haven't accidentally been linked against the wrong
-version (note, however, that this will not detect other ABI mismatches,
-such as LFS or reentrancy).
-
-   assert (("libev version mismatch",
-            ev_version_major () == EV_VERSION_MAJOR
-            && ev_version_minor () >= EV_VERSION_MINOR));
-
-=item unsigned int ev_supported_backends ()
-
-Return the set of all backends (i.e. their corresponding C<EV_BACKEND_*>
-value) compiled into this binary of libev (independent of their
-availability on the system you are running on). See C<ev_default_loop> for
-a description of the set values.
-
-Example: make sure we have the epoll method, because yeah this is cool and
-a must have and can we have a torrent of it please!!!11
-
-   assert (("sorry, no epoll, no sex",
-            ev_supported_backends () & EVBACKEND_EPOLL));
-
-=item unsigned int ev_recommended_backends ()
-
-Return the set of all backends compiled into this binary of libev and
-also recommended for this platform, meaning it will work for most file
-descriptor types. This set is often smaller than the one returned by
-C<ev_supported_backends>, as for example kqueue is broken on most BSDs
-and will not be auto-detected unless you explicitly request it (assuming
-you know what you are doing). This is the set of backends that libev will
-probe for if you specify no backends explicitly.
-
-=item unsigned int ev_embeddable_backends ()
-
-Returns the set of backends that are embeddable in other event loops. This
-value is platform-specific but can include backends not available on the
-current system. To find which embeddable backends might be supported on
-the current system, you would need to look at C<ev_embeddable_backends ()
-& ev_supported_backends ()>, likewise for recommended ones.
-
-See the description of C<ev_embed> watchers for more info.
-
-=item ev_set_allocator (void *(*cb)(void *ptr, long size))
-
-Sets the allocation function to use (the prototype is similar - the
-semantics are identical to the C<realloc> C89/SuS/POSIX function). It is
-used to allocate and free memory (no surprises here). If it returns zero
-when memory needs to be allocated (C<size != 0>), the library might abort
-or take some potentially destructive action.
-
-Since some systems (at least OpenBSD and Darwin) fail to implement
-correct C<realloc> semantics, libev will use a wrapper around the system
-C<realloc> and C<free> functions by default.
-
-You could override this function in high-availability programs to, say,
-free some memory if it cannot allocate memory, to use a special allocator,
-or even to sleep a while and retry until some memory is available.
-
-Example: Replace the libev allocator with one that waits a bit and then
-retries (example requires a standards-compliant C<realloc>).
-
-   static void *
-   persistent_realloc (void *ptr, size_t size)
-   {
-     for (;;)
-       {
-         void *newptr = realloc (ptr, size);
-
-         if (newptr)
-           return newptr;
-
-         sleep (60);
-       }
-   }
-
-   ...
-   ev_set_allocator (persistent_realloc);
-
-=item ev_set_syserr_cb (void (*cb)(const char *msg))
-
-Set the callback function to call on a retryable system call error (such
-as failed select, poll, epoll_wait). The message is a printable string
-indicating the system call or subsystem causing the problem. If this
-callback is set, then libev will expect it to remedy the situation, no
-matter what, when it returns. That is, libev will generally retry the
-requested operation, or, if the condition doesn't go away, do bad stuff
-(such as abort).
-
-Example: This is basically the same thing that libev does internally, too.
-
-   static void
-   fatal_error (const char *msg)
-   {
-     perror (msg);
-     abort ();
-   }
-
-   ...
-   ev_set_syserr_cb (fatal_error);
-
-=item ev_feed_signal (int signum)
-
-This function can be used to "simulate" a signal receive. It is completely
-safe to call this function at any time, from any context, including signal
-handlers or random threads.
-
-Its main use is to customise signal handling in your process, especially
-in the presence of threads. For example, you could block signals
-by default in all threads (and specifying C<EVFLAG_NOSIGMASK> when
-creating any loops), and in one thread, use C<sigwait> or any other
-mechanism to wait for signals, then "deliver" them to libev by calling
-C<ev_feed_signal>.
-
-=back
-
-=head1 FUNCTIONS CONTROLLING EVENT LOOPS
-
-An event loop is described by a C<struct ev_loop *> (the C<struct> is
-I<not> optional in this case unless libev 3 compatibility is disabled, as
-libev 3 had an C<ev_loop> function colliding with the struct name).
-
-The library knows two types of such loops, the I<default> loop, which
-supports child process events, and dynamically created event loops which
-do not.
-
-=over 4
-
-=item struct ev_loop *ev_default_loop (unsigned int flags)
-
-This returns the "default" event loop object, which is what you should
-normally use when you just need "the event loop". Event loop objects and
-the C<flags> parameter are described in more detail in the entry for
-C<ev_loop_new>.
-
-If the default loop is already initialised then this function simply
-returns it (and ignores the flags. If that is troubling you, check
-C<ev_backend ()> afterwards). Otherwise it will create it with the given
-flags, which should almost always be C<0>, unless the caller is also the
-one calling C<ev_run> or otherwise qualifies as "the main program".
-
-If you don't know what event loop to use, use the one returned from this
-function (or via the C<EV_DEFAULT> macro).
-
-Note that this function is I<not> thread-safe, so if you want to use it
-from multiple threads, you have to employ some kind of mutex (note also
-that this case is unlikely, as loops cannot be shared easily between
-threads anyway).
-
-The default loop is the only loop that can handle C<ev_child> watchers,
-and to do this, it always registers a handler for C<SIGCHLD>. If this is
-a problem for your application you can either create a dynamic loop with
-C<ev_loop_new> which doesn't do that, or you can simply overwrite the
-C<SIGCHLD> signal handler I<after> calling C<ev_default_init>.
-
-Example: This is the most typical usage.
-
-   if (!ev_default_loop (0))
-     fatal ("could not initialise libev, bad $LIBEV_FLAGS in environment?");
-
-Example: Restrict libev to the select and poll backends, and do not allow
-environment settings to be taken into account:
-
-   ev_default_loop (EVBACKEND_POLL | EVBACKEND_SELECT | EVFLAG_NOENV);
-
-=item struct ev_loop *ev_loop_new (unsigned int flags)
-
-This will create and initialise a new event loop object. If the loop
-could not be initialised, returns false.
-
-This function is thread-safe, and one common way to use libev with
-threads is indeed to create one loop per thread, and using the default
-loop in the "main" or "initial" thread.
-
-The flags argument can be used to specify special behaviour or specific
-backends to use, and is usually specified as C<0> (or C<EVFLAG_AUTO>).
-
-The following flags are supported:
-
-=over 4
-
-=item C<EVFLAG_AUTO>
-
-The default flags value. Use this if you have no clue (it's the right
-thing, believe me).
-
-=item C<EVFLAG_NOENV>
-
-If this flag bit is or'ed into the flag value (or the program runs setuid
-or setgid) then libev will I<not> look at the environment variable
-C<LIBEV_FLAGS>. Otherwise (the default), this environment variable will
-override the flags completely if it is found in the environment. This is
-useful to try out specific backends to test their performance, or to work
-around bugs.
-
-=item C<EVFLAG_FORKCHECK>
-
-Instead of calling C<ev_loop_fork> manually after a fork, you can also
-make libev check for a fork in each iteration by enabling this flag.
-
-This works by calling C<getpid ()> on every iteration of the loop,
-and thus this might slow down your event loop if you do a lot of loop
-iterations and little real work, but is usually not noticeable (on my
-GNU/Linux system for example, C<getpid> is actually a simple 5-insn sequence
-without a system call and thus I<very> fast, but my GNU/Linux system also has
-C<pthread_atfork> which is even faster).
-
-The big advantage of this flag is that you can forget about fork (and
-forget about forgetting to tell libev about forking) when you use this
-flag.
-
-This flag setting cannot be overridden or specified in the C<LIBEV_FLAGS>
-environment variable.
-
-=item C<EVFLAG_NOINOTIFY>
-
-When this flag is specified, then libev will not attempt to use the
-I<inotify> API for its C<ev_stat> watchers. Apart from debugging and
-testing, this flag can be useful to conserve inotify file descriptors, as
-otherwise each loop using C<ev_stat> watchers consumes one inotify handle.
-
-=item C<EVFLAG_SIGNALFD>
-
-When this flag is specified, then libev will attempt to use the
-I<signalfd> API for its C<ev_signal> (and C<ev_child>) watchers. This API
-delivers signals synchronously, which makes it both faster and might make
-it possible to get the queued signal data. It can also simplify signal
-handling with threads, as long as you properly block signals in your
-threads that are not interested in handling them.
-
-Signalfd will not be used by default as this changes your signal mask, and
-there are a lot of shoddy libraries and programs (glib's threadpool for
-example) that can't properly initialise their signal masks.
-
-=item C<EVFLAG_NOSIGMASK>
-
-When this flag is specified, then libev will avoid to modify the signal
-mask. Specifically, this means you ahve to make sure signals are unblocked
-when you want to receive them.
-
-This behaviour is useful when you want to do your own signal handling, or
-want to handle signals only in specific threads and want to avoid libev
-unblocking the signals.
-
-It's also required by POSIX in a threaded program, as libev calls
-C<sigprocmask>, whose behaviour is officially unspecified.
-
-This flag's behaviour will become the default in future versions of libev.
-
-=item C<EVBACKEND_SELECT>  (value 1, portable select backend)
-
-This is your standard select(2) backend. Not I<completely> standard, as
-libev tries to roll its own fd_set with no limits on the number of fds,
-but if that fails, expect a fairly low limit on the number of fds when
-using this backend. It doesn't scale too well (O(highest_fd)), but its
-usually the fastest backend for a low number of (low-numbered :) fds.
-
-To get good performance out of this backend you need a high amount of
-parallelism (most of the file descriptors should be busy). If you are
-writing a server, you should C<accept ()> in a loop to accept as many
-connections as possible during one iteration. You might also want to have
-a look at C<ev_set_io_collect_interval ()> to increase the amount of
-readiness notifications you get per iteration.
-
-This backend maps C<EV_READ> to the C<readfds> set and C<EV_WRITE> to the
-C<writefds> set (and to work around Microsoft Windows bugs, also onto the
-C<exceptfds> set on that platform).
-
-=item C<EVBACKEND_POLL>    (value 2, poll backend, available everywhere except on windows)
-
-And this is your standard poll(2) backend. It's more complicated
-than select, but handles sparse fds better and has no artificial
-limit on the number of fds you can use (except it will slow down
-considerably with a lot of inactive fds). It scales similarly to select,
-i.e. O(total_fds). See the entry for C<EVBACKEND_SELECT>, above, for
-performance tips.
-
-This backend maps C<EV_READ> to C<POLLIN | POLLERR | POLLHUP>, and
-C<EV_WRITE> to C<POLLOUT | POLLERR | POLLHUP>.
-
-=item C<EVBACKEND_EPOLL>   (value 4, Linux)
-
-Use the linux-specific epoll(7) interface (for both pre- and post-2.6.9
-kernels).
-
-For few fds, this backend is a bit little slower than poll and select,
-but it scales phenomenally better. While poll and select usually scale
-like O(total_fds) where n is the total number of fds (or the highest fd),
-epoll scales either O(1) or O(active_fds).
-
-The epoll mechanism deserves honorable mention as the most misdesigned
-of the more advanced event mechanisms: mere annoyances include silently
-dropping file descriptors, requiring a system call per change per file
-descriptor (and unnecessary guessing of parameters), problems with dup,
-returning before the timeout value, resulting in additional iterations
-(and only giving 5ms accuracy while select on the same platform gives
-0.1ms) and so on. The biggest issue is fork races, however - if a program
-forks then I<both> parent and child process have to recreate the epoll
-set, which can take considerable time (one syscall per file descriptor)
-and is of course hard to detect.
-
-Epoll is also notoriously buggy - embedding epoll fds I<should> work, but
-of course I<doesn't>, and epoll just loves to report events for totally
-I<different> file descriptors (even already closed ones, so one cannot
-even remove them from the set) than registered in the set (especially
-on SMP systems). Libev tries to counter these spurious notifications by
-employing an additional generation counter and comparing that against the
-events to filter out spurious ones, recreating the set when required. Last
-not least, it also refuses to work with some file descriptors which work
-perfectly fine with C<select> (files, many character devices...).
-
-Epoll is truly the train wreck analog among event poll mechanisms,
-a frankenpoll, cobbled together in a hurry, no thought to design or
-interaction with others.
-
-While stopping, setting and starting an I/O watcher in the same iteration
-will result in some caching, there is still a system call per such
-incident (because the same I<file descriptor> could point to a different
-I<file description> now), so its best to avoid that. Also, C<dup ()>'ed
-file descriptors might not work very well if you register events for both
-file descriptors.
-
-Best performance from this backend is achieved by not unregistering all
-watchers for a file descriptor until it has been closed, if possible,
-i.e. keep at least one watcher active per fd at all times. Stopping and
-starting a watcher (without re-setting it) also usually doesn't cause
-extra overhead. A fork can both result in spurious notifications as well
-as in libev having to destroy and recreate the epoll object, which can
-take considerable time and thus should be avoided.
-
-All this means that, in practice, C<EVBACKEND_SELECT> can be as fast or
-faster than epoll for maybe up to a hundred file descriptors, depending on
-the usage. So sad.
-
-While nominally embeddable in other event loops, this feature is broken in
-all kernel versions tested so far.
-
-This backend maps C<EV_READ> and C<EV_WRITE> in the same way as
-C<EVBACKEND_POLL>.
-
-=item C<EVBACKEND_KQUEUE>  (value 8, most BSD clones)
-
-Kqueue deserves special mention, as at the time of this writing, it
-was broken on all BSDs except NetBSD (usually it doesn't work reliably
-with anything but sockets and pipes, except on Darwin, where of course
-it's completely useless). Unlike epoll, however, whose brokenness
-is by design, these kqueue bugs can (and eventually will) be fixed
-without API changes to existing programs. For this reason it's not being
-"auto-detected" unless you explicitly specify it in the flags (i.e. using
-C<EVBACKEND_KQUEUE>) or libev was compiled on a known-to-be-good (-enough)
-system like NetBSD.
-
-You still can embed kqueue into a normal poll or select backend and use it
-only for sockets (after having made sure that sockets work with kqueue on
-the target platform). See C<ev_embed> watchers for more info.
-
-It scales in the same way as the epoll backend, but the interface to the
-kernel is more efficient (which says nothing about its actual speed, of
-course). While stopping, setting and starting an I/O watcher does never
-cause an extra system call as with C<EVBACKEND_EPOLL>, it still adds up to
-two event changes per incident. Support for C<fork ()> is very bad (but
-sane, unlike epoll) and it drops fds silently in similarly hard-to-detect
-cases
-
-This backend usually performs well under most conditions.
-
-While nominally embeddable in other event loops, this doesn't work
-everywhere, so you might need to test for this. And since it is broken
-almost everywhere, you should only use it when you have a lot of sockets
-(for which it usually works), by embedding it into another event loop
-(e.g. C<EVBACKEND_SELECT> or C<EVBACKEND_POLL> (but C<poll> is of course
-also broken on OS X)) and, did I mention it, using it only for sockets.
-
-This backend maps C<EV_READ> into an C<EVFILT_READ> kevent with
-C<NOTE_EOF>, and C<EV_WRITE> into an C<EVFILT_WRITE> kevent with
-C<NOTE_EOF>.
-
-=item C<EVBACKEND_DEVPOLL> (value 16, Solaris 8)
-
-This is not implemented yet (and might never be, unless you send me an
-implementation). According to reports, C</dev/poll> only supports sockets
-and is not embeddable, which would limit the usefulness of this backend
-immensely.
-
-=item C<EVBACKEND_PORT>    (value 32, Solaris 10)
-
-This uses the Solaris 10 event port mechanism. As with everything on Solaris,
-it's really slow, but it still scales very well (O(active_fds)).
-
-While this backend scales well, it requires one system call per active
-file descriptor per loop iteration. For small and medium numbers of file
-descriptors a "slow" C<EVBACKEND_SELECT> or C<EVBACKEND_POLL> backend
-might perform better.
-
-On the positive side, this backend actually performed fully to
-specification in all tests and is fully embeddable, which is a rare feat
-among the OS-specific backends (I vastly prefer correctness over speed
-hacks).
-
-On the negative side, the interface is I<bizarre> - so bizarre that
-even sun itself gets it wrong in their code examples: The event polling
-function sometimes returning events to the caller even though an error
-occurred, but with no indication whether it has done so or not (yes, it's
-even documented that way) - deadly for edge-triggered interfaces where
-you absolutely have to know whether an event occurred or not because you
-have to re-arm the watcher.
-
-Fortunately libev seems to be able to work around these idiocies.
-
-This backend maps C<EV_READ> and C<EV_WRITE> in the same way as
-C<EVBACKEND_POLL>.
-
-=item C<EVBACKEND_ALL>
-
-Try all backends (even potentially broken ones that wouldn't be tried
-with C<EVFLAG_AUTO>). Since this is a mask, you can do stuff such as
-C<EVBACKEND_ALL & ~EVBACKEND_KQUEUE>.
-
-It is definitely not recommended to use this flag, use whatever
-C<ev_recommended_backends ()> returns, or simply do not specify a backend
-at all.
-
-=item C<EVBACKEND_MASK>
-
-Not a backend at all, but a mask to select all backend bits from a
-C<flags> value, in case you want to mask out any backends from a flags
-value (e.g. when modifying the C<LIBEV_FLAGS> environment variable).
-
-=back
-
-If one or more of the backend flags are or'ed into the flags value,
-then only these backends will be tried (in the reverse order as listed
-here). If none are specified, all backends in C<ev_recommended_backends
-()> will be tried.
-
-Example: Try to create a event loop that uses epoll and nothing else.
-
-   struct ev_loop *epoller = ev_loop_new (EVBACKEND_EPOLL | EVFLAG_NOENV);
-   if (!epoller)
-     fatal ("no epoll found here, maybe it hides under your chair");
-
-Example: Use whatever libev has to offer, but make sure that kqueue is
-used if available.
-
-   struct ev_loop *loop = ev_loop_new (ev_recommended_backends () | EVBACKEND_KQUEUE);
-
-=item ev_loop_destroy (loop)
-
-Destroys an event loop object (frees all memory and kernel state
-etc.). None of the active event watchers will be stopped in the normal
-sense, so e.g. C<ev_is_active> might still return true. It is your
-responsibility to either stop all watchers cleanly yourself I<before>
-calling this function, or cope with the fact afterwards (which is usually
-the easiest thing, you can just ignore the watchers and/or C<free ()> them
-for example).
-
-Note that certain global state, such as signal state (and installed signal
-handlers), will not be freed by this function, and related watchers (such
-as signal and child watchers) would need to be stopped manually.
-
-This function is normally used on loop objects allocated by
-C<ev_loop_new>, but it can also be used on the default loop returned by
-C<ev_default_loop>, in which case it is not thread-safe.
-
-Note that it is not advisable to call this function on the default loop
-except in the rare occasion where you really need to free its resources.
-If you need dynamically allocated loops it is better to use C<ev_loop_new>
-and C<ev_loop_destroy>.
-
-=item ev_loop_fork (loop)
-
-This function sets a flag that causes subsequent C<ev_run> iterations to
-reinitialise the kernel state for backends that have one. Despite the
-name, you can call it anytime, but it makes most sense after forking, in
-the child process. You I<must> call it (or use C<EVFLAG_FORKCHECK>) in the
-child before resuming or calling C<ev_run>.
-
-Again, you I<have> to call it on I<any> loop that you want to re-use after 
-a fork, I<even if you do not plan to use the loop in the parent>. This is
-because some kernel interfaces *cough* I<kqueue> *cough* do funny things
-during fork.
-
-On the other hand, you only need to call this function in the child
-process if and only if you want to use the event loop in the child. If
-you just fork+exec or create a new loop in the child, you don't have to
-call it at all (in fact, C<epoll> is so badly broken that it makes a
-difference, but libev will usually detect this case on its own and do a
-costly reset of the backend).
-
-The function itself is quite fast and it's usually not a problem to call
-it just in case after a fork.
-
-Example: Automate calling C<ev_loop_fork> on the default loop when
-using pthreads.
-
-   static void
-   post_fork_child (void)
-   {
-     ev_loop_fork (EV_DEFAULT);
-   }
-
-   ...
-   pthread_atfork (0, 0, post_fork_child);
-
-=item int ev_is_default_loop (loop)
-
-Returns true when the given loop is, in fact, the default loop, and false
-otherwise.
-
-=item unsigned int ev_iteration (loop)
-
-Returns the current iteration count for the event loop, which is identical
-to the number of times libev did poll for new events. It starts at C<0>
-and happily wraps around with enough iterations.
-
-This value can sometimes be useful as a generation counter of sorts (it
-"ticks" the number of loop iterations), as it roughly corresponds with
-C<ev_prepare> and C<ev_check> calls - and is incremented between the
-prepare and check phases.
-
-=item unsigned int ev_depth (loop)
-
-Returns the number of times C<ev_run> was entered minus the number of
-times C<ev_run> was exited normally, in other words, the recursion depth.
-
-Outside C<ev_run>, this number is zero. In a callback, this number is
-C<1>, unless C<ev_run> was invoked recursively (or from another thread),
-in which case it is higher.
-
-Leaving C<ev_run> abnormally (setjmp/longjmp, cancelling the thread,
-throwing an exception etc.), doesn't count as "exit" - consider this
-as a hint to avoid such ungentleman-like behaviour unless it's really
-convenient, in which case it is fully supported.
-
-=item unsigned int ev_backend (loop)
-
-Returns one of the C<EVBACKEND_*> flags indicating the event backend in
-use.
-
-=item ev_tstamp ev_now (loop)
-
-Returns the current "event loop time", which is the time the event loop
-received events and started processing them. This timestamp does not
-change as long as callbacks are being processed, and this is also the base
-time used for relative timers. You can treat it as the timestamp of the
-event occurring (or more correctly, libev finding out about it).
-
-=item ev_now_update (loop)
-
-Establishes the current time by querying the kernel, updating the time
-returned by C<ev_now ()> in the progress. This is a costly operation and
-is usually done automatically within C<ev_run ()>.
-
-This function is rarely useful, but when some event callback runs for a
-very long time without entering the event loop, updating libev's idea of
-the current time is a good idea.
-
-See also L<The special problem of time updates> in the C<ev_timer> section.
-
-=item ev_suspend (loop)
-
-=item ev_resume (loop)
-
-These two functions suspend and resume an event loop, for use when the
-loop is not used for a while and timeouts should not be processed.
-
-A typical use case would be an interactive program such as a game:  When
-the user presses C<^Z> to suspend the game and resumes it an hour later it
-would be best to handle timeouts as if no time had actually passed while
-the program was suspended. This can be achieved by calling C<ev_suspend>
-in your C<SIGTSTP> handler, sending yourself a C<SIGSTOP> and calling
-C<ev_resume> directly afterwards to resume timer processing.
-
-Effectively, all C<ev_timer> watchers will be delayed by the time spend
-between C<ev_suspend> and C<ev_resume>, and all C<ev_periodic> watchers
-will be rescheduled (that is, they will lose any events that would have
-occurred while suspended).
-
-After calling C<ev_suspend> you B<must not> call I<any> function on the
-given loop other than C<ev_resume>, and you B<must not> call C<ev_resume>
-without a previous call to C<ev_suspend>.
-
-Calling C<ev_suspend>/C<ev_resume> has the side effect of updating the
-event loop time (see C<ev_now_update>).
-
-=item ev_run (loop, int flags)
-
-Finally, this is it, the event handler. This function usually is called
-after you have initialised all your watchers and you want to start
-handling events. It will ask the operating system for any new events, call
-the watcher callbacks, an then repeat the whole process indefinitely: This
-is why event loops are called I<loops>.
-
-If the flags argument is specified as C<0>, it will keep handling events
-until either no event watchers are active anymore or C<ev_break> was
-called.
-
-Please note that an explicit C<ev_break> is usually better than
-relying on all watchers to be stopped when deciding when a program has
-finished (especially in interactive programs), but having a program
-that automatically loops as long as it has to and no longer by virtue
-of relying on its watchers stopping correctly, that is truly a thing of
-beauty.
-
-This function is also I<mostly> exception-safe - you can break out of
-a C<ev_run> call by calling C<longjmp> in a callback, throwing a C++
-exception and so on. This does not decrement the C<ev_depth> value, nor
-will it clear any outstanding C<EVBREAK_ONE> breaks.
-
-A flags value of C<EVRUN_NOWAIT> will look for new events, will handle
-those events and any already outstanding ones, but will not wait and
-block your process in case there are no events and will return after one
-iteration of the loop. This is sometimes useful to poll and handle new
-events while doing lengthy calculations, to keep the program responsive.
-
-A flags value of C<EVRUN_ONCE> will look for new events (waiting if
-necessary) and will handle those and any already outstanding ones. It
-will block your process until at least one new event arrives (which could
-be an event internal to libev itself, so there is no guarantee that a
-user-registered callback will be called), and will return after one
-iteration of the loop.
-
-This is useful if you are waiting for some external event in conjunction
-with something not expressible using other libev watchers (i.e. "roll your
-own C<ev_run>"). However, a pair of C<ev_prepare>/C<ev_check> watchers is
-usually a better approach for this kind of thing.
-
-Here are the gory details of what C<ev_run> does:
-
-   - Increment loop depth.
-   - Reset the ev_break status.
-   - Before the first iteration, call any pending watchers.
-   LOOP:
-   - If EVFLAG_FORKCHECK was used, check for a fork.
-   - If a fork was detected (by any means), queue and call all fork watchers.
-   - Queue and call all prepare watchers.
-   - If ev_break was called, goto FINISH.
-   - If we have been forked, detach and recreate the kernel state
-     as to not disturb the other process.
-   - Update the kernel state with all outstanding changes.
-   - Update the "event loop time" (ev_now ()).
-   - Calculate for how long to sleep or block, if at all
-     (active idle watchers, EVRUN_NOWAIT or not having
-     any active watchers at all will result in not sleeping).
-   - Sleep if the I/O and timer collect interval say so.
-   - Increment loop iteration counter.
-   - Block the process, waiting for any events.
-   - Queue all outstanding I/O (fd) events.
-   - Update the "event loop time" (ev_now ()), and do time jump adjustments.
-   - Queue all expired timers.
-   - Queue all expired periodics.
-   - Queue all idle watchers with priority higher than that of pending events.
-   - Queue all check watchers.
-   - Call all queued watchers in reverse order (i.e. check watchers first).
-     Signals and child watchers are implemented as I/O watchers, and will
-     be handled here by queueing them when their watcher gets executed.
-   - If ev_break has been called, or EVRUN_ONCE or EVRUN_NOWAIT
-     were used, or there are no active watchers, goto FINISH, otherwise
-     continue with step LOOP.
-   FINISH:
-   - Reset the ev_break status iff it was EVBREAK_ONE.
-   - Decrement the loop depth.
-   - Return.
-
-Example: Queue some jobs and then loop until no events are outstanding
-anymore.
-
-   ... queue jobs here, make sure they register event watchers as long
-   ... as they still have work to do (even an idle watcher will do..)
-   ev_run (my_loop, 0);
-   ... jobs done or somebody called break. yeah!
-
-=item ev_break (loop, how)
-
-Can be used to make a call to C<ev_run> return early (but only after it
-has processed all outstanding events). The C<how> argument must be either
-C<EVBREAK_ONE>, which will make the innermost C<ev_run> call return, or
-C<EVBREAK_ALL>, which will make all nested C<ev_run> calls return.
-
-This "break state" will be cleared on the next call to C<ev_run>.
-
-It is safe to call C<ev_break> from outside any C<ev_run> calls, too, in
-which case it will have no effect.
-
-=item ev_ref (loop)
-
-=item ev_unref (loop)
-
-Ref/unref can be used to add or remove a reference count on the event
-loop: Every watcher keeps one reference, and as long as the reference
-count is nonzero, C<ev_run> will not return on its own.
-
-This is useful when you have a watcher that you never intend to
-unregister, but that nevertheless should not keep C<ev_run> from
-returning. In such a case, call C<ev_unref> after starting, and C<ev_ref>
-before stopping it.
-
-As an example, libev itself uses this for its internal signal pipe: It
-is not visible to the libev user and should not keep C<ev_run> from
-exiting if no event watchers registered by it are active. It is also an
-excellent way to do this for generic recurring timers or from within
-third-party libraries. Just remember to I<unref after start> and I<ref
-before stop> (but only if the watcher wasn't active before, or was active
-before, respectively. Note also that libev might stop watchers itself
-(e.g. non-repeating timers) in which case you have to C<ev_ref>
-in the callback).
-
-Example: Create a signal watcher, but keep it from keeping C<ev_run>
-running when nothing else is active.
-
-   ev_signal exitsig;
-   ev_signal_init (&exitsig, sig_cb, SIGINT);
-   ev_signal_start (loop, &exitsig);
-   ev_unref (loop);
-
-Example: For some weird reason, unregister the above signal handler again.
-
-   ev_ref (loop);
-   ev_signal_stop (loop, &exitsig);
-
-=item ev_set_io_collect_interval (loop, ev_tstamp interval)
-
-=item ev_set_timeout_collect_interval (loop, ev_tstamp interval)
-
-These advanced functions influence the time that libev will spend waiting
-for events. Both time intervals are by default C<0>, meaning that libev
-will try to invoke timer/periodic callbacks and I/O callbacks with minimum
-latency.
-
-Setting these to a higher value (the C<interval> I<must> be >= C<0>)
-allows libev to delay invocation of I/O and timer/periodic callbacks
-to increase efficiency of loop iterations (or to increase power-saving
-opportunities).
-
-The idea is that sometimes your program runs just fast enough to handle
-one (or very few) event(s) per loop iteration. While this makes the
-program responsive, it also wastes a lot of CPU time to poll for new
-events, especially with backends like C<select ()> which have a high
-overhead for the actual polling but can deliver many events at once.
-
-By setting a higher I<io collect interval> you allow libev to spend more
-time collecting I/O events, so you can handle more events per iteration,
-at the cost of increasing latency. Timeouts (both C<ev_periodic> and
-C<ev_timer>) will be not affected. Setting this to a non-null value will
-introduce an additional C<ev_sleep ()> call into most loop iterations. The
-sleep time ensures that libev will not poll for I/O events more often then
-once per this interval, on average.
-
-Likewise, by setting a higher I<timeout collect interval> you allow libev
-to spend more time collecting timeouts, at the expense of increased
-latency/jitter/inexactness (the watcher callback will be called
-later). C<ev_io> watchers will not be affected. Setting this to a non-null
-value will not introduce any overhead in libev.
-
-Many (busy) programs can usually benefit by setting the I/O collect
-interval to a value near C<0.1> or so, which is often enough for
-interactive servers (of course not for games), likewise for timeouts. It
-usually doesn't make much sense to set it to a lower value than C<0.01>,
-as this approaches the timing granularity of most systems. Note that if
-you do transactions with the outside world and you can't increase the
-parallelity, then this setting will limit your transaction rate (if you
-need to poll once per transaction and the I/O collect interval is 0.01,
-then you can't do more than 100 transactions per second).
-
-Setting the I<timeout collect interval> can improve the opportunity for
-saving power, as the program will "bundle" timer callback invocations that
-are "near" in time together, by delaying some, thus reducing the number of
-times the process sleeps and wakes up again. Another useful technique to
-reduce iterations/wake-ups is to use C<ev_periodic> watchers and make sure
-they fire on, say, one-second boundaries only.
-
-Example: we only need 0.1s timeout granularity, and we wish not to poll
-more often than 100 times per second:
-
-   ev_set_timeout_collect_interval (EV_DEFAULT_UC_ 0.1);
-   ev_set_io_collect_interval (EV_DEFAULT_UC_ 0.01);
-
-=item ev_invoke_pending (loop)
-
-This call will simply invoke all pending watchers while resetting their
-pending state. Normally, C<ev_run> does this automatically when required,
-but when overriding the invoke callback this call comes handy. This
-function can be invoked from a watcher - this can be useful for example
-when you want to do some lengthy calculation and want to pass further
-event handling to another thread (you still have to make sure only one
-thread executes within C<ev_invoke_pending> or C<ev_run> of course).
-
-=item int ev_pending_count (loop)
-
-Returns the number of pending watchers - zero indicates that no watchers
-are pending.
-
-=item ev_set_invoke_pending_cb (loop, void (*invoke_pending_cb)(EV_P))
-
-This overrides the invoke pending functionality of the loop: Instead of
-invoking all pending watchers when there are any, C<ev_run> will call
-this callback instead. This is useful, for example, when you want to
-invoke the actual watchers inside another context (another thread etc.).
-
-If you want to reset the callback, use C<ev_invoke_pending> as new
-callback.
-
-=item ev_set_loop_release_cb (loop, void (*release)(EV_P), void (*acquire)(EV_P))
-
-Sometimes you want to share the same loop between multiple threads. This
-can be done relatively simply by putting mutex_lock/unlock calls around
-each call to a libev function.
-
-However, C<ev_run> can run an indefinite time, so it is not feasible
-to wait for it to return. One way around this is to wake up the event
-loop via C<ev_break> and C<av_async_send>, another way is to set these
-I<release> and I<acquire> callbacks on the loop.
-
-When set, then C<release> will be called just before the thread is
-suspended waiting for new events, and C<acquire> is called just
-afterwards.
-
-Ideally, C<release> will just call your mutex_unlock function, and
-C<acquire> will just call the mutex_lock function again.
-
-While event loop modifications are allowed between invocations of
-C<release> and C<acquire> (that's their only purpose after all), no
-modifications done will affect the event loop, i.e. adding watchers will
-have no effect on the set of file descriptors being watched, or the time
-waited. Use an C<ev_async> watcher to wake up C<ev_run> when you want it
-to take note of any changes you made.
-
-In theory, threads executing C<ev_run> will be async-cancel safe between
-invocations of C<release> and C<acquire>.
-
-See also the locking example in the C<THREADS> section later in this
-document.
-
-=item ev_set_userdata (loop, void *data)
-
-=item void *ev_userdata (loop)
-
-Set and retrieve a single C<void *> associated with a loop. When
-C<ev_set_userdata> has never been called, then C<ev_userdata> returns
-C<0>.
-
-These two functions can be used to associate arbitrary data with a loop,
-and are intended solely for the C<invoke_pending_cb>, C<release> and
-C<acquire> callbacks described above, but of course can be (ab-)used for
-any other purpose as well.
-
-=item ev_verify (loop)
-
-This function only does something when C<EV_VERIFY> support has been
-compiled in, which is the default for non-minimal builds. It tries to go
-through all internal structures and checks them for validity. If anything
-is found to be inconsistent, it will print an error message to standard
-error and call C<abort ()>.
-
-This can be used to catch bugs inside libev itself: under normal
-circumstances, this function will never abort as of course libev keeps its
-data structures consistent.
-
-=back
-
-
-=head1 ANATOMY OF A WATCHER
-
-In the following description, uppercase C<TYPE> in names stands for the
-watcher type, e.g. C<ev_TYPE_start> can mean C<ev_timer_start> for timer
-watchers and C<ev_io_start> for I/O watchers.
-
-A watcher is an opaque structure that you allocate and register to record
-your interest in some event. To make a concrete example, imagine you want
-to wait for STDIN to become readable, you would create an C<ev_io> watcher
-for that:
-
-   static void my_cb (struct ev_loop *loop, ev_io *w, int revents)
-   {
-     ev_io_stop (w);
-     ev_break (loop, EVBREAK_ALL);
-   }
-
-   struct ev_loop *loop = ev_default_loop (0);
-
-   ev_io stdin_watcher;
-
-   ev_init (&stdin_watcher, my_cb);
-   ev_io_set (&stdin_watcher, STDIN_FILENO, EV_READ);
-   ev_io_start (loop, &stdin_watcher);
-
-   ev_run (loop, 0);
-
-As you can see, you are responsible for allocating the memory for your
-watcher structures (and it is I<usually> a bad idea to do this on the
-stack).
-
-Each watcher has an associated watcher structure (called C<struct ev_TYPE>
-or simply C<ev_TYPE>, as typedefs are provided for all watcher structs).
-
-Each watcher structure must be initialised by a call to C<ev_init (watcher
-*, callback)>, which expects a callback to be provided. This callback is
-invoked each time the event occurs (or, in the case of I/O watchers, each
-time the event loop detects that the file descriptor given is readable
-and/or writable).
-
-Each watcher type further has its own C<< ev_TYPE_set (watcher *, ...) >>
-macro to configure it, with arguments specific to the watcher type. There
-is also a macro to combine initialisation and setting in one call: C<<
-ev_TYPE_init (watcher *, callback, ...) >>.
-
-To make the watcher actually watch out for events, you have to start it
-with a watcher-specific start function (C<< ev_TYPE_start (loop, watcher
-*) >>), and you can stop watching for events at any time by calling the
-corresponding stop function (C<< ev_TYPE_stop (loop, watcher *) >>.
-
-As long as your watcher is active (has been started but not stopped) you
-must not touch the values stored in it. Most specifically you must never
-reinitialise it or call its C<ev_TYPE_set> macro.
-
-Each and every callback receives the event loop pointer as first, the
-registered watcher structure as second, and a bitset of received events as
-third argument.
-
-The received events usually include a single bit per event type received
-(you can receive multiple events at the same time). The possible bit masks
-are:
-
-=over 4
-
-=item C<EV_READ>
-
-=item C<EV_WRITE>
-
-The file descriptor in the C<ev_io> watcher has become readable and/or
-writable.
-
-=item C<EV_TIMER>
-
-The C<ev_timer> watcher has timed out.
-
-=item C<EV_PERIODIC>
-
-The C<ev_periodic> watcher has timed out.
-
-=item C<EV_SIGNAL>
-
-The signal specified in the C<ev_signal> watcher has been received by a thread.
-
-=item C<EV_CHILD>
-
-The pid specified in the C<ev_child> watcher has received a status change.
-
-=item C<EV_STAT>
-
-The path specified in the C<ev_stat> watcher changed its attributes somehow.
-
-=item C<EV_IDLE>
-
-The C<ev_idle> watcher has determined that you have nothing better to do.
-
-=item C<EV_PREPARE>
-
-=item C<EV_CHECK>
-
-All C<ev_prepare> watchers are invoked just I<before> C<ev_run> starts
-to gather new events, and all C<ev_check> watchers are invoked just after
-C<ev_run> has gathered them, but before it invokes any callbacks for any
-received events. Callbacks of both watcher types can start and stop as
-many watchers as they want, and all of them will be taken into account
-(for example, a C<ev_prepare> watcher might start an idle watcher to keep
-C<ev_run> from blocking).
-
-=item C<EV_EMBED>
-
-The embedded event loop specified in the C<ev_embed> watcher needs attention.
-
-=item C<EV_FORK>
-
-The event loop has been resumed in the child process after fork (see
-C<ev_fork>).
-
-=item C<EV_CLEANUP>
-
-The event loop is about to be destroyed (see C<ev_cleanup>).
-
-=item C<EV_ASYNC>
-
-The given async watcher has been asynchronously notified (see C<ev_async>).
-
-=item C<EV_CUSTOM>
-
-Not ever sent (or otherwise used) by libev itself, but can be freely used
-by libev users to signal watchers (e.g. via C<ev_feed_event>).
-
-=item C<EV_ERROR>
-
-An unspecified error has occurred, the watcher has been stopped. This might
-happen because the watcher could not be properly started because libev
-ran out of memory, a file descriptor was found to be closed or any other
-problem. Libev considers these application bugs.
-
-You best act on it by reporting the problem and somehow coping with the
-watcher being stopped. Note that well-written programs should not receive
-an error ever, so when your watcher receives it, this usually indicates a
-bug in your program.
-
-Libev will usually signal a few "dummy" events together with an error, for
-example it might indicate that a fd is readable or writable, and if your
-callbacks is well-written it can just attempt the operation and cope with
-the error from read() or write(). This will not work in multi-threaded
-programs, though, as the fd could already be closed and reused for another
-thing, so beware.
-
-=back
-
-=head2 GENERIC WATCHER FUNCTIONS
-
-=over 4
-
-=item C<ev_init> (ev_TYPE *watcher, callback)
-
-This macro initialises the generic portion of a watcher. The contents
-of the watcher object can be arbitrary (so C<malloc> will do). Only
-the generic parts of the watcher are initialised, you I<need> to call
-the type-specific C<ev_TYPE_set> macro afterwards to initialise the
-type-specific parts. For each type there is also a C<ev_TYPE_init> macro
-which rolls both calls into one.
-
-You can reinitialise a watcher at any time as long as it has been stopped
-(or never started) and there are no pending events outstanding.
-
-The callback is always of type C<void (*)(struct ev_loop *loop, ev_TYPE *watcher,
-int revents)>.
-
-Example: Initialise an C<ev_io> watcher in two steps.
-
-   ev_io w;
-   ev_init (&w, my_cb);
-   ev_io_set (&w, STDIN_FILENO, EV_READ);
-
-=item C<ev_TYPE_set> (ev_TYPE *watcher, [args])
-
-This macro initialises the type-specific parts of a watcher. You need to
-call C<ev_init> at least once before you call this macro, but you can
-call C<ev_TYPE_set> any number of times. You must not, however, call this
-macro on a watcher that is active (it can be pending, however, which is a
-difference to the C<ev_init> macro).
-
-Although some watcher types do not have type-specific arguments
-(e.g. C<ev_prepare>) you still need to call its C<set> macro.
-
-See C<ev_init>, above, for an example.
-
-=item C<ev_TYPE_init> (ev_TYPE *watcher, callback, [args])
-
-This convenience macro rolls both C<ev_init> and C<ev_TYPE_set> macro
-calls into a single call. This is the most convenient method to initialise
-a watcher. The same limitations apply, of course.
-
-Example: Initialise and set an C<ev_io> watcher in one step.
-
-   ev_io_init (&w, my_cb, STDIN_FILENO, EV_READ);
-
-=item C<ev_TYPE_start> (loop, ev_TYPE *watcher)
-
-Starts (activates) the given watcher. Only active watchers will receive
-events. If the watcher is already active nothing will happen.
-
-Example: Start the C<ev_io> watcher that is being abused as example in this
-whole section.
-
-   ev_io_start (EV_DEFAULT_UC, &w);
-
-=item C<ev_TYPE_stop> (loop, ev_TYPE *watcher)
-
-Stops the given watcher if active, and clears the pending status (whether
-the watcher was active or not).
-
-It is possible that stopped watchers are pending - for example,
-non-repeating timers are being stopped when they become pending - but
-calling C<ev_TYPE_stop> ensures that the watcher is neither active nor
-pending. If you want to free or reuse the memory used by the watcher it is
-therefore a good idea to always call its C<ev_TYPE_stop> function.
-
-=item bool ev_is_active (ev_TYPE *watcher)
-
-Returns a true value iff the watcher is active (i.e. it has been started
-and not yet been stopped). As long as a watcher is active you must not modify
-it.
-
-=item bool ev_is_pending (ev_TYPE *watcher)
-
-Returns a true value iff the watcher is pending, (i.e. it has outstanding
-events but its callback has not yet been invoked). As long as a watcher
-is pending (but not active) you must not call an init function on it (but
-C<ev_TYPE_set> is safe), you must not change its priority, and you must
-make sure the watcher is available to libev (e.g. you cannot C<free ()>
-it).
-
-=item callback ev_cb (ev_TYPE *watcher)
-
-Returns the callback currently set on the watcher.
-
-=item ev_cb_set (ev_TYPE *watcher, callback)
-
-Change the callback. You can change the callback at virtually any time
-(modulo threads).
-
-=item ev_set_priority (ev_TYPE *watcher, int priority)
-
-=item int ev_priority (ev_TYPE *watcher)
-
-Set and query the priority of the watcher. The priority is a small
-integer between C<EV_MAXPRI> (default: C<2>) and C<EV_MINPRI>
-(default: C<-2>). Pending watchers with higher priority will be invoked
-before watchers with lower priority, but priority will not keep watchers
-from being executed (except for C<ev_idle> watchers).
-
-If you need to suppress invocation when higher priority events are pending
-you need to look at C<ev_idle> watchers, which provide this functionality.
-
-You I<must not> change the priority of a watcher as long as it is active or
-pending.
-
-Setting a priority outside the range of C<EV_MINPRI> to C<EV_MAXPRI> is
-fine, as long as you do not mind that the priority value you query might
-or might not have been clamped to the valid range.
-
-The default priority used by watchers when no priority has been set is
-always C<0>, which is supposed to not be too high and not be too low :).
-
-See L<WATCHER PRIORITY MODELS>, below, for a more thorough treatment of
-priorities.
-
-=item ev_invoke (loop, ev_TYPE *watcher, int revents)
-
-Invoke the C<watcher> with the given C<loop> and C<revents>. Neither
-C<loop> nor C<revents> need to be valid as long as the watcher callback
-can deal with that fact, as both are simply passed through to the
-callback.
-
-=item int ev_clear_pending (loop, ev_TYPE *watcher)
-
-If the watcher is pending, this function clears its pending status and
-returns its C<revents> bitset (as if its callback was invoked). If the
-watcher isn't pending it does nothing and returns C<0>.
-
-Sometimes it can be useful to "poll" a watcher instead of waiting for its
-callback to be invoked, which can be accomplished with this function.
-
-=item ev_feed_event (loop, ev_TYPE *watcher, int revents)
-
-Feeds the given event set into the event loop, as if the specified event
-had happened for the specified watcher (which must be a pointer to an
-initialised but not necessarily started event watcher). Obviously you must
-not free the watcher as long as it has pending events.
-
-Stopping the watcher, letting libev invoke it, or calling
-C<ev_clear_pending> will clear the pending event, even if the watcher was
-not started in the first place.
-
-See also C<ev_feed_fd_event> and C<ev_feed_signal_event> for related
-functions that do not need a watcher.
-
-=back
-
-See also the L<ASSOCIATING CUSTOM DATA WITH A WATCHER> and L<BUILDING YOUR
-OWN COMPOSITE WATCHERS> idioms.
-
-=head2 WATCHER STATES
-
-There are various watcher states mentioned throughout this manual -
-active, pending and so on. In this section these states and the rules to
-transition between them will be described in more detail - and while these
-rules might look complicated, they usually do "the right thing".
-
-=over 4
-
-=item initialiased
-
-Before a watcher can be registered with the event looop it has to be
-initialised. This can be done with a call to C<ev_TYPE_init>, or calls to
-C<ev_init> followed by the watcher-specific C<ev_TYPE_set> function.
-
-In this state it is simply some block of memory that is suitable for
-use in an event loop. It can be moved around, freed, reused etc. at
-will - as long as you either keep the memory contents intact, or call
-C<ev_TYPE_init> again.
-
-=item started/running/active
-
-Once a watcher has been started with a call to C<ev_TYPE_start> it becomes
-property of the event loop, and is actively waiting for events. While in
-this state it cannot be accessed (except in a few documented ways), moved,
-freed or anything else - the only legal thing is to keep a pointer to it,
-and call libev functions on it that are documented to work on active watchers.
-
-=item pending
-
-If a watcher is active and libev determines that an event it is interested
-in has occurred (such as a timer expiring), it will become pending. It will
-stay in this pending state until either it is stopped or its callback is
-about to be invoked, so it is not normally pending inside the watcher
-callback.
-
-The watcher might or might not be active while it is pending (for example,
-an expired non-repeating timer can be pending but no longer active). If it
-is stopped, it can be freely accessed (e.g. by calling C<ev_TYPE_set>),
-but it is still property of the event loop at this time, so cannot be
-moved, freed or reused. And if it is active the rules described in the
-previous item still apply.
-
-It is also possible to feed an event on a watcher that is not active (e.g.
-via C<ev_feed_event>), in which case it becomes pending without being
-active.
-
-=item stopped
-
-A watcher can be stopped implicitly by libev (in which case it might still
-be pending), or explicitly by calling its C<ev_TYPE_stop> function. The
-latter will clear any pending state the watcher might be in, regardless
-of whether it was active or not, so stopping a watcher explicitly before
-freeing it is often a good idea.
-
-While stopped (and not pending) the watcher is essentially in the
-initialised state, that is, it can be reused, moved, modified in any way
-you wish (but when you trash the memory block, you need to C<ev_TYPE_init>
-it again).
-
-=back
-
-=head2 WATCHER PRIORITY MODELS
-
-Many event loops support I<watcher priorities>, which are usually small
-integers that influence the ordering of event callback invocation
-between watchers in some way, all else being equal.
-
-In libev, Watcher priorities can be set using C<ev_set_priority>. See its
-description for the more technical details such as the actual priority
-range.
-
-There are two common ways how these these priorities are being interpreted
-by event loops:
-
-In the more common lock-out model, higher priorities "lock out" invocation
-of lower priority watchers, which means as long as higher priority
-watchers receive events, lower priority watchers are not being invoked.
-
-The less common only-for-ordering model uses priorities solely to order
-callback invocation within a single event loop iteration: Higher priority
-watchers are invoked before lower priority ones, but they all get invoked
-before polling for new events.
-
-Libev uses the second (only-for-ordering) model for all its watchers
-except for idle watchers (which use the lock-out model).
-
-The rationale behind this is that implementing the lock-out model for
-watchers is not well supported by most kernel interfaces, and most event
-libraries will just poll for the same events again and again as long as
-their callbacks have not been executed, which is very inefficient in the
-common case of one high-priority watcher locking out a mass of lower
-priority ones.
-
-Static (ordering) priorities are most useful when you have two or more
-watchers handling the same resource: a typical usage example is having an
-C<ev_io> watcher to receive data, and an associated C<ev_timer> to handle
-timeouts. Under load, data might be received while the program handles
-other jobs, but since timers normally get invoked first, the timeout
-handler will be executed before checking for data. In that case, giving
-the timer a lower priority than the I/O watcher ensures that I/O will be
-handled first even under adverse conditions (which is usually, but not
-always, what you want).
-
-Since idle watchers use the "lock-out" model, meaning that idle watchers
-will only be executed when no same or higher priority watchers have
-received events, they can be used to implement the "lock-out" model when
-required.
-
-For example, to emulate how many other event libraries handle priorities,
-you can associate an C<ev_idle> watcher to each such watcher, and in
-the normal watcher callback, you just start the idle watcher. The real
-processing is done in the idle watcher callback. This causes libev to
-continuously poll and process kernel event data for the watcher, but when
-the lock-out case is known to be rare (which in turn is rare :), this is
-workable.
-
-Usually, however, the lock-out model implemented that way will perform
-miserably under the type of load it was designed to handle. In that case,
-it might be preferable to stop the real watcher before starting the
-idle watcher, so the kernel will not have to process the event in case
-the actual processing will be delayed for considerable time.
-
-Here is an example of an I/O watcher that should run at a strictly lower
-priority than the default, and which should only process data when no
-other events are pending:
-
-   ev_idle idle; // actual processing watcher
-   ev_io io;     // actual event watcher
-
-   static void
-   io_cb (EV_P_ ev_io *w, int revents)
-   {
-     // stop the I/O watcher, we received the event, but
-     // are not yet ready to handle it.
-     ev_io_stop (EV_A_ w);
-
-     // start the idle watcher to handle the actual event.
-     // it will not be executed as long as other watchers
-     // with the default priority are receiving events.
-     ev_idle_start (EV_A_ &idle);
-   }
-
-   static void
-   idle_cb (EV_P_ ev_idle *w, int revents)
-   {
-     // actual processing
-     read (STDIN_FILENO, ...);
-
-     // have to start the I/O watcher again, as
-     // we have handled the event
-     ev_io_start (EV_P_ &io);
-   }
-
-   // initialisation
-   ev_idle_init (&idle, idle_cb);
-   ev_io_init (&io, io_cb, STDIN_FILENO, EV_READ);
-   ev_io_start (EV_DEFAULT_ &io);
-
-In the "real" world, it might also be beneficial to start a timer, so that
-low-priority connections can not be locked out forever under load. This
-enables your program to keep a lower latency for important connections
-during short periods of high load, while not completely locking out less
-important ones.
-
-
-=head1 WATCHER TYPES
-
-This section describes each watcher in detail, but will not repeat
-information given in the last section. Any initialisation/set macros,
-functions and members specific to the watcher type are explained.
-
-Members are additionally marked with either I<[read-only]>, meaning that,
-while the watcher is active, you can look at the member and expect some
-sensible content, but you must not modify it (you can modify it while the
-watcher is stopped to your hearts content), or I<[read-write]>, which
-means you can expect it to have some sensible content while the watcher
-is active, but you can also modify it. Modifying it may not do something
-sensible or take immediate effect (or do anything at all), but libev will
-not crash or malfunction in any way.
-
-
-=head2 C<ev_io> - is this file descriptor readable or writable?
-
-I/O watchers check whether a file descriptor is readable or writable
-in each iteration of the event loop, or, more precisely, when reading
-would not block the process and writing would at least be able to write
-some data. This behaviour is called level-triggering because you keep
-receiving events as long as the condition persists. Remember you can stop
-the watcher if you don't want to act on the event and neither want to
-receive future events.
-
-In general you can register as many read and/or write event watchers per
-fd as you want (as long as you don't confuse yourself). Setting all file
-descriptors to non-blocking mode is also usually a good idea (but not
-required if you know what you are doing).
-
-Another thing you have to watch out for is that it is quite easy to
-receive "spurious" readiness notifications, that is, your callback might
-be called with C<EV_READ> but a subsequent C<read>(2) will actually block
-because there is no data. It is very easy to get into this situation even
-with a relatively standard program structure. Thus it is best to always
-use non-blocking I/O: An extra C<read>(2) returning C<EAGAIN> is far
-preferable to a program hanging until some data arrives.
-
-If you cannot run the fd in non-blocking mode (for example you should
-not play around with an Xlib connection), then you have to separately
-re-test whether a file descriptor is really ready with a known-to-be good
-interface such as poll (fortunately in the case of Xlib, it already does
-this on its own, so its quite safe to use). Some people additionally
-use C<SIGALRM> and an interval timer, just to be sure you won't block
-indefinitely.
-
-But really, best use non-blocking mode.
-
-=head3 The special problem of disappearing file descriptors
-
-Some backends (e.g. kqueue, epoll) need to be told about closing a file
-descriptor (either due to calling C<close> explicitly or any other means,
-such as C<dup2>). The reason is that you register interest in some file
-descriptor, but when it goes away, the operating system will silently drop
-this interest. If another file descriptor with the same number then is
-registered with libev, there is no efficient way to see that this is, in
-fact, a different file descriptor.
-
-To avoid having to explicitly tell libev about such cases, libev follows
-the following policy:  Each time C<ev_io_set> is being called, libev
-will assume that this is potentially a new file descriptor, otherwise
-it is assumed that the file descriptor stays the same. That means that
-you I<have> to call C<ev_io_set> (or C<ev_io_init>) when you change the
-descriptor even if the file descriptor number itself did not change.
-
-This is how one would do it normally anyway, the important point is that
-the libev application should not optimise around libev but should leave
-optimisations to libev.
-
-=head3 The special problem of dup'ed file descriptors
-
-Some backends (e.g. epoll), cannot register events for file descriptors,
-but only events for the underlying file descriptions. That means when you
-have C<dup ()>'ed file descriptors or weirder constellations, and register
-events for them, only one file descriptor might actually receive events.
-
-There is no workaround possible except not registering events
-for potentially C<dup ()>'ed file descriptors, or to resort to
-C<EVBACKEND_SELECT> or C<EVBACKEND_POLL>.
-
-=head3 The special problem of files
-
-Many people try to use C<select> (or libev) on file descriptors
-representing files, and expect it to become ready when their program
-doesn't block on disk accesses (which can take a long time on their own).
-
-However, this cannot ever work in the "expected" way - you get a readiness
-notification as soon as the kernel knows whether and how much data is
-there, and in the case of open files, that's always the case, so you
-always get a readiness notification instantly, and your read (or possibly
-write) will still block on the disk I/O.
-
-Another way to view it is that in the case of sockets, pipes, character
-devices and so on, there is another party (the sender) that delivers data
-on its own, but in the case of files, there is no such thing: the disk
-will not send data on its own, simply because it doesn't know what you
-wish to read - you would first have to request some data.
-
-Since files are typically not-so-well supported by advanced notification
-mechanism, libev tries hard to emulate POSIX behaviour with respect
-to files, even though you should not use it. The reason for this is
-convenience: sometimes you want to watch STDIN or STDOUT, which is
-usually a tty, often a pipe, but also sometimes files or special devices
-(for example, C<epoll> on Linux works with F</dev/random> but not with
-F</dev/urandom>), and even though the file might better be served with
-asynchronous I/O instead of with non-blocking I/O, it is still useful when
-it "just works" instead of freezing.
-
-So avoid file descriptors pointing to files when you know it (e.g. use
-libeio), but use them when it is convenient, e.g. for STDIN/STDOUT, or
-when you rarely read from a file instead of from a socket, and want to
-reuse the same code path.
-
-=head3 The special problem of fork
-
-Some backends (epoll, kqueue) do not support C<fork ()> at all or exhibit
-useless behaviour. Libev fully supports fork, but needs to be told about
-it in the child if you want to continue to use it in the child.
-
-To support fork in your child processes, you have to call C<ev_loop_fork
-()> after a fork in the child, enable C<EVFLAG_FORKCHECK>, or resort to
-C<EVBACKEND_SELECT> or C<EVBACKEND_POLL>.
-
-=head3 The special problem of SIGPIPE
-
-While not really specific to libev, it is easy to forget about C<SIGPIPE>:
-when writing to a pipe whose other end has been closed, your program gets
-sent a SIGPIPE, which, by default, aborts your program. For most programs
-this is sensible behaviour, for daemons, this is usually undesirable.
-
-So when you encounter spurious, unexplained daemon exits, make sure you
-ignore SIGPIPE (and maybe make sure you log the exit status of your daemon
-somewhere, as that would have given you a big clue).
-
-=head3 The special problem of accept()ing when you can't
-
-Many implementations of the POSIX C<accept> function (for example,
-found in post-2004 Linux) have the peculiar behaviour of not removing a
-connection from the pending queue in all error cases.
-
-For example, larger servers often run out of file descriptors (because
-of resource limits), causing C<accept> to fail with C<ENFILE> but not
-rejecting the connection, leading to libev signalling readiness on
-the next iteration again (the connection still exists after all), and
-typically causing the program to loop at 100% CPU usage.
-
-Unfortunately, the set of errors that cause this issue differs between
-operating systems, there is usually little the app can do to remedy the
-situation, and no known thread-safe method of removing the connection to
-cope with overload is known (to me).
-
-One of the easiest ways to handle this situation is to just ignore it
-- when the program encounters an overload, it will just loop until the
-situation is over. While this is a form of busy waiting, no OS offers an
-event-based way to handle this situation, so it's the best one can do.
-
-A better way to handle the situation is to log any errors other than
-C<EAGAIN> and C<EWOULDBLOCK>, making sure not to flood the log with such
-messages, and continue as usual, which at least gives the user an idea of
-what could be wrong ("raise the ulimit!"). For extra points one could stop
-the C<ev_io> watcher on the listening fd "for a while", which reduces CPU
-usage.
-
-If your program is single-threaded, then you could also keep a dummy file
-descriptor for overload situations (e.g. by opening F</dev/null>), and
-when you run into C<ENFILE> or C<EMFILE>, close it, run C<accept>,
-close that fd, and create a new dummy fd. This will gracefully refuse
-clients under typical overload conditions.
-
-The last way to handle it is to simply log the error and C<exit>, as
-is often done with C<malloc> failures, but this results in an easy
-opportunity for a DoS attack.
-
-=head3 Watcher-Specific Functions
-
-=over 4
-
-=item ev_io_init (ev_io *, callback, int fd, int events)
-
-=item ev_io_set (ev_io *, int fd, int events)
-
-Configures an C<ev_io> watcher. The C<fd> is the file descriptor to
-receive events for and C<events> is either C<EV_READ>, C<EV_WRITE> or
-C<EV_READ | EV_WRITE>, to express the desire to receive the given events.
-
-=item int fd [read-only]
-
-The file descriptor being watched.
-
-=item int events [read-only]
-
-The events being watched.
-
-=back
-
-=head3 Examples
-
-Example: Call C<stdin_readable_cb> when STDIN_FILENO has become, well
-readable, but only once. Since it is likely line-buffered, you could
-attempt to read a whole line in the callback.
-
-   static void
-   stdin_readable_cb (struct ev_loop *loop, ev_io *w, int revents)
-   {
-      ev_io_stop (loop, w);
-     .. read from stdin here (or from w->fd) and handle any I/O errors
-   }
-
-   ...
-   struct ev_loop *loop = ev_default_init (0);
-   ev_io stdin_readable;
-   ev_io_init (&stdin_readable, stdin_readable_cb, STDIN_FILENO, EV_READ);
-   ev_io_start (loop, &stdin_readable);
-   ev_run (loop, 0);
-
-
-=head2 C<ev_timer> - relative and optionally repeating timeouts
-
-Timer watchers are simple relative timers that generate an event after a
-given time, and optionally repeating in regular intervals after that.
-
-The timers are based on real time, that is, if you register an event that
-times out after an hour and you reset your system clock to January last
-year, it will still time out after (roughly) one hour. "Roughly" because
-detecting time jumps is hard, and some inaccuracies are unavoidable (the
-monotonic clock option helps a lot here).
-
-The callback is guaranteed to be invoked only I<after> its timeout has
-passed (not I<at>, so on systems with very low-resolution clocks this
-might introduce a small delay). If multiple timers become ready during the
-same loop iteration then the ones with earlier time-out values are invoked
-before ones of the same priority with later time-out values (but this is
-no longer true when a callback calls C<ev_run> recursively).
-
-=head3 Be smart about timeouts
-
-Many real-world problems involve some kind of timeout, usually for error
-recovery. A typical example is an HTTP request - if the other side hangs,
-you want to raise some error after a while.
-
-What follows are some ways to handle this problem, from obvious and
-inefficient to smart and efficient.
-
-In the following, a 60 second activity timeout is assumed - a timeout that
-gets reset to 60 seconds each time there is activity (e.g. each time some
-data or other life sign was received).
-
-=over 4
-
-=item 1. Use a timer and stop, reinitialise and start it on activity.
-
-This is the most obvious, but not the most simple way: In the beginning,
-start the watcher:
-
-   ev_timer_init (timer, callback, 60., 0.);
-   ev_timer_start (loop, timer);
-
-Then, each time there is some activity, C<ev_timer_stop> it, initialise it
-and start it again:
-
-   ev_timer_stop (loop, timer);
-   ev_timer_set (timer, 60., 0.);
-   ev_timer_start (loop, timer);
-
-This is relatively simple to implement, but means that each time there is
-some activity, libev will first have to remove the timer from its internal
-data structure and then add it again. Libev tries to be fast, but it's
-still not a constant-time operation.
-
-=item 2. Use a timer and re-start it with C<ev_timer_again> inactivity.
-
-This is the easiest way, and involves using C<ev_timer_again> instead of
-C<ev_timer_start>.
-
-To implement this, configure an C<ev_timer> with a C<repeat> value
-of C<60> and then call C<ev_timer_again> at start and each time you
-successfully read or write some data. If you go into an idle state where
-you do not expect data to travel on the socket, you can C<ev_timer_stop>
-the timer, and C<ev_timer_again> will automatically restart it if need be.
-
-That means you can ignore both the C<ev_timer_start> function and the
-C<after> argument to C<ev_timer_set>, and only ever use the C<repeat>
-member and C<ev_timer_again>.
-
-At start:
-
-   ev_init (timer, callback);
-   timer->repeat = 60.;
-   ev_timer_again (loop, timer);
-
-Each time there is some activity:
-
-   ev_timer_again (loop, timer);
-
-It is even possible to change the time-out on the fly, regardless of
-whether the watcher is active or not:
-
-   timer->repeat = 30.;
-   ev_timer_again (loop, timer);
-
-This is slightly more efficient then stopping/starting the timer each time
-you want to modify its timeout value, as libev does not have to completely
-remove and re-insert the timer from/into its internal data structure.
-
-It is, however, even simpler than the "obvious" way to do it.
-
-=item 3. Let the timer time out, but then re-arm it as required.
-
-This method is more tricky, but usually most efficient: Most timeouts are
-relatively long compared to the intervals between other activity - in
-our example, within 60 seconds, there are usually many I/O events with
-associated activity resets.
-
-In this case, it would be more efficient to leave the C<ev_timer> alone,
-but remember the time of last activity, and check for a real timeout only
-within the callback:
-
-   ev_tstamp last_activity; // time of last activity
-
-   static void
-   callback (EV_P_ ev_timer *w, int revents)
-   {
-     ev_tstamp now     = ev_now (EV_A);
-     ev_tstamp timeout = last_activity + 60.;
-
-     // if last_activity + 60. is older than now, we did time out
-     if (timeout < now)
-       {
-         // timeout occurred, take action
-       }
-     else
-       {
-         // callback was invoked, but there was some activity, re-arm
-         // the watcher to fire in last_activity + 60, which is
-         // guaranteed to be in the future, so "again" is positive:
-         w->repeat = timeout - now;
-         ev_timer_again (EV_A_ w);
-       }
-   }
-
-To summarise the callback: first calculate the real timeout (defined
-as "60 seconds after the last activity"), then check if that time has
-been reached, which means something I<did>, in fact, time out. Otherwise
-the callback was invoked too early (C<timeout> is in the future), so
-re-schedule the timer to fire at that future time, to see if maybe we have
-a timeout then.
-
-Note how C<ev_timer_again> is used, taking advantage of the
-C<ev_timer_again> optimisation when the timer is already running.
-
-This scheme causes more callback invocations (about one every 60 seconds
-minus half the average time between activity), but virtually no calls to
-libev to change the timeout.
-
-To start the timer, simply initialise the watcher and set C<last_activity>
-to the current time (meaning we just have some activity :), then call the
-callback, which will "do the right thing" and start the timer:
-
-   ev_init (timer, callback);
-   last_activity = ev_now (loop);
-   callback (loop, timer, EV_TIMER);
-
-And when there is some activity, simply store the current time in
-C<last_activity>, no libev calls at all:
-
-   last_activity = ev_now (loop);
-
-This technique is slightly more complex, but in most cases where the
-time-out is unlikely to be triggered, much more efficient.
-
-Changing the timeout is trivial as well (if it isn't hard-coded in the
-callback :) - just change the timeout and invoke the callback, which will
-fix things for you.
-
-=item 4. Wee, just use a double-linked list for your timeouts.
-
-If there is not one request, but many thousands (millions...), all
-employing some kind of timeout with the same timeout value, then one can
-do even better:
-
-When starting the timeout, calculate the timeout value and put the timeout
-at the I<end> of the list.
-
-Then use an C<ev_timer> to fire when the timeout at the I<beginning> of
-the list is expected to fire (for example, using the technique #3).
-
-When there is some activity, remove the timer from the list, recalculate
-the timeout, append it to the end of the list again, and make sure to
-update the C<ev_timer> if it was taken from the beginning of the list.
-
-This way, one can manage an unlimited number of timeouts in O(1) time for
-starting, stopping and updating the timers, at the expense of a major
-complication, and having to use a constant timeout. The constant timeout
-ensures that the list stays sorted.
-
-=back
-
-So which method the best?
-
-Method #2 is a simple no-brain-required solution that is adequate in most
-situations. Method #3 requires a bit more thinking, but handles many cases
-better, and isn't very complicated either. In most case, choosing either
-one is fine, with #3 being better in typical situations.
-
-Method #1 is almost always a bad idea, and buys you nothing. Method #4 is
-rather complicated, but extremely efficient, something that really pays
-off after the first million or so of active timers, i.e. it's usually
-overkill :)
-
-=head3 The special problem of time updates
-
-Establishing the current time is a costly operation (it usually takes at
-least two system calls): EV therefore updates its idea of the current
-time only before and after C<ev_run> collects new events, which causes a
-growing difference between C<ev_now ()> and C<ev_time ()> when handling
-lots of events in one iteration.
-
-The relative timeouts are calculated relative to the C<ev_now ()>
-time. This is usually the right thing as this timestamp refers to the time
-of the event triggering whatever timeout you are modifying/starting. If
-you suspect event processing to be delayed and you I<need> to base the
-timeout on the current time, use something like this to adjust for this:
-
-   ev_timer_set (&timer, after + ev_now () - ev_time (), 0.);
-
-If the event loop is suspended for a long time, you can also force an
-update of the time returned by C<ev_now ()> by calling C<ev_now_update
-()>.
-
-=head3 The special problems of suspended animation
-
-When you leave the server world it is quite customary to hit machines that
-can suspend/hibernate - what happens to the clocks during such a suspend?
-
-Some quick tests made with a Linux 2.6.28 indicate that a suspend freezes
-all processes, while the clocks (C<times>, C<CLOCK_MONOTONIC>) continue
-to run until the system is suspended, but they will not advance while the
-system is suspended. That means, on resume, it will be as if the program
-was frozen for a few seconds, but the suspend time will not be counted
-towards C<ev_timer> when a monotonic clock source is used. The real time
-clock advanced as expected, but if it is used as sole clocksource, then a
-long suspend would be detected as a time jump by libev, and timers would
-be adjusted accordingly.
-
-I would not be surprised to see different behaviour in different between
-operating systems, OS versions or even different hardware.
-
-The other form of suspend (job control, or sending a SIGSTOP) will see a
-time jump in the monotonic clocks and the realtime clock. If the program
-is suspended for a very long time, and monotonic clock sources are in use,
-then you can expect C<ev_timer>s to expire as the full suspension time
-will be counted towards the timers. When no monotonic clock source is in
-use, then libev will again assume a timejump and adjust accordingly.
-
-It might be beneficial for this latter case to call C<ev_suspend>
-and C<ev_resume> in code that handles C<SIGTSTP>, to at least get
-deterministic behaviour in this case (you can do nothing against
-C<SIGSTOP>).
-
-=head3 Watcher-Specific Functions and Data Members
-
-=over 4
-
-=item ev_timer_init (ev_timer *, callback, ev_tstamp after, ev_tstamp repeat)
-
-=item ev_timer_set (ev_timer *, ev_tstamp after, ev_tstamp repeat)
-
-Configure the timer to trigger after C<after> seconds. If C<repeat>
-is C<0.>, then it will automatically be stopped once the timeout is
-reached. If it is positive, then the timer will automatically be
-configured to trigger again C<repeat> seconds later, again, and again,
-until stopped manually.
-
-The timer itself will do a best-effort at avoiding drift, that is, if
-you configure a timer to trigger every 10 seconds, then it will normally
-trigger at exactly 10 second intervals. If, however, your program cannot
-keep up with the timer (because it takes longer than those 10 seconds to
-do stuff) the timer will not fire more than once per event loop iteration.
-
-=item ev_timer_again (loop, ev_timer *)
-
-This will act as if the timer timed out and restart it again if it is
-repeating. The exact semantics are:
-
-If the timer is pending, its pending status is cleared.
-
-If the timer is started but non-repeating, stop it (as if it timed out).
-
-If the timer is repeating, either start it if necessary (with the
-C<repeat> value), or reset the running timer to the C<repeat> value.
-
-This sounds a bit complicated, see L<Be smart about timeouts>, above, for a
-usage example.
-
-=item ev_tstamp ev_timer_remaining (loop, ev_timer *)
-
-Returns the remaining time until a timer fires. If the timer is active,
-then this time is relative to the current event loop time, otherwise it's
-the timeout value currently configured.
-
-That is, after an C<ev_timer_set (w, 5, 7)>, C<ev_timer_remaining> returns
-C<5>. When the timer is started and one second passes, C<ev_timer_remaining>
-will return C<4>. When the timer expires and is restarted, it will return
-roughly C<7> (likely slightly less as callback invocation takes some time,
-too), and so on.
-
-=item ev_tstamp repeat [read-write]
-
-The current C<repeat> value. Will be used each time the watcher times out
-or C<ev_timer_again> is called, and determines the next timeout (if any),
-which is also when any modifications are taken into account.
-
-=back
-
-=head3 Examples
-
-Example: Create a timer that fires after 60 seconds.
-
-   static void
-   one_minute_cb (struct ev_loop *loop, ev_timer *w, int revents)
-   {
-     .. one minute over, w is actually stopped right here
-   }
-
-   ev_timer mytimer;
-   ev_timer_init (&mytimer, one_minute_cb, 60., 0.);
-   ev_timer_start (loop, &mytimer);
-
-Example: Create a timeout timer that times out after 10 seconds of
-inactivity.
-
-   static void
-   timeout_cb (struct ev_loop *loop, ev_timer *w, int revents)
-   {
-     .. ten seconds without any activity
-   }
-
-   ev_timer mytimer;
-   ev_timer_init (&mytimer, timeout_cb, 0., 10.); /* note, only repeat used */
-   ev_timer_again (&mytimer); /* start timer */
-   ev_run (loop, 0);
-
-   // and in some piece of code that gets executed on any "activity":
-   // reset the timeout to start ticking again at 10 seconds
-   ev_timer_again (&mytimer);
-
-
-=head2 C<ev_periodic> - to cron or not to cron?
-
-Periodic watchers are also timers of a kind, but they are very versatile
-(and unfortunately a bit complex).
-
-Unlike C<ev_timer>, periodic watchers are not based on real time (or
-relative time, the physical time that passes) but on wall clock time
-(absolute time, the thing you can read on your calender or clock). The
-difference is that wall clock time can run faster or slower than real
-time, and time jumps are not uncommon (e.g. when you adjust your
-wrist-watch).
-
-You can tell a periodic watcher to trigger after some specific point
-in time: for example, if you tell a periodic watcher to trigger "in 10
-seconds" (by specifying e.g. C<ev_now () + 10.>, that is, an absolute time
-not a delay) and then reset your system clock to January of the previous
-year, then it will take a year or more to trigger the event (unlike an
-C<ev_timer>, which would still trigger roughly 10 seconds after starting
-it, as it uses a relative timeout).
-
-C<ev_periodic> watchers can also be used to implement vastly more complex
-timers, such as triggering an event on each "midnight, local time", or
-other complicated rules. This cannot be done with C<ev_timer> watchers, as
-those cannot react to time jumps.
-
-As with timers, the callback is guaranteed to be invoked only when the
-point in time where it is supposed to trigger has passed. If multiple
-timers become ready during the same loop iteration then the ones with
-earlier time-out values are invoked before ones with later time-out values
-(but this is no longer true when a callback calls C<ev_run> recursively).
-
-=head3 Watcher-Specific Functions and Data Members
-
-=over 4
-
-=item ev_periodic_init (ev_periodic *, callback, ev_tstamp offset, ev_tstamp interval, reschedule_cb)
-
-=item ev_periodic_set (ev_periodic *, ev_tstamp offset, ev_tstamp interval, reschedule_cb)
-
-Lots of arguments, let's sort it out... There are basically three modes of
-operation, and we will explain them from simplest to most complex:
-
-=over 4
-
-=item * absolute timer (offset = absolute time, interval = 0, reschedule_cb = 0)
-
-In this configuration the watcher triggers an event after the wall clock
-time C<offset> has passed. It will not repeat and will not adjust when a
-time jump occurs, that is, if it is to be run at January 1st 2011 then it
-will be stopped and invoked when the system clock reaches or surpasses
-this point in time.
-
-=item * repeating interval timer (offset = offset within interval, interval > 0, reschedule_cb = 0)
-
-In this mode the watcher will always be scheduled to time out at the next
-C<offset + N * interval> time (for some integer N, which can also be
-negative) and then repeat, regardless of any time jumps. The C<offset>
-argument is merely an offset into the C<interval> periods.
-
-This can be used to create timers that do not drift with respect to the
-system clock, for example, here is an C<ev_periodic> that triggers each
-hour, on the hour (with respect to UTC):
-
-   ev_periodic_set (&periodic, 0., 3600., 0);
-
-This doesn't mean there will always be 3600 seconds in between triggers,
-but only that the callback will be called when the system time shows a
-full hour (UTC), or more correctly, when the system time is evenly divisible
-by 3600.
-
-Another way to think about it (for the mathematically inclined) is that
-C<ev_periodic> will try to run the callback in this mode at the next possible
-time where C<time = offset (mod interval)>, regardless of any time jumps.
-
-For numerical stability it is preferable that the C<offset> value is near
-C<ev_now ()> (the current time), but there is no range requirement for
-this value, and in fact is often specified as zero.
-
-Note also that there is an upper limit to how often a timer can fire (CPU
-speed for example), so if C<interval> is very small then timing stability
-will of course deteriorate. Libev itself tries to be exact to be about one
-millisecond (if the OS supports it and the machine is fast enough).
-
-=item * manual reschedule mode (offset ignored, interval ignored, reschedule_cb = callback)
-
-In this mode the values for C<interval> and C<offset> are both being
-ignored. Instead, each time the periodic watcher gets scheduled, the
-reschedule callback will be called with the watcher as first, and the
-current time as second argument.
-
-NOTE: I<This callback MUST NOT stop or destroy any periodic watcher, ever,
-or make ANY other event loop modifications whatsoever, unless explicitly
-allowed by documentation here>.
-
-If you need to stop it, return C<now + 1e30> (or so, fudge fudge) and stop
-it afterwards (e.g. by starting an C<ev_prepare> watcher, which is the
-only event loop modification you are allowed to do).
-
-The callback prototype is C<ev_tstamp (*reschedule_cb)(ev_periodic
-*w, ev_tstamp now)>, e.g.:
-
-   static ev_tstamp
-   my_rescheduler (ev_periodic *w, ev_tstamp now)
-   {
-     return now + 60.;
-   }
-
-It must return the next time to trigger, based on the passed time value
-(that is, the lowest time value larger than to the second argument). It
-will usually be called just before the callback will be triggered, but
-might be called at other times, too.
-
-NOTE: I<< This callback must always return a time that is higher than or
-equal to the passed C<now> value >>.
-
-This can be used to create very complex timers, such as a timer that
-triggers on "next midnight, local time". To do this, you would calculate the
-next midnight after C<now> and return the timestamp value for this. How
-you do this is, again, up to you (but it is not trivial, which is the main
-reason I omitted it as an example).
-
-=back
-
-=item ev_periodic_again (loop, ev_periodic *)
-
-Simply stops and restarts the periodic watcher again. This is only useful
-when you changed some parameters or the reschedule callback would return
-a different time than the last time it was called (e.g. in a crond like
-program when the crontabs have changed).
-
-=item ev_tstamp ev_periodic_at (ev_periodic *)
-
-When active, returns the absolute time that the watcher is supposed
-to trigger next. This is not the same as the C<offset> argument to
-C<ev_periodic_set>, but indeed works even in interval and manual
-rescheduling modes.
-
-=item ev_tstamp offset [read-write]
-
-When repeating, this contains the offset value, otherwise this is the
-absolute point in time (the C<offset> value passed to C<ev_periodic_set>,
-although libev might modify this value for better numerical stability).
-
-Can be modified any time, but changes only take effect when the periodic
-timer fires or C<ev_periodic_again> is being called.
-
-=item ev_tstamp interval [read-write]
-
-The current interval value. Can be modified any time, but changes only
-take effect when the periodic timer fires or C<ev_periodic_again> is being
-called.
-
-=item ev_tstamp (*reschedule_cb)(ev_periodic *w, ev_tstamp now) [read-write]
-
-The current reschedule callback, or C<0>, if this functionality is
-switched off. Can be changed any time, but changes only take effect when
-the periodic timer fires or C<ev_periodic_again> is being called.
-
-=back
-
-=head3 Examples
-
-Example: Call a callback every hour, or, more precisely, whenever the
-system time is divisible by 3600. The callback invocation times have
-potentially a lot of jitter, but good long-term stability.
-
-   static void
-   clock_cb (struct ev_loop *loop, ev_periodic *w, int revents)
-   {
-     ... its now a full hour (UTC, or TAI or whatever your clock follows)
-   }
-
-   ev_periodic hourly_tick;
-   ev_periodic_init (&hourly_tick, clock_cb, 0., 3600., 0);
-   ev_periodic_start (loop, &hourly_tick);
-
-Example: The same as above, but use a reschedule callback to do it:
-
-   #include <math.h>
-
-   static ev_tstamp
-   my_scheduler_cb (ev_periodic *w, ev_tstamp now)
-   {
-     return now + (3600. - fmod (now, 3600.));
-   }
-
-   ev_periodic_init (&hourly_tick, clock_cb, 0., 0., my_scheduler_cb);
-
-Example: Call a callback every hour, starting now:
-
-   ev_periodic hourly_tick;
-   ev_periodic_init (&hourly_tick, clock_cb,
-                     fmod (ev_now (loop), 3600.), 3600., 0);
-   ev_periodic_start (loop, &hourly_tick);
-  
-
-=head2 C<ev_signal> - signal me when a signal gets signalled!
-
-Signal watchers will trigger an event when the process receives a specific
-signal one or more times. Even though signals are very asynchronous, libev
-will try its best to deliver signals synchronously, i.e. as part of the
-normal event processing, like any other event.
-
-If you want signals to be delivered truly asynchronously, just use
-C<sigaction> as you would do without libev and forget about sharing
-the signal. You can even use C<ev_async> from a signal handler to
-synchronously wake up an event loop.
-
-You can configure as many watchers as you like for the same signal, but
-only within the same loop, i.e. you can watch for C<SIGINT> in your
-default loop and for C<SIGIO> in another loop, but you cannot watch for
-C<SIGINT> in both the default loop and another loop at the same time. At
-the moment, C<SIGCHLD> is permanently tied to the default loop.
-
-When the first watcher gets started will libev actually register something
-with the kernel (thus it coexists with your own signal handlers as long as
-you don't register any with libev for the same signal).
-
-If possible and supported, libev will install its handlers with
-C<SA_RESTART> (or equivalent) behaviour enabled, so system calls should
-not be unduly interrupted. If you have a problem with system calls getting
-interrupted by signals you can block all signals in an C<ev_check> watcher
-and unblock them in an C<ev_prepare> watcher.
-
-=head3 The special problem of inheritance over fork/execve/pthread_create
-
-Both the signal mask (C<sigprocmask>) and the signal disposition
-(C<sigaction>) are unspecified after starting a signal watcher (and after
-stopping it again), that is, libev might or might not block the signal,
-and might or might not set or restore the installed signal handler (but
-see C<EVFLAG_NOSIGMASK>).
-
-While this does not matter for the signal disposition (libev never
-sets signals to C<SIG_IGN>, so handlers will be reset to C<SIG_DFL> on
-C<execve>), this matters for the signal mask: many programs do not expect
-certain signals to be blocked.
-
-This means that before calling C<exec> (from the child) you should reset
-the signal mask to whatever "default" you expect (all clear is a good
-choice usually).
-
-The simplest way to ensure that the signal mask is reset in the child is
-to install a fork handler with C<pthread_atfork> that resets it. That will
-catch fork calls done by libraries (such as the libc) as well.
-
-In current versions of libev, the signal will not be blocked indefinitely
-unless you use the C<signalfd> API (C<EV_SIGNALFD>). While this reduces
-the window of opportunity for problems, it will not go away, as libev
-I<has> to modify the signal mask, at least temporarily.
-
-So I can't stress this enough: I<If you do not reset your signal mask when
-you expect it to be empty, you have a race condition in your code>. This
-is not a libev-specific thing, this is true for most event libraries.
-
-=head3 The special problem of threads signal handling
-
-POSIX threads has problematic signal handling semantics, specifically,
-a lot of functionality (sigfd, sigwait etc.) only really works if all
-threads in a process block signals, which is hard to achieve.
-
-When you want to use sigwait (or mix libev signal handling with your own
-for the same signals), you can tackle this problem by globally blocking
-all signals before creating any threads (or creating them with a fully set
-sigprocmask) and also specifying the C<EVFLAG_NOSIGMASK> when creating
-loops. Then designate one thread as "signal receiver thread" which handles
-these signals. You can pass on any signals that libev might be interested
-in by calling C<ev_feed_signal>.
-
-=head3 Watcher-Specific Functions and Data Members
-
-=over 4
-
-=item ev_signal_init (ev_signal *, callback, int signum)
-
-=item ev_signal_set (ev_signal *, int signum)
-
-Configures the watcher to trigger on the given signal number (usually one
-of the C<SIGxxx> constants).
-
-=item int signum [read-only]
-
-The signal the watcher watches out for.
-
-=back
-
-=head3 Examples
-
-Example: Try to exit cleanly on SIGINT.
-
-   static void
-   sigint_cb (struct ev_loop *loop, ev_signal *w, int revents)
-   {
-     ev_break (loop, EVBREAK_ALL);
-   }
-
-   ev_signal signal_watcher;
-   ev_signal_init (&signal_watcher, sigint_cb, SIGINT);
-   ev_signal_start (loop, &signal_watcher);
-
-
-=head2 C<ev_child> - watch out for process status changes
-
-Child watchers trigger when your process receives a SIGCHLD in response to
-some child status changes (most typically when a child of yours dies or
-exits). It is permissible to install a child watcher I<after> the child
-has been forked (which implies it might have already exited), as long
-as the event loop isn't entered (or is continued from a watcher), i.e.,
-forking and then immediately registering a watcher for the child is fine,
-but forking and registering a watcher a few event loop iterations later or
-in the next callback invocation is not.
-
-Only the default event loop is capable of handling signals, and therefore
-you can only register child watchers in the default event loop.
-
-Due to some design glitches inside libev, child watchers will always be
-handled at maximum priority (their priority is set to C<EV_MAXPRI> by
-libev)
-
-=head3 Process Interaction
-
-Libev grabs C<SIGCHLD> as soon as the default event loop is
-initialised. This is necessary to guarantee proper behaviour even if the
-first child watcher is started after the child exits. The occurrence
-of C<SIGCHLD> is recorded asynchronously, but child reaping is done
-synchronously as part of the event loop processing. Libev always reaps all
-children, even ones not watched.
-
-=head3 Overriding the Built-In Processing
-
-Libev offers no special support for overriding the built-in child
-processing, but if your application collides with libev's default child
-handler, you can override it easily by installing your own handler for
-C<SIGCHLD> after initialising the default loop, and making sure the
-default loop never gets destroyed. You are encouraged, however, to use an
-event-based approach to child reaping and thus use libev's support for
-that, so other libev users can use C<ev_child> watchers freely.
-
-=head3 Stopping the Child Watcher
-
-Currently, the child watcher never gets stopped, even when the
-child terminates, so normally one needs to stop the watcher in the
-callback. Future versions of libev might stop the watcher automatically
-when a child exit is detected (calling C<ev_child_stop> twice is not a
-problem).
-
-=head3 Watcher-Specific Functions and Data Members
-
-=over 4
-
-=item ev_child_init (ev_child *, callback, int pid, int trace)
-
-=item ev_child_set (ev_child *, int pid, int trace)
-
-Configures the watcher to wait for status changes of process C<pid> (or
-I<any> process if C<pid> is specified as C<0>). The callback can look
-at the C<rstatus> member of the C<ev_child> watcher structure to see
-the status word (use the macros from C<sys/wait.h> and see your systems
-C<waitpid> documentation). The C<rpid> member contains the pid of the
-process causing the status change. C<trace> must be either C<0> (only
-activate the watcher when the process terminates) or C<1> (additionally
-activate the watcher when the process is stopped or continued).
-
-=item int pid [read-only]
-
-The process id this watcher watches out for, or C<0>, meaning any process id.
-
-=item int rpid [read-write]
-
-The process id that detected a status change.
-
-=item int rstatus [read-write]
-
-The process exit/trace status caused by C<rpid> (see your systems
-C<waitpid> and C<sys/wait.h> documentation for details).
-
-=back
-
-=head3 Examples
-
-Example: C<fork()> a new process and install a child handler to wait for
-its completion.
-
-   ev_child cw;
-
-   static void
-   child_cb (EV_P_ ev_child *w, int revents)
-   {
-     ev_child_stop (EV_A_ w);
-     printf ("process %d exited with status %x\n", w->rpid, w->rstatus);
-   }
-
-   pid_t pid = fork ();
-
-   if (pid < 0)
-     // error
-   else if (pid == 0)
-     {
-       // the forked child executes here
-       exit (1);
-     }
-   else
-     {
-       ev_child_init (&cw, child_cb, pid, 0);
-       ev_child_start (EV_DEFAULT_ &cw);
-     }
-
-
-=head2 C<ev_stat> - did the file attributes just change?
-
-This watches a file system path for attribute changes. That is, it calls
-C<stat> on that path in regular intervals (or when the OS says it changed)
-and sees if it changed compared to the last time, invoking the callback if
-it did.
-
-The path does not need to exist: changing from "path exists" to "path does
-not exist" is a status change like any other. The condition "path does not
-exist" (or more correctly "path cannot be stat'ed") is signified by the
-C<st_nlink> field being zero (which is otherwise always forced to be at
-least one) and all the other fields of the stat buffer having unspecified
-contents.
-
-The path I<must not> end in a slash or contain special components such as
-C<.> or C<..>. The path I<should> be absolute: If it is relative and
-your working directory changes, then the behaviour is undefined.
-
-Since there is no portable change notification interface available, the
-portable implementation simply calls C<stat(2)> regularly on the path
-to see if it changed somehow. You can specify a recommended polling
-interval for this case. If you specify a polling interval of C<0> (highly
-recommended!) then a I<suitable, unspecified default> value will be used
-(which you can expect to be around five seconds, although this might
-change dynamically). Libev will also impose a minimum interval which is
-currently around C<0.1>, but that's usually overkill.
-
-This watcher type is not meant for massive numbers of stat watchers,
-as even with OS-supported change notifications, this can be
-resource-intensive.
-
-At the time of this writing, the only OS-specific interface implemented
-is the Linux inotify interface (implementing kqueue support is left as an
-exercise for the reader. Note, however, that the author sees no way of
-implementing C<ev_stat> semantics with kqueue, except as a hint).
-
-=head3 ABI Issues (Largefile Support)
-
-Libev by default (unless the user overrides this) uses the default
-compilation environment, which means that on systems with large file
-support disabled by default, you get the 32 bit version of the stat
-structure. When using the library from programs that change the ABI to
-use 64 bit file offsets the programs will fail. In that case you have to
-compile libev with the same flags to get binary compatibility. This is
-obviously the case with any flags that change the ABI, but the problem is
-most noticeably displayed with ev_stat and large file support.
-
-The solution for this is to lobby your distribution maker to make large
-file interfaces available by default (as e.g. FreeBSD does) and not
-optional. Libev cannot simply switch on large file support because it has
-to exchange stat structures with application programs compiled using the
-default compilation environment.
-
-=head3 Inotify and Kqueue
-
-When C<inotify (7)> support has been compiled into libev and present at
-runtime, it will be used to speed up change detection where possible. The
-inotify descriptor will be created lazily when the first C<ev_stat>
-watcher is being started.
-
-Inotify presence does not change the semantics of C<ev_stat> watchers
-except that changes might be detected earlier, and in some cases, to avoid
-making regular C<stat> calls. Even in the presence of inotify support
-there are many cases where libev has to resort to regular C<stat> polling,
-but as long as kernel 2.6.25 or newer is used (2.6.24 and older have too
-many bugs), the path exists (i.e. stat succeeds), and the path resides on
-a local filesystem (libev currently assumes only ext2/3, jfs, reiserfs and
-xfs are fully working) libev usually gets away without polling.
-
-There is no support for kqueue, as apparently it cannot be used to
-implement this functionality, due to the requirement of having a file
-descriptor open on the object at all times, and detecting renames, unlinks
-etc. is difficult.
-
-=head3 C<stat ()> is a synchronous operation
-
-Libev doesn't normally do any kind of I/O itself, and so is not blocking
-the process. The exception are C<ev_stat> watchers - those call C<stat
-()>, which is a synchronous operation.
-
-For local paths, this usually doesn't matter: unless the system is very
-busy or the intervals between stat's are large, a stat call will be fast,
-as the path data is usually in memory already (except when starting the
-watcher).
-
-For networked file systems, calling C<stat ()> can block an indefinite
-time due to network issues, and even under good conditions, a stat call
-often takes multiple milliseconds.
-
-Therefore, it is best to avoid using C<ev_stat> watchers on networked
-paths, although this is fully supported by libev.
-
-=head3 The special problem of stat time resolution
-
-The C<stat ()> system call only supports full-second resolution portably,
-and even on systems where the resolution is higher, most file systems
-still only support whole seconds.
-
-That means that, if the time is the only thing that changes, you can
-easily miss updates: on the first update, C<ev_stat> detects a change and
-calls your callback, which does something. When there is another update
-within the same second, C<ev_stat> will be unable to detect unless the
-stat data does change in other ways (e.g. file size).
-
-The solution to this is to delay acting on a change for slightly more
-than a second (or till slightly after the next full second boundary), using
-a roughly one-second-delay C<ev_timer> (e.g. C<ev_timer_set (w, 0., 1.02);
-ev_timer_again (loop, w)>).
-
-The C<.02> offset is added to work around small timing inconsistencies
-of some operating systems (where the second counter of the current time
-might be be delayed. One such system is the Linux kernel, where a call to
-C<gettimeofday> might return a timestamp with a full second later than
-a subsequent C<time> call - if the equivalent of C<time ()> is used to
-update file times then there will be a small window where the kernel uses
-the previous second to update file times but libev might already execute
-the timer callback).
-
-=head3 Watcher-Specific Functions and Data Members
-
-=over 4
-
-=item ev_stat_init (ev_stat *, callback, const char *path, ev_tstamp interval)
-
-=item ev_stat_set (ev_stat *, const char *path, ev_tstamp interval)
-
-Configures the watcher to wait for status changes of the given
-C<path>. The C<interval> is a hint on how quickly a change is expected to
-be detected and should normally be specified as C<0> to let libev choose
-a suitable value. The memory pointed to by C<path> must point to the same
-path for as long as the watcher is active.
-
-The callback will receive an C<EV_STAT> event when a change was detected,
-relative to the attributes at the time the watcher was started (or the
-last change was detected).
-
-=item ev_stat_stat (loop, ev_stat *)
-
-Updates the stat buffer immediately with new values. If you change the
-watched path in your callback, you could call this function to avoid
-detecting this change (while introducing a race condition if you are not
-the only one changing the path). Can also be useful simply to find out the
-new values.
-
-=item ev_statdata attr [read-only]
-
-The most-recently detected attributes of the file. Although the type is
-C<ev_statdata>, this is usually the (or one of the) C<struct stat> types
-suitable for your system, but you can only rely on the POSIX-standardised
-members to be present. If the C<st_nlink> member is C<0>, then there was
-some error while C<stat>ing the file.
-
-=item ev_statdata prev [read-only]
-
-The previous attributes of the file. The callback gets invoked whenever
-C<prev> != C<attr>, or, more precisely, one or more of these members
-differ: C<st_dev>, C<st_ino>, C<st_mode>, C<st_nlink>, C<st_uid>,
-C<st_gid>, C<st_rdev>, C<st_size>, C<st_atime>, C<st_mtime>, C<st_ctime>.
-
-=item ev_tstamp interval [read-only]
-
-The specified interval.
-
-=item const char *path [read-only]
-
-The file system path that is being watched.
-
-=back
-
-=head3 Examples
-
-Example: Watch C</etc/passwd> for attribute changes.
-
-   static void
-   passwd_cb (struct ev_loop *loop, ev_stat *w, int revents)
-   {
-     /* /etc/passwd changed in some way */
-     if (w->attr.st_nlink)
-       {
-         printf ("passwd current size  %ld\n", (long)w->attr.st_size);
-         printf ("passwd current atime %ld\n", (long)w->attr.st_mtime);
-         printf ("passwd current mtime %ld\n", (long)w->attr.st_mtime);
-       }
-     else
-       /* you shalt not abuse printf for puts */
-       puts ("wow, /etc/passwd is not there, expect problems. "
-             "if this is windows, they already arrived\n");
-   }
-
-   ...
-   ev_stat passwd;
-
-   ev_stat_init (&passwd, passwd_cb, "/etc/passwd", 0.);
-   ev_stat_start (loop, &passwd);
-
-Example: Like above, but additionally use a one-second delay so we do not
-miss updates (however, frequent updates will delay processing, too, so
-one might do the work both on C<ev_stat> callback invocation I<and> on
-C<ev_timer> callback invocation).
-
-   static ev_stat passwd;
-   static ev_timer timer;
-
-   static void
-   timer_cb (EV_P_ ev_timer *w, int revents)
-   {
-     ev_timer_stop (EV_A_ w);
-
-     /* now it's one second after the most recent passwd change */
-   }
-
-   static void
-   stat_cb (EV_P_ ev_stat *w, int revents)
-   {
-     /* reset the one-second timer */
-     ev_timer_again (EV_A_ &timer);
-   }
-
-   ...
-   ev_stat_init (&passwd, stat_cb, "/etc/passwd", 0.);
-   ev_stat_start (loop, &passwd);
-   ev_timer_init (&timer, timer_cb, 0., 1.02);
-
-
-=head2 C<ev_idle> - when you've got nothing better to do...
-
-Idle watchers trigger events when no other events of the same or higher
-priority are pending (prepare, check and other idle watchers do not count
-as receiving "events").
-
-That is, as long as your process is busy handling sockets or timeouts
-(or even signals, imagine) of the same or higher priority it will not be
-triggered. But when your process is idle (or only lower-priority watchers
-are pending), the idle watchers are being called once per event loop
-iteration - until stopped, that is, or your process receives more events
-and becomes busy again with higher priority stuff.
-
-The most noteworthy effect is that as long as any idle watchers are
-active, the process will not block when waiting for new events.
-
-Apart from keeping your process non-blocking (which is a useful
-effect on its own sometimes), idle watchers are a good place to do
-"pseudo-background processing", or delay processing stuff to after the
-event loop has handled all outstanding events.
-
-=head3 Watcher-Specific Functions and Data Members
-
-=over 4
-
-=item ev_idle_init (ev_idle *, callback)
-
-Initialises and configures the idle watcher - it has no parameters of any
-kind. There is a C<ev_idle_set> macro, but using it is utterly pointless,
-believe me.
-
-=back
-
-=head3 Examples
-
-Example: Dynamically allocate an C<ev_idle> watcher, start it, and in the
-callback, free it. Also, use no error checking, as usual.
-
-   static void
-   idle_cb (struct ev_loop *loop, ev_idle *w, int revents)
-   {
-     free (w);
-     // now do something you wanted to do when the program has
-     // no longer anything immediate to do.
-   }
-
-   ev_idle *idle_watcher = malloc (sizeof (ev_idle));
-   ev_idle_init (idle_watcher, idle_cb);
-   ev_idle_start (loop, idle_watcher);
-
-
-=head2 C<ev_prepare> and C<ev_check> - customise your event loop!
-
-Prepare and check watchers are usually (but not always) used in pairs:
-prepare watchers get invoked before the process blocks and check watchers
-afterwards.
-
-You I<must not> call C<ev_run> or similar functions that enter
-the current event loop from either C<ev_prepare> or C<ev_check>
-watchers. Other loops than the current one are fine, however. The
-rationale behind this is that you do not need to check for recursion in
-those watchers, i.e. the sequence will always be C<ev_prepare>, blocking,
-C<ev_check> so if you have one watcher of each kind they will always be
-called in pairs bracketing the blocking call.
-
-Their main purpose is to integrate other event mechanisms into libev and
-their use is somewhat advanced. They could be used, for example, to track
-variable changes, implement your own watchers, integrate net-snmp or a
-coroutine library and lots more. They are also occasionally useful if
-you cache some data and want to flush it before blocking (for example,
-in X programs you might want to do an C<XFlush ()> in an C<ev_prepare>
-watcher).
-
-This is done by examining in each prepare call which file descriptors
-need to be watched by the other library, registering C<ev_io> watchers
-for them and starting an C<ev_timer> watcher for any timeouts (many
-libraries provide exactly this functionality). Then, in the check watcher,
-you check for any events that occurred (by checking the pending status
-of all watchers and stopping them) and call back into the library. The
-I/O and timer callbacks will never actually be called (but must be valid
-nevertheless, because you never know, you know?).
-
-As another example, the Perl Coro module uses these hooks to integrate
-coroutines into libev programs, by yielding to other active coroutines
-during each prepare and only letting the process block if no coroutines
-are ready to run (it's actually more complicated: it only runs coroutines
-with priority higher than or equal to the event loop and one coroutine
-of lower priority, but only once, using idle watchers to keep the event
-loop from blocking if lower-priority coroutines are active, thus mapping
-low-priority coroutines to idle/background tasks).
-
-It is recommended to give C<ev_check> watchers highest (C<EV_MAXPRI>)
-priority, to ensure that they are being run before any other watchers
-after the poll (this doesn't matter for C<ev_prepare> watchers).
-
-Also, C<ev_check> watchers (and C<ev_prepare> watchers, too) should not
-activate ("feed") events into libev. While libev fully supports this, they
-might get executed before other C<ev_check> watchers did their job. As
-C<ev_check> watchers are often used to embed other (non-libev) event
-loops those other event loops might be in an unusable state until their
-C<ev_check> watcher ran (always remind yourself to coexist peacefully with
-others).
-
-=head3 Watcher-Specific Functions and Data Members
-
-=over 4
-
-=item ev_prepare_init (ev_prepare *, callback)
-
-=item ev_check_init (ev_check *, callback)
-
-Initialises and configures the prepare or check watcher - they have no
-parameters of any kind. There are C<ev_prepare_set> and C<ev_check_set>
-macros, but using them is utterly, utterly, utterly and completely
-pointless.
-
-=back
-
-=head3 Examples
-
-There are a number of principal ways to embed other event loops or modules
-into libev. Here are some ideas on how to include libadns into libev
-(there is a Perl module named C<EV::ADNS> that does this, which you could
-use as a working example. Another Perl module named C<EV::Glib> embeds a
-Glib main context into libev, and finally, C<Glib::EV> embeds EV into the
-Glib event loop).
-
-Method 1: Add IO watchers and a timeout watcher in a prepare handler,
-and in a check watcher, destroy them and call into libadns. What follows
-is pseudo-code only of course. This requires you to either use a low
-priority for the check watcher or use C<ev_clear_pending> explicitly, as
-the callbacks for the IO/timeout watchers might not have been called yet.
-
-   static ev_io iow [nfd];
-   static ev_timer tw;
-
-   static void
-   io_cb (struct ev_loop *loop, ev_io *w, int revents)
-   {
-   }
-
-   // create io watchers for each fd and a timer before blocking
-   static void
-   adns_prepare_cb (struct ev_loop *loop, ev_prepare *w, int revents)
-   {
-     int timeout = 3600000;
-     struct pollfd fds [nfd];
-     // actual code will need to loop here and realloc etc.
-     adns_beforepoll (ads, fds, &nfd, &timeout, timeval_from (ev_time ()));
-
-     /* the callback is illegal, but won't be called as we stop during check */
-     ev_timer_init (&tw, 0, timeout * 1e-3, 0.);
-     ev_timer_start (loop, &tw);
-
-     // create one ev_io per pollfd
-     for (int i = 0; i < nfd; ++i)
-       {
-         ev_io_init (iow + i, io_cb, fds [i].fd,
-           ((fds [i].events & POLLIN ? EV_READ : 0)
-            | (fds [i].events & POLLOUT ? EV_WRITE : 0)));
-
-         fds [i].revents = 0;
-         ev_io_start (loop, iow + i);
-       }
-   }
-
-   // stop all watchers after blocking
-   static void
-   adns_check_cb (struct ev_loop *loop, ev_check *w, int revents)
-   {
-     ev_timer_stop (loop, &tw);
-
-     for (int i = 0; i < nfd; ++i)
-       {
-         // set the relevant poll flags
-         // could also call adns_processreadable etc. here
-         struct pollfd *fd = fds + i;
-         int revents = ev_clear_pending (iow + i);
-         if (revents & EV_READ ) fd->revents |= fd->events & POLLIN;
-         if (revents & EV_WRITE) fd->revents |= fd->events & POLLOUT;
-
-         // now stop the watcher
-         ev_io_stop (loop, iow + i);
-       }
-
-     adns_afterpoll (adns, fds, nfd, timeval_from (ev_now (loop));
-   }
-
-Method 2: This would be just like method 1, but you run C<adns_afterpoll>
-in the prepare watcher and would dispose of the check watcher.
-
-Method 3: If the module to be embedded supports explicit event
-notification (libadns does), you can also make use of the actual watcher
-callbacks, and only destroy/create the watchers in the prepare watcher.
-
-   static void
-   timer_cb (EV_P_ ev_timer *w, int revents)
-   {
-     adns_state ads = (adns_state)w->data;
-     update_now (EV_A);
-
-     adns_processtimeouts (ads, &tv_now);
-   }
-
-   static void
-   io_cb (EV_P_ ev_io *w, int revents)
-   {
-     adns_state ads = (adns_state)w->data;
-     update_now (EV_A);
-
-     if (revents & EV_READ ) adns_processreadable  (ads, w->fd, &tv_now);
-     if (revents & EV_WRITE) adns_processwriteable (ads, w->fd, &tv_now);
-   }
-
-   // do not ever call adns_afterpoll
-
-Method 4: Do not use a prepare or check watcher because the module you
-want to embed is not flexible enough to support it. Instead, you can
-override their poll function. The drawback with this solution is that the
-main loop is now no longer controllable by EV. The C<Glib::EV> module uses
-this approach, effectively embedding EV as a client into the horrible
-libglib event loop.
-
-   static gint
-   event_poll_func (GPollFD *fds, guint nfds, gint timeout)
-   {
-     int got_events = 0;
-
-     for (n = 0; n < nfds; ++n)
-       // create/start io watcher that sets the relevant bits in fds[n] and increment got_events
-
-     if (timeout >= 0)
-       // create/start timer
-
-     // poll
-     ev_run (EV_A_ 0);
-
-     // stop timer again
-     if (timeout >= 0)
-       ev_timer_stop (EV_A_ &to);
-
-     // stop io watchers again - their callbacks should have set
-     for (n = 0; n < nfds; ++n)
-       ev_io_stop (EV_A_ iow [n]);
-
-     return got_events;
-   }
-
-
-=head2 C<ev_embed> - when one backend isn't enough...
-
-This is a rather advanced watcher type that lets you embed one event loop
-into another (currently only C<ev_io> events are supported in the embedded
-loop, other types of watchers might be handled in a delayed or incorrect
-fashion and must not be used).
-
-There are primarily two reasons you would want that: work around bugs and
-prioritise I/O.
-
-As an example for a bug workaround, the kqueue backend might only support
-sockets on some platform, so it is unusable as generic backend, but you
-still want to make use of it because you have many sockets and it scales
-so nicely. In this case, you would create a kqueue-based loop and embed
-it into your default loop (which might use e.g. poll). Overall operation
-will be a bit slower because first libev has to call C<poll> and then
-C<kevent>, but at least you can use both mechanisms for what they are
-best: C<kqueue> for scalable sockets and C<poll> if you want it to work :)
-
-As for prioritising I/O: under rare circumstances you have the case where
-some fds have to be watched and handled very quickly (with low latency),
-and even priorities and idle watchers might have too much overhead. In
-this case you would put all the high priority stuff in one loop and all
-the rest in a second one, and embed the second one in the first.
-
-As long as the watcher is active, the callback will be invoked every
-time there might be events pending in the embedded loop. The callback
-must then call C<ev_embed_sweep (mainloop, watcher)> to make a single
-sweep and invoke their callbacks (the callback doesn't need to invoke the
-C<ev_embed_sweep> function directly, it could also start an idle watcher
-to give the embedded loop strictly lower priority for example).
-
-You can also set the callback to C<0>, in which case the embed watcher
-will automatically execute the embedded loop sweep whenever necessary.
-
-Fork detection will be handled transparently while the C<ev_embed> watcher
-is active, i.e., the embedded loop will automatically be forked when the
-embedding loop forks. In other cases, the user is responsible for calling
-C<ev_loop_fork> on the embedded loop.
-
-Unfortunately, not all backends are embeddable: only the ones returned by
-C<ev_embeddable_backends> are, which, unfortunately, does not include any
-portable one.
-
-So when you want to use this feature you will always have to be prepared
-that you cannot get an embeddable loop. The recommended way to get around
-this is to have a separate variables for your embeddable loop, try to
-create it, and if that fails, use the normal loop for everything.
-
-=head3 C<ev_embed> and fork
-
-While the C<ev_embed> watcher is running, forks in the embedding loop will
-automatically be applied to the embedded loop as well, so no special
-fork handling is required in that case. When the watcher is not running,
-however, it is still the task of the libev user to call C<ev_loop_fork ()>
-as applicable.
-
-=head3 Watcher-Specific Functions and Data Members
-
-=over 4
-
-=item ev_embed_init (ev_embed *, callback, struct ev_loop *embedded_loop)
-
-=item ev_embed_set (ev_embed *, callback, struct ev_loop *embedded_loop)
-
-Configures the watcher to embed the given loop, which must be
-embeddable. If the callback is C<0>, then C<ev_embed_sweep> will be
-invoked automatically, otherwise it is the responsibility of the callback
-to invoke it (it will continue to be called until the sweep has been done,
-if you do not want that, you need to temporarily stop the embed watcher).
-
-=item ev_embed_sweep (loop, ev_embed *)
-
-Make a single, non-blocking sweep over the embedded loop. This works
-similarly to C<ev_run (embedded_loop, EVRUN_NOWAIT)>, but in the most
-appropriate way for embedded loops.
-
-=item struct ev_loop *other [read-only]
-
-The embedded event loop.
-
-=back
-
-=head3 Examples
-
-Example: Try to get an embeddable event loop and embed it into the default
-event loop. If that is not possible, use the default loop. The default
-loop is stored in C<loop_hi>, while the embeddable loop is stored in
-C<loop_lo> (which is C<loop_hi> in the case no embeddable loop can be
-used).
-
-   struct ev_loop *loop_hi = ev_default_init (0);
-   struct ev_loop *loop_lo = 0;
-   ev_embed embed;
-   
-   // see if there is a chance of getting one that works
-   // (remember that a flags value of 0 means autodetection)
-   loop_lo = ev_embeddable_backends () & ev_recommended_backends ()
-     ? ev_loop_new (ev_embeddable_backends () & ev_recommended_backends ())
-     : 0;
-
-   // if we got one, then embed it, otherwise default to loop_hi
-   if (loop_lo)
-     {
-       ev_embed_init (&embed, 0, loop_lo);
-       ev_embed_start (loop_hi, &embed);
-     }
-   else
-     loop_lo = loop_hi;
-
-Example: Check if kqueue is available but not recommended and create
-a kqueue backend for use with sockets (which usually work with any
-kqueue implementation). Store the kqueue/socket-only event loop in
-C<loop_socket>. (One might optionally use C<EVFLAG_NOENV>, too).
-
-   struct ev_loop *loop = ev_default_init (0);
-   struct ev_loop *loop_socket = 0;
-   ev_embed embed;
-   
-   if (ev_supported_backends () & ~ev_recommended_backends () & EVBACKEND_KQUEUE)
-     if ((loop_socket = ev_loop_new (EVBACKEND_KQUEUE))
-       {
-         ev_embed_init (&embed, 0, loop_socket);
-         ev_embed_start (loop, &embed);
-       }
-
-   if (!loop_socket)
-     loop_socket = loop;
-
-   // now use loop_socket for all sockets, and loop for everything else
-
-
-=head2 C<ev_fork> - the audacity to resume the event loop after a fork
-
-Fork watchers are called when a C<fork ()> was detected (usually because
-whoever is a good citizen cared to tell libev about it by calling
-C<ev_default_fork> or C<ev_loop_fork>). The invocation is done before the
-event loop blocks next and before C<ev_check> watchers are being called,
-and only in the child after the fork. If whoever good citizen calling
-C<ev_default_fork> cheats and calls it in the wrong process, the fork
-handlers will be invoked, too, of course.
-
-=head3 The special problem of life after fork - how is it possible?
-
-Most uses of C<fork()> consist of forking, then some simple calls to set
-up/change the process environment, followed by a call to C<exec()>. This
-sequence should be handled by libev without any problems.
-
-This changes when the application actually wants to do event handling
-in the child, or both parent in child, in effect "continuing" after the
-fork.
-
-The default mode of operation (for libev, with application help to detect
-forks) is to duplicate all the state in the child, as would be expected
-when I<either> the parent I<or> the child process continues.
-
-When both processes want to continue using libev, then this is usually the
-wrong result. In that case, usually one process (typically the parent) is
-supposed to continue with all watchers in place as before, while the other
-process typically wants to start fresh, i.e. without any active watchers.
-
-The cleanest and most efficient way to achieve that with libev is to
-simply create a new event loop, which of course will be "empty", and
-use that for new watchers. This has the advantage of not touching more
-memory than necessary, and thus avoiding the copy-on-write, and the
-disadvantage of having to use multiple event loops (which do not support
-signal watchers).
-
-When this is not possible, or you want to use the default loop for
-other reasons, then in the process that wants to start "fresh", call
-C<ev_loop_destroy (EV_DEFAULT)> followed by C<ev_default_loop (...)>.
-Destroying the default loop will "orphan" (not stop) all registered
-watchers, so you have to be careful not to execute code that modifies
-those watchers. Note also that in that case, you have to re-register any
-signal watchers.
-
-=head3 Watcher-Specific Functions and Data Members
-
-=over 4
-
-=item ev_fork_init (ev_fork *, callback)
-
-Initialises and configures the fork watcher - it has no parameters of any
-kind. There is a C<ev_fork_set> macro, but using it is utterly pointless,
-really.
-
-=back
-
-
-=head2 C<ev_cleanup> - even the best things end
-
-Cleanup watchers are called just before the event loop is being destroyed
-by a call to C<ev_loop_destroy>.
-
-While there is no guarantee that the event loop gets destroyed, cleanup
-watchers provide a convenient method to install cleanup hooks for your
-program, worker threads and so on - you just to make sure to destroy the
-loop when you want them to be invoked.
-
-Cleanup watchers are invoked in the same way as any other watcher. Unlike
-all other watchers, they do not keep a reference to the event loop (which
-makes a lot of sense if you think about it). Like all other watchers, you
-can call libev functions in the callback, except C<ev_cleanup_start>.
-
-=head3 Watcher-Specific Functions and Data Members
-
-=over 4
-
-=item ev_cleanup_init (ev_cleanup *, callback)
-
-Initialises and configures the cleanup watcher - it has no parameters of
-any kind. There is a C<ev_cleanup_set> macro, but using it is utterly
-pointless, I assure you.
-
-=back
-
-Example: Register an atexit handler to destroy the default loop, so any
-cleanup functions are called.
-
-   static void
-   program_exits (void)
-   {
-     ev_loop_destroy (EV_DEFAULT_UC);
-   }
-
-   ...
-   atexit (program_exits);
-
-
-=head2 C<ev_async> - how to wake up an event loop
-
-In general, you cannot use an C<ev_loop> from multiple threads or other
-asynchronous sources such as signal handlers (as opposed to multiple event
-loops - those are of course safe to use in different threads).
-
-Sometimes, however, you need to wake up an event loop you do not control,
-for example because it belongs to another thread. This is what C<ev_async>
-watchers do: as long as the C<ev_async> watcher is active, you can signal
-it by calling C<ev_async_send>, which is thread- and signal safe.
-
-This functionality is very similar to C<ev_signal> watchers, as signals,
-too, are asynchronous in nature, and signals, too, will be compressed
-(i.e. the number of callback invocations may be less than the number of
-C<ev_async_sent> calls). In fact, you could use signal watchers as a kind
-of "global async watchers" by using a watcher on an otherwise unused
-signal, and C<ev_feed_signal> to signal this watcher from another thread,
-even without knowing which loop owns the signal.
-
-Unlike C<ev_signal> watchers, C<ev_async> works with any event loop, not
-just the default loop.
-
-=head3 Queueing
-
-C<ev_async> does not support queueing of data in any way. The reason
-is that the author does not know of a simple (or any) algorithm for a
-multiple-writer-single-reader queue that works in all cases and doesn't
-need elaborate support such as pthreads or unportable memory access
-semantics.
-
-That means that if you want to queue data, you have to provide your own
-queue. But at least I can tell you how to implement locking around your
-queue:
-
-=over 4
-
-=item queueing from a signal handler context
-
-To implement race-free queueing, you simply add to the queue in the signal
-handler but you block the signal handler in the watcher callback. Here is
-an example that does that for some fictitious SIGUSR1 handler:
-
-   static ev_async mysig;
-
-   static void
-   sigusr1_handler (void)
-   {
-     sometype data;
-
-     // no locking etc.
-     queue_put (data);
-     ev_async_send (EV_DEFAULT_ &mysig);
-   }
-
-   static void
-   mysig_cb (EV_P_ ev_async *w, int revents)
-   {
-     sometype data;
-     sigset_t block, prev;
-
-     sigemptyset (&block);
-     sigaddset (&block, SIGUSR1);
-     sigprocmask (SIG_BLOCK, &block, &prev);
-
-     while (queue_get (&data))
-       process (data);
-
-     if (sigismember (&prev, SIGUSR1)
-       sigprocmask (SIG_UNBLOCK, &block, 0);
-   }
-
-(Note: pthreads in theory requires you to use C<pthread_setmask>
-instead of C<sigprocmask> when you use threads, but libev doesn't do it
-either...).
-
-=item queueing from a thread context
-
-The strategy for threads is different, as you cannot (easily) block
-threads but you can easily preempt them, so to queue safely you need to
-employ a traditional mutex lock, such as in this pthread example:
-
-   static ev_async mysig;
-   static pthread_mutex_t mymutex = PTHREAD_MUTEX_INITIALIZER;
-
-   static void
-   otherthread (void)
-   {
-     // only need to lock the actual queueing operation
-     pthread_mutex_lock (&mymutex);
-     queue_put (data);
-     pthread_mutex_unlock (&mymutex);
-
-     ev_async_send (EV_DEFAULT_ &mysig);
-   }
-
-   static void
-   mysig_cb (EV_P_ ev_async *w, int revents)
-   {
-     pthread_mutex_lock (&mymutex);
-
-     while (queue_get (&data))
-       process (data);
-
-     pthread_mutex_unlock (&mymutex);
-   }
-
-=back
-
-
-=head3 Watcher-Specific Functions and Data Members
-
-=over 4
-
-=item ev_async_init (ev_async *, callback)
-
-Initialises and configures the async watcher - it has no parameters of any
-kind. There is a C<ev_async_set> macro, but using it is utterly pointless,
-trust me.
-
-=item ev_async_send (loop, ev_async *)
-
-Sends/signals/activates the given C<ev_async> watcher, that is, feeds
-an C<EV_ASYNC> event on the watcher into the event loop, and instantly
-returns.
-
-Unlike C<ev_feed_event>, this call is safe to do from other threads,
-signal or similar contexts (see the discussion of C<EV_ATOMIC_T> in the
-embedding section below on what exactly this means).
-
-Note that, as with other watchers in libev, multiple events might get
-compressed into a single callback invocation (another way to look at this
-is that C<ev_async> watchers are level-triggered, set on C<ev_async_send>,
-reset when the event loop detects that).
-
-This call incurs the overhead of a system call only once per event loop
-iteration, so while the overhead might be noticeable, it doesn't apply to
-repeated calls to C<ev_async_send> for the same event loop.
-
-=item bool = ev_async_pending (ev_async *)
-
-Returns a non-zero value when C<ev_async_send> has been called on the
-watcher but the event has not yet been processed (or even noted) by the
-event loop.
-
-C<ev_async_send> sets a flag in the watcher and wakes up the loop. When
-the loop iterates next and checks for the watcher to have become active,
-it will reset the flag again. C<ev_async_pending> can be used to very
-quickly check whether invoking the loop might be a good idea.
-
-Not that this does I<not> check whether the watcher itself is pending,
-only whether it has been requested to make this watcher pending: there
-is a time window between the event loop checking and resetting the async
-notification, and the callback being invoked.
-
-=back
-
-
-=head1 OTHER FUNCTIONS
-
-There are some other functions of possible interest. Described. Here. Now.
-
-=over 4
-
-=item ev_once (loop, int fd, int events, ev_tstamp timeout, callback)
-
-This function combines a simple timer and an I/O watcher, calls your
-callback on whichever event happens first and automatically stops both
-watchers. This is useful if you want to wait for a single event on an fd
-or timeout without having to allocate/configure/start/stop/free one or
-more watchers yourself.
-
-If C<fd> is less than 0, then no I/O watcher will be started and the
-C<events> argument is being ignored. Otherwise, an C<ev_io> watcher for
-the given C<fd> and C<events> set will be created and started.
-
-If C<timeout> is less than 0, then no timeout watcher will be
-started. Otherwise an C<ev_timer> watcher with after = C<timeout> (and
-repeat = 0) will be started. C<0> is a valid timeout.
-
-The callback has the type C<void (*cb)(int revents, void *arg)> and is
-passed an C<revents> set like normal event callbacks (a combination of
-C<EV_ERROR>, C<EV_READ>, C<EV_WRITE> or C<EV_TIMER>) and the C<arg>
-value passed to C<ev_once>. Note that it is possible to receive I<both>
-a timeout and an io event at the same time - you probably should give io
-events precedence.
-
-Example: wait up to ten seconds for data to appear on STDIN_FILENO.
-
-   static void stdin_ready (int revents, void *arg)
-   {
-     if (revents & EV_READ)
-       /* stdin might have data for us, joy! */;
-     else if (revents & EV_TIMER)
-       /* doh, nothing entered */;
-   }
-
-   ev_once (STDIN_FILENO, EV_READ, 10., stdin_ready, 0);
-
-=item ev_feed_fd_event (loop, int fd, int revents)
-
-Feed an event on the given fd, as if a file descriptor backend detected
-the given events it.
-
-=item ev_feed_signal_event (loop, int signum)
-
-Feed an event as if the given signal occurred. See also C<ev_feed_signal>,
-which is async-safe.
-
-=back
-
-
-=head1 COMMON OR USEFUL IDIOMS (OR BOTH)
-
-This section explains some common idioms that are not immediately
-obvious. Note that examples are sprinkled over the whole manual, and this
-section only contains stuff that wouldn't fit anywhere else.
-
-=head2 ASSOCIATING CUSTOM DATA WITH A WATCHER
-
-Each watcher has, by default, a C<void *data> member that you can read
-or modify at any time: libev will completely ignore it. This can be used
-to associate arbitrary data with your watcher. If you need more data and
-don't want to allocate memory separately and store a pointer to it in that
-data member, you can also "subclass" the watcher type and provide your own
-data:
-
-   struct my_io
-   {
-     ev_io io;
-     int otherfd;
-     void *somedata;
-     struct whatever *mostinteresting;
-   };
-
-   ...
-   struct my_io w;
-   ev_io_init (&w.io, my_cb, fd, EV_READ);
-
-And since your callback will be called with a pointer to the watcher, you
-can cast it back to your own type:
-
-   static void my_cb (struct ev_loop *loop, ev_io *w_, int revents)
-   {
-     struct my_io *w = (struct my_io *)w_;
-     ...
-   }
-
-More interesting and less C-conformant ways of casting your callback
-function type instead have been omitted.
-
-=head2 BUILDING YOUR OWN COMPOSITE WATCHERS
-
-Another common scenario is to use some data structure with multiple
-embedded watchers, in effect creating your own watcher that combines
-multiple libev event sources into one "super-watcher":
-
-   struct my_biggy
-   {
-     int some_data;
-     ev_timer t1;
-     ev_timer t2;
-   }
-
-In this case getting the pointer to C<my_biggy> is a bit more
-complicated: Either you store the address of your C<my_biggy> struct in
-the C<data> member of the watcher (for woozies or C++ coders), or you need
-to use some pointer arithmetic using C<offsetof> inside your watchers (for
-real programmers):
-
-   #include <stddef.h>
-
-   static void
-   t1_cb (EV_P_ ev_timer *w, int revents)
-   {
-     struct my_biggy big = (struct my_biggy *)
-       (((char *)w) - offsetof (struct my_biggy, t1));
-   }
-
-   static void
-   t2_cb (EV_P_ ev_timer *w, int revents)
-   {
-     struct my_biggy big = (struct my_biggy *)
-       (((char *)w) - offsetof (struct my_biggy, t2));
-   }
-
-=head2 MODEL/NESTED EVENT LOOP INVOCATIONS AND EXIT CONDITIONS
-
-Often (especially in GUI toolkits) there are places where you have
-I<modal> interaction, which is most easily implemented by recursively
-invoking C<ev_run>.
-
-This brings the problem of exiting - a callback might want to finish the
-main C<ev_run> call, but not the nested one (e.g. user clicked "Quit", but
-a modal "Are you sure?" dialog is still waiting), or just the nested one
-and not the main one (e.g. user clocked "Ok" in a modal dialog), or some
-other combination: In these cases, C<ev_break> will not work alone.
-
-The solution is to maintain "break this loop" variable for each C<ev_run>
-invocation, and use a loop around C<ev_run> until the condition is
-triggered, using C<EVRUN_ONCE>:
-
-   // main loop
-   int exit_main_loop = 0;
-
-   while (!exit_main_loop)
-     ev_run (EV_DEFAULT_ EVRUN_ONCE);
-
-   // in a model watcher
-   int exit_nested_loop = 0;
-
-   while (!exit_nested_loop)
-     ev_run (EV_A_ EVRUN_ONCE);
-
-To exit from any of these loops, just set the corresponding exit variable:
-
-   // exit modal loop
-   exit_nested_loop = 1;
-
-   // exit main program, after modal loop is finished
-   exit_main_loop = 1;
-
-   // exit both
-   exit_main_loop = exit_nested_loop = 1;
-
-=head2 THREAD LOCKING EXAMPLE
-
-Here is a fictitious example of how to run an event loop in a different
-thread from where callbacks are being invoked and watchers are
-created/added/removed.
-
-For a real-world example, see the C<EV::Loop::Async> perl module,
-which uses exactly this technique (which is suited for many high-level
-languages).
-
-The example uses a pthread mutex to protect the loop data, a condition
-variable to wait for callback invocations, an async watcher to notify the
-event loop thread and an unspecified mechanism to wake up the main thread.
-
-First, you need to associate some data with the event loop:
-
-   typedef struct {
-     mutex_t lock; /* global loop lock */
-     ev_async async_w;
-     thread_t tid;
-     cond_t invoke_cv;
-   } userdata;
-
-   void prepare_loop (EV_P)
-   {
-      // for simplicity, we use a static userdata struct.
-      static userdata u;
-
-      ev_async_init (&u->async_w, async_cb);
-      ev_async_start (EV_A_ &u->async_w);
-
-      pthread_mutex_init (&u->lock, 0);
-      pthread_cond_init (&u->invoke_cv, 0);
-
-      // now associate this with the loop
-      ev_set_userdata (EV_A_ u);
-      ev_set_invoke_pending_cb (EV_A_ l_invoke);
-      ev_set_loop_release_cb (EV_A_ l_release, l_acquire);
-
-      // then create the thread running ev_run
-      pthread_create (&u->tid, 0, l_run, EV_A);
-   }
-
-The callback for the C<ev_async> watcher does nothing: the watcher is used
-solely to wake up the event loop so it takes notice of any new watchers
-that might have been added:
-
-   static void
-   async_cb (EV_P_ ev_async *w, int revents)
-   {
-      // just used for the side effects
-   }
-
-The C<l_release> and C<l_acquire> callbacks simply unlock/lock the mutex
-protecting the loop data, respectively.
-
-   static void
-   l_release (EV_P)
-   {
-     userdata *u = ev_userdata (EV_A);
-     pthread_mutex_unlock (&u->lock);
-   }
-
-   static void
-   l_acquire (EV_P)
-   {
-     userdata *u = ev_userdata (EV_A);
-     pthread_mutex_lock (&u->lock);
-   }
-
-The event loop thread first acquires the mutex, and then jumps straight
-into C<ev_run>:
-
-   void *
-   l_run (void *thr_arg)
-   {
-     struct ev_loop *loop = (struct ev_loop *)thr_arg;
-
-     l_acquire (EV_A);
-     pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, 0);
-     ev_run (EV_A_ 0);
-     l_release (EV_A);
-
-     return 0;
-   }
-
-Instead of invoking all pending watchers, the C<l_invoke> callback will
-signal the main thread via some unspecified mechanism (signals? pipe
-writes? C<Async::Interrupt>?) and then waits until all pending watchers
-have been called (in a while loop because a) spurious wakeups are possible
-and b) skipping inter-thread-communication when there are no pending
-watchers is very beneficial):
-
-   static void
-   l_invoke (EV_P)
-   {
-     userdata *u = ev_userdata (EV_A);
-
-     while (ev_pending_count (EV_A))
-       {
-         wake_up_other_thread_in_some_magic_or_not_so_magic_way ();
-         pthread_cond_wait (&u->invoke_cv, &u->lock);
-       }
-   }
-
-Now, whenever the main thread gets told to invoke pending watchers, it
-will grab the lock, call C<ev_invoke_pending> and then signal the loop
-thread to continue:
-
-   static void
-   real_invoke_pending (EV_P)
-   {
-     userdata *u = ev_userdata (EV_A);
-
-     pthread_mutex_lock (&u->lock);
-     ev_invoke_pending (EV_A);
-     pthread_cond_signal (&u->invoke_cv);
-     pthread_mutex_unlock (&u->lock);
-   }
-
-Whenever you want to start/stop a watcher or do other modifications to an
-event loop, you will now have to lock:
-
-   ev_timer timeout_watcher;
-   userdata *u = ev_userdata (EV_A);
-
-   ev_timer_init (&timeout_watcher, timeout_cb, 5.5, 0.);
-
-   pthread_mutex_lock (&u->lock);
-   ev_timer_start (EV_A_ &timeout_watcher);
-   ev_async_send (EV_A_ &u->async_w);
-   pthread_mutex_unlock (&u->lock);
-
-Note that sending the C<ev_async> watcher is required because otherwise
-an event loop currently blocking in the kernel will have no knowledge
-about the newly added timer. By waking up the loop it will pick up any new
-watchers in the next event loop iteration.
-
-=head2 THREADS, COROUTINES, CONTINUATIONS, QUEUES... INSTEAD OF CALLBACKS
-
-While the overhead of a callback that e.g. schedules a thread is small, it
-is still an overhead. If you embed libev, and your main usage is with some
-kind of threads or coroutines, you might want to customise libev so that
-doesn't need callbacks anymore.
-
-Imagine you have coroutines that you can switch to using a function
-C<switch_to (coro)>, that libev runs in a coroutine called C<libev_coro>
-and that due to some magic, the currently active coroutine is stored in a
-global called C<current_coro>. Then you can build your own "wait for libev
-event" primitive by changing C<EV_CB_DECLARE> and C<EV_CB_INVOKE> (note
-the differing C<;> conventions):
-
-   #define EV_CB_DECLARE(type)   struct my_coro *cb;
-   #define EV_CB_INVOKE(watcher) switch_to ((watcher)->cb)
-
-That means instead of having a C callback function, you store the
-coroutine to switch to in each watcher, and instead of having libev call
-your callback, you instead have it switch to that coroutine.
-
-A coroutine might now wait for an event with a function called
-C<wait_for_event>. (the watcher needs to be started, as always, but it doesn't
-matter when, or whether the watcher is active or not when this function is
-called):
-
-   void
-   wait_for_event (ev_watcher *w)
-   {
-     ev_cb_set (w) = current_coro;
-     switch_to (libev_coro);
-   }
-
-That basically suspends the coroutine inside C<wait_for_event> and
-continues the libev coroutine, which, when appropriate, switches back to
-this or any other coroutine. I am sure if you sue this your own :)
-
-You can do similar tricks if you have, say, threads with an event queue -
-instead of storing a coroutine, you store the queue object and instead of
-switching to a coroutine, you push the watcher onto the queue and notify
-any waiters.
-
-To embed libev, see L<EMBEDDING>, but in short, it's easiest to create two
-files, F<my_ev.h> and F<my_ev.c> that include the respective libev files:
-
-   // my_ev.h
-   #define EV_CB_DECLARE(type)   struct my_coro *cb;
-   #define EV_CB_INVOKE(watcher) switch_to ((watcher)->cb);
-   #include "../libev/ev.h"
-
-   // my_ev.c
-   #define EV_H "my_ev.h"
-   #include "../libev/ev.c"
-
-And then use F<my_ev.h> when you would normally use F<ev.h>, and compile
-F<my_ev.c> into your project. When properly specifying include paths, you
-can even use F<ev.h> as header file name directly.
-
-
-=head1 LIBEVENT EMULATION
-
-Libev offers a compatibility emulation layer for libevent. It cannot
-emulate the internals of libevent, so here are some usage hints:
-
-=over 4
-
-=item * Only the libevent-1.4.1-beta API is being emulated.
-
-This was the newest libevent version available when libev was implemented,
-and is still mostly unchanged in 2010.
-
-=item * Use it by including <event.h>, as usual.
-
-=item * The following members are fully supported: ev_base, ev_callback,
-ev_arg, ev_fd, ev_res, ev_events.
-
-=item * Avoid using ev_flags and the EVLIST_*-macros, while it is
-maintained by libev, it does not work exactly the same way as in libevent (consider
-it a private API).
-
-=item * Priorities are not currently supported. Initialising priorities
-will fail and all watchers will have the same priority, even though there
-is an ev_pri field.
-
-=item * In libevent, the last base created gets the signals, in libev, the
-base that registered the signal gets the signals.
-
-=item * Other members are not supported.
-
-=item * The libev emulation is I<not> ABI compatible to libevent, you need
-to use the libev header file and library.
-
-=back
-
-=head1 C++ SUPPORT
-
-Libev comes with some simplistic wrapper classes for C++ that mainly allow
-you to use some convenience methods to start/stop watchers and also change
-the callback model to a model using method callbacks on objects.
-
-To use it,
-   
-   #include <ev++.h>
-
-This automatically includes F<ev.h> and puts all of its definitions (many
-of them macros) into the global namespace. All C++ specific things are
-put into the C<ev> namespace. It should support all the same embedding
-options as F<ev.h>, most notably C<EV_MULTIPLICITY>.
-
-Care has been taken to keep the overhead low. The only data member the C++
-classes add (compared to plain C-style watchers) is the event loop pointer
-that the watcher is associated with (or no additional members at all if
-you disable C<EV_MULTIPLICITY> when embedding libev).
-
-Currently, functions, static and non-static member functions and classes
-with C<operator ()> can be used as callbacks. Other types should be easy
-to add as long as they only need one additional pointer for context. If
-you need support for other types of functors please contact the author
-(preferably after implementing it).
-
-Here is a list of things available in the C<ev> namespace:
-
-=over 4
-
-=item C<ev::READ>, C<ev::WRITE> etc.
-
-These are just enum values with the same values as the C<EV_READ> etc.
-macros from F<ev.h>.
-
-=item C<ev::tstamp>, C<ev::now>
-
-Aliases to the same types/functions as with the C<ev_> prefix.
-
-=item C<ev::io>, C<ev::timer>, C<ev::periodic>, C<ev::idle>, C<ev::sig> etc.
-
-For each C<ev_TYPE> watcher in F<ev.h> there is a corresponding class of
-the same name in the C<ev> namespace, with the exception of C<ev_signal>
-which is called C<ev::sig> to avoid clashes with the C<signal> macro
-defines by many implementations.
-
-All of those classes have these methods:
-
-=over 4
-
-=item ev::TYPE::TYPE ()
-
-=item ev::TYPE::TYPE (loop)
-
-=item ev::TYPE::~TYPE
-
-The constructor (optionally) takes an event loop to associate the watcher
-with. If it is omitted, it will use C<EV_DEFAULT>.
-
-The constructor calls C<ev_init> for you, which means you have to call the
-C<set> method before starting it.
-
-It will not set a callback, however: You have to call the templated C<set>
-method to set a callback before you can start the watcher.
-
-(The reason why you have to use a method is a limitation in C++ which does
-not allow explicit template arguments for constructors).
-
-The destructor automatically stops the watcher if it is active.
-
-=item w->set<class, &class::method> (object *)
-
-This method sets the callback method to call. The method has to have a
-signature of C<void (*)(ev_TYPE &, int)>, it receives the watcher as
-first argument and the C<revents> as second. The object must be given as
-parameter and is stored in the C<data> member of the watcher.
-
-This method synthesizes efficient thunking code to call your method from
-the C callback that libev requires. If your compiler can inline your
-callback (i.e. it is visible to it at the place of the C<set> call and
-your compiler is good :), then the method will be fully inlined into the
-thunking function, making it as fast as a direct C callback.
-
-Example: simple class declaration and watcher initialisation
-
-   struct myclass
-   {
-     void io_cb (ev::io &w, int revents) { }
-   }
-
-   myclass obj;
-   ev::io iow;
-   iow.set <myclass, &myclass::io_cb> (&obj);
-
-=item w->set (object *)
-
-This is a variation of a method callback - leaving out the method to call
-will default the method to C<operator ()>, which makes it possible to use
-functor objects without having to manually specify the C<operator ()> all
-the time. Incidentally, you can then also leave out the template argument
-list.
-
-The C<operator ()> method prototype must be C<void operator ()(watcher &w,
-int revents)>.
-
-See the method-C<set> above for more details.
-
-Example: use a functor object as callback.
-
-   struct myfunctor
-   {
-     void operator() (ev::io &w, int revents)
-     {
-       ...
-     }
-   }
-    
-   myfunctor f;
-
-   ev::io w;
-   w.set (&f);
-
-=item w->set<function> (void *data = 0)
-
-Also sets a callback, but uses a static method or plain function as
-callback. The optional C<data> argument will be stored in the watcher's
-C<data> member and is free for you to use.
-
-The prototype of the C<function> must be C<void (*)(ev::TYPE &w, int)>.
-
-See the method-C<set> above for more details.
-
-Example: Use a plain function as callback.
-
-   static void io_cb (ev::io &w, int revents) { }
-   iow.set <io_cb> ();
-
-=item w->set (loop)
-
-Associates a different C<struct ev_loop> with this watcher. You can only
-do this when the watcher is inactive (and not pending either).
-
-=item w->set ([arguments])
-
-Basically the same as C<ev_TYPE_set>, with the same arguments. Either this
-method or a suitable start method must be called at least once. Unlike the
-C counterpart, an active watcher gets automatically stopped and restarted
-when reconfiguring it with this method.
-
-=item w->start ()
-
-Starts the watcher. Note that there is no C<loop> argument, as the
-constructor already stores the event loop.
-
-=item w->start ([arguments])
-
-Instead of calling C<set> and C<start> methods separately, it is often
-convenient to wrap them in one call. Uses the same type of arguments as
-the configure C<set> method of the watcher.
-
-=item w->stop ()
-
-Stops the watcher if it is active. Again, no C<loop> argument.
-
-=item w->again () (C<ev::timer>, C<ev::periodic> only)
-
-For C<ev::timer> and C<ev::periodic>, this invokes the corresponding
-C<ev_TYPE_again> function.
-
-=item w->sweep () (C<ev::embed> only)
-
-Invokes C<ev_embed_sweep>.
-
-=item w->update () (C<ev::stat> only)
-
-Invokes C<ev_stat_stat>.
-
-=back
-
-=back
-
-Example: Define a class with two I/O and idle watchers, start the I/O
-watchers in the constructor.
-
-   class myclass
-   {
-     ev::io   io  ; void io_cb   (ev::io   &w, int revents);
-     ev::io2  io2 ; void io2_cb  (ev::io   &w, int revents);
-     ev::idle idle; void idle_cb (ev::idle &w, int revents);
-
-     myclass (int fd)
-     {
-       io  .set <myclass, &myclass::io_cb  > (this);
-       io2 .set <myclass, &myclass::io2_cb > (this);
-       idle.set <myclass, &myclass::idle_cb> (this);
-
-       io.set (fd, ev::WRITE); // configure the watcher
-       io.start ();            // start it whenever convenient
-
-       io2.start (fd, ev::READ); // set + start in one call
-     }
-   };
-
-
-=head1 OTHER LANGUAGE BINDINGS
-
-Libev does not offer other language bindings itself, but bindings for a
-number of languages exist in the form of third-party packages. If you know
-any interesting language binding in addition to the ones listed here, drop
-me a note.
-
-=over 4
-
-=item Perl
-
-The EV module implements the full libev API and is actually used to test
-libev. EV is developed together with libev. Apart from the EV core module,
-there are additional modules that implement libev-compatible interfaces
-to C<libadns> (C<EV::ADNS>, but C<AnyEvent::DNS> is preferred nowadays),
-C<Net::SNMP> (C<Net::SNMP::EV>) and the C<libglib> event core (C<Glib::EV>
-and C<EV::Glib>).
-
-It can be found and installed via CPAN, its homepage is at
-L<http://software.schmorp.de/pkg/EV>.
-
-=item Python
-
-Python bindings can be found at L<http://code.google.com/p/pyev/>. It
-seems to be quite complete and well-documented.
-
-=item Ruby
-
-Tony Arcieri has written a ruby extension that offers access to a subset
-of the libev API and adds file handle abstractions, asynchronous DNS and
-more on top of it. It can be found via gem servers. Its homepage is at
-L<http://rev.rubyforge.org/>.
-
-Roger Pack reports that using the link order C<-lws2_32 -lmsvcrt-ruby-190>
-makes rev work even on mingw.
-
-=item Haskell
-
-A haskell binding to libev is available at
-L<http://hackage.haskell.org/cgi-bin/hackage-scripts/package/hlibev>.
-
-=item D
-
-Leandro Lucarella has written a D language binding (F<ev.d>) for libev, to
-be found at L<http://proj.llucax.com.ar/wiki/evd>.
-
-=item Ocaml
-
-Erkki Seppala has written Ocaml bindings for libev, to be found at
-L<http://modeemi.cs.tut.fi/~flux/software/ocaml-ev/>.
-
-=item Lua
-
-Brian Maher has written a partial interface to libev for lua (at the
-time of this writing, only C<ev_io> and C<ev_timer>), to be found at
-L<http://github.com/brimworks/lua-ev>.
-
-=back
-
-
-=head1 MACRO MAGIC
-
-Libev can be compiled with a variety of options, the most fundamental
-of which is C<EV_MULTIPLICITY>. This option determines whether (most)
-functions and callbacks have an initial C<struct ev_loop *> argument.
-
-To make it easier to write programs that cope with either variant, the
-following macros are defined:
-
-=over 4
-
-=item C<EV_A>, C<EV_A_>
-
-This provides the loop I<argument> for functions, if one is required ("ev
-loop argument"). The C<EV_A> form is used when this is the sole argument,
-C<EV_A_> is used when other arguments are following. Example:
-
-   ev_unref (EV_A);
-   ev_timer_add (EV_A_ watcher);
-   ev_run (EV_A_ 0);
-
-It assumes the variable C<loop> of type C<struct ev_loop *> is in scope,
-which is often provided by the following macro.
-
-=item C<EV_P>, C<EV_P_>
-
-This provides the loop I<parameter> for functions, if one is required ("ev
-loop parameter"). The C<EV_P> form is used when this is the sole parameter,
-C<EV_P_> is used when other parameters are following. Example:
-
-   // this is how ev_unref is being declared
-   static void ev_unref (EV_P);
-
-   // this is how you can declare your typical callback
-   static void cb (EV_P_ ev_timer *w, int revents)
-
-It declares a parameter C<loop> of type C<struct ev_loop *>, quite
-suitable for use with C<EV_A>.
-
-=item C<EV_DEFAULT>, C<EV_DEFAULT_>
-
-Similar to the other two macros, this gives you the value of the default
-loop, if multiple loops are supported ("ev loop default").
-
-=item C<EV_DEFAULT_UC>, C<EV_DEFAULT_UC_>
-
-Usage identical to C<EV_DEFAULT> and C<EV_DEFAULT_>, but requires that the
-default loop has been initialised (C<UC> == unchecked). Their behaviour
-is undefined when the default loop has not been initialised by a previous
-execution of C<EV_DEFAULT>, C<EV_DEFAULT_> or C<ev_default_init (...)>.
-
-It is often prudent to use C<EV_DEFAULT> when initialising the first
-watcher in a function but use C<EV_DEFAULT_UC> afterwards.
-
-=back
-
-Example: Declare and initialise a check watcher, utilising the above
-macros so it will work regardless of whether multiple loops are supported
-or not.
-
-   static void
-   check_cb (EV_P_ ev_timer *w, int revents)
-   {
-     ev_check_stop (EV_A_ w);
-   }
-
-   ev_check check;
-   ev_check_init (&check, check_cb);
-   ev_check_start (EV_DEFAULT_ &check);
-   ev_run (EV_DEFAULT_ 0);
-
-=head1 EMBEDDING
-
-Libev can (and often is) directly embedded into host
-applications. Examples of applications that embed it include the Deliantra
-Game Server, the EV perl module, the GNU Virtual Private Ethernet (gvpe)
-and rxvt-unicode.
-
-The goal is to enable you to just copy the necessary files into your
-source directory without having to change even a single line in them, so
-you can easily upgrade by simply copying (or having a checked-out copy of
-libev somewhere in your source tree).
-
-=head2 FILESETS
-
-Depending on what features you need you need to include one or more sets of files
-in your application.
-
-=head3 CORE EVENT LOOP
-
-To include only the libev core (all the C<ev_*> functions), with manual
-configuration (no autoconf):
-
-   #define EV_STANDALONE 1
-   #include "ev.c"
-
-This will automatically include F<ev.h>, too, and should be done in a
-single C source file only to provide the function implementations. To use
-it, do the same for F<ev.h> in all files wishing to use this API (best
-done by writing a wrapper around F<ev.h> that you can include instead and
-where you can put other configuration options):
-
-   #define EV_STANDALONE 1
-   #include "ev.h"
-
-Both header files and implementation files can be compiled with a C++
-compiler (at least, that's a stated goal, and breakage will be treated
-as a bug).
-
-You need the following files in your source tree, or in a directory
-in your include path (e.g. in libev/ when using -Ilibev):
-
-   ev.h
-   ev.c
-   ev_vars.h
-   ev_wrap.h
-
-   ev_win32.c      required on win32 platforms only
-
-   ev_select.c     only when select backend is enabled (which is enabled by default)
-   ev_poll.c       only when poll backend is enabled (disabled by default)
-   ev_epoll.c      only when the epoll backend is enabled (disabled by default)
-   ev_kqueue.c     only when the kqueue backend is enabled (disabled by default)
-   ev_port.c       only when the solaris port backend is enabled (disabled by default)
-
-F<ev.c> includes the backend files directly when enabled, so you only need
-to compile this single file.
-
-=head3 LIBEVENT COMPATIBILITY API
-
-To include the libevent compatibility API, also include:
-
-   #include "event.c"
-
-in the file including F<ev.c>, and:
-
-   #include "event.h"
-
-in the files that want to use the libevent API. This also includes F<ev.h>.
-
-You need the following additional files for this:
-
-   event.h
-   event.c
-
-=head3 AUTOCONF SUPPORT
-
-Instead of using C<EV_STANDALONE=1> and providing your configuration in
-whatever way you want, you can also C<m4_include([libev.m4])> in your
-F<configure.ac> and leave C<EV_STANDALONE> undefined. F<ev.c> will then
-include F<config.h> and configure itself accordingly.
-
-For this of course you need the m4 file:
-
-   libev.m4
-
-=head2 PREPROCESSOR SYMBOLS/MACROS
-
-Libev can be configured via a variety of preprocessor symbols you have to
-define before including (or compiling) any of its files. The default in
-the absence of autoconf is documented for every option.
-
-Symbols marked with "(h)" do not change the ABI, and can have different
-values when compiling libev vs. including F<ev.h>, so it is permissible
-to redefine them before including F<ev.h> without breaking compatibility
-to a compiled library. All other symbols change the ABI, which means all
-users of libev and the libev code itself must be compiled with compatible
-settings.
-
-=over 4
-
-=item EV_COMPAT3 (h)
-
-Backwards compatibility is a major concern for libev. This is why this
-release of libev comes with wrappers for the functions and symbols that
-have been renamed between libev version 3 and 4.
-
-You can disable these wrappers (to test compatibility with future
-versions) by defining C<EV_COMPAT3> to C<0> when compiling your
-sources. This has the additional advantage that you can drop the C<struct>
-from C<struct ev_loop> declarations, as libev will provide an C<ev_loop>
-typedef in that case.
-
-In some future version, the default for C<EV_COMPAT3> will become C<0>,
-and in some even more future version the compatibility code will be
-removed completely.
-
-=item EV_STANDALONE (h)
-
-Must always be C<1> if you do not use autoconf configuration, which
-keeps libev from including F<config.h>, and it also defines dummy
-implementations for some libevent functions (such as logging, which is not
-supported). It will also not define any of the structs usually found in
-F<event.h> that are not directly supported by the libev core alone.
-
-In standalone mode, libev will still try to automatically deduce the
-configuration, but has to be more conservative.
-
-=item EV_USE_MONOTONIC
-
-If defined to be C<1>, libev will try to detect the availability of the
-monotonic clock option at both compile time and runtime. Otherwise no
-use of the monotonic clock option will be attempted. If you enable this,
-you usually have to link against librt or something similar. Enabling it
-when the functionality isn't available is safe, though, although you have
-to make sure you link against any libraries where the C<clock_gettime>
-function is hiding in (often F<-lrt>). See also C<EV_USE_CLOCK_SYSCALL>.
-
-=item EV_USE_REALTIME
-
-If defined to be C<1>, libev will try to detect the availability of the
-real-time clock option at compile time (and assume its availability
-at runtime if successful). Otherwise no use of the real-time clock
-option will be attempted. This effectively replaces C<gettimeofday>
-by C<clock_get (CLOCK_REALTIME, ...)> and will not normally affect
-correctness. See the note about libraries in the description of
-C<EV_USE_MONOTONIC>, though. Defaults to the opposite value of
-C<EV_USE_CLOCK_SYSCALL>.
-
-=item EV_USE_CLOCK_SYSCALL
-
-If defined to be C<1>, libev will try to use a direct syscall instead
-of calling the system-provided C<clock_gettime> function. This option
-exists because on GNU/Linux, C<clock_gettime> is in C<librt>, but C<librt>
-unconditionally pulls in C<libpthread>, slowing down single-threaded
-programs needlessly. Using a direct syscall is slightly slower (in
-theory), because no optimised vdso implementation can be used, but avoids
-the pthread dependency. Defaults to C<1> on GNU/Linux with glibc 2.x or
-higher, as it simplifies linking (no need for C<-lrt>).
-
-=item EV_USE_NANOSLEEP
-
-If defined to be C<1>, libev will assume that C<nanosleep ()> is available
-and will use it for delays. Otherwise it will use C<select ()>.
-
-=item EV_USE_EVENTFD
-
-If defined to be C<1>, then libev will assume that C<eventfd ()> is
-available and will probe for kernel support at runtime. This will improve
-C<ev_signal> and C<ev_async> performance and reduce resource consumption.
-If undefined, it will be enabled if the headers indicate GNU/Linux + Glibc
-2.7 or newer, otherwise disabled.
-
-=item EV_USE_SELECT
-
-If undefined or defined to be C<1>, libev will compile in support for the
-C<select>(2) backend. No attempt at auto-detection will be done: if no
-other method takes over, select will be it. Otherwise the select backend
-will not be compiled in.
-
-=item EV_SELECT_USE_FD_SET
-
-If defined to C<1>, then the select backend will use the system C<fd_set>
-structure. This is useful if libev doesn't compile due to a missing
-C<NFDBITS> or C<fd_mask> definition or it mis-guesses the bitset layout
-on exotic systems. This usually limits the range of file descriptors to
-some low limit such as 1024 or might have other limitations (winsocket
-only allows 64 sockets). The C<FD_SETSIZE> macro, set before compilation,
-configures the maximum size of the C<fd_set>.
-
-=item EV_SELECT_IS_WINSOCKET
-
-When defined to C<1>, the select backend will assume that
-select/socket/connect etc. don't understand file descriptors but
-wants osf handles on win32 (this is the case when the select to
-be used is the winsock select). This means that it will call
-C<_get_osfhandle> on the fd to convert it to an OS handle. Otherwise,
-it is assumed that all these functions actually work on fds, even
-on win32. Should not be defined on non-win32 platforms.
-
-=item EV_FD_TO_WIN32_HANDLE(fd)
-
-If C<EV_SELECT_IS_WINSOCKET> is enabled, then libev needs a way to map
-file descriptors to socket handles. When not defining this symbol (the
-default), then libev will call C<_get_osfhandle>, which is usually
-correct. In some cases, programs use their own file descriptor management,
-in which case they can provide this function to map fds to socket handles.
-
-=item EV_WIN32_HANDLE_TO_FD(handle)
-
-If C<EV_SELECT_IS_WINSOCKET> then libev maps handles to file descriptors
-using the standard C<_open_osfhandle> function. For programs implementing
-their own fd to handle mapping, overwriting this function makes it easier
-to do so. This can be done by defining this macro to an appropriate value.
-
-=item EV_WIN32_CLOSE_FD(fd)
-
-If programs implement their own fd to handle mapping on win32, then this
-macro can be used to override the C<close> function, useful to unregister
-file descriptors again. Note that the replacement function has to close
-the underlying OS handle.
-
-=item EV_USE_POLL
-
-If defined to be C<1>, libev will compile in support for the C<poll>(2)
-backend. Otherwise it will be enabled on non-win32 platforms. It
-takes precedence over select.
-
-=item EV_USE_EPOLL
-
-If defined to be C<1>, libev will compile in support for the Linux
-C<epoll>(7) backend. Its availability will be detected at runtime,
-otherwise another method will be used as fallback. This is the preferred
-backend for GNU/Linux systems. If undefined, it will be enabled if the
-headers indicate GNU/Linux + Glibc 2.4 or newer, otherwise disabled.
-
-=item EV_USE_KQUEUE
-
-If defined to be C<1>, libev will compile in support for the BSD style
-C<kqueue>(2) backend. Its actual availability will be detected at runtime,
-otherwise another method will be used as fallback. This is the preferred
-backend for BSD and BSD-like systems, although on most BSDs kqueue only
-supports some types of fds correctly (the only platform we found that
-supports ptys for example was NetBSD), so kqueue might be compiled in, but
-not be used unless explicitly requested. The best way to use it is to find
-out whether kqueue supports your type of fd properly and use an embedded
-kqueue loop.
-
-=item EV_USE_PORT
-
-If defined to be C<1>, libev will compile in support for the Solaris
-10 port style backend. Its availability will be detected at runtime,
-otherwise another method will be used as fallback. This is the preferred
-backend for Solaris 10 systems.
-
-=item EV_USE_DEVPOLL
-
-Reserved for future expansion, works like the USE symbols above.
-
-=item EV_USE_INOTIFY
-
-If defined to be C<1>, libev will compile in support for the Linux inotify
-interface to speed up C<ev_stat> watchers. Its actual availability will
-be detected at runtime. If undefined, it will be enabled if the headers
-indicate GNU/Linux + Glibc 2.4 or newer, otherwise disabled.
-
-=item EV_ATOMIC_T
-
-Libev requires an integer type (suitable for storing C<0> or C<1>) whose
-access is atomic with respect to other threads or signal contexts. No such
-type is easily found in the C language, so you can provide your own type
-that you know is safe for your purposes. It is used both for signal handler "locking"
-as well as for signal and thread safety in C<ev_async> watchers.
-
-In the absence of this define, libev will use C<sig_atomic_t volatile>
-(from F<signal.h>), which is usually good enough on most platforms.
-
-=item EV_H (h)
-
-The name of the F<ev.h> header file used to include it. The default if
-undefined is C<"ev.h"> in F<event.h>, F<ev.c> and F<ev++.h>. This can be
-used to virtually rename the F<ev.h> header file in case of conflicts.
-
-=item EV_CONFIG_H (h)
-
-If C<EV_STANDALONE> isn't C<1>, this variable can be used to override
-F<ev.c>'s idea of where to find the F<config.h> file, similarly to
-C<EV_H>, above.
-
-=item EV_EVENT_H (h)
-
-Similarly to C<EV_H>, this macro can be used to override F<event.c>'s idea
-of how the F<event.h> header can be found, the default is C<"event.h">.
-
-=item EV_PROTOTYPES (h)
-
-If defined to be C<0>, then F<ev.h> will not define any function
-prototypes, but still define all the structs and other symbols. This is
-occasionally useful if you want to provide your own wrapper functions
-around libev functions.
-
-=item EV_MULTIPLICITY
-
-If undefined or defined to C<1>, then all event-loop-specific functions
-will have the C<struct ev_loop *> as first argument, and you can create
-additional independent event loops. Otherwise there will be no support
-for multiple event loops and there is no first event loop pointer
-argument. Instead, all functions act on the single default loop.
-
-=item EV_MINPRI
-
-=item EV_MAXPRI
-
-The range of allowed priorities. C<EV_MINPRI> must be smaller or equal to
-C<EV_MAXPRI>, but otherwise there are no non-obvious limitations. You can
-provide for more priorities by overriding those symbols (usually defined
-to be C<-2> and C<2>, respectively).
-
-When doing priority-based operations, libev usually has to linearly search
-all the priorities, so having many of them (hundreds) uses a lot of space
-and time, so using the defaults of five priorities (-2 .. +2) is usually
-fine.
-
-If your embedding application does not need any priorities, defining these
-both to C<0> will save some memory and CPU.
-
-=item EV_PERIODIC_ENABLE, EV_IDLE_ENABLE, EV_EMBED_ENABLE, EV_STAT_ENABLE,
-EV_PREPARE_ENABLE, EV_CHECK_ENABLE, EV_FORK_ENABLE, EV_SIGNAL_ENABLE,
-EV_ASYNC_ENABLE, EV_CHILD_ENABLE.
-
-If undefined or defined to be C<1> (and the platform supports it), then
-the respective watcher type is supported. If defined to be C<0>, then it
-is not. Disabling watcher types mainly saves code size.
-
-=item EV_FEATURES
-
-If you need to shave off some kilobytes of code at the expense of some
-speed (but with the full API), you can define this symbol to request
-certain subsets of functionality. The default is to enable all features
-that can be enabled on the platform.
-
-A typical way to use this symbol is to define it to C<0> (or to a bitset
-with some broad features you want) and then selectively re-enable
-additional parts you want, for example if you want everything minimal,
-but multiple event loop support, async and child watchers and the poll
-backend, use this:
-
-   #define EV_FEATURES 0
-   #define EV_MULTIPLICITY 1
-   #define EV_USE_POLL 1
-   #define EV_CHILD_ENABLE 1
-   #define EV_ASYNC_ENABLE 1
-
-The actual value is a bitset, it can be a combination of the following
-values:
-
-=over 4
-
-=item C<1> - faster/larger code
-
-Use larger code to speed up some operations.
-
-Currently this is used to override some inlining decisions (enlarging the
-code size by roughly 30% on amd64).
-
-When optimising for size, use of compiler flags such as C<-Os> with
-gcc is recommended, as well as C<-DNDEBUG>, as libev contains a number of
-assertions.
-
-=item C<2> - faster/larger data structures
-
-Replaces the small 2-heap for timer management by a faster 4-heap, larger
-hash table sizes and so on. This will usually further increase code size
-and can additionally have an effect on the size of data structures at
-runtime.
-
-=item C<4> - full API configuration
-
-This enables priorities (sets C<EV_MAXPRI>=2 and C<EV_MINPRI>=-2), and
-enables multiplicity (C<EV_MULTIPLICITY>=1).
-
-=item C<8> - full API
-
-This enables a lot of the "lesser used" API functions. See C<ev.h> for
-details on which parts of the API are still available without this
-feature, and do not complain if this subset changes over time.
-
-=item C<16> - enable all optional watcher types
-
-Enables all optional watcher types.  If you want to selectively enable
-only some watcher types other than I/O and timers (e.g. prepare,
-embed, async, child...) you can enable them manually by defining
-C<EV_watchertype_ENABLE> to C<1> instead.
-
-=item C<32> - enable all backends
-
-This enables all backends - without this feature, you need to enable at
-least one backend manually (C<EV_USE_SELECT> is a good choice).
-
-=item C<64> - enable OS-specific "helper" APIs
-
-Enable inotify, eventfd, signalfd and similar OS-specific helper APIs by
-default.
-
-=back
-
-Compiling with C<gcc -Os -DEV_STANDALONE -DEV_USE_EPOLL=1 -DEV_FEATURES=0>
-reduces the compiled size of libev from 24.7Kb code/2.8Kb data to 6.5Kb
-code/0.3Kb data on my GNU/Linux amd64 system, while still giving you I/O
-watchers, timers and monotonic clock support.
-
-With an intelligent-enough linker (gcc+binutils are intelligent enough
-when you use C<-Wl,--gc-sections -ffunction-sections>) functions unused by
-your program might be left out as well - a binary starting a timer and an
-I/O watcher then might come out at only 5Kb.
-
-=item EV_AVOID_STDIO
-
-If this is set to C<1> at compiletime, then libev will avoid using stdio
-functions (printf, scanf, perror etc.). This will increase the code size
-somewhat, but if your program doesn't otherwise depend on stdio and your
-libc allows it, this avoids linking in the stdio library which is quite
-big.
-
-Note that error messages might become less precise when this option is
-enabled.
-
-=item EV_NSIG
-
-The highest supported signal number, +1 (or, the number of
-signals): Normally, libev tries to deduce the maximum number of signals
-automatically, but sometimes this fails, in which case it can be
-specified. Also, using a lower number than detected (C<32> should be
-good for about any system in existence) can save some memory, as libev
-statically allocates some 12-24 bytes per signal number.
-
-=item EV_PID_HASHSIZE
-
-C<ev_child> watchers use a small hash table to distribute workload by
-pid. The default size is C<16> (or C<1> with C<EV_FEATURES> disabled),
-usually more than enough. If you need to manage thousands of children you
-might want to increase this value (I<must> be a power of two).
-
-=item EV_INOTIFY_HASHSIZE
-
-C<ev_stat> watchers use a small hash table to distribute workload by
-inotify watch id. The default size is C<16> (or C<1> with C<EV_FEATURES>
-disabled), usually more than enough. If you need to manage thousands of
-C<ev_stat> watchers you might want to increase this value (I<must> be a
-power of two).
-
-=item EV_USE_4HEAP
-
-Heaps are not very cache-efficient. To improve the cache-efficiency of the
-timer and periodics heaps, libev uses a 4-heap when this symbol is defined
-to C<1>. The 4-heap uses more complicated (longer) code but has noticeably
-faster performance with many (thousands) of watchers.
-
-The default is C<1>, unless C<EV_FEATURES> overrides it, in which case it
-will be C<0>.
-
-=item EV_HEAP_CACHE_AT
-
-Heaps are not very cache-efficient. To improve the cache-efficiency of the
-timer and periodics heaps, libev can cache the timestamp (I<at>) within
-the heap structure (selected by defining C<EV_HEAP_CACHE_AT> to C<1>),
-which uses 8-12 bytes more per watcher and a few hundred bytes more code,
-but avoids random read accesses on heap changes. This improves performance
-noticeably with many (hundreds) of watchers.
-
-The default is C<1>, unless C<EV_FEATURES> overrides it, in which case it
-will be C<0>.
-
-=item EV_VERIFY
-
-Controls how much internal verification (see C<ev_verify ()>) will
-be done: If set to C<0>, no internal verification code will be compiled
-in. If set to C<1>, then verification code will be compiled in, but not
-called. If set to C<2>, then the internal verification code will be
-called once per loop, which can slow down libev. If set to C<3>, then the
-verification code will be called very frequently, which will slow down
-libev considerably.
-
-The default is C<1>, unless C<EV_FEATURES> overrides it, in which case it
-will be C<0>.
-
-=item EV_COMMON
-
-By default, all watchers have a C<void *data> member. By redefining
-this macro to something else you can include more and other types of
-members. You have to define it each time you include one of the files,
-though, and it must be identical each time.
-
-For example, the perl EV module uses something like this:
-
-   #define EV_COMMON                       \
-     SV *self; /* contains this struct */  \
-     SV *cb_sv, *fh /* note no trailing ";" */
-
-=item EV_CB_DECLARE (type)
-
-=item EV_CB_INVOKE (watcher, revents)
-
-=item ev_set_cb (ev, cb)
-
-Can be used to change the callback member declaration in each watcher,
-and the way callbacks are invoked and set. Must expand to a struct member
-definition and a statement, respectively. See the F<ev.h> header file for
-their default definitions. One possible use for overriding these is to
-avoid the C<struct ev_loop *> as first argument in all cases, or to use
-method calls instead of plain function calls in C++.
-
-=back
-
-=head2 EXPORTED API SYMBOLS
-
-If you need to re-export the API (e.g. via a DLL) and you need a list of
-exported symbols, you can use the provided F<Symbol.*> files which list
-all public symbols, one per line:
-
-   Symbols.ev      for libev proper
-   Symbols.event   for the libevent emulation
-
-This can also be used to rename all public symbols to avoid clashes with
-multiple versions of libev linked together (which is obviously bad in
-itself, but sometimes it is inconvenient to avoid this).
-
-A sed command like this will create wrapper C<#define>'s that you need to
-include before including F<ev.h>:
-
-   <Symbols.ev sed -e "s/.*/#define & myprefix_&/" >wrap.h
-
-This would create a file F<wrap.h> which essentially looks like this:
-
-   #define ev_backend     myprefix_ev_backend
-   #define ev_check_start myprefix_ev_check_start
-   #define ev_check_stop  myprefix_ev_check_stop
-   ...
-
-=head2 EXAMPLES
-
-For a real-world example of a program the includes libev
-verbatim, you can have a look at the EV perl module
-(L<http://software.schmorp.de/pkg/EV.html>). It has the libev files in
-the F<libev/> subdirectory and includes them in the F<EV/EVAPI.h> (public
-interface) and F<EV.xs> (implementation) files. Only the F<EV.xs> file
-will be compiled. It is pretty complex because it provides its own header
-file.
-
-The usage in rxvt-unicode is simpler. It has a F<ev_cpp.h> header file
-that everybody includes and which overrides some configure choices:
-
-   #define EV_FEATURES 8
-   #define EV_USE_SELECT 1
-   #define EV_PREPARE_ENABLE 1
-   #define EV_IDLE_ENABLE 1
-   #define EV_SIGNAL_ENABLE 1
-   #define EV_CHILD_ENABLE 1
-   #define EV_USE_STDEXCEPT 0
-   #define EV_CONFIG_H <config.h>
-
-   #include "ev++.h"
-
-And a F<ev_cpp.C> implementation file that contains libev proper and is compiled:
-
-   #include "ev_cpp.h"
-   #include "ev.c"
-
-=head1 INTERACTION WITH OTHER PROGRAMS, LIBRARIES OR THE ENVIRONMENT
-
-=head2 THREADS AND COROUTINES
-
-=head3 THREADS
-
-All libev functions are reentrant and thread-safe unless explicitly
-documented otherwise, but libev implements no locking itself. This means
-that you can use as many loops as you want in parallel, as long as there
-are no concurrent calls into any libev function with the same loop
-parameter (C<ev_default_*> calls have an implicit default loop parameter,
-of course): libev guarantees that different event loops share no data
-structures that need any locking.
-
-Or to put it differently: calls with different loop parameters can be done
-concurrently from multiple threads, calls with the same loop parameter
-must be done serially (but can be done from different threads, as long as
-only one thread ever is inside a call at any point in time, e.g. by using
-a mutex per loop).
-
-Specifically to support threads (and signal handlers), libev implements
-so-called C<ev_async> watchers, which allow some limited form of
-concurrency on the same event loop, namely waking it up "from the
-outside".
-
-If you want to know which design (one loop, locking, or multiple loops
-without or something else still) is best for your problem, then I cannot
-help you, but here is some generic advice:
-
-=over 4
-
-=item * most applications have a main thread: use the default libev loop
-in that thread, or create a separate thread running only the default loop.
-
-This helps integrating other libraries or software modules that use libev
-themselves and don't care/know about threading.
-
-=item * one loop per thread is usually a good model.
-
-Doing this is almost never wrong, sometimes a better-performance model
-exists, but it is always a good start.
-
-=item * other models exist, such as the leader/follower pattern, where one
-loop is handed through multiple threads in a kind of round-robin fashion.
-
-Choosing a model is hard - look around, learn, know that usually you can do
-better than you currently do :-)
-
-=item * often you need to talk to some other thread which blocks in the
-event loop.
-
-C<ev_async> watchers can be used to wake them up from other threads safely
-(or from signal contexts...).
-
-An example use would be to communicate signals or other events that only
-work in the default loop by registering the signal watcher with the
-default loop and triggering an C<ev_async> watcher from the default loop
-watcher callback into the event loop interested in the signal.
-
-=back
-
-See also L<THREAD LOCKING EXAMPLE>.
-
-=head3 COROUTINES
-
-Libev is very accommodating to coroutines ("cooperative threads"):
-libev fully supports nesting calls to its functions from different
-coroutines (e.g. you can call C<ev_run> on the same loop from two
-different coroutines, and switch freely between both coroutines running
-the loop, as long as you don't confuse yourself). The only exception is
-that you must not do this from C<ev_periodic> reschedule callbacks.
-
-Care has been taken to ensure that libev does not keep local state inside
-C<ev_run>, and other calls do not usually allow for coroutine switches as
-they do not call any callbacks.
-
-=head2 COMPILER WARNINGS
-
-Depending on your compiler and compiler settings, you might get no or a
-lot of warnings when compiling libev code. Some people are apparently
-scared by this.
-
-However, these are unavoidable for many reasons. For one, each compiler
-has different warnings, and each user has different tastes regarding
-warning options. "Warn-free" code therefore cannot be a goal except when
-targeting a specific compiler and compiler-version.
-
-Another reason is that some compiler warnings require elaborate
-workarounds, or other changes to the code that make it less clear and less
-maintainable.
-
-And of course, some compiler warnings are just plain stupid, or simply
-wrong (because they don't actually warn about the condition their message
-seems to warn about). For example, certain older gcc versions had some
-warnings that resulted in an extreme number of false positives. These have
-been fixed, but some people still insist on making code warn-free with
-such buggy versions.
-
-While libev is written to generate as few warnings as possible,
-"warn-free" code is not a goal, and it is recommended not to build libev
-with any compiler warnings enabled unless you are prepared to cope with
-them (e.g. by ignoring them). Remember that warnings are just that:
-warnings, not errors, or proof of bugs.
-
-
-=head2 VALGRIND
-
-Valgrind has a special section here because it is a popular tool that is
-highly useful. Unfortunately, valgrind reports are very hard to interpret.
-
-If you think you found a bug (memory leak, uninitialised data access etc.)
-in libev, then check twice: If valgrind reports something like:
-
-   ==2274==    definitely lost: 0 bytes in 0 blocks.
-   ==2274==      possibly lost: 0 bytes in 0 blocks.
-   ==2274==    still reachable: 256 bytes in 1 blocks.
-
-Then there is no memory leak, just as memory accounted to global variables
-is not a memleak - the memory is still being referenced, and didn't leak.
-
-Similarly, under some circumstances, valgrind might report kernel bugs
-as if it were a bug in libev (e.g. in realloc or in the poll backend,
-although an acceptable workaround has been found here), or it might be
-confused.
-
-Keep in mind that valgrind is a very good tool, but only a tool. Don't
-make it into some kind of religion.
-
-If you are unsure about something, feel free to contact the mailing list
-with the full valgrind report and an explanation on why you think this
-is a bug in libev (best check the archives, too :). However, don't be
-annoyed when you get a brisk "this is no bug" answer and take the chance
-of learning how to interpret valgrind properly.
-
-If you need, for some reason, empty reports from valgrind for your project
-I suggest using suppression lists.
-
-
-=head1 PORTABILITY NOTES
-
-=head2 GNU/LINUX 32 BIT LIMITATIONS
-
-GNU/Linux is the only common platform that supports 64 bit file/large file
-interfaces but I<disables> them by default.
-
-That means that libev compiled in the default environment doesn't support
-files larger than 2GiB or so, which mainly affects C<ev_stat> watchers.
-
-Unfortunately, many programs try to work around this GNU/Linux issue
-by enabling the large file API, which makes them incompatible with the
-standard libev compiled for their system.
-
-Likewise, libev cannot enable the large file API itself as this would
-suddenly make it incompatible to the default compile time environment,
-i.e. all programs not using special compile switches.
-
-=head2 OS/X AND DARWIN BUGS
-
-The whole thing is a bug if you ask me - basically any system interface
-you touch is broken, whether it is locales, poll, kqueue or even the
-OpenGL drivers.
-
-=head3 C<kqueue> is buggy
-
-The kqueue syscall is broken in all known versions - most versions support
-only sockets, many support pipes.
-
-Libev tries to work around this by not using C<kqueue> by default on this
-rotten platform, but of course you can still ask for it when creating a
-loop - embedding a socket-only kqueue loop into a select-based one is
-probably going to work well.
-
-=head3 C<poll> is buggy
-
-Instead of fixing C<kqueue>, Apple replaced their (working) C<poll>
-implementation by something calling C<kqueue> internally around the 10.5.6
-release, so now C<kqueue> I<and> C<poll> are broken.
-
-Libev tries to work around this by not using C<poll> by default on
-this rotten platform, but of course you can still ask for it when creating
-a loop.
-
-=head3 C<select> is buggy
-
-All that's left is C<select>, and of course Apple found a way to fuck this
-one up as well: On OS/X, C<select> actively limits the number of file
-descriptors you can pass in to 1024 - your program suddenly crashes when
-you use more.
-
-There is an undocumented "workaround" for this - defining
-C<_DARWIN_UNLIMITED_SELECT>, which libev tries to use, so select I<should>
-work on OS/X.
-
-=head2 SOLARIS PROBLEMS AND WORKAROUNDS
-
-=head3 C<errno> reentrancy
-
-The default compile environment on Solaris is unfortunately so
-thread-unsafe that you can't even use components/libraries compiled
-without C<-D_REENTRANT> in a threaded program, which, of course, isn't
-defined by default. A valid, if stupid, implementation choice.
-
-If you want to use libev in threaded environments you have to make sure
-it's compiled with C<_REENTRANT> defined.
-
-=head3 Event port backend
-
-The scalable event interface for Solaris is called "event
-ports". Unfortunately, this mechanism is very buggy in all major
-releases. If you run into high CPU usage, your program freezes or you get
-a large number of spurious wakeups, make sure you have all the relevant
-and latest kernel patches applied. No, I don't know which ones, but there
-are multiple ones to apply, and afterwards, event ports actually work
-great.
-
-If you can't get it to work, you can try running the program by setting
-the environment variable C<LIBEV_FLAGS=3> to only allow C<poll> and
-C<select> backends.
-
-=head2 AIX POLL BUG
-
-AIX unfortunately has a broken C<poll.h> header. Libev works around
-this by trying to avoid the poll backend altogether (i.e. it's not even
-compiled in), which normally isn't a big problem as C<select> works fine
-with large bitsets on AIX, and AIX is dead anyway.
-
-=head2 WIN32 PLATFORM LIMITATIONS AND WORKAROUNDS
-
-=head3 General issues
-
-Win32 doesn't support any of the standards (e.g. POSIX) that libev
-requires, and its I/O model is fundamentally incompatible with the POSIX
-model. Libev still offers limited functionality on this platform in
-the form of the C<EVBACKEND_SELECT> backend, and only supports socket
-descriptors. This only applies when using Win32 natively, not when using
-e.g. cygwin. Actually, it only applies to the microsofts own compilers,
-as every compielr comes with a slightly differently broken/incompatible
-environment.
-
-Lifting these limitations would basically require the full
-re-implementation of the I/O system. If you are into this kind of thing,
-then note that glib does exactly that for you in a very portable way (note
-also that glib is the slowest event library known to man).
-
-There is no supported compilation method available on windows except
-embedding it into other applications.
-
-Sensible signal handling is officially unsupported by Microsoft - libev
-tries its best, but under most conditions, signals will simply not work.
-
-Not a libev limitation but worth mentioning: windows apparently doesn't
-accept large writes: instead of resulting in a partial write, windows will
-either accept everything or return C<ENOBUFS> if the buffer is too large,
-so make sure you only write small amounts into your sockets (less than a
-megabyte seems safe, but this apparently depends on the amount of memory
-available).
-
-Due to the many, low, and arbitrary limits on the win32 platform and
-the abysmal performance of winsockets, using a large number of sockets
-is not recommended (and not reasonable). If your program needs to use
-more than a hundred or so sockets, then likely it needs to use a totally
-different implementation for windows, as libev offers the POSIX readiness
-notification model, which cannot be implemented efficiently on windows
-(due to Microsoft monopoly games).
-
-A typical way to use libev under windows is to embed it (see the embedding
-section for details) and use the following F<evwrap.h> header file instead
-of F<ev.h>:
-
-   #define EV_STANDALONE              /* keeps ev from requiring config.h */
-   #define EV_SELECT_IS_WINSOCKET 1   /* configure libev for windows select */
-
-   #include "ev.h"
-
-And compile the following F<evwrap.c> file into your project (make sure
-you do I<not> compile the F<ev.c> or any other embedded source files!):
-
-   #include "evwrap.h"
-   #include "ev.c"
-
-=head3 The winsocket C<select> function
-
-The winsocket C<select> function doesn't follow POSIX in that it
-requires socket I<handles> and not socket I<file descriptors> (it is
-also extremely buggy). This makes select very inefficient, and also
-requires a mapping from file descriptors to socket handles (the Microsoft
-C runtime provides the function C<_open_osfhandle> for this). See the
-discussion of the C<EV_SELECT_USE_FD_SET>, C<EV_SELECT_IS_WINSOCKET> and
-C<EV_FD_TO_WIN32_HANDLE> preprocessor symbols for more info.
-
-The configuration for a "naked" win32 using the Microsoft runtime
-libraries and raw winsocket select is:
-
-   #define EV_USE_SELECT 1
-   #define EV_SELECT_IS_WINSOCKET 1   /* forces EV_SELECT_USE_FD_SET, too */
-
-Note that winsockets handling of fd sets is O(n), so you can easily get a
-complexity in the O(n²) range when using win32.
-
-=head3 Limited number of file descriptors
-
-Windows has numerous arbitrary (and low) limits on things.
-
-Early versions of winsocket's select only supported waiting for a maximum
-of C<64> handles (probably owning to the fact that all windows kernels
-can only wait for C<64> things at the same time internally; Microsoft
-recommends spawning a chain of threads and wait for 63 handles and the
-previous thread in each. Sounds great!).
-
-Newer versions support more handles, but you need to define C<FD_SETSIZE>
-to some high number (e.g. C<2048>) before compiling the winsocket select
-call (which might be in libev or elsewhere, for example, perl and many
-other interpreters do their own select emulation on windows).
-
-Another limit is the number of file descriptors in the Microsoft runtime
-libraries, which by default is C<64> (there must be a hidden I<64>
-fetish or something like this inside Microsoft). You can increase this
-by calling C<_setmaxstdio>, which can increase this limit to C<2048>
-(another arbitrary limit), but is broken in many versions of the Microsoft
-runtime libraries. This might get you to about C<512> or C<2048> sockets
-(depending on windows version and/or the phase of the moon). To get more,
-you need to wrap all I/O functions and provide your own fd management, but
-the cost of calling select (O(n²)) will likely make this unworkable.
-
-=head2 PORTABILITY REQUIREMENTS
-
-In addition to a working ISO-C implementation and of course the
-backend-specific APIs, libev relies on a few additional extensions:
-
-=over 4
-
-=item C<void (*)(ev_watcher_type *, int revents)> must have compatible
-calling conventions regardless of C<ev_watcher_type *>.
-
-Libev assumes not only that all watcher pointers have the same internal
-structure (guaranteed by POSIX but not by ISO C for example), but it also
-assumes that the same (machine) code can be used to call any watcher
-callback: The watcher callbacks have different type signatures, but libev
-calls them using an C<ev_watcher *> internally.
-
-=item pointer accesses must be thread-atomic
-
-Accessing a pointer value must be atomic, it must both be readable and
-writable in one piece - this is the case on all current architectures.
-
-=item C<sig_atomic_t volatile> must be thread-atomic as well
-
-The type C<sig_atomic_t volatile> (or whatever is defined as
-C<EV_ATOMIC_T>) must be atomic with respect to accesses from different
-threads. This is not part of the specification for C<sig_atomic_t>, but is
-believed to be sufficiently portable.
-
-=item C<sigprocmask> must work in a threaded environment
-
-Libev uses C<sigprocmask> to temporarily block signals. This is not
-allowed in a threaded program (C<pthread_sigmask> has to be used). Typical
-pthread implementations will either allow C<sigprocmask> in the "main
-thread" or will block signals process-wide, both behaviours would
-be compatible with libev. Interaction between C<sigprocmask> and
-C<pthread_sigmask> could complicate things, however.
-
-The most portable way to handle signals is to block signals in all threads
-except the initial one, and run the default loop in the initial thread as
-well.
-
-=item C<long> must be large enough for common memory allocation sizes
-
-To improve portability and simplify its API, libev uses C<long> internally
-instead of C<size_t> when allocating its data structures. On non-POSIX
-systems (Microsoft...) this might be unexpectedly low, but is still at
-least 31 bits everywhere, which is enough for hundreds of millions of
-watchers.
-
-=item C<double> must hold a time value in seconds with enough accuracy
-
-The type C<double> is used to represent timestamps. It is required to
-have at least 51 bits of mantissa (and 9 bits of exponent), which is
-good enough for at least into the year 4000 with millisecond accuracy
-(the design goal for libev). This requirement is overfulfilled by
-implementations using IEEE 754, which is basically all existing ones. With
-IEEE 754 doubles, you get microsecond accuracy until at least 2200.
-
-=back
-
-If you know of other additional requirements drop me a note.
-
-
-=head1 ALGORITHMIC COMPLEXITIES
-
-In this section the complexities of (many of) the algorithms used inside
-libev will be documented. For complexity discussions about backends see
-the documentation for C<ev_default_init>.
-
-All of the following are about amortised time: If an array needs to be
-extended, libev needs to realloc and move the whole array, but this
-happens asymptotically rarer with higher number of elements, so O(1) might
-mean that libev does a lengthy realloc operation in rare cases, but on
-average it is much faster and asymptotically approaches constant time.
-
-=over 4
-
-=item Starting and stopping timer/periodic watchers: O(log skipped_other_timers)
-
-This means that, when you have a watcher that triggers in one hour and
-there are 100 watchers that would trigger before that, then inserting will
-have to skip roughly seven (C<ld 100>) of these watchers.
-
-=item Changing timer/periodic watchers (by autorepeat or calling again): O(log skipped_other_timers)
-
-That means that changing a timer costs less than removing/adding them,
-as only the relative motion in the event queue has to be paid for.
-
-=item Starting io/check/prepare/idle/signal/child/fork/async watchers: O(1)
-
-These just add the watcher into an array or at the head of a list.
-
-=item Stopping check/prepare/idle/fork/async watchers: O(1)
-
-=item Stopping an io/signal/child watcher: O(number_of_watchers_for_this_(fd/signal/pid % EV_PID_HASHSIZE))
-
-These watchers are stored in lists, so they need to be walked to find the
-correct watcher to remove. The lists are usually short (you don't usually
-have many watchers waiting for the same fd or signal: one is typical, two
-is rare).
-
-=item Finding the next timer in each loop iteration: O(1)
-
-By virtue of using a binary or 4-heap, the next timer is always found at a
-fixed position in the storage array.
-
-=item Each change on a file descriptor per loop iteration: O(number_of_watchers_for_this_fd)
-
-A change means an I/O watcher gets started or stopped, which requires
-libev to recalculate its status (and possibly tell the kernel, depending
-on backend and whether C<ev_io_set> was used).
-
-=item Activating one watcher (putting it into the pending state): O(1)
-
-=item Priority handling: O(number_of_priorities)
-
-Priorities are implemented by allocating some space for each
-priority. When doing priority-based operations, libev usually has to
-linearly search all the priorities, but starting/stopping and activating
-watchers becomes O(1) with respect to priority handling.
-
-=item Sending an ev_async: O(1)
-
-=item Processing ev_async_send: O(number_of_async_watchers)
-
-=item Processing signals: O(max_signal_number)
-
-Sending involves a system call I<iff> there were no other C<ev_async_send>
-calls in the current loop iteration. Checking for async and signal events
-involves iterating over all running async watchers or all signal numbers.
-
-=back
-
-
-=head1 PORTING FROM LIBEV 3.X TO 4.X
-
-The major version 4 introduced some incompatible changes to the API.
-
-At the moment, the C<ev.h> header file provides compatibility definitions
-for all changes, so most programs should still compile. The compatibility
-layer might be removed in later versions of libev, so better update to the
-new API early than late.
-
-=over 4
-
-=item C<EV_COMPAT3> backwards compatibility mechanism
-
-The backward compatibility mechanism can be controlled by
-C<EV_COMPAT3>. See L<PREPROCESSOR SYMBOLS/MACROS> in the L<EMBEDDING>
-section.
-
-=item C<ev_default_destroy> and C<ev_default_fork> have been removed
-
-These calls can be replaced easily by their C<ev_loop_xxx> counterparts:
-
-   ev_loop_destroy (EV_DEFAULT_UC);
-   ev_loop_fork (EV_DEFAULT);
-
-=item function/symbol renames
-
-A number of functions and symbols have been renamed:
-
-  ev_loop         => ev_run
-  EVLOOP_NONBLOCK => EVRUN_NOWAIT
-  EVLOOP_ONESHOT  => EVRUN_ONCE
-
-  ev_unloop       => ev_break
-  EVUNLOOP_CANCEL => EVBREAK_CANCEL
-  EVUNLOOP_ONE    => EVBREAK_ONE
-  EVUNLOOP_ALL    => EVBREAK_ALL
-
-  EV_TIMEOUT      => EV_TIMER
-
-  ev_loop_count   => ev_iteration
-  ev_loop_depth   => ev_depth
-  ev_loop_verify  => ev_verify
-
-Most functions working on C<struct ev_loop> objects don't have an
-C<ev_loop_> prefix, so it was removed; C<ev_loop>, C<ev_unloop> and
-associated constants have been renamed to not collide with the C<struct
-ev_loop> anymore and C<EV_TIMER> now follows the same naming scheme
-as all other watcher types. Note that C<ev_loop_fork> is still called
-C<ev_loop_fork> because it would otherwise clash with the C<ev_fork>
-typedef.
-
-=item C<EV_MINIMAL> mechanism replaced by C<EV_FEATURES>
-
-The preprocessor symbol C<EV_MINIMAL> has been replaced by a different
-mechanism, C<EV_FEATURES>. Programs using C<EV_MINIMAL> usually compile
-and work, but the library code will of course be larger.
-
-=back
-
-
-=head1 GLOSSARY
-
-=over 4
-
-=item active
-
-A watcher is active as long as it has been started and not yet stopped.
-See L<WATCHER STATES> for details.
-
-=item application
-
-In this document, an application is whatever is using libev.
-
-=item backend
-
-The part of the code dealing with the operating system interfaces.
-
-=item callback
-
-The address of a function that is called when some event has been
-detected. Callbacks are being passed the event loop, the watcher that
-received the event, and the actual event bitset.
-
-=item callback/watcher invocation
-
-The act of calling the callback associated with a watcher.
-
-=item event
-
-A change of state of some external event, such as data now being available
-for reading on a file descriptor, time having passed or simply not having
-any other events happening anymore.
-
-In libev, events are represented as single bits (such as C<EV_READ> or
-C<EV_TIMER>).
-
-=item event library
-
-A software package implementing an event model and loop.
-
-=item event loop
-
-An entity that handles and processes external events and converts them
-into callback invocations.
-
-=item event model
-
-The model used to describe how an event loop handles and processes
-watchers and events.
-
-=item pending
-
-A watcher is pending as soon as the corresponding event has been
-detected. See L<WATCHER STATES> for details.
-
-=item real time
-
-The physical time that is observed. It is apparently strictly monotonic :)
-
-=item wall-clock time
-
-The time and date as shown on clocks. Unlike real time, it can actually
-be wrong and jump forwards and backwards, e.g. when you adjust your
-clock.
-
-=item watcher
-
-A data structure that describes interest in certain events. Watchers need
-to be started (attached to an event loop) before they can receive events.
-
-=back
-
-=head1 AUTHOR
-
-Marc Lehmann <libev@schmorp.de>, with repeated corrections by Mikael
-Magnusson and Emanuele Giaquinta, and minor corrections by many others.
-
diff --git a/deps/uv/src/unix/ev/ev_epoll.c b/deps/uv/src/unix/ev/ev_epoll.c
deleted file mode 100644
index e8101e562f..0000000000
--- a/deps/uv/src/unix/ev/ev_epoll.c
+++ /dev/null
@@ -1,266 +0,0 @@
-/*
- * libev epoll fd activity backend
- *
- * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modifica-
- * tion, are permitted provided that the following conditions are met:
- *
- *   1.  Redistributions of source code must retain the above copyright notice,
- *       this list of conditions and the following disclaimer.
- *
- *   2.  Redistributions in binary form must reproduce the above copyright
- *       notice, this list of conditions and the following disclaimer in the
- *       documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
- * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
- * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
- * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Alternatively, the contents of this file may be used under the terms of
- * the GNU General Public License ("GPL") version 2 or any later version,
- * in which case the provisions of the GPL are applicable instead of
- * the above. If you wish to allow the use of your version of this file
- * only under the terms of the GPL and not to allow others to use your
- * version of this file under the BSD license, indicate your decision
- * by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL. If you do not delete the
- * provisions above, a recipient may use your version of this file under
- * either the BSD or the GPL.
- */
-
-/*
- * general notes about epoll:
- *
- * a) epoll silently removes fds from the fd set. as nothing tells us
- *    that an fd has been removed otherwise, we have to continually
- *    "rearm" fds that we suspect *might* have changed (same
- *    problem with kqueue, but much less costly there).
- * b) the fact that ADD != MOD creates a lot of extra syscalls due to a)
- *    and seems not to have any advantage.
- * c) the inability to handle fork or file descriptors (think dup)
- *    limits the applicability over poll, so this is not a generic
- *    poll replacement.
- * d) epoll doesn't work the same as select with many file descriptors
- *    (such as files). while not critical, no other advanced interface
- *    seems to share this (rather non-unixy) limitation.
- * e) epoll claims to be embeddable, but in practise you never get
- *    a ready event for the epoll fd (broken: <=2.6.26, working: >=2.6.32).
- * f) epoll_ctl returning EPERM means the fd is always ready.
- *
- * lots of "weird code" and complication handling in this file is due
- * to these design problems with epoll, as we try very hard to avoid
- * epoll_ctl syscalls for common usage patterns and handle the breakage
- * ensuing from receiving events for closed and otherwise long gone
- * file descriptors.
- */
-
-#include <sys/epoll.h>
-
-#define EV_EMASK_EPERM 0x80
-
-static void
-epoll_modify (EV_P_ int fd, int oev, int nev)
-{
-  struct epoll_event ev;
-  unsigned char oldmask;
-
-  /*
-   * we handle EPOLL_CTL_DEL by ignoring it here
-   * on the assumption that the fd is gone anyways
-   * if that is wrong, we have to handle the spurious
-   * event in epoll_poll.
-   * if the fd is added again, we try to ADD it, and, if that
-   * fails, we assume it still has the same eventmask.
-   */
-  if (!nev)
-    return;
-
-  oldmask = anfds [fd].emask;
-  anfds [fd].emask = nev;
-
-  /* store the generation counter in the upper 32 bits, the fd in the lower 32 bits */
-  ev.data.u64 = (uint64_t)(uint32_t)fd
-              | ((uint64_t)(uint32_t)++anfds [fd].egen << 32);
-  ev.events   = (nev & EV_READ  ? EPOLLIN  : 0)
-              | (nev & EV_WRITE ? EPOLLOUT : 0);
-
-  if (expect_true (!epoll_ctl (backend_fd, oev && oldmask != nev ? EPOLL_CTL_MOD : EPOLL_CTL_ADD, fd, &ev)))
-    return;
-
-  if (expect_true (errno == ENOENT))
-    {
-      /* if ENOENT then the fd went away, so try to do the right thing */
-      if (!nev)
-        goto dec_egen;
-
-      if (!epoll_ctl (backend_fd, EPOLL_CTL_ADD, fd, &ev))
-        return;
-    }
-  else if (expect_true (errno == EEXIST))
-    {
-      /* EEXIST means we ignored a previous DEL, but the fd is still active */
-      /* if the kernel mask is the same as the new mask, we assume it hasn't changed */
-      if (oldmask == nev)
-        goto dec_egen;
-
-      if (!epoll_ctl (backend_fd, EPOLL_CTL_MOD, fd, &ev))
-        return;
-    }
-  else if (expect_true (errno == EPERM))
-    {
-      /* EPERM means the fd is always ready, but epoll is too snobbish */
-      /* to handle it, unlike select or poll. */
-      anfds [fd].emask = EV_EMASK_EPERM;
-
-      /* add fd to epoll_eperms, if not already inside */
-      if (!(oldmask & EV_EMASK_EPERM))
-        {
-          array_needsize (int, epoll_eperms, epoll_epermmax, epoll_epermcnt + 1, EMPTY2);
-          epoll_eperms [epoll_epermcnt++] = fd;
-        }
-
-      return;
-    }
-
-  fd_kill (EV_A_ fd);
-
-dec_egen:
-  /* we didn't successfully call epoll_ctl, so decrement the generation counter again */
-  --anfds [fd].egen;
-}
-
-static void
-epoll_poll (EV_P_ ev_tstamp timeout)
-{
-  int i;
-  int eventcnt;
-
-  /* epoll wait times cannot be larger than (LONG_MAX - 999UL) / HZ msecs, which is below */
-  /* the default libev max wait time, however. */
-  EV_RELEASE_CB;
-  eventcnt = epoll_wait (backend_fd, epoll_events, epoll_eventmax,
-                         epoll_epermcnt ? 0 : ev_timeout_to_ms (timeout));
-  EV_ACQUIRE_CB;
-
-  if (expect_false (eventcnt < 0))
-    {
-      if (errno != EINTR)
-        ev_syserr ("(libev) epoll_wait");
-
-      return;
-    }
-
-  for (i = 0; i < eventcnt; ++i)
-    {
-      struct epoll_event *ev = epoll_events + i;
-
-      int fd = (uint32_t)ev->data.u64; /* mask out the lower 32 bits */
-      int want = anfds [fd].events;
-      int got  = (ev->events & (EPOLLOUT | EPOLLERR | EPOLLHUP) ? EV_WRITE : 0)
-               | (ev->events & (EPOLLIN  | EPOLLERR | EPOLLHUP) ? EV_READ  : 0);
-
-      /* check for spurious notification */
-      /* we assume that fd is always in range, as we never shrink the anfds array */
-      if (expect_false ((uint32_t)anfds [fd].egen != (uint32_t)(ev->data.u64 >> 32)))
-        {
-          /* recreate kernel state */
-          postfork = 1;
-          continue;
-        }
-
-      if (expect_false (got & ~want))
-        {
-          anfds [fd].emask = want;
-
-          /* we received an event but are not interested in it, try mod or del */
-          /* I don't think we ever need MOD, but let's handle it anyways */
-          ev->events = (want & EV_READ  ? EPOLLIN  : 0)
-                     | (want & EV_WRITE ? EPOLLOUT : 0);
-
-          /* pre-2.6.9 kernels require a non-null pointer with EPOLL_CTL_DEL, */
-          /* which is fortunately easy to do for us. */
-          if (epoll_ctl (backend_fd, want ? EPOLL_CTL_MOD : EPOLL_CTL_DEL, fd, ev))
-            {
-              postfork = 1; /* an error occurred, recreate kernel state */
-              continue;
-            }
-        }
-
-      fd_event (EV_A_ fd, got);
-    }
-
-  /* if the receive array was full, increase its size */
-  if (expect_false (eventcnt == epoll_eventmax))
-    {
-      ev_free (epoll_events);
-      epoll_eventmax = array_nextsize (sizeof (struct epoll_event), epoll_eventmax, epoll_eventmax + 1);
-      epoll_events = (struct epoll_event *)ev_malloc (sizeof (struct epoll_event) * epoll_eventmax);
-    }
-
-  /* now synthesize events for all fds where epoll fails, while select works... */
-  for (i = epoll_epermcnt; i--; )
-    {
-      int fd = epoll_eperms [i];
-      unsigned char events = anfds [fd].events & (EV_READ | EV_WRITE);
-
-      if (anfds [fd].emask & EV_EMASK_EPERM && events)
-        fd_event (EV_A_ fd, events);
-      else
-        epoll_eperms [i] = epoll_eperms [--epoll_epermcnt];
-    }
-}
-
-int inline_size
-epoll_init (EV_P_ int flags)
-{
-#ifdef EPOLL_CLOEXEC
-  backend_fd = epoll_create1 (EPOLL_CLOEXEC);
-
-  if (backend_fd < 0)
-#endif
-    backend_fd = epoll_create (256);
-
-  if (backend_fd < 0)
-    return 0;
-
-  fcntl (backend_fd, F_SETFD, FD_CLOEXEC);
-
-  backend_fudge  = 0.; /* kernel sources seem to indicate this to be zero */
-  backend_modify = epoll_modify;
-  backend_poll   = epoll_poll;
-
-  epoll_eventmax = 64; /* initial number of events receivable per poll */
-  epoll_events = (struct epoll_event *)ev_malloc (sizeof (struct epoll_event) * epoll_eventmax);
-
-  return EVBACKEND_EPOLL;
-}
-
-void inline_size
-epoll_destroy (EV_P)
-{
-  ev_free (epoll_events);
-  array_free (epoll_eperm, EMPTY);
-}
-
-void inline_size
-epoll_fork (EV_P)
-{
-  close (backend_fd);
-
-  while ((backend_fd = epoll_create (256)) < 0)
-    ev_syserr ("(libev) epoll_create");
-
-  fcntl (backend_fd, F_SETFD, FD_CLOEXEC);
-
-  fd_rearm_all (EV_A);
-}
-
diff --git a/deps/uv/src/unix/ev/ev_kqueue.c b/deps/uv/src/unix/ev/ev_kqueue.c
deleted file mode 100644
index 871e771bc2..0000000000
--- a/deps/uv/src/unix/ev/ev_kqueue.c
+++ /dev/null
@@ -1,235 +0,0 @@
-/*
- * libev kqueue backend
- *
- * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modifica-
- * tion, are permitted provided that the following conditions are met:
- *
- *   1.  Redistributions of source code must retain the above copyright notice,
- *       this list of conditions and the following disclaimer.
- *
- *   2.  Redistributions in binary form must reproduce the above copyright
- *       notice, this list of conditions and the following disclaimer in the
- *       documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
- * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
- * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
- * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Alternatively, the contents of this file may be used under the terms of
- * the GNU General Public License ("GPL") version 2 or any later version,
- * in which case the provisions of the GPL are applicable instead of
- * the above. If you wish to allow the use of your version of this file
- * only under the terms of the GPL and not to allow others to use your
- * version of this file under the BSD license, indicate your decision
- * by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL. If you do not delete the
- * provisions above, a recipient may use your version of this file under
- * either the BSD or the GPL.
- */
-
-#include <sys/types.h>
-#include <sys/time.h>
-#include <sys/event.h>
-#include <string.h>
-#include <errno.h>
-
-/* These are the same on OS X and the BSDs. */
-#ifndef NOTE_DELETE
-# define NOTE_DELETE  0x01
-#endif
-#ifndef NOTE_WRITE
-# define NOTE_WRITE 	0x02
-#endif
-#ifndef NOTE_EXTEND
-# define NOTE_EXTEND  0x04
-#endif
-#ifndef NOTE_ATTRIB
-# define NOTE_ATTRIB  0x08
-#endif
-#ifndef NOTE_LINK
-# define NOTE_LINK    0x10
-#endif
-#ifndef NOTE_RENAME
-# define NOTE_RENAME  0x20
-#endif
-#ifndef NOTE_REVOKE
-# define NOTE_REVOKE  0x40
-#endif
-
-
-extern void
-uv__kqueue_hack (EV_P_ int fflags, ev_io *w);
-
-void inline_speed
-kqueue_change (EV_P_ int fd, int filter, int flags, int fflags)
-{
-  ++kqueue_changecnt;
-  array_needsize (struct kevent, kqueue_changes, kqueue_changemax, kqueue_changecnt, EMPTY2);
-
-  EV_SET (&kqueue_changes [kqueue_changecnt - 1], fd, filter, flags, fflags, 0, 0);
-}
-
-/* OS X at least needs this */
-#ifndef EV_ENABLE
-# define EV_ENABLE 0
-#endif
-#ifndef NOTE_EOF
-# define NOTE_EOF 0
-#endif
-
-static void
-kqueue_modify (EV_P_ int fd, int oev, int nev)
-{
-  if (oev != nev)
-    {
-      if (oev & EV_READ)
-        kqueue_change (EV_A_ fd, EVFILT_READ , EV_DELETE, 0);
-
-      if (oev & EV_WRITE)
-        kqueue_change (EV_A_ fd, EVFILT_WRITE, EV_DELETE, 0);
-    }
-
-  /* to detect close/reopen reliably, we have to re-add */
-  /* event requests even when oev == nev */
-
-  if (nev & EV_READ)
-    kqueue_change (EV_A_ fd, EVFILT_READ , EV_ADD | EV_ENABLE, NOTE_EOF);
-
-  if (nev & EV_WRITE)
-    kqueue_change (EV_A_ fd, EVFILT_WRITE, EV_ADD | EV_ENABLE, NOTE_EOF);
-
-  if (nev & EV_LIBUV_KQUEUE_HACK)
-    kqueue_change (EV_A_ fd, EVFILT_VNODE, EV_ADD | EV_ENABLE | EV_ONESHOT,
-      NOTE_ATTRIB | NOTE_WRITE | NOTE_RENAME | NOTE_DELETE | NOTE_EXTEND | NOTE_REVOKE);
-}
-
-static void
-kqueue_poll (EV_P_ ev_tstamp timeout)
-{
-  int res, i;
-  struct timespec ts;
-
-  /* need to resize so there is enough space for errors */
-  if (kqueue_changecnt > kqueue_eventmax)
-    {
-      ev_free (kqueue_events);
-      kqueue_eventmax = array_nextsize (sizeof (struct kevent), kqueue_eventmax, kqueue_changecnt);
-      kqueue_events = (struct kevent *)ev_malloc (sizeof (struct kevent) * kqueue_eventmax);
-    }
-
-  EV_RELEASE_CB;
-  EV_TS_SET (ts, timeout);
-  res = kevent (backend_fd, kqueue_changes, kqueue_changecnt, kqueue_events, kqueue_eventmax, &ts);
-  EV_ACQUIRE_CB;
-  kqueue_changecnt = 0;
-
-  if (expect_false (res < 0))
-    {
-      if (errno != EINTR)
-        ev_syserr ("(libev) kevent");
-
-      return;
-    }
-
-  for (i = 0; i < res; ++i)
-    {
-      int fd = kqueue_events [i].ident;
-
-      if (kqueue_events [i].filter == EVFILT_VNODE)
-        {
-          /* pass kqueue filter flags to libuv */
-          ev_io *w = (ev_io *)(anfds [fd].head);
-          uv__kqueue_hack (EV_A_ kqueue_events [i].fflags, w);
-        }
-
-      if (expect_false (kqueue_events [i].flags & EV_ERROR))
-        {
-          int err = kqueue_events [i].data;
-
-          /* we are only interested in errors for fds that we are interested in :) */
-          if (anfds [fd].events)
-            {
-              if (err == ENOENT) /* resubmit changes on ENOENT */
-                kqueue_modify (EV_A_ fd, 0, anfds [fd].events);
-              else if (err == EBADF) /* on EBADF, we re-check the fd */
-                {
-                  if (fd_valid (fd))
-                    kqueue_modify (EV_A_ fd, 0, anfds [fd].events);
-                  else
-                    fd_kill (EV_A_ fd);
-                }
-              else /* on all other errors, we error out on the fd */
-                fd_kill (EV_A_ fd);
-            }
-        }
-      else
-        fd_event (
-          EV_A_
-          fd,
-          kqueue_events [i].filter == EVFILT_READ ? EV_READ
-          : kqueue_events [i].filter == EVFILT_WRITE ? EV_WRITE
-          : kqueue_events [i].filter == EVFILT_VNODE ? EV_LIBUV_KQUEUE_HACK
-          : 0
-        );
-    }
-
-  if (expect_false (res == kqueue_eventmax))
-    {
-      ev_free (kqueue_events);
-      kqueue_eventmax = array_nextsize (sizeof (struct kevent), kqueue_eventmax, kqueue_eventmax + 1);
-      kqueue_events = (struct kevent *)ev_malloc (sizeof (struct kevent) * kqueue_eventmax);
-    }
-}
-
-int inline_size
-kqueue_init (EV_P_ int flags)
-{
-  /* Initialize the kernel queue */
-  if ((backend_fd = kqueue ()) < 0)
-    return 0;
-
-  fcntl (backend_fd, F_SETFD, FD_CLOEXEC); /* not sure if necessary, hopefully doesn't hurt */
-
-  backend_fudge  = 0.;
-  backend_modify = kqueue_modify;
-  backend_poll   = kqueue_poll;
-
-  kqueue_eventmax = 64; /* initial number of events receivable per poll */
-  kqueue_events = (struct kevent *)ev_malloc (sizeof (struct kevent) * kqueue_eventmax);
-
-  kqueue_changes   = 0;
-  kqueue_changemax = 0;
-  kqueue_changecnt = 0;
-
-  return EVBACKEND_KQUEUE;
-}
-
-void inline_size
-kqueue_destroy (EV_P)
-{
-  ev_free (kqueue_events);
-  ev_free (kqueue_changes);
-}
-
-void inline_size
-kqueue_fork (EV_P)
-{
-  while ((backend_fd = kqueue ()) < 0)
-    ev_syserr ("(libev) kqueue");
-
-  fcntl (backend_fd, F_SETFD, FD_CLOEXEC);
-
-  /* re-register interest in fds */
-  fd_rearm_all (EV_A);
-}
-
diff --git a/deps/uv/src/unix/ev/ev_poll.c b/deps/uv/src/unix/ev/ev_poll.c
deleted file mode 100644
index e53ae0de93..0000000000
--- a/deps/uv/src/unix/ev/ev_poll.c
+++ /dev/null
@@ -1,148 +0,0 @@
-/*
- * libev poll fd activity backend
- *
- * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modifica-
- * tion, are permitted provided that the following conditions are met:
- *
- *   1.  Redistributions of source code must retain the above copyright notice,
- *       this list of conditions and the following disclaimer.
- *
- *   2.  Redistributions in binary form must reproduce the above copyright
- *       notice, this list of conditions and the following disclaimer in the
- *       documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
- * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
- * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
- * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Alternatively, the contents of this file may be used under the terms of
- * the GNU General Public License ("GPL") version 2 or any later version,
- * in which case the provisions of the GPL are applicable instead of
- * the above. If you wish to allow the use of your version of this file
- * only under the terms of the GPL and not to allow others to use your
- * version of this file under the BSD license, indicate your decision
- * by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL. If you do not delete the
- * provisions above, a recipient may use your version of this file under
- * either the BSD or the GPL.
- */
-
-#include <poll.h>
-
-void inline_size
-pollidx_init (int *base, int count)
-{
-  /* consider using memset (.., -1, ...), which is practically guaranteed
-   * to work on all systems implementing poll */
-  while (count--)
-    *base++ = -1;
-}
-
-static void
-poll_modify (EV_P_ int fd, int oev, int nev)
-{
-  int idx;
-
-  if (oev == nev)
-    return;
-
-  array_needsize (int, pollidxs, pollidxmax, fd + 1, pollidx_init);
-
-  idx = pollidxs [fd];
-
-  if (idx < 0) /* need to allocate a new pollfd */
-    {
-      pollidxs [fd] = idx = pollcnt++;
-      array_needsize (struct pollfd, polls, pollmax, pollcnt, EMPTY2);
-      polls [idx].fd = fd;
-    }
-
-  assert (polls [idx].fd == fd);
-
-  if (nev)
-    polls [idx].events =
-        (nev & EV_READ ? POLLIN : 0)
-        | (nev & EV_WRITE ? POLLOUT : 0);
-  else /* remove pollfd */
-    {
-      pollidxs [fd] = -1;
-
-      if (expect_true (idx < --pollcnt))
-        {
-          polls [idx] = polls [pollcnt];
-          pollidxs [polls [idx].fd] = idx;
-        }
-    }
-}
-
-static void
-poll_poll (EV_P_ ev_tstamp timeout)
-{
-  struct pollfd *p;
-  int res;
-  
-  EV_RELEASE_CB;
-  res = poll (polls, pollcnt, ev_timeout_to_ms (timeout));
-  EV_ACQUIRE_CB;
-
-  if (expect_false (res < 0))
-    {
-      if (errno == EBADF)
-        fd_ebadf (EV_A);
-      else if (errno == ENOMEM && !syserr_cb)
-        fd_enomem (EV_A);
-      else if (errno != EINTR)
-        ev_syserr ("(libev) poll");
-    }
-  else
-    for (p = polls; res; ++p)
-      {
-        assert (("libev: poll() returned illegal result, broken BSD kernel?", p < polls + pollcnt));
-
-        if (expect_false (p->revents)) /* this expect is debatable */
-          {
-            --res;
-
-            if (expect_false (p->revents & POLLNVAL))
-              fd_kill (EV_A_ p->fd);
-            else
-              fd_event (
-                EV_A_
-                p->fd,
-                (p->revents & (POLLOUT | POLLERR | POLLHUP) ? EV_WRITE : 0)
-                | (p->revents & (POLLIN | POLLERR | POLLHUP) ? EV_READ : 0)
-              );
-          }
-      }
-}
-
-int inline_size
-poll_init (EV_P_ int flags)
-{
-  backend_fudge  = 0.; /* posix says this is zero */
-  backend_modify = poll_modify;
-  backend_poll   = poll_poll;
-
-  pollidxs = 0; pollidxmax = 0;
-  polls    = 0; pollmax    = 0; pollcnt = 0;
-
-  return EVBACKEND_POLL;
-}
-
-void inline_size
-poll_destroy (EV_P)
-{
-  ev_free (pollidxs);
-  ev_free (polls);
-}
-
diff --git a/deps/uv/src/unix/ev/ev_port.c b/deps/uv/src/unix/ev/ev_port.c
deleted file mode 100644
index 0ffebc3726..0000000000
--- a/deps/uv/src/unix/ev/ev_port.c
+++ /dev/null
@@ -1,179 +0,0 @@
-/*
- * libev solaris event port backend
- *
- * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modifica-
- * tion, are permitted provided that the following conditions are met:
- *
- *   1.  Redistributions of source code must retain the above copyright notice,
- *       this list of conditions and the following disclaimer.
- *
- *   2.  Redistributions in binary form must reproduce the above copyright
- *       notice, this list of conditions and the following disclaimer in the
- *       documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
- * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
- * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
- * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Alternatively, the contents of this file may be used under the terms of
- * the GNU General Public License ("GPL") version 2 or any later version,
- * in which case the provisions of the GPL are applicable instead of
- * the above. If you wish to allow the use of your version of this file
- * only under the terms of the GPL and not to allow others to use your
- * version of this file under the BSD license, indicate your decision
- * by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL. If you do not delete the
- * provisions above, a recipient may use your version of this file under
- * either the BSD or the GPL.
- */
-
-/* useful reading:
- *
- * http://bugs.opensolaris.org/view_bug.do?bug_id=6268715 (random results)
- * http://bugs.opensolaris.org/view_bug.do?bug_id=6455223 (just totally broken)
- * http://bugs.opensolaris.org/view_bug.do?bug_id=6873782 (manpage ETIME)
- * http://bugs.opensolaris.org/view_bug.do?bug_id=6874410 (implementation ETIME)
- * http://www.mail-archive.com/networking-discuss@opensolaris.org/msg11898.html ETIME vs. nget
- * http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/lib/libc/port/gen/event_port.c (libc)
- * http://cvs.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/uts/common/fs/portfs/port.c#1325 (kernel)
- */
-
-#include <sys/types.h>
-#include <sys/time.h>
-#include <poll.h>
-#include <port.h>
-#include <string.h>
-#include <errno.h>
-
-void inline_speed
-port_associate_and_check (EV_P_ int fd, int ev)
-{
-  if (0 >
-      port_associate (
-         backend_fd, PORT_SOURCE_FD, fd,
-         (ev & EV_READ ? POLLIN : 0)
-         | (ev & EV_WRITE ? POLLOUT : 0),
-         0
-      )
-  )
-    {
-      if (errno == EBADFD)
-        fd_kill (EV_A_ fd);
-      else
-        ev_syserr ("(libev) port_associate");
-    }
-}
-
-static void
-port_modify (EV_P_ int fd, int oev, int nev)
-{
-  /* we need to reassociate no matter what, as closes are
-   * once more silently being discarded.
-   */
-  if (!nev)
-    {
-      if (oev)
-        port_dissociate (backend_fd, PORT_SOURCE_FD, fd);
-    }
-  else
-    port_associate_and_check (EV_A_ fd, nev);
-}
-
-static void
-port_poll (EV_P_ ev_tstamp timeout)
-{
-  int res, i;
-  struct timespec ts;
-  uint_t nget = 1;
-
-  /* we initialise this to something we will skip in the loop, as */
-  /* port_getn can return with nget unchanged, but no indication */
-  /* whether it was the original value or has been updated :/ */
-  port_events [0].portev_source = 0;
-
-  EV_RELEASE_CB;
-  EV_TS_SET (ts, timeout);
-  res = port_getn (backend_fd, port_events, port_eventmax, &nget, &ts);
-  EV_ACQUIRE_CB;
-
-  /* port_getn may or may not set nget on error */
-  /* so we rely on port_events [0].portev_source not being updated */
-  if (res == -1 && errno != ETIME && errno != EINTR)
-    ev_syserr ("(libev) port_getn (see http://bugs.opensolaris.org/view_bug.do?bug_id=6268715, try LIBEV_FLAGS=3 env variable)");
-
-  for (i = 0; i < nget; ++i)
-    {
-      if (port_events [i].portev_source == PORT_SOURCE_FD)
-        {
-          int fd = port_events [i].portev_object;
-
-          fd_event (
-            EV_A_
-            fd,
-            (port_events [i].portev_events & (POLLOUT | POLLERR | POLLHUP) ? EV_WRITE : 0)
-            | (port_events [i].portev_events & (POLLIN | POLLERR | POLLHUP) ? EV_READ : 0)
-          );
-
-          fd_change (EV_A_ fd, EV__IOFDSET);
-        }
-    }
-
-  if (expect_false (nget == port_eventmax))
-    {
-      ev_free (port_events);
-      port_eventmax = array_nextsize (sizeof (port_event_t), port_eventmax, port_eventmax + 1);
-      port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax);
-    }
-}
-
-int inline_size
-port_init (EV_P_ int flags)
-{
-  /* Initialize the kernel queue */
-  if ((backend_fd = port_create ()) < 0)
-    return 0;
-
-  assert (("libev: PORT_SOURCE_FD must not be zero", PORT_SOURCE_FD));
-
-  fcntl (backend_fd, F_SETFD, FD_CLOEXEC); /* not sure if necessary, hopefully doesn't hurt */
-
-  backend_fudge  = 1e-3; /* needed to compensate for port_getn returning early */
-  backend_modify = port_modify;
-  backend_poll   = port_poll;
-
-  port_eventmax = 64; /* initial number of events receivable per poll */
-  port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax);
-
-  return EVBACKEND_PORT;
-}
-
-void inline_size
-port_destroy (EV_P)
-{
-  ev_free (port_events);
-}
-
-void inline_size
-port_fork (EV_P)
-{
-  close (backend_fd);
-
-  while ((backend_fd = port_create ()) < 0)
-    ev_syserr ("(libev) port");
-
-  fcntl (backend_fd, F_SETFD, FD_CLOEXEC);
-
-  /* re-register interest in fds */
-  fd_rearm_all (EV_A);
-}
-
diff --git a/deps/uv/src/unix/ev/ev_select.c b/deps/uv/src/unix/ev/ev_select.c
deleted file mode 100644
index 0ea9467e40..0000000000
--- a/deps/uv/src/unix/ev/ev_select.c
+++ /dev/null
@@ -1,310 +0,0 @@
-/*
- * libev select fd activity backend
- *
- * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modifica-
- * tion, are permitted provided that the following conditions are met:
- *
- *   1.  Redistributions of source code must retain the above copyright notice,
- *       this list of conditions and the following disclaimer.
- *
- *   2.  Redistributions in binary form must reproduce the above copyright
- *       notice, this list of conditions and the following disclaimer in the
- *       documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
- * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
- * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
- * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Alternatively, the contents of this file may be used under the terms of
- * the GNU General Public License ("GPL") version 2 or any later version,
- * in which case the provisions of the GPL are applicable instead of
- * the above. If you wish to allow the use of your version of this file
- * only under the terms of the GPL and not to allow others to use your
- * version of this file under the BSD license, indicate your decision
- * by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL. If you do not delete the
- * provisions above, a recipient may use your version of this file under
- * either the BSD or the GPL.
- */
-
-#ifndef _WIN32
-/* for unix systems */
-# include <inttypes.h>
-# ifndef __hpux
-/* for REAL unix systems */
-#  include <sys/select.h>
-# endif
-#endif
-
-#ifndef EV_SELECT_USE_FD_SET
-# ifdef NFDBITS
-#  define EV_SELECT_USE_FD_SET 0
-# else
-#  define EV_SELECT_USE_FD_SET 1
-# endif
-#endif
-
-#if EV_SELECT_IS_WINSOCKET
-# undef EV_SELECT_USE_FD_SET
-# define EV_SELECT_USE_FD_SET 1
-# undef NFDBITS
-# define NFDBITS 0
-#endif
-
-#if !EV_SELECT_USE_FD_SET
-# define NFDBYTES (NFDBITS / 8)
-#endif
-
-#include <string.h>
-
-static void
-select_modify (EV_P_ int fd, int oev, int nev)
-{
-  if (oev == nev)
-    return;
-
-  {
-#if EV_SELECT_USE_FD_SET
-
-    #if EV_SELECT_IS_WINSOCKET
-    SOCKET handle = anfds [fd].handle;
-    #else
-    int handle = fd;
-    #endif
-
-    assert (("libev: fd >= FD_SETSIZE passed to fd_set-based select backend", fd < FD_SETSIZE));
-
-    /* FD_SET is broken on windows (it adds the fd to a set twice or more,
-     * which eventually leads to overflows). Need to call it only on changes.
-     */
-    #if EV_SELECT_IS_WINSOCKET
-    if ((oev ^ nev) & EV_READ)
-    #endif
-      if (nev & EV_READ)
-        FD_SET (handle, (fd_set *)vec_ri);
-      else
-        FD_CLR (handle, (fd_set *)vec_ri);
-
-    #if EV_SELECT_IS_WINSOCKET
-    if ((oev ^ nev) & EV_WRITE)
-    #endif
-      if (nev & EV_WRITE)
-        FD_SET (handle, (fd_set *)vec_wi);
-      else
-        FD_CLR (handle, (fd_set *)vec_wi);
-
-#else
-
-    int     word = fd / NFDBITS;
-    fd_mask mask = 1UL << (fd % NFDBITS);
-
-    if (expect_false (vec_max <= word))
-      {
-        int new_max = word + 1;
-
-        vec_ri = ev_realloc (vec_ri, new_max * NFDBYTES);
-        vec_ro = ev_realloc (vec_ro, new_max * NFDBYTES); /* could free/malloc */
-        vec_wi = ev_realloc (vec_wi, new_max * NFDBYTES);
-        vec_wo = ev_realloc (vec_wo, new_max * NFDBYTES); /* could free/malloc */
-        #ifdef _WIN32
-        vec_eo = ev_realloc (vec_eo, new_max * NFDBYTES); /* could free/malloc */
-        #endif
-
-        for (; vec_max < new_max; ++vec_max)
-          ((fd_mask *)vec_ri) [vec_max] =
-          ((fd_mask *)vec_wi) [vec_max] = 0;
-      }
-
-    ((fd_mask *)vec_ri) [word] |= mask;
-    if (!(nev & EV_READ))
-      ((fd_mask *)vec_ri) [word] &= ~mask;
-
-    ((fd_mask *)vec_wi) [word] |= mask;
-    if (!(nev & EV_WRITE))
-      ((fd_mask *)vec_wi) [word] &= ~mask;
-#endif
-  }
-}
-
-static void
-select_poll (EV_P_ ev_tstamp timeout)
-{
-  struct timeval tv;
-  int res;
-  int fd_setsize;
-
-  EV_RELEASE_CB;
-  EV_TV_SET (tv, timeout);
-
-#if EV_SELECT_USE_FD_SET
-  fd_setsize = sizeof (fd_set);
-#else
-  fd_setsize = vec_max * NFDBYTES;
-#endif
-
-  memcpy (vec_ro, vec_ri, fd_setsize);
-  memcpy (vec_wo, vec_wi, fd_setsize);
-
-#ifdef _WIN32
-  /* pass in the write set as except set.
-   * the idea behind this is to work around a windows bug that causes
-   * errors to be reported as an exception and not by setting
-   * the writable bit. this is so uncontrollably lame.
-   */
-  memcpy (vec_eo, vec_wi, fd_setsize);
-  res = select (vec_max * NFDBITS, (fd_set *)vec_ro, (fd_set *)vec_wo, (fd_set *)vec_eo, &tv);
-#elif EV_SELECT_USE_FD_SET
-  fd_setsize = anfdmax < FD_SETSIZE ? anfdmax : FD_SETSIZE;
-  res = select (fd_setsize, (fd_set *)vec_ro, (fd_set *)vec_wo, 0, &tv);
-#else
-  res = select (vec_max * NFDBITS, (fd_set *)vec_ro, (fd_set *)vec_wo, 0, &tv);
-#endif
-  EV_ACQUIRE_CB;
-
-  if (expect_false (res < 0))
-    {
-      #if EV_SELECT_IS_WINSOCKET
-      errno = WSAGetLastError ();
-      #endif
-      #ifdef WSABASEERR
-      /* on windows, select returns incompatible error codes, fix this */
-      if (errno >= WSABASEERR && errno < WSABASEERR + 1000)
-        if (errno == WSAENOTSOCK)
-          errno = EBADF;
-        else
-          errno -= WSABASEERR;
-      #endif
-
-      #ifdef _WIN32
-      /* select on windows erroneously returns EINVAL when no fd sets have been
-       * provided (this is documented). what microsoft doesn't tell you that this bug
-       * exists even when the fd sets _are_ provided, so we have to check for this bug
-       * here and emulate by sleeping manually.
-       * we also get EINVAL when the timeout is invalid, but we ignore this case here
-       * and assume that EINVAL always means: you have to wait manually.
-       */
-      if (errno == EINVAL)
-        {
-          ev_sleep (timeout);
-          return;
-        }
-      #endif
-
-      if (errno == EBADF)
-        fd_ebadf (EV_A);
-      else if (errno == ENOMEM && !syserr_cb)
-        fd_enomem (EV_A);
-      else if (errno != EINTR)
-        ev_syserr ("(libev) select");
-
-      return;
-    }
-
-#if EV_SELECT_USE_FD_SET
-
-  {
-    int fd;
-
-    for (fd = 0; fd < anfdmax; ++fd)
-      if (anfds [fd].events)
-        {
-          int events = 0;
-          #if EV_SELECT_IS_WINSOCKET
-          SOCKET handle = anfds [fd].handle;
-          #else
-          int handle = fd;
-          #endif
-
-          if (FD_ISSET (handle, (fd_set *)vec_ro)) events |= EV_READ;
-          if (FD_ISSET (handle, (fd_set *)vec_wo)) events |= EV_WRITE;
-          #ifdef _WIN32
-          if (FD_ISSET (handle, (fd_set *)vec_eo)) events |= EV_WRITE;
-          #endif
-
-          if (expect_true (events))
-            fd_event (EV_A_ fd, events);
-        }
-  }
-
-#else
-
-  {
-    int word, bit;
-    for (word = vec_max; word--; )
-      {
-        fd_mask word_r = ((fd_mask *)vec_ro) [word];
-        fd_mask word_w = ((fd_mask *)vec_wo) [word];
-        #ifdef _WIN32
-        word_w |= ((fd_mask *)vec_eo) [word];
-        #endif
-
-        if (word_r || word_w)
-          for (bit = NFDBITS; bit--; )
-            {
-              fd_mask mask = 1UL << bit;
-              int events = 0;
-
-              events |= word_r & mask ? EV_READ  : 0;
-              events |= word_w & mask ? EV_WRITE : 0;
-
-              if (expect_true (events))
-                fd_event (EV_A_ word * NFDBITS + bit, events);
-            }
-      }
-  }
-
-#endif
-}
-
-int inline_size
-select_init (EV_P_ int flags)
-{
-  backend_fudge  = 0.; /* posix says this is zero */
-  backend_modify = select_modify;
-  backend_poll   = select_poll;
-
-#if EV_SELECT_USE_FD_SET
-  vec_ri  = ev_malloc (sizeof (fd_set)); FD_ZERO ((fd_set *)vec_ri);
-  vec_ro  = ev_malloc (sizeof (fd_set));
-  vec_wi  = ev_malloc (sizeof (fd_set)); FD_ZERO ((fd_set *)vec_wi);
-  vec_wo  = ev_malloc (sizeof (fd_set));
-  #ifdef _WIN32
-  vec_eo  = ev_malloc (sizeof (fd_set));
-  #endif
-#else
-  vec_max = 0;
-  vec_ri  = 0;
-  vec_ro  = 0;
-  vec_wi  = 0;
-  vec_wo  = 0;
-  #ifdef _WIN32
-  vec_eo  = 0;
-  #endif
-#endif
-
-  return EVBACKEND_SELECT;
-}
-
-void inline_size
-select_destroy (EV_P)
-{
-  ev_free (vec_ri);
-  ev_free (vec_ro);
-  ev_free (vec_wi);
-  ev_free (vec_wo);
-  #ifdef _WIN32
-  ev_free (vec_eo);
-  #endif
-}
-
-
diff --git a/deps/uv/src/unix/ev/ev_vars.h b/deps/uv/src/unix/ev/ev_vars.h
deleted file mode 100644
index 5ee3ed1b2a..0000000000
--- a/deps/uv/src/unix/ev/ev_vars.h
+++ /dev/null
@@ -1,203 +0,0 @@
-/*
- * loop member variable declarations
- *
- * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modifica-
- * tion, are permitted provided that the following conditions are met:
- *
- *   1.  Redistributions of source code must retain the above copyright notice,
- *       this list of conditions and the following disclaimer.
- *
- *   2.  Redistributions in binary form must reproduce the above copyright
- *       notice, this list of conditions and the following disclaimer in the
- *       documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
- * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
- * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
- * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Alternatively, the contents of this file may be used under the terms of
- * the GNU General Public License ("GPL") version 2 or any later version,
- * in which case the provisions of the GPL are applicable instead of
- * the above. If you wish to allow the use of your version of this file
- * only under the terms of the GPL and not to allow others to use your
- * version of this file under the BSD license, indicate your decision
- * by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL. If you do not delete the
- * provisions above, a recipient may use your version of this file under
- * either the BSD or the GPL.
- */
-
-#define VARx(type,name) VAR(name, type name)
-
-VARx(ev_tstamp, now_floor) /* last time we refreshed rt_time */
-VARx(ev_tstamp, mn_now)    /* monotonic clock "now" */
-VARx(ev_tstamp, rtmn_diff) /* difference realtime - monotonic time */
-
-VARx(ev_tstamp, io_blocktime)
-VARx(ev_tstamp, timeout_blocktime)
-
-VARx(int, backend)
-VARx(int, activecnt) /* total number of active events ("refcount") */
-VARx(EV_ATOMIC_T, loop_done)  /* signal by ev_break */
-
-VARx(int, backend_fd)
-VARx(ev_tstamp, backend_fudge) /* assumed typical timer resolution */
-VAR (backend_modify, void (*backend_modify)(EV_P_ int fd, int oev, int nev))
-VAR (backend_poll  , void (*backend_poll)(EV_P_ ev_tstamp timeout))
-
-VARx(ANFD *, anfds)
-VARx(int, anfdmax)
-
-VAR (pendings, ANPENDING *pendings [NUMPRI])
-VAR (pendingmax, int pendingmax [NUMPRI])
-VAR (pendingcnt, int pendingcnt [NUMPRI])
-VARx(ev_prepare, pending_w) /* dummy pending watcher */
-
-/* for reverse feeding of events */
-VARx(W *, rfeeds)
-VARx(int, rfeedmax)
-VARx(int, rfeedcnt)
-
-#if EV_USE_EVENTFD || EV_GENWRAP
-VARx(int, evfd)
-#endif
-VAR (evpipe, int evpipe [2])
-VARx(ev_io, pipe_w)
-
-#if !defined(_WIN32) || EV_GENWRAP
-VARx(pid_t, curpid)
-#endif
-
-VARx(char, postfork)  /* true if we need to recreate kernel state after fork */
-
-#if EV_USE_SELECT || EV_GENWRAP
-VARx(void *, vec_ri)
-VARx(void *, vec_ro)
-VARx(void *, vec_wi)
-VARx(void *, vec_wo)
-#if defined(_WIN32) || EV_GENWRAP
-VARx(void *, vec_eo)
-#endif
-VARx(int, vec_max)
-#endif
-
-#if EV_USE_POLL || EV_GENWRAP
-VARx(struct pollfd *, polls)
-VARx(int, pollmax)
-VARx(int, pollcnt)
-VARx(int *, pollidxs) /* maps fds into structure indices */
-VARx(int, pollidxmax)
-#endif
-
-#if EV_USE_EPOLL || EV_GENWRAP
-VARx(struct epoll_event *, epoll_events)
-VARx(int, epoll_eventmax)
-VARx(int *, epoll_eperms)
-VARx(int, epoll_epermcnt)
-VARx(int, epoll_epermmax)
-#endif
-
-#if EV_USE_KQUEUE || EV_GENWRAP
-VARx(struct kevent *, kqueue_changes)
-VARx(int, kqueue_changemax)
-VARx(int, kqueue_changecnt)
-VARx(struct kevent *, kqueue_events)
-VARx(int, kqueue_eventmax)
-#endif
-
-#if EV_USE_PORT || EV_GENWRAP
-VARx(struct port_event *, port_events)
-VARx(int, port_eventmax)
-#endif
-
-#if EV_USE_IOCP || EV_GENWRAP
-VARx(HANDLE, iocp)
-#endif
-
-VARx(int *, fdchanges)
-VARx(int, fdchangemax)
-VARx(int, fdchangecnt)
-
-VARx(ANHE *, timers)
-VARx(int, timermax)
-VARx(int, timercnt)
-
-#if EV_PERIODIC_ENABLE || EV_GENWRAP
-VARx(ANHE *, periodics)
-VARx(int, periodicmax)
-VARx(int, periodiccnt)
-#endif
-
-#if EV_IDLE_ENABLE || EV_GENWRAP
-VAR (idles, ev_idle **idles [NUMPRI])
-VAR (idlemax, int idlemax [NUMPRI])
-VAR (idlecnt, int idlecnt [NUMPRI])
-#endif
-VARx(int, idleall) /* total number */
-
-VARx(struct ev_prepare **, prepares)
-VARx(int, preparemax)
-VARx(int, preparecnt)
-
-VARx(struct ev_check **, checks)
-VARx(int, checkmax)
-VARx(int, checkcnt)
-
-#if EV_FORK_ENABLE || EV_GENWRAP
-VARx(struct ev_fork **, forks)
-VARx(int, forkmax)
-VARx(int, forkcnt)
-#endif
-
-#if EV_CLEANUP_ENABLE || EV_GENWRAP
-VARx(struct ev_cleanup **, cleanups)
-VARx(int, cleanupmax)
-VARx(int, cleanupcnt)
-#endif
-
-#if EV_ASYNC_ENABLE || EV_GENWRAP
-VARx(EV_ATOMIC_T, async_pending)
-VARx(struct ev_async **, asyncs)
-VARx(int, asyncmax)
-VARx(int, asynccnt)
-#endif
-
-#if EV_USE_INOTIFY || EV_GENWRAP
-VARx(int, fs_fd)
-VARx(ev_io, fs_w)
-VARx(char, fs_2625) /* whether we are running in linux 2.6.25 or newer */
-VAR (fs_hash, ANFS fs_hash [EV_INOTIFY_HASHSIZE])
-#endif
-
-VARx(EV_ATOMIC_T, sig_pending)
-VARx(int, nosigmask)
-#if EV_USE_SIGNALFD || EV_GENWRAP
-VARx(int, sigfd)
-VARx(ev_io, sigfd_w)
-VARx(sigset_t, sigfd_set)
-#endif
-
-VARx(unsigned int, origflags) /* original loop flags */
-
-#if EV_FEATURE_API || EV_GENWRAP
-VARx(unsigned int, loop_count) /* total number of loop iterations/blocks */
-VARx(unsigned int, loop_depth) /* #ev_run enters - #ev_run leaves */
-
-VARx(void *, userdata)
-VAR (release_cb, void (*release_cb)(EV_P))
-VAR (acquire_cb, void (*acquire_cb)(EV_P))
-VAR (invoke_cb , void (*invoke_cb) (EV_P))
-#endif
-
-#undef VARx
-
diff --git a/deps/uv/src/unix/ev/ev_win32.c b/deps/uv/src/unix/ev/ev_win32.c
deleted file mode 100644
index 338886efe4..0000000000
--- a/deps/uv/src/unix/ev/ev_win32.c
+++ /dev/null
@@ -1,153 +0,0 @@
-/*
- * libev win32 compatibility cruft (_not_ a backend)
- *
- * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modifica-
- * tion, are permitted provided that the following conditions are met:
- *
- *   1.  Redistributions of source code must retain the above copyright notice,
- *       this list of conditions and the following disclaimer.
- *
- *   2.  Redistributions in binary form must reproduce the above copyright
- *       notice, this list of conditions and the following disclaimer in the
- *       documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
- * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
- * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
- * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Alternatively, the contents of this file may be used under the terms of
- * the GNU General Public License ("GPL") version 2 or any later version,
- * in which case the provisions of the GPL are applicable instead of
- * the above. If you wish to allow the use of your version of this file
- * only under the terms of the GPL and not to allow others to use your
- * version of this file under the BSD license, indicate your decision
- * by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL. If you do not delete the
- * provisions above, a recipient may use your version of this file under
- * either the BSD or the GPL.
- */
-
-#ifdef _WIN32
-
-/* timeb.h is actually xsi legacy functionality */
-#include <sys/timeb.h>
-
-/* note: the comment below could not be substantiated, but what would I care */
-/* MSDN says this is required to handle SIGFPE */
-/* my wild guess would be that using something floating-pointy is required */
-/* for the crt to do something about it */
-volatile double SIGFPE_REQ = 0.0f;
-
-/* oh, the humanity! */
-static int
-ev_pipe (int filedes [2])
-{
-  struct sockaddr_in addr = { 0 };
-  int addr_size = sizeof (addr);
-  struct sockaddr_in adr2;
-  int adr2_size = sizeof (adr2);
-  SOCKET listener;
-  SOCKET sock [2] = { -1, -1 };
-
-  if ((listener = socket (AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET)
-    return -1;
-
-  addr.sin_family = AF_INET;
-  addr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
-  addr.sin_port = 0;
-
-  if (bind (listener, (struct sockaddr *)&addr, addr_size))
-    goto fail;
-
-  if (getsockname (listener, (struct sockaddr *)&addr, &addr_size))
-    goto fail;
-
-  if (listen (listener, 1))
-    goto fail;
-
-  if ((sock [0] = socket (AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET)
-    goto fail;
-
-  if (connect (sock [0], (struct sockaddr *)&addr, addr_size))
-    goto fail;
-
-  if ((sock [1] = accept (listener, 0, 0)) < 0)
-    goto fail;
-
-  /* windows vista returns fantasy port numbers for sockets:
-   * example for two interconnected tcp sockets:
-   *
-   * (Socket::unpack_sockaddr_in getsockname $sock0)[0] == 53364
-   * (Socket::unpack_sockaddr_in getpeername $sock0)[0] == 53363
-   * (Socket::unpack_sockaddr_in getsockname $sock1)[0] == 53363
-   * (Socket::unpack_sockaddr_in getpeername $sock1)[0] == 53365
-   *
-   * wow! tridirectional sockets!
-   *
-   * this way of checking ports seems to work:
-   */
-  if (getpeername (sock [0], (struct sockaddr *)&addr, &addr_size))
-    goto fail;
-
-  if (getsockname (sock [1], (struct sockaddr *)&adr2, &adr2_size))
-    goto fail;
-
-  errno = WSAEINVAL;
-  if (addr_size != adr2_size
-      || addr.sin_addr.s_addr != adr2.sin_addr.s_addr /* just to be sure, I mean, it's windows */
-      || addr.sin_port        != adr2.sin_port)
-    goto fail;
-
-  closesocket (listener);
-
-#if EV_SELECT_IS_WINSOCKET
-  filedes [0] = EV_WIN32_HANDLE_TO_FD (sock [0]);
-  filedes [1] = EV_WIN32_HANDLE_TO_FD (sock [1]);
-#else
-  /* when select isn't winsocket, we also expect socket, connect, accept etc.
-   * to work on fds */
-  filedes [0] = sock [0];
-  filedes [1] = sock [1];
-#endif
-
-  return 0;
-
-fail:
-  closesocket (listener);
-
-  if (sock [0] != INVALID_SOCKET) closesocket (sock [0]);
-  if (sock [1] != INVALID_SOCKET) closesocket (sock [1]);
-
-  return -1;
-}
-
-#undef pipe
-#define pipe(filedes) ev_pipe (filedes)
-  
-#define EV_HAVE_EV_TIME 1
-ev_tstamp
-ev_time (void)
-{
-  FILETIME ft;
-  ULARGE_INTEGER ui;
-
-  GetSystemTimeAsFileTime (&ft);
-  ui.u.LowPart  = ft.dwLowDateTime;
-  ui.u.HighPart = ft.dwHighDateTime;
-
-  /* msvc cannot convert ulonglong to double... yes, it is that sucky */
-  return (LONGLONG)(ui.QuadPart - 116444736000000000) * 1e-7;
-}
-
-#endif
-
diff --git a/deps/uv/src/unix/ev/ev_wrap.h b/deps/uv/src/unix/ev/ev_wrap.h
deleted file mode 100644
index 2c195c5db4..0000000000
--- a/deps/uv/src/unix/ev/ev_wrap.h
+++ /dev/null
@@ -1,196 +0,0 @@
-/* DO NOT EDIT, automatically generated by update_ev_wrap */
-#ifndef EV_WRAP_H
-#define EV_WRAP_H
-#define now_floor ((loop)->now_floor)
-#define mn_now ((loop)->mn_now)
-#define rtmn_diff ((loop)->rtmn_diff)
-#define io_blocktime ((loop)->io_blocktime)
-#define timeout_blocktime ((loop)->timeout_blocktime)
-#define backend ((loop)->backend)
-#define activecnt ((loop)->activecnt)
-#define loop_done ((loop)->loop_done)
-#define backend_fd ((loop)->backend_fd)
-#define backend_fudge ((loop)->backend_fudge)
-#define backend_modify ((loop)->backend_modify)
-#define backend_poll ((loop)->backend_poll)
-#define anfds ((loop)->anfds)
-#define anfdmax ((loop)->anfdmax)
-#define pendings ((loop)->pendings)
-#define pendingmax ((loop)->pendingmax)
-#define pendingcnt ((loop)->pendingcnt)
-#define pending_w ((loop)->pending_w)
-#define rfeeds ((loop)->rfeeds)
-#define rfeedmax ((loop)->rfeedmax)
-#define rfeedcnt ((loop)->rfeedcnt)
-#define evfd ((loop)->evfd)
-#define evpipe ((loop)->evpipe)
-#define pipe_w ((loop)->pipe_w)
-#define curpid ((loop)->curpid)
-#define postfork ((loop)->postfork)
-#define vec_ri ((loop)->vec_ri)
-#define vec_ro ((loop)->vec_ro)
-#define vec_wi ((loop)->vec_wi)
-#define vec_wo ((loop)->vec_wo)
-#define vec_eo ((loop)->vec_eo)
-#define vec_max ((loop)->vec_max)
-#define polls ((loop)->polls)
-#define pollmax ((loop)->pollmax)
-#define pollcnt ((loop)->pollcnt)
-#define pollidxs ((loop)->pollidxs)
-#define pollidxmax ((loop)->pollidxmax)
-#define epoll_events ((loop)->epoll_events)
-#define epoll_eventmax ((loop)->epoll_eventmax)
-#define epoll_eperms ((loop)->epoll_eperms)
-#define epoll_epermcnt ((loop)->epoll_epermcnt)
-#define epoll_epermmax ((loop)->epoll_epermmax)
-#define kqueue_changes ((loop)->kqueue_changes)
-#define kqueue_changemax ((loop)->kqueue_changemax)
-#define kqueue_changecnt ((loop)->kqueue_changecnt)
-#define kqueue_events ((loop)->kqueue_events)
-#define kqueue_eventmax ((loop)->kqueue_eventmax)
-#define port_events ((loop)->port_events)
-#define port_eventmax ((loop)->port_eventmax)
-#define iocp ((loop)->iocp)
-#define fdchanges ((loop)->fdchanges)
-#define fdchangemax ((loop)->fdchangemax)
-#define fdchangecnt ((loop)->fdchangecnt)
-#define timers ((loop)->timers)
-#define timermax ((loop)->timermax)
-#define timercnt ((loop)->timercnt)
-#define periodics ((loop)->periodics)
-#define periodicmax ((loop)->periodicmax)
-#define periodiccnt ((loop)->periodiccnt)
-#define idles ((loop)->idles)
-#define idlemax ((loop)->idlemax)
-#define idlecnt ((loop)->idlecnt)
-#define idleall ((loop)->idleall)
-#define prepares ((loop)->prepares)
-#define preparemax ((loop)->preparemax)
-#define preparecnt ((loop)->preparecnt)
-#define checks ((loop)->checks)
-#define checkmax ((loop)->checkmax)
-#define checkcnt ((loop)->checkcnt)
-#define forks ((loop)->forks)
-#define forkmax ((loop)->forkmax)
-#define forkcnt ((loop)->forkcnt)
-#define cleanups ((loop)->cleanups)
-#define cleanupmax ((loop)->cleanupmax)
-#define cleanupcnt ((loop)->cleanupcnt)
-#define async_pending ((loop)->async_pending)
-#define asyncs ((loop)->asyncs)
-#define asyncmax ((loop)->asyncmax)
-#define asynccnt ((loop)->asynccnt)
-#define fs_fd ((loop)->fs_fd)
-#define fs_w ((loop)->fs_w)
-#define fs_2625 ((loop)->fs_2625)
-#define fs_hash ((loop)->fs_hash)
-#define sig_pending ((loop)->sig_pending)
-#define nosigmask ((loop)->nosigmask)
-#define sigfd ((loop)->sigfd)
-#define sigfd_w ((loop)->sigfd_w)
-#define sigfd_set ((loop)->sigfd_set)
-#define origflags ((loop)->origflags)
-#define loop_count ((loop)->loop_count)
-#define loop_depth ((loop)->loop_depth)
-#define userdata ((loop)->userdata)
-#define release_cb ((loop)->release_cb)
-#define acquire_cb ((loop)->acquire_cb)
-#define invoke_cb ((loop)->invoke_cb)
-#else
-#undef EV_WRAP_H
-#undef now_floor
-#undef mn_now
-#undef rtmn_diff
-#undef io_blocktime
-#undef timeout_blocktime
-#undef backend
-#undef activecnt
-#undef loop_done
-#undef backend_fd
-#undef backend_fudge
-#undef backend_modify
-#undef backend_poll
-#undef anfds
-#undef anfdmax
-#undef pendings
-#undef pendingmax
-#undef pendingcnt
-#undef pending_w
-#undef rfeeds
-#undef rfeedmax
-#undef rfeedcnt
-#undef evfd
-#undef evpipe
-#undef pipe_w
-#undef curpid
-#undef postfork
-#undef vec_ri
-#undef vec_ro
-#undef vec_wi
-#undef vec_wo
-#undef vec_eo
-#undef vec_max
-#undef polls
-#undef pollmax
-#undef pollcnt
-#undef pollidxs
-#undef pollidxmax
-#undef epoll_events
-#undef epoll_eventmax
-#undef epoll_eperms
-#undef epoll_epermcnt
-#undef epoll_epermmax
-#undef kqueue_changes
-#undef kqueue_changemax
-#undef kqueue_changecnt
-#undef kqueue_events
-#undef kqueue_eventmax
-#undef port_events
-#undef port_eventmax
-#undef iocp
-#undef fdchanges
-#undef fdchangemax
-#undef fdchangecnt
-#undef timers
-#undef timermax
-#undef timercnt
-#undef periodics
-#undef periodicmax
-#undef periodiccnt
-#undef idles
-#undef idlemax
-#undef idlecnt
-#undef idleall
-#undef prepares
-#undef preparemax
-#undef preparecnt
-#undef checks
-#undef checkmax
-#undef checkcnt
-#undef forks
-#undef forkmax
-#undef forkcnt
-#undef cleanups
-#undef cleanupmax
-#undef cleanupcnt
-#undef async_pending
-#undef asyncs
-#undef asyncmax
-#undef asynccnt
-#undef fs_fd
-#undef fs_w
-#undef fs_2625
-#undef fs_hash
-#undef sig_pending
-#undef nosigmask
-#undef sigfd
-#undef sigfd_w
-#undef sigfd_set
-#undef origflags
-#undef loop_count
-#undef loop_depth
-#undef userdata
-#undef release_cb
-#undef acquire_cb
-#undef invoke_cb
-#endif
diff --git a/deps/uv/src/unix/ev/event.c b/deps/uv/src/unix/ev/event.c
deleted file mode 100644
index aaf6d534ca..0000000000
--- a/deps/uv/src/unix/ev/event.c
+++ /dev/null
@@ -1,402 +0,0 @@
-/*
- * libevent compatibility layer
- *
- * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modifica-
- * tion, are permitted provided that the following conditions are met:
- *
- *   1.  Redistributions of source code must retain the above copyright notice,
- *       this list of conditions and the following disclaimer.
- *
- *   2.  Redistributions in binary form must reproduce the above copyright
- *       notice, this list of conditions and the following disclaimer in the
- *       documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
- * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
- * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
- * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Alternatively, the contents of this file may be used under the terms of
- * the GNU General Public License ("GPL") version 2 or any later version,
- * in which case the provisions of the GPL are applicable instead of
- * the above. If you wish to allow the use of your version of this file
- * only under the terms of the GPL and not to allow others to use your
- * version of this file under the BSD license, indicate your decision
- * by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL. If you do not delete the
- * provisions above, a recipient may use your version of this file under
- * either the BSD or the GPL.
- */
-
-#include <stddef.h>
-#include <stdlib.h>
-#include <assert.h>
-
-#ifdef EV_EVENT_H
-# include EV_EVENT_H
-#else
-# include "event.h"
-#endif
-
-#if EV_MULTIPLICITY
-# define dLOOPev struct ev_loop *loop = (struct ev_loop *)ev->ev_base
-# define dLOOPbase struct ev_loop *loop = (struct ev_loop *)base
-#else
-# define dLOOPev
-# define dLOOPbase
-#endif
-
-/* never accessed, will always be cast from/to ev_loop */
-struct event_base
-{
-  int dummy;
-};
-
-static struct event_base *ev_x_cur;
-
-static ev_tstamp
-ev_tv_get (struct timeval *tv)
-{
-  if (tv)
-    {
-      ev_tstamp after = tv->tv_sec + tv->tv_usec * 1e-6;
-      return after ? after : 1e-6;
-    }
-  else
-    return -1.;
-}
-
-#define EVENT_STRINGIFY(s) # s
-#define EVENT_VERSION(a,b) EVENT_STRINGIFY (a) "." EVENT_STRINGIFY (b)
-
-const char *event_get_version (void)
-{
-  /* returns ABI, not API or library, version */
-  return EVENT_VERSION (EV_VERSION_MAJOR, EV_VERSION_MINOR);
-}
-
-const char *event_get_method (void)
-{
-  return "libev";
-}
-
-void *event_init (void)
-{
-#if EV_MULTIPLICITY
-  if (ev_x_cur)
-    ev_x_cur = (struct event_base *)ev_loop_new (EVFLAG_AUTO);
-  else
-    ev_x_cur = (struct event_base *)ev_default_loop (EVFLAG_AUTO);
-#else
-  assert (("libev: multiple event bases not supported when not compiled with EV_MULTIPLICITY", !ev_x_cur));
-
-  ev_x_cur = (struct event_base *)(long)ev_default_loop (EVFLAG_AUTO);
-#endif
-
-  return ev_x_cur;
-}
-
-void event_base_free (struct event_base *base)
-{
-  dLOOPbase;
-
-#if EV_MULTIPLICITY
-  if (!ev_is_default_loop (loop))
-    ev_loop_destroy (loop);
-#endif
-}
-
-int event_dispatch (void)
-{
-  return event_base_dispatch (ev_x_cur);
-}
-
-#ifdef EV_STANDALONE
-void event_set_log_callback (event_log_cb cb)
-{
-  /* nop */
-}
-#endif
-
-int event_loop (int flags)
-{
-  return event_base_loop (ev_x_cur, flags);
-}
-
-int event_loopexit (struct timeval *tv)
-{
-  return event_base_loopexit (ev_x_cur, tv);
-}
-
-static void
-ev_x_cb (struct event *ev, int revents)
-{
-  revents &= EV_READ | EV_WRITE | EV_TIMER | EV_SIGNAL;
-
-  ev->ev_res = revents;
-  ev->ev_callback (ev->ev_fd, (short)revents, ev->ev_arg);
-}
-
-static void
-ev_x_cb_sig (EV_P_ struct ev_signal *w, int revents)
-{
-  struct event *ev = (struct event *)(((char *)w) - offsetof (struct event, iosig.sig));
-
-  if (revents & EV_ERROR)
-    event_del (ev);
-
-  ev_x_cb (ev, revents);
-}
-
-static void
-ev_x_cb_io (EV_P_ struct ev_io *w, int revents)
-{
-  struct event *ev = (struct event *)(((char *)w) - offsetof (struct event, iosig.io));
-
-  if ((revents & EV_ERROR) || !(ev->ev_events & EV_PERSIST))
-    event_del (ev);
-
-  ev_x_cb (ev, revents);
-}
-
-static void
-ev_x_cb_to (EV_P_ struct ev_timer *w, int revents)
-{
-  struct event *ev = (struct event *)(((char *)w) - offsetof (struct event, to));
-
-  event_del (ev);
-
-  ev_x_cb (ev, revents);
-}
-
-void event_set (struct event *ev, int fd, short events, void (*cb)(int, short, void *), void *arg)
-{
-  if (events & EV_SIGNAL)
-    ev_init (&ev->iosig.sig, ev_x_cb_sig);
-  else
-    ev_init (&ev->iosig.io, ev_x_cb_io);
-
-  ev_init (&ev->to, ev_x_cb_to);
-
-  ev->ev_base     = ev_x_cur; /* not threadsafe, but it's how libevent works */
-  ev->ev_fd       = fd;
-  ev->ev_events   = events;
-  ev->ev_pri      = 0;
-  ev->ev_callback = cb;
-  ev->ev_arg      = arg;
-  ev->ev_res      = 0;
-  ev->ev_flags    = EVLIST_INIT;
-}
-
-int event_once (int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv)
-{
-  return event_base_once (ev_x_cur, fd, events, cb, arg, tv);
-}
-
-int event_add (struct event *ev, struct timeval *tv)
-{
-  dLOOPev;
-
-  if (ev->ev_events & EV_SIGNAL)
-    {
-      if (!ev_is_active (&ev->iosig.sig))
-        {
-          ev_signal_set (&ev->iosig.sig, ev->ev_fd);
-          ev_signal_start (EV_A_ &ev->iosig.sig);
-
-          ev->ev_flags |= EVLIST_SIGNAL;
-        }
-    }
-  else if (ev->ev_events & (EV_READ | EV_WRITE))
-    {
-      if (!ev_is_active (&ev->iosig.io))
-        {
-          ev_io_set (&ev->iosig.io, ev->ev_fd, ev->ev_events & (EV_READ | EV_WRITE));
-          ev_io_start (EV_A_ &ev->iosig.io);
-
-          ev->ev_flags |= EVLIST_INSERTED;
-        }
-    }
-
-  if (tv)
-    {
-      ev->to.repeat = ev_tv_get (tv);
-      ev_timer_again (EV_A_ &ev->to);
-      ev->ev_flags |= EVLIST_TIMEOUT;
-    }
-  else
-    {
-      ev_timer_stop (EV_A_ &ev->to);
-      ev->ev_flags &= ~EVLIST_TIMEOUT;
-    }
-
-  ev->ev_flags |= EVLIST_ACTIVE;
-
-  return 0;
-}
-
-int event_del (struct event *ev)
-{
-  dLOOPev;
-
-  if (ev->ev_events & EV_SIGNAL)
-    ev_signal_stop (EV_A_ &ev->iosig.sig);
-  else if (ev->ev_events & (EV_READ | EV_WRITE))
-    ev_io_stop (EV_A_ &ev->iosig.io);
-
-  if (ev_is_active (&ev->to))
-    ev_timer_stop (EV_A_ &ev->to);
-
-  ev->ev_flags = EVLIST_INIT;
-
-  return 0;
-}
-
-void event_active (struct event *ev, int res, short ncalls)
-{
-  dLOOPev;
-
-  if (res & EV_TIMEOUT)
-    ev_feed_event (EV_A_ &ev->to, res & EV_TIMEOUT);
-
-  if (res & EV_SIGNAL)
-    ev_feed_event (EV_A_ &ev->iosig.sig, res & EV_SIGNAL);
-
-  if (res & (EV_READ | EV_WRITE))
-    ev_feed_event (EV_A_ &ev->iosig.io, res & (EV_READ | EV_WRITE));
-}
-
-int event_pending (struct event *ev, short events, struct timeval *tv)
-{
-  short revents = 0;
-  dLOOPev;
-
-  if (ev->ev_events & EV_SIGNAL)
-    {
-      /* sig */
-      if (ev_is_active (&ev->iosig.sig) || ev_is_pending (&ev->iosig.sig))
-        revents |= EV_SIGNAL;
-    }
-  else if (ev->ev_events & (EV_READ | EV_WRITE))
-    {
-      /* io */
-      if (ev_is_active (&ev->iosig.io) || ev_is_pending (&ev->iosig.io))
-        revents |= ev->ev_events & (EV_READ | EV_WRITE);
-    }
-
-  if (ev->ev_events & EV_TIMEOUT || ev_is_active (&ev->to) || ev_is_pending (&ev->to))
-    {
-      revents |= EV_TIMEOUT;
-
-      if (tv)
-        {
-          ev_tstamp at = ev_now (EV_A);
-
-          tv->tv_sec  = (long)at;
-          tv->tv_usec = (long)((at - (ev_tstamp)tv->tv_sec) * 1e6);
-        }
-    }
-
-  return events & revents;
-}
-
-int event_priority_init (int npri)
-{
-  return event_base_priority_init (ev_x_cur, npri);
-}
-
-int event_priority_set (struct event *ev, int pri)
-{
-  ev->ev_pri = pri;
-
-  return 0;
-}
-
-int event_base_set (struct event_base *base, struct event *ev)
-{
-  ev->ev_base = base;
-
-  return 0;
-}
-
-int event_base_loop (struct event_base *base, int flags)
-{
-  dLOOPbase;
-
-  ev_run (EV_A_ flags);
-
-  return 0;
-}
-
-int event_base_dispatch (struct event_base *base)
-{
-  return event_base_loop (base, 0);
-}
-
-static void
-ev_x_loopexit_cb (int revents, void *base)
-{
-  dLOOPbase;
-
-  ev_break (EV_A_ EVBREAK_ONE);
-}
-
-int event_base_loopexit (struct event_base *base, struct timeval *tv)
-{
-  ev_tstamp after = ev_tv_get (tv);
-  dLOOPbase;
-
-  ev_once (EV_A_ -1, 0, after >= 0. ? after : 0., ev_x_loopexit_cb, (void *)base);
-
-  return 0;
-}
-
-struct ev_x_once
-{
-  int fd;
-  void (*cb)(int, short, void *);
-  void *arg;
-};
-
-static void
-ev_x_once_cb (int revents, void *arg)
-{
-  struct ev_x_once *once = (struct ev_x_once *)arg;
-
-  once->cb (once->fd, (short)revents, once->arg);
-  free (once);
-}
-
-int event_base_once (struct event_base *base, int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv)
-{
-  struct ev_x_once *once = (struct ev_x_once *)malloc (sizeof (struct ev_x_once));
-  dLOOPbase;
-
-  if (!once)
-    return -1;
-
-  once->fd  = fd;
-  once->cb  = cb;
-  once->arg = arg;
-
-  ev_once (EV_A_ fd, events & (EV_READ | EV_WRITE), ev_tv_get (tv), ev_x_once_cb, (void *)once);
-
-  return 0;
-}
-
-int event_base_priority_init (struct event_base *base, int npri)
-{
-  /*dLOOPbase;*/
-
-  return 0;
-}
-
diff --git a/deps/uv/src/unix/ev/event.h b/deps/uv/src/unix/ev/event.h
deleted file mode 100644
index 10ff05a3cb..0000000000
--- a/deps/uv/src/unix/ev/event.h
+++ /dev/null
@@ -1,170 +0,0 @@
-/*
- * libevent compatibility header, only core events supported
- *
- * Copyright (c) 2007,2008,2010 Marc Alexander Lehmann <libev@schmorp.de>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modifica-
- * tion, are permitted provided that the following conditions are met:
- *
- *   1.  Redistributions of source code must retain the above copyright notice,
- *       this list of conditions and the following disclaimer.
- *
- *   2.  Redistributions in binary form must reproduce the above copyright
- *       notice, this list of conditions and the following disclaimer in the
- *       documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
- * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
- * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
- * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Alternatively, the contents of this file may be used under the terms of
- * the GNU General Public License ("GPL") version 2 or any later version,
- * in which case the provisions of the GPL are applicable instead of
- * the above. If you wish to allow the use of your version of this file
- * only under the terms of the GPL and not to allow others to use your
- * version of this file under the BSD license, indicate your decision
- * by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL. If you do not delete the
- * provisions above, a recipient may use your version of this file under
- * either the BSD or the GPL.
- */
-
-#ifndef EVENT_H_
-#define EVENT_H_
-
-#ifdef EV_H
-# include EV_H
-#else
-# include "ev.h"
-#endif
-
-#ifndef EVLOOP_NONBLOCK
-# define EVLOOP_NONBLOCK EVRUN_NOWAIT
-#endif
-#ifndef EVLOOP_ONESHOT
-# define EVLOOP_ONESHOT EVRUN_ONCE
-#endif
-#ifndef EV_TIMEOUT
-# define EV_TIMEOUT EV_TIMER
-#endif
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* we need sys/time.h for struct timeval only */
-#if !defined (WIN32) || defined (__MINGW32__)
-# include <time.h> /* mingw seems to need this, for whatever reason */
-# include <sys/time.h>
-#endif
-
-struct event_base;
-
-#define EVLIST_TIMEOUT  0x01
-#define EVLIST_INSERTED 0x02
-#define EVLIST_SIGNAL   0x04
-#define EVLIST_ACTIVE   0x08
-#define EVLIST_INTERNAL 0x10
-#define EVLIST_INIT     0x80
-
-struct event
-{
-  /* libev watchers we map onto */
-  union {
-    struct ev_io io;
-    struct ev_signal sig;
-  } iosig;
-  struct ev_timer to;
-
-  /* compatibility slots */
-  struct event_base *ev_base;
-  void (*ev_callback)(int, short, void *arg);
-  void *ev_arg;
-  int ev_fd;
-  int ev_pri;
-  int ev_res;
-  int ev_flags;
-  short ev_events;
-};
-
-#define EV_READ                    EV_READ
-#define EV_WRITE                   EV_WRITE
-#define EV_PERSIST                 0x10
-
-#define EVENT_SIGNAL(ev)           ((int) (ev)->ev_fd)
-#define EVENT_FD(ev)               ((int) (ev)->ev_fd)
-
-#define event_initialized(ev)      ((ev)->ev_flags & EVLIST_INIT)
-
-#define evtimer_add(ev,tv)         event_add (ev, tv)
-#define evtimer_set(ev,cb,data)    event_set (ev, -1, 0, cb, data)
-#define evtimer_del(ev)            event_del (ev)
-#define evtimer_pending(ev,tv)     event_pending (ev, EV_TIMEOUT, tv)
-#define evtimer_initialized(ev)    event_initialized (ev)
-
-#define timeout_add(ev,tv)         evtimer_add (ev, tv)
-#define timeout_set(ev,cb,data)    evtimer_set (ev, cb, data)
-#define timeout_del(ev)            evtimer_del (ev)
-#define timeout_pending(ev,tv)     evtimer_pending (ev, tv)
-#define timeout_initialized(ev)    evtimer_initialized (ev)
-
-#define signal_add(ev,tv)          event_add (ev, tv)
-#define signal_set(ev,sig,cb,data) event_set (ev, sig, EV_SIGNAL | EV_PERSIST, cb, data)
-#define signal_del(ev)             event_del (ev)
-#define signal_pending(ev,tv)      event_pending (ev, EV_SIGNAL, tv)
-#define signal_initialized(ev)     event_initialized (ev)
-
-const char *event_get_version (void);
-const char *event_get_method (void);
-
-void *event_init (void);
-void event_base_free (struct event_base *base);
-
-#define EVLOOP_ONCE      EVLOOP_ONESHOT
-int event_loop (int);
-int event_loopexit (struct timeval *tv);
-int event_dispatch (void);
-
-#define _EVENT_LOG_DEBUG 0
-#define _EVENT_LOG_MSG   1
-#define _EVENT_LOG_WARN  2
-#define _EVENT_LOG_ERR   3
-typedef void (*event_log_cb)(int severity, const char *msg);
-void event_set_log_callback(event_log_cb cb);
-
-void event_set (struct event *ev, int fd, short events, void (*cb)(int, short, void *), void *arg);
-int event_once (int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv);
-
-int event_add (struct event *ev, struct timeval *tv);
-int event_del (struct event *ev);
-void event_active (struct event *ev, int res, short ncalls); /* ncalls is being ignored */
-
-int event_pending (struct event *ev, short, struct timeval *tv);
-
-int event_priority_init (int npri);
-int event_priority_set (struct event *ev, int pri);
-
-int event_base_set (struct event_base *base, struct event *ev);
-int event_base_loop (struct event_base *base, int);
-int event_base_loopexit (struct event_base *base, struct timeval *tv);
-int event_base_dispatch (struct event_base *base);
-int event_base_once (struct event_base *base, int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv);
-int event_base_priority_init (struct event_base *base, int fd);
-
-/* next line is different in the libevent+libev version */
-/*libevent-include*/
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
-
diff --git a/deps/uv/src/unix/ev/install-sh b/deps/uv/src/unix/ev/install-sh
deleted file mode 100755
index 6ce63b9f76..0000000000
--- a/deps/uv/src/unix/ev/install-sh
+++ /dev/null
@@ -1,294 +0,0 @@
-#!/bin/sh
-#
-# install - install a program, script, or datafile
-#
-# This originates from X11R5 (mit/util/scripts/install.sh), which was
-# later released in X11R6 (xc/config/util/install.sh) with the
-# following copyright and license.
-#
-# Copyright (C) 1994 X Consortium
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to
-# deal in the Software without restriction, including without limitation the
-# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-# sell copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
-# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
-# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
-# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-#
-# Except as contained in this notice, the name of the X Consortium shall not
-# be used in advertising or otherwise to promote the sale, use or other deal-
-# ings in this Software without prior written authorization from the X Consor-
-# tium.
-#
-#
-# FSF changes to this file are in the public domain.
-#
-# Calling this script install-sh is preferred over install.sh, to prevent
-# `make' implicit rules from creating a file called install from it
-# when there is no Makefile.
-#
-# This script is compatible with the BSD install script, but was written
-# from scratch.  It can only install one file at a time, a restriction
-# shared with many OS's install programs.
-
-
-# set DOITPROG to echo to test this script
-
-# Don't use :- since 4.3BSD and earlier shells don't like it.
-doit="${DOITPROG-}"
-
-
-# put in absolute paths if you don't have them in your path; or use env. vars.
-
-mvprog="${MVPROG-mv}"
-cpprog="${CPPROG-cp}"
-chmodprog="${CHMODPROG-chmod}"
-chownprog="${CHOWNPROG-chown}"
-chgrpprog="${CHGRPPROG-chgrp}"
-stripprog="${STRIPPROG-strip}"
-rmprog="${RMPROG-rm}"
-mkdirprog="${MKDIRPROG-mkdir}"
-
-transformbasename=""
-transform_arg=""
-instcmd="$mvprog"
-chmodcmd="$chmodprog 0755"
-chowncmd=""
-chgrpcmd=""
-stripcmd=""
-rmcmd="$rmprog -f"
-mvcmd="$mvprog"
-src=""
-dst=""
-dir_arg=""
-
-while [ x"$1" != x ]; do
-    case $1 in
-	-c) instcmd=$cpprog
-	    shift
-	    continue;;
-
-	-d) dir_arg=true
-	    shift
-	    continue;;
-
-	-m) chmodcmd="$chmodprog $2"
-	    shift
-	    shift
-	    continue;;
-
-	-o) chowncmd="$chownprog $2"
-	    shift
-	    shift
-	    continue;;
-
-	-g) chgrpcmd="$chgrpprog $2"
-	    shift
-	    shift
-	    continue;;
-
-	-s) stripcmd=$stripprog
-	    shift
-	    continue;;
-
-	-t=*) transformarg=`echo $1 | sed 's/-t=//'`
-	    shift
-	    continue;;
-
-	-b=*) transformbasename=`echo $1 | sed 's/-b=//'`
-	    shift
-	    continue;;
-
-	*)  if [ x"$src" = x ]
-	    then
-		src=$1
-	    else
-		# this colon is to work around a 386BSD /bin/sh bug
-		:
-		dst=$1
-	    fi
-	    shift
-	    continue;;
-    esac
-done
-
-if [ x"$src" = x ]
-then
-	echo "$0: no input file specified" >&2
-	exit 1
-else
-	:
-fi
-
-if [ x"$dir_arg" != x ]; then
-	dst=$src
-	src=""
-
-	if [ -d "$dst" ]; then
-		instcmd=:
-		chmodcmd=""
-	else
-		instcmd=$mkdirprog
-	fi
-else
-
-# Waiting for this to be detected by the "$instcmd $src $dsttmp" command
-# might cause directories to be created, which would be especially bad
-# if $src (and thus $dsttmp) contains '*'.
-
-	if [ -f "$src" ] || [ -d "$src" ]
-	then
-		:
-	else
-		echo "$0: $src does not exist" >&2
-		exit 1
-	fi
-
-	if [ x"$dst" = x ]
-	then
-		echo "$0: no destination specified" >&2
-		exit 1
-	else
-		:
-	fi
-
-# If destination is a directory, append the input filename; if your system
-# does not like double slashes in filenames, you may need to add some logic
-
-	if [ -d "$dst" ]
-	then
-		dst=$dst/`basename "$src"`
-	else
-		:
-	fi
-fi
-
-## this sed command emulates the dirname command
-dstdir=`echo "$dst" | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`
-
-# Make sure that the destination directory exists.
-#  this part is taken from Noah Friedman's mkinstalldirs script
-
-# Skip lots of stat calls in the usual case.
-if [ ! -d "$dstdir" ]; then
-defaultIFS='
-	'
-IFS="${IFS-$defaultIFS}"
-
-oIFS=$IFS
-# Some sh's can't handle IFS=/ for some reason.
-IFS='%'
-set - `echo "$dstdir" | sed -e 's@/@%@g' -e 's@^%@/@'`
-IFS=$oIFS
-
-pathcomp=''
-
-while [ $# -ne 0 ] ; do
-	pathcomp=$pathcomp$1
-	shift
-
-	if [ ! -d "$pathcomp" ] ;
-        then
-		$mkdirprog "$pathcomp"
-	else
-		:
-	fi
-
-	pathcomp=$pathcomp/
-done
-fi
-
-if [ x"$dir_arg" != x ]
-then
-	$doit $instcmd "$dst" &&
-
-	if [ x"$chowncmd" != x ]; then $doit $chowncmd "$dst"; else : ; fi &&
-	if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd "$dst"; else : ; fi &&
-	if [ x"$stripcmd" != x ]; then $doit $stripcmd "$dst"; else : ; fi &&
-	if [ x"$chmodcmd" != x ]; then $doit $chmodcmd "$dst"; else : ; fi
-else
-
-# If we're going to rename the final executable, determine the name now.
-
-	if [ x"$transformarg" = x ]
-	then
-		dstfile=`basename "$dst"`
-	else
-		dstfile=`basename "$dst" $transformbasename |
-			sed $transformarg`$transformbasename
-	fi
-
-# don't allow the sed command to completely eliminate the filename
-
-	if [ x"$dstfile" = x ]
-	then
-		dstfile=`basename "$dst"`
-	else
-		:
-	fi
-
-# Make a couple of temp file names in the proper directory.
-
-	dsttmp=$dstdir/_inst.$$_
-	rmtmp=$dstdir/_rm.$$_
-
-# Trap to clean up temp files at exit.
-
-	trap 'status=$?; rm -f "$dsttmp" "$rmtmp" && exit $status' 0
-	trap '(exit $?); exit' 1 2 13 15
-
-# Move or copy the file name to the temp name
-
-	$doit $instcmd "$src" "$dsttmp" &&
-
-# and set any options; do chmod last to preserve setuid bits
-
-# If any of these fail, we abort the whole thing.  If we want to
-# ignore errors from any of these, just make sure not to ignore
-# errors from the above "$doit $instcmd $src $dsttmp" command.
-
-	if [ x"$chowncmd" != x ]; then $doit $chowncmd "$dsttmp"; else :;fi &&
-	if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd "$dsttmp"; else :;fi &&
-	if [ x"$stripcmd" != x ]; then $doit $stripcmd "$dsttmp"; else :;fi &&
-	if [ x"$chmodcmd" != x ]; then $doit $chmodcmd "$dsttmp"; else :;fi &&
-
-# Now remove or move aside any old file at destination location.  We try this
-# two ways since rm can't unlink itself on some systems and the destination
-# file might be busy for other reasons.  In this case, the final cleanup
-# might fail but the new file should still install successfully.
-
-{
-	if [ -f "$dstdir/$dstfile" ]
-	then
-		$doit $rmcmd -f "$dstdir/$dstfile" 2>/dev/null ||
-		$doit $mvcmd -f "$dstdir/$dstfile" "$rmtmp" 2>/dev/null ||
-		{
-		  echo "$0: cannot unlink or rename $dstdir/$dstfile" >&2
-		  (exit 1); exit
-		}
-	else
-		:
-	fi
-} &&
-
-# Now rename the file to the real destination.
-
-	$doit $mvcmd "$dsttmp" "$dstdir/$dstfile"
-
-fi &&
-
-# The final little trick to "correctly" pass the exit status to the exit trap.
-
-{
-	(exit 0); exit
-}
diff --git a/deps/uv/src/unix/ev/libev.m4 b/deps/uv/src/unix/ev/libev.m4
deleted file mode 100644
index e3f4c81b23..0000000000
--- a/deps/uv/src/unix/ev/libev.m4
+++ /dev/null
@@ -1,39 +0,0 @@
-dnl this file is part of libev, do not make local modifications
-dnl http://software.schmorp.de/pkg/libev
-
-dnl libev support 
-AC_CHECK_HEADERS(sys/inotify.h sys/epoll.h sys/event.h port.h poll.h sys/select.h sys/eventfd.h sys/signalfd.h) 
- 
-AC_CHECK_FUNCS(inotify_init epoll_ctl kqueue port_create poll select eventfd signalfd)
- 
-AC_CHECK_FUNCS(clock_gettime, [], [ 
-   dnl on linux, try syscall wrapper first
-   if test $(uname) = Linux; then
-      AC_MSG_CHECKING(for clock_gettime syscall)
-      AC_LINK_IFELSE([AC_LANG_PROGRAM(
-                      [#include <unistd.h>
-                       #include <sys/syscall.h>
-                       #include <time.h>],
-                      [struct timespec ts; int status = syscall (SYS_clock_gettime, CLOCK_REALTIME, &ts)])],
-                     [ac_have_clock_syscall=1
-                      AC_DEFINE(HAVE_CLOCK_SYSCALL, 1, "use syscall interface for clock_gettime")
-                      AC_MSG_RESULT(yes)],
-                     [AC_MSG_RESULT(no)])
-   fi
-   if test -z "$LIBEV_M4_AVOID_LIBRT" && test -z "$ac_have_clock_syscall"; then
-      AC_CHECK_LIB(rt, clock_gettime) 
-      unset ac_cv_func_clock_gettime
-      AC_CHECK_FUNCS(clock_gettime)
-   fi
-])
-
-AC_CHECK_FUNCS(nanosleep, [], [ 
-   if test -z "$LIBEV_M4_AVOID_LIBRT"; then
-      AC_CHECK_LIB(rt, nanosleep) 
-      unset ac_cv_func_nanosleep
-      AC_CHECK_FUNCS(nanosleep)
-   fi
-])
-
-AC_CHECK_LIB(m, ceil)
-
diff --git a/deps/uv/src/unix/ev/ltmain.sh b/deps/uv/src/unix/ev/ltmain.sh
deleted file mode 100755
index d88da2c264..0000000000
--- a/deps/uv/src/unix/ev/ltmain.sh
+++ /dev/null
@@ -1,8413 +0,0 @@
-# Generated from ltmain.m4sh.
-
-# ltmain.sh (GNU libtool) 2.2.6b
-# Written by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
-
-# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006, 2007 2008 Free Software Foundation, Inc.
-# This is free software; see the source for copying conditions.  There is NO
-# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-
-# GNU Libtool is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# As a special exception to the GNU General Public License,
-# if you distribute this file as part of a program or library that
-# is built using GNU Libtool, you may include this file under the
-# same distribution terms that you use for the rest of that program.
-#
-# GNU Libtool is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GNU Libtool; see the file COPYING.  If not, a copy
-# can be downloaded from http://www.gnu.org/licenses/gpl.html,
-# or obtained by writing to the Free Software Foundation, Inc.,
-# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
-
-# Usage: $progname [OPTION]... [MODE-ARG]...
-#
-# Provide generalized library-building support services.
-#
-#     --config             show all configuration variables
-#     --debug              enable verbose shell tracing
-# -n, --dry-run            display commands without modifying any files
-#     --features           display basic configuration information and exit
-#     --mode=MODE          use operation mode MODE
-#     --preserve-dup-deps  don't remove duplicate dependency libraries
-#     --quiet, --silent    don't print informational messages
-#     --tag=TAG            use configuration variables from tag TAG
-# -v, --verbose            print informational messages (default)
-#     --version            print version information
-# -h, --help               print short or long help message
-#
-# MODE must be one of the following:
-#
-#       clean              remove files from the build directory
-#       compile            compile a source file into a libtool object
-#       execute            automatically set library path, then run a program
-#       finish             complete the installation of libtool libraries
-#       install            install libraries or executables
-#       link               create a library or an executable
-#       uninstall          remove libraries from an installed directory
-#
-# MODE-ARGS vary depending on the MODE.
-# Try `$progname --help --mode=MODE' for a more detailed description of MODE.
-#
-# When reporting a bug, please describe a test case to reproduce it and
-# include the following information:
-#
-#       host-triplet:	$host
-#       shell:		$SHELL
-#       compiler:		$LTCC
-#       compiler flags:		$LTCFLAGS
-#       linker:		$LD (gnu? $with_gnu_ld)
-#       $progname:		(GNU libtool) 2.2.6b Debian-2.2.6b-2
-#       automake:		$automake_version
-#       autoconf:		$autoconf_version
-#
-# Report bugs to <bug-libtool@gnu.org>.
-
-PROGRAM=ltmain.sh
-PACKAGE=libtool
-VERSION="2.2.6b Debian-2.2.6b-2"
-TIMESTAMP=""
-package_revision=1.3017
-
-# Be Bourne compatible
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
-  emulate sh
-  NULLCMD=:
-  # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
-  # is contrary to our usage.  Disable this feature.
-  alias -g '${1+"$@"}'='"$@"'
-  setopt NO_GLOB_SUBST
-else
-  case `(set -o) 2>/dev/null` in *posix*) set -o posix;; esac
-fi
-BIN_SH=xpg4; export BIN_SH # for Tru64
-DUALCASE=1; export DUALCASE # for MKS sh
-
-# NLS nuisances: We save the old values to restore during execute mode.
-# Only set LANG and LC_ALL to C if already set.
-# These must not be set unconditionally because not all systems understand
-# e.g. LANG=C (notably SCO).
-lt_user_locale=
-lt_safe_locale=
-for lt_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES
-do
-  eval "if test \"\${$lt_var+set}\" = set; then
-          save_$lt_var=\$$lt_var
-          $lt_var=C
-	  export $lt_var
-	  lt_user_locale=\"$lt_var=\\\$save_\$lt_var; \$lt_user_locale\"
-	  lt_safe_locale=\"$lt_var=C; \$lt_safe_locale\"
-	fi"
-done
-
-$lt_unset CDPATH
-
-
-
-
-
-: ${CP="cp -f"}
-: ${ECHO="echo"}
-: ${EGREP="/bin/grep -E"}
-: ${FGREP="/bin/grep -F"}
-: ${GREP="/bin/grep"}
-: ${LN_S="ln -s"}
-: ${MAKE="make"}
-: ${MKDIR="mkdir"}
-: ${MV="mv -f"}
-: ${RM="rm -f"}
-: ${SED="/bin/sed"}
-: ${SHELL="${CONFIG_SHELL-/bin/sh}"}
-: ${Xsed="$SED -e 1s/^X//"}
-
-# Global variables:
-EXIT_SUCCESS=0
-EXIT_FAILURE=1
-EXIT_MISMATCH=63  # $? = 63 is used to indicate version mismatch to missing.
-EXIT_SKIP=77	  # $? = 77 is used to indicate a skipped test to automake.
-
-exit_status=$EXIT_SUCCESS
-
-# Make sure IFS has a sensible default
-lt_nl='
-'
-IFS=" 	$lt_nl"
-
-dirname="s,/[^/]*$,,"
-basename="s,^.*/,,"
-
-# func_dirname_and_basename file append nondir_replacement
-# perform func_basename and func_dirname in a single function
-# call:
-#   dirname:  Compute the dirname of FILE.  If nonempty,
-#             add APPEND to the result, otherwise set result
-#             to NONDIR_REPLACEMENT.
-#             value returned in "$func_dirname_result"
-#   basename: Compute filename of FILE.
-#             value retuned in "$func_basename_result"
-# Implementation must be kept synchronized with func_dirname
-# and func_basename. For efficiency, we do not delegate to
-# those functions but instead duplicate the functionality here.
-func_dirname_and_basename ()
-{
-  # Extract subdirectory from the argument.
-  func_dirname_result=`$ECHO "X${1}" | $Xsed -e "$dirname"`
-  if test "X$func_dirname_result" = "X${1}"; then
-    func_dirname_result="${3}"
-  else
-    func_dirname_result="$func_dirname_result${2}"
-  fi
-  func_basename_result=`$ECHO "X${1}" | $Xsed -e "$basename"`
-}
-
-# Generated shell functions inserted here.
-
-# Work around backward compatibility issue on IRIX 6.5. On IRIX 6.4+, sh
-# is ksh but when the shell is invoked as "sh" and the current value of
-# the _XPG environment variable is not equal to 1 (one), the special
-# positional parameter $0, within a function call, is the name of the
-# function.
-progpath="$0"
-
-# The name of this program:
-# In the unlikely event $progname began with a '-', it would play havoc with
-# func_echo (imagine progname=-n), so we prepend ./ in that case:
-func_dirname_and_basename "$progpath"
-progname=$func_basename_result
-case $progname in
-  -*) progname=./$progname ;;
-esac
-
-# Make sure we have an absolute path for reexecution:
-case $progpath in
-  [\\/]*|[A-Za-z]:\\*) ;;
-  *[\\/]*)
-     progdir=$func_dirname_result
-     progdir=`cd "$progdir" && pwd`
-     progpath="$progdir/$progname"
-     ;;
-  *)
-     save_IFS="$IFS"
-     IFS=:
-     for progdir in $PATH; do
-       IFS="$save_IFS"
-       test -x "$progdir/$progname" && break
-     done
-     IFS="$save_IFS"
-     test -n "$progdir" || progdir=`pwd`
-     progpath="$progdir/$progname"
-     ;;
-esac
-
-# Sed substitution that helps us do robust quoting.  It backslashifies
-# metacharacters that are still active within double-quoted strings.
-Xsed="${SED}"' -e 1s/^X//'
-sed_quote_subst='s/\([`"$\\]\)/\\\1/g'
-
-# Same as above, but do not quote variable references.
-double_quote_subst='s/\(["`\\]\)/\\\1/g'
-
-# Re-`\' parameter expansions in output of double_quote_subst that were
-# `\'-ed in input to the same.  If an odd number of `\' preceded a '$'
-# in input to double_quote_subst, that '$' was protected from expansion.
-# Since each input `\' is now two `\'s, look for any number of runs of
-# four `\'s followed by two `\'s and then a '$'.  `\' that '$'.
-bs='\\'
-bs2='\\\\'
-bs4='\\\\\\\\'
-dollar='\$'
-sed_double_backslash="\
-  s/$bs4/&\\
-/g
-  s/^$bs2$dollar/$bs&/
-  s/\\([^$bs]\\)$bs2$dollar/\\1$bs2$bs$dollar/g
-  s/\n//g"
-
-# Standard options:
-opt_dry_run=false
-opt_help=false
-opt_quiet=false
-opt_verbose=false
-opt_warning=:
-
-# func_echo arg...
-# Echo program name prefixed message, along with the current mode
-# name if it has been set yet.
-func_echo ()
-{
-    $ECHO "$progname${mode+: }$mode: $*"
-}
-
-# func_verbose arg...
-# Echo program name prefixed message in verbose mode only.
-func_verbose ()
-{
-    $opt_verbose && func_echo ${1+"$@"}
-
-    # A bug in bash halts the script if the last line of a function
-    # fails when set -e is in force, so we need another command to
-    # work around that:
-    :
-}
-
-# func_error arg...
-# Echo program name prefixed message to standard error.
-func_error ()
-{
-    $ECHO "$progname${mode+: }$mode: "${1+"$@"} 1>&2
-}
-
-# func_warning arg...
-# Echo program name prefixed warning message to standard error.
-func_warning ()
-{
-    $opt_warning && $ECHO "$progname${mode+: }$mode: warning: "${1+"$@"} 1>&2
-
-    # bash bug again:
-    :
-}
-
-# func_fatal_error arg...
-# Echo program name prefixed message to standard error, and exit.
-func_fatal_error ()
-{
-    func_error ${1+"$@"}
-    exit $EXIT_FAILURE
-}
-
-# func_fatal_help arg...
-# Echo program name prefixed message to standard error, followed by
-# a help hint, and exit.
-func_fatal_help ()
-{
-    func_error ${1+"$@"}
-    func_fatal_error "$help"
-}
-help="Try \`$progname --help' for more information."  ## default
-
-
-# func_grep expression filename
-# Check whether EXPRESSION matches any line of FILENAME, without output.
-func_grep ()
-{
-    $GREP "$1" "$2" >/dev/null 2>&1
-}
-
-
-# func_mkdir_p directory-path
-# Make sure the entire path to DIRECTORY-PATH is available.
-func_mkdir_p ()
-{
-    my_directory_path="$1"
-    my_dir_list=
-
-    if test -n "$my_directory_path" && test "$opt_dry_run" != ":"; then
-
-      # Protect directory names starting with `-'
-      case $my_directory_path in
-        -*) my_directory_path="./$my_directory_path" ;;
-      esac
-
-      # While some portion of DIR does not yet exist...
-      while test ! -d "$my_directory_path"; do
-        # ...make a list in topmost first order.  Use a colon delimited
-	# list incase some portion of path contains whitespace.
-        my_dir_list="$my_directory_path:$my_dir_list"
-
-        # If the last portion added has no slash in it, the list is done
-        case $my_directory_path in */*) ;; *) break ;; esac
-
-        # ...otherwise throw away the child directory and loop
-        my_directory_path=`$ECHO "X$my_directory_path" | $Xsed -e "$dirname"`
-      done
-      my_dir_list=`$ECHO "X$my_dir_list" | $Xsed -e 's,:*$,,'`
-
-      save_mkdir_p_IFS="$IFS"; IFS=':'
-      for my_dir in $my_dir_list; do
-	IFS="$save_mkdir_p_IFS"
-        # mkdir can fail with a `File exist' error if two processes
-        # try to create one of the directories concurrently.  Don't
-        # stop in that case!
-        $MKDIR "$my_dir" 2>/dev/null || :
-      done
-      IFS="$save_mkdir_p_IFS"
-
-      # Bail out if we (or some other process) failed to create a directory.
-      test -d "$my_directory_path" || \
-        func_fatal_error "Failed to create \`$1'"
-    fi
-}
-
-
-# func_mktempdir [string]
-# Make a temporary directory that won't clash with other running
-# libtool processes, and avoids race conditions if possible.  If
-# given, STRING is the basename for that directory.
-func_mktempdir ()
-{
-    my_template="${TMPDIR-/tmp}/${1-$progname}"
-
-    if test "$opt_dry_run" = ":"; then
-      # Return a directory name, but don't create it in dry-run mode
-      my_tmpdir="${my_template}-$$"
-    else
-
-      # If mktemp works, use that first and foremost
-      my_tmpdir=`mktemp -d "${my_template}-XXXXXXXX" 2>/dev/null`
-
-      if test ! -d "$my_tmpdir"; then
-        # Failing that, at least try and use $RANDOM to avoid a race
-        my_tmpdir="${my_template}-${RANDOM-0}$$"
-
-        save_mktempdir_umask=`umask`
-        umask 0077
-        $MKDIR "$my_tmpdir"
-        umask $save_mktempdir_umask
-      fi
-
-      # If we're not in dry-run mode, bomb out on failure
-      test -d "$my_tmpdir" || \
-        func_fatal_error "cannot create temporary directory \`$my_tmpdir'"
-    fi
-
-    $ECHO "X$my_tmpdir" | $Xsed
-}
-
-
-# func_quote_for_eval arg
-# Aesthetically quote ARG to be evaled later.
-# This function returns two values: FUNC_QUOTE_FOR_EVAL_RESULT
-# is double-quoted, suitable for a subsequent eval, whereas
-# FUNC_QUOTE_FOR_EVAL_UNQUOTED_RESULT has merely all characters
-# which are still active within double quotes backslashified.
-func_quote_for_eval ()
-{
-    case $1 in
-      *[\\\`\"\$]*)
-	func_quote_for_eval_unquoted_result=`$ECHO "X$1" | $Xsed -e "$sed_quote_subst"` ;;
-      *)
-        func_quote_for_eval_unquoted_result="$1" ;;
-    esac
-
-    case $func_quote_for_eval_unquoted_result in
-      # Double-quote args containing shell metacharacters to delay
-      # word splitting, command substitution and and variable
-      # expansion for a subsequent eval.
-      # Many Bourne shells cannot handle close brackets correctly
-      # in scan sets, so we specify it separately.
-      *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \	]*|*]*|"")
-        func_quote_for_eval_result="\"$func_quote_for_eval_unquoted_result\""
-        ;;
-      *)
-        func_quote_for_eval_result="$func_quote_for_eval_unquoted_result"
-    esac
-}
-
-
-# func_quote_for_expand arg
-# Aesthetically quote ARG to be evaled later; same as above,
-# but do not quote variable references.
-func_quote_for_expand ()
-{
-    case $1 in
-      *[\\\`\"]*)
-	my_arg=`$ECHO "X$1" | $Xsed \
-	    -e "$double_quote_subst" -e "$sed_double_backslash"` ;;
-      *)
-        my_arg="$1" ;;
-    esac
-
-    case $my_arg in
-      # Double-quote args containing shell metacharacters to delay
-      # word splitting and command substitution for a subsequent eval.
-      # Many Bourne shells cannot handle close brackets correctly
-      # in scan sets, so we specify it separately.
-      *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \	]*|*]*|"")
-        my_arg="\"$my_arg\""
-        ;;
-    esac
-
-    func_quote_for_expand_result="$my_arg"
-}
-
-
-# func_show_eval cmd [fail_exp]
-# Unless opt_silent is true, then output CMD.  Then, if opt_dryrun is
-# not true, evaluate CMD.  If the evaluation of CMD fails, and FAIL_EXP
-# is given, then evaluate it.
-func_show_eval ()
-{
-    my_cmd="$1"
-    my_fail_exp="${2-:}"
-
-    ${opt_silent-false} || {
-      func_quote_for_expand "$my_cmd"
-      eval "func_echo $func_quote_for_expand_result"
-    }
-
-    if ${opt_dry_run-false}; then :; else
-      eval "$my_cmd"
-      my_status=$?
-      if test "$my_status" -eq 0; then :; else
-	eval "(exit $my_status); $my_fail_exp"
-      fi
-    fi
-}
-
-
-# func_show_eval_locale cmd [fail_exp]
-# Unless opt_silent is true, then output CMD.  Then, if opt_dryrun is
-# not true, evaluate CMD.  If the evaluation of CMD fails, and FAIL_EXP
-# is given, then evaluate it.  Use the saved locale for evaluation.
-func_show_eval_locale ()
-{
-    my_cmd="$1"
-    my_fail_exp="${2-:}"
-
-    ${opt_silent-false} || {
-      func_quote_for_expand "$my_cmd"
-      eval "func_echo $func_quote_for_expand_result"
-    }
-
-    if ${opt_dry_run-false}; then :; else
-      eval "$lt_user_locale
-	    $my_cmd"
-      my_status=$?
-      eval "$lt_safe_locale"
-      if test "$my_status" -eq 0; then :; else
-	eval "(exit $my_status); $my_fail_exp"
-      fi
-    fi
-}
-
-
-
-
-
-# func_version
-# Echo version message to standard output and exit.
-func_version ()
-{
-    $SED -n '/^# '$PROGRAM' (GNU /,/# warranty; / {
-        s/^# //
-	s/^# *$//
-        s/\((C)\)[ 0-9,-]*\( [1-9][0-9]*\)/\1\2/
-        p
-     }' < "$progpath"
-     exit $?
-}
-
-# func_usage
-# Echo short help message to standard output and exit.
-func_usage ()
-{
-    $SED -n '/^# Usage:/,/# -h/ {
-        s/^# //
-	s/^# *$//
-	s/\$progname/'$progname'/
-	p
-    }' < "$progpath"
-    $ECHO
-    $ECHO "run \`$progname --help | more' for full usage"
-    exit $?
-}
-
-# func_help
-# Echo long help message to standard output and exit.
-func_help ()
-{
-    $SED -n '/^# Usage:/,/# Report bugs to/ {
-        s/^# //
-	s/^# *$//
-	s*\$progname*'$progname'*
-	s*\$host*'"$host"'*
-	s*\$SHELL*'"$SHELL"'*
-	s*\$LTCC*'"$LTCC"'*
-	s*\$LTCFLAGS*'"$LTCFLAGS"'*
-	s*\$LD*'"$LD"'*
-	s/\$with_gnu_ld/'"$with_gnu_ld"'/
-	s/\$automake_version/'"`(automake --version) 2>/dev/null |$SED 1q`"'/
-	s/\$autoconf_version/'"`(autoconf --version) 2>/dev/null |$SED 1q`"'/
-	p
-     }' < "$progpath"
-    exit $?
-}
-
-# func_missing_arg argname
-# Echo program name prefixed message to standard error and set global
-# exit_cmd.
-func_missing_arg ()
-{
-    func_error "missing argument for $1"
-    exit_cmd=exit
-}
-
-exit_cmd=:
-
-
-
-
-
-# Check that we have a working $ECHO.
-if test "X$1" = X--no-reexec; then
-  # Discard the --no-reexec flag, and continue.
-  shift
-elif test "X$1" = X--fallback-echo; then
-  # Avoid inline document here, it may be left over
-  :
-elif test "X`{ $ECHO '\t'; } 2>/dev/null`" = 'X\t'; then
-  # Yippee, $ECHO works!
-  :
-else
-  # Restart under the correct shell, and then maybe $ECHO will work.
-  exec $SHELL "$progpath" --no-reexec ${1+"$@"}
-fi
-
-if test "X$1" = X--fallback-echo; then
-  # used as fallback echo
-  shift
-  cat <<EOF
-$*
-EOF
-  exit $EXIT_SUCCESS
-fi
-
-magic="%%%MAGIC variable%%%"
-magic_exe="%%%MAGIC EXE variable%%%"
-
-# Global variables.
-# $mode is unset
-nonopt=
-execute_dlfiles=
-preserve_args=
-lo2o="s/\\.lo\$/.${objext}/"
-o2lo="s/\\.${objext}\$/.lo/"
-extracted_archives=
-extracted_serial=0
-
-opt_dry_run=false
-opt_duplicate_deps=false
-opt_silent=false
-opt_debug=:
-
-# If this variable is set in any of the actions, the command in it
-# will be execed at the end.  This prevents here-documents from being
-# left over by shells.
-exec_cmd=
-
-# func_fatal_configuration arg...
-# Echo program name prefixed message to standard error, followed by
-# a configuration failure hint, and exit.
-func_fatal_configuration ()
-{
-    func_error ${1+"$@"}
-    func_error "See the $PACKAGE documentation for more information."
-    func_fatal_error "Fatal configuration error."
-}
-
-
-# func_config
-# Display the configuration for all the tags in this script.
-func_config ()
-{
-    re_begincf='^# ### BEGIN LIBTOOL'
-    re_endcf='^# ### END LIBTOOL'
-
-    # Default configuration.
-    $SED "1,/$re_begincf CONFIG/d;/$re_endcf CONFIG/,\$d" < "$progpath"
-
-    # Now print the configurations for the tags.
-    for tagname in $taglist; do
-      $SED -n "/$re_begincf TAG CONFIG: $tagname\$/,/$re_endcf TAG CONFIG: $tagname\$/p" < "$progpath"
-    done
-
-    exit $?
-}
-
-# func_features
-# Display the features supported by this script.
-func_features ()
-{
-    $ECHO "host: $host"
-    if test "$build_libtool_libs" = yes; then
-      $ECHO "enable shared libraries"
-    else
-      $ECHO "disable shared libraries"
-    fi
-    if test "$build_old_libs" = yes; then
-      $ECHO "enable static libraries"
-    else
-      $ECHO "disable static libraries"
-    fi
-
-    exit $?
-}
-
-# func_enable_tag tagname
-# Verify that TAGNAME is valid, and either flag an error and exit, or
-# enable the TAGNAME tag.  We also add TAGNAME to the global $taglist
-# variable here.
-func_enable_tag ()
-{
-  # Global variable:
-  tagname="$1"
-
-  re_begincf="^# ### BEGIN LIBTOOL TAG CONFIG: $tagname\$"
-  re_endcf="^# ### END LIBTOOL TAG CONFIG: $tagname\$"
-  sed_extractcf="/$re_begincf/,/$re_endcf/p"
-
-  # Validate tagname.
-  case $tagname in
-    *[!-_A-Za-z0-9,/]*)
-      func_fatal_error "invalid tag name: $tagname"
-      ;;
-  esac
-
-  # Don't test for the "default" C tag, as we know it's
-  # there but not specially marked.
-  case $tagname in
-    CC) ;;
-    *)
-      if $GREP "$re_begincf" "$progpath" >/dev/null 2>&1; then
-	taglist="$taglist $tagname"
-
-	# Evaluate the configuration.  Be careful to quote the path
-	# and the sed script, to avoid splitting on whitespace, but
-	# also don't use non-portable quotes within backquotes within
-	# quotes we have to do it in 2 steps:
-	extractedcf=`$SED -n -e "$sed_extractcf" < "$progpath"`
-	eval "$extractedcf"
-      else
-	func_error "ignoring unknown tag $tagname"
-      fi
-      ;;
-  esac
-}
-
-# Parse options once, thoroughly.  This comes as soon as possible in
-# the script to make things like `libtool --version' happen quickly.
-{
-
-  # Shorthand for --mode=foo, only valid as the first argument
-  case $1 in
-  clean|clea|cle|cl)
-    shift; set dummy --mode clean ${1+"$@"}; shift
-    ;;
-  compile|compil|compi|comp|com|co|c)
-    shift; set dummy --mode compile ${1+"$@"}; shift
-    ;;
-  execute|execut|execu|exec|exe|ex|e)
-    shift; set dummy --mode execute ${1+"$@"}; shift
-    ;;
-  finish|finis|fini|fin|fi|f)
-    shift; set dummy --mode finish ${1+"$@"}; shift
-    ;;
-  install|instal|insta|inst|ins|in|i)
-    shift; set dummy --mode install ${1+"$@"}; shift
-    ;;
-  link|lin|li|l)
-    shift; set dummy --mode link ${1+"$@"}; shift
-    ;;
-  uninstall|uninstal|uninsta|uninst|unins|unin|uni|un|u)
-    shift; set dummy --mode uninstall ${1+"$@"}; shift
-    ;;
-  esac
-
-  # Parse non-mode specific arguments:
-  while test "$#" -gt 0; do
-    opt="$1"
-    shift
-
-    case $opt in
-      --config)		func_config					;;
-
-      --debug)		preserve_args="$preserve_args $opt"
-			func_echo "enabling shell trace mode"
-			opt_debug='set -x'
-			$opt_debug
-			;;
-
-      -dlopen)		test "$#" -eq 0 && func_missing_arg "$opt" && break
-			execute_dlfiles="$execute_dlfiles $1"
-			shift
-			;;
-
-      --dry-run | -n)	opt_dry_run=:					;;
-      --features)       func_features					;;
-      --finish)		mode="finish"					;;
-
-      --mode)		test "$#" -eq 0 && func_missing_arg "$opt" && break
-			case $1 in
-			  # Valid mode arguments:
-			  clean)	;;
-			  compile)	;;
-			  execute)	;;
-			  finish)	;;
-			  install)	;;
-			  link)		;;
-			  relink)	;;
-			  uninstall)	;;
-
-			  # Catch anything else as an error
-			  *) func_error "invalid argument for $opt"
-			     exit_cmd=exit
-			     break
-			     ;;
-		        esac
-
-			mode="$1"
-			shift
-			;;
-
-      --preserve-dup-deps)
-			opt_duplicate_deps=:				;;
-
-      --quiet|--silent)	preserve_args="$preserve_args $opt"
-			opt_silent=:
-			;;
-
-      --verbose| -v)	preserve_args="$preserve_args $opt"
-			opt_silent=false
-			;;
-
-      --tag)		test "$#" -eq 0 && func_missing_arg "$opt" && break
-			preserve_args="$preserve_args $opt $1"
-			func_enable_tag "$1"	# tagname is set here
-			shift
-			;;
-
-      # Separate optargs to long options:
-      -dlopen=*|--mode=*|--tag=*)
-			func_opt_split "$opt"
-			set dummy "$func_opt_split_opt" "$func_opt_split_arg" ${1+"$@"}
-			shift
-			;;
-
-      -\?|-h)		func_usage					;;
-      --help)		opt_help=:					;;
-      --version)	func_version					;;
-
-      -*)		func_fatal_help "unrecognized option \`$opt'"	;;
-
-      *)		nonopt="$opt"
-			break
-			;;
-    esac
-  done
-
-
-  case $host in
-    *cygwin* | *mingw* | *pw32* | *cegcc*)
-      # don't eliminate duplications in $postdeps and $predeps
-      opt_duplicate_compiler_generated_deps=:
-      ;;
-    *)
-      opt_duplicate_compiler_generated_deps=$opt_duplicate_deps
-      ;;
-  esac
-
-  # Having warned about all mis-specified options, bail out if
-  # anything was wrong.
-  $exit_cmd $EXIT_FAILURE
-}
-
-# func_check_version_match
-# Ensure that we are using m4 macros, and libtool script from the same
-# release of libtool.
-func_check_version_match ()
-{
-  if test "$package_revision" != "$macro_revision"; then
-    if test "$VERSION" != "$macro_version"; then
-      if test -z "$macro_version"; then
-        cat >&2 <<_LT_EOF
-$progname: Version mismatch error.  This is $PACKAGE $VERSION, but the
-$progname: definition of this LT_INIT comes from an older release.
-$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION
-$progname: and run autoconf again.
-_LT_EOF
-      else
-        cat >&2 <<_LT_EOF
-$progname: Version mismatch error.  This is $PACKAGE $VERSION, but the
-$progname: definition of this LT_INIT comes from $PACKAGE $macro_version.
-$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION
-$progname: and run autoconf again.
-_LT_EOF
-      fi
-    else
-      cat >&2 <<_LT_EOF
-$progname: Version mismatch error.  This is $PACKAGE $VERSION, revision $package_revision,
-$progname: but the definition of this LT_INIT comes from revision $macro_revision.
-$progname: You should recreate aclocal.m4 with macros from revision $package_revision
-$progname: of $PACKAGE $VERSION and run autoconf again.
-_LT_EOF
-    fi
-
-    exit $EXIT_MISMATCH
-  fi
-}
-
-
-## ----------- ##
-##    Main.    ##
-## ----------- ##
-
-$opt_help || {
-  # Sanity checks first:
-  func_check_version_match
-
-  if test "$build_libtool_libs" != yes && test "$build_old_libs" != yes; then
-    func_fatal_configuration "not configured to build any kind of library"
-  fi
-
-  test -z "$mode" && func_fatal_error "error: you must specify a MODE."
-
-
-  # Darwin sucks
-  eval std_shrext=\"$shrext_cmds\"
-
-
-  # Only execute mode is allowed to have -dlopen flags.
-  if test -n "$execute_dlfiles" && test "$mode" != execute; then
-    func_error "unrecognized option \`-dlopen'"
-    $ECHO "$help" 1>&2
-    exit $EXIT_FAILURE
-  fi
-
-  # Change the help message to a mode-specific one.
-  generic_help="$help"
-  help="Try \`$progname --help --mode=$mode' for more information."
-}
-
-
-# func_lalib_p file
-# True iff FILE is a libtool `.la' library or `.lo' object file.
-# This function is only a basic sanity check; it will hardly flush out
-# determined imposters.
-func_lalib_p ()
-{
-    test -f "$1" &&
-      $SED -e 4q "$1" 2>/dev/null \
-        | $GREP "^# Generated by .*$PACKAGE" > /dev/null 2>&1
-}
-
-# func_lalib_unsafe_p file
-# True iff FILE is a libtool `.la' library or `.lo' object file.
-# This function implements the same check as func_lalib_p without
-# resorting to external programs.  To this end, it redirects stdin and
-# closes it afterwards, without saving the original file descriptor.
-# As a safety measure, use it only where a negative result would be
-# fatal anyway.  Works if `file' does not exist.
-func_lalib_unsafe_p ()
-{
-    lalib_p=no
-    if test -f "$1" && test -r "$1" && exec 5<&0 <"$1"; then
-	for lalib_p_l in 1 2 3 4
-	do
-	    read lalib_p_line
-	    case "$lalib_p_line" in
-		\#\ Generated\ by\ *$PACKAGE* ) lalib_p=yes; break;;
-	    esac
-	done
-	exec 0<&5 5<&-
-    fi
-    test "$lalib_p" = yes
-}
-
-# func_ltwrapper_script_p file
-# True iff FILE is a libtool wrapper script
-# This function is only a basic sanity check; it will hardly flush out
-# determined imposters.
-func_ltwrapper_script_p ()
-{
-    func_lalib_p "$1"
-}
-
-# func_ltwrapper_executable_p file
-# True iff FILE is a libtool wrapper executable
-# This function is only a basic sanity check; it will hardly flush out
-# determined imposters.
-func_ltwrapper_executable_p ()
-{
-    func_ltwrapper_exec_suffix=
-    case $1 in
-    *.exe) ;;
-    *) func_ltwrapper_exec_suffix=.exe ;;
-    esac
-    $GREP "$magic_exe" "$1$func_ltwrapper_exec_suffix" >/dev/null 2>&1
-}
-
-# func_ltwrapper_scriptname file
-# Assumes file is an ltwrapper_executable
-# uses $file to determine the appropriate filename for a
-# temporary ltwrapper_script.
-func_ltwrapper_scriptname ()
-{
-    func_ltwrapper_scriptname_result=""
-    if func_ltwrapper_executable_p "$1"; then
-	func_dirname_and_basename "$1" "" "."
-	func_stripname '' '.exe' "$func_basename_result"
-	func_ltwrapper_scriptname_result="$func_dirname_result/$objdir/${func_stripname_result}_ltshwrapper"
-    fi
-}
-
-# func_ltwrapper_p file
-# True iff FILE is a libtool wrapper script or wrapper executable
-# This function is only a basic sanity check; it will hardly flush out
-# determined imposters.
-func_ltwrapper_p ()
-{
-    func_ltwrapper_script_p "$1" || func_ltwrapper_executable_p "$1"
-}
-
-
-# func_execute_cmds commands fail_cmd
-# Execute tilde-delimited COMMANDS.
-# If FAIL_CMD is given, eval that upon failure.
-# FAIL_CMD may read-access the current command in variable CMD!
-func_execute_cmds ()
-{
-    $opt_debug
-    save_ifs=$IFS; IFS='~'
-    for cmd in $1; do
-      IFS=$save_ifs
-      eval cmd=\"$cmd\"
-      func_show_eval "$cmd" "${2-:}"
-    done
-    IFS=$save_ifs
-}
-
-
-# func_source file
-# Source FILE, adding directory component if necessary.
-# Note that it is not necessary on cygwin/mingw to append a dot to
-# FILE even if both FILE and FILE.exe exist: automatic-append-.exe
-# behavior happens only for exec(3), not for open(2)!  Also, sourcing
-# `FILE.' does not work on cygwin managed mounts.
-func_source ()
-{
-    $opt_debug
-    case $1 in
-    */* | *\\*)	. "$1" ;;
-    *)		. "./$1" ;;
-    esac
-}
-
-
-# func_infer_tag arg
-# Infer tagged configuration to use if any are available and
-# if one wasn't chosen via the "--tag" command line option.
-# Only attempt this if the compiler in the base compile
-# command doesn't match the default compiler.
-# arg is usually of the form 'gcc ...'
-func_infer_tag ()
-{
-    $opt_debug
-    if test -n "$available_tags" && test -z "$tagname"; then
-      CC_quoted=
-      for arg in $CC; do
-        func_quote_for_eval "$arg"
-	CC_quoted="$CC_quoted $func_quote_for_eval_result"
-      done
-      case $@ in
-      # Blanks in the command may have been stripped by the calling shell,
-      # but not from the CC environment variable when configure was run.
-      " $CC "* | "$CC "* | " `$ECHO $CC` "* | "`$ECHO $CC` "* | " $CC_quoted"* | "$CC_quoted "* | " `$ECHO $CC_quoted` "* | "`$ECHO $CC_quoted` "*) ;;
-      # Blanks at the start of $base_compile will cause this to fail
-      # if we don't check for them as well.
-      *)
-	for z in $available_tags; do
-	  if $GREP "^# ### BEGIN LIBTOOL TAG CONFIG: $z$" < "$progpath" > /dev/null; then
-	    # Evaluate the configuration.
-	    eval "`${SED} -n -e '/^# ### BEGIN LIBTOOL TAG CONFIG: '$z'$/,/^# ### END LIBTOOL TAG CONFIG: '$z'$/p' < $progpath`"
-	    CC_quoted=
-	    for arg in $CC; do
-	      # Double-quote args containing other shell metacharacters.
-	      func_quote_for_eval "$arg"
-	      CC_quoted="$CC_quoted $func_quote_for_eval_result"
-	    done
-	    case "$@ " in
-	      " $CC "* | "$CC "* | " `$ECHO $CC` "* | "`$ECHO $CC` "* | " $CC_quoted"* | "$CC_quoted "* | " `$ECHO $CC_quoted` "* | "`$ECHO $CC_quoted` "*)
-	      # The compiler in the base compile command matches
-	      # the one in the tagged configuration.
-	      # Assume this is the tagged configuration we want.
-	      tagname=$z
-	      break
-	      ;;
-	    esac
-	  fi
-	done
-	# If $tagname still isn't set, then no tagged configuration
-	# was found and let the user know that the "--tag" command
-	# line option must be used.
-	if test -z "$tagname"; then
-	  func_echo "unable to infer tagged configuration"
-	  func_fatal_error "specify a tag with \`--tag'"
-#	else
-#	  func_verbose "using $tagname tagged configuration"
-	fi
-	;;
-      esac
-    fi
-}
-
-
-
-# func_write_libtool_object output_name pic_name nonpic_name
-# Create a libtool object file (analogous to a ".la" file),
-# but don't create it if we're doing a dry run.
-func_write_libtool_object ()
-{
-    write_libobj=${1}
-    if test "$build_libtool_libs" = yes; then
-      write_lobj=\'${2}\'
-    else
-      write_lobj=none
-    fi
-
-    if test "$build_old_libs" = yes; then
-      write_oldobj=\'${3}\'
-    else
-      write_oldobj=none
-    fi
-
-    $opt_dry_run || {
-      cat >${write_libobj}T <<EOF
-# $write_libobj - a libtool object file
-# Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# Name of the PIC object.
-pic_object=$write_lobj
-
-# Name of the non-PIC object
-non_pic_object=$write_oldobj
-
-EOF
-      $MV "${write_libobj}T" "${write_libobj}"
-    }
-}
-
-# func_mode_compile arg...
-func_mode_compile ()
-{
-    $opt_debug
-    # Get the compilation command and the source file.
-    base_compile=
-    srcfile="$nonopt"  #  always keep a non-empty value in "srcfile"
-    suppress_opt=yes
-    suppress_output=
-    arg_mode=normal
-    libobj=
-    later=
-    pie_flag=
-
-    for arg
-    do
-      case $arg_mode in
-      arg  )
-	# do not "continue".  Instead, add this to base_compile
-	lastarg="$arg"
-	arg_mode=normal
-	;;
-
-      target )
-	libobj="$arg"
-	arg_mode=normal
-	continue
-	;;
-
-      normal )
-	# Accept any command-line options.
-	case $arg in
-	-o)
-	  test -n "$libobj" && \
-	    func_fatal_error "you cannot specify \`-o' more than once"
-	  arg_mode=target
-	  continue
-	  ;;
-
-	-pie | -fpie | -fPIE)
-          pie_flag="$pie_flag $arg"
-	  continue
-	  ;;
-
-	-shared | -static | -prefer-pic | -prefer-non-pic)
-	  later="$later $arg"
-	  continue
-	  ;;
-
-	-no-suppress)
-	  suppress_opt=no
-	  continue
-	  ;;
-
-	-Xcompiler)
-	  arg_mode=arg  #  the next one goes into the "base_compile" arg list
-	  continue      #  The current "srcfile" will either be retained or
-	  ;;            #  replaced later.  I would guess that would be a bug.
-
-	-Wc,*)
-	  func_stripname '-Wc,' '' "$arg"
-	  args=$func_stripname_result
-	  lastarg=
-	  save_ifs="$IFS"; IFS=','
-	  for arg in $args; do
-	    IFS="$save_ifs"
-	    func_quote_for_eval "$arg"
-	    lastarg="$lastarg $func_quote_for_eval_result"
-	  done
-	  IFS="$save_ifs"
-	  func_stripname ' ' '' "$lastarg"
-	  lastarg=$func_stripname_result
-
-	  # Add the arguments to base_compile.
-	  base_compile="$base_compile $lastarg"
-	  continue
-	  ;;
-
-	*)
-	  # Accept the current argument as the source file.
-	  # The previous "srcfile" becomes the current argument.
-	  #
-	  lastarg="$srcfile"
-	  srcfile="$arg"
-	  ;;
-	esac  #  case $arg
-	;;
-      esac    #  case $arg_mode
-
-      # Aesthetically quote the previous argument.
-      func_quote_for_eval "$lastarg"
-      base_compile="$base_compile $func_quote_for_eval_result"
-    done # for arg
-
-    case $arg_mode in
-    arg)
-      func_fatal_error "you must specify an argument for -Xcompile"
-      ;;
-    target)
-      func_fatal_error "you must specify a target with \`-o'"
-      ;;
-    *)
-      # Get the name of the library object.
-      test -z "$libobj" && {
-	func_basename "$srcfile"
-	libobj="$func_basename_result"
-      }
-      ;;
-    esac
-
-    # Recognize several different file suffixes.
-    # If the user specifies -o file.o, it is replaced with file.lo
-    case $libobj in
-    *.[cCFSifmso] | \
-    *.ada | *.adb | *.ads | *.asm | \
-    *.c++ | *.cc | *.ii | *.class | *.cpp | *.cxx | \
-    *.[fF][09]? | *.for | *.java | *.obj | *.sx)
-      func_xform "$libobj"
-      libobj=$func_xform_result
-      ;;
-    esac
-
-    case $libobj in
-    *.lo) func_lo2o "$libobj"; obj=$func_lo2o_result ;;
-    *)
-      func_fatal_error "cannot determine name of library object from \`$libobj'"
-      ;;
-    esac
-
-    func_infer_tag $base_compile
-
-    for arg in $later; do
-      case $arg in
-      -shared)
-	test "$build_libtool_libs" != yes && \
-	  func_fatal_configuration "can not build a shared library"
-	build_old_libs=no
-	continue
-	;;
-
-      -static)
-	build_libtool_libs=no
-	build_old_libs=yes
-	continue
-	;;
-
-      -prefer-pic)
-	pic_mode=yes
-	continue
-	;;
-
-      -prefer-non-pic)
-	pic_mode=no
-	continue
-	;;
-      esac
-    done
-
-    func_quote_for_eval "$libobj"
-    test "X$libobj" != "X$func_quote_for_eval_result" \
-      && $ECHO "X$libobj" | $GREP '[]~#^*{};<>?"'"'"'	 &()|`$[]' \
-      && func_warning "libobj name \`$libobj' may not contain shell special characters."
-    func_dirname_and_basename "$obj" "/" ""
-    objname="$func_basename_result"
-    xdir="$func_dirname_result"
-    lobj=${xdir}$objdir/$objname
-
-    test -z "$base_compile" && \
-      func_fatal_help "you must specify a compilation command"
-
-    # Delete any leftover library objects.
-    if test "$build_old_libs" = yes; then
-      removelist="$obj $lobj $libobj ${libobj}T"
-    else
-      removelist="$lobj $libobj ${libobj}T"
-    fi
-
-    # On Cygwin there's no "real" PIC flag so we must build both object types
-    case $host_os in
-    cygwin* | mingw* | pw32* | os2* | cegcc*)
-      pic_mode=default
-      ;;
-    esac
-    if test "$pic_mode" = no && test "$deplibs_check_method" != pass_all; then
-      # non-PIC code in shared libraries is not supported
-      pic_mode=default
-    fi
-
-    # Calculate the filename of the output object if compiler does
-    # not support -o with -c
-    if test "$compiler_c_o" = no; then
-      output_obj=`$ECHO "X$srcfile" | $Xsed -e 's%^.*/%%' -e 's%\.[^.]*$%%'`.${objext}
-      lockfile="$output_obj.lock"
-    else
-      output_obj=
-      need_locks=no
-      lockfile=
-    fi
-
-    # Lock this critical section if it is needed
-    # We use this script file to make the link, it avoids creating a new file
-    if test "$need_locks" = yes; then
-      until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do
-	func_echo "Waiting for $lockfile to be removed"
-	sleep 2
-      done
-    elif test "$need_locks" = warn; then
-      if test -f "$lockfile"; then
-	$ECHO "\
-*** ERROR, $lockfile exists and contains:
-`cat $lockfile 2>/dev/null`
-
-This indicates that another process is trying to use the same
-temporary object file, and libtool could not work around it because
-your compiler does not support \`-c' and \`-o' together.  If you
-repeat this compilation, it may succeed, by chance, but you had better
-avoid parallel builds (make -j) in this platform, or get a better
-compiler."
-
-	$opt_dry_run || $RM $removelist
-	exit $EXIT_FAILURE
-      fi
-      removelist="$removelist $output_obj"
-      $ECHO "$srcfile" > "$lockfile"
-    fi
-
-    $opt_dry_run || $RM $removelist
-    removelist="$removelist $lockfile"
-    trap '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE' 1 2 15
-
-    if test -n "$fix_srcfile_path"; then
-      eval srcfile=\"$fix_srcfile_path\"
-    fi
-    func_quote_for_eval "$srcfile"
-    qsrcfile=$func_quote_for_eval_result
-
-    # Only build a PIC object if we are building libtool libraries.
-    if test "$build_libtool_libs" = yes; then
-      # Without this assignment, base_compile gets emptied.
-      fbsd_hideous_sh_bug=$base_compile
-
-      if test "$pic_mode" != no; then
-	command="$base_compile $qsrcfile $pic_flag"
-      else
-	# Don't build PIC code
-	command="$base_compile $qsrcfile"
-      fi
-
-      func_mkdir_p "$xdir$objdir"
-
-      if test -z "$output_obj"; then
-	# Place PIC objects in $objdir
-	command="$command -o $lobj"
-      fi
-
-      func_show_eval_locale "$command"	\
-          'test -n "$output_obj" && $RM $removelist; exit $EXIT_FAILURE'
-
-      if test "$need_locks" = warn &&
-	 test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then
-	$ECHO "\
-*** ERROR, $lockfile contains:
-`cat $lockfile 2>/dev/null`
-
-but it should contain:
-$srcfile
-
-This indicates that another process is trying to use the same
-temporary object file, and libtool could not work around it because
-your compiler does not support \`-c' and \`-o' together.  If you
-repeat this compilation, it may succeed, by chance, but you had better
-avoid parallel builds (make -j) in this platform, or get a better
-compiler."
-
-	$opt_dry_run || $RM $removelist
-	exit $EXIT_FAILURE
-      fi
-
-      # Just move the object if needed, then go on to compile the next one
-      if test -n "$output_obj" && test "X$output_obj" != "X$lobj"; then
-	func_show_eval '$MV "$output_obj" "$lobj"' \
-	  'error=$?; $opt_dry_run || $RM $removelist; exit $error'
-      fi
-
-      # Allow error messages only from the first compilation.
-      if test "$suppress_opt" = yes; then
-	suppress_output=' >/dev/null 2>&1'
-      fi
-    fi
-
-    # Only build a position-dependent object if we build old libraries.
-    if test "$build_old_libs" = yes; then
-      if test "$pic_mode" != yes; then
-	# Don't build PIC code
-	command="$base_compile $qsrcfile$pie_flag"
-      else
-	command="$base_compile $qsrcfile $pic_flag"
-      fi
-      if test "$compiler_c_o" = yes; then
-	command="$command -o $obj"
-      fi
-
-      # Suppress compiler output if we already did a PIC compilation.
-      command="$command$suppress_output"
-      func_show_eval_locale "$command" \
-        '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE'
-
-      if test "$need_locks" = warn &&
-	 test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then
-	$ECHO "\
-*** ERROR, $lockfile contains:
-`cat $lockfile 2>/dev/null`
-
-but it should contain:
-$srcfile
-
-This indicates that another process is trying to use the same
-temporary object file, and libtool could not work around it because
-your compiler does not support \`-c' and \`-o' together.  If you
-repeat this compilation, it may succeed, by chance, but you had better
-avoid parallel builds (make -j) in this platform, or get a better
-compiler."
-
-	$opt_dry_run || $RM $removelist
-	exit $EXIT_FAILURE
-      fi
-
-      # Just move the object if needed
-      if test -n "$output_obj" && test "X$output_obj" != "X$obj"; then
-	func_show_eval '$MV "$output_obj" "$obj"' \
-	  'error=$?; $opt_dry_run || $RM $removelist; exit $error'
-      fi
-    fi
-
-    $opt_dry_run || {
-      func_write_libtool_object "$libobj" "$objdir/$objname" "$objname"
-
-      # Unlock the critical section if it was locked
-      if test "$need_locks" != no; then
-	removelist=$lockfile
-        $RM "$lockfile"
-      fi
-    }
-
-    exit $EXIT_SUCCESS
-}
-
-$opt_help || {
-test "$mode" = compile && func_mode_compile ${1+"$@"}
-}
-
-func_mode_help ()
-{
-    # We need to display help for each of the modes.
-    case $mode in
-      "")
-        # Generic help is extracted from the usage comments
-        # at the start of this file.
-        func_help
-        ;;
-
-      clean)
-        $ECHO \
-"Usage: $progname [OPTION]... --mode=clean RM [RM-OPTION]... FILE...
-
-Remove files from the build directory.
-
-RM is the name of the program to use to delete files associated with each FILE
-(typically \`/bin/rm').  RM-OPTIONS are options (such as \`-f') to be passed
-to RM.
-
-If FILE is a libtool library, object or program, all the files associated
-with it are deleted. Otherwise, only FILE itself is deleted using RM."
-        ;;
-
-      compile)
-      $ECHO \
-"Usage: $progname [OPTION]... --mode=compile COMPILE-COMMAND... SOURCEFILE
-
-Compile a source file into a libtool library object.
-
-This mode accepts the following additional options:
-
-  -o OUTPUT-FILE    set the output file name to OUTPUT-FILE
-  -no-suppress      do not suppress compiler output for multiple passes
-  -prefer-pic       try to building PIC objects only
-  -prefer-non-pic   try to building non-PIC objects only
-  -shared           do not build a \`.o' file suitable for static linking
-  -static           only build a \`.o' file suitable for static linking
-
-COMPILE-COMMAND is a command to be used in creating a \`standard' object file
-from the given SOURCEFILE.
-
-The output file name is determined by removing the directory component from
-SOURCEFILE, then substituting the C source code suffix \`.c' with the
-library object suffix, \`.lo'."
-        ;;
-
-      execute)
-        $ECHO \
-"Usage: $progname [OPTION]... --mode=execute COMMAND [ARGS]...
-
-Automatically set library path, then run a program.
-
-This mode accepts the following additional options:
-
-  -dlopen FILE      add the directory containing FILE to the library path
-
-This mode sets the library path environment variable according to \`-dlopen'
-flags.
-
-If any of the ARGS are libtool executable wrappers, then they are translated
-into their corresponding uninstalled binary, and any of their required library
-directories are added to the library path.
-
-Then, COMMAND is executed, with ARGS as arguments."
-        ;;
-
-      finish)
-        $ECHO \
-"Usage: $progname [OPTION]... --mode=finish [LIBDIR]...
-
-Complete the installation of libtool libraries.
-
-Each LIBDIR is a directory that contains libtool libraries.
-
-The commands that this mode executes may require superuser privileges.  Use
-the \`--dry-run' option if you just want to see what would be executed."
-        ;;
-
-      install)
-        $ECHO \
-"Usage: $progname [OPTION]... --mode=install INSTALL-COMMAND...
-
-Install executables or libraries.
-
-INSTALL-COMMAND is the installation command.  The first component should be
-either the \`install' or \`cp' program.
-
-The following components of INSTALL-COMMAND are treated specially:
-
-  -inst-prefix PREFIX-DIR  Use PREFIX-DIR as a staging area for installation
-
-The rest of the components are interpreted as arguments to that command (only
-BSD-compatible install options are recognized)."
-        ;;
-
-      link)
-        $ECHO \
-"Usage: $progname [OPTION]... --mode=link LINK-COMMAND...
-
-Link object files or libraries together to form another library, or to
-create an executable program.
-
-LINK-COMMAND is a command using the C compiler that you would use to create
-a program from several object files.
-
-The following components of LINK-COMMAND are treated specially:
-
-  -all-static       do not do any dynamic linking at all
-  -avoid-version    do not add a version suffix if possible
-  -dlopen FILE      \`-dlpreopen' FILE if it cannot be dlopened at runtime
-  -dlpreopen FILE   link in FILE and add its symbols to lt_preloaded_symbols
-  -export-dynamic   allow symbols from OUTPUT-FILE to be resolved with dlsym(3)
-  -export-symbols SYMFILE
-                    try to export only the symbols listed in SYMFILE
-  -export-symbols-regex REGEX
-                    try to export only the symbols matching REGEX
-  -LLIBDIR          search LIBDIR for required installed libraries
-  -lNAME            OUTPUT-FILE requires the installed library libNAME
-  -module           build a library that can dlopened
-  -no-fast-install  disable the fast-install mode
-  -no-install       link a not-installable executable
-  -no-undefined     declare that a library does not refer to external symbols
-  -o OUTPUT-FILE    create OUTPUT-FILE from the specified objects
-  -objectlist FILE  Use a list of object files found in FILE to specify objects
-  -precious-files-regex REGEX
-                    don't remove output files matching REGEX
-  -release RELEASE  specify package release information
-  -rpath LIBDIR     the created library will eventually be installed in LIBDIR
-  -R[ ]LIBDIR       add LIBDIR to the runtime path of programs and libraries
-  -shared           only do dynamic linking of libtool libraries
-  -shrext SUFFIX    override the standard shared library file extension
-  -static           do not do any dynamic linking of uninstalled libtool libraries
-  -static-libtool-libs
-                    do not do any dynamic linking of libtool libraries
-  -version-info CURRENT[:REVISION[:AGE]]
-                    specify library version info [each variable defaults to 0]
-  -weak LIBNAME     declare that the target provides the LIBNAME interface
-
-All other options (arguments beginning with \`-') are ignored.
-
-Every other argument is treated as a filename.  Files ending in \`.la' are
-treated as uninstalled libtool libraries, other files are standard or library
-object files.
-
-If the OUTPUT-FILE ends in \`.la', then a libtool library is created,
-only library objects (\`.lo' files) may be specified, and \`-rpath' is
-required, except when creating a convenience library.
-
-If OUTPUT-FILE ends in \`.a' or \`.lib', then a standard library is created
-using \`ar' and \`ranlib', or on Windows using \`lib'.
-
-If OUTPUT-FILE ends in \`.lo' or \`.${objext}', then a reloadable object file
-is created, otherwise an executable program is created."
-        ;;
-
-      uninstall)
-        $ECHO \
-"Usage: $progname [OPTION]... --mode=uninstall RM [RM-OPTION]... FILE...
-
-Remove libraries from an installation directory.
-
-RM is the name of the program to use to delete files associated with each FILE
-(typically \`/bin/rm').  RM-OPTIONS are options (such as \`-f') to be passed
-to RM.
-
-If FILE is a libtool library, all the files associated with it are deleted.
-Otherwise, only FILE itself is deleted using RM."
-        ;;
-
-      *)
-        func_fatal_help "invalid operation mode \`$mode'"
-        ;;
-    esac
-
-    $ECHO
-    $ECHO "Try \`$progname --help' for more information about other modes."
-
-    exit $?
-}
-
-  # Now that we've collected a possible --mode arg, show help if necessary
-  $opt_help && func_mode_help
-
-
-# func_mode_execute arg...
-func_mode_execute ()
-{
-    $opt_debug
-    # The first argument is the command name.
-    cmd="$nonopt"
-    test -z "$cmd" && \
-      func_fatal_help "you must specify a COMMAND"
-
-    # Handle -dlopen flags immediately.
-    for file in $execute_dlfiles; do
-      test -f "$file" \
-	|| func_fatal_help "\`$file' is not a file"
-
-      dir=
-      case $file in
-      *.la)
-	# Check to see that this really is a libtool archive.
-	func_lalib_unsafe_p "$file" \
-	  || func_fatal_help "\`$lib' is not a valid libtool archive"
-
-	# Read the libtool library.
-	dlname=
-	library_names=
-	func_source "$file"
-
-	# Skip this library if it cannot be dlopened.
-	if test -z "$dlname"; then
-	  # Warn if it was a shared library.
-	  test -n "$library_names" && \
-	    func_warning "\`$file' was not linked with \`-export-dynamic'"
-	  continue
-	fi
-
-	func_dirname "$file" "" "."
-	dir="$func_dirname_result"
-
-	if test -f "$dir/$objdir/$dlname"; then
-	  dir="$dir/$objdir"
-	else
-	  if test ! -f "$dir/$dlname"; then
-	    func_fatal_error "cannot find \`$dlname' in \`$dir' or \`$dir/$objdir'"
-	  fi
-	fi
-	;;
-
-      *.lo)
-	# Just add the directory containing the .lo file.
-	func_dirname "$file" "" "."
-	dir="$func_dirname_result"
-	;;
-
-      *)
-	func_warning "\`-dlopen' is ignored for non-libtool libraries and objects"
-	continue
-	;;
-      esac
-
-      # Get the absolute pathname.
-      absdir=`cd "$dir" && pwd`
-      test -n "$absdir" && dir="$absdir"
-
-      # Now add the directory to shlibpath_var.
-      if eval "test -z \"\$$shlibpath_var\""; then
-	eval "$shlibpath_var=\"\$dir\""
-      else
-	eval "$shlibpath_var=\"\$dir:\$$shlibpath_var\""
-      fi
-    done
-
-    # This variable tells wrapper scripts just to set shlibpath_var
-    # rather than running their programs.
-    libtool_execute_magic="$magic"
-
-    # Check if any of the arguments is a wrapper script.
-    args=
-    for file
-    do
-      case $file in
-      -*) ;;
-      *)
-	# Do a test to see if this is really a libtool program.
-	if func_ltwrapper_script_p "$file"; then
-	  func_source "$file"
-	  # Transform arg to wrapped name.
-	  file="$progdir/$program"
-	elif func_ltwrapper_executable_p "$file"; then
-	  func_ltwrapper_scriptname "$file"
-	  func_source "$func_ltwrapper_scriptname_result"
-	  # Transform arg to wrapped name.
-	  file="$progdir/$program"
-	fi
-	;;
-      esac
-      # Quote arguments (to preserve shell metacharacters).
-      func_quote_for_eval "$file"
-      args="$args $func_quote_for_eval_result"
-    done
-
-    if test "X$opt_dry_run" = Xfalse; then
-      if test -n "$shlibpath_var"; then
-	# Export the shlibpath_var.
-	eval "export $shlibpath_var"
-      fi
-
-      # Restore saved environment variables
-      for lt_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES
-      do
-	eval "if test \"\${save_$lt_var+set}\" = set; then
-                $lt_var=\$save_$lt_var; export $lt_var
-	      else
-		$lt_unset $lt_var
-	      fi"
-      done
-
-      # Now prepare to actually exec the command.
-      exec_cmd="\$cmd$args"
-    else
-      # Display what would be done.
-      if test -n "$shlibpath_var"; then
-	eval "\$ECHO \"\$shlibpath_var=\$$shlibpath_var\""
-	$ECHO "export $shlibpath_var"
-      fi
-      $ECHO "$cmd$args"
-      exit $EXIT_SUCCESS
-    fi
-}
-
-test "$mode" = execute && func_mode_execute ${1+"$@"}
-
-
-# func_mode_finish arg...
-func_mode_finish ()
-{
-    $opt_debug
-    libdirs="$nonopt"
-    admincmds=
-
-    if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then
-      for dir
-      do
-	libdirs="$libdirs $dir"
-      done
-
-      for libdir in $libdirs; do
-	if test -n "$finish_cmds"; then
-	  # Do each command in the finish commands.
-	  func_execute_cmds "$finish_cmds" 'admincmds="$admincmds
-'"$cmd"'"'
-	fi
-	if test -n "$finish_eval"; then
-	  # Do the single finish_eval.
-	  eval cmds=\"$finish_eval\"
-	  $opt_dry_run || eval "$cmds" || admincmds="$admincmds
-       $cmds"
-	fi
-      done
-    fi
-
-    # Exit here if they wanted silent mode.
-    $opt_silent && exit $EXIT_SUCCESS
-
-    $ECHO "X----------------------------------------------------------------------" | $Xsed
-    $ECHO "Libraries have been installed in:"
-    for libdir in $libdirs; do
-      $ECHO "   $libdir"
-    done
-    $ECHO
-    $ECHO "If you ever happen to want to link against installed libraries"
-    $ECHO "in a given directory, LIBDIR, you must either use libtool, and"
-    $ECHO "specify the full pathname of the library, or use the \`-LLIBDIR'"
-    $ECHO "flag during linking and do at least one of the following:"
-    if test -n "$shlibpath_var"; then
-      $ECHO "   - add LIBDIR to the \`$shlibpath_var' environment variable"
-      $ECHO "     during execution"
-    fi
-    if test -n "$runpath_var"; then
-      $ECHO "   - add LIBDIR to the \`$runpath_var' environment variable"
-      $ECHO "     during linking"
-    fi
-    if test -n "$hardcode_libdir_flag_spec"; then
-      libdir=LIBDIR
-      eval flag=\"$hardcode_libdir_flag_spec\"
-
-      $ECHO "   - use the \`$flag' linker flag"
-    fi
-    if test -n "$admincmds"; then
-      $ECHO "   - have your system administrator run these commands:$admincmds"
-    fi
-    if test -f /etc/ld.so.conf; then
-      $ECHO "   - have your system administrator add LIBDIR to \`/etc/ld.so.conf'"
-    fi
-    $ECHO
-
-    $ECHO "See any operating system documentation about shared libraries for"
-    case $host in
-      solaris2.[6789]|solaris2.1[0-9])
-        $ECHO "more information, such as the ld(1), crle(1) and ld.so(8) manual"
-	$ECHO "pages."
-	;;
-      *)
-        $ECHO "more information, such as the ld(1) and ld.so(8) manual pages."
-        ;;
-    esac
-    $ECHO "X----------------------------------------------------------------------" | $Xsed
-    exit $EXIT_SUCCESS
-}
-
-test "$mode" = finish && func_mode_finish ${1+"$@"}
-
-
-# func_mode_install arg...
-func_mode_install ()
-{
-    $opt_debug
-    # There may be an optional sh(1) argument at the beginning of
-    # install_prog (especially on Windows NT).
-    if test "$nonopt" = "$SHELL" || test "$nonopt" = /bin/sh ||
-       # Allow the use of GNU shtool's install command.
-       $ECHO "X$nonopt" | $GREP shtool >/dev/null; then
-      # Aesthetically quote it.
-      func_quote_for_eval "$nonopt"
-      install_prog="$func_quote_for_eval_result "
-      arg=$1
-      shift
-    else
-      install_prog=
-      arg=$nonopt
-    fi
-
-    # The real first argument should be the name of the installation program.
-    # Aesthetically quote it.
-    func_quote_for_eval "$arg"
-    install_prog="$install_prog$func_quote_for_eval_result"
-
-    # We need to accept at least all the BSD install flags.
-    dest=
-    files=
-    opts=
-    prev=
-    install_type=
-    isdir=no
-    stripme=
-    for arg
-    do
-      if test -n "$dest"; then
-	files="$files $dest"
-	dest=$arg
-	continue
-      fi
-
-      case $arg in
-      -d) isdir=yes ;;
-      -f)
-	case " $install_prog " in
-	*[\\\ /]cp\ *) ;;
-	*) prev=$arg ;;
-	esac
-	;;
-      -g | -m | -o)
-	prev=$arg
-	;;
-      -s)
-	stripme=" -s"
-	continue
-	;;
-      -*)
-	;;
-      *)
-	# If the previous option needed an argument, then skip it.
-	if test -n "$prev"; then
-	  prev=
-	else
-	  dest=$arg
-	  continue
-	fi
-	;;
-      esac
-
-      # Aesthetically quote the argument.
-      func_quote_for_eval "$arg"
-      install_prog="$install_prog $func_quote_for_eval_result"
-    done
-
-    test -z "$install_prog" && \
-      func_fatal_help "you must specify an install program"
-
-    test -n "$prev" && \
-      func_fatal_help "the \`$prev' option requires an argument"
-
-    if test -z "$files"; then
-      if test -z "$dest"; then
-	func_fatal_help "no file or destination specified"
-      else
-	func_fatal_help "you must specify a destination"
-      fi
-    fi
-
-    # Strip any trailing slash from the destination.
-    func_stripname '' '/' "$dest"
-    dest=$func_stripname_result
-
-    # Check to see that the destination is a directory.
-    test -d "$dest" && isdir=yes
-    if test "$isdir" = yes; then
-      destdir="$dest"
-      destname=
-    else
-      func_dirname_and_basename "$dest" "" "."
-      destdir="$func_dirname_result"
-      destname="$func_basename_result"
-
-      # Not a directory, so check to see that there is only one file specified.
-      set dummy $files; shift
-      test "$#" -gt 1 && \
-	func_fatal_help "\`$dest' is not a directory"
-    fi
-    case $destdir in
-    [\\/]* | [A-Za-z]:[\\/]*) ;;
-    *)
-      for file in $files; do
-	case $file in
-	*.lo) ;;
-	*)
-	  func_fatal_help "\`$destdir' must be an absolute directory name"
-	  ;;
-	esac
-      done
-      ;;
-    esac
-
-    # This variable tells wrapper scripts just to set variables rather
-    # than running their programs.
-    libtool_install_magic="$magic"
-
-    staticlibs=
-    future_libdirs=
-    current_libdirs=
-    for file in $files; do
-
-      # Do each installation.
-      case $file in
-      *.$libext)
-	# Do the static libraries later.
-	staticlibs="$staticlibs $file"
-	;;
-
-      *.la)
-	# Check to see that this really is a libtool archive.
-	func_lalib_unsafe_p "$file" \
-	  || func_fatal_help "\`$file' is not a valid libtool archive"
-
-	library_names=
-	old_library=
-	relink_command=
-	func_source "$file"
-
-	# Add the libdir to current_libdirs if it is the destination.
-	if test "X$destdir" = "X$libdir"; then
-	  case "$current_libdirs " in
-	  *" $libdir "*) ;;
-	  *) current_libdirs="$current_libdirs $libdir" ;;
-	  esac
-	else
-	  # Note the libdir as a future libdir.
-	  case "$future_libdirs " in
-	  *" $libdir "*) ;;
-	  *) future_libdirs="$future_libdirs $libdir" ;;
-	  esac
-	fi
-
-	func_dirname "$file" "/" ""
-	dir="$func_dirname_result"
-	dir="$dir$objdir"
-
-	if test -n "$relink_command"; then
-	  # Determine the prefix the user has applied to our future dir.
-	  inst_prefix_dir=`$ECHO "X$destdir" | $Xsed -e "s%$libdir\$%%"`
-
-	  # Don't allow the user to place us outside of our expected
-	  # location b/c this prevents finding dependent libraries that
-	  # are installed to the same prefix.
-	  # At present, this check doesn't affect windows .dll's that
-	  # are installed into $libdir/../bin (currently, that works fine)
-	  # but it's something to keep an eye on.
-	  test "$inst_prefix_dir" = "$destdir" && \
-	    func_fatal_error "error: cannot install \`$file' to a directory not ending in $libdir"
-
-	  if test -n "$inst_prefix_dir"; then
-	    # Stick the inst_prefix_dir data into the link command.
-	    relink_command=`$ECHO "X$relink_command" | $Xsed -e "s%@inst_prefix_dir@%-inst-prefix-dir $inst_prefix_dir%"`
-	  else
-	    relink_command=`$ECHO "X$relink_command" | $Xsed -e "s%@inst_prefix_dir@%%"`
-	  fi
-
-	  func_warning "relinking \`$file'"
-	  func_show_eval "$relink_command" \
-	    'func_fatal_error "error: relink \`$file'\'' with the above command before installing it"'
-	fi
-
-	# See the names of the shared library.
-	set dummy $library_names; shift
-	if test -n "$1"; then
-	  realname="$1"
-	  shift
-
-	  srcname="$realname"
-	  test -n "$relink_command" && srcname="$realname"T
-
-	  # Install the shared library and build the symlinks.
-	  func_show_eval "$install_prog $dir/$srcname $destdir/$realname" \
-	      'exit $?'
-	  tstripme="$stripme"
-	  case $host_os in
-	  cygwin* | mingw* | pw32* | cegcc*)
-	    case $realname in
-	    *.dll.a)
-	      tstripme=""
-	      ;;
-	    esac
-	    ;;
-	  esac
-	  if test -n "$tstripme" && test -n "$striplib"; then
-	    func_show_eval "$striplib $destdir/$realname" 'exit $?'
-	  fi
-
-	  if test "$#" -gt 0; then
-	    # Delete the old symlinks, and create new ones.
-	    # Try `ln -sf' first, because the `ln' binary might depend on
-	    # the symlink we replace!  Solaris /bin/ln does not understand -f,
-	    # so we also need to try rm && ln -s.
-	    for linkname
-	    do
-	      test "$linkname" != "$realname" \
-		&& func_show_eval "(cd $destdir && { $LN_S -f $realname $linkname || { $RM $linkname && $LN_S $realname $linkname; }; })"
-	    done
-	  fi
-
-	  # Do each command in the postinstall commands.
-	  lib="$destdir/$realname"
-	  func_execute_cmds "$postinstall_cmds" 'exit $?'
-	fi
-
-	# Install the pseudo-library for information purposes.
-	func_basename "$file"
-	name="$func_basename_result"
-	instname="$dir/$name"i
-	func_show_eval "$install_prog $instname $destdir/$name" 'exit $?'
-
-	# Maybe install the static library, too.
-	test -n "$old_library" && staticlibs="$staticlibs $dir/$old_library"
-	;;
-
-      *.lo)
-	# Install (i.e. copy) a libtool object.
-
-	# Figure out destination file name, if it wasn't already specified.
-	if test -n "$destname"; then
-	  destfile="$destdir/$destname"
-	else
-	  func_basename "$file"
-	  destfile="$func_basename_result"
-	  destfile="$destdir/$destfile"
-	fi
-
-	# Deduce the name of the destination old-style object file.
-	case $destfile in
-	*.lo)
-	  func_lo2o "$destfile"
-	  staticdest=$func_lo2o_result
-	  ;;
-	*.$objext)
-	  staticdest="$destfile"
-	  destfile=
-	  ;;
-	*)
-	  func_fatal_help "cannot copy a libtool object to \`$destfile'"
-	  ;;
-	esac
-
-	# Install the libtool object if requested.
-	test -n "$destfile" && \
-	  func_show_eval "$install_prog $file $destfile" 'exit $?'
-
-	# Install the old object if enabled.
-	if test "$build_old_libs" = yes; then
-	  # Deduce the name of the old-style object file.
-	  func_lo2o "$file"
-	  staticobj=$func_lo2o_result
-	  func_show_eval "$install_prog \$staticobj \$staticdest" 'exit $?'
-	fi
-	exit $EXIT_SUCCESS
-	;;
-
-      *)
-	# Figure out destination file name, if it wasn't already specified.
-	if test -n "$destname"; then
-	  destfile="$destdir/$destname"
-	else
-	  func_basename "$file"
-	  destfile="$func_basename_result"
-	  destfile="$destdir/$destfile"
-	fi
-
-	# If the file is missing, and there is a .exe on the end, strip it
-	# because it is most likely a libtool script we actually want to
-	# install
-	stripped_ext=""
-	case $file in
-	  *.exe)
-	    if test ! -f "$file"; then
-	      func_stripname '' '.exe' "$file"
-	      file=$func_stripname_result
-	      stripped_ext=".exe"
-	    fi
-	    ;;
-	esac
-
-	# Do a test to see if this is really a libtool program.
-	case $host in
-	*cygwin* | *mingw*)
-	    if func_ltwrapper_executable_p "$file"; then
-	      func_ltwrapper_scriptname "$file"
-	      wrapper=$func_ltwrapper_scriptname_result
-	    else
-	      func_stripname '' '.exe' "$file"
-	      wrapper=$func_stripname_result
-	    fi
-	    ;;
-	*)
-	    wrapper=$file
-	    ;;
-	esac
-	if func_ltwrapper_script_p "$wrapper"; then
-	  notinst_deplibs=
-	  relink_command=
-
-	  func_source "$wrapper"
-
-	  # Check the variables that should have been set.
-	  test -z "$generated_by_libtool_version" && \
-	    func_fatal_error "invalid libtool wrapper script \`$wrapper'"
-
-	  finalize=yes
-	  for lib in $notinst_deplibs; do
-	    # Check to see that each library is installed.
-	    libdir=
-	    if test -f "$lib"; then
-	      func_source "$lib"
-	    fi
-	    libfile="$libdir/"`$ECHO "X$lib" | $Xsed -e 's%^.*/%%g'` ### testsuite: skip nested quoting test
-	    if test -n "$libdir" && test ! -f "$libfile"; then
-	      func_warning "\`$lib' has not been installed in \`$libdir'"
-	      finalize=no
-	    fi
-	  done
-
-	  relink_command=
-	  func_source "$wrapper"
-
-	  outputname=
-	  if test "$fast_install" = no && test -n "$relink_command"; then
-	    $opt_dry_run || {
-	      if test "$finalize" = yes; then
-	        tmpdir=`func_mktempdir`
-		func_basename "$file$stripped_ext"
-		file="$func_basename_result"
-	        outputname="$tmpdir/$file"
-	        # Replace the output file specification.
-	        relink_command=`$ECHO "X$relink_command" | $Xsed -e 's%@OUTPUT@%'"$outputname"'%g'`
-
-	        $opt_silent || {
-	          func_quote_for_expand "$relink_command"
-		  eval "func_echo $func_quote_for_expand_result"
-	        }
-	        if eval "$relink_command"; then :
-	          else
-		  func_error "error: relink \`$file' with the above command before installing it"
-		  $opt_dry_run || ${RM}r "$tmpdir"
-		  continue
-	        fi
-	        file="$outputname"
-	      else
-	        func_warning "cannot relink \`$file'"
-	      fi
-	    }
-	  else
-	    # Install the binary that we compiled earlier.
-	    file=`$ECHO "X$file$stripped_ext" | $Xsed -e "s%\([^/]*\)$%$objdir/\1%"`
-	  fi
-	fi
-
-	# remove .exe since cygwin /usr/bin/install will append another
-	# one anyway
-	case $install_prog,$host in
-	*/usr/bin/install*,*cygwin*)
-	  case $file:$destfile in
-	  *.exe:*.exe)
-	    # this is ok
-	    ;;
-	  *.exe:*)
-	    destfile=$destfile.exe
-	    ;;
-	  *:*.exe)
-	    func_stripname '' '.exe' "$destfile"
-	    destfile=$func_stripname_result
-	    ;;
-	  esac
-	  ;;
-	esac
-	func_show_eval "$install_prog\$stripme \$file \$destfile" 'exit $?'
-	$opt_dry_run || if test -n "$outputname"; then
-	  ${RM}r "$tmpdir"
-	fi
-	;;
-      esac
-    done
-
-    for file in $staticlibs; do
-      func_basename "$file"
-      name="$func_basename_result"
-
-      # Set up the ranlib parameters.
-      oldlib="$destdir/$name"
-
-      func_show_eval "$install_prog \$file \$oldlib" 'exit $?'
-
-      if test -n "$stripme" && test -n "$old_striplib"; then
-	func_show_eval "$old_striplib $oldlib" 'exit $?'
-      fi
-
-      # Do each command in the postinstall commands.
-      func_execute_cmds "$old_postinstall_cmds" 'exit $?'
-    done
-
-    test -n "$future_libdirs" && \
-      func_warning "remember to run \`$progname --finish$future_libdirs'"
-
-    if test -n "$current_libdirs"; then
-      # Maybe just do a dry run.
-      $opt_dry_run && current_libdirs=" -n$current_libdirs"
-      exec_cmd='$SHELL $progpath $preserve_args --finish$current_libdirs'
-    else
-      exit $EXIT_SUCCESS
-    fi
-}
-
-test "$mode" = install && func_mode_install ${1+"$@"}
-
-
-# func_generate_dlsyms outputname originator pic_p
-# Extract symbols from dlprefiles and create ${outputname}S.o with
-# a dlpreopen symbol table.
-func_generate_dlsyms ()
-{
-    $opt_debug
-    my_outputname="$1"
-    my_originator="$2"
-    my_pic_p="${3-no}"
-    my_prefix=`$ECHO "$my_originator" | sed 's%[^a-zA-Z0-9]%_%g'`
-    my_dlsyms=
-
-    if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then
-      if test -n "$NM" && test -n "$global_symbol_pipe"; then
-	my_dlsyms="${my_outputname}S.c"
-      else
-	func_error "not configured to extract global symbols from dlpreopened files"
-      fi
-    fi
-
-    if test -n "$my_dlsyms"; then
-      case $my_dlsyms in
-      "") ;;
-      *.c)
-	# Discover the nlist of each of the dlfiles.
-	nlist="$output_objdir/${my_outputname}.nm"
-
-	func_show_eval "$RM $nlist ${nlist}S ${nlist}T"
-
-	# Parse the name list into a source file.
-	func_verbose "creating $output_objdir/$my_dlsyms"
-
-	$opt_dry_run || $ECHO > "$output_objdir/$my_dlsyms" "\
-/* $my_dlsyms - symbol resolution table for \`$my_outputname' dlsym emulation. */
-/* Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION */
-
-#ifdef __cplusplus
-extern \"C\" {
-#endif
-
-/* External symbol declarations for the compiler. */\
-"
-
-	if test "$dlself" = yes; then
-	  func_verbose "generating symbol list for \`$output'"
-
-	  $opt_dry_run || echo ': @PROGRAM@ ' > "$nlist"
-
-	  # Add our own program objects to the symbol list.
-	  progfiles=`$ECHO "X$objs$old_deplibs" | $SP2NL | $Xsed -e "$lo2o" | $NL2SP`
-	  for progfile in $progfiles; do
-	    func_verbose "extracting global C symbols from \`$progfile'"
-	    $opt_dry_run || eval "$NM $progfile | $global_symbol_pipe >> '$nlist'"
-	  done
-
-	  if test -n "$exclude_expsyms"; then
-	    $opt_dry_run || {
-	      eval '$EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T'
-	      eval '$MV "$nlist"T "$nlist"'
-	    }
-	  fi
-
-	  if test -n "$export_symbols_regex"; then
-	    $opt_dry_run || {
-	      eval '$EGREP -e "$export_symbols_regex" "$nlist" > "$nlist"T'
-	      eval '$MV "$nlist"T "$nlist"'
-	    }
-	  fi
-
-	  # Prepare the list of exported symbols
-	  if test -z "$export_symbols"; then
-	    export_symbols="$output_objdir/$outputname.exp"
-	    $opt_dry_run || {
-	      $RM $export_symbols
-	      eval "${SED} -n -e '/^: @PROGRAM@ $/d' -e 's/^.* \(.*\)$/\1/p' "'< "$nlist" > "$export_symbols"'
-	      case $host in
-	      *cygwin* | *mingw* | *cegcc* )
-                eval "echo EXPORTS "'> "$output_objdir/$outputname.def"'
-                eval 'cat "$export_symbols" >> "$output_objdir/$outputname.def"'
-	        ;;
-	      esac
-	    }
-	  else
-	    $opt_dry_run || {
-	      eval "${SED} -e 's/\([].[*^$]\)/\\\\\1/g' -e 's/^/ /' -e 's/$/$/'"' < "$export_symbols" > "$output_objdir/$outputname.exp"'
-	      eval '$GREP -f "$output_objdir/$outputname.exp" < "$nlist" > "$nlist"T'
-	      eval '$MV "$nlist"T "$nlist"'
-	      case $host in
-	        *cygwin | *mingw* | *cegcc* )
-	          eval "echo EXPORTS "'> "$output_objdir/$outputname.def"'
-	          eval 'cat "$nlist" >> "$output_objdir/$outputname.def"'
-	          ;;
-	      esac
-	    }
-	  fi
-	fi
-
-	for dlprefile in $dlprefiles; do
-	  func_verbose "extracting global C symbols from \`$dlprefile'"
-	  func_basename "$dlprefile"
-	  name="$func_basename_result"
-	  $opt_dry_run || {
-	    eval '$ECHO ": $name " >> "$nlist"'
-	    eval "$NM $dlprefile 2>/dev/null | $global_symbol_pipe >> '$nlist'"
-	  }
-	done
-
-	$opt_dry_run || {
-	  # Make sure we have at least an empty file.
-	  test -f "$nlist" || : > "$nlist"
-
-	  if test -n "$exclude_expsyms"; then
-	    $EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T
-	    $MV "$nlist"T "$nlist"
-	  fi
-
-	  # Try sorting and uniquifying the output.
-	  if $GREP -v "^: " < "$nlist" |
-	      if sort -k 3 </dev/null >/dev/null 2>&1; then
-		sort -k 3
-	      else
-		sort +2
-	      fi |
-	      uniq > "$nlist"S; then
-	    :
-	  else
-	    $GREP -v "^: " < "$nlist" > "$nlist"S
-	  fi
-
-	  if test -f "$nlist"S; then
-	    eval "$global_symbol_to_cdecl"' < "$nlist"S >> "$output_objdir/$my_dlsyms"'
-	  else
-	    $ECHO '/* NONE */' >> "$output_objdir/$my_dlsyms"
-	  fi
-
-	  $ECHO >> "$output_objdir/$my_dlsyms" "\
-
-/* The mapping between symbol names and symbols.  */
-typedef struct {
-  const char *name;
-  void *address;
-} lt_dlsymlist;
-"
-	  case $host in
-	  *cygwin* | *mingw* | *cegcc* )
-	    $ECHO >> "$output_objdir/$my_dlsyms" "\
-/* DATA imports from DLLs on WIN32 con't be const, because
-   runtime relocations are performed -- see ld's documentation
-   on pseudo-relocs.  */"
-	    lt_dlsym_const= ;;
-	  *osf5*)
-	    echo >> "$output_objdir/$my_dlsyms" "\
-/* This system does not cope well with relocations in const data */"
-	    lt_dlsym_const= ;;
-	  *)
-	    lt_dlsym_const=const ;;
-	  esac
-
-	  $ECHO >> "$output_objdir/$my_dlsyms" "\
-extern $lt_dlsym_const lt_dlsymlist
-lt_${my_prefix}_LTX_preloaded_symbols[];
-$lt_dlsym_const lt_dlsymlist
-lt_${my_prefix}_LTX_preloaded_symbols[] =
-{\
-  { \"$my_originator\", (void *) 0 },"
-
-	  case $need_lib_prefix in
-	  no)
-	    eval "$global_symbol_to_c_name_address" < "$nlist" >> "$output_objdir/$my_dlsyms"
-	    ;;
-	  *)
-	    eval "$global_symbol_to_c_name_address_lib_prefix" < "$nlist" >> "$output_objdir/$my_dlsyms"
-	    ;;
-	  esac
-	  $ECHO >> "$output_objdir/$my_dlsyms" "\
-  {0, (void *) 0}
-};
-
-/* This works around a problem in FreeBSD linker */
-#ifdef FREEBSD_WORKAROUND
-static const void *lt_preloaded_setup() {
-  return lt_${my_prefix}_LTX_preloaded_symbols;
-}
-#endif
-
-#ifdef __cplusplus
-}
-#endif\
-"
-	} # !$opt_dry_run
-
-	pic_flag_for_symtable=
-	case "$compile_command " in
-	*" -static "*) ;;
-	*)
-	  case $host in
-	  # compiling the symbol table file with pic_flag works around
-	  # a FreeBSD bug that causes programs to crash when -lm is
-	  # linked before any other PIC object.  But we must not use
-	  # pic_flag when linking with -static.  The problem exists in
-	  # FreeBSD 2.2.6 and is fixed in FreeBSD 3.1.
-	  *-*-freebsd2*|*-*-freebsd3.0*|*-*-freebsdelf3.0*)
-	    pic_flag_for_symtable=" $pic_flag -DFREEBSD_WORKAROUND" ;;
-	  *-*-hpux*)
-	    pic_flag_for_symtable=" $pic_flag"  ;;
-	  *)
-	    if test "X$my_pic_p" != Xno; then
-	      pic_flag_for_symtable=" $pic_flag"
-	    fi
-	    ;;
-	  esac
-	  ;;
-	esac
-	symtab_cflags=
-	for arg in $LTCFLAGS; do
-	  case $arg in
-	  -pie | -fpie | -fPIE) ;;
-	  *) symtab_cflags="$symtab_cflags $arg" ;;
-	  esac
-	done
-
-	# Now compile the dynamic symbol file.
-	func_show_eval '(cd $output_objdir && $LTCC$symtab_cflags -c$no_builtin_flag$pic_flag_for_symtable "$my_dlsyms")' 'exit $?'
-
-	# Clean up the generated files.
-	func_show_eval '$RM "$output_objdir/$my_dlsyms" "$nlist" "${nlist}S" "${nlist}T"'
-
-	# Transform the symbol file into the correct name.
-	symfileobj="$output_objdir/${my_outputname}S.$objext"
-	case $host in
-	*cygwin* | *mingw* | *cegcc* )
-	  if test -f "$output_objdir/$my_outputname.def"; then
-	    compile_command=`$ECHO "X$compile_command" | $Xsed -e "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"`
-	    finalize_command=`$ECHO "X$finalize_command" | $Xsed -e "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"`
-	  else
-	    compile_command=`$ECHO "X$compile_command" | $Xsed -e "s%@SYMFILE@%$symfileobj%"`
-	    finalize_command=`$ECHO "X$finalize_command" | $Xsed -e "s%@SYMFILE@%$symfileobj%"`
-	  fi
-	  ;;
-	*)
-	  compile_command=`$ECHO "X$compile_command" | $Xsed -e "s%@SYMFILE@%$symfileobj%"`
-	  finalize_command=`$ECHO "X$finalize_command" | $Xsed -e "s%@SYMFILE@%$symfileobj%"`
-	  ;;
-	esac
-	;;
-      *)
-	func_fatal_error "unknown suffix for \`$my_dlsyms'"
-	;;
-      esac
-    else
-      # We keep going just in case the user didn't refer to
-      # lt_preloaded_symbols.  The linker will fail if global_symbol_pipe
-      # really was required.
-
-      # Nullify the symbol file.
-      compile_command=`$ECHO "X$compile_command" | $Xsed -e "s% @SYMFILE@%%"`
-      finalize_command=`$ECHO "X$finalize_command" | $Xsed -e "s% @SYMFILE@%%"`
-    fi
-}
-
-# func_win32_libid arg
-# return the library type of file 'arg'
-#
-# Need a lot of goo to handle *both* DLLs and import libs
-# Has to be a shell function in order to 'eat' the argument
-# that is supplied when $file_magic_command is called.
-func_win32_libid ()
-{
-  $opt_debug
-  win32_libid_type="unknown"
-  win32_fileres=`file -L $1 2>/dev/null`
-  case $win32_fileres in
-  *ar\ archive\ import\ library*) # definitely import
-    win32_libid_type="x86 archive import"
-    ;;
-  *ar\ archive*) # could be an import, or static
-    if eval $OBJDUMP -f $1 | $SED -e '10q' 2>/dev/null |
-       $EGREP 'file format pe-i386(.*architecture: i386)?' >/dev/null ; then
-      win32_nmres=`eval $NM -f posix -A $1 |
-	$SED -n -e '
-	    1,100{
-		/ I /{
-		    s,.*,import,
-		    p
-		    q
-		}
-	    }'`
-      case $win32_nmres in
-      import*)  win32_libid_type="x86 archive import";;
-      *)        win32_libid_type="x86 archive static";;
-      esac
-    fi
-    ;;
-  *DLL*)
-    win32_libid_type="x86 DLL"
-    ;;
-  *executable*) # but shell scripts are "executable" too...
-    case $win32_fileres in
-    *MS\ Windows\ PE\ Intel*)
-      win32_libid_type="x86 DLL"
-      ;;
-    esac
-    ;;
-  esac
-  $ECHO "$win32_libid_type"
-}
-
-
-
-# func_extract_an_archive dir oldlib
-func_extract_an_archive ()
-{
-    $opt_debug
-    f_ex_an_ar_dir="$1"; shift
-    f_ex_an_ar_oldlib="$1"
-    func_show_eval "(cd \$f_ex_an_ar_dir && $AR x \"\$f_ex_an_ar_oldlib\")" 'exit $?'
-    if ($AR t "$f_ex_an_ar_oldlib" | sort | sort -uc >/dev/null 2>&1); then
-     :
-    else
-      func_fatal_error "object name conflicts in archive: $f_ex_an_ar_dir/$f_ex_an_ar_oldlib"
-    fi
-}
-
-
-# func_extract_archives gentop oldlib ...
-func_extract_archives ()
-{
-    $opt_debug
-    my_gentop="$1"; shift
-    my_oldlibs=${1+"$@"}
-    my_oldobjs=""
-    my_xlib=""
-    my_xabs=""
-    my_xdir=""
-
-    for my_xlib in $my_oldlibs; do
-      # Extract the objects.
-      case $my_xlib in
-	[\\/]* | [A-Za-z]:[\\/]*) my_xabs="$my_xlib" ;;
-	*) my_xabs=`pwd`"/$my_xlib" ;;
-      esac
-      func_basename "$my_xlib"
-      my_xlib="$func_basename_result"
-      my_xlib_u=$my_xlib
-      while :; do
-        case " $extracted_archives " in
-	*" $my_xlib_u "*)
-	  func_arith $extracted_serial + 1
-	  extracted_serial=$func_arith_result
-	  my_xlib_u=lt$extracted_serial-$my_xlib ;;
-	*) break ;;
-	esac
-      done
-      extracted_archives="$extracted_archives $my_xlib_u"
-      my_xdir="$my_gentop/$my_xlib_u"
-
-      func_mkdir_p "$my_xdir"
-
-      case $host in
-      *-darwin*)
-	func_verbose "Extracting $my_xabs"
-	# Do not bother doing anything if just a dry run
-	$opt_dry_run || {
-	  darwin_orig_dir=`pwd`
-	  cd $my_xdir || exit $?
-	  darwin_archive=$my_xabs
-	  darwin_curdir=`pwd`
-	  darwin_base_archive=`basename "$darwin_archive"`
-	  darwin_arches=`$LIPO -info "$darwin_archive" 2>/dev/null | $GREP Architectures 2>/dev/null || true`
-	  if test -n "$darwin_arches"; then
-	    darwin_arches=`$ECHO "$darwin_arches" | $SED -e 's/.*are://'`
-	    darwin_arch=
-	    func_verbose "$darwin_base_archive has multiple architectures $darwin_arches"
-	    for darwin_arch in  $darwin_arches ; do
-	      func_mkdir_p "unfat-$$/${darwin_base_archive}-${darwin_arch}"
-	      $LIPO -thin $darwin_arch -output "unfat-$$/${darwin_base_archive}-${darwin_arch}/${darwin_base_archive}" "${darwin_archive}"
-	      cd "unfat-$$/${darwin_base_archive}-${darwin_arch}"
-	      func_extract_an_archive "`pwd`" "${darwin_base_archive}"
-	      cd "$darwin_curdir"
-	      $RM "unfat-$$/${darwin_base_archive}-${darwin_arch}/${darwin_base_archive}"
-	    done # $darwin_arches
-            ## Okay now we've a bunch of thin objects, gotta fatten them up :)
-	    darwin_filelist=`find unfat-$$ -type f -name \*.o -print -o -name \*.lo -print | $SED -e "$basename" | sort -u`
-	    darwin_file=
-	    darwin_files=
-	    for darwin_file in $darwin_filelist; do
-	      darwin_files=`find unfat-$$ -name $darwin_file -print | $NL2SP`
-	      $LIPO -create -output "$darwin_file" $darwin_files
-	    done # $darwin_filelist
-	    $RM -rf unfat-$$
-	    cd "$darwin_orig_dir"
-	  else
-	    cd $darwin_orig_dir
-	    func_extract_an_archive "$my_xdir" "$my_xabs"
-	  fi # $darwin_arches
-	} # !$opt_dry_run
-	;;
-      *)
-        func_extract_an_archive "$my_xdir" "$my_xabs"
-	;;
-      esac
-      my_oldobjs="$my_oldobjs "`find $my_xdir -name \*.$objext -print -o -name \*.lo -print | $NL2SP`
-    done
-
-    func_extract_archives_result="$my_oldobjs"
-}
-
-
-
-# func_emit_wrapper_part1 [arg=no]
-#
-# Emit the first part of a libtool wrapper script on stdout.
-# For more information, see the description associated with
-# func_emit_wrapper(), below.
-func_emit_wrapper_part1 ()
-{
-	func_emit_wrapper_part1_arg1=no
-	if test -n "$1" ; then
-	  func_emit_wrapper_part1_arg1=$1
-	fi
-
-	$ECHO "\
-#! $SHELL
-
-# $output - temporary wrapper script for $objdir/$outputname
-# Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION
-#
-# The $output program cannot be directly executed until all the libtool
-# libraries that it depends on are installed.
-#
-# This wrapper script should never be moved out of the build directory.
-# If it is, it will not operate correctly.
-
-# Sed substitution that helps us do robust quoting.  It backslashifies
-# metacharacters that are still active within double-quoted strings.
-Xsed='${SED} -e 1s/^X//'
-sed_quote_subst='$sed_quote_subst'
-
-# Be Bourne compatible
-if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then
-  emulate sh
-  NULLCMD=:
-  # Zsh 3.x and 4.x performs word splitting on \${1+\"\$@\"}, which
-  # is contrary to our usage.  Disable this feature.
-  alias -g '\${1+\"\$@\"}'='\"\$@\"'
-  setopt NO_GLOB_SUBST
-else
-  case \`(set -o) 2>/dev/null\` in *posix*) set -o posix;; esac
-fi
-BIN_SH=xpg4; export BIN_SH # for Tru64
-DUALCASE=1; export DUALCASE # for MKS sh
-
-# The HP-UX ksh and POSIX shell print the target directory to stdout
-# if CDPATH is set.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
-
-relink_command=\"$relink_command\"
-
-# This environment variable determines our operation mode.
-if test \"\$libtool_install_magic\" = \"$magic\"; then
-  # install mode needs the following variables:
-  generated_by_libtool_version='$macro_version'
-  notinst_deplibs='$notinst_deplibs'
-else
-  # When we are sourced in execute mode, \$file and \$ECHO are already set.
-  if test \"\$libtool_execute_magic\" != \"$magic\"; then
-    ECHO=\"$qecho\"
-    file=\"\$0\"
-    # Make sure echo works.
-    if test \"X\$1\" = X--no-reexec; then
-      # Discard the --no-reexec flag, and continue.
-      shift
-    elif test \"X\`{ \$ECHO '\t'; } 2>/dev/null\`\" = 'X\t'; then
-      # Yippee, \$ECHO works!
-      :
-    else
-      # Restart under the correct shell, and then maybe \$ECHO will work.
-      exec $SHELL \"\$0\" --no-reexec \${1+\"\$@\"}
-    fi
-  fi\
-"
-	$ECHO "\
-
-  # Find the directory that this script lives in.
-  thisdir=\`\$ECHO \"X\$file\" | \$Xsed -e 's%/[^/]*$%%'\`
-  test \"x\$thisdir\" = \"x\$file\" && thisdir=.
-
-  # Follow symbolic links until we get to the real thisdir.
-  file=\`ls -ld \"\$file\" | ${SED} -n 's/.*-> //p'\`
-  while test -n \"\$file\"; do
-    destdir=\`\$ECHO \"X\$file\" | \$Xsed -e 's%/[^/]*\$%%'\`
-
-    # If there was a directory component, then change thisdir.
-    if test \"x\$destdir\" != \"x\$file\"; then
-      case \"\$destdir\" in
-      [\\\\/]* | [A-Za-z]:[\\\\/]*) thisdir=\"\$destdir\" ;;
-      *) thisdir=\"\$thisdir/\$destdir\" ;;
-      esac
-    fi
-
-    file=\`\$ECHO \"X\$file\" | \$Xsed -e 's%^.*/%%'\`
-    file=\`ls -ld \"\$thisdir/\$file\" | ${SED} -n 's/.*-> //p'\`
-  done
-"
-}
-# end: func_emit_wrapper_part1
-
-# func_emit_wrapper_part2 [arg=no]
-#
-# Emit the second part of a libtool wrapper script on stdout.
-# For more information, see the description associated with
-# func_emit_wrapper(), below.
-func_emit_wrapper_part2 ()
-{
-	func_emit_wrapper_part2_arg1=no
-	if test -n "$1" ; then
-	  func_emit_wrapper_part2_arg1=$1
-	fi
-
-	$ECHO "\
-
-  # Usually 'no', except on cygwin/mingw when embedded into
-  # the cwrapper.
-  WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=$func_emit_wrapper_part2_arg1
-  if test \"\$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR\" = \"yes\"; then
-    # special case for '.'
-    if test \"\$thisdir\" = \".\"; then
-      thisdir=\`pwd\`
-    fi
-    # remove .libs from thisdir
-    case \"\$thisdir\" in
-    *[\\\\/]$objdir ) thisdir=\`\$ECHO \"X\$thisdir\" | \$Xsed -e 's%[\\\\/][^\\\\/]*$%%'\` ;;
-    $objdir )   thisdir=. ;;
-    esac
-  fi
-
-  # Try to get the absolute directory name.
-  absdir=\`cd \"\$thisdir\" && pwd\`
-  test -n \"\$absdir\" && thisdir=\"\$absdir\"
-"
-
-	if test "$fast_install" = yes; then
-	  $ECHO "\
-  program=lt-'$outputname'$exeext
-  progdir=\"\$thisdir/$objdir\"
-
-  if test ! -f \"\$progdir/\$program\" ||
-     { file=\`ls -1dt \"\$progdir/\$program\" \"\$progdir/../\$program\" 2>/dev/null | ${SED} 1q\`; \\
-       test \"X\$file\" != \"X\$progdir/\$program\"; }; then
-
-    file=\"\$\$-\$program\"
-
-    if test ! -d \"\$progdir\"; then
-      $MKDIR \"\$progdir\"
-    else
-      $RM \"\$progdir/\$file\"
-    fi"
-
-	  $ECHO "\
-
-    # relink executable if necessary
-    if test -n \"\$relink_command\"; then
-      if relink_command_output=\`eval \$relink_command 2>&1\`; then :
-      else
-	$ECHO \"\$relink_command_output\" >&2
-	$RM \"\$progdir/\$file\"
-	exit 1
-      fi
-    fi
-
-    $MV \"\$progdir/\$file\" \"\$progdir/\$program\" 2>/dev/null ||
-    { $RM \"\$progdir/\$program\";
-      $MV \"\$progdir/\$file\" \"\$progdir/\$program\"; }
-    $RM \"\$progdir/\$file\"
-  fi"
-	else
-	  $ECHO "\
-  program='$outputname'
-  progdir=\"\$thisdir/$objdir\"
-"
-	fi
-
-	$ECHO "\
-
-  if test -f \"\$progdir/\$program\"; then"
-
-	# Export our shlibpath_var if we have one.
-	if test "$shlibpath_overrides_runpath" = yes && test -n "$shlibpath_var" && test -n "$temp_rpath"; then
-	  $ECHO "\
-    # Add our own library path to $shlibpath_var
-    $shlibpath_var=\"$temp_rpath\$$shlibpath_var\"
-
-    # Some systems cannot cope with colon-terminated $shlibpath_var
-    # The second colon is a workaround for a bug in BeOS R4 sed
-    $shlibpath_var=\`\$ECHO \"X\$$shlibpath_var\" | \$Xsed -e 's/::*\$//'\`
-
-    export $shlibpath_var
-"
-	fi
-
-	# fixup the dll searchpath if we need to.
-	if test -n "$dllsearchpath"; then
-	  $ECHO "\
-    # Add the dll search path components to the executable PATH
-    PATH=$dllsearchpath:\$PATH
-"
-	fi
-
-	$ECHO "\
-    if test \"\$libtool_execute_magic\" != \"$magic\"; then
-      # Run the actual program with our arguments.
-"
-	case $host in
-	# Backslashes separate directories on plain windows
-	*-*-mingw | *-*-os2* | *-cegcc*)
-	  $ECHO "\
-      exec \"\$progdir\\\\\$program\" \${1+\"\$@\"}
-"
-	  ;;
-
-	*)
-	  $ECHO "\
-      exec \"\$progdir/\$program\" \${1+\"\$@\"}
-"
-	  ;;
-	esac
-	$ECHO "\
-      \$ECHO \"\$0: cannot exec \$program \$*\" 1>&2
-      exit 1
-    fi
-  else
-    # The program doesn't exist.
-    \$ECHO \"\$0: error: \\\`\$progdir/\$program' does not exist\" 1>&2
-    \$ECHO \"This script is just a wrapper for \$program.\" 1>&2
-    $ECHO \"See the $PACKAGE documentation for more information.\" 1>&2
-    exit 1
-  fi
-fi\
-"
-}
-# end: func_emit_wrapper_part2
-
-
-# func_emit_wrapper [arg=no]
-#
-# Emit a libtool wrapper script on stdout.
-# Don't directly open a file because we may want to
-# incorporate the script contents within a cygwin/mingw
-# wrapper executable.  Must ONLY be called from within
-# func_mode_link because it depends on a number of variables
-# set therein.
-#
-# ARG is the value that the WRAPPER_SCRIPT_BELONGS_IN_OBJDIR
-# variable will take.  If 'yes', then the emitted script
-# will assume that the directory in which it is stored is
-# the $objdir directory.  This is a cygwin/mingw-specific
-# behavior.
-func_emit_wrapper ()
-{
-	func_emit_wrapper_arg1=no
-	if test -n "$1" ; then
-	  func_emit_wrapper_arg1=$1
-	fi
-
-	# split this up so that func_emit_cwrapperexe_src
-	# can call each part independently.
-	func_emit_wrapper_part1 "${func_emit_wrapper_arg1}"
-	func_emit_wrapper_part2 "${func_emit_wrapper_arg1}"
-}
-
-
-# func_to_host_path arg
-#
-# Convert paths to host format when used with build tools.
-# Intended for use with "native" mingw (where libtool itself
-# is running under the msys shell), or in the following cross-
-# build environments:
-#    $build          $host
-#    mingw (msys)    mingw  [e.g. native]
-#    cygwin          mingw
-#    *nix + wine     mingw
-# where wine is equipped with the `winepath' executable.
-# In the native mingw case, the (msys) shell automatically
-# converts paths for any non-msys applications it launches,
-# but that facility isn't available from inside the cwrapper.
-# Similar accommodations are necessary for $host mingw and
-# $build cygwin.  Calling this function does no harm for other
-# $host/$build combinations not listed above.
-#
-# ARG is the path (on $build) that should be converted to
-# the proper representation for $host. The result is stored
-# in $func_to_host_path_result.
-func_to_host_path ()
-{
-  func_to_host_path_result="$1"
-  if test -n "$1" ; then
-    case $host in
-      *mingw* )
-        lt_sed_naive_backslashify='s|\\\\*|\\|g;s|/|\\|g;s|\\|\\\\|g'
-        case $build in
-          *mingw* ) # actually, msys
-            # awkward: cmd appends spaces to result
-            lt_sed_strip_trailing_spaces="s/[ ]*\$//"
-            func_to_host_path_tmp1=`( cmd //c echo "$1" |\
-              $SED -e "$lt_sed_strip_trailing_spaces" ) 2>/dev/null || echo ""`
-            func_to_host_path_result=`echo "$func_to_host_path_tmp1" |\
-              $SED -e "$lt_sed_naive_backslashify"`
-            ;;
-          *cygwin* )
-            func_to_host_path_tmp1=`cygpath -w "$1"`
-            func_to_host_path_result=`echo "$func_to_host_path_tmp1" |\
-              $SED -e "$lt_sed_naive_backslashify"`
-            ;;
-          * )
-            # Unfortunately, winepath does not exit with a non-zero
-            # error code, so we are forced to check the contents of
-            # stdout. On the other hand, if the command is not
-            # found, the shell will set an exit code of 127 and print
-            # *an error message* to stdout. So we must check for both
-            # error code of zero AND non-empty stdout, which explains
-            # the odd construction:
-            func_to_host_path_tmp1=`winepath -w "$1" 2>/dev/null`
-            if test "$?" -eq 0 && test -n "${func_to_host_path_tmp1}"; then
-              func_to_host_path_result=`echo "$func_to_host_path_tmp1" |\
-                $SED -e "$lt_sed_naive_backslashify"`
-            else
-              # Allow warning below.
-              func_to_host_path_result=""
-            fi
-            ;;
-        esac
-        if test -z "$func_to_host_path_result" ; then
-          func_error "Could not determine host path corresponding to"
-          func_error "  '$1'"
-          func_error "Continuing, but uninstalled executables may not work."
-          # Fallback:
-          func_to_host_path_result="$1"
-        fi
-        ;;
-    esac
-  fi
-}
-# end: func_to_host_path
-
-# func_to_host_pathlist arg
-#
-# Convert pathlists to host format when used with build tools.
-# See func_to_host_path(), above. This function supports the
-# following $build/$host combinations (but does no harm for
-# combinations not listed here):
-#    $build          $host
-#    mingw (msys)    mingw  [e.g. native]
-#    cygwin          mingw
-#    *nix + wine     mingw
-#
-# Path separators are also converted from $build format to
-# $host format. If ARG begins or ends with a path separator
-# character, it is preserved (but converted to $host format)
-# on output.
-#
-# ARG is a pathlist (on $build) that should be converted to
-# the proper representation on $host. The result is stored
-# in $func_to_host_pathlist_result.
-func_to_host_pathlist ()
-{
-  func_to_host_pathlist_result="$1"
-  if test -n "$1" ; then
-    case $host in
-      *mingw* )
-        lt_sed_naive_backslashify='s|\\\\*|\\|g;s|/|\\|g;s|\\|\\\\|g'
-        # Remove leading and trailing path separator characters from
-        # ARG. msys behavior is inconsistent here, cygpath turns them
-        # into '.;' and ';.', and winepath ignores them completely.
-        func_to_host_pathlist_tmp2="$1"
-        # Once set for this call, this variable should not be
-        # reassigned. It is used in tha fallback case.
-        func_to_host_pathlist_tmp1=`echo "$func_to_host_pathlist_tmp2" |\
-          $SED -e 's|^:*||' -e 's|:*$||'`
-        case $build in
-          *mingw* ) # Actually, msys.
-            # Awkward: cmd appends spaces to result.
-            lt_sed_strip_trailing_spaces="s/[ ]*\$//"
-            func_to_host_pathlist_tmp2=`( cmd //c echo "$func_to_host_pathlist_tmp1" |\
-              $SED -e "$lt_sed_strip_trailing_spaces" ) 2>/dev/null || echo ""`
-            func_to_host_pathlist_result=`echo "$func_to_host_pathlist_tmp2" |\
-              $SED -e "$lt_sed_naive_backslashify"`
-            ;;
-          *cygwin* )
-            func_to_host_pathlist_tmp2=`cygpath -w -p "$func_to_host_pathlist_tmp1"`
-            func_to_host_pathlist_result=`echo "$func_to_host_pathlist_tmp2" |\
-              $SED -e "$lt_sed_naive_backslashify"`
-            ;;
-          * )
-            # unfortunately, winepath doesn't convert pathlists
-            func_to_host_pathlist_result=""
-            func_to_host_pathlist_oldIFS=$IFS
-            IFS=:
-            for func_to_host_pathlist_f in $func_to_host_pathlist_tmp1 ; do
-              IFS=$func_to_host_pathlist_oldIFS
-              if test -n "$func_to_host_pathlist_f" ; then
-                func_to_host_path "$func_to_host_pathlist_f"
-                if test -n "$func_to_host_path_result" ; then
-                  if test -z "$func_to_host_pathlist_result" ; then
-                    func_to_host_pathlist_result="$func_to_host_path_result"
-                  else
-                    func_to_host_pathlist_result="$func_to_host_pathlist_result;$func_to_host_path_result"
-                  fi
-                fi
-              fi
-              IFS=:
-            done
-            IFS=$func_to_host_pathlist_oldIFS
-            ;;
-        esac
-        if test -z "$func_to_host_pathlist_result" ; then
-          func_error "Could not determine the host path(s) corresponding to"
-          func_error "  '$1'"
-          func_error "Continuing, but uninstalled executables may not work."
-          # Fallback. This may break if $1 contains DOS-style drive
-          # specifications. The fix is not to complicate the expression
-          # below, but for the user to provide a working wine installation
-          # with winepath so that path translation in the cross-to-mingw
-          # case works properly.
-          lt_replace_pathsep_nix_to_dos="s|:|;|g"
-          func_to_host_pathlist_result=`echo "$func_to_host_pathlist_tmp1" |\
-            $SED -e "$lt_replace_pathsep_nix_to_dos"`
-        fi
-        # Now, add the leading and trailing path separators back
-        case "$1" in
-          :* ) func_to_host_pathlist_result=";$func_to_host_pathlist_result"
-            ;;
-        esac
-        case "$1" in
-          *: ) func_to_host_pathlist_result="$func_to_host_pathlist_result;"
-            ;;
-        esac
-        ;;
-    esac
-  fi
-}
-# end: func_to_host_pathlist
-
-# func_emit_cwrapperexe_src
-# emit the source code for a wrapper executable on stdout
-# Must ONLY be called from within func_mode_link because
-# it depends on a number of variable set therein.
-func_emit_cwrapperexe_src ()
-{
-	cat <<EOF
-
-/* $cwrappersource - temporary wrapper executable for $objdir/$outputname
-   Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION
-
-   The $output program cannot be directly executed until all the libtool
-   libraries that it depends on are installed.
-
-   This wrapper executable should never be moved out of the build directory.
-   If it is, it will not operate correctly.
-
-   Currently, it simply execs the wrapper *script* "$SHELL $output",
-   but could eventually absorb all of the scripts functionality and
-   exec $objdir/$outputname directly.
-*/
-EOF
-	    cat <<"EOF"
-#include <stdio.h>
-#include <stdlib.h>
-#ifdef _MSC_VER
-# include <direct.h>
-# include <process.h>
-# include <io.h>
-# define setmode _setmode
-#else
-# include <unistd.h>
-# include <stdint.h>
-# ifdef __CYGWIN__
-#  include <io.h>
-#  define HAVE_SETENV
-#  ifdef __STRICT_ANSI__
-char *realpath (const char *, char *);
-int putenv (char *);
-int setenv (const char *, const char *, int);
-#  endif
-# endif
-#endif
-#include <malloc.h>
-#include <stdarg.h>
-#include <assert.h>
-#include <string.h>
-#include <ctype.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <sys/stat.h>
-
-#if defined(PATH_MAX)
-# define LT_PATHMAX PATH_MAX
-#elif defined(MAXPATHLEN)
-# define LT_PATHMAX MAXPATHLEN
-#else
-# define LT_PATHMAX 1024
-#endif
-
-#ifndef S_IXOTH
-# define S_IXOTH 0
-#endif
-#ifndef S_IXGRP
-# define S_IXGRP 0
-#endif
-
-#ifdef _MSC_VER
-# define S_IXUSR _S_IEXEC
-# define stat _stat
-# ifndef _INTPTR_T_DEFINED
-#  define intptr_t int
-# endif
-#endif
-
-#ifndef DIR_SEPARATOR
-# define DIR_SEPARATOR '/'
-# define PATH_SEPARATOR ':'
-#endif
-
-#if defined (_WIN32) || defined (__MSDOS__) || defined (__DJGPP__) || \
-  defined (__OS2__)
-# define HAVE_DOS_BASED_FILE_SYSTEM
-# define FOPEN_WB "wb"
-# ifndef DIR_SEPARATOR_2
-#  define DIR_SEPARATOR_2 '\\'
-# endif
-# ifndef PATH_SEPARATOR_2
-#  define PATH_SEPARATOR_2 ';'
-# endif
-#endif
-
-#ifndef DIR_SEPARATOR_2
-# define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR)
-#else /* DIR_SEPARATOR_2 */
-# define IS_DIR_SEPARATOR(ch) \
-	(((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2))
-#endif /* DIR_SEPARATOR_2 */
-
-#ifndef PATH_SEPARATOR_2
-# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR)
-#else /* PATH_SEPARATOR_2 */
-# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR_2)
-#endif /* PATH_SEPARATOR_2 */
-
-#ifdef __CYGWIN__
-# define FOPEN_WB "wb"
-#endif
-
-#ifndef FOPEN_WB
-# define FOPEN_WB "w"
-#endif
-#ifndef _O_BINARY
-# define _O_BINARY 0
-#endif
-
-#define XMALLOC(type, num)      ((type *) xmalloc ((num) * sizeof(type)))
-#define XFREE(stale) do { \
-  if (stale) { free ((void *) stale); stale = 0; } \
-} while (0)
-
-#undef LTWRAPPER_DEBUGPRINTF
-#if defined DEBUGWRAPPER
-# define LTWRAPPER_DEBUGPRINTF(args) ltwrapper_debugprintf args
-static void
-ltwrapper_debugprintf (const char *fmt, ...)
-{
-    va_list args;
-    va_start (args, fmt);
-    (void) vfprintf (stderr, fmt, args);
-    va_end (args);
-}
-#else
-# define LTWRAPPER_DEBUGPRINTF(args)
-#endif
-
-const char *program_name = NULL;
-
-void *xmalloc (size_t num);
-char *xstrdup (const char *string);
-const char *base_name (const char *name);
-char *find_executable (const char *wrapper);
-char *chase_symlinks (const char *pathspec);
-int make_executable (const char *path);
-int check_executable (const char *path);
-char *strendzap (char *str, const char *pat);
-void lt_fatal (const char *message, ...);
-void lt_setenv (const char *name, const char *value);
-char *lt_extend_str (const char *orig_value, const char *add, int to_end);
-void lt_opt_process_env_set (const char *arg);
-void lt_opt_process_env_prepend (const char *arg);
-void lt_opt_process_env_append (const char *arg);
-int lt_split_name_value (const char *arg, char** name, char** value);
-void lt_update_exe_path (const char *name, const char *value);
-void lt_update_lib_path (const char *name, const char *value);
-
-static const char *script_text_part1 =
-EOF
-
-	    func_emit_wrapper_part1 yes |
-	        $SED -e 's/\([\\"]\)/\\\1/g' \
-	             -e 's/^/  "/' -e 's/$/\\n"/'
-	    echo ";"
-	    cat <<EOF
-
-static const char *script_text_part2 =
-EOF
-	    func_emit_wrapper_part2 yes |
-	        $SED -e 's/\([\\"]\)/\\\1/g' \
-	             -e 's/^/  "/' -e 's/$/\\n"/'
-	    echo ";"
-
-	    cat <<EOF
-const char * MAGIC_EXE = "$magic_exe";
-const char * LIB_PATH_VARNAME = "$shlibpath_var";
-EOF
-
-	    if test "$shlibpath_overrides_runpath" = yes && test -n "$shlibpath_var" && test -n "$temp_rpath"; then
-              func_to_host_pathlist "$temp_rpath"
-	      cat <<EOF
-const char * LIB_PATH_VALUE   = "$func_to_host_pathlist_result";
-EOF
-	    else
-	      cat <<"EOF"
-const char * LIB_PATH_VALUE   = "";
-EOF
-	    fi
-
-	    if test -n "$dllsearchpath"; then
-              func_to_host_pathlist "$dllsearchpath:"
-	      cat <<EOF
-const char * EXE_PATH_VARNAME = "PATH";
-const char * EXE_PATH_VALUE   = "$func_to_host_pathlist_result";
-EOF
-	    else
-	      cat <<"EOF"
-const char * EXE_PATH_VARNAME = "";
-const char * EXE_PATH_VALUE   = "";
-EOF
-	    fi
-
-	    if test "$fast_install" = yes; then
-	      cat <<EOF
-const char * TARGET_PROGRAM_NAME = "lt-$outputname"; /* hopefully, no .exe */
-EOF
-	    else
-	      cat <<EOF
-const char * TARGET_PROGRAM_NAME = "$outputname"; /* hopefully, no .exe */
-EOF
-	    fi
-
-
-	    cat <<"EOF"
-
-#define LTWRAPPER_OPTION_PREFIX         "--lt-"
-#define LTWRAPPER_OPTION_PREFIX_LENGTH  5
-
-static const size_t opt_prefix_len         = LTWRAPPER_OPTION_PREFIX_LENGTH;
-static const char *ltwrapper_option_prefix = LTWRAPPER_OPTION_PREFIX;
-
-static const char *dumpscript_opt       = LTWRAPPER_OPTION_PREFIX "dump-script";
-
-static const size_t env_set_opt_len     = LTWRAPPER_OPTION_PREFIX_LENGTH + 7;
-static const char *env_set_opt          = LTWRAPPER_OPTION_PREFIX "env-set";
-  /* argument is putenv-style "foo=bar", value of foo is set to bar */
-
-static const size_t env_prepend_opt_len = LTWRAPPER_OPTION_PREFIX_LENGTH + 11;
-static const char *env_prepend_opt      = LTWRAPPER_OPTION_PREFIX "env-prepend";
-  /* argument is putenv-style "foo=bar", new value of foo is bar${foo} */
-
-static const size_t env_append_opt_len  = LTWRAPPER_OPTION_PREFIX_LENGTH + 10;
-static const char *env_append_opt       = LTWRAPPER_OPTION_PREFIX "env-append";
-  /* argument is putenv-style "foo=bar", new value of foo is ${foo}bar */
-
-int
-main (int argc, char *argv[])
-{
-  char **newargz;
-  int  newargc;
-  char *tmp_pathspec;
-  char *actual_cwrapper_path;
-  char *actual_cwrapper_name;
-  char *target_name;
-  char *lt_argv_zero;
-  intptr_t rval = 127;
-
-  int i;
-
-  program_name = (char *) xstrdup (base_name (argv[0]));
-  LTWRAPPER_DEBUGPRINTF (("(main) argv[0]      : %s\n", argv[0]));
-  LTWRAPPER_DEBUGPRINTF (("(main) program_name : %s\n", program_name));
-
-  /* very simple arg parsing; don't want to rely on getopt */
-  for (i = 1; i < argc; i++)
-    {
-      if (strcmp (argv[i], dumpscript_opt) == 0)
-	{
-EOF
-	    case "$host" in
-	      *mingw* | *cygwin* )
-		# make stdout use "unix" line endings
-		echo "          setmode(1,_O_BINARY);"
-		;;
-	      esac
-
-	    cat <<"EOF"
-	  printf ("%s", script_text_part1);
-	  printf ("%s", script_text_part2);
-	  return 0;
-	}
-    }
-
-  newargz = XMALLOC (char *, argc + 1);
-  tmp_pathspec = find_executable (argv[0]);
-  if (tmp_pathspec == NULL)
-    lt_fatal ("Couldn't find %s", argv[0]);
-  LTWRAPPER_DEBUGPRINTF (("(main) found exe (before symlink chase) at : %s\n",
-			  tmp_pathspec));
-
-  actual_cwrapper_path = chase_symlinks (tmp_pathspec);
-  LTWRAPPER_DEBUGPRINTF (("(main) found exe (after symlink chase) at : %s\n",
-			  actual_cwrapper_path));
-  XFREE (tmp_pathspec);
-
-  actual_cwrapper_name = xstrdup( base_name (actual_cwrapper_path));
-  strendzap (actual_cwrapper_path, actual_cwrapper_name);
-
-  /* wrapper name transforms */
-  strendzap (actual_cwrapper_name, ".exe");
-  tmp_pathspec = lt_extend_str (actual_cwrapper_name, ".exe", 1);
-  XFREE (actual_cwrapper_name);
-  actual_cwrapper_name = tmp_pathspec;
-  tmp_pathspec = 0;
-
-  /* target_name transforms -- use actual target program name; might have lt- prefix */
-  target_name = xstrdup (base_name (TARGET_PROGRAM_NAME));
-  strendzap (target_name, ".exe");
-  tmp_pathspec = lt_extend_str (target_name, ".exe", 1);
-  XFREE (target_name);
-  target_name = tmp_pathspec;
-  tmp_pathspec = 0;
-
-  LTWRAPPER_DEBUGPRINTF (("(main) libtool target name: %s\n",
-			  target_name));
-EOF
-
-	    cat <<EOF
-  newargz[0] =
-    XMALLOC (char, (strlen (actual_cwrapper_path) +
-		    strlen ("$objdir") + 1 + strlen (actual_cwrapper_name) + 1));
-  strcpy (newargz[0], actual_cwrapper_path);
-  strcat (newargz[0], "$objdir");
-  strcat (newargz[0], "/");
-EOF
-
-	    cat <<"EOF"
-  /* stop here, and copy so we don't have to do this twice */
-  tmp_pathspec = xstrdup (newargz[0]);
-
-  /* do NOT want the lt- prefix here, so use actual_cwrapper_name */
-  strcat (newargz[0], actual_cwrapper_name);
-
-  /* DO want the lt- prefix here if it exists, so use target_name */
-  lt_argv_zero = lt_extend_str (tmp_pathspec, target_name, 1);
-  XFREE (tmp_pathspec);
-  tmp_pathspec = NULL;
-EOF
-
-	    case $host_os in
-	      mingw*)
-	    cat <<"EOF"
-  {
-    char* p;
-    while ((p = strchr (newargz[0], '\\')) != NULL)
-      {
-	*p = '/';
-      }
-    while ((p = strchr (lt_argv_zero, '\\')) != NULL)
-      {
-	*p = '/';
-      }
-  }
-EOF
-	    ;;
-	    esac
-
-	    cat <<"EOF"
-  XFREE (target_name);
-  XFREE (actual_cwrapper_path);
-  XFREE (actual_cwrapper_name);
-
-  lt_setenv ("BIN_SH", "xpg4"); /* for Tru64 */
-  lt_setenv ("DUALCASE", "1");  /* for MSK sh */
-  lt_update_lib_path (LIB_PATH_VARNAME, LIB_PATH_VALUE);
-  lt_update_exe_path (EXE_PATH_VARNAME, EXE_PATH_VALUE);
-
-  newargc=0;
-  for (i = 1; i < argc; i++)
-    {
-      if (strncmp (argv[i], env_set_opt, env_set_opt_len) == 0)
-        {
-          if (argv[i][env_set_opt_len] == '=')
-            {
-              const char *p = argv[i] + env_set_opt_len + 1;
-              lt_opt_process_env_set (p);
-            }
-          else if (argv[i][env_set_opt_len] == '\0' && i + 1 < argc)
-            {
-              lt_opt_process_env_set (argv[++i]); /* don't copy */
-            }
-          else
-            lt_fatal ("%s missing required argument", env_set_opt);
-          continue;
-        }
-      if (strncmp (argv[i], env_prepend_opt, env_prepend_opt_len) == 0)
-        {
-          if (argv[i][env_prepend_opt_len] == '=')
-            {
-              const char *p = argv[i] + env_prepend_opt_len + 1;
-              lt_opt_process_env_prepend (p);
-            }
-          else if (argv[i][env_prepend_opt_len] == '\0' && i + 1 < argc)
-            {
-              lt_opt_process_env_prepend (argv[++i]); /* don't copy */
-            }
-          else
-            lt_fatal ("%s missing required argument", env_prepend_opt);
-          continue;
-        }
-      if (strncmp (argv[i], env_append_opt, env_append_opt_len) == 0)
-        {
-          if (argv[i][env_append_opt_len] == '=')
-            {
-              const char *p = argv[i] + env_append_opt_len + 1;
-              lt_opt_process_env_append (p);
-            }
-          else if (argv[i][env_append_opt_len] == '\0' && i + 1 < argc)
-            {
-              lt_opt_process_env_append (argv[++i]); /* don't copy */
-            }
-          else
-            lt_fatal ("%s missing required argument", env_append_opt);
-          continue;
-        }
-      if (strncmp (argv[i], ltwrapper_option_prefix, opt_prefix_len) == 0)
-        {
-          /* however, if there is an option in the LTWRAPPER_OPTION_PREFIX
-             namespace, but it is not one of the ones we know about and
-             have already dealt with, above (inluding dump-script), then
-             report an error. Otherwise, targets might begin to believe
-             they are allowed to use options in the LTWRAPPER_OPTION_PREFIX
-             namespace. The first time any user complains about this, we'll
-             need to make LTWRAPPER_OPTION_PREFIX a configure-time option
-             or a configure.ac-settable value.
-           */
-          lt_fatal ("Unrecognized option in %s namespace: '%s'",
-                    ltwrapper_option_prefix, argv[i]);
-        }
-      /* otherwise ... */
-      newargz[++newargc] = xstrdup (argv[i]);
-    }
-  newargz[++newargc] = NULL;
-
-  LTWRAPPER_DEBUGPRINTF     (("(main) lt_argv_zero : %s\n", (lt_argv_zero ? lt_argv_zero : "<NULL>")));
-  for (i = 0; i < newargc; i++)
-    {
-      LTWRAPPER_DEBUGPRINTF (("(main) newargz[%d]   : %s\n", i, (newargz[i] ? newargz[i] : "<NULL>")));
-    }
-
-EOF
-
-	    case $host_os in
-	      mingw*)
-		cat <<"EOF"
-  /* execv doesn't actually work on mingw as expected on unix */
-  rval = _spawnv (_P_WAIT, lt_argv_zero, (const char * const *) newargz);
-  if (rval == -1)
-    {
-      /* failed to start process */
-      LTWRAPPER_DEBUGPRINTF (("(main) failed to launch target \"%s\": errno = %d\n", lt_argv_zero, errno));
-      return 127;
-    }
-  return rval;
-EOF
-		;;
-	      *)
-		cat <<"EOF"
-  execv (lt_argv_zero, newargz);
-  return rval; /* =127, but avoids unused variable warning */
-EOF
-		;;
-	    esac
-
-	    cat <<"EOF"
-}
-
-void *
-xmalloc (size_t num)
-{
-  void *p = (void *) malloc (num);
-  if (!p)
-    lt_fatal ("Memory exhausted");
-
-  return p;
-}
-
-char *
-xstrdup (const char *string)
-{
-  return string ? strcpy ((char *) xmalloc (strlen (string) + 1),
-			  string) : NULL;
-}
-
-const char *
-base_name (const char *name)
-{
-  const char *base;
-
-#if defined (HAVE_DOS_BASED_FILE_SYSTEM)
-  /* Skip over the disk name in MSDOS pathnames. */
-  if (isalpha ((unsigned char) name[0]) && name[1] == ':')
-    name += 2;
-#endif
-
-  for (base = name; *name; name++)
-    if (IS_DIR_SEPARATOR (*name))
-      base = name + 1;
-  return base;
-}
-
-int
-check_executable (const char *path)
-{
-  struct stat st;
-
-  LTWRAPPER_DEBUGPRINTF (("(check_executable)  : %s\n",
-			  path ? (*path ? path : "EMPTY!") : "NULL!"));
-  if ((!path) || (!*path))
-    return 0;
-
-  if ((stat (path, &st) >= 0)
-      && (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
-    return 1;
-  else
-    return 0;
-}
-
-int
-make_executable (const char *path)
-{
-  int rval = 0;
-  struct stat st;
-
-  LTWRAPPER_DEBUGPRINTF (("(make_executable)   : %s\n",
-			  path ? (*path ? path : "EMPTY!") : "NULL!"));
-  if ((!path) || (!*path))
-    return 0;
-
-  if (stat (path, &st) >= 0)
-    {
-      rval = chmod (path, st.st_mode | S_IXOTH | S_IXGRP | S_IXUSR);
-    }
-  return rval;
-}
-
-/* Searches for the full path of the wrapper.  Returns
-   newly allocated full path name if found, NULL otherwise
-   Does not chase symlinks, even on platforms that support them.
-*/
-char *
-find_executable (const char *wrapper)
-{
-  int has_slash = 0;
-  const char *p;
-  const char *p_next;
-  /* static buffer for getcwd */
-  char tmp[LT_PATHMAX + 1];
-  int tmp_len;
-  char *concat_name;
-
-  LTWRAPPER_DEBUGPRINTF (("(find_executable)   : %s\n",
-			  wrapper ? (*wrapper ? wrapper : "EMPTY!") : "NULL!"));
-
-  if ((wrapper == NULL) || (*wrapper == '\0'))
-    return NULL;
-
-  /* Absolute path? */
-#if defined (HAVE_DOS_BASED_FILE_SYSTEM)
-  if (isalpha ((unsigned char) wrapper[0]) && wrapper[1] == ':')
-    {
-      concat_name = xstrdup (wrapper);
-      if (check_executable (concat_name))
-	return concat_name;
-      XFREE (concat_name);
-    }
-  else
-    {
-#endif
-      if (IS_DIR_SEPARATOR (wrapper[0]))
-	{
-	  concat_name = xstrdup (wrapper);
-	  if (check_executable (concat_name))
-	    return concat_name;
-	  XFREE (concat_name);
-	}
-#if defined (HAVE_DOS_BASED_FILE_SYSTEM)
-    }
-#endif
-
-  for (p = wrapper; *p; p++)
-    if (*p == '/')
-      {
-	has_slash = 1;
-	break;
-      }
-  if (!has_slash)
-    {
-      /* no slashes; search PATH */
-      const char *path = getenv ("PATH");
-      if (path != NULL)
-	{
-	  for (p = path; *p; p = p_next)
-	    {
-	      const char *q;
-	      size_t p_len;
-	      for (q = p; *q; q++)
-		if (IS_PATH_SEPARATOR (*q))
-		  break;
-	      p_len = q - p;
-	      p_next = (*q == '\0' ? q : q + 1);
-	      if (p_len == 0)
-		{
-		  /* empty path: current directory */
-		  if (getcwd (tmp, LT_PATHMAX) == NULL)
-		    lt_fatal ("getcwd failed");
-		  tmp_len = strlen (tmp);
-		  concat_name =
-		    XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1);
-		  memcpy (concat_name, tmp, tmp_len);
-		  concat_name[tmp_len] = '/';
-		  strcpy (concat_name + tmp_len + 1, wrapper);
-		}
-	      else
-		{
-		  concat_name =
-		    XMALLOC (char, p_len + 1 + strlen (wrapper) + 1);
-		  memcpy (concat_name, p, p_len);
-		  concat_name[p_len] = '/';
-		  strcpy (concat_name + p_len + 1, wrapper);
-		}
-	      if (check_executable (concat_name))
-		return concat_name;
-	      XFREE (concat_name);
-	    }
-	}
-      /* not found in PATH; assume curdir */
-    }
-  /* Relative path | not found in path: prepend cwd */
-  if (getcwd (tmp, LT_PATHMAX) == NULL)
-    lt_fatal ("getcwd failed");
-  tmp_len = strlen (tmp);
-  concat_name = XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1);
-  memcpy (concat_name, tmp, tmp_len);
-  concat_name[tmp_len] = '/';
-  strcpy (concat_name + tmp_len + 1, wrapper);
-
-  if (check_executable (concat_name))
-    return concat_name;
-  XFREE (concat_name);
-  return NULL;
-}
-
-char *
-chase_symlinks (const char *pathspec)
-{
-#ifndef S_ISLNK
-  return xstrdup (pathspec);
-#else
-  char buf[LT_PATHMAX];
-  struct stat s;
-  char *tmp_pathspec = xstrdup (pathspec);
-  char *p;
-  int has_symlinks = 0;
-  while (strlen (tmp_pathspec) && !has_symlinks)
-    {
-      LTWRAPPER_DEBUGPRINTF (("checking path component for symlinks: %s\n",
-			      tmp_pathspec));
-      if (lstat (tmp_pathspec, &s) == 0)
-	{
-	  if (S_ISLNK (s.st_mode) != 0)
-	    {
-	      has_symlinks = 1;
-	      break;
-	    }
-
-	  /* search backwards for last DIR_SEPARATOR */
-	  p = tmp_pathspec + strlen (tmp_pathspec) - 1;
-	  while ((p > tmp_pathspec) && (!IS_DIR_SEPARATOR (*p)))
-	    p--;
-	  if ((p == tmp_pathspec) && (!IS_DIR_SEPARATOR (*p)))
-	    {
-	      /* no more DIR_SEPARATORS left */
-	      break;
-	    }
-	  *p = '\0';
-	}
-      else
-	{
-	  char *errstr = strerror (errno);
-	  lt_fatal ("Error accessing file %s (%s)", tmp_pathspec, errstr);
-	}
-    }
-  XFREE (tmp_pathspec);
-
-  if (!has_symlinks)
-    {
-      return xstrdup (pathspec);
-    }
-
-  tmp_pathspec = realpath (pathspec, buf);
-  if (tmp_pathspec == 0)
-    {
-      lt_fatal ("Could not follow symlinks for %s", pathspec);
-    }
-  return xstrdup (tmp_pathspec);
-#endif
-}
-
-char *
-strendzap (char *str, const char *pat)
-{
-  size_t len, patlen;
-
-  assert (str != NULL);
-  assert (pat != NULL);
-
-  len = strlen (str);
-  patlen = strlen (pat);
-
-  if (patlen <= len)
-    {
-      str += len - patlen;
-      if (strcmp (str, pat) == 0)
-	*str = '\0';
-    }
-  return str;
-}
-
-static void
-lt_error_core (int exit_status, const char *mode,
-	       const char *message, va_list ap)
-{
-  fprintf (stderr, "%s: %s: ", program_name, mode);
-  vfprintf (stderr, message, ap);
-  fprintf (stderr, ".\n");
-
-  if (exit_status >= 0)
-    exit (exit_status);
-}
-
-void
-lt_fatal (const char *message, ...)
-{
-  va_list ap;
-  va_start (ap, message);
-  lt_error_core (EXIT_FAILURE, "FATAL", message, ap);
-  va_end (ap);
-}
-
-void
-lt_setenv (const char *name, const char *value)
-{
-  LTWRAPPER_DEBUGPRINTF (("(lt_setenv) setting '%s' to '%s'\n",
-                          (name ? name : "<NULL>"),
-                          (value ? value : "<NULL>")));
-  {
-#ifdef HAVE_SETENV
-    /* always make a copy, for consistency with !HAVE_SETENV */
-    char *str = xstrdup (value);
-    setenv (name, str, 1);
-#else
-    int len = strlen (name) + 1 + strlen (value) + 1;
-    char *str = XMALLOC (char, len);
-    sprintf (str, "%s=%s", name, value);
-    if (putenv (str) != EXIT_SUCCESS)
-      {
-        XFREE (str);
-      }
-#endif
-  }
-}
-
-char *
-lt_extend_str (const char *orig_value, const char *add, int to_end)
-{
-  char *new_value;
-  if (orig_value && *orig_value)
-    {
-      int orig_value_len = strlen (orig_value);
-      int add_len = strlen (add);
-      new_value = XMALLOC (char, add_len + orig_value_len + 1);
-      if (to_end)
-        {
-          strcpy (new_value, orig_value);
-          strcpy (new_value + orig_value_len, add);
-        }
-      else
-        {
-          strcpy (new_value, add);
-          strcpy (new_value + add_len, orig_value);
-        }
-    }
-  else
-    {
-      new_value = xstrdup (add);
-    }
-  return new_value;
-}
-
-int
-lt_split_name_value (const char *arg, char** name, char** value)
-{
-  const char *p;
-  int len;
-  if (!arg || !*arg)
-    return 1;
-
-  p = strchr (arg, (int)'=');
-
-  if (!p)
-    return 1;
-
-  *value = xstrdup (++p);
-
-  len = strlen (arg) - strlen (*value);
-  *name = XMALLOC (char, len);
-  strncpy (*name, arg, len-1);
-  (*name)[len - 1] = '\0';
-
-  return 0;
-}
-
-void
-lt_opt_process_env_set (const char *arg)
-{
-  char *name = NULL;
-  char *value = NULL;
-
-  if (lt_split_name_value (arg, &name, &value) != 0)
-    {
-      XFREE (name);
-      XFREE (value);
-      lt_fatal ("bad argument for %s: '%s'", env_set_opt, arg);
-    }
-
-  lt_setenv (name, value);
-  XFREE (name);
-  XFREE (value);
-}
-
-void
-lt_opt_process_env_prepend (const char *arg)
-{
-  char *name = NULL;
-  char *value = NULL;
-  char *new_value = NULL;
-
-  if (lt_split_name_value (arg, &name, &value) != 0)
-    {
-      XFREE (name);
-      XFREE (value);
-      lt_fatal ("bad argument for %s: '%s'", env_prepend_opt, arg);
-    }
-
-  new_value = lt_extend_str (getenv (name), value, 0);
-  lt_setenv (name, new_value);
-  XFREE (new_value);
-  XFREE (name);
-  XFREE (value);
-}
-
-void
-lt_opt_process_env_append (const char *arg)
-{
-  char *name = NULL;
-  char *value = NULL;
-  char *new_value = NULL;
-
-  if (lt_split_name_value (arg, &name, &value) != 0)
-    {
-      XFREE (name);
-      XFREE (value);
-      lt_fatal ("bad argument for %s: '%s'", env_append_opt, arg);
-    }
-
-  new_value = lt_extend_str (getenv (name), value, 1);
-  lt_setenv (name, new_value);
-  XFREE (new_value);
-  XFREE (name);
-  XFREE (value);
-}
-
-void
-lt_update_exe_path (const char *name, const char *value)
-{
-  LTWRAPPER_DEBUGPRINTF (("(lt_update_exe_path) modifying '%s' by prepending '%s'\n",
-                          (name ? name : "<NULL>"),
-                          (value ? value : "<NULL>")));
-
-  if (name && *name && value && *value)
-    {
-      char *new_value = lt_extend_str (getenv (name), value, 0);
-      /* some systems can't cope with a ':'-terminated path #' */
-      int len = strlen (new_value);
-      while (((len = strlen (new_value)) > 0) && IS_PATH_SEPARATOR (new_value[len-1]))
-        {
-          new_value[len-1] = '\0';
-        }
-      lt_setenv (name, new_value);
-      XFREE (new_value);
-    }
-}
-
-void
-lt_update_lib_path (const char *name, const char *value)
-{
-  LTWRAPPER_DEBUGPRINTF (("(lt_update_lib_path) modifying '%s' by prepending '%s'\n",
-                          (name ? name : "<NULL>"),
-                          (value ? value : "<NULL>")));
-
-  if (name && *name && value && *value)
-    {
-      char *new_value = lt_extend_str (getenv (name), value, 0);
-      lt_setenv (name, new_value);
-      XFREE (new_value);
-    }
-}
-
-
-EOF
-}
-# end: func_emit_cwrapperexe_src
-
-# func_mode_link arg...
-func_mode_link ()
-{
-    $opt_debug
-    case $host in
-    *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
-      # It is impossible to link a dll without this setting, and
-      # we shouldn't force the makefile maintainer to figure out
-      # which system we are compiling for in order to pass an extra
-      # flag for every libtool invocation.
-      # allow_undefined=no
-
-      # FIXME: Unfortunately, there are problems with the above when trying
-      # to make a dll which has undefined symbols, in which case not
-      # even a static library is built.  For now, we need to specify
-      # -no-undefined on the libtool link line when we can be certain
-      # that all symbols are satisfied, otherwise we get a static library.
-      allow_undefined=yes
-      ;;
-    *)
-      allow_undefined=yes
-      ;;
-    esac
-    libtool_args=$nonopt
-    base_compile="$nonopt $@"
-    compile_command=$nonopt
-    finalize_command=$nonopt
-
-    compile_rpath=
-    finalize_rpath=
-    compile_shlibpath=
-    finalize_shlibpath=
-    convenience=
-    old_convenience=
-    deplibs=
-    old_deplibs=
-    compiler_flags=
-    linker_flags=
-    dllsearchpath=
-    lib_search_path=`pwd`
-    inst_prefix_dir=
-    new_inherited_linker_flags=
-
-    avoid_version=no
-    dlfiles=
-    dlprefiles=
-    dlself=no
-    export_dynamic=no
-    export_symbols=
-    export_symbols_regex=
-    generated=
-    libobjs=
-    ltlibs=
-    module=no
-    no_install=no
-    objs=
-    non_pic_objects=
-    precious_files_regex=
-    prefer_static_libs=no
-    preload=no
-    prev=
-    prevarg=
-    release=
-    rpath=
-    xrpath=
-    perm_rpath=
-    temp_rpath=
-    thread_safe=no
-    vinfo=
-    vinfo_number=no
-    weak_libs=
-    single_module="${wl}-single_module"
-    func_infer_tag $base_compile
-
-    # We need to know -static, to get the right output filenames.
-    for arg
-    do
-      case $arg in
-      -shared)
-	test "$build_libtool_libs" != yes && \
-	  func_fatal_configuration "can not build a shared library"
-	build_old_libs=no
-	break
-	;;
-      -all-static | -static | -static-libtool-libs)
-	case $arg in
-	-all-static)
-	  if test "$build_libtool_libs" = yes && test -z "$link_static_flag"; then
-	    func_warning "complete static linking is impossible in this configuration"
-	  fi
-	  if test -n "$link_static_flag"; then
-	    dlopen_self=$dlopen_self_static
-	  fi
-	  prefer_static_libs=yes
-	  ;;
-	-static)
-	  if test -z "$pic_flag" && test -n "$link_static_flag"; then
-	    dlopen_self=$dlopen_self_static
-	  fi
-	  prefer_static_libs=built
-	  ;;
-	-static-libtool-libs)
-	  if test -z "$pic_flag" && test -n "$link_static_flag"; then
-	    dlopen_self=$dlopen_self_static
-	  fi
-	  prefer_static_libs=yes
-	  ;;
-	esac
-	build_libtool_libs=no
-	build_old_libs=yes
-	break
-	;;
-      esac
-    done
-
-    # See if our shared archives depend on static archives.
-    test -n "$old_archive_from_new_cmds" && build_old_libs=yes
-
-    # Go through the arguments, transforming them on the way.
-    while test "$#" -gt 0; do
-      arg="$1"
-      shift
-      func_quote_for_eval "$arg"
-      qarg=$func_quote_for_eval_unquoted_result
-      func_append libtool_args " $func_quote_for_eval_result"
-
-      # If the previous option needs an argument, assign it.
-      if test -n "$prev"; then
-	case $prev in
-	output)
-	  func_append compile_command " @OUTPUT@"
-	  func_append finalize_command " @OUTPUT@"
-	  ;;
-	esac
-
-	case $prev in
-	dlfiles|dlprefiles)
-	  if test "$preload" = no; then
-	    # Add the symbol object into the linking commands.
-	    func_append compile_command " @SYMFILE@"
-	    func_append finalize_command " @SYMFILE@"
-	    preload=yes
-	  fi
-	  case $arg in
-	  *.la | *.lo) ;;  # We handle these cases below.
-	  force)
-	    if test "$dlself" = no; then
-	      dlself=needless
-	      export_dynamic=yes
-	    fi
-	    prev=
-	    continue
-	    ;;
-	  self)
-	    if test "$prev" = dlprefiles; then
-	      dlself=yes
-	    elif test "$prev" = dlfiles && test "$dlopen_self" != yes; then
-	      dlself=yes
-	    else
-	      dlself=needless
-	      export_dynamic=yes
-	    fi
-	    prev=
-	    continue
-	    ;;
-	  *)
-	    if test "$prev" = dlfiles; then
-	      dlfiles="$dlfiles $arg"
-	    else
-	      dlprefiles="$dlprefiles $arg"
-	    fi
-	    prev=
-	    continue
-	    ;;
-	  esac
-	  ;;
-	expsyms)
-	  export_symbols="$arg"
-	  test -f "$arg" \
-	    || func_fatal_error "symbol file \`$arg' does not exist"
-	  prev=
-	  continue
-	  ;;
-	expsyms_regex)
-	  export_symbols_regex="$arg"
-	  prev=
-	  continue
-	  ;;
-	framework)
-	  case $host in
-	    *-*-darwin*)
-	      case "$deplibs " in
-		*" $qarg.ltframework "*) ;;
-		*) deplibs="$deplibs $qarg.ltframework" # this is fixed later
-		   ;;
-	      esac
-	      ;;
-	  esac
-	  prev=
-	  continue
-	  ;;
-	inst_prefix)
-	  inst_prefix_dir="$arg"
-	  prev=
-	  continue
-	  ;;
-	objectlist)
-	  if test -f "$arg"; then
-	    save_arg=$arg
-	    moreargs=
-	    for fil in `cat "$save_arg"`
-	    do
-#	      moreargs="$moreargs $fil"
-	      arg=$fil
-	      # A libtool-controlled object.
-
-	      # Check to see that this really is a libtool object.
-	      if func_lalib_unsafe_p "$arg"; then
-		pic_object=
-		non_pic_object=
-
-		# Read the .lo file
-		func_source "$arg"
-
-		if test -z "$pic_object" ||
-		   test -z "$non_pic_object" ||
-		   test "$pic_object" = none &&
-		   test "$non_pic_object" = none; then
-		  func_fatal_error "cannot find name of object for \`$arg'"
-		fi
-
-		# Extract subdirectory from the argument.
-		func_dirname "$arg" "/" ""
-		xdir="$func_dirname_result"
-
-		if test "$pic_object" != none; then
-		  # Prepend the subdirectory the object is found in.
-		  pic_object="$xdir$pic_object"
-
-		  if test "$prev" = dlfiles; then
-		    if test "$build_libtool_libs" = yes && test "$dlopen_support" = yes; then
-		      dlfiles="$dlfiles $pic_object"
-		      prev=
-		      continue
-		    else
-		      # If libtool objects are unsupported, then we need to preload.
-		      prev=dlprefiles
-		    fi
-		  fi
-
-		  # CHECK ME:  I think I busted this.  -Ossama
-		  if test "$prev" = dlprefiles; then
-		    # Preload the old-style object.
-		    dlprefiles="$dlprefiles $pic_object"
-		    prev=
-		  fi
-
-		  # A PIC object.
-		  func_append libobjs " $pic_object"
-		  arg="$pic_object"
-		fi
-
-		# Non-PIC object.
-		if test "$non_pic_object" != none; then
-		  # Prepend the subdirectory the object is found in.
-		  non_pic_object="$xdir$non_pic_object"
-
-		  # A standard non-PIC object
-		  func_append non_pic_objects " $non_pic_object"
-		  if test -z "$pic_object" || test "$pic_object" = none ; then
-		    arg="$non_pic_object"
-		  fi
-		else
-		  # If the PIC object exists, use it instead.
-		  # $xdir was prepended to $pic_object above.
-		  non_pic_object="$pic_object"
-		  func_append non_pic_objects " $non_pic_object"
-		fi
-	      else
-		# Only an error if not doing a dry-run.
-		if $opt_dry_run; then
-		  # Extract subdirectory from the argument.
-		  func_dirname "$arg" "/" ""
-		  xdir="$func_dirname_result"
-
-		  func_lo2o "$arg"
-		  pic_object=$xdir$objdir/$func_lo2o_result
-		  non_pic_object=$xdir$func_lo2o_result
-		  func_append libobjs " $pic_object"
-		  func_append non_pic_objects " $non_pic_object"
-	        else
-		  func_fatal_error "\`$arg' is not a valid libtool object"
-		fi
-	      fi
-	    done
-	  else
-	    func_fatal_error "link input file \`$arg' does not exist"
-	  fi
-	  arg=$save_arg
-	  prev=
-	  continue
-	  ;;
-	precious_regex)
-	  precious_files_regex="$arg"
-	  prev=
-	  continue
-	  ;;
-	release)
-	  release="-$arg"
-	  prev=
-	  continue
-	  ;;
-	rpath | xrpath)
-	  # We need an absolute path.
-	  case $arg in
-	  [\\/]* | [A-Za-z]:[\\/]*) ;;
-	  *)
-	    func_fatal_error "only absolute run-paths are allowed"
-	    ;;
-	  esac
-	  if test "$prev" = rpath; then
-	    case "$rpath " in
-	    *" $arg "*) ;;
-	    *) rpath="$rpath $arg" ;;
-	    esac
-	  else
-	    case "$xrpath " in
-	    *" $arg "*) ;;
-	    *) xrpath="$xrpath $arg" ;;
-	    esac
-	  fi
-	  prev=
-	  continue
-	  ;;
-	shrext)
-	  shrext_cmds="$arg"
-	  prev=
-	  continue
-	  ;;
-	weak)
-	  weak_libs="$weak_libs $arg"
-	  prev=
-	  continue
-	  ;;
-	xcclinker)
-	  linker_flags="$linker_flags $qarg"
-	  compiler_flags="$compiler_flags $qarg"
-	  prev=
-	  func_append compile_command " $qarg"
-	  func_append finalize_command " $qarg"
-	  continue
-	  ;;
-	xcompiler)
-	  compiler_flags="$compiler_flags $qarg"
-	  prev=
-	  func_append compile_command " $qarg"
-	  func_append finalize_command " $qarg"
-	  continue
-	  ;;
-	xlinker)
-	  linker_flags="$linker_flags $qarg"
-	  compiler_flags="$compiler_flags $wl$qarg"
-	  prev=
-	  func_append compile_command " $wl$qarg"
-	  func_append finalize_command " $wl$qarg"
-	  continue
-	  ;;
-	*)
-	  eval "$prev=\"\$arg\""
-	  prev=
-	  continue
-	  ;;
-	esac
-      fi # test -n "$prev"
-
-      prevarg="$arg"
-
-      case $arg in
-      -all-static)
-	if test -n "$link_static_flag"; then
-	  # See comment for -static flag below, for more details.
-	  func_append compile_command " $link_static_flag"
-	  func_append finalize_command " $link_static_flag"
-	fi
-	continue
-	;;
-
-      -allow-undefined)
-	# FIXME: remove this flag sometime in the future.
-	func_fatal_error "\`-allow-undefined' must not be used because it is the default"
-	;;
-
-      -avoid-version)
-	avoid_version=yes
-	continue
-	;;
-
-      -dlopen)
-	prev=dlfiles
-	continue
-	;;
-
-      -dlpreopen)
-	prev=dlprefiles
-	continue
-	;;
-
-      -export-dynamic)
-	export_dynamic=yes
-	continue
-	;;
-
-      -export-symbols | -export-symbols-regex)
-	if test -n "$export_symbols" || test -n "$export_symbols_regex"; then
-	  func_fatal_error "more than one -exported-symbols argument is not allowed"
-	fi
-	if test "X$arg" = "X-export-symbols"; then
-	  prev=expsyms
-	else
-	  prev=expsyms_regex
-	fi
-	continue
-	;;
-
-      -framework)
-	prev=framework
-	continue
-	;;
-
-      -inst-prefix-dir)
-	prev=inst_prefix
-	continue
-	;;
-
-      # The native IRIX linker understands -LANG:*, -LIST:* and -LNO:*
-      # so, if we see these flags be careful not to treat them like -L
-      -L[A-Z][A-Z]*:*)
-	case $with_gcc/$host in
-	no/*-*-irix* | /*-*-irix*)
-	  func_append compile_command " $arg"
-	  func_append finalize_command " $arg"
-	  ;;
-	esac
-	continue
-	;;
-
-      -L*)
-	func_stripname '-L' '' "$arg"
-	dir=$func_stripname_result
-	if test -z "$dir"; then
-	  if test "$#" -gt 0; then
-	    func_fatal_error "require no space between \`-L' and \`$1'"
-	  else
-	    func_fatal_error "need path for \`-L' option"
-	  fi
-	fi
-	# We need an absolute path.
-	case $dir in
-	[\\/]* | [A-Za-z]:[\\/]*) ;;
-	*)
-	  absdir=`cd "$dir" && pwd`
-	  test -z "$absdir" && \
-	    func_fatal_error "cannot determine absolute directory name of \`$dir'"
-	  dir="$absdir"
-	  ;;
-	esac
-	case "$deplibs " in
-	*" -L$dir "*) ;;
-	*)
-	  deplibs="$deplibs -L$dir"
-	  lib_search_path="$lib_search_path $dir"
-	  ;;
-	esac
-	case $host in
-	*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
-	  testbindir=`$ECHO "X$dir" | $Xsed -e 's*/lib$*/bin*'`
-	  case :$dllsearchpath: in
-	  *":$dir:"*) ;;
-	  ::) dllsearchpath=$dir;;
-	  *) dllsearchpath="$dllsearchpath:$dir";;
-	  esac
-	  case :$dllsearchpath: in
-	  *":$testbindir:"*) ;;
-	  ::) dllsearchpath=$testbindir;;
-	  *) dllsearchpath="$dllsearchpath:$testbindir";;
-	  esac
-	  ;;
-	esac
-	continue
-	;;
-
-      -l*)
-	if test "X$arg" = "X-lc" || test "X$arg" = "X-lm"; then
-	  case $host in
-	  *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-beos* | *-cegcc*)
-	    # These systems don't actually have a C or math library (as such)
-	    continue
-	    ;;
-	  *-*-os2*)
-	    # These systems don't actually have a C library (as such)
-	    test "X$arg" = "X-lc" && continue
-	    ;;
-	  *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*)
-	    # Do not include libc due to us having libc/libc_r.
-	    test "X$arg" = "X-lc" && continue
-	    ;;
-	  *-*-rhapsody* | *-*-darwin1.[012])
-	    # Rhapsody C and math libraries are in the System framework
-	    deplibs="$deplibs System.ltframework"
-	    continue
-	    ;;
-	  *-*-sco3.2v5* | *-*-sco5v6*)
-	    # Causes problems with __ctype
-	    test "X$arg" = "X-lc" && continue
-	    ;;
-	  *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*)
-	    # Compiler inserts libc in the correct place for threads to work
-	    test "X$arg" = "X-lc" && continue
-	    ;;
-	  esac
-	elif test "X$arg" = "X-lc_r"; then
-	 case $host in
-	 *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*)
-	   # Do not include libc_r directly, use -pthread flag.
-	   continue
-	   ;;
-	 esac
-	fi
-	deplibs="$deplibs $arg"
-	continue
-	;;
-
-      -module)
-	module=yes
-	continue
-	;;
-
-      # Tru64 UNIX uses -model [arg] to determine the layout of C++
-      # classes, name mangling, and exception handling.
-      # Darwin uses the -arch flag to determine output architecture.
-      -model|-arch|-isysroot)
-	compiler_flags="$compiler_flags $arg"
-	func_append compile_command " $arg"
-	func_append finalize_command " $arg"
-	prev=xcompiler
-	continue
-	;;
-
-      -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe|-threads)
-	compiler_flags="$compiler_flags $arg"
-	func_append compile_command " $arg"
-	func_append finalize_command " $arg"
-	case "$new_inherited_linker_flags " in
-	    *" $arg "*) ;;
-	    * ) new_inherited_linker_flags="$new_inherited_linker_flags $arg" ;;
-	esac
-	continue
-	;;
-
-      -multi_module)
-	single_module="${wl}-multi_module"
-	continue
-	;;
-
-      -no-fast-install)
-	fast_install=no
-	continue
-	;;
-
-      -no-install)
-	case $host in
-	*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-darwin* | *-cegcc*)
-	  # The PATH hackery in wrapper scripts is required on Windows
-	  # and Darwin in order for the loader to find any dlls it needs.
-	  func_warning "\`-no-install' is ignored for $host"
-	  func_warning "assuming \`-no-fast-install' instead"
-	  fast_install=no
-	  ;;
-	*) no_install=yes ;;
-	esac
-	continue
-	;;
-
-      -no-undefined)
-	allow_undefined=no
-	continue
-	;;
-
-      -objectlist)
-	prev=objectlist
-	continue
-	;;
-
-      -o) prev=output ;;
-
-      -precious-files-regex)
-	prev=precious_regex
-	continue
-	;;
-
-      -release)
-	prev=release
-	continue
-	;;
-
-      -rpath)
-	prev=rpath
-	continue
-	;;
-
-      -R)
-	prev=xrpath
-	continue
-	;;
-
-      -R*)
-	func_stripname '-R' '' "$arg"
-	dir=$func_stripname_result
-	# We need an absolute path.
-	case $dir in
-	[\\/]* | [A-Za-z]:[\\/]*) ;;
-	*)
-	  func_fatal_error "only absolute run-paths are allowed"
-	  ;;
-	esac
-	case "$xrpath " in
-	*" $dir "*) ;;
-	*) xrpath="$xrpath $dir" ;;
-	esac
-	continue
-	;;
-
-      -shared)
-	# The effects of -shared are defined in a previous loop.
-	continue
-	;;
-
-      -shrext)
-	prev=shrext
-	continue
-	;;
-
-      -static | -static-libtool-libs)
-	# The effects of -static are defined in a previous loop.
-	# We used to do the same as -all-static on platforms that
-	# didn't have a PIC flag, but the assumption that the effects
-	# would be equivalent was wrong.  It would break on at least
-	# Digital Unix and AIX.
-	continue
-	;;
-
-      -thread-safe)
-	thread_safe=yes
-	continue
-	;;
-
-      -version-info)
-	prev=vinfo
-	continue
-	;;
-
-      -version-number)
-	prev=vinfo
-	vinfo_number=yes
-	continue
-	;;
-
-      -weak)
-        prev=weak
-	continue
-	;;
-
-      -Wc,*)
-	func_stripname '-Wc,' '' "$arg"
-	args=$func_stripname_result
-	arg=
-	save_ifs="$IFS"; IFS=','
-	for flag in $args; do
-	  IFS="$save_ifs"
-          func_quote_for_eval "$flag"
-	  arg="$arg $wl$func_quote_for_eval_result"
-	  compiler_flags="$compiler_flags $func_quote_for_eval_result"
-	done
-	IFS="$save_ifs"
-	func_stripname ' ' '' "$arg"
-	arg=$func_stripname_result
-	;;
-
-      -Wl,*)
-	func_stripname '-Wl,' '' "$arg"
-	args=$func_stripname_result
-	arg=
-	save_ifs="$IFS"; IFS=','
-	for flag in $args; do
-	  IFS="$save_ifs"
-          func_quote_for_eval "$flag"
-	  arg="$arg $wl$func_quote_for_eval_result"
-	  compiler_flags="$compiler_flags $wl$func_quote_for_eval_result"
-	  linker_flags="$linker_flags $func_quote_for_eval_result"
-	done
-	IFS="$save_ifs"
-	func_stripname ' ' '' "$arg"
-	arg=$func_stripname_result
-	;;
-
-      -Xcompiler)
-	prev=xcompiler
-	continue
-	;;
-
-      -Xlinker)
-	prev=xlinker
-	continue
-	;;
-
-      -XCClinker)
-	prev=xcclinker
-	continue
-	;;
-
-      # -msg_* for osf cc
-      -msg_*)
-	func_quote_for_eval "$arg"
-	arg="$func_quote_for_eval_result"
-	;;
-
-      # -64, -mips[0-9] enable 64-bit mode on the SGI compiler
-      # -r[0-9][0-9]* specifies the processor on the SGI compiler
-      # -xarch=*, -xtarget=* enable 64-bit mode on the Sun compiler
-      # +DA*, +DD* enable 64-bit mode on the HP compiler
-      # -q* pass through compiler args for the IBM compiler
-      # -m*, -t[45]*, -txscale* pass through architecture-specific
-      # compiler args for GCC
-      # -F/path gives path to uninstalled frameworks, gcc on darwin
-      # -p, -pg, --coverage, -fprofile-* pass through profiling flag for GCC
-      # @file GCC response files
-      -64|-mips[0-9]|-r[0-9][0-9]*|-xarch=*|-xtarget=*|+DA*|+DD*|-q*|-m*| \
-      -t[45]*|-txscale*|-p|-pg|--coverage|-fprofile-*|-F*|@*)
-        func_quote_for_eval "$arg"
-	arg="$func_quote_for_eval_result"
-        func_append compile_command " $arg"
-        func_append finalize_command " $arg"
-        compiler_flags="$compiler_flags $arg"
-        continue
-        ;;
-
-      # Some other compiler flag.
-      -* | +*)
-        func_quote_for_eval "$arg"
-	arg="$func_quote_for_eval_result"
-	;;
-
-      *.$objext)
-	# A standard object.
-	objs="$objs $arg"
-	;;
-
-      *.lo)
-	# A libtool-controlled object.
-
-	# Check to see that this really is a libtool object.
-	if func_lalib_unsafe_p "$arg"; then
-	  pic_object=
-	  non_pic_object=
-
-	  # Read the .lo file
-	  func_source "$arg"
-
-	  if test -z "$pic_object" ||
-	     test -z "$non_pic_object" ||
-	     test "$pic_object" = none &&
-	     test "$non_pic_object" = none; then
-	    func_fatal_error "cannot find name of object for \`$arg'"
-	  fi
-
-	  # Extract subdirectory from the argument.
-	  func_dirname "$arg" "/" ""
-	  xdir="$func_dirname_result"
-
-	  if test "$pic_object" != none; then
-	    # Prepend the subdirectory the object is found in.
-	    pic_object="$xdir$pic_object"
-
-	    if test "$prev" = dlfiles; then
-	      if test "$build_libtool_libs" = yes && test "$dlopen_support" = yes; then
-		dlfiles="$dlfiles $pic_object"
-		prev=
-		continue
-	      else
-		# If libtool objects are unsupported, then we need to preload.
-		prev=dlprefiles
-	      fi
-	    fi
-
-	    # CHECK ME:  I think I busted this.  -Ossama
-	    if test "$prev" = dlprefiles; then
-	      # Preload the old-style object.
-	      dlprefiles="$dlprefiles $pic_object"
-	      prev=
-	    fi
-
-	    # A PIC object.
-	    func_append libobjs " $pic_object"
-	    arg="$pic_object"
-	  fi
-
-	  # Non-PIC object.
-	  if test "$non_pic_object" != none; then
-	    # Prepend the subdirectory the object is found in.
-	    non_pic_object="$xdir$non_pic_object"
-
-	    # A standard non-PIC object
-	    func_append non_pic_objects " $non_pic_object"
-	    if test -z "$pic_object" || test "$pic_object" = none ; then
-	      arg="$non_pic_object"
-	    fi
-	  else
-	    # If the PIC object exists, use it instead.
-	    # $xdir was prepended to $pic_object above.
-	    non_pic_object="$pic_object"
-	    func_append non_pic_objects " $non_pic_object"
-	  fi
-	else
-	  # Only an error if not doing a dry-run.
-	  if $opt_dry_run; then
-	    # Extract subdirectory from the argument.
-	    func_dirname "$arg" "/" ""
-	    xdir="$func_dirname_result"
-
-	    func_lo2o "$arg"
-	    pic_object=$xdir$objdir/$func_lo2o_result
-	    non_pic_object=$xdir$func_lo2o_result
-	    func_append libobjs " $pic_object"
-	    func_append non_pic_objects " $non_pic_object"
-	  else
-	    func_fatal_error "\`$arg' is not a valid libtool object"
-	  fi
-	fi
-	;;
-
-      *.$libext)
-	# An archive.
-	deplibs="$deplibs $arg"
-	old_deplibs="$old_deplibs $arg"
-	continue
-	;;
-
-      *.la)
-	# A libtool-controlled library.
-
-	if test "$prev" = dlfiles; then
-	  # This library was specified with -dlopen.
-	  dlfiles="$dlfiles $arg"
-	  prev=
-	elif test "$prev" = dlprefiles; then
-	  # The library was specified with -dlpreopen.
-	  dlprefiles="$dlprefiles $arg"
-	  prev=
-	else
-	  deplibs="$deplibs $arg"
-	fi
-	continue
-	;;
-
-      # Some other compiler argument.
-      *)
-	# Unknown arguments in both finalize_command and compile_command need
-	# to be aesthetically quoted because they are evaled later.
-	func_quote_for_eval "$arg"
-	arg="$func_quote_for_eval_result"
-	;;
-      esac # arg
-
-      # Now actually substitute the argument into the commands.
-      if test -n "$arg"; then
-	func_append compile_command " $arg"
-	func_append finalize_command " $arg"
-      fi
-    done # argument parsing loop
-
-    test -n "$prev" && \
-      func_fatal_help "the \`$prevarg' option requires an argument"
-
-    if test "$export_dynamic" = yes && test -n "$export_dynamic_flag_spec"; then
-      eval arg=\"$export_dynamic_flag_spec\"
-      func_append compile_command " $arg"
-      func_append finalize_command " $arg"
-    fi
-
-    oldlibs=
-    # calculate the name of the file, without its directory
-    func_basename "$output"
-    outputname="$func_basename_result"
-    libobjs_save="$libobjs"
-
-    if test -n "$shlibpath_var"; then
-      # get the directories listed in $shlibpath_var
-      eval shlib_search_path=\`\$ECHO \"X\${$shlibpath_var}\" \| \$Xsed -e \'s/:/ /g\'\`
-    else
-      shlib_search_path=
-    fi
-    eval sys_lib_search_path=\"$sys_lib_search_path_spec\"
-    eval sys_lib_dlsearch_path=\"$sys_lib_dlsearch_path_spec\"
-
-    func_dirname "$output" "/" ""
-    output_objdir="$func_dirname_result$objdir"
-    # Create the object directory.
-    func_mkdir_p "$output_objdir"
-
-    # Determine the type of output
-    case $output in
-    "")
-      func_fatal_help "you must specify an output file"
-      ;;
-    *.$libext) linkmode=oldlib ;;
-    *.lo | *.$objext) linkmode=obj ;;
-    *.la) linkmode=lib ;;
-    *) linkmode=prog ;; # Anything else should be a program.
-    esac
-
-    specialdeplibs=
-
-    libs=
-    # Find all interdependent deplibs by searching for libraries
-    # that are linked more than once (e.g. -la -lb -la)
-    for deplib in $deplibs; do
-      if $opt_duplicate_deps ; then
-	case "$libs " in
-	*" $deplib "*) specialdeplibs="$specialdeplibs $deplib" ;;
-	esac
-      fi
-      libs="$libs $deplib"
-    done
-
-    if test "$linkmode" = lib; then
-      libs="$predeps $libs $compiler_lib_search_path $postdeps"
-
-      # Compute libraries that are listed more than once in $predeps
-      # $postdeps and mark them as special (i.e., whose duplicates are
-      # not to be eliminated).
-      pre_post_deps=
-      if $opt_duplicate_compiler_generated_deps; then
-	for pre_post_dep in $predeps $postdeps; do
-	  case "$pre_post_deps " in
-	  *" $pre_post_dep "*) specialdeplibs="$specialdeplibs $pre_post_deps" ;;
-	  esac
-	  pre_post_deps="$pre_post_deps $pre_post_dep"
-	done
-      fi
-      pre_post_deps=
-    fi
-
-    deplibs=
-    newdependency_libs=
-    newlib_search_path=
-    need_relink=no # whether we're linking any uninstalled libtool libraries
-    notinst_deplibs= # not-installed libtool libraries
-    notinst_path= # paths that contain not-installed libtool libraries
-
-    case $linkmode in
-    lib)
-	passes="conv dlpreopen link"
-	for file in $dlfiles $dlprefiles; do
-	  case $file in
-	  *.la) ;;
-	  *)
-	    func_fatal_help "libraries can \`-dlopen' only libtool libraries: $file"
-	    ;;
-	  esac
-	done
-	;;
-    prog)
-	compile_deplibs=
-	finalize_deplibs=
-	alldeplibs=no
-	newdlfiles=
-	newdlprefiles=
-	passes="conv scan dlopen dlpreopen link"
-	;;
-    *)  passes="conv"
-	;;
-    esac
-
-    for pass in $passes; do
-      # The preopen pass in lib mode reverses $deplibs; put it back here
-      # so that -L comes before libs that need it for instance...
-      if test "$linkmode,$pass" = "lib,link"; then
-	## FIXME: Find the place where the list is rebuilt in the wrong
-	##        order, and fix it there properly
-        tmp_deplibs=
-	for deplib in $deplibs; do
-	  tmp_deplibs="$deplib $tmp_deplibs"
-	done
-	deplibs="$tmp_deplibs"
-      fi
-
-      if test "$linkmode,$pass" = "lib,link" ||
-	 test "$linkmode,$pass" = "prog,scan"; then
-	libs="$deplibs"
-	deplibs=
-      fi
-      if test "$linkmode" = prog; then
-	case $pass in
-	dlopen) libs="$dlfiles" ;;
-	dlpreopen) libs="$dlprefiles" ;;
-	link)
-	  libs="$deplibs %DEPLIBS%"
-	  test "X$link_all_deplibs" != Xno && libs="$libs $dependency_libs"
-	  ;;
-	esac
-      fi
-      if test "$linkmode,$pass" = "lib,dlpreopen"; then
-	# Collect and forward deplibs of preopened libtool libs
-	for lib in $dlprefiles; do
-	  # Ignore non-libtool-libs
-	  dependency_libs=
-	  case $lib in
-	  *.la)	func_source "$lib" ;;
-	  esac
-
-	  # Collect preopened libtool deplibs, except any this library
-	  # has declared as weak libs
-	  for deplib in $dependency_libs; do
-            deplib_base=`$ECHO "X$deplib" | $Xsed -e "$basename"`
-	    case " $weak_libs " in
-	    *" $deplib_base "*) ;;
-	    *) deplibs="$deplibs $deplib" ;;
-	    esac
-	  done
-	done
-	libs="$dlprefiles"
-      fi
-      if test "$pass" = dlopen; then
-	# Collect dlpreopened libraries
-	save_deplibs="$deplibs"
-	deplibs=
-      fi
-
-      for deplib in $libs; do
-	lib=
-	found=no
-	case $deplib in
-	-mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe|-threads)
-	  if test "$linkmode,$pass" = "prog,link"; then
-	    compile_deplibs="$deplib $compile_deplibs"
-	    finalize_deplibs="$deplib $finalize_deplibs"
-	  else
-	    compiler_flags="$compiler_flags $deplib"
-	    if test "$linkmode" = lib ; then
-		case "$new_inherited_linker_flags " in
-		    *" $deplib "*) ;;
-		    * ) new_inherited_linker_flags="$new_inherited_linker_flags $deplib" ;;
-		esac
-	    fi
-	  fi
-	  continue
-	  ;;
-	-l*)
-	  if test "$linkmode" != lib && test "$linkmode" != prog; then
-	    func_warning "\`-l' is ignored for archives/objects"
-	    continue
-	  fi
-	  func_stripname '-l' '' "$deplib"
-	  name=$func_stripname_result
-	  if test "$linkmode" = lib; then
-	    searchdirs="$newlib_search_path $lib_search_path $compiler_lib_search_dirs $sys_lib_search_path $shlib_search_path"
-	  else
-	    searchdirs="$newlib_search_path $lib_search_path $sys_lib_search_path $shlib_search_path"
-	  fi
-	  for searchdir in $searchdirs; do
-	    for search_ext in .la $std_shrext .so .a; do
-	      # Search the libtool library
-	      lib="$searchdir/lib${name}${search_ext}"
-	      if test -f "$lib"; then
-		if test "$search_ext" = ".la"; then
-		  found=yes
-		else
-		  found=no
-		fi
-		break 2
-	      fi
-	    done
-	  done
-	  if test "$found" != yes; then
-	    # deplib doesn't seem to be a libtool library
-	    if test "$linkmode,$pass" = "prog,link"; then
-	      compile_deplibs="$deplib $compile_deplibs"
-	      finalize_deplibs="$deplib $finalize_deplibs"
-	    else
-	      deplibs="$deplib $deplibs"
-	      test "$linkmode" = lib && newdependency_libs="$deplib $newdependency_libs"
-	    fi
-	    continue
-	  else # deplib is a libtool library
-	    # If $allow_libtool_libs_with_static_runtimes && $deplib is a stdlib,
-	    # We need to do some special things here, and not later.
-	    if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
-	      case " $predeps $postdeps " in
-	      *" $deplib "*)
-		if func_lalib_p "$lib"; then
-		  library_names=
-		  old_library=
-		  func_source "$lib"
-		  for l in $old_library $library_names; do
-		    ll="$l"
-		  done
-		  if test "X$ll" = "X$old_library" ; then # only static version available
-		    found=no
-		    func_dirname "$lib" "" "."
-		    ladir="$func_dirname_result"
-		    lib=$ladir/$old_library
-		    if test "$linkmode,$pass" = "prog,link"; then
-		      compile_deplibs="$deplib $compile_deplibs"
-		      finalize_deplibs="$deplib $finalize_deplibs"
-		    else
-		      deplibs="$deplib $deplibs"
-		      test "$linkmode" = lib && newdependency_libs="$deplib $newdependency_libs"
-		    fi
-		    continue
-		  fi
-		fi
-		;;
-	      *) ;;
-	      esac
-	    fi
-	  fi
-	  ;; # -l
-	*.ltframework)
-	  if test "$linkmode,$pass" = "prog,link"; then
-	    compile_deplibs="$deplib $compile_deplibs"
-	    finalize_deplibs="$deplib $finalize_deplibs"
-	  else
-	    deplibs="$deplib $deplibs"
-	    if test "$linkmode" = lib ; then
-		case "$new_inherited_linker_flags " in
-		    *" $deplib "*) ;;
-		    * ) new_inherited_linker_flags="$new_inherited_linker_flags $deplib" ;;
-		esac
-	    fi
-	  fi
-	  continue
-	  ;;
-	-L*)
-	  case $linkmode in
-	  lib)
-	    deplibs="$deplib $deplibs"
-	    test "$pass" = conv && continue
-	    newdependency_libs="$deplib $newdependency_libs"
-	    func_stripname '-L' '' "$deplib"
-	    newlib_search_path="$newlib_search_path $func_stripname_result"
-	    ;;
-	  prog)
-	    if test "$pass" = conv; then
-	      deplibs="$deplib $deplibs"
-	      continue
-	    fi
-	    if test "$pass" = scan; then
-	      deplibs="$deplib $deplibs"
-	    else
-	      compile_deplibs="$deplib $compile_deplibs"
-	      finalize_deplibs="$deplib $finalize_deplibs"
-	    fi
-	    func_stripname '-L' '' "$deplib"
-	    newlib_search_path="$newlib_search_path $func_stripname_result"
-	    ;;
-	  *)
-	    func_warning "\`-L' is ignored for archives/objects"
-	    ;;
-	  esac # linkmode
-	  continue
-	  ;; # -L
-	-R*)
-	  if test "$pass" = link; then
-	    func_stripname '-R' '' "$deplib"
-	    dir=$func_stripname_result
-	    # Make sure the xrpath contains only unique directories.
-	    case "$xrpath " in
-	    *" $dir "*) ;;
-	    *) xrpath="$xrpath $dir" ;;
-	    esac
-	  fi
-	  deplibs="$deplib $deplibs"
-	  continue
-	  ;;
-	*.la) lib="$deplib" ;;
-	*.$libext)
-	  if test "$pass" = conv; then
-	    deplibs="$deplib $deplibs"
-	    continue
-	  fi
-	  case $linkmode in
-	  lib)
-	    # Linking convenience modules into shared libraries is allowed,
-	    # but linking other static libraries is non-portable.
-	    case " $dlpreconveniencelibs " in
-	    *" $deplib "*) ;;
-	    *)
-	      valid_a_lib=no
-	      case $deplibs_check_method in
-		match_pattern*)
-		  set dummy $deplibs_check_method; shift
-		  match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
-		  if eval "\$ECHO \"X$deplib\"" 2>/dev/null | $Xsed -e 10q \
-		    | $EGREP "$match_pattern_regex" > /dev/null; then
-		    valid_a_lib=yes
-		  fi
-		;;
-		pass_all)
-		  valid_a_lib=yes
-		;;
-	      esac
-	      if test "$valid_a_lib" != yes; then
-		$ECHO
-		$ECHO "*** Warning: Trying to link with static lib archive $deplib."
-		$ECHO "*** I have the capability to make that library automatically link in when"
-		$ECHO "*** you link to this library.  But I can only do this if you have a"
-		$ECHO "*** shared version of the library, which you do not appear to have"
-		$ECHO "*** because the file extensions .$libext of this argument makes me believe"
-		$ECHO "*** that it is just a static archive that I should not use here."
-	      else
-		$ECHO
-		$ECHO "*** Warning: Linking the shared library $output against the"
-		$ECHO "*** static library $deplib is not portable!"
-		deplibs="$deplib $deplibs"
-	      fi
-	      ;;
-	    esac
-	    continue
-	    ;;
-	  prog)
-	    if test "$pass" != link; then
-	      deplibs="$deplib $deplibs"
-	    else
-	      compile_deplibs="$deplib $compile_deplibs"
-	      finalize_deplibs="$deplib $finalize_deplibs"
-	    fi
-	    continue
-	    ;;
-	  esac # linkmode
-	  ;; # *.$libext
-	*.lo | *.$objext)
-	  if test "$pass" = conv; then
-	    deplibs="$deplib $deplibs"
-	  elif test "$linkmode" = prog; then
-	    if test "$pass" = dlpreopen || test "$dlopen_support" != yes || test "$build_libtool_libs" = no; then
-	      # If there is no dlopen support or we're linking statically,
-	      # we need to preload.
-	      newdlprefiles="$newdlprefiles $deplib"
-	      compile_deplibs="$deplib $compile_deplibs"
-	      finalize_deplibs="$deplib $finalize_deplibs"
-	    else
-	      newdlfiles="$newdlfiles $deplib"
-	    fi
-	  fi
-	  continue
-	  ;;
-	%DEPLIBS%)
-	  alldeplibs=yes
-	  continue
-	  ;;
-	esac # case $deplib
-
-	if test "$found" = yes || test -f "$lib"; then :
-	else
-	  func_fatal_error "cannot find the library \`$lib' or unhandled argument \`$deplib'"
-	fi
-
-	# Check to see that this really is a libtool archive.
-	func_lalib_unsafe_p "$lib" \
-	  || func_fatal_error "\`$lib' is not a valid libtool archive"
-
-	func_dirname "$lib" "" "."
-	ladir="$func_dirname_result"
-
-	dlname=
-	dlopen=
-	dlpreopen=
-	libdir=
-	library_names=
-	old_library=
-	inherited_linker_flags=
-	# If the library was installed with an old release of libtool,
-	# it will not redefine variables installed, or shouldnotlink
-	installed=yes
-	shouldnotlink=no
-	avoidtemprpath=
-
-
-	# Read the .la file
-	func_source "$lib"
-
-	# Convert "-framework foo" to "foo.ltframework"
-	if test -n "$inherited_linker_flags"; then
-	  tmp_inherited_linker_flags=`$ECHO "X$inherited_linker_flags" | $Xsed -e 's/-framework \([^ $]*\)/\1.ltframework/g'`
-	  for tmp_inherited_linker_flag in $tmp_inherited_linker_flags; do
-	    case " $new_inherited_linker_flags " in
-	      *" $tmp_inherited_linker_flag "*) ;;
-	      *) new_inherited_linker_flags="$new_inherited_linker_flags $tmp_inherited_linker_flag";;
-	    esac
-	  done
-	fi
-	dependency_libs=`$ECHO "X $dependency_libs" | $Xsed -e 's% \([^ $]*\).ltframework% -framework \1%g'`
-	if test "$linkmode,$pass" = "lib,link" ||
-	   test "$linkmode,$pass" = "prog,scan" ||
-	   { test "$linkmode" != prog && test "$linkmode" != lib; }; then
-	  test -n "$dlopen" && dlfiles="$dlfiles $dlopen"
-	  test -n "$dlpreopen" && dlprefiles="$dlprefiles $dlpreopen"
-	fi
-
-	if test "$pass" = conv; then
-	  # Only check for convenience libraries
-	  deplibs="$lib $deplibs"
-	  if test -z "$libdir"; then
-	    if test -z "$old_library"; then
-	      func_fatal_error "cannot find name of link library for \`$lib'"
-	    fi
-	    # It is a libtool convenience library, so add in its objects.
-	    convenience="$convenience $ladir/$objdir/$old_library"
-	    old_convenience="$old_convenience $ladir/$objdir/$old_library"
-	    tmp_libs=
-	    for deplib in $dependency_libs; do
-	      deplibs="$deplib $deplibs"
-	      if $opt_duplicate_deps ; then
-		case "$tmp_libs " in
-		*" $deplib "*) specialdeplibs="$specialdeplibs $deplib" ;;
-		esac
-	      fi
-	      tmp_libs="$tmp_libs $deplib"
-	    done
-	  elif test "$linkmode" != prog && test "$linkmode" != lib; then
-	    func_fatal_error "\`$lib' is not a convenience library"
-	  fi
-	  continue
-	fi # $pass = conv
-
-
-	# Get the name of the library we link against.
-	linklib=
-	for l in $old_library $library_names; do
-	  linklib="$l"
-	done
-	if test -z "$linklib"; then
-	  func_fatal_error "cannot find name of link library for \`$lib'"
-	fi
-
-	# This library was specified with -dlopen.
-	if test "$pass" = dlopen; then
-	  if test -z "$libdir"; then
-	    func_fatal_error "cannot -dlopen a convenience library: \`$lib'"
-	  fi
-	  if test -z "$dlname" ||
-	     test "$dlopen_support" != yes ||
-	     test "$build_libtool_libs" = no; then
-	    # If there is no dlname, no dlopen support or we're linking
-	    # statically, we need to preload.  We also need to preload any
-	    # dependent libraries so libltdl's deplib preloader doesn't
-	    # bomb out in the load deplibs phase.
-	    dlprefiles="$dlprefiles $lib $dependency_libs"
-	  else
-	    newdlfiles="$newdlfiles $lib"
-	  fi
-	  continue
-	fi # $pass = dlopen
-
-	# We need an absolute path.
-	case $ladir in
-	[\\/]* | [A-Za-z]:[\\/]*) abs_ladir="$ladir" ;;
-	*)
-	  abs_ladir=`cd "$ladir" && pwd`
-	  if test -z "$abs_ladir"; then
-	    func_warning "cannot determine absolute directory name of \`$ladir'"
-	    func_warning "passing it literally to the linker, although it might fail"
-	    abs_ladir="$ladir"
-	  fi
-	  ;;
-	esac
-	func_basename "$lib"
-	laname="$func_basename_result"
-
-	# Find the relevant object directory and library name.
-	if test "X$installed" = Xyes; then
-	  if test ! -f "$libdir/$linklib" && test -f "$abs_ladir/$linklib"; then
-	    func_warning "library \`$lib' was moved."
-	    dir="$ladir"
-	    absdir="$abs_ladir"
-	    libdir="$abs_ladir"
-	  else
-	    dir="$libdir"
-	    absdir="$libdir"
-	  fi
-	  test "X$hardcode_automatic" = Xyes && avoidtemprpath=yes
-	else
-	  if test ! -f "$ladir/$objdir/$linklib" && test -f "$abs_ladir/$linklib"; then
-	    dir="$ladir"
-	    absdir="$abs_ladir"
-	    # Remove this search path later
-	    notinst_path="$notinst_path $abs_ladir"
-	  else
-	    dir="$ladir/$objdir"
-	    absdir="$abs_ladir/$objdir"
-	    # Remove this search path later
-	    notinst_path="$notinst_path $abs_ladir"
-	  fi
-	fi # $installed = yes
-	func_stripname 'lib' '.la' "$laname"
-	name=$func_stripname_result
-
-	# This library was specified with -dlpreopen.
-	if test "$pass" = dlpreopen; then
-	  if test -z "$libdir" && test "$linkmode" = prog; then
-	    func_fatal_error "only libraries may -dlpreopen a convenience library: \`$lib'"
-	  fi
-	  # Prefer using a static library (so that no silly _DYNAMIC symbols
-	  # are required to link).
-	  if test -n "$old_library"; then
-	    newdlprefiles="$newdlprefiles $dir/$old_library"
-	    # Keep a list of preopened convenience libraries to check
-	    # that they are being used correctly in the link pass.
-	    test -z "$libdir" && \
-		dlpreconveniencelibs="$dlpreconveniencelibs $dir/$old_library"
-	  # Otherwise, use the dlname, so that lt_dlopen finds it.
-	  elif test -n "$dlname"; then
-	    newdlprefiles="$newdlprefiles $dir/$dlname"
-	  else
-	    newdlprefiles="$newdlprefiles $dir/$linklib"
-	  fi
-	fi # $pass = dlpreopen
-
-	if test -z "$libdir"; then
-	  # Link the convenience library
-	  if test "$linkmode" = lib; then
-	    deplibs="$dir/$old_library $deplibs"
-	  elif test "$linkmode,$pass" = "prog,link"; then
-	    compile_deplibs="$dir/$old_library $compile_deplibs"
-	    finalize_deplibs="$dir/$old_library $finalize_deplibs"
-	  else
-	    deplibs="$lib $deplibs" # used for prog,scan pass
-	  fi
-	  continue
-	fi
-
-
-	if test "$linkmode" = prog && test "$pass" != link; then
-	  newlib_search_path="$newlib_search_path $ladir"
-	  deplibs="$lib $deplibs"
-
-	  linkalldeplibs=no
-	  if test "$link_all_deplibs" != no || test -z "$library_names" ||
-	     test "$build_libtool_libs" = no; then
-	    linkalldeplibs=yes
-	  fi
-
-	  tmp_libs=
-	  for deplib in $dependency_libs; do
-	    case $deplib in
-	    -L*) func_stripname '-L' '' "$deplib"
-	         newlib_search_path="$newlib_search_path $func_stripname_result"
-		 ;;
-	    esac
-	    # Need to link against all dependency_libs?
-	    if test "$linkalldeplibs" = yes; then
-	      deplibs="$deplib $deplibs"
-	    else
-	      # Need to hardcode shared library paths
-	      # or/and link against static libraries
-	      newdependency_libs="$deplib $newdependency_libs"
-	    fi
-	    if $opt_duplicate_deps ; then
-	      case "$tmp_libs " in
-	      *" $deplib "*) specialdeplibs="$specialdeplibs $deplib" ;;
-	      esac
-	    fi
-	    tmp_libs="$tmp_libs $deplib"
-	  done # for deplib
-	  continue
-	fi # $linkmode = prog...
-
-	if test "$linkmode,$pass" = "prog,link"; then
-	  if test -n "$library_names" &&
-	     { { test "$prefer_static_libs" = no ||
-	         test "$prefer_static_libs,$installed" = "built,yes"; } ||
-	       test -z "$old_library"; }; then
-	    # We need to hardcode the library path
-	    if test -n "$shlibpath_var" && test -z "$avoidtemprpath" ; then
-	      # Make sure the rpath contains only unique directories.
-	      case "$temp_rpath:" in
-	      *"$absdir:"*) ;;
-	      *) temp_rpath="$temp_rpath$absdir:" ;;
-	      esac
-	    fi
-
-	    # Hardcode the library path.
-	    # Skip directories that are in the system default run-time
-	    # search path.
-	    case " $sys_lib_dlsearch_path " in
-	    *" $absdir "*) ;;
-	    *)
-	      case "$compile_rpath " in
-	      *" $absdir "*) ;;
-	      *) compile_rpath="$compile_rpath $absdir"
-	      esac
-	      ;;
-	    esac
-	    case " $sys_lib_dlsearch_path " in
-	    *" $libdir "*) ;;
-	    *)
-	      case "$finalize_rpath " in
-	      *" $libdir "*) ;;
-	      *) finalize_rpath="$finalize_rpath $libdir"
-	      esac
-	      ;;
-	    esac
-	  fi # $linkmode,$pass = prog,link...
-
-	  if test "$alldeplibs" = yes &&
-	     { test "$deplibs_check_method" = pass_all ||
-	       { test "$build_libtool_libs" = yes &&
-		 test -n "$library_names"; }; }; then
-	    # We only need to search for static libraries
-	    continue
-	  fi
-	fi
-
-	link_static=no # Whether the deplib will be linked statically
-	use_static_libs=$prefer_static_libs
-	if test "$use_static_libs" = built && test "$installed" = yes; then
-	  use_static_libs=no
-	fi
-	if test -n "$library_names" &&
-	   { test "$use_static_libs" = no || test -z "$old_library"; }; then
-	  case $host in
-	  *cygwin* | *mingw* | *cegcc*)
-	      # No point in relinking DLLs because paths are not encoded
-	      notinst_deplibs="$notinst_deplibs $lib"
-	      need_relink=no
-	    ;;
-	  *)
-	    if test "$installed" = no; then
-	      notinst_deplibs="$notinst_deplibs $lib"
-	      need_relink=yes
-	    fi
-	    ;;
-	  esac
-	  # This is a shared library
-
-	  # Warn about portability, can't link against -module's on some
-	  # systems (darwin).  Don't bleat about dlopened modules though!
-	  dlopenmodule=""
-	  for dlpremoduletest in $dlprefiles; do
-	    if test "X$dlpremoduletest" = "X$lib"; then
-	      dlopenmodule="$dlpremoduletest"
-	      break
-	    fi
-	  done
-	  if test -z "$dlopenmodule" && test "$shouldnotlink" = yes && test "$pass" = link; then
-	    $ECHO
-	    if test "$linkmode" = prog; then
-	      $ECHO "*** Warning: Linking the executable $output against the loadable module"
-	    else
-	      $ECHO "*** Warning: Linking the shared library $output against the loadable module"
-	    fi
-	    $ECHO "*** $linklib is not portable!"
-	  fi
-	  if test "$linkmode" = lib &&
-	     test "$hardcode_into_libs" = yes; then
-	    # Hardcode the library path.
-	    # Skip directories that are in the system default run-time
-	    # search path.
-	    case " $sys_lib_dlsearch_path " in
-	    *" $absdir "*) ;;
-	    *)
-	      case "$compile_rpath " in
-	      *" $absdir "*) ;;
-	      *) compile_rpath="$compile_rpath $absdir"
-	      esac
-	      ;;
-	    esac
-	    case " $sys_lib_dlsearch_path " in
-	    *" $libdir "*) ;;
-	    *)
-	      case "$finalize_rpath " in
-	      *" $libdir "*) ;;
-	      *) finalize_rpath="$finalize_rpath $libdir"
-	      esac
-	      ;;
-	    esac
-	  fi
-
-	  if test -n "$old_archive_from_expsyms_cmds"; then
-	    # figure out the soname
-	    set dummy $library_names
-	    shift
-	    realname="$1"
-	    shift
-	    libname=`eval "\\$ECHO \"$libname_spec\""`
-	    # use dlname if we got it. it's perfectly good, no?
-	    if test -n "$dlname"; then
-	      soname="$dlname"
-	    elif test -n "$soname_spec"; then
-	      # bleh windows
-	      case $host in
-	      *cygwin* | mingw* | *cegcc*)
-	        func_arith $current - $age
-		major=$func_arith_result
-		versuffix="-$major"
-		;;
-	      esac
-	      eval soname=\"$soname_spec\"
-	    else
-	      soname="$realname"
-	    fi
-
-	    # Make a new name for the extract_expsyms_cmds to use
-	    soroot="$soname"
-	    func_basename "$soroot"
-	    soname="$func_basename_result"
-	    func_stripname 'lib' '.dll' "$soname"
-	    newlib=libimp-$func_stripname_result.a
-
-	    # If the library has no export list, then create one now
-	    if test -f "$output_objdir/$soname-def"; then :
-	    else
-	      func_verbose "extracting exported symbol list from \`$soname'"
-	      func_execute_cmds "$extract_expsyms_cmds" 'exit $?'
-	    fi
-
-	    # Create $newlib
-	    if test -f "$output_objdir/$newlib"; then :; else
-	      func_verbose "generating import library for \`$soname'"
-	      func_execute_cmds "$old_archive_from_expsyms_cmds" 'exit $?'
-	    fi
-	    # make sure the library variables are pointing to the new library
-	    dir=$output_objdir
-	    linklib=$newlib
-	  fi # test -n "$old_archive_from_expsyms_cmds"
-
-	  if test "$linkmode" = prog || test "$mode" != relink; then
-	    add_shlibpath=
-	    add_dir=
-	    add=
-	    lib_linked=yes
-	    case $hardcode_action in
-	    immediate | unsupported)
-	      if test "$hardcode_direct" = no; then
-		add="$dir/$linklib"
-		case $host in
-		  *-*-sco3.2v5.0.[024]*) add_dir="-L$dir" ;;
-		  *-*-sysv4*uw2*) add_dir="-L$dir" ;;
-		  *-*-sysv5OpenUNIX* | *-*-sysv5UnixWare7.[01].[10]* | \
-		    *-*-unixware7*) add_dir="-L$dir" ;;
-		  *-*-darwin* )
-		    # if the lib is a (non-dlopened) module then we can not
-		    # link against it, someone is ignoring the earlier warnings
-		    if /usr/bin/file -L $add 2> /dev/null |
-			 $GREP ": [^:]* bundle" >/dev/null ; then
-		      if test "X$dlopenmodule" != "X$lib"; then
-			$ECHO "*** Warning: lib $linklib is a module, not a shared library"
-			if test -z "$old_library" ; then
-			  $ECHO
-			  $ECHO "*** And there doesn't seem to be a static archive available"
-			  $ECHO "*** The link will probably fail, sorry"
-			else
-			  add="$dir/$old_library"
-			fi
-		      elif test -n "$old_library"; then
-			add="$dir/$old_library"
-		      fi
-		    fi
-		esac
-	      elif test "$hardcode_minus_L" = no; then
-		case $host in
-		*-*-sunos*) add_shlibpath="$dir" ;;
-		esac
-		add_dir="-L$dir"
-		add="-l$name"
-	      elif test "$hardcode_shlibpath_var" = no; then
-		add_shlibpath="$dir"
-		add="-l$name"
-	      else
-		lib_linked=no
-	      fi
-	      ;;
-	    relink)
-	      if test "$hardcode_direct" = yes &&
-	         test "$hardcode_direct_absolute" = no; then
-		add="$dir/$linklib"
-	      elif test "$hardcode_minus_L" = yes; then
-		add_dir="-L$dir"
-		# Try looking first in the location we're being installed to.
-		if test -n "$inst_prefix_dir"; then
-		  case $libdir in
-		    [\\/]*)
-		      add_dir="$add_dir -L$inst_prefix_dir$libdir"
-		      ;;
-		  esac
-		fi
-		add="-l$name"
-	      elif test "$hardcode_shlibpath_var" = yes; then
-		add_shlibpath="$dir"
-		add="-l$name"
-	      else
-		lib_linked=no
-	      fi
-	      ;;
-	    *) lib_linked=no ;;
-	    esac
-
-	    if test "$lib_linked" != yes; then
-	      func_fatal_configuration "unsupported hardcode properties"
-	    fi
-
-	    if test -n "$add_shlibpath"; then
-	      case :$compile_shlibpath: in
-	      *":$add_shlibpath:"*) ;;
-	      *) compile_shlibpath="$compile_shlibpath$add_shlibpath:" ;;
-	      esac
-	    fi
-	    if test "$linkmode" = prog; then
-	      test -n "$add_dir" && compile_deplibs="$add_dir $compile_deplibs"
-	      test -n "$add" && compile_deplibs="$add $compile_deplibs"
-	    else
-	      test -n "$add_dir" && deplibs="$add_dir $deplibs"
-	      test -n "$add" && deplibs="$add $deplibs"
-	      if test "$hardcode_direct" != yes &&
-		 test "$hardcode_minus_L" != yes &&
-		 test "$hardcode_shlibpath_var" = yes; then
-		case :$finalize_shlibpath: in
-		*":$libdir:"*) ;;
-		*) finalize_shlibpath="$finalize_shlibpath$libdir:" ;;
-		esac
-	      fi
-	    fi
-	  fi
-
-	  if test "$linkmode" = prog || test "$mode" = relink; then
-	    add_shlibpath=
-	    add_dir=
-	    add=
-	    # Finalize command for both is simple: just hardcode it.
-	    if test "$hardcode_direct" = yes &&
-	       test "$hardcode_direct_absolute" = no; then
-	      add="$libdir/$linklib"
-	    elif test "$hardcode_minus_L" = yes; then
-	      add_dir="-L$libdir"
-	      add="-l$name"
-	    elif test "$hardcode_shlibpath_var" = yes; then
-	      case :$finalize_shlibpath: in
-	      *":$libdir:"*) ;;
-	      *) finalize_shlibpath="$finalize_shlibpath$libdir:" ;;
-	      esac
-	      add="-l$name"
-	    elif test "$hardcode_automatic" = yes; then
-	      if test -n "$inst_prefix_dir" &&
-		 test -f "$inst_prefix_dir$libdir/$linklib" ; then
-		add="$inst_prefix_dir$libdir/$linklib"
-	      else
-		add="$libdir/$linklib"
-	      fi
-	    else
-	      # We cannot seem to hardcode it, guess we'll fake it.
-	      add_dir="-L$libdir"
-	      # Try looking first in the location we're being installed to.
-	      if test -n "$inst_prefix_dir"; then
-		case $libdir in
-		  [\\/]*)
-		    add_dir="$add_dir -L$inst_prefix_dir$libdir"
-		    ;;
-		esac
-	      fi
-	      add="-l$name"
-	    fi
-
-	    if test "$linkmode" = prog; then
-	      test -n "$add_dir" && finalize_deplibs="$add_dir $finalize_deplibs"
-	      test -n "$add" && finalize_deplibs="$add $finalize_deplibs"
-	    else
-	      test -n "$add_dir" && deplibs="$add_dir $deplibs"
-	      test -n "$add" && deplibs="$add $deplibs"
-	    fi
-	  fi
-	elif test "$linkmode" = prog; then
-	  # Here we assume that one of hardcode_direct or hardcode_minus_L
-	  # is not unsupported.  This is valid on all known static and
-	  # shared platforms.
-	  if test "$hardcode_direct" != unsupported; then
-	    test -n "$old_library" && linklib="$old_library"
-	    compile_deplibs="$dir/$linklib $compile_deplibs"
-	    finalize_deplibs="$dir/$linklib $finalize_deplibs"
-	  else
-	    compile_deplibs="-l$name -L$dir $compile_deplibs"
-	    finalize_deplibs="-l$name -L$dir $finalize_deplibs"
-	  fi
-	elif test "$build_libtool_libs" = yes; then
-	  # Not a shared library
-	  if test "$deplibs_check_method" != pass_all; then
-	    # We're trying link a shared library against a static one
-	    # but the system doesn't support it.
-
-	    # Just print a warning and add the library to dependency_libs so
-	    # that the program can be linked against the static library.
-	    $ECHO
-	    $ECHO "*** Warning: This system can not link to static lib archive $lib."
-	    $ECHO "*** I have the capability to make that library automatically link in when"
-	    $ECHO "*** you link to this library.  But I can only do this if you have a"
-	    $ECHO "*** shared version of the library, which you do not appear to have."
-	    if test "$module" = yes; then
-	      $ECHO "*** But as you try to build a module library, libtool will still create "
-	      $ECHO "*** a static module, that should work as long as the dlopening application"
-	      $ECHO "*** is linked with the -dlopen flag to resolve symbols at runtime."
-	      if test -z "$global_symbol_pipe"; then
-		$ECHO
-		$ECHO "*** However, this would only work if libtool was able to extract symbol"
-		$ECHO "*** lists from a program, using \`nm' or equivalent, but libtool could"
-		$ECHO "*** not find such a program.  So, this module is probably useless."
-		$ECHO "*** \`nm' from GNU binutils and a full rebuild may help."
-	      fi
-	      if test "$build_old_libs" = no; then
-		build_libtool_libs=module
-		build_old_libs=yes
-	      else
-		build_libtool_libs=no
-	      fi
-	    fi
-	  else
-	    deplibs="$dir/$old_library $deplibs"
-	    link_static=yes
-	  fi
-	fi # link shared/static library?
-
-	if test "$linkmode" = lib; then
-	  if test -n "$dependency_libs" &&
-	     { test "$hardcode_into_libs" != yes ||
-	       test "$build_old_libs" = yes ||
-	       test "$link_static" = yes; }; then
-	    # Extract -R from dependency_libs
-	    temp_deplibs=
-	    for libdir in $dependency_libs; do
-	      case $libdir in
-	      -R*) func_stripname '-R' '' "$libdir"
-	           temp_xrpath=$func_stripname_result
-		   case " $xrpath " in
-		   *" $temp_xrpath "*) ;;
-		   *) xrpath="$xrpath $temp_xrpath";;
-		   esac;;
-	      *) temp_deplibs="$temp_deplibs $libdir";;
-	      esac
-	    done
-	    dependency_libs="$temp_deplibs"
-	  fi
-
-	  newlib_search_path="$newlib_search_path $absdir"
-	  # Link against this library
-	  test "$link_static" = no && newdependency_libs="$abs_ladir/$laname $newdependency_libs"
-	  # ... and its dependency_libs
-	  tmp_libs=
-	  for deplib in $dependency_libs; do
-	    newdependency_libs="$deplib $newdependency_libs"
-	    if $opt_duplicate_deps ; then
-	      case "$tmp_libs " in
-	      *" $deplib "*) specialdeplibs="$specialdeplibs $deplib" ;;
-	      esac
-	    fi
-	    tmp_libs="$tmp_libs $deplib"
-	  done
-
-	  if test "$link_all_deplibs" != no; then
-	    # Add the search paths of all dependency libraries
-	    for deplib in $dependency_libs; do
-	      path=
-	      case $deplib in
-	      -L*) path="$deplib" ;;
-	      *.la)
-	        func_dirname "$deplib" "" "."
-		dir="$func_dirname_result"
-		# We need an absolute path.
-		case $dir in
-		[\\/]* | [A-Za-z]:[\\/]*) absdir="$dir" ;;
-		*)
-		  absdir=`cd "$dir" && pwd`
-		  if test -z "$absdir"; then
-		    func_warning "cannot determine absolute directory name of \`$dir'"
-		    absdir="$dir"
-		  fi
-		  ;;
-		esac
-		if $GREP "^installed=no" $deplib > /dev/null; then
-		case $host in
-		*-*-darwin*)
-		  depdepl=
-		  eval deplibrary_names=`${SED} -n -e 's/^library_names=\(.*\)$/\1/p' $deplib`
-		  if test -n "$deplibrary_names" ; then
-		    for tmp in $deplibrary_names ; do
-		      depdepl=$tmp
-		    done
-		    if test -f "$absdir/$objdir/$depdepl" ; then
-		      depdepl="$absdir/$objdir/$depdepl"
-		      darwin_install_name=`${OTOOL} -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'`
-                      if test -z "$darwin_install_name"; then
-                          darwin_install_name=`${OTOOL64} -L $depdepl  | awk '{if (NR == 2) {print $1;exit}}'`
-                      fi
-		      compiler_flags="$compiler_flags ${wl}-dylib_file ${wl}${darwin_install_name}:${depdepl}"
-		      linker_flags="$linker_flags -dylib_file ${darwin_install_name}:${depdepl}"
-		      path=
-		    fi
-		  fi
-		  ;;
-		*)
-		  path="-L$absdir/$objdir"
-		  ;;
-		esac
-		else
-		  eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $deplib`
-		  test -z "$libdir" && \
-		    func_fatal_error "\`$deplib' is not a valid libtool archive"
-		  test "$absdir" != "$libdir" && \
-		    func_warning "\`$deplib' seems to be moved"
-
-		  path="-L$absdir"
-		fi
-		;;
-	      esac
-	      case " $deplibs " in
-	      *" $path "*) ;;
-	      *) deplibs="$path $deplibs" ;;
-	      esac
-	    done
-	  fi # link_all_deplibs != no
-	fi # linkmode = lib
-      done # for deplib in $libs
-      if test "$pass" = link; then
-	if test "$linkmode" = "prog"; then
-	  compile_deplibs="$new_inherited_linker_flags $compile_deplibs"
-	  finalize_deplibs="$new_inherited_linker_flags $finalize_deplibs"
-	else
-	  compiler_flags="$compiler_flags "`$ECHO "X $new_inherited_linker_flags" | $Xsed -e 's% \([^ $]*\).ltframework% -framework \1%g'`
-	fi
-      fi
-      dependency_libs="$newdependency_libs"
-      if test "$pass" = dlpreopen; then
-	# Link the dlpreopened libraries before other libraries
-	for deplib in $save_deplibs; do
-	  deplibs="$deplib $deplibs"
-	done
-      fi
-      if test "$pass" != dlopen; then
-	if test "$pass" != conv; then
-	  # Make sure lib_search_path contains only unique directories.
-	  lib_search_path=
-	  for dir in $newlib_search_path; do
-	    case "$lib_search_path " in
-	    *" $dir "*) ;;
-	    *) lib_search_path="$lib_search_path $dir" ;;
-	    esac
-	  done
-	  newlib_search_path=
-	fi
-
-	if test "$linkmode,$pass" != "prog,link"; then
-	  vars="deplibs"
-	else
-	  vars="compile_deplibs finalize_deplibs"
-	fi
-	for var in $vars dependency_libs; do
-	  # Add libraries to $var in reverse order
-	  eval tmp_libs=\"\$$var\"
-	  new_libs=
-	  for deplib in $tmp_libs; do
-	    # FIXME: Pedantically, this is the right thing to do, so
-	    #        that some nasty dependency loop isn't accidentally
-	    #        broken:
-	    #new_libs="$deplib $new_libs"
-	    # Pragmatically, this seems to cause very few problems in
-	    # practice:
-	    case $deplib in
-	    -L*) new_libs="$deplib $new_libs" ;;
-	    -R*) ;;
-	    *)
-	      # And here is the reason: when a library appears more
-	      # than once as an explicit dependence of a library, or
-	      # is implicitly linked in more than once by the
-	      # compiler, it is considered special, and multiple
-	      # occurrences thereof are not removed.  Compare this
-	      # with having the same library being listed as a
-	      # dependency of multiple other libraries: in this case,
-	      # we know (pedantically, we assume) the library does not
-	      # need to be listed more than once, so we keep only the
-	      # last copy.  This is not always right, but it is rare
-	      # enough that we require users that really mean to play
-	      # such unportable linking tricks to link the library
-	      # using -Wl,-lname, so that libtool does not consider it
-	      # for duplicate removal.
-	      case " $specialdeplibs " in
-	      *" $deplib "*) new_libs="$deplib $new_libs" ;;
-	      *)
-		case " $new_libs " in
-		*" $deplib "*) ;;
-		*) new_libs="$deplib $new_libs" ;;
-		esac
-		;;
-	      esac
-	      ;;
-	    esac
-	  done
-	  tmp_libs=
-	  for deplib in $new_libs; do
-	    case $deplib in
-	    -L*)
-	      case " $tmp_libs " in
-	      *" $deplib "*) ;;
-	      *) tmp_libs="$tmp_libs $deplib" ;;
-	      esac
-	      ;;
-	    *) tmp_libs="$tmp_libs $deplib" ;;
-	    esac
-	  done
-	  eval $var=\"$tmp_libs\"
-	done # for var
-      fi
-      # Last step: remove runtime libs from dependency_libs
-      # (they stay in deplibs)
-      tmp_libs=
-      for i in $dependency_libs ; do
-	case " $predeps $postdeps $compiler_lib_search_path " in
-	*" $i "*)
-	  i=""
-	  ;;
-	esac
-	if test -n "$i" ; then
-	  tmp_libs="$tmp_libs $i"
-	fi
-      done
-      dependency_libs=$tmp_libs
-    done # for pass
-    if test "$linkmode" = prog; then
-      dlfiles="$newdlfiles"
-    fi
-    if test "$linkmode" = prog || test "$linkmode" = lib; then
-      dlprefiles="$newdlprefiles"
-    fi
-
-    case $linkmode in
-    oldlib)
-      if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then
-	func_warning "\`-dlopen' is ignored for archives"
-      fi
-
-      case " $deplibs" in
-      *\ -l* | *\ -L*)
-	func_warning "\`-l' and \`-L' are ignored for archives" ;;
-      esac
-
-      test -n "$rpath" && \
-	func_warning "\`-rpath' is ignored for archives"
-
-      test -n "$xrpath" && \
-	func_warning "\`-R' is ignored for archives"
-
-      test -n "$vinfo" && \
-	func_warning "\`-version-info/-version-number' is ignored for archives"
-
-      test -n "$release" && \
-	func_warning "\`-release' is ignored for archives"
-
-      test -n "$export_symbols$export_symbols_regex" && \
-	func_warning "\`-export-symbols' is ignored for archives"
-
-      # Now set the variables for building old libraries.
-      build_libtool_libs=no
-      oldlibs="$output"
-      objs="$objs$old_deplibs"
-      ;;
-
-    lib)
-      # Make sure we only generate libraries of the form `libNAME.la'.
-      case $outputname in
-      lib*)
-	func_stripname 'lib' '.la' "$outputname"
-	name=$func_stripname_result
-	eval shared_ext=\"$shrext_cmds\"
-	eval libname=\"$libname_spec\"
-	;;
-      *)
-	test "$module" = no && \
-	  func_fatal_help "libtool library \`$output' must begin with \`lib'"
-
-	if test "$need_lib_prefix" != no; then
-	  # Add the "lib" prefix for modules if required
-	  func_stripname '' '.la' "$outputname"
-	  name=$func_stripname_result
-	  eval shared_ext=\"$shrext_cmds\"
-	  eval libname=\"$libname_spec\"
-	else
-	  func_stripname '' '.la' "$outputname"
-	  libname=$func_stripname_result
-	fi
-	;;
-      esac
-
-      if test -n "$objs"; then
-	if test "$deplibs_check_method" != pass_all; then
-	  func_fatal_error "cannot build libtool library \`$output' from non-libtool objects on this host:$objs"
-	else
-	  $ECHO
-	  $ECHO "*** Warning: Linking the shared library $output against the non-libtool"
-	  $ECHO "*** objects $objs is not portable!"
-	  libobjs="$libobjs $objs"
-	fi
-      fi
-
-      test "$dlself" != no && \
-	func_warning "\`-dlopen self' is ignored for libtool libraries"
-
-      set dummy $rpath
-      shift
-      test "$#" -gt 1 && \
-	func_warning "ignoring multiple \`-rpath's for a libtool library"
-
-      install_libdir="$1"
-
-      oldlibs=
-      if test -z "$rpath"; then
-	if test "$build_libtool_libs" = yes; then
-	  # Building a libtool convenience library.
-	  # Some compilers have problems with a `.al' extension so
-	  # convenience libraries should have the same extension an
-	  # archive normally would.
-	  oldlibs="$output_objdir/$libname.$libext $oldlibs"
-	  build_libtool_libs=convenience
-	  build_old_libs=yes
-	fi
-
-	test -n "$vinfo" && \
-	  func_warning "\`-version-info/-version-number' is ignored for convenience libraries"
-
-	test -n "$release" && \
-	  func_warning "\`-release' is ignored for convenience libraries"
-      else
-
-	# Parse the version information argument.
-	save_ifs="$IFS"; IFS=':'
-	set dummy $vinfo 0 0 0
-	shift
-	IFS="$save_ifs"
-
-	test -n "$7" && \
-	  func_fatal_help "too many parameters to \`-version-info'"
-
-	# convert absolute version numbers to libtool ages
-	# this retains compatibility with .la files and attempts
-	# to make the code below a bit more comprehensible
-
-	case $vinfo_number in
-	yes)
-	  number_major="$1"
-	  number_minor="$2"
-	  number_revision="$3"
-	  #
-	  # There are really only two kinds -- those that
-	  # use the current revision as the major version
-	  # and those that subtract age and use age as
-	  # a minor version.  But, then there is irix
-	  # which has an extra 1 added just for fun
-	  #
-	  case $version_type in
-	  darwin|linux|osf|windows|none)
-	    func_arith $number_major + $number_minor
-	    current=$func_arith_result
-	    age="$number_minor"
-	    revision="$number_revision"
-	    ;;
-	  freebsd-aout|freebsd-elf|sunos)
-	    current="$number_major"
-	    revision="$number_minor"
-	    age="0"
-	    ;;
-	  irix|nonstopux)
-	    func_arith $number_major + $number_minor
-	    current=$func_arith_result
-	    age="$number_minor"
-	    revision="$number_minor"
-	    lt_irix_increment=no
-	    ;;
-	  *)
-	    func_fatal_configuration "$modename: unknown library version type \`$version_type'"
-	    ;;
-	  esac
-	  ;;
-	no)
-	  current="$1"
-	  revision="$2"
-	  age="$3"
-	  ;;
-	esac
-
-	# Check that each of the things are valid numbers.
-	case $current in
-	0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
-	*)
-	  func_error "CURRENT \`$current' must be a nonnegative integer"
-	  func_fatal_error "\`$vinfo' is not valid version information"
-	  ;;
-	esac
-
-	case $revision in
-	0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
-	*)
-	  func_error "REVISION \`$revision' must be a nonnegative integer"
-	  func_fatal_error "\`$vinfo' is not valid version information"
-	  ;;
-	esac
-
-	case $age in
-	0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
-	*)
-	  func_error "AGE \`$age' must be a nonnegative integer"
-	  func_fatal_error "\`$vinfo' is not valid version information"
-	  ;;
-	esac
-
-	if test "$age" -gt "$current"; then
-	  func_error "AGE \`$age' is greater than the current interface number \`$current'"
-	  func_fatal_error "\`$vinfo' is not valid version information"
-	fi
-
-	# Calculate the version variables.
-	major=
-	versuffix=
-	verstring=
-	case $version_type in
-	none) ;;
-
-	darwin)
-	  # Like Linux, but with the current version available in
-	  # verstring for coding it into the library header
-	  func_arith $current - $age
-	  major=.$func_arith_result
-	  versuffix="$major.$age.$revision"
-	  # Darwin ld doesn't like 0 for these options...
-	  func_arith $current + 1
-	  minor_current=$func_arith_result
-	  xlcverstring="${wl}-compatibility_version ${wl}$minor_current ${wl}-current_version ${wl}$minor_current.$revision"
-	  verstring="-compatibility_version $minor_current -current_version $minor_current.$revision"
-	  ;;
-
-	freebsd-aout)
-	  major=".$current"
-	  versuffix=".$current.$revision";
-	  ;;
-
-	freebsd-elf)
-	  major=".$current"
-	  versuffix=".$current"
-	  ;;
-
-	irix | nonstopux)
-	  if test "X$lt_irix_increment" = "Xno"; then
-	    func_arith $current - $age
-	  else
-	    func_arith $current - $age + 1
-	  fi
-	  major=$func_arith_result
-
-	  case $version_type in
-	    nonstopux) verstring_prefix=nonstopux ;;
-	    *)         verstring_prefix=sgi ;;
-	  esac
-	  verstring="$verstring_prefix$major.$revision"
-
-	  # Add in all the interfaces that we are compatible with.
-	  loop=$revision
-	  while test "$loop" -ne 0; do
-	    func_arith $revision - $loop
-	    iface=$func_arith_result
-	    func_arith $loop - 1
-	    loop=$func_arith_result
-	    verstring="$verstring_prefix$major.$iface:$verstring"
-	  done
-
-	  # Before this point, $major must not contain `.'.
-	  major=.$major
-	  versuffix="$major.$revision"
-	  ;;
-
-	linux)
-	  func_arith $current - $age
-	  major=.$func_arith_result
-	  versuffix="$major.$age.$revision"
-	  ;;
-
-	osf)
-	  func_arith $current - $age
-	  major=.$func_arith_result
-	  versuffix=".$current.$age.$revision"
-	  verstring="$current.$age.$revision"
-
-	  # Add in all the interfaces that we are compatible with.
-	  loop=$age
-	  while test "$loop" -ne 0; do
-	    func_arith $current - $loop
-	    iface=$func_arith_result
-	    func_arith $loop - 1
-	    loop=$func_arith_result
-	    verstring="$verstring:${iface}.0"
-	  done
-
-	  # Make executables depend on our current version.
-	  verstring="$verstring:${current}.0"
-	  ;;
-
-	qnx)
-	  major=".$current"
-	  versuffix=".$current"
-	  ;;
-
-	sunos)
-	  major=".$current"
-	  versuffix=".$current.$revision"
-	  ;;
-
-	windows)
-	  # Use '-' rather than '.', since we only want one
-	  # extension on DOS 8.3 filesystems.
-	  func_arith $current - $age
-	  major=$func_arith_result
-	  versuffix="-$major"
-	  ;;
-
-	*)
-	  func_fatal_configuration "unknown library version type \`$version_type'"
-	  ;;
-	esac
-
-	# Clear the version info if we defaulted, and they specified a release.
-	if test -z "$vinfo" && test -n "$release"; then
-	  major=
-	  case $version_type in
-	  darwin)
-	    # we can't check for "0.0" in archive_cmds due to quoting
-	    # problems, so we reset it completely
-	    verstring=
-	    ;;
-	  *)
-	    verstring="0.0"
-	    ;;
-	  esac
-	  if test "$need_version" = no; then
-	    versuffix=
-	  else
-	    versuffix=".0.0"
-	  fi
-	fi
-
-	# Remove version info from name if versioning should be avoided
-	if test "$avoid_version" = yes && test "$need_version" = no; then
-	  major=
-	  versuffix=
-	  verstring=""
-	fi
-
-	# Check to see if the archive will have undefined symbols.
-	if test "$allow_undefined" = yes; then
-	  if test "$allow_undefined_flag" = unsupported; then
-	    func_warning "undefined symbols not allowed in $host shared libraries"
-	    build_libtool_libs=no
-	    build_old_libs=yes
-	  fi
-	else
-	  # Don't allow undefined symbols.
-	  allow_undefined_flag="$no_undefined_flag"
-	fi
-
-      fi
-
-      func_generate_dlsyms "$libname" "$libname" "yes"
-      libobjs="$libobjs $symfileobj"
-      test "X$libobjs" = "X " && libobjs=
-
-      if test "$mode" != relink; then
-	# Remove our outputs, but don't remove object files since they
-	# may have been created when compiling PIC objects.
-	removelist=
-	tempremovelist=`$ECHO "$output_objdir/*"`
-	for p in $tempremovelist; do
-	  case $p in
-	    *.$objext | *.gcno)
-	       ;;
-	    $output_objdir/$outputname | $output_objdir/$libname.* | $output_objdir/${libname}${release}.*)
-	       if test "X$precious_files_regex" != "X"; then
-		 if $ECHO "$p" | $EGREP -e "$precious_files_regex" >/dev/null 2>&1
-		 then
-		   continue
-		 fi
-	       fi
-	       removelist="$removelist $p"
-	       ;;
-	    *) ;;
-	  esac
-	done
-	test -n "$removelist" && \
-	  func_show_eval "${RM}r \$removelist"
-      fi
-
-      # Now set the variables for building old libraries.
-      if test "$build_old_libs" = yes && test "$build_libtool_libs" != convenience ; then
-	oldlibs="$oldlibs $output_objdir/$libname.$libext"
-
-	# Transform .lo files to .o files.
-	oldobjs="$objs "`$ECHO "X$libobjs" | $SP2NL | $Xsed -e '/\.'${libext}'$/d' -e "$lo2o" | $NL2SP`
-      fi
-
-      # Eliminate all temporary directories.
-      #for path in $notinst_path; do
-      #	lib_search_path=`$ECHO "X$lib_search_path " | $Xsed -e "s% $path % %g"`
-      #	deplibs=`$ECHO "X$deplibs " | $Xsed -e "s% -L$path % %g"`
-      #	dependency_libs=`$ECHO "X$dependency_libs " | $Xsed -e "s% -L$path % %g"`
-      #done
-
-      if test -n "$xrpath"; then
-	# If the user specified any rpath flags, then add them.
-	temp_xrpath=
-	for libdir in $xrpath; do
-	  temp_xrpath="$temp_xrpath -R$libdir"
-	  case "$finalize_rpath " in
-	  *" $libdir "*) ;;
-	  *) finalize_rpath="$finalize_rpath $libdir" ;;
-	  esac
-	done
-	if test "$hardcode_into_libs" != yes || test "$build_old_libs" = yes; then
-	  dependency_libs="$temp_xrpath $dependency_libs"
-	fi
-      fi
-
-      # Make sure dlfiles contains only unique files that won't be dlpreopened
-      old_dlfiles="$dlfiles"
-      dlfiles=
-      for lib in $old_dlfiles; do
-	case " $dlprefiles $dlfiles " in
-	*" $lib "*) ;;
-	*) dlfiles="$dlfiles $lib" ;;
-	esac
-      done
-
-      # Make sure dlprefiles contains only unique files
-      old_dlprefiles="$dlprefiles"
-      dlprefiles=
-      for lib in $old_dlprefiles; do
-	case "$dlprefiles " in
-	*" $lib "*) ;;
-	*) dlprefiles="$dlprefiles $lib" ;;
-	esac
-      done
-
-      if test "$build_libtool_libs" = yes; then
-	if test -n "$rpath"; then
-	  case $host in
-	  *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-beos* | *-cegcc*)
-	    # these systems don't actually have a c library (as such)!
-	    ;;
-	  *-*-rhapsody* | *-*-darwin1.[012])
-	    # Rhapsody C library is in the System framework
-	    deplibs="$deplibs System.ltframework"
-	    ;;
-	  *-*-netbsd*)
-	    # Don't link with libc until the a.out ld.so is fixed.
-	    ;;
-	  *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*)
-	    # Do not include libc due to us having libc/libc_r.
-	    ;;
-	  *-*-sco3.2v5* | *-*-sco5v6*)
-	    # Causes problems with __ctype
-	    ;;
-	  *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*)
-	    # Compiler inserts libc in the correct place for threads to work
-	    ;;
-	  *)
-	    # Add libc to deplibs on all other systems if necessary.
-	    if test "$build_libtool_need_lc" = "yes"; then
-	      deplibs="$deplibs -lc"
-	    fi
-	    ;;
-	  esac
-	fi
-
-	# Transform deplibs into only deplibs that can be linked in shared.
-	name_save=$name
-	libname_save=$libname
-	release_save=$release
-	versuffix_save=$versuffix
-	major_save=$major
-	# I'm not sure if I'm treating the release correctly.  I think
-	# release should show up in the -l (ie -lgmp5) so we don't want to
-	# add it in twice.  Is that correct?
-	release=""
-	versuffix=""
-	major=""
-	newdeplibs=
-	droppeddeps=no
-	case $deplibs_check_method in
-	pass_all)
-	  # Don't check for shared/static.  Everything works.
-	  # This might be a little naive.  We might want to check
-	  # whether the library exists or not.  But this is on
-	  # osf3 & osf4 and I'm not really sure... Just
-	  # implementing what was already the behavior.
-	  newdeplibs=$deplibs
-	  ;;
-	test_compile)
-	  # This code stresses the "libraries are programs" paradigm to its
-	  # limits. Maybe even breaks it.  We compile a program, linking it
-	  # against the deplibs as a proxy for the library.  Then we can check
-	  # whether they linked in statically or dynamically with ldd.
-	  $opt_dry_run || $RM conftest.c
-	  cat > conftest.c <<EOF
-	  int main() { return 0; }
-EOF
-	  $opt_dry_run || $RM conftest
-	  if $LTCC $LTCFLAGS -o conftest conftest.c $deplibs; then
-	    ldd_output=`ldd conftest`
-	    for i in $deplibs; do
-	      case $i in
-	      -l*)
-		func_stripname -l '' "$i"
-		name=$func_stripname_result
-		if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
-		  case " $predeps $postdeps " in
-		  *" $i "*)
-		    newdeplibs="$newdeplibs $i"
-		    i=""
-		    ;;
-		  esac
-		fi
-		if test -n "$i" ; then
-		  libname=`eval "\\$ECHO \"$libname_spec\""`
-		  deplib_matches=`eval "\\$ECHO \"$library_names_spec\""`
-		  set dummy $deplib_matches; shift
-		  deplib_match=$1
-		  if test `expr "$ldd_output" : ".*$deplib_match"` -ne 0 ; then
-		    newdeplibs="$newdeplibs $i"
-		  else
-		    droppeddeps=yes
-		    $ECHO
-		    $ECHO "*** Warning: dynamic linker does not accept needed library $i."
-		    $ECHO "*** I have the capability to make that library automatically link in when"
-		    $ECHO "*** you link to this library.  But I can only do this if you have a"
-		    $ECHO "*** shared version of the library, which I believe you do not have"
-		    $ECHO "*** because a test_compile did reveal that the linker did not use it for"
-		    $ECHO "*** its dynamic dependency list that programs get resolved with at runtime."
-		  fi
-		fi
-		;;
-	      *)
-		newdeplibs="$newdeplibs $i"
-		;;
-	      esac
-	    done
-	  else
-	    # Error occurred in the first compile.  Let's try to salvage
-	    # the situation: Compile a separate program for each library.
-	    for i in $deplibs; do
-	      case $i in
-	      -l*)
-		func_stripname -l '' "$i"
-		name=$func_stripname_result
-		$opt_dry_run || $RM conftest
-		if $LTCC $LTCFLAGS -o conftest conftest.c $i; then
-		  ldd_output=`ldd conftest`
-		  if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
-		    case " $predeps $postdeps " in
-		    *" $i "*)
-		      newdeplibs="$newdeplibs $i"
-		      i=""
-		      ;;
-		    esac
-		  fi
-		  if test -n "$i" ; then
-		    libname=`eval "\\$ECHO \"$libname_spec\""`
-		    deplib_matches=`eval "\\$ECHO \"$library_names_spec\""`
-		    set dummy $deplib_matches; shift
-		    deplib_match=$1
-		    if test `expr "$ldd_output" : ".*$deplib_match"` -ne 0 ; then
-		      newdeplibs="$newdeplibs $i"
-		    else
-		      droppeddeps=yes
-		      $ECHO
-		      $ECHO "*** Warning: dynamic linker does not accept needed library $i."
-		      $ECHO "*** I have the capability to make that library automatically link in when"
-		      $ECHO "*** you link to this library.  But I can only do this if you have a"
-		      $ECHO "*** shared version of the library, which you do not appear to have"
-		      $ECHO "*** because a test_compile did reveal that the linker did not use this one"
-		      $ECHO "*** as a dynamic dependency that programs can get resolved with at runtime."
-		    fi
-		  fi
-		else
-		  droppeddeps=yes
-		  $ECHO
-		  $ECHO "*** Warning!  Library $i is needed by this library but I was not able to"
-		  $ECHO "*** make it link in!  You will probably need to install it or some"
-		  $ECHO "*** library that it depends on before this library will be fully"
-		  $ECHO "*** functional.  Installing it before continuing would be even better."
-		fi
-		;;
-	      *)
-		newdeplibs="$newdeplibs $i"
-		;;
-	      esac
-	    done
-	  fi
-	  ;;
-	file_magic*)
-	  set dummy $deplibs_check_method; shift
-	  file_magic_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
-	  for a_deplib in $deplibs; do
-	    case $a_deplib in
-	    -l*)
-	      func_stripname -l '' "$a_deplib"
-	      name=$func_stripname_result
-	      if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
-		case " $predeps $postdeps " in
-		*" $a_deplib "*)
-		  newdeplibs="$newdeplibs $a_deplib"
-		  a_deplib=""
-		  ;;
-		esac
-	      fi
-	      if test -n "$a_deplib" ; then
-		libname=`eval "\\$ECHO \"$libname_spec\""`
-		for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do
-		  potential_libs=`ls $i/$libname[.-]* 2>/dev/null`
-		  for potent_lib in $potential_libs; do
-		      # Follow soft links.
-		      if ls -lLd "$potent_lib" 2>/dev/null |
-			 $GREP " -> " >/dev/null; then
-			continue
-		      fi
-		      # The statement above tries to avoid entering an
-		      # endless loop below, in case of cyclic links.
-		      # We might still enter an endless loop, since a link
-		      # loop can be closed while we follow links,
-		      # but so what?
-		      potlib="$potent_lib"
-		      while test -h "$potlib" 2>/dev/null; do
-			potliblink=`ls -ld $potlib | ${SED} 's/.* -> //'`
-			case $potliblink in
-			[\\/]* | [A-Za-z]:[\\/]*) potlib="$potliblink";;
-			*) potlib=`$ECHO "X$potlib" | $Xsed -e 's,[^/]*$,,'`"$potliblink";;
-			esac
-		      done
-		      if eval $file_magic_cmd \"\$potlib\" 2>/dev/null |
-			 $SED -e 10q |
-			 $EGREP "$file_magic_regex" > /dev/null; then
-			newdeplibs="$newdeplibs $a_deplib"
-			a_deplib=""
-			break 2
-		      fi
-		  done
-		done
-	      fi
-	      if test -n "$a_deplib" ; then
-		droppeddeps=yes
-		$ECHO
-		$ECHO "*** Warning: linker path does not have real file for library $a_deplib."
-		$ECHO "*** I have the capability to make that library automatically link in when"
-		$ECHO "*** you link to this library.  But I can only do this if you have a"
-		$ECHO "*** shared version of the library, which you do not appear to have"
-		$ECHO "*** because I did check the linker path looking for a file starting"
-		if test -z "$potlib" ; then
-		  $ECHO "*** with $libname but no candidates were found. (...for file magic test)"
-		else
-		  $ECHO "*** with $libname and none of the candidates passed a file format test"
-		  $ECHO "*** using a file magic. Last file checked: $potlib"
-		fi
-	      fi
-	      ;;
-	    *)
-	      # Add a -L argument.
-	      newdeplibs="$newdeplibs $a_deplib"
-	      ;;
-	    esac
-	  done # Gone through all deplibs.
-	  ;;
-	match_pattern*)
-	  set dummy $deplibs_check_method; shift
-	  match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
-	  for a_deplib in $deplibs; do
-	    case $a_deplib in
-	    -l*)
-	      func_stripname -l '' "$a_deplib"
-	      name=$func_stripname_result
-	      if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
-		case " $predeps $postdeps " in
-		*" $a_deplib "*)
-		  newdeplibs="$newdeplibs $a_deplib"
-		  a_deplib=""
-		  ;;
-		esac
-	      fi
-	      if test -n "$a_deplib" ; then
-		libname=`eval "\\$ECHO \"$libname_spec\""`
-		for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do
-		  potential_libs=`ls $i/$libname[.-]* 2>/dev/null`
-		  for potent_lib in $potential_libs; do
-		    potlib="$potent_lib" # see symlink-check above in file_magic test
-		    if eval "\$ECHO \"X$potent_lib\"" 2>/dev/null | $Xsed -e 10q | \
-		       $EGREP "$match_pattern_regex" > /dev/null; then
-		      newdeplibs="$newdeplibs $a_deplib"
-		      a_deplib=""
-		      break 2
-		    fi
-		  done
-		done
-	      fi
-	      if test -n "$a_deplib" ; then
-		droppeddeps=yes
-		$ECHO
-		$ECHO "*** Warning: linker path does not have real file for library $a_deplib."
-		$ECHO "*** I have the capability to make that library automatically link in when"
-		$ECHO "*** you link to this library.  But I can only do this if you have a"
-		$ECHO "*** shared version of the library, which you do not appear to have"
-		$ECHO "*** because I did check the linker path looking for a file starting"
-		if test -z "$potlib" ; then
-		  $ECHO "*** with $libname but no candidates were found. (...for regex pattern test)"
-		else
-		  $ECHO "*** with $libname and none of the candidates passed a file format test"
-		  $ECHO "*** using a regex pattern. Last file checked: $potlib"
-		fi
-	      fi
-	      ;;
-	    *)
-	      # Add a -L argument.
-	      newdeplibs="$newdeplibs $a_deplib"
-	      ;;
-	    esac
-	  done # Gone through all deplibs.
-	  ;;
-	none | unknown | *)
-	  newdeplibs=""
-	  tmp_deplibs=`$ECHO "X $deplibs" | $Xsed \
-	      -e 's/ -lc$//' -e 's/ -[LR][^ ]*//g'`
-	  if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
-	    for i in $predeps $postdeps ; do
-	      # can't use Xsed below, because $i might contain '/'
-	      tmp_deplibs=`$ECHO "X $tmp_deplibs" | $Xsed -e "s,$i,,"`
-	    done
-	  fi
-	  if $ECHO "X $tmp_deplibs" | $Xsed -e 's/[	 ]//g' |
-	     $GREP . >/dev/null; then
-	    $ECHO
-	    if test "X$deplibs_check_method" = "Xnone"; then
-	      $ECHO "*** Warning: inter-library dependencies are not supported in this platform."
-	    else
-	      $ECHO "*** Warning: inter-library dependencies are not known to be supported."
-	    fi
-	    $ECHO "*** All declared inter-library dependencies are being dropped."
-	    droppeddeps=yes
-	  fi
-	  ;;
-	esac
-	versuffix=$versuffix_save
-	major=$major_save
-	release=$release_save
-	libname=$libname_save
-	name=$name_save
-
-	case $host in
-	*-*-rhapsody* | *-*-darwin1.[012])
-	  # On Rhapsody replace the C library with the System framework
-	  newdeplibs=`$ECHO "X $newdeplibs" | $Xsed -e 's/ -lc / System.ltframework /'`
-	  ;;
-	esac
-
-	if test "$droppeddeps" = yes; then
-	  if test "$module" = yes; then
-	    $ECHO
-	    $ECHO "*** Warning: libtool could not satisfy all declared inter-library"
-	    $ECHO "*** dependencies of module $libname.  Therefore, libtool will create"
-	    $ECHO "*** a static module, that should work as long as the dlopening"
-	    $ECHO "*** application is linked with the -dlopen flag."
-	    if test -z "$global_symbol_pipe"; then
-	      $ECHO
-	      $ECHO "*** However, this would only work if libtool was able to extract symbol"
-	      $ECHO "*** lists from a program, using \`nm' or equivalent, but libtool could"
-	      $ECHO "*** not find such a program.  So, this module is probably useless."
-	      $ECHO "*** \`nm' from GNU binutils and a full rebuild may help."
-	    fi
-	    if test "$build_old_libs" = no; then
-	      oldlibs="$output_objdir/$libname.$libext"
-	      build_libtool_libs=module
-	      build_old_libs=yes
-	    else
-	      build_libtool_libs=no
-	    fi
-	  else
-	    $ECHO "*** The inter-library dependencies that have been dropped here will be"
-	    $ECHO "*** automatically added whenever a program is linked with this library"
-	    $ECHO "*** or is declared to -dlopen it."
-
-	    if test "$allow_undefined" = no; then
-	      $ECHO
-	      $ECHO "*** Since this library must not contain undefined symbols,"
-	      $ECHO "*** because either the platform does not support them or"
-	      $ECHO "*** it was explicitly requested with -no-undefined,"
-	      $ECHO "*** libtool will only create a static version of it."
-	      if test "$build_old_libs" = no; then
-		oldlibs="$output_objdir/$libname.$libext"
-		build_libtool_libs=module
-		build_old_libs=yes
-	      else
-		build_libtool_libs=no
-	      fi
-	    fi
-	  fi
-	fi
-	# Done checking deplibs!
-	deplibs=$newdeplibs
-      fi
-      # Time to change all our "foo.ltframework" stuff back to "-framework foo"
-      case $host in
-	*-*-darwin*)
-	  newdeplibs=`$ECHO "X $newdeplibs" | $Xsed -e 's% \([^ $]*\).ltframework% -framework \1%g'`
-	  new_inherited_linker_flags=`$ECHO "X $new_inherited_linker_flags" | $Xsed -e 's% \([^ $]*\).ltframework% -framework \1%g'`
-	  deplibs=`$ECHO "X $deplibs" | $Xsed -e 's% \([^ $]*\).ltframework% -framework \1%g'`
-	  ;;
-      esac
-
-      # move library search paths that coincide with paths to not yet
-      # installed libraries to the beginning of the library search list
-      new_libs=
-      for path in $notinst_path; do
-	case " $new_libs " in
-	*" -L$path/$objdir "*) ;;
-	*)
-	  case " $deplibs " in
-	  *" -L$path/$objdir "*)
-	    new_libs="$new_libs -L$path/$objdir" ;;
-	  esac
-	  ;;
-	esac
-      done
-      for deplib in $deplibs; do
-	case $deplib in
-	-L*)
-	  case " $new_libs " in
-	  *" $deplib "*) ;;
-	  *) new_libs="$new_libs $deplib" ;;
-	  esac
-	  ;;
-	*) new_libs="$new_libs $deplib" ;;
-	esac
-      done
-      deplibs="$new_libs"
-
-      # All the library-specific variables (install_libdir is set above).
-      library_names=
-      old_library=
-      dlname=
-
-      # Test again, we may have decided not to build it any more
-      if test "$build_libtool_libs" = yes; then
-	if test "$hardcode_into_libs" = yes; then
-	  # Hardcode the library paths
-	  hardcode_libdirs=
-	  dep_rpath=
-	  rpath="$finalize_rpath"
-	  test "$mode" != relink && rpath="$compile_rpath$rpath"
-	  for libdir in $rpath; do
-	    if test -n "$hardcode_libdir_flag_spec"; then
-	      if test -n "$hardcode_libdir_separator"; then
-		if test -z "$hardcode_libdirs"; then
-		  hardcode_libdirs="$libdir"
-		else
-		  # Just accumulate the unique libdirs.
-		  case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
-		  *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
-		    ;;
-		  *)
-		    hardcode_libdirs="$hardcode_libdirs$hardcode_libdir_separator$libdir"
-		    ;;
-		  esac
-		fi
-	      else
-		eval flag=\"$hardcode_libdir_flag_spec\"
-		dep_rpath="$dep_rpath $flag"
-	      fi
-	    elif test -n "$runpath_var"; then
-	      case "$perm_rpath " in
-	      *" $libdir "*) ;;
-	      *) perm_rpath="$perm_rpath $libdir" ;;
-	      esac
-	    fi
-	  done
-	  # Substitute the hardcoded libdirs into the rpath.
-	  if test -n "$hardcode_libdir_separator" &&
-	     test -n "$hardcode_libdirs"; then
-	    libdir="$hardcode_libdirs"
-	    if test -n "$hardcode_libdir_flag_spec_ld"; then
-	      eval dep_rpath=\"$hardcode_libdir_flag_spec_ld\"
-	    else
-	      eval dep_rpath=\"$hardcode_libdir_flag_spec\"
-	    fi
-	  fi
-	  if test -n "$runpath_var" && test -n "$perm_rpath"; then
-	    # We should set the runpath_var.
-	    rpath=
-	    for dir in $perm_rpath; do
-	      rpath="$rpath$dir:"
-	    done
-	    eval "$runpath_var='$rpath\$$runpath_var'; export $runpath_var"
-	  fi
-	  test -n "$dep_rpath" && deplibs="$dep_rpath $deplibs"
-	fi
-
-	shlibpath="$finalize_shlibpath"
-	test "$mode" != relink && shlibpath="$compile_shlibpath$shlibpath"
-	if test -n "$shlibpath"; then
-	  eval "$shlibpath_var='$shlibpath\$$shlibpath_var'; export $shlibpath_var"
-	fi
-
-	# Get the real and link names of the library.
-	eval shared_ext=\"$shrext_cmds\"
-	eval library_names=\"$library_names_spec\"
-	set dummy $library_names
-	shift
-	realname="$1"
-	shift
-
-	if test -n "$soname_spec"; then
-	  eval soname=\"$soname_spec\"
-	else
-	  soname="$realname"
-	fi
-	if test -z "$dlname"; then
-	  dlname=$soname
-	fi
-
-	lib="$output_objdir/$realname"
-	linknames=
-	for link
-	do
-	  linknames="$linknames $link"
-	done
-
-	# Use standard objects if they are pic
-	test -z "$pic_flag" && libobjs=`$ECHO "X$libobjs" | $SP2NL | $Xsed -e "$lo2o" | $NL2SP`
-	test "X$libobjs" = "X " && libobjs=
-
-	delfiles=
-	if test -n "$export_symbols" && test -n "$include_expsyms"; then
-	  $opt_dry_run || cp "$export_symbols" "$output_objdir/$libname.uexp"
-	  export_symbols="$output_objdir/$libname.uexp"
-	  delfiles="$delfiles $export_symbols"
-	fi
-
-	orig_export_symbols=
-	case $host_os in
-	cygwin* | mingw* | cegcc*)
-	  if test -n "$export_symbols" && test -z "$export_symbols_regex"; then
-	    # exporting using user supplied symfile
-	    if test "x`$SED 1q $export_symbols`" != xEXPORTS; then
-	      # and it's NOT already a .def file. Must figure out
-	      # which of the given symbols are data symbols and tag
-	      # them as such. So, trigger use of export_symbols_cmds.
-	      # export_symbols gets reassigned inside the "prepare
-	      # the list of exported symbols" if statement, so the
-	      # include_expsyms logic still works.
-	      orig_export_symbols="$export_symbols"
-	      export_symbols=
-	      always_export_symbols=yes
-	    fi
-	  fi
-	  ;;
-	esac
-
-	# Prepare the list of exported symbols
-	if test -z "$export_symbols"; then
-	  if test "$always_export_symbols" = yes || test -n "$export_symbols_regex"; then
-	    func_verbose "generating symbol list for \`$libname.la'"
-	    export_symbols="$output_objdir/$libname.exp"
-	    $opt_dry_run || $RM $export_symbols
-	    cmds=$export_symbols_cmds
-	    save_ifs="$IFS"; IFS='~'
-	    for cmd in $cmds; do
-	      IFS="$save_ifs"
-	      eval cmd=\"$cmd\"
-	      func_len " $cmd"
-	      len=$func_len_result
-	      if test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then
-		func_show_eval "$cmd" 'exit $?'
-		skipped_export=false
-	      else
-		# The command line is too long to execute in one step.
-		func_verbose "using reloadable object file for export list..."
-		skipped_export=:
-		# Break out early, otherwise skipped_export may be
-		# set to false by a later but shorter cmd.
-		break
-	      fi
-	    done
-	    IFS="$save_ifs"
-	    if test -n "$export_symbols_regex" && test "X$skipped_export" != "X:"; then
-	      func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"'
-	      func_show_eval '$MV "${export_symbols}T" "$export_symbols"'
-	    fi
-	  fi
-	fi
-
-	if test -n "$export_symbols" && test -n "$include_expsyms"; then
-	  tmp_export_symbols="$export_symbols"
-	  test -n "$orig_export_symbols" && tmp_export_symbols="$orig_export_symbols"
-	  $opt_dry_run || eval '$ECHO "X$include_expsyms" | $Xsed | $SP2NL >> "$tmp_export_symbols"'
-	fi
-
-	if test "X$skipped_export" != "X:" && test -n "$orig_export_symbols"; then
-	  # The given exports_symbols file has to be filtered, so filter it.
-	  func_verbose "filter symbol list for \`$libname.la' to tag DATA exports"
-	  # FIXME: $output_objdir/$libname.filter potentially contains lots of
-	  # 's' commands which not all seds can handle. GNU sed should be fine
-	  # though. Also, the filter scales superlinearly with the number of
-	  # global variables. join(1) would be nice here, but unfortunately
-	  # isn't a blessed tool.
-	  $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter
-	  delfiles="$delfiles $export_symbols $output_objdir/$libname.filter"
-	  export_symbols=$output_objdir/$libname.def
-	  $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols
-	fi
-
-	tmp_deplibs=
-	for test_deplib in $deplibs; do
-	  case " $convenience " in
-	  *" $test_deplib "*) ;;
-	  *)
-	    tmp_deplibs="$tmp_deplibs $test_deplib"
-	    ;;
-	  esac
-	done
-	deplibs="$tmp_deplibs"
-
-	if test -n "$convenience"; then
-	  if test -n "$whole_archive_flag_spec" &&
-	    test "$compiler_needs_object" = yes &&
-	    test -z "$libobjs"; then
-	    # extract the archives, so we have objects to list.
-	    # TODO: could optimize this to just extract one archive.
-	    whole_archive_flag_spec=
-	  fi
-	  if test -n "$whole_archive_flag_spec"; then
-	    save_libobjs=$libobjs
-	    eval libobjs=\"\$libobjs $whole_archive_flag_spec\"
-	    test "X$libobjs" = "X " && libobjs=
-	  else
-	    gentop="$output_objdir/${outputname}x"
-	    generated="$generated $gentop"
-
-	    func_extract_archives $gentop $convenience
-	    libobjs="$libobjs $func_extract_archives_result"
-	    test "X$libobjs" = "X " && libobjs=
-	  fi
-	fi
-
-	if test "$thread_safe" = yes && test -n "$thread_safe_flag_spec"; then
-	  eval flag=\"$thread_safe_flag_spec\"
-	  linker_flags="$linker_flags $flag"
-	fi
-
-	# Make a backup of the uninstalled library when relinking
-	if test "$mode" = relink; then
-	  $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}U && $MV $realname ${realname}U)' || exit $?
-	fi
-
-	# Do each of the archive commands.
-	if test "$module" = yes && test -n "$module_cmds" ; then
-	  if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then
-	    eval test_cmds=\"$module_expsym_cmds\"
-	    cmds=$module_expsym_cmds
-	  else
-	    eval test_cmds=\"$module_cmds\"
-	    cmds=$module_cmds
-	  fi
-	else
-	  if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then
-	    eval test_cmds=\"$archive_expsym_cmds\"
-	    cmds=$archive_expsym_cmds
-	  else
-	    eval test_cmds=\"$archive_cmds\"
-	    cmds=$archive_cmds
-	  fi
-	fi
-
-	if test "X$skipped_export" != "X:" &&
-	   func_len " $test_cmds" &&
-	   len=$func_len_result &&
-	   test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then
-	  :
-	else
-	  # The command line is too long to link in one step, link piecewise
-	  # or, if using GNU ld and skipped_export is not :, use a linker
-	  # script.
-
-	  # Save the value of $output and $libobjs because we want to
-	  # use them later.  If we have whole_archive_flag_spec, we
-	  # want to use save_libobjs as it was before
-	  # whole_archive_flag_spec was expanded, because we can't
-	  # assume the linker understands whole_archive_flag_spec.
-	  # This may have to be revisited, in case too many
-	  # convenience libraries get linked in and end up exceeding
-	  # the spec.
-	  if test -z "$convenience" || test -z "$whole_archive_flag_spec"; then
-	    save_libobjs=$libobjs
-	  fi
-	  save_output=$output
-	  output_la=`$ECHO "X$output" | $Xsed -e "$basename"`
-
-	  # Clear the reloadable object creation command queue and
-	  # initialize k to one.
-	  test_cmds=
-	  concat_cmds=
-	  objlist=
-	  last_robj=
-	  k=1
-
-	  if test -n "$save_libobjs" && test "X$skipped_export" != "X:" && test "$with_gnu_ld" = yes; then
-	    output=${output_objdir}/${output_la}.lnkscript
-	    func_verbose "creating GNU ld script: $output"
-	    $ECHO 'INPUT (' > $output
-	    for obj in $save_libobjs
-	    do
-	      $ECHO "$obj" >> $output
-	    done
-	    $ECHO ')' >> $output
-	    delfiles="$delfiles $output"
-	  elif test -n "$save_libobjs" && test "X$skipped_export" != "X:" && test "X$file_list_spec" != X; then
-	    output=${output_objdir}/${output_la}.lnk
-	    func_verbose "creating linker input file list: $output"
-	    : > $output
-	    set x $save_libobjs
-	    shift
-	    firstobj=
-	    if test "$compiler_needs_object" = yes; then
-	      firstobj="$1 "
-	      shift
-	    fi
-	    for obj
-	    do
-	      $ECHO "$obj" >> $output
-	    done
-	    delfiles="$delfiles $output"
-	    output=$firstobj\"$file_list_spec$output\"
-	  else
-	    if test -n "$save_libobjs"; then
-	      func_verbose "creating reloadable object files..."
-	      output=$output_objdir/$output_la-${k}.$objext
-	      eval test_cmds=\"$reload_cmds\"
-	      func_len " $test_cmds"
-	      len0=$func_len_result
-	      len=$len0
-
-	      # Loop over the list of objects to be linked.
-	      for obj in $save_libobjs
-	      do
-		func_len " $obj"
-		func_arith $len + $func_len_result
-		len=$func_arith_result
-		if test "X$objlist" = X ||
-		   test "$len" -lt "$max_cmd_len"; then
-		  func_append objlist " $obj"
-		else
-		  # The command $test_cmds is almost too long, add a
-		  # command to the queue.
-		  if test "$k" -eq 1 ; then
-		    # The first file doesn't have a previous command to add.
-		    eval concat_cmds=\"$reload_cmds $objlist $last_robj\"
-		  else
-		    # All subsequent reloadable object files will link in
-		    # the last one created.
-		    eval concat_cmds=\"\$concat_cmds~$reload_cmds $objlist $last_robj~\$RM $last_robj\"
-		  fi
-		  last_robj=$output_objdir/$output_la-${k}.$objext
-		  func_arith $k + 1
-		  k=$func_arith_result
-		  output=$output_objdir/$output_la-${k}.$objext
-		  objlist=$obj
-		  func_len " $last_robj"
-		  func_arith $len0 + $func_len_result
-		  len=$func_arith_result
-		fi
-	      done
-	      # Handle the remaining objects by creating one last
-	      # reloadable object file.  All subsequent reloadable object
-	      # files will link in the last one created.
-	      test -z "$concat_cmds" || concat_cmds=$concat_cmds~
-	      eval concat_cmds=\"\${concat_cmds}$reload_cmds $objlist $last_robj\"
-	      if test -n "$last_robj"; then
-	        eval concat_cmds=\"\${concat_cmds}~\$RM $last_robj\"
-	      fi
-	      delfiles="$delfiles $output"
-
-	    else
-	      output=
-	    fi
-
-	    if ${skipped_export-false}; then
-	      func_verbose "generating symbol list for \`$libname.la'"
-	      export_symbols="$output_objdir/$libname.exp"
-	      $opt_dry_run || $RM $export_symbols
-	      libobjs=$output
-	      # Append the command to create the export file.
-	      test -z "$concat_cmds" || concat_cmds=$concat_cmds~
-	      eval concat_cmds=\"\$concat_cmds$export_symbols_cmds\"
-	      if test -n "$last_robj"; then
-		eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\"
-	      fi
-	    fi
-
-	    test -n "$save_libobjs" &&
-	      func_verbose "creating a temporary reloadable object file: $output"
-
-	    # Loop through the commands generated above and execute them.
-	    save_ifs="$IFS"; IFS='~'
-	    for cmd in $concat_cmds; do
-	      IFS="$save_ifs"
-	      $opt_silent || {
-		  func_quote_for_expand "$cmd"
-		  eval "func_echo $func_quote_for_expand_result"
-	      }
-	      $opt_dry_run || eval "$cmd" || {
-		lt_exit=$?
-
-		# Restore the uninstalled library and exit
-		if test "$mode" = relink; then
-		  ( cd "$output_objdir" && \
-		    $RM "${realname}T" && \
-		    $MV "${realname}U" "$realname" )
-		fi
-
-		exit $lt_exit
-	      }
-	    done
-	    IFS="$save_ifs"
-
-	    if test -n "$export_symbols_regex" && ${skipped_export-false}; then
-	      func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"'
-	      func_show_eval '$MV "${export_symbols}T" "$export_symbols"'
-	    fi
-	  fi
-
-          if ${skipped_export-false}; then
-	    if test -n "$export_symbols" && test -n "$include_expsyms"; then
-	      tmp_export_symbols="$export_symbols"
-	      test -n "$orig_export_symbols" && tmp_export_symbols="$orig_export_symbols"
-	      $opt_dry_run || eval '$ECHO "X$include_expsyms" | $Xsed | $SP2NL >> "$tmp_export_symbols"'
-	    fi
-
-	    if test -n "$orig_export_symbols"; then
-	      # The given exports_symbols file has to be filtered, so filter it.
-	      func_verbose "filter symbol list for \`$libname.la' to tag DATA exports"
-	      # FIXME: $output_objdir/$libname.filter potentially contains lots of
-	      # 's' commands which not all seds can handle. GNU sed should be fine
-	      # though. Also, the filter scales superlinearly with the number of
-	      # global variables. join(1) would be nice here, but unfortunately
-	      # isn't a blessed tool.
-	      $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter
-	      delfiles="$delfiles $export_symbols $output_objdir/$libname.filter"
-	      export_symbols=$output_objdir/$libname.def
-	      $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols
-	    fi
-	  fi
-
-	  libobjs=$output
-	  # Restore the value of output.
-	  output=$save_output
-
-	  if test -n "$convenience" && test -n "$whole_archive_flag_spec"; then
-	    eval libobjs=\"\$libobjs $whole_archive_flag_spec\"
-	    test "X$libobjs" = "X " && libobjs=
-	  fi
-	  # Expand the library linking commands again to reset the
-	  # value of $libobjs for piecewise linking.
-
-	  # Do each of the archive commands.
-	  if test "$module" = yes && test -n "$module_cmds" ; then
-	    if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then
-	      cmds=$module_expsym_cmds
-	    else
-	      cmds=$module_cmds
-	    fi
-	  else
-	    if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then
-	      cmds=$archive_expsym_cmds
-	    else
-	      cmds=$archive_cmds
-	    fi
-	  fi
-	fi
-
-	if test -n "$delfiles"; then
-	  # Append the command to remove temporary files to $cmds.
-	  eval cmds=\"\$cmds~\$RM $delfiles\"
-	fi
-
-	# Add any objects from preloaded convenience libraries
-	if test -n "$dlprefiles"; then
-	  gentop="$output_objdir/${outputname}x"
-	  generated="$generated $gentop"
-
-	  func_extract_archives $gentop $dlprefiles
-	  libobjs="$libobjs $func_extract_archives_result"
-	  test "X$libobjs" = "X " && libobjs=
-	fi
-
-	save_ifs="$IFS"; IFS='~'
-	for cmd in $cmds; do
-	  IFS="$save_ifs"
-	  eval cmd=\"$cmd\"
-	  $opt_silent || {
-	    func_quote_for_expand "$cmd"
-	    eval "func_echo $func_quote_for_expand_result"
-	  }
-	  $opt_dry_run || eval "$cmd" || {
-	    lt_exit=$?
-
-	    # Restore the uninstalled library and exit
-	    if test "$mode" = relink; then
-	      ( cd "$output_objdir" && \
-	        $RM "${realname}T" && \
-		$MV "${realname}U" "$realname" )
-	    fi
-
-	    exit $lt_exit
-	  }
-	done
-	IFS="$save_ifs"
-
-	# Restore the uninstalled library and exit
-	if test "$mode" = relink; then
-	  $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}T && $MV $realname ${realname}T && $MV ${realname}U $realname)' || exit $?
-
-	  if test -n "$convenience"; then
-	    if test -z "$whole_archive_flag_spec"; then
-	      func_show_eval '${RM}r "$gentop"'
-	    fi
-	  fi
-
-	  exit $EXIT_SUCCESS
-	fi
-
-	# Create links to the real library.
-	for linkname in $linknames; do
-	  if test "$realname" != "$linkname"; then
-	    func_show_eval '(cd "$output_objdir" && $RM "$linkname" && $LN_S "$realname" "$linkname")' 'exit $?'
-	  fi
-	done
-
-	# If -module or -export-dynamic was specified, set the dlname.
-	if test "$module" = yes || test "$export_dynamic" = yes; then
-	  # On all known operating systems, these are identical.
-	  dlname="$soname"
-	fi
-      fi
-      ;;
-
-    obj)
-      if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then
-	func_warning "\`-dlopen' is ignored for objects"
-      fi
-
-      case " $deplibs" in
-      *\ -l* | *\ -L*)
-	func_warning "\`-l' and \`-L' are ignored for objects" ;;
-      esac
-
-      test -n "$rpath" && \
-	func_warning "\`-rpath' is ignored for objects"
-
-      test -n "$xrpath" && \
-	func_warning "\`-R' is ignored for objects"
-
-      test -n "$vinfo" && \
-	func_warning "\`-version-info' is ignored for objects"
-
-      test -n "$release" && \
-	func_warning "\`-release' is ignored for objects"
-
-      case $output in
-      *.lo)
-	test -n "$objs$old_deplibs" && \
-	  func_fatal_error "cannot build library object \`$output' from non-libtool objects"
-
-	libobj=$output
-	func_lo2o "$libobj"
-	obj=$func_lo2o_result
-	;;
-      *)
-	libobj=
-	obj="$output"
-	;;
-      esac
-
-      # Delete the old objects.
-      $opt_dry_run || $RM $obj $libobj
-
-      # Objects from convenience libraries.  This assumes
-      # single-version convenience libraries.  Whenever we create
-      # different ones for PIC/non-PIC, this we'll have to duplicate
-      # the extraction.
-      reload_conv_objs=
-      gentop=
-      # reload_cmds runs $LD directly, so let us get rid of
-      # -Wl from whole_archive_flag_spec and hope we can get by with
-      # turning comma into space..
-      wl=
-
-      if test -n "$convenience"; then
-	if test -n "$whole_archive_flag_spec"; then
-	  eval tmp_whole_archive_flags=\"$whole_archive_flag_spec\"
-	  reload_conv_objs=$reload_objs\ `$ECHO "X$tmp_whole_archive_flags" | $Xsed -e 's|,| |g'`
-	else
-	  gentop="$output_objdir/${obj}x"
-	  generated="$generated $gentop"
-
-	  func_extract_archives $gentop $convenience
-	  reload_conv_objs="$reload_objs $func_extract_archives_result"
-	fi
-      fi
-
-      # Create the old-style object.
-      reload_objs="$objs$old_deplibs "`$ECHO "X$libobjs" | $SP2NL | $Xsed -e '/\.'${libext}$'/d' -e '/\.lib$/d' -e "$lo2o" | $NL2SP`" $reload_conv_objs" ### testsuite: skip nested quoting test
-
-      output="$obj"
-      func_execute_cmds "$reload_cmds" 'exit $?'
-
-      # Exit if we aren't doing a library object file.
-      if test -z "$libobj"; then
-	if test -n "$gentop"; then
-	  func_show_eval '${RM}r "$gentop"'
-	fi
-
-	exit $EXIT_SUCCESS
-      fi
-
-      if test "$build_libtool_libs" != yes; then
-	if test -n "$gentop"; then
-	  func_show_eval '${RM}r "$gentop"'
-	fi
-
-	# Create an invalid libtool object if no PIC, so that we don't
-	# accidentally link it into a program.
-	# $show "echo timestamp > $libobj"
-	# $opt_dry_run || eval "echo timestamp > $libobj" || exit $?
-	exit $EXIT_SUCCESS
-      fi
-
-      if test -n "$pic_flag" || test "$pic_mode" != default; then
-	# Only do commands if we really have different PIC objects.
-	reload_objs="$libobjs $reload_conv_objs"
-	output="$libobj"
-	func_execute_cmds "$reload_cmds" 'exit $?'
-      fi
-
-      if test -n "$gentop"; then
-	func_show_eval '${RM}r "$gentop"'
-      fi
-
-      exit $EXIT_SUCCESS
-      ;;
-
-    prog)
-      case $host in
-	*cygwin*) func_stripname '' '.exe' "$output"
-	          output=$func_stripname_result.exe;;
-      esac
-      test -n "$vinfo" && \
-	func_warning "\`-version-info' is ignored for programs"
-
-      test -n "$release" && \
-	func_warning "\`-release' is ignored for programs"
-
-      test "$preload" = yes \
-        && test "$dlopen_support" = unknown \
-	&& test "$dlopen_self" = unknown \
-	&& test "$dlopen_self_static" = unknown && \
-	  func_warning "\`LT_INIT([dlopen])' not used. Assuming no dlopen support."
-
-      case $host in
-      *-*-rhapsody* | *-*-darwin1.[012])
-	# On Rhapsody replace the C library is the System framework
-	compile_deplibs=`$ECHO "X $compile_deplibs" | $Xsed -e 's/ -lc / System.ltframework /'`
-	finalize_deplibs=`$ECHO "X $finalize_deplibs" | $Xsed -e 's/ -lc / System.ltframework /'`
-	;;
-      esac
-
-      case $host in
-      *-*-darwin*)
-	# Don't allow lazy linking, it breaks C++ global constructors
-	# But is supposedly fixed on 10.4 or later (yay!).
-	if test "$tagname" = CXX ; then
-	  case ${MACOSX_DEPLOYMENT_TARGET-10.0} in
-	    10.[0123])
-	      compile_command="$compile_command ${wl}-bind_at_load"
-	      finalize_command="$finalize_command ${wl}-bind_at_load"
-	    ;;
-	  esac
-	fi
-	# Time to change all our "foo.ltframework" stuff back to "-framework foo"
-	compile_deplibs=`$ECHO "X $compile_deplibs" | $Xsed -e 's% \([^ $]*\).ltframework% -framework \1%g'`
-	finalize_deplibs=`$ECHO "X $finalize_deplibs" | $Xsed -e 's% \([^ $]*\).ltframework% -framework \1%g'`
-	;;
-      esac
-
-
-      # move library search paths that coincide with paths to not yet
-      # installed libraries to the beginning of the library search list
-      new_libs=
-      for path in $notinst_path; do
-	case " $new_libs " in
-	*" -L$path/$objdir "*) ;;
-	*)
-	  case " $compile_deplibs " in
-	  *" -L$path/$objdir "*)
-	    new_libs="$new_libs -L$path/$objdir" ;;
-	  esac
-	  ;;
-	esac
-      done
-      for deplib in $compile_deplibs; do
-	case $deplib in
-	-L*)
-	  case " $new_libs " in
-	  *" $deplib "*) ;;
-	  *) new_libs="$new_libs $deplib" ;;
-	  esac
-	  ;;
-	*) new_libs="$new_libs $deplib" ;;
-	esac
-      done
-      compile_deplibs="$new_libs"
-
-
-      compile_command="$compile_command $compile_deplibs"
-      finalize_command="$finalize_command $finalize_deplibs"
-
-      if test -n "$rpath$xrpath"; then
-	# If the user specified any rpath flags, then add them.
-	for libdir in $rpath $xrpath; do
-	  # This is the magic to use -rpath.
-	  case "$finalize_rpath " in
-	  *" $libdir "*) ;;
-	  *) finalize_rpath="$finalize_rpath $libdir" ;;
-	  esac
-	done
-      fi
-
-      # Now hardcode the library paths
-      rpath=
-      hardcode_libdirs=
-      for libdir in $compile_rpath $finalize_rpath; do
-	if test -n "$hardcode_libdir_flag_spec"; then
-	  if test -n "$hardcode_libdir_separator"; then
-	    if test -z "$hardcode_libdirs"; then
-	      hardcode_libdirs="$libdir"
-	    else
-	      # Just accumulate the unique libdirs.
-	      case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
-	      *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
-		;;
-	      *)
-		hardcode_libdirs="$hardcode_libdirs$hardcode_libdir_separator$libdir"
-		;;
-	      esac
-	    fi
-	  else
-	    eval flag=\"$hardcode_libdir_flag_spec\"
-	    rpath="$rpath $flag"
-	  fi
-	elif test -n "$runpath_var"; then
-	  case "$perm_rpath " in
-	  *" $libdir "*) ;;
-	  *) perm_rpath="$perm_rpath $libdir" ;;
-	  esac
-	fi
-	case $host in
-	*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
-	  testbindir=`${ECHO} "$libdir" | ${SED} -e 's*/lib$*/bin*'`
-	  case :$dllsearchpath: in
-	  *":$libdir:"*) ;;
-	  ::) dllsearchpath=$libdir;;
-	  *) dllsearchpath="$dllsearchpath:$libdir";;
-	  esac
-	  case :$dllsearchpath: in
-	  *":$testbindir:"*) ;;
-	  ::) dllsearchpath=$testbindir;;
-	  *) dllsearchpath="$dllsearchpath:$testbindir";;
-	  esac
-	  ;;
-	esac
-      done
-      # Substitute the hardcoded libdirs into the rpath.
-      if test -n "$hardcode_libdir_separator" &&
-	 test -n "$hardcode_libdirs"; then
-	libdir="$hardcode_libdirs"
-	eval rpath=\" $hardcode_libdir_flag_spec\"
-      fi
-      compile_rpath="$rpath"
-
-      rpath=
-      hardcode_libdirs=
-      for libdir in $finalize_rpath; do
-	if test -n "$hardcode_libdir_flag_spec"; then
-	  if test -n "$hardcode_libdir_separator"; then
-	    if test -z "$hardcode_libdirs"; then
-	      hardcode_libdirs="$libdir"
-	    else
-	      # Just accumulate the unique libdirs.
-	      case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
-	      *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
-		;;
-	      *)
-		hardcode_libdirs="$hardcode_libdirs$hardcode_libdir_separator$libdir"
-		;;
-	      esac
-	    fi
-	  else
-	    eval flag=\"$hardcode_libdir_flag_spec\"
-	    rpath="$rpath $flag"
-	  fi
-	elif test -n "$runpath_var"; then
-	  case "$finalize_perm_rpath " in
-	  *" $libdir "*) ;;
-	  *) finalize_perm_rpath="$finalize_perm_rpath $libdir" ;;
-	  esac
-	fi
-      done
-      # Substitute the hardcoded libdirs into the rpath.
-      if test -n "$hardcode_libdir_separator" &&
-	 test -n "$hardcode_libdirs"; then
-	libdir="$hardcode_libdirs"
-	eval rpath=\" $hardcode_libdir_flag_spec\"
-      fi
-      finalize_rpath="$rpath"
-
-      if test -n "$libobjs" && test "$build_old_libs" = yes; then
-	# Transform all the library objects into standard objects.
-	compile_command=`$ECHO "X$compile_command" | $SP2NL | $Xsed -e "$lo2o" | $NL2SP`
-	finalize_command=`$ECHO "X$finalize_command" | $SP2NL | $Xsed -e "$lo2o" | $NL2SP`
-      fi
-
-      func_generate_dlsyms "$outputname" "@PROGRAM@" "no"
-
-      # template prelinking step
-      if test -n "$prelink_cmds"; then
-	func_execute_cmds "$prelink_cmds" 'exit $?'
-      fi
-
-      wrappers_required=yes
-      case $host in
-      *cygwin* | *mingw* )
-        if test "$build_libtool_libs" != yes; then
-          wrappers_required=no
-        fi
-        ;;
-      *cegcc)
-        # Disable wrappers for cegcc, we are cross compiling anyway.
-        wrappers_required=no
-        ;;
-      *)
-        if test "$need_relink" = no || test "$build_libtool_libs" != yes; then
-          wrappers_required=no
-        fi
-        ;;
-      esac
-      if test "$wrappers_required" = no; then
-	# Replace the output file specification.
-	compile_command=`$ECHO "X$compile_command" | $Xsed -e 's%@OUTPUT@%'"$output"'%g'`
-	link_command="$compile_command$compile_rpath"
-
-	# We have no uninstalled library dependencies, so finalize right now.
-	exit_status=0
-	func_show_eval "$link_command" 'exit_status=$?'
-
-	# Delete the generated files.
-	if test -f "$output_objdir/${outputname}S.${objext}"; then
-	  func_show_eval '$RM "$output_objdir/${outputname}S.${objext}"'
-	fi
-
-	exit $exit_status
-      fi
-
-      if test -n "$compile_shlibpath$finalize_shlibpath"; then
-	compile_command="$shlibpath_var=\"$compile_shlibpath$finalize_shlibpath\$$shlibpath_var\" $compile_command"
-      fi
-      if test -n "$finalize_shlibpath"; then
-	finalize_command="$shlibpath_var=\"$finalize_shlibpath\$$shlibpath_var\" $finalize_command"
-      fi
-
-      compile_var=
-      finalize_var=
-      if test -n "$runpath_var"; then
-	if test -n "$perm_rpath"; then
-	  # We should set the runpath_var.
-	  rpath=
-	  for dir in $perm_rpath; do
-	    rpath="$rpath$dir:"
-	  done
-	  compile_var="$runpath_var=\"$rpath\$$runpath_var\" "
-	fi
-	if test -n "$finalize_perm_rpath"; then
-	  # We should set the runpath_var.
-	  rpath=
-	  for dir in $finalize_perm_rpath; do
-	    rpath="$rpath$dir:"
-	  done
-	  finalize_var="$runpath_var=\"$rpath\$$runpath_var\" "
-	fi
-      fi
-
-      if test "$no_install" = yes; then
-	# We don't need to create a wrapper script.
-	link_command="$compile_var$compile_command$compile_rpath"
-	# Replace the output file specification.
-	link_command=`$ECHO "X$link_command" | $Xsed -e 's%@OUTPUT@%'"$output"'%g'`
-	# Delete the old output file.
-	$opt_dry_run || $RM $output
-	# Link the executable and exit
-	func_show_eval "$link_command" 'exit $?'
-	exit $EXIT_SUCCESS
-      fi
-
-      if test "$hardcode_action" = relink; then
-	# Fast installation is not supported
-	link_command="$compile_var$compile_command$compile_rpath"
-	relink_command="$finalize_var$finalize_command$finalize_rpath"
-
-	func_warning "this platform does not like uninstalled shared libraries"
-	func_warning "\`$output' will be relinked during installation"
-      else
-	if test "$fast_install" != no; then
-	  link_command="$finalize_var$compile_command$finalize_rpath"
-	  if test "$fast_install" = yes; then
-	    relink_command=`$ECHO "X$compile_var$compile_command$compile_rpath" | $Xsed -e 's%@OUTPUT@%\$progdir/\$file%g'`
-	  else
-	    # fast_install is set to needless
-	    relink_command=
-	  fi
-	else
-	  link_command="$compile_var$compile_command$compile_rpath"
-	  relink_command="$finalize_var$finalize_command$finalize_rpath"
-	fi
-      fi
-
-      # Replace the output file specification.
-      link_command=`$ECHO "X$link_command" | $Xsed -e 's%@OUTPUT@%'"$output_objdir/$outputname"'%g'`
-
-      # Delete the old output files.
-      $opt_dry_run || $RM $output $output_objdir/$outputname $output_objdir/lt-$outputname
-
-      func_show_eval "$link_command" 'exit $?'
-
-      # Now create the wrapper script.
-      func_verbose "creating $output"
-
-      # Quote the relink command for shipping.
-      if test -n "$relink_command"; then
-	# Preserve any variables that may affect compiler behavior
-	for var in $variables_saved_for_relink; do
-	  if eval test -z \"\${$var+set}\"; then
-	    relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command"
-	  elif eval var_value=\$$var; test -z "$var_value"; then
-	    relink_command="$var=; export $var; $relink_command"
-	  else
-	    func_quote_for_eval "$var_value"
-	    relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command"
-	  fi
-	done
-	relink_command="(cd `pwd`; $relink_command)"
-	relink_command=`$ECHO "X$relink_command" | $Xsed -e "$sed_quote_subst"`
-      fi
-
-      # Quote $ECHO for shipping.
-      if test "X$ECHO" = "X$SHELL $progpath --fallback-echo"; then
-	case $progpath in
-	[\\/]* | [A-Za-z]:[\\/]*) qecho="$SHELL $progpath --fallback-echo";;
-	*) qecho="$SHELL `pwd`/$progpath --fallback-echo";;
-	esac
-	qecho=`$ECHO "X$qecho" | $Xsed -e "$sed_quote_subst"`
-      else
-	qecho=`$ECHO "X$ECHO" | $Xsed -e "$sed_quote_subst"`
-      fi
-
-      # Only actually do things if not in dry run mode.
-      $opt_dry_run || {
-	# win32 will think the script is a binary if it has
-	# a .exe suffix, so we strip it off here.
-	case $output in
-	  *.exe) func_stripname '' '.exe' "$output"
-	         output=$func_stripname_result ;;
-	esac
-	# test for cygwin because mv fails w/o .exe extensions
-	case $host in
-	  *cygwin*)
-	    exeext=.exe
-	    func_stripname '' '.exe' "$outputname"
-	    outputname=$func_stripname_result ;;
-	  *) exeext= ;;
-	esac
-	case $host in
-	  *cygwin* | *mingw* )
-	    func_dirname_and_basename "$output" "" "."
-	    output_name=$func_basename_result
-	    output_path=$func_dirname_result
-	    cwrappersource="$output_path/$objdir/lt-$output_name.c"
-	    cwrapper="$output_path/$output_name.exe"
-	    $RM $cwrappersource $cwrapper
-	    trap "$RM $cwrappersource $cwrapper; exit $EXIT_FAILURE" 1 2 15
-
-	    func_emit_cwrapperexe_src > $cwrappersource
-
-	    # The wrapper executable is built using the $host compiler,
-	    # because it contains $host paths and files. If cross-
-	    # compiling, it, like the target executable, must be
-	    # executed on the $host or under an emulation environment.
-	    $opt_dry_run || {
-	      $LTCC $LTCFLAGS -o $cwrapper $cwrappersource
-	      $STRIP $cwrapper
-	    }
-
-	    # Now, create the wrapper script for func_source use:
-	    func_ltwrapper_scriptname $cwrapper
-	    $RM $func_ltwrapper_scriptname_result
-	    trap "$RM $func_ltwrapper_scriptname_result; exit $EXIT_FAILURE" 1 2 15
-	    $opt_dry_run || {
-	      # note: this script will not be executed, so do not chmod.
-	      if test "x$build" = "x$host" ; then
-		$cwrapper --lt-dump-script > $func_ltwrapper_scriptname_result
-	      else
-		func_emit_wrapper no > $func_ltwrapper_scriptname_result
-	      fi
-	    }
-	  ;;
-	  * )
-	    $RM $output
-	    trap "$RM $output; exit $EXIT_FAILURE" 1 2 15
-
-	    func_emit_wrapper no > $output
-	    chmod +x $output
-	  ;;
-	esac
-      }
-      exit $EXIT_SUCCESS
-      ;;
-    esac
-
-    # See if we need to build an old-fashioned archive.
-    for oldlib in $oldlibs; do
-
-      if test "$build_libtool_libs" = convenience; then
-	oldobjs="$libobjs_save $symfileobj"
-	addlibs="$convenience"
-	build_libtool_libs=no
-      else
-	if test "$build_libtool_libs" = module; then
-	  oldobjs="$libobjs_save"
-	  build_libtool_libs=no
-	else
-	  oldobjs="$old_deplibs $non_pic_objects"
-	  if test "$preload" = yes && test -f "$symfileobj"; then
-	    oldobjs="$oldobjs $symfileobj"
-	  fi
-	fi
-	addlibs="$old_convenience"
-      fi
-
-      if test -n "$addlibs"; then
-	gentop="$output_objdir/${outputname}x"
-	generated="$generated $gentop"
-
-	func_extract_archives $gentop $addlibs
-	oldobjs="$oldobjs $func_extract_archives_result"
-      fi
-
-      # Do each command in the archive commands.
-      if test -n "$old_archive_from_new_cmds" && test "$build_libtool_libs" = yes; then
-	cmds=$old_archive_from_new_cmds
-      else
-
-	# Add any objects from preloaded convenience libraries
-	if test -n "$dlprefiles"; then
-	  gentop="$output_objdir/${outputname}x"
-	  generated="$generated $gentop"
-
-	  func_extract_archives $gentop $dlprefiles
-	  oldobjs="$oldobjs $func_extract_archives_result"
-	fi
-
-	# POSIX demands no paths to be encoded in archives.  We have
-	# to avoid creating archives with duplicate basenames if we
-	# might have to extract them afterwards, e.g., when creating a
-	# static archive out of a convenience library, or when linking
-	# the entirety of a libtool archive into another (currently
-	# not supported by libtool).
-	if (for obj in $oldobjs
-	    do
-	      func_basename "$obj"
-	      $ECHO "$func_basename_result"
-	    done | sort | sort -uc >/dev/null 2>&1); then
-	  :
-	else
-	  $ECHO "copying selected object files to avoid basename conflicts..."
-	  gentop="$output_objdir/${outputname}x"
-	  generated="$generated $gentop"
-	  func_mkdir_p "$gentop"
-	  save_oldobjs=$oldobjs
-	  oldobjs=
-	  counter=1
-	  for obj in $save_oldobjs
-	  do
-	    func_basename "$obj"
-	    objbase="$func_basename_result"
-	    case " $oldobjs " in
-	    " ") oldobjs=$obj ;;
-	    *[\ /]"$objbase "*)
-	      while :; do
-		# Make sure we don't pick an alternate name that also
-		# overlaps.
-		newobj=lt$counter-$objbase
-		func_arith $counter + 1
-		counter=$func_arith_result
-		case " $oldobjs " in
-		*[\ /]"$newobj "*) ;;
-		*) if test ! -f "$gentop/$newobj"; then break; fi ;;
-		esac
-	      done
-	      func_show_eval "ln $obj $gentop/$newobj || cp $obj $gentop/$newobj"
-	      oldobjs="$oldobjs $gentop/$newobj"
-	      ;;
-	    *) oldobjs="$oldobjs $obj" ;;
-	    esac
-	  done
-	fi
-	eval cmds=\"$old_archive_cmds\"
-
-	func_len " $cmds"
-	len=$func_len_result
-	if test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then
-	  cmds=$old_archive_cmds
-	else
-	  # the command line is too long to link in one step, link in parts
-	  func_verbose "using piecewise archive linking..."
-	  save_RANLIB=$RANLIB
-	  RANLIB=:
-	  objlist=
-	  concat_cmds=
-	  save_oldobjs=$oldobjs
-	  oldobjs=
-	  # Is there a better way of finding the last object in the list?
-	  for obj in $save_oldobjs
-	  do
-	    last_oldobj=$obj
-	  done
-	  eval test_cmds=\"$old_archive_cmds\"
-	  func_len " $test_cmds"
-	  len0=$func_len_result
-	  len=$len0
-	  for obj in $save_oldobjs
-	  do
-	    func_len " $obj"
-	    func_arith $len + $func_len_result
-	    len=$func_arith_result
-	    func_append objlist " $obj"
-	    if test "$len" -lt "$max_cmd_len"; then
-	      :
-	    else
-	      # the above command should be used before it gets too long
-	      oldobjs=$objlist
-	      if test "$obj" = "$last_oldobj" ; then
-		RANLIB=$save_RANLIB
-	      fi
-	      test -z "$concat_cmds" || concat_cmds=$concat_cmds~
-	      eval concat_cmds=\"\${concat_cmds}$old_archive_cmds\"
-	      objlist=
-	      len=$len0
-	    fi
-	  done
-	  RANLIB=$save_RANLIB
-	  oldobjs=$objlist
-	  if test "X$oldobjs" = "X" ; then
-	    eval cmds=\"\$concat_cmds\"
-	  else
-	    eval cmds=\"\$concat_cmds~\$old_archive_cmds\"
-	  fi
-	fi
-      fi
-      func_execute_cmds "$cmds" 'exit $?'
-    done
-
-    test -n "$generated" && \
-      func_show_eval "${RM}r$generated"
-
-    # Now create the libtool archive.
-    case $output in
-    *.la)
-      old_library=
-      test "$build_old_libs" = yes && old_library="$libname.$libext"
-      func_verbose "creating $output"
-
-      # Preserve any variables that may affect compiler behavior
-      for var in $variables_saved_for_relink; do
-	if eval test -z \"\${$var+set}\"; then
-	  relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command"
-	elif eval var_value=\$$var; test -z "$var_value"; then
-	  relink_command="$var=; export $var; $relink_command"
-	else
-	  func_quote_for_eval "$var_value"
-	  relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command"
-	fi
-      done
-      # Quote the link command for shipping.
-      relink_command="(cd `pwd`; $SHELL $progpath $preserve_args --mode=relink $libtool_args @inst_prefix_dir@)"
-      relink_command=`$ECHO "X$relink_command" | $Xsed -e "$sed_quote_subst"`
-      if test "$hardcode_automatic" = yes ; then
-	relink_command=
-      fi
-
-      # Only create the output if not a dry run.
-      $opt_dry_run || {
-	for installed in no yes; do
-	  if test "$installed" = yes; then
-	    if test -z "$install_libdir"; then
-	      break
-	    fi
-	    output="$output_objdir/$outputname"i
-	    # Replace all uninstalled libtool libraries with the installed ones
-	    newdependency_libs=
-	    for deplib in $dependency_libs; do
-	      case $deplib in
-	      *.la)
-		func_basename "$deplib"
-		name="$func_basename_result"
-		eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $deplib`
-		test -z "$libdir" && \
-		  func_fatal_error "\`$deplib' is not a valid libtool archive"
-		newdependency_libs="$newdependency_libs $libdir/$name"
-		;;
-	      *) newdependency_libs="$newdependency_libs $deplib" ;;
-	      esac
-	    done
-	    dependency_libs="$newdependency_libs"
-	    newdlfiles=
-
-	    for lib in $dlfiles; do
-	      case $lib in
-	      *.la)
-	        func_basename "$lib"
-		name="$func_basename_result"
-		eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $lib`
-		test -z "$libdir" && \
-		  func_fatal_error "\`$lib' is not a valid libtool archive"
-		newdlfiles="$newdlfiles $libdir/$name"
-		;;
-	      *) newdlfiles="$newdlfiles $lib" ;;
-	      esac
-	    done
-	    dlfiles="$newdlfiles"
-	    newdlprefiles=
-	    for lib in $dlprefiles; do
-	      case $lib in
-	      *.la)
-		# Only pass preopened files to the pseudo-archive (for
-		# eventual linking with the app. that links it) if we
-		# didn't already link the preopened objects directly into
-		# the library:
-		func_basename "$lib"
-		name="$func_basename_result"
-		eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $lib`
-		test -z "$libdir" && \
-		  func_fatal_error "\`$lib' is not a valid libtool archive"
-		newdlprefiles="$newdlprefiles $libdir/$name"
-		;;
-	      esac
-	    done
-	    dlprefiles="$newdlprefiles"
-	  else
-	    newdlfiles=
-	    for lib in $dlfiles; do
-	      case $lib in
-		[\\/]* | [A-Za-z]:[\\/]*) abs="$lib" ;;
-		*) abs=`pwd`"/$lib" ;;
-	      esac
-	      newdlfiles="$newdlfiles $abs"
-	    done
-	    dlfiles="$newdlfiles"
-	    newdlprefiles=
-	    for lib in $dlprefiles; do
-	      case $lib in
-		[\\/]* | [A-Za-z]:[\\/]*) abs="$lib" ;;
-		*) abs=`pwd`"/$lib" ;;
-	      esac
-	      newdlprefiles="$newdlprefiles $abs"
-	    done
-	    dlprefiles="$newdlprefiles"
-	  fi
-	  $RM $output
-	  # place dlname in correct position for cygwin
-	  tdlname=$dlname
-	  case $host,$output,$installed,$module,$dlname in
-	    *cygwin*,*lai,yes,no,*.dll | *mingw*,*lai,yes,no,*.dll | *cegcc*,*lai,yes,no,*.dll) tdlname=../bin/$dlname ;;
-	  esac
-	  $ECHO > $output "\
-# $outputname - a libtool library file
-# Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# The name that we can dlopen(3).
-dlname='$tdlname'
-
-# Names of this library.
-library_names='$library_names'
-
-# The name of the static archive.
-old_library='$old_library'
-
-# Linker flags that can not go in dependency_libs.
-inherited_linker_flags='$new_inherited_linker_flags'
-
-# Libraries that this one depends upon.
-dependency_libs='$dependency_libs'
-
-# Names of additional weak libraries provided by this library
-weak_library_names='$weak_libs'
-
-# Version information for $libname.
-current=$current
-age=$age
-revision=$revision
-
-# Is this an already installed library?
-installed=$installed
-
-# Should we warn about portability when linking against -modules?
-shouldnotlink=$module
-
-# Files to dlopen/dlpreopen
-dlopen='$dlfiles'
-dlpreopen='$dlprefiles'
-
-# Directory that this library needs to be installed in:
-libdir='$install_libdir'"
-	  if test "$installed" = no && test "$need_relink" = yes; then
-	    $ECHO >> $output "\
-relink_command=\"$relink_command\""
-	  fi
-	done
-      }
-
-      # Do a symbolic link so that the libtool archive can be found in
-      # LD_LIBRARY_PATH before the program is installed.
-      func_show_eval '( cd "$output_objdir" && $RM "$outputname" && $LN_S "../$outputname" "$outputname" )' 'exit $?'
-      ;;
-    esac
-    exit $EXIT_SUCCESS
-}
-
-{ test "$mode" = link || test "$mode" = relink; } &&
-    func_mode_link ${1+"$@"}
-
-
-# func_mode_uninstall arg...
-func_mode_uninstall ()
-{
-    $opt_debug
-    RM="$nonopt"
-    files=
-    rmforce=
-    exit_status=0
-
-    # This variable tells wrapper scripts just to set variables rather
-    # than running their programs.
-    libtool_install_magic="$magic"
-
-    for arg
-    do
-      case $arg in
-      -f) RM="$RM $arg"; rmforce=yes ;;
-      -*) RM="$RM $arg" ;;
-      *) files="$files $arg" ;;
-      esac
-    done
-
-    test -z "$RM" && \
-      func_fatal_help "you must specify an RM program"
-
-    rmdirs=
-
-    origobjdir="$objdir"
-    for file in $files; do
-      func_dirname "$file" "" "."
-      dir="$func_dirname_result"
-      if test "X$dir" = X.; then
-	objdir="$origobjdir"
-      else
-	objdir="$dir/$origobjdir"
-      fi
-      func_basename "$file"
-      name="$func_basename_result"
-      test "$mode" = uninstall && objdir="$dir"
-
-      # Remember objdir for removal later, being careful to avoid duplicates
-      if test "$mode" = clean; then
-	case " $rmdirs " in
-	  *" $objdir "*) ;;
-	  *) rmdirs="$rmdirs $objdir" ;;
-	esac
-      fi
-
-      # Don't error if the file doesn't exist and rm -f was used.
-      if { test -L "$file"; } >/dev/null 2>&1 ||
-	 { test -h "$file"; } >/dev/null 2>&1 ||
-	 test -f "$file"; then
-	:
-      elif test -d "$file"; then
-	exit_status=1
-	continue
-      elif test "$rmforce" = yes; then
-	continue
-      fi
-
-      rmfiles="$file"
-
-      case $name in
-      *.la)
-	# Possibly a libtool archive, so verify it.
-	if func_lalib_p "$file"; then
-	  func_source $dir/$name
-
-	  # Delete the libtool libraries and symlinks.
-	  for n in $library_names; do
-	    rmfiles="$rmfiles $objdir/$n"
-	  done
-	  test -n "$old_library" && rmfiles="$rmfiles $objdir/$old_library"
-
-	  case "$mode" in
-	  clean)
-	    case "  $library_names " in
-	    # "  " in the beginning catches empty $dlname
-	    *" $dlname "*) ;;
-	    *) rmfiles="$rmfiles $objdir/$dlname" ;;
-	    esac
-	    test -n "$libdir" && rmfiles="$rmfiles $objdir/$name $objdir/${name}i"
-	    ;;
-	  uninstall)
-	    if test -n "$library_names"; then
-	      # Do each command in the postuninstall commands.
-	      func_execute_cmds "$postuninstall_cmds" 'test "$rmforce" = yes || exit_status=1'
-	    fi
-
-	    if test -n "$old_library"; then
-	      # Do each command in the old_postuninstall commands.
-	      func_execute_cmds "$old_postuninstall_cmds" 'test "$rmforce" = yes || exit_status=1'
-	    fi
-	    # FIXME: should reinstall the best remaining shared library.
-	    ;;
-	  esac
-	fi
-	;;
-
-      *.lo)
-	# Possibly a libtool object, so verify it.
-	if func_lalib_p "$file"; then
-
-	  # Read the .lo file
-	  func_source $dir/$name
-
-	  # Add PIC object to the list of files to remove.
-	  if test -n "$pic_object" &&
-	     test "$pic_object" != none; then
-	    rmfiles="$rmfiles $dir/$pic_object"
-	  fi
-
-	  # Add non-PIC object to the list of files to remove.
-	  if test -n "$non_pic_object" &&
-	     test "$non_pic_object" != none; then
-	    rmfiles="$rmfiles $dir/$non_pic_object"
-	  fi
-	fi
-	;;
-
-      *)
-	if test "$mode" = clean ; then
-	  noexename=$name
-	  case $file in
-	  *.exe)
-	    func_stripname '' '.exe' "$file"
-	    file=$func_stripname_result
-	    func_stripname '' '.exe' "$name"
-	    noexename=$func_stripname_result
-	    # $file with .exe has already been added to rmfiles,
-	    # add $file without .exe
-	    rmfiles="$rmfiles $file"
-	    ;;
-	  esac
-	  # Do a test to see if this is a libtool program.
-	  if func_ltwrapper_p "$file"; then
-	    if func_ltwrapper_executable_p "$file"; then
-	      func_ltwrapper_scriptname "$file"
-	      relink_command=
-	      func_source $func_ltwrapper_scriptname_result
-	      rmfiles="$rmfiles $func_ltwrapper_scriptname_result"
-	    else
-	      relink_command=
-	      func_source $dir/$noexename
-	    fi
-
-	    # note $name still contains .exe if it was in $file originally
-	    # as does the version of $file that was added into $rmfiles
-	    rmfiles="$rmfiles $objdir/$name $objdir/${name}S.${objext}"
-	    if test "$fast_install" = yes && test -n "$relink_command"; then
-	      rmfiles="$rmfiles $objdir/lt-$name"
-	    fi
-	    if test "X$noexename" != "X$name" ; then
-	      rmfiles="$rmfiles $objdir/lt-${noexename}.c"
-	    fi
-	  fi
-	fi
-	;;
-      esac
-      func_show_eval "$RM $rmfiles" 'exit_status=1'
-    done
-    objdir="$origobjdir"
-
-    # Try to remove the ${objdir}s in the directories where we deleted files
-    for dir in $rmdirs; do
-      if test -d "$dir"; then
-	func_show_eval "rmdir $dir >/dev/null 2>&1"
-      fi
-    done
-
-    exit $exit_status
-}
-
-{ test "$mode" = uninstall || test "$mode" = clean; } &&
-    func_mode_uninstall ${1+"$@"}
-
-test -z "$mode" && {
-  help="$generic_help"
-  func_fatal_help "you must specify a MODE"
-}
-
-test -z "$exec_cmd" && \
-  func_fatal_help "invalid operation mode \`$mode'"
-
-if test -n "$exec_cmd"; then
-  eval exec "$exec_cmd"
-  exit $EXIT_FAILURE
-fi
-
-exit $exit_status
-
-
-# The TAGs below are defined such that we never get into a situation
-# in which we disable both kinds of libraries.  Given conflicting
-# choices, we go for a static library, that is the most portable,
-# since we can't tell whether shared libraries were disabled because
-# the user asked for that or because the platform doesn't support
-# them.  This is particularly important on AIX, because we don't
-# support having both static and shared libraries enabled at the same
-# time on that platform, so we default to a shared-only configuration.
-# If a disable-shared tag is given, we'll fallback to a static-only
-# configuration.  But we'll never go from static-only to shared-only.
-
-# ### BEGIN LIBTOOL TAG CONFIG: disable-shared
-build_libtool_libs=no
-build_old_libs=yes
-# ### END LIBTOOL TAG CONFIG: disable-shared
-
-# ### BEGIN LIBTOOL TAG CONFIG: disable-static
-build_old_libs=`case $build_libtool_libs in yes) echo no;; *) echo yes;; esac`
-# ### END LIBTOOL TAG CONFIG: disable-static
-
-# Local Variables:
-# mode:shell-script
-# sh-indentation:2
-# End:
-# vi:sw=2
-
diff --git a/deps/uv/src/unix/ev/missing b/deps/uv/src/unix/ev/missing
deleted file mode 100755
index fc54c64ec9..0000000000
--- a/deps/uv/src/unix/ev/missing
+++ /dev/null
@@ -1,336 +0,0 @@
-#! /bin/sh
-# Common stub for a few missing GNU programs while installing.
-# Copyright (C) 1996, 1997, 1999, 2000, 2002, 2003 Free Software Foundation, Inc.
-# Originally by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996.
-
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2, or (at your option)
-# any later version.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
-# 02111-1307, USA.
-
-# As a special exception to the GNU General Public License, if you
-# distribute this file as part of a program that contains a
-# configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
-
-if test $# -eq 0; then
-  echo 1>&2 "Try \`$0 --help' for more information"
-  exit 1
-fi
-
-run=:
-
-# In the cases where this matters, `missing' is being run in the
-# srcdir already.
-if test -f configure.ac; then
-  configure_ac=configure.ac
-else
-  configure_ac=configure.in
-fi
-
-case "$1" in
---run)
-  # Try to run requested program, and just exit if it succeeds.
-  run=
-  shift
-  "$@" && exit 0
-  ;;
-esac
-
-# If it does not exist, or fails to run (possibly an outdated version),
-# try to emulate it.
-case "$1" in
-
-  -h|--h|--he|--hel|--help)
-    echo "\
-$0 [OPTION]... PROGRAM [ARGUMENT]...
-
-Handle \`PROGRAM [ARGUMENT]...' for when PROGRAM is missing, or return an
-error status if there is no known handling for PROGRAM.
-
-Options:
-  -h, --help      display this help and exit
-  -v, --version   output version information and exit
-  --run           try to run the given command, and emulate it if it fails
-
-Supported PROGRAM values:
-  aclocal      touch file \`aclocal.m4'
-  autoconf     touch file \`configure'
-  autoheader   touch file \`config.h.in'
-  automake     touch all \`Makefile.in' files
-  bison        create \`y.tab.[ch]', if possible, from existing .[ch]
-  flex         create \`lex.yy.c', if possible, from existing .c
-  help2man     touch the output file
-  lex          create \`lex.yy.c', if possible, from existing .c
-  makeinfo     touch the output file
-  tar          try tar, gnutar, gtar, then tar without non-portable flags
-  yacc         create \`y.tab.[ch]', if possible, from existing .[ch]"
-    ;;
-
-  -v|--v|--ve|--ver|--vers|--versi|--versio|--version)
-    echo "missing 0.4 - GNU automake"
-    ;;
-
-  -*)
-    echo 1>&2 "$0: Unknown \`$1' option"
-    echo 1>&2 "Try \`$0 --help' for more information"
-    exit 1
-    ;;
-
-  aclocal*)
-    if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
-       # We have it, but it failed.
-       exit 1
-    fi
-
-    echo 1>&2 "\
-WARNING: \`$1' is missing on your system.  You should only need it if
-         you modified \`acinclude.m4' or \`${configure_ac}'.  You might want
-         to install the \`Automake' and \`Perl' packages.  Grab them from
-         any GNU archive site."
-    touch aclocal.m4
-    ;;
-
-  autoconf)
-    if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
-       # We have it, but it failed.
-       exit 1
-    fi
-
-    echo 1>&2 "\
-WARNING: \`$1' is missing on your system.  You should only need it if
-         you modified \`${configure_ac}'.  You might want to install the
-         \`Autoconf' and \`GNU m4' packages.  Grab them from any GNU
-         archive site."
-    touch configure
-    ;;
-
-  autoheader)
-    if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
-       # We have it, but it failed.
-       exit 1
-    fi
-
-    echo 1>&2 "\
-WARNING: \`$1' is missing on your system.  You should only need it if
-         you modified \`acconfig.h' or \`${configure_ac}'.  You might want
-         to install the \`Autoconf' and \`GNU m4' packages.  Grab them
-         from any GNU archive site."
-    files=`sed -n 's/^[ ]*A[CM]_CONFIG_HEADER(\([^)]*\)).*/\1/p' ${configure_ac}`
-    test -z "$files" && files="config.h"
-    touch_files=
-    for f in $files; do
-      case "$f" in
-      *:*) touch_files="$touch_files "`echo "$f" |
-				       sed -e 's/^[^:]*://' -e 's/:.*//'`;;
-      *) touch_files="$touch_files $f.in";;
-      esac
-    done
-    touch $touch_files
-    ;;
-
-  automake*)
-    if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
-       # We have it, but it failed.
-       exit 1
-    fi
-
-    echo 1>&2 "\
-WARNING: \`$1' is missing on your system.  You should only need it if
-         you modified \`Makefile.am', \`acinclude.m4' or \`${configure_ac}'.
-         You might want to install the \`Automake' and \`Perl' packages.
-         Grab them from any GNU archive site."
-    find . -type f -name Makefile.am -print |
-	   sed 's/\.am$/.in/' |
-	   while read f; do touch "$f"; done
-    ;;
-
-  autom4te)
-    if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
-       # We have it, but it failed.
-       exit 1
-    fi
-
-    echo 1>&2 "\
-WARNING: \`$1' is needed, and you do not seem to have it handy on your
-         system.  You might have modified some files without having the
-         proper tools for further handling them.
-         You can get \`$1' as part of \`Autoconf' from any GNU
-         archive site."
-
-    file=`echo "$*" | sed -n 's/.*--output[ =]*\([^ ]*\).*/\1/p'`
-    test -z "$file" && file=`echo "$*" | sed -n 's/.*-o[ ]*\([^ ]*\).*/\1/p'`
-    if test -f "$file"; then
-	touch $file
-    else
-	test -z "$file" || exec >$file
-	echo "#! /bin/sh"
-	echo "# Created by GNU Automake missing as a replacement of"
-	echo "#  $ $@"
-	echo "exit 0"
-	chmod +x $file
-	exit 1
-    fi
-    ;;
-
-  bison|yacc)
-    echo 1>&2 "\
-WARNING: \`$1' is missing on your system.  You should only need it if
-         you modified a \`.y' file.  You may need the \`Bison' package
-         in order for those modifications to take effect.  You can get
-         \`Bison' from any GNU archive site."
-    rm -f y.tab.c y.tab.h
-    if [ $# -ne 1 ]; then
-        eval LASTARG="\${$#}"
-	case "$LASTARG" in
-	*.y)
-	    SRCFILE=`echo "$LASTARG" | sed 's/y$/c/'`
-	    if [ -f "$SRCFILE" ]; then
-	         cp "$SRCFILE" y.tab.c
-	    fi
-	    SRCFILE=`echo "$LASTARG" | sed 's/y$/h/'`
-	    if [ -f "$SRCFILE" ]; then
-	         cp "$SRCFILE" y.tab.h
-	    fi
-	  ;;
-	esac
-    fi
-    if [ ! -f y.tab.h ]; then
-	echo >y.tab.h
-    fi
-    if [ ! -f y.tab.c ]; then
-	echo 'main() { return 0; }' >y.tab.c
-    fi
-    ;;
-
-  lex|flex)
-    echo 1>&2 "\
-WARNING: \`$1' is missing on your system.  You should only need it if
-         you modified a \`.l' file.  You may need the \`Flex' package
-         in order for those modifications to take effect.  You can get
-         \`Flex' from any GNU archive site."
-    rm -f lex.yy.c
-    if [ $# -ne 1 ]; then
-        eval LASTARG="\${$#}"
-	case "$LASTARG" in
-	*.l)
-	    SRCFILE=`echo "$LASTARG" | sed 's/l$/c/'`
-	    if [ -f "$SRCFILE" ]; then
-	         cp "$SRCFILE" lex.yy.c
-	    fi
-	  ;;
-	esac
-    fi
-    if [ ! -f lex.yy.c ]; then
-	echo 'main() { return 0; }' >lex.yy.c
-    fi
-    ;;
-
-  help2man)
-    if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
-       # We have it, but it failed.
-       exit 1
-    fi
-
-    echo 1>&2 "\
-WARNING: \`$1' is missing on your system.  You should only need it if
-	 you modified a dependency of a manual page.  You may need the
-	 \`Help2man' package in order for those modifications to take
-	 effect.  You can get \`Help2man' from any GNU archive site."
-
-    file=`echo "$*" | sed -n 's/.*-o \([^ ]*\).*/\1/p'`
-    if test -z "$file"; then
-	file=`echo "$*" | sed -n 's/.*--output=\([^ ]*\).*/\1/p'`
-    fi
-    if [ -f "$file" ]; then
-	touch $file
-    else
-	test -z "$file" || exec >$file
-	echo ".ab help2man is required to generate this page"
-	exit 1
-    fi
-    ;;
-
-  makeinfo)
-    if test -z "$run" && (makeinfo --version) > /dev/null 2>&1; then
-       # We have makeinfo, but it failed.
-       exit 1
-    fi
-
-    echo 1>&2 "\
-WARNING: \`$1' is missing on your system.  You should only need it if
-         you modified a \`.texi' or \`.texinfo' file, or any other file
-         indirectly affecting the aspect of the manual.  The spurious
-         call might also be the consequence of using a buggy \`make' (AIX,
-         DU, IRIX).  You might want to install the \`Texinfo' package or
-         the \`GNU make' package.  Grab either from any GNU archive site."
-    file=`echo "$*" | sed -n 's/.*-o \([^ ]*\).*/\1/p'`
-    if test -z "$file"; then
-      file=`echo "$*" | sed 's/.* \([^ ]*\) *$/\1/'`
-      file=`sed -n '/^@setfilename/ { s/.* \([^ ]*\) *$/\1/; p; q; }' $file`
-    fi
-    touch $file
-    ;;
-
-  tar)
-    shift
-    if test -n "$run"; then
-      echo 1>&2 "ERROR: \`tar' requires --run"
-      exit 1
-    fi
-
-    # We have already tried tar in the generic part.
-    # Look for gnutar/gtar before invocation to avoid ugly error
-    # messages.
-    if (gnutar --version > /dev/null 2>&1); then
-       gnutar "$@" && exit 0
-    fi
-    if (gtar --version > /dev/null 2>&1); then
-       gtar "$@" && exit 0
-    fi
-    firstarg="$1"
-    if shift; then
-	case "$firstarg" in
-	*o*)
-	    firstarg=`echo "$firstarg" | sed s/o//`
-	    tar "$firstarg" "$@" && exit 0
-	    ;;
-	esac
-	case "$firstarg" in
-	*h*)
-	    firstarg=`echo "$firstarg" | sed s/h//`
-	    tar "$firstarg" "$@" && exit 0
-	    ;;
-	esac
-    fi
-
-    echo 1>&2 "\
-WARNING: I can't seem to be able to run \`tar' with the given arguments.
-         You may want to install GNU tar or Free paxutils, or check the
-         command line arguments."
-    exit 1
-    ;;
-
-  *)
-    echo 1>&2 "\
-WARNING: \`$1' is needed, and you do not seem to have it handy on your
-         system.  You might have modified some files without having the
-         proper tools for further handling them.  Check the \`README' file,
-         it often tells you about the needed prerequisites for installing
-         this package.  You may also peek at any GNU archive site, in case
-         some other package would contain this missing \`$1' program."
-    exit 1
-    ;;
-esac
-
-exit 0
diff --git a/deps/uv/src/unix/ev/mkinstalldirs b/deps/uv/src/unix/ev/mkinstalldirs
deleted file mode 100755
index d2d5f21b61..0000000000
--- a/deps/uv/src/unix/ev/mkinstalldirs
+++ /dev/null
@@ -1,111 +0,0 @@
-#! /bin/sh
-# mkinstalldirs --- make directory hierarchy
-# Author: Noah Friedman <friedman@prep.ai.mit.edu>
-# Created: 1993-05-16
-# Public domain
-
-errstatus=0
-dirmode=""
-
-usage="\
-Usage: mkinstalldirs [-h] [--help] [-m mode] dir ..."
-
-# process command line arguments
-while test $# -gt 0 ; do
-  case $1 in
-    -h | --help | --h*)         # -h for help
-      echo "$usage" 1>&2
-      exit 0
-      ;;
-    -m)                         # -m PERM arg
-      shift
-      test $# -eq 0 && { echo "$usage" 1>&2; exit 1; }
-      dirmode=$1
-      shift
-      ;;
-    --)                         # stop option processing
-      shift
-      break
-      ;;
-    -*)                         # unknown option
-      echo "$usage" 1>&2
-      exit 1
-      ;;
-    *)                          # first non-opt arg
-      break
-      ;;
-  esac
-done
-
-for file
-do
-  if test -d "$file"; then
-    shift
-  else
-    break
-  fi
-done
-
-case $# in
-  0) exit 0 ;;
-esac
-
-case $dirmode in
-  '')
-    if mkdir -p -- . 2>/dev/null; then
-      echo "mkdir -p -- $*"
-      exec mkdir -p -- "$@"
-    fi
-    ;;
-  *)
-    if mkdir -m "$dirmode" -p -- . 2>/dev/null; then
-      echo "mkdir -m $dirmode -p -- $*"
-      exec mkdir -m "$dirmode" -p -- "$@"
-    fi
-    ;;
-esac
-
-for file
-do
-  set fnord `echo ":$file" | sed -ne 's/^:\//#/;s/^://;s/\// /g;s/^#/\//;p'`
-  shift
-
-  pathcomp=
-  for d
-  do
-    pathcomp="$pathcomp$d"
-    case $pathcomp in
-      -*) pathcomp=./$pathcomp ;;
-    esac
-
-    if test ! -d "$pathcomp"; then
-      echo "mkdir $pathcomp"
-
-      mkdir "$pathcomp" || lasterr=$?
-
-      if test ! -d "$pathcomp"; then
-  	errstatus=$lasterr
-      else
-  	if test ! -z "$dirmode"; then
-	  echo "chmod $dirmode $pathcomp"
-    	  lasterr=""
-  	  chmod "$dirmode" "$pathcomp" || lasterr=$?
-
-  	  if test ! -z "$lasterr"; then
-  	    errstatus=$lasterr
-  	  fi
-  	fi
-      fi
-    fi
-
-    pathcomp="$pathcomp/"
-  done
-done
-
-exit $errstatus
-
-# Local Variables:
-# mode: shell-script
-# sh-indentation: 2
-# End:
-# mkinstalldirs ends here
diff --git a/deps/uv/src/unix/freebsd.c b/deps/uv/src/unix/freebsd.c
index 76f2793ade..6619893b9b 100644
--- a/deps/uv/src/unix/freebsd.c
+++ b/deps/uv/src/unix/freebsd.c
@@ -55,7 +55,7 @@ static char *process_title;
 
 
 int uv__platform_loop_init(uv_loop_t* loop, int default_loop) {
-  return 0;
+  return uv__kqueue_init(loop);
 }
 
 
diff --git a/deps/uv/src/unix/fsevents.c b/deps/uv/src/unix/fsevents.c
index 02565f3a1d..b6d274675a 100644
--- a/deps/uv/src/unix/fsevents.c
+++ b/deps/uv/src/unix/fsevents.c
@@ -81,12 +81,14 @@ void uv__fsevents_cb(uv_async_t* cb, int status) {
   handle = cb->data;
 
   UV__FSEVENTS_WALK(handle, {
-    if (handle->fd != -1)
+    if (handle->event_watcher.fd != -1)
       handle->cb(handle, event->path[0] ? event->path : NULL, event->events, 0);
   });
 
-  if ((handle->flags & (UV_CLOSING | UV_CLOSED)) == 0 && handle->fd == -1)
+  if ((handle->flags & (UV_CLOSING | UV_CLOSED)) == 0 &&
+      handle->event_watcher.fd == -1) {
     uv__fsevents_close(handle);
+  }
 }
 
 
diff --git a/deps/uv/src/unix/internal.h b/deps/uv/src/unix/internal.h
index c418038f6e..4369cd40d5 100644
--- a/deps/uv/src/unix/internal.h
+++ b/deps/uv/src/unix/internal.h
@@ -81,9 +81,35 @@
   }                                                                           \
   while (0)
 
-#define UV__IO_READ  EV_READ
-#define UV__IO_WRITE EV_WRITE
-#define UV__IO_ERROR EV_ERROR
+#if defined(__linux__)
+# define UV__POLLIN   UV__EPOLLIN
+# define UV__POLLOUT  UV__EPOLLOUT
+# define UV__POLLERR  UV__EPOLLERR
+# define UV__POLLHUP  UV__EPOLLHUP
+#endif
+
+#if defined(__sun)
+# define UV__POLLIN   POLLIN
+# define UV__POLLOUT  POLLOUT
+# define UV__POLLERR  POLLERR
+# define UV__POLLHUP  POLLHUP
+#endif
+
+#ifndef UV__POLLIN
+# define UV__POLLIN   1
+#endif
+
+#ifndef UV__POLLOUT
+# define UV__POLLOUT  2
+#endif
+
+#ifndef UV__POLLERR
+# define UV__POLLERR  4
+#endif
+
+#ifndef UV__POLLHUP
+# define UV__POLLHUP  8
+#endif
 
 /* handle flags */
 enum {
@@ -117,12 +143,12 @@ int uv__dup(int fd);
 int uv_async_stop(uv_async_t* handle);
 void uv__make_close_pending(uv_handle_t* handle);
 
-void uv__io_init(uv__io_t* handle, uv__io_cb cb, int fd, int events);
-void uv__io_set(uv__io_t* handle, uv__io_cb cb, int fd, int events);
-void uv__io_start(uv_loop_t* loop, uv__io_t* handle);
-void uv__io_stop(uv_loop_t* loop, uv__io_t* handle);
-void uv__io_feed(uv_loop_t* loop, uv__io_t* handle, int event);
-int uv__io_active(uv__io_t* handle);
+void uv__io_init(uv__io_t* w, uv__io_cb cb, int fd);
+void uv__io_start(uv_loop_t* loop, uv__io_t* w, unsigned int events);
+void uv__io_stop(uv_loop_t* loop, uv__io_t* w, unsigned int events);
+void uv__io_feed(uv_loop_t* loop, uv__io_t* w);
+int uv__io_active(const uv__io_t* w, unsigned int events);
+void uv__io_poll(uv_loop_t* loop, int timeout); /* in milliseconds or -1 */
 
 /* loop */
 int uv__loop_init(uv_loop_t* loop, int default_loop);
@@ -140,13 +166,13 @@ void uv__stream_init(uv_loop_t* loop, uv_stream_t* stream,
     uv_handle_type type);
 int uv__stream_open(uv_stream_t*, int fd, int flags);
 void uv__stream_destroy(uv_stream_t* stream);
-void uv__server_io(uv_loop_t* loop, uv__io_t* watcher, int events);
+void uv__server_io(uv_loop_t* loop, uv__io_t* w, unsigned int events);
 int uv__accept(int sockfd);
 
 /* tcp */
 int uv_tcp_listen(uv_tcp_t* tcp, int backlog, uv_connection_cb cb);
-int uv__tcp_nodelay(uv_tcp_t* handle, int enable);
-int uv__tcp_keepalive(uv_tcp_t* handle, int enable, unsigned int delay);
+int uv__tcp_nodelay(int fd, int on);
+int uv__tcp_keepalive(int fd, int on, unsigned int delay);
 
 /* pipe */
 int uv_pipe_listen(uv_pipe_t* handle, int backlog, uv_connection_cb cb);
@@ -168,6 +194,7 @@ void uv__work_submit(uv_loop_t* loop,
 void uv__work_done(uv_async_t* handle, int status);
 
 /* platform specific */
+int uv__kqueue_init(uv_loop_t* loop);
 int uv__platform_loop_init(uv_loop_t* loop, int default_loop);
 void uv__platform_loop_delete(uv_loop_t* loop);
 
diff --git a/deps/uv/src/unix/kqueue.c b/deps/uv/src/unix/kqueue.c
index 46b9da2a27..73ee696e30 100644
--- a/deps/uv/src/unix/kqueue.c
+++ b/deps/uv/src/unix/kqueue.c
@@ -29,57 +29,254 @@
 #include <sys/sysctl.h>
 #include <sys/types.h>
 #include <sys/event.h>
+#include <sys/time.h>
 #include <unistd.h>
 #include <fcntl.h>
 #include <time.h>
 
-static void uv__fs_event(EV_P_ ev_io* w, int revents);
+static void uv__fs_event(uv_loop_t* loop, uv__io_t* w, unsigned int fflags);
 
 
-static void uv__fs_event_start(uv_fs_event_t* handle) {
-  ev_io_init(&handle->event_watcher,
-             uv__fs_event,
-             handle->fd,
-             EV_LIBUV_KQUEUE_HACK);
-  ev_io_start(handle->loop->ev, &handle->event_watcher);
+int uv__kqueue_init(uv_loop_t* loop) {
+  loop->backend_fd = kqueue();
+
+  if (loop->backend_fd == -1)
+    return -1;
+
+  uv__cloexec(loop->backend_fd, 1);
+
+  return 0;
 }
 
 
-static void uv__fs_event_stop(uv_fs_event_t* handle) {
-  ev_io_stop(handle->loop->ev, &handle->event_watcher);
+void uv__io_poll(uv_loop_t* loop, int timeout) {
+  struct kevent events[1024];
+  struct kevent* ev;
+  struct timespec spec;
+  unsigned int nevents;
+  unsigned int revents;
+  ngx_queue_t* q;
+  uint64_t base;
+  uint64_t diff;
+  uv__io_t* w;
+  int filter;
+  int fflags;
+  int count;
+  int nfds;
+  int fd;
+  int op;
+  int i;
+
+  if (loop->nfds == 0) {
+    assert(ngx_queue_empty(&loop->watcher_queue));
+    return;
+  }
+
+  nevents = 0;
+
+  while (!ngx_queue_empty(&loop->watcher_queue)) {
+    q = ngx_queue_head(&loop->watcher_queue);
+    ngx_queue_remove(q);
+    ngx_queue_init(q);
+
+    w = ngx_queue_data(q, uv__io_t, watcher_queue);
+    assert(w->pevents != 0);
+    assert(w->fd >= 0);
+    assert(w->fd < (int) loop->nwatchers);
+
+    /* Filter out no-op changes. This is for compatibility with the event ports
+     * backend, see uv__io_start().
+     */
+    if (w->events == w->pevents)
+      continue;
+
+    if ((w->events & UV__POLLIN) == 0 && (w->pevents & UV__POLLIN) != 0) {
+      filter = EVFILT_READ;
+      fflags = 0;
+      op = EV_ADD;
+
+      if (w->cb == uv__fs_event) {
+        filter = EVFILT_VNODE;
+        fflags = NOTE_ATTRIB | NOTE_WRITE  | NOTE_RENAME
+               | NOTE_DELETE | NOTE_EXTEND | NOTE_REVOKE;
+        op = EV_ADD | EV_ONESHOT; /* Stop the event from firing repeatedly. */
+      }
+
+      EV_SET(events + nevents, w->fd, filter, op, fflags, 0, 0);
+
+      if (++nevents == ARRAY_SIZE(events)) {
+        if (kevent(loop->backend_fd, events, nevents, NULL, 0, NULL))
+          abort();
+        nevents = 0;
+      }
+    }
+
+    if ((w->events & UV__POLLOUT) == 0 && (w->pevents & UV__POLLOUT) != 0) {
+      EV_SET(events + nevents, w->fd, EVFILT_WRITE, EV_ADD, 0, 0, 0);
+
+      if (++nevents == ARRAY_SIZE(events)) {
+        if (kevent(loop->backend_fd, events, nevents, NULL, 0, NULL))
+          abort();
+        nevents = 0;
+      }
+    }
+
+    w->events = w->pevents;
+  }
+
+  assert(timeout >= -1);
+  base = loop->time;
+  count = 48; /* Benchmarks suggest this gives the best throughput. */
+
+  for (;; nevents = 0) {
+    if (timeout != -1) {
+      spec.tv_sec = timeout / 1000;
+      spec.tv_nsec = (timeout % 1000) * 1000000;
+    }
+
+    nfds = kevent(loop->backend_fd,
+                  events,
+                  nevents,
+                  events,
+                  ARRAY_SIZE(events),
+                  timeout == -1 ? NULL : &spec);
+
+    if (nfds == 0) {
+      assert(timeout != -1);
+      return;
+    }
+
+    if (nfds == -1) {
+      if (errno != EINTR)
+        abort();
+
+      if (timeout == 0)
+        return;
+
+      if (timeout == -1)
+        continue;
+
+      /* Interrupted by a signal. Update timeout and poll again. */
+      goto update_timeout;
+    }
+
+    nevents = 0;
+
+    for (i = 0; i < nfds; i++) {
+      ev = events + i;
+      fd = ev->ident;
+      w = loop->watchers[fd];
+
+      if (w == NULL) {
+        /* File descriptor that we've stopped watching, disarm it. */
+        /* TODO batch up */
+        struct kevent events[1];
+
+        EV_SET(events + 0, fd, ev->filter, EV_DELETE, 0, 0, 0);
+        if (kevent(loop->backend_fd, events, 1, NULL, 0, NULL))
+          if (errno != EBADF && errno != ENOENT)
+            abort();
+
+        continue;
+      }
+
+      if (ev->filter == EVFILT_VNODE) {
+        assert(w->events == UV__POLLIN);
+        assert(w->pevents == UV__POLLIN);
+        w->cb(loop, w, ev->fflags); /* XXX always uv__fs_event() */
+        nevents++;
+        continue;
+      }
+
+      revents = 0;
+
+      if (ev->filter == EVFILT_READ) {
+        if (w->events & UV__POLLIN)
+          revents |= UV__POLLIN;
+        else {
+          /* TODO batch up */
+          struct kevent events[1];
+          EV_SET(events + 0, fd, ev->filter, EV_DELETE, 0, 0, 0);
+          if (kevent(loop->backend_fd, events, 1, NULL, 0, NULL)) abort();
+        }
+      }
+
+      if (ev->filter == EVFILT_WRITE) {
+        if (w->events & UV__POLLOUT)
+          revents |= UV__POLLOUT;
+        else {
+          /* TODO batch up */
+          struct kevent events[1];
+          EV_SET(events + 0, fd, ev->filter, EV_DELETE, 0, 0, 0);
+          if (kevent(loop->backend_fd, events, 1, NULL, 0, NULL)) abort();
+        }
+      }
+
+      if (ev->flags & EV_ERROR)
+        revents |= UV__POLLERR;
+
+      if (revents == 0)
+        continue;
+
+      w->cb(loop, w, revents);
+      nevents++;
+    }
+
+    if (nevents != 0) {
+      if (nfds == ARRAY_SIZE(events) && --count != 0) {
+        /* Poll for more events but don't block this time. */
+        timeout = 0;
+        continue;
+      }
+      return;
+    }
+
+    if (timeout == 0)
+      return;
+
+    if (timeout == -1)
+      continue;
+
+update_timeout:
+    assert(timeout > 0);
+
+    diff = uv_hrtime() / 1000000;
+    assert(diff >= base);
+    diff -= base;
+
+    if (diff >= (uint64_t) timeout)
+      return;
+
+    timeout -= diff;
+  }
 }
 
 
-static void uv__fs_event(EV_P_ ev_io* w, int revents) {
+static void uv__fs_event(uv_loop_t* loop, uv__io_t* w, unsigned int fflags) {
   uv_fs_event_t* handle;
+  struct kevent ev;
   int events;
 
-  assert(revents == EV_LIBUV_KQUEUE_HACK);
-
   handle = container_of(w, uv_fs_event_t, event_watcher);
 
-  if (handle->fflags & (NOTE_ATTRIB | NOTE_EXTEND))
+  if (fflags & (NOTE_ATTRIB | NOTE_EXTEND))
     events = UV_CHANGE;
   else
     events = UV_RENAME;
 
   handle->cb(handle, NULL, events, 0);
 
-  if (handle->fd == -1)
+  if (handle->event_watcher.fd == -1)
     return;
 
-  /* File watcher operates in one-shot mode, re-arm it. */
-  uv__fs_event_stop(handle);
-  uv__fs_event_start(handle);
-}
-
+  /* Watcher operates in one-shot mode, re-arm it. */
+  fflags = NOTE_ATTRIB | NOTE_WRITE  | NOTE_RENAME
+         | NOTE_DELETE | NOTE_EXTEND | NOTE_REVOKE;
 
-/* Called by libev, don't touch. */
-void uv__kqueue_hack(EV_P_ int fflags, ev_io *w) {
-  uv_fs_event_t* handle;
+  EV_SET(&ev, w->fd, EVFILT_VNODE, EV_ADD | EV_ONESHOT, fflags, 0, 0);
 
-  handle = container_of(w, uv_fs_event_t, event_watcher);
-  handle->fflags = fflags;
+  if (kevent(loop->backend_fd, &ev, 1, NULL, 0, NULL))
+    abort();
 }
 
 
@@ -88,10 +285,10 @@ int uv_fs_event_init(uv_loop_t* loop,
                      const char* filename,
                      uv_fs_event_cb cb,
                      int flags) {
-  int fd;
 #if defined(__APPLE__)
   struct stat statbuf;
 #endif /* defined(__APPLE__) */
+  int fd;
 
   /* TODO open asynchronously - but how do we report back errors? */
   if ((fd = open(filename, O_RDONLY)) == -1) {
@@ -101,10 +298,9 @@ int uv_fs_event_init(uv_loop_t* loop,
 
   uv__handle_init(loop, (uv_handle_t*)handle, UV_FS_EVENT);
   uv__handle_start(handle); /* FIXME shouldn't start automatically */
+  uv__io_init(&handle->event_watcher, uv__fs_event, fd);
   handle->filename = strdup(filename);
-  handle->fflags = 0;
   handle->cb = cb;
-  handle->fd = fd;
 
 #if defined(__APPLE__)
   /* Nullify field to perform checks later */
@@ -124,7 +320,7 @@ int uv_fs_event_init(uv_loop_t* loop,
 fallback:
 #endif /* defined(__APPLE__) */
 
-  uv__fs_event_start(handle);
+  uv__io_start(loop, &handle->event_watcher, UV__POLLIN);
 
   return 0;
 }
@@ -133,13 +329,16 @@ fallback:
 void uv__fs_event_close(uv_fs_event_t* handle) {
 #if defined(__APPLE__)
   if (uv__fsevents_close(handle))
-    uv__fs_event_stop(handle);
+    uv__io_stop(handle->loop, &handle->event_watcher, UV__POLLIN);
 #else
-  uv__fs_event_stop(handle);
+  uv__io_stop(handle->loop, &handle->event_watcher, UV__POLLIN);
 #endif /* defined(__APPLE__) */
 
   uv__handle_stop(handle);
+
   free(handle->filename);
-  close(handle->fd);
-  handle->fd = -1;
+  handle->filename = NULL;
+
+  close(handle->event_watcher.fd);
+  handle->event_watcher.fd = -1;
 }
diff --git a/deps/uv/src/unix/linux/inotify.c b/deps/uv/src/unix/linux/inotify.c
index 97231db9a8..2edf221c14 100644
--- a/deps/uv/src/unix/linux/inotify.c
+++ b/deps/uv/src/unix/linux/inotify.c
@@ -64,7 +64,9 @@ static int compare_watchers(const struct watcher_list* a,
 RB_GENERATE_STATIC(watcher_root, watcher_list, entry, compare_watchers)
 
 
-static void uv__inotify_read(uv_loop_t* loop, uv__io_t* w, int revents);
+static void uv__inotify_read(uv_loop_t* loop,
+                             uv__io_t* w,
+                             unsigned int revents);
 
 
 static int new_inotify_fd(void) {
@@ -98,11 +100,8 @@ static int init_inotify(uv_loop_t* loop) {
     return -1;
   }
 
-  uv__io_init(&loop->inotify_read_watcher,
-              uv__inotify_read,
-              loop->inotify_fd,
-              UV__IO_READ);
-  uv__io_start(loop, &loop->inotify_read_watcher);
+  uv__io_init(&loop->inotify_read_watcher, uv__inotify_read, loop->inotify_fd);
+  uv__io_start(loop, &loop->inotify_read_watcher, UV__POLLIN);
 
   return 0;
 }
@@ -115,7 +114,9 @@ static struct watcher_list* find_watcher(uv_loop_t* loop, int wd) {
 }
 
 
-static void uv__inotify_read(uv_loop_t* loop, uv__io_t* dummy, int events) {
+static void uv__inotify_read(uv_loop_t* loop,
+                             uv__io_t* dummy,
+                             unsigned int events) {
   const struct uv__inotify_event* e;
   struct watcher_list* w;
   uv_fs_event_t* h;
diff --git a/deps/uv/src/unix/linux/linux-core.c b/deps/uv/src/unix/linux/linux-core.c
index e92869e3b0..95df66766c 100644
--- a/deps/uv/src/unix/linux/linux-core.c
+++ b/deps/uv/src/unix/linux/linux-core.c
@@ -78,20 +78,183 @@ static void free_args_mem(void) {
 
 
 int uv__platform_loop_init(uv_loop_t* loop, int default_loop) {
-  loop->inotify_watchers = NULL;
+  int fd;
+
+  fd = uv__epoll_create1(UV__EPOLL_CLOEXEC);
+
+  /* epoll_create1() can fail either because it's not implemented (old kernel)
+   * or because it doesn't understand the EPOLL_CLOEXEC flag.
+   */
+  if (fd == -1 && (errno == ENOSYS || errno == EINVAL)) {
+    fd = uv__epoll_create(256);
+
+    if (fd != -1)
+      uv__cloexec(fd, 1);
+  }
+
+  loop->backend_fd = fd;
   loop->inotify_fd = -1;
+  loop->inotify_watchers = NULL;
+
+  if (fd == -1)
+    return -1;
+
   return 0;
 }
 
 
 void uv__platform_loop_delete(uv_loop_t* loop) {
   if (loop->inotify_fd == -1) return;
-  uv__io_stop(loop, &loop->inotify_read_watcher);
+  uv__io_stop(loop, &loop->inotify_read_watcher, UV__POLLIN);
   close(loop->inotify_fd);
   loop->inotify_fd = -1;
 }
 
 
+void uv__io_poll(uv_loop_t* loop, int timeout) {
+  struct uv__epoll_event events[1024];
+  struct uv__epoll_event* pe;
+  struct uv__epoll_event e;
+  ngx_queue_t* q;
+  uv__io_t* w;
+  uint64_t base;
+  uint64_t diff;
+  int nevents;
+  int count;
+  int nfds;
+  int fd;
+  int op;
+  int i;
+
+  if (loop->nfds == 0) {
+    assert(ngx_queue_empty(&loop->watcher_queue));
+    return;
+  }
+
+  while (!ngx_queue_empty(&loop->watcher_queue)) {
+    q = ngx_queue_head(&loop->watcher_queue);
+    ngx_queue_remove(q);
+    ngx_queue_init(q);
+
+    w = ngx_queue_data(q, uv__io_t, watcher_queue);
+    assert(w->pevents != 0);
+    assert(w->fd >= 0);
+    assert(w->fd < (int) loop->nwatchers);
+
+    /* Filter out no-op changes. This is for compatibility with the event ports
+     * backend, see the comment in uv__io_start().
+     */
+    if (w->events == w->pevents)
+      continue;
+
+    e.events = w->pevents;
+    e.data = w->fd;
+
+    if (w->events == 0)
+      op = UV__EPOLL_CTL_ADD;
+    else
+      op = UV__EPOLL_CTL_MOD;
+
+    /* XXX Future optimization: do EPOLL_CTL_MOD lazily if we stop watching
+     * events, skip the syscall and squelch the events after epoll_wait().
+     */
+    if (uv__epoll_ctl(loop->backend_fd, op, w->fd, &e)) {
+      if (errno != EEXIST)
+        abort();
+
+      assert(op == UV__EPOLL_CTL_ADD);
+
+      /* We've reactivated a file descriptor that's been watched before. */
+      if (uv__epoll_ctl(loop->backend_fd, UV__EPOLL_CTL_MOD, w->fd, &e))
+        abort();
+    }
+
+    w->events = w->pevents;
+  }
+
+  assert(timeout >= -1);
+  base = loop->time;
+  count = 48; /* Benchmarks suggest this gives the best throughput. */
+
+  for (;;) {
+    nfds = uv__epoll_wait(loop->backend_fd,
+                          events,
+                          ARRAY_SIZE(events),
+                          timeout);
+
+    if (nfds == 0) {
+      assert(timeout != -1);
+      return;
+    }
+
+    if (nfds == -1) {
+      if (errno != EINTR)
+        abort();
+
+      if (timeout == -1)
+        continue;
+
+      if (timeout == 0)
+        return;
+
+      /* Interrupted by a signal. Update timeout and poll again. */
+      goto update_timeout;
+    }
+
+    nevents = 0;
+
+    for (i = 0; i < nfds; i++) {
+      pe = events + i;
+      fd = pe->data;
+
+      assert(fd >= 0);
+      assert((unsigned) fd < loop->nwatchers);
+
+      w = loop->watchers[fd];
+
+      if (w == NULL) {
+        /* File descriptor that we've stopped watching, disarm it. */
+        if (uv__epoll_ctl(loop->backend_fd, UV__EPOLL_CTL_DEL, fd, pe))
+          if (errno != EBADF && errno != ENOENT)
+            abort();
+
+        continue;
+      }
+
+      w->cb(loop, w, pe->events);
+      nevents++;
+    }
+
+    if (nevents != 0) {
+      if (nfds == ARRAY_SIZE(events) && --count != 0) {
+        /* Poll for more events but don't block this time. */
+        timeout = 0;
+        continue;
+      }
+      return;
+    }
+
+    if (timeout == 0)
+      return;
+
+    if (timeout == -1)
+      continue;
+
+update_timeout:
+    assert(timeout > 0);
+
+    diff = uv_hrtime() / 1000000;
+    assert(diff >= base);
+    diff -= base;
+
+    if (diff >= (uint64_t) timeout)
+      return;
+
+    timeout -= diff;
+  }
+}
+
+
 uint64_t uv_hrtime() {
   struct timespec ts;
   clock_gettime(CLOCK_MONOTONIC, &ts);
diff --git a/deps/uv/src/unix/loop.c b/deps/uv/src/unix/loop.c
index c70513f3a9..e63f12a622 100644
--- a/deps/uv/src/unix/loop.c
+++ b/deps/uv/src/unix/loop.c
@@ -29,16 +29,9 @@
 
 int uv__loop_init(uv_loop_t* loop, int default_loop) {
   unsigned int i;
-  int flags;
 
   uv__signal_global_once_init();
 
-#if HAVE_KQUEUE
-  flags = EVBACKEND_KQUEUE;
-#else
-  flags = EVFLAG_AUTO;
-#endif
-
   memset(loop, 0, sizeof(*loop));
   RB_INIT(&loop->timer_handles);
   ngx_queue_init(&loop->wq);
@@ -48,15 +41,24 @@ int uv__loop_init(uv_loop_t* loop, int default_loop) {
   ngx_queue_init(&loop->check_handles);
   ngx_queue_init(&loop->prepare_handles);
   ngx_queue_init(&loop->handle_queue);
+
+  loop->nfds = 0;
+  loop->watchers = NULL;
+  loop->nwatchers = 0;
+  ngx_queue_init(&loop->pending_queue);
+  ngx_queue_init(&loop->watcher_queue);
+
   loop->closing_handles = NULL;
   loop->time = uv_hrtime() / 1000000;
   loop->async_pipefd[0] = -1;
   loop->async_pipefd[1] = -1;
   loop->signal_pipefd[0] = -1;
   loop->signal_pipefd[1] = -1;
+  loop->backend_fd = -1;
   loop->emfile_fd = -1;
-  loop->ev = (default_loop ? ev_default_loop : ev_loop_new)(flags);
-  ev_set_userdata(loop->ev, loop);
+
+  if (uv__platform_loop_init(loop, default_loop))
+    return -1;
 
   uv_signal_init(loop, &loop->child_watcher);
   uv__handle_unref(&loop->child_watcher);
@@ -74,9 +76,6 @@ int uv__loop_init(uv_loop_t* loop, int default_loop) {
   uv__handle_unref(&loop->wq_async);
   loop->wq_async.flags |= UV__HANDLE_INTERNAL;
 
-  if (uv__platform_loop_init(loop, default_loop))
-    return -1;
-
   return 0;
 }
 
@@ -84,7 +83,6 @@ int uv__loop_init(uv_loop_t* loop, int default_loop) {
 void uv__loop_delete(uv_loop_t* loop) {
   uv__signal_loop_cleanup(loop);
   uv__platform_loop_delete(loop);
-  ev_loop_destroy(loop->ev);
 
   if (loop->async_pipefd[0] != -1) {
     close(loop->async_pipefd[0]);
@@ -101,8 +99,23 @@ void uv__loop_delete(uv_loop_t* loop) {
     loop->emfile_fd = -1;
   }
 
+  if (loop->backend_fd != -1) {
+    close(loop->backend_fd);
+    loop->backend_fd = -1;
+  }
+
   uv_mutex_lock(&loop->wq_mutex);
   assert(ngx_queue_empty(&loop->wq) && "thread pool work queue not empty!");
   uv_mutex_unlock(&loop->wq_mutex);
   uv_mutex_destroy(&loop->wq_mutex);
+
+#if 0
+  assert(ngx_queue_empty(&loop->pending_queue));
+  assert(ngx_queue_empty(&loop->watcher_queue));
+  assert(loop->nfds == 0);
+#endif
+
+  free(loop->watchers);
+  loop->watchers = NULL;
+  loop->nwatchers = 0;
 }
diff --git a/deps/uv/src/unix/netbsd.c b/deps/uv/src/unix/netbsd.c
index dab1b696be..d9fb426d65 100644
--- a/deps/uv/src/unix/netbsd.c
+++ b/deps/uv/src/unix/netbsd.c
@@ -48,7 +48,7 @@ static char *process_title;
 
 
 int uv__platform_loop_init(uv_loop_t* loop, int default_loop) {
-  return 0;
+  return uv__kqueue_init(loop);
 }
 
 
diff --git a/deps/uv/src/unix/openbsd.c b/deps/uv/src/unix/openbsd.c
index 4319270912..88f20b0153 100644
--- a/deps/uv/src/unix/openbsd.c
+++ b/deps/uv/src/unix/openbsd.c
@@ -44,7 +44,7 @@ static char *process_title;
 
 
 int uv__platform_loop_init(uv_loop_t* loop, int default_loop) {
-  return 0;
+  return uv__kqueue_init(loop);
 }
 
 
diff --git a/deps/uv/src/unix/pipe.c b/deps/uv/src/unix/pipe.c
index 860f7d2d53..f432f4539a 100644
--- a/deps/uv/src/unix/pipe.c
+++ b/deps/uv/src/unix/pipe.c
@@ -29,7 +29,7 @@
 #include <unistd.h>
 #include <stdlib.h>
 
-static void uv__pipe_accept(uv_loop_t* loop, uv__io_t* w, int events);
+static void uv__pipe_accept(uv_loop_t* loop, uv__io_t* w, unsigned int events);
 
 
 int uv_pipe_init(uv_loop_t* loop, uv_pipe_t* handle, int ipc) {
@@ -57,7 +57,7 @@ int uv_pipe_bind(uv_pipe_t* handle, const char* name) {
   bound = 0;
 
   /* Already bound? */
-  if (handle->fd >= 0) {
+  if (handle->io_watcher.fd >= 0) {
     uv__set_artificial_error(handle->loop, UV_EINVAL);
     goto out;
   }
@@ -89,7 +89,7 @@ int uv_pipe_bind(uv_pipe_t* handle, const char* name) {
 
   /* Success. */
   handle->pipe_fname = pipe_fname; /* Is a strdup'ed copy. */
-  handle->fd = sockfd;
+  handle->io_watcher.fd = sockfd;
   status = 0;
 
 out:
@@ -117,21 +117,18 @@ int uv_pipe_listen(uv_pipe_t* handle, int backlog, uv_connection_cb cb) {
   saved_errno = errno;
   status = -1;
 
-  if (handle->fd == -1) {
+  if (handle->io_watcher.fd == -1) {
     uv__set_artificial_error(handle->loop, UV_EINVAL);
     goto out;
   }
-  assert(handle->fd >= 0);
+  assert(handle->io_watcher.fd >= 0);
 
-  if ((status = listen(handle->fd, backlog)) == -1) {
+  if ((status = listen(handle->io_watcher.fd, backlog)) == -1) {
     uv__set_sys_error(handle->loop, errno);
   } else {
     handle->connection_cb = cb;
-    uv__io_init(&handle->read_watcher,
-                uv__pipe_accept,
-                handle->fd,
-                UV__IO_READ);
-    uv__io_start(handle->loop, &handle->read_watcher);
+    handle->io_watcher.cb = uv__pipe_accept;
+    uv__io_start(handle->loop, &handle->io_watcher, UV__POLLIN);
   }
 
 out:
@@ -175,11 +172,11 @@ void uv_pipe_connect(uv_connect_t* req,
   int r;
 
   saved_errno = errno;
-  new_sock = (handle->fd == -1);
+  new_sock = (handle->io_watcher.fd == -1);
   err = -1;
 
   if (new_sock)
-    if ((handle->fd = uv__socket(AF_UNIX, SOCK_STREAM, 0)) == -1)
+    if ((handle->io_watcher.fd = uv__socket(AF_UNIX, SOCK_STREAM, 0)) == -1)
       goto out;
 
   memset(&saddr, 0, sizeof saddr);
@@ -190,7 +187,7 @@ void uv_pipe_connect(uv_connect_t* req,
    * is either there or not.
    */
   do {
-    r = connect(handle->fd, (struct sockaddr*)&saddr, sizeof saddr);
+    r = connect(handle->io_watcher.fd, (struct sockaddr*)&saddr, sizeof saddr);
   }
   while (r == -1 && errno == EINTR);
 
@@ -199,12 +196,11 @@ void uv_pipe_connect(uv_connect_t* req,
 
   if (new_sock)
     if (uv__stream_open((uv_stream_t*)handle,
-                        handle->fd,
+                        handle->io_watcher.fd,
                         UV_STREAM_READABLE | UV_STREAM_WRITABLE))
       goto out;
 
-  uv__io_start(handle->loop, &handle->read_watcher);
-  uv__io_start(handle->loop, &handle->write_watcher);
+  uv__io_start(handle->loop, &handle->io_watcher, UV__POLLIN | UV__POLLOUT);
   err = 0;
 
 out:
@@ -217,7 +213,7 @@ out:
   ngx_queue_init(&req->queue);
 
   /* Run callback on next tick. */
-  uv__io_feed(handle->loop, &handle->write_watcher, UV__IO_WRITE);
+  uv__io_feed(handle->loop, &handle->io_watcher);
 
   /* Mimic the Windows pipe implementation, always
    * return 0 and let the callback handle errors.
@@ -227,17 +223,17 @@ out:
 
 
 /* TODO merge with uv__server_io()? */
-static void uv__pipe_accept(uv_loop_t* loop, uv__io_t* w, int events) {
+static void uv__pipe_accept(uv_loop_t* loop, uv__io_t* w, unsigned int events) {
   uv_pipe_t* pipe;
   int saved_errno;
   int sockfd;
 
   saved_errno = errno;
-  pipe = container_of(w, uv_pipe_t, read_watcher);
+  pipe = container_of(w, uv_pipe_t, io_watcher);
 
   assert(pipe->type == UV_NAMED_PIPE);
 
-  sockfd = uv__accept(pipe->fd);
+  sockfd = uv__accept(pipe->io_watcher.fd);
   if (sockfd == -1) {
     if (errno != EAGAIN && errno != EWOULDBLOCK) {
       uv__set_sys_error(pipe->loop, errno);
@@ -248,7 +244,7 @@ static void uv__pipe_accept(uv_loop_t* loop, uv__io_t* w, int events) {
     pipe->connection_cb((uv_stream_t*)pipe, 0);
     if (pipe->accepted_fd == sockfd) {
       /* The user hasn't called uv_accept() yet */
-      uv__io_stop(pipe->loop, &pipe->read_watcher);
+      uv__io_stop(pipe->loop, &pipe->io_watcher, UV__POLLIN);
     }
   }
 
diff --git a/deps/uv/src/unix/poll.c b/deps/uv/src/unix/poll.c
index 8d6e299d32..b37a99bec3 100644
--- a/deps/uv/src/unix/poll.c
+++ b/deps/uv/src/unix/poll.c
@@ -27,15 +27,14 @@
 #include <errno.h>
 
 
-static void uv__poll_io(uv_loop_t* loop, uv__io_t* w, int events) {
+static void uv__poll_io(uv_loop_t* loop, uv__io_t* w, unsigned int events) {
   uv_poll_t* handle;
   int pevents;
 
   handle = container_of(w, uv_poll_t, io_watcher);
 
-  if (events & UV__IO_ERROR) {
-    /* An error happened. Libev has implicitly stopped the watcher, but we */
-    /* need to fix the refcount. */
+  if (events & UV__POLLERR) {
+    uv__io_stop(loop, w, UV__POLLIN | UV__POLLOUT);
     uv__handle_stop(handle);
     uv__set_sys_error(handle->loop, EBADF);
     handle->poll_cb(handle, -1, 0);
@@ -43,9 +42,9 @@ static void uv__poll_io(uv_loop_t* loop, uv__io_t* w, int events) {
   }
 
   pevents = 0;
-  if (events & UV__IO_READ)
+  if (events & UV__POLLIN)
     pevents |= UV_READABLE;
-  if (events & UV__IO_WRITE)
+  if (events & UV__POLLOUT)
     pevents |= UV_WRITABLE;
 
   handle->poll_cb(handle, 0, pevents);
@@ -54,10 +53,8 @@ static void uv__poll_io(uv_loop_t* loop, uv__io_t* w, int events) {
 
 int uv_poll_init(uv_loop_t* loop, uv_poll_t* handle, int fd) {
   uv__handle_init(loop, (uv_handle_t*) handle, UV_POLL);
-  handle->fd = fd;
+  uv__io_init(&handle->io_watcher, uv__poll_io, fd);
   handle->poll_cb = NULL;
-  uv__io_init(&handle->io_watcher, uv__poll_io, fd, 0);
-
   return 0;
 }
 
@@ -69,7 +66,7 @@ int uv_poll_init_socket(uv_loop_t* loop, uv_poll_t* handle,
 
 
 static void uv__poll_stop(uv_poll_t* handle) {
-  uv__io_stop(handle->loop, &handle->io_watcher);
+  uv__io_stop(handle->loop, &handle->io_watcher, UV__POLLIN | UV__POLLOUT);
   uv__handle_stop(handle);
 }
 
@@ -87,23 +84,20 @@ int uv_poll_start(uv_poll_t* handle, int pevents, uv_poll_cb poll_cb) {
   assert((pevents & ~(UV_READABLE | UV_WRITABLE)) == 0);
   assert(!(handle->flags & (UV_CLOSING | UV_CLOSED)));
 
-  if (pevents == 0) {
-    uv__poll_stop(handle);
+  uv__poll_stop(handle);
+
+  if (pevents == 0)
     return 0;
-  }
 
   events = 0;
   if (pevents & UV_READABLE)
-    events |= UV__IO_READ;
+    events |= UV__POLLIN;
   if (pevents & UV_WRITABLE)
-    events |= UV__IO_WRITE;
+    events |= UV__POLLOUT;
 
-  uv__io_stop(handle->loop, &handle->io_watcher);
-  uv__io_set(&handle->io_watcher, uv__poll_io, handle->fd, events);
-  uv__io_start(handle->loop, &handle->io_watcher);
-
-  handle->poll_cb = poll_cb;
+  uv__io_start(handle->loop, &handle->io_watcher, events);
   uv__handle_start(handle);
+  handle->poll_cb = poll_cb;
 
   return 0;
 }
diff --git a/deps/uv/src/unix/process.c b/deps/uv/src/unix/process.c
index 8b00af5dd8..9ff722c0c1 100644
--- a/deps/uv/src/unix/process.c
+++ b/deps/uv/src/unix/process.c
@@ -204,7 +204,7 @@ static int uv__process_init_stdio(uv_stdio_container_t* container, int fds[2]) {
       if (container->flags & UV_INHERIT_FD) {
         fd = container->data.fd;
       } else {
-        fd = container->data.stream->fd;
+        fd = container->data.stream->io_watcher.fd;
       }
 
       if (fd == -1) {
diff --git a/deps/uv/src/unix/signal.c b/deps/uv/src/unix/signal.c
index 45555b52b7..359f45e8ae 100644
--- a/deps/uv/src/unix/signal.c
+++ b/deps/uv/src/unix/signal.c
@@ -38,7 +38,7 @@ RB_HEAD(uv__signal_tree_s, uv_signal_s);
 
 
 static int uv__signal_unlock();
-static void uv__signal_event(uv_loop_t* loop, uv__io_t* watcher, int events);
+static void uv__signal_event(uv_loop_t* loop, uv__io_t* w, unsigned int events);
 static int uv__signal_compare(uv_signal_t* w1, uv_signal_t* w2);
 static void uv__signal_stop(uv_signal_t* handle);
 
@@ -189,17 +189,16 @@ static uv_err_t uv__signal_register_handler(int signum) {
 static void uv__signal_unregister_handler(int signum) {
   /* When this function is called, the signal lock must be held. */
   struct sigaction sa;
-  int r;
 
   memset(&sa, 0, sizeof(sa));
   sa.sa_handler = SIG_DFL;
 
-  r = sigaction(signum, &sa, NULL);
   /* sigaction can only fail with EINVAL or EFAULT; an attempt to deregister a
    * signal implies that it was successfully registered earlier, so EINVAL
    * should never happen.
    */
-  assert(r == 0);
+  if (sigaction(signum, &sa, NULL))
+    abort();
 }
 
 
@@ -213,9 +212,8 @@ static int uv__signal_loop_once_init(uv_loop_t* loop) {
 
   uv__io_init(&loop->signal_io_watcher,
               uv__signal_event,
-              loop->signal_pipefd[0],
-              UV__IO_READ);
-  uv__io_start(loop, &loop->signal_io_watcher);
+              loop->signal_pipefd[0]);
+  uv__io_start(loop, &loop->signal_io_watcher, UV__POLLIN);
 
   return 0;
 }
@@ -330,7 +328,7 @@ int uv_signal_start(uv_signal_t* handle, uv_signal_cb signal_cb, int signum) {
 }
 
 
-static void uv__signal_event(uv_loop_t* loop, uv__io_t* watcher, int events) {
+static void uv__signal_event(uv_loop_t* loop, uv__io_t* w, unsigned int events) {
   uv__signal_msg_t* msg;
   uv_signal_t* handle;
   char buf[sizeof(uv__signal_msg_t) * 32];
@@ -439,6 +437,7 @@ static void uv__signal_stop(uv_signal_t* handle) {
 
   removed_handle = RB_REMOVE(uv__signal_tree_s, &uv__signal_tree, handle);
   assert(removed_handle == handle);
+  (void) removed_handle;
 
   /* Check if there are other active signal watchers observing this signal. If
    * not, unregister the signal handler.
diff --git a/deps/uv/src/unix/stream.c b/deps/uv/src/unix/stream.c
index ed489f779e..6af6020af8 100644
--- a/deps/uv/src/unix/stream.c
+++ b/deps/uv/src/unix/stream.c
@@ -38,7 +38,7 @@
 static void uv__stream_connect(uv_stream_t*);
 static void uv__write(uv_stream_t* stream);
 static void uv__read(uv_stream_t* stream);
-static void uv__stream_io(uv_loop_t* loop, uv__io_t* w, int events);
+static void uv__stream_io(uv_loop_t* loop, uv__io_t* w, unsigned int events);
 
 
 /* Used by the accept() EMFILE party trick. */
@@ -88,7 +88,6 @@ void uv__stream_init(uv_loop_t* loop,
   stream->connect_req = NULL;
   stream->shutdown_req = NULL;
   stream->accepted_fd = -1;
-  stream->fd = -1;
   stream->delayed_error = 0;
   ngx_queue_init(&stream->write_queue);
   ngx_queue_init(&stream->write_completed_queue);
@@ -97,8 +96,7 @@ void uv__stream_init(uv_loop_t* loop,
   if (loop->emfile_fd == -1)
     loop->emfile_fd = uv__open_cloexec("/", O_RDONLY);
 
-  uv__io_init(&stream->read_watcher, uv__stream_io, -1, 0);
-  uv__io_init(&stream->write_watcher, uv__stream_io, -1, 0);
+  uv__io_init(&stream->io_watcher, uv__stream_io, -1);
 }
 
 
@@ -106,33 +104,24 @@ int uv__stream_open(uv_stream_t* stream, int fd, int flags) {
   socklen_t yes;
 
   assert(fd >= 0);
-  stream->fd = fd;
-
   stream->flags |= flags;
 
   if (stream->type == UV_TCP) {
     /* Reuse the port address if applicable. */
     yes = 1;
-    if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof yes) == -1) {
-      uv__set_sys_error(stream->loop, errno);
-      return -1;
-    }
 
-    if ((stream->flags & UV_TCP_NODELAY) &&
-        uv__tcp_nodelay((uv_tcp_t*)stream, 1)) {
-      return -1;
-    }
+    if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof yes) == -1)
+      return uv__set_sys_error(stream->loop, errno);
+
+    if ((stream->flags & UV_TCP_NODELAY) && uv__tcp_nodelay(fd, 1))
+      return uv__set_sys_error(stream->loop, errno);
 
     /* TODO Use delay the user passed in. */
-    if ((stream->flags & UV_TCP_KEEPALIVE) &&
-        uv__tcp_keepalive((uv_tcp_t*)stream, 1, 60)) {
-      return -1;
-    }
+    if ((stream->flags & UV_TCP_KEEPALIVE) && uv__tcp_keepalive(fd, 1, 60))
+      return uv__set_sys_error(stream->loop, errno);
   }
 
-  /* Associate the fd with each watcher. */
-  uv__io_set(&stream->read_watcher, uv__stream_io, fd, UV__IO_READ);
-  uv__io_set(&stream->write_watcher, uv__stream_io, fd, UV__IO_WRITE);
+  stream->io_watcher.fd = fd;
 
   return 0;
 }
@@ -142,6 +131,7 @@ void uv__stream_destroy(uv_stream_t* stream) {
   uv_write_t* req;
   ngx_queue_t* q;
 
+  assert(!uv__io_active(&stream->io_watcher, UV__POLLIN | UV__POLLOUT));
   assert(stream->flags & UV_CLOSED);
 
   if (stream->connect_req) {
@@ -232,27 +222,26 @@ static int uv__emfile_trick(uv_loop_t* loop, int accept_fd) {
 }
 
 
-void uv__server_io(uv_loop_t* loop, uv__io_t* w, int events) {
+void uv__server_io(uv_loop_t* loop, uv__io_t* w, unsigned int events) {
   static int use_emfile_trick = -1;
   uv_stream_t* stream;
   int fd;
   int r;
 
-  stream = container_of(w, uv_stream_t, read_watcher);
-  assert(events == UV__IO_READ);
+  stream = container_of(w, uv_stream_t, io_watcher);
+  assert(events == UV__POLLIN);
+  assert(stream->accepted_fd == -1);
   assert(!(stream->flags & UV_CLOSING));
 
-  if (stream->accepted_fd >= 0) {
-    uv__io_stop(loop, &stream->read_watcher);
-    return;
-  }
+  if (stream->accepted_fd == -1)
+    uv__io_start(stream->loop, &stream->io_watcher, UV__POLLIN);
 
   /* connection_cb can close the server socket while we're
    * in the loop so check it on each iteration.
    */
-  while (stream->fd != -1) {
-    assert(stream->accepted_fd < 0);
-    fd = uv__accept(stream->fd);
+  while (stream->io_watcher.fd != -1) {
+    assert(stream->accepted_fd == -1);
+    fd = uv__accept(stream->io_watcher.fd);
 
     if (fd == -1) {
       switch (errno) {
@@ -273,7 +262,7 @@ void uv__server_io(uv_loop_t* loop, uv__io_t* w, int events) {
         }
 
         if (use_emfile_trick) {
-          SAVE_ERRNO(r = uv__emfile_trick(loop, stream->fd));
+          SAVE_ERRNO(r = uv__emfile_trick(loop, stream->io_watcher.fd));
           if (r == 0)
             continue;
         }
@@ -292,7 +281,7 @@ void uv__server_io(uv_loop_t* loop, uv__io_t* w, int events) {
 
     if (stream->accepted_fd != -1) {
       /* The user hasn't yet accepted called uv_accept() */
-      uv__io_stop(loop, &stream->read_watcher);
+      uv__io_stop(loop, &stream->io_watcher, UV__POLLIN);
       return;
     }
 
@@ -333,7 +322,7 @@ int uv_accept(uv_stream_t* server, uv_stream_t* client) {
     goto out;
   }
 
-  uv__io_start(streamServer->loop, &streamServer->read_watcher);
+  uv__io_start(streamServer->loop, &streamServer->io_watcher, UV__POLLIN);
   streamServer->accepted_fd = -1;
   status = 0;
 
@@ -393,7 +382,7 @@ static void uv__drain(uv_stream_t* stream) {
   assert(!uv_write_queue_head(stream));
   assert(stream->write_queue_size == 0);
 
-  uv__io_stop(stream->loop, &stream->write_watcher);
+  uv__io_stop(stream->loop, &stream->io_watcher, UV__POLLOUT);
 
   /* Shutdown? */
   if ((stream->flags & UV_STREAM_SHUTTING) &&
@@ -405,7 +394,7 @@ static void uv__drain(uv_stream_t* stream) {
     stream->shutdown_req = NULL;
     uv__req_unregister(stream->loop, req);
 
-    if (shutdown(stream->fd, SHUT_WR)) {
+    if (shutdown(stream->io_watcher.fd, SHUT_WR)) {
       /* Error. Report it. User should call uv_close(). */
       uv__set_sys_error(stream->loop, errno);
       if (req->cb) {
@@ -447,7 +436,7 @@ static void uv__write_req_finish(uv_write_t* req) {
    * callback called in the near future.
    */
   ngx_queue_insert_tail(&stream->write_completed_queue, &req->queue);
-  uv__io_feed(stream->loop, &stream->write_watcher, UV__IO_WRITE);
+  uv__io_feed(stream->loop, &stream->io_watcher);
 }
 
 
@@ -469,7 +458,7 @@ static void uv__write(uv_stream_t* stream) {
 
 start:
 
-  assert(stream->fd >= 0);
+  assert(stream->io_watcher.fd >= 0);
 
   /* Get the request at the head of the queue. */
   req = uv_write_queue_head(stream);
@@ -497,7 +486,7 @@ start:
     struct msghdr msg;
     char scratch[64];
     struct cmsghdr *cmsg;
-    int fd_to_send = req->send_handle->fd;
+    int fd_to_send = req->send_handle->io_watcher.fd;
 
     assert(fd_to_send >= 0);
 
@@ -523,15 +512,15 @@ start:
     }
 
     do {
-      n = sendmsg(stream->fd, &msg, 0);
+      n = sendmsg(stream->io_watcher.fd, &msg, 0);
     }
     while (n == -1 && errno == EINTR);
   } else {
     do {
       if (iovcnt == 1) {
-        n = write(stream->fd, iov[0].iov_base, iov[0].iov_len);
+        n = write(stream->io_watcher.fd, iov[0].iov_base, iov[0].iov_len);
       } else {
-        n = writev(stream->fd, iov, iovcnt);
+        n = writev(stream->io_watcher.fd, iov, iovcnt);
       }
     }
     while (n == -1 && errno == EINTR);
@@ -603,7 +592,7 @@ start:
   assert(!(stream->flags & UV_STREAM_BLOCKING));
 
   /* We're not done. */
-  uv__io_start(stream->loop, &stream->write_watcher);
+  uv__io_start(stream->loop, &stream->io_watcher, UV__POLLOUT);
 }
 
 
@@ -680,11 +669,11 @@ static void uv__read(uv_stream_t* stream) {
 
     assert(buf.len > 0);
     assert(buf.base);
-    assert(stream->fd >= 0);
+    assert(stream->io_watcher.fd >= 0);
 
     if (stream->read_cb) {
       do {
-        nread = read(stream->fd, buf.base, buf.len);
+        nread = read(stream->io_watcher.fd, buf.base, buf.len);
       }
       while (nread < 0 && errno == EINTR);
     } else {
@@ -700,7 +689,7 @@ static void uv__read(uv_stream_t* stream) {
       msg.msg_control = (void *) cmsg_space;
 
       do {
-        nread = recvmsg(stream->fd, &msg, 0);
+        nread = recvmsg(stream->io_watcher.fd, &msg, 0);
       }
       while (nread < 0 && errno == EINTR);
     }
@@ -711,7 +700,7 @@ static void uv__read(uv_stream_t* stream) {
       if (errno == EAGAIN || errno == EWOULDBLOCK) {
         /* Wait for the next one. */
         if (stream->flags & UV_STREAM_READING) {
-          uv__io_start(stream->loop, &stream->read_watcher);
+          uv__io_start(stream->loop, &stream->io_watcher, UV__POLLIN);
         }
         uv__set_sys_error(stream->loop, EAGAIN);
 
@@ -732,15 +721,16 @@ static void uv__read(uv_stream_t* stream) {
           stream->read2_cb((uv_pipe_t*)stream, -1, buf, UV_UNKNOWN_HANDLE);
         }
 
-        assert(!uv__io_active(&stream->read_watcher));
+        assert(!uv__io_active(&stream->io_watcher, UV__POLLIN));
         return;
       }
 
     } else if (nread == 0) {
       /* EOF */
       uv__set_artificial_error(stream->loop, UV_EOF);
-      uv__io_stop(stream->loop, &stream->read_watcher);
-      if (!uv__io_active(&stream->write_watcher))
+      uv__io_stop(stream->loop, &stream->io_watcher, UV__POLLIN);
+
+      if (!uv__io_active(&stream->io_watcher, UV__POLLOUT))
         uv__handle_stop(stream);
 
       if (stream->read_cb) {
@@ -808,7 +798,7 @@ static void uv__read(uv_stream_t* stream) {
 int uv_shutdown(uv_shutdown_t* req, uv_stream_t* stream, uv_shutdown_cb cb) {
   assert((stream->type == UV_TCP || stream->type == UV_NAMED_PIPE) &&
          "uv_shutdown (unix) only supports uv_handle_t right now");
-  assert(stream->fd >= 0);
+  assert(stream->io_watcher.fd >= 0);
 
   if (!(stream->flags & UV_STREAM_WRITABLE) ||
       stream->flags & UV_STREAM_SHUT ||
@@ -825,36 +815,38 @@ int uv_shutdown(uv_shutdown_t* req, uv_stream_t* stream, uv_shutdown_cb cb) {
   stream->shutdown_req = req;
   stream->flags |= UV_STREAM_SHUTTING;
 
-  uv__io_start(stream->loop, &stream->write_watcher);
+  uv__io_start(stream->loop, &stream->io_watcher, UV__POLLOUT);
 
   return 0;
 }
 
 
-static void uv__stream_io(uv_loop_t* loop, uv__io_t* w, int events) {
+static void uv__stream_io(uv_loop_t* loop, uv__io_t* w, unsigned int events) {
   uv_stream_t* stream;
 
-  /* either UV__IO_READ or UV__IO_WRITE but not both */
-  assert(!!(events & UV__IO_READ) ^ !!(events & UV__IO_WRITE));
-
-  if (events & UV__IO_READ)
-    stream = container_of(w, uv_stream_t, read_watcher);
-  else
-    stream = container_of(w, uv_stream_t, write_watcher);
+  stream = container_of(w, uv_stream_t, io_watcher);
 
   assert(stream->type == UV_TCP ||
          stream->type == UV_NAMED_PIPE ||
          stream->type == UV_TTY);
   assert(!(stream->flags & UV_CLOSING));
 
-  if (stream->connect_req)
+  if (stream->connect_req) {
     uv__stream_connect(stream);
-  else if (events & UV__IO_READ) {
-    assert(stream->fd >= 0);
+    return;
+  }
+
+  if (events & UV__POLLIN) {
+    assert(stream->io_watcher.fd >= 0);
+
     uv__read(stream);
+
+    if (stream->io_watcher.fd == -1)
+      return; /* read_cb closed stream. */
   }
-  else {
-    assert(stream->fd >= 0);
+
+  if (events & UV__POLLOUT) {
+    assert(stream->io_watcher.fd >= 0);
     uv__write(stream);
     uv__write_callbacks(stream);
   }
@@ -883,8 +875,8 @@ static void uv__stream_connect(uv_stream_t* stream) {
     stream->delayed_error = 0;
   } else {
     /* Normal situation: we need to get the socket error from the kernel. */
-    assert(stream->fd >= 0);
-    getsockopt(stream->fd, SOL_SOCKET, SO_ERROR, &error, &errorsize);
+    assert(stream->io_watcher.fd >= 0);
+    getsockopt(stream->io_watcher.fd, SOL_SOCKET, SO_ERROR, &error, &errorsize);
   }
 
   if (error == EINPROGRESS)
@@ -914,7 +906,7 @@ int uv_write2(uv_write_t* req,
       stream->type == UV_TTY) &&
       "uv_write (unix) does not yet support other types of streams");
 
-  if (stream->fd < 0) {
+  if (stream->io_watcher.fd < 0) {
     uv__set_sys_error(stream->loop, EBADF);
     return -1;
   }
@@ -966,7 +958,7 @@ int uv_write2(uv_write_t* req,
      * sufficiently flushed in uv__write.
      */
     assert(!(stream->flags & UV_STREAM_BLOCKING));
-    uv__io_start(stream->loop, &stream->write_watcher);
+    uv__io_start(stream->loop, &stream->io_watcher, UV__POLLOUT);
   }
 
   return 0;
@@ -1001,14 +993,14 @@ int uv__read_start_common(uv_stream_t* stream, uv_alloc_cb alloc_cb,
   /* TODO: keep track of tcp state. If we've gotten a EOF then we should
    * not start the IO watcher.
    */
-  assert(stream->fd >= 0);
+  assert(stream->io_watcher.fd >= 0);
   assert(alloc_cb);
 
   stream->read_cb = read_cb;
   stream->read2_cb = read2_cb;
   stream->alloc_cb = alloc_cb;
 
-  uv__io_start(stream->loop, &stream->read_watcher);
+  uv__io_start(stream->loop, &stream->io_watcher, UV__POLLIN);
   uv__handle_start(stream);
 
   return 0;
@@ -1028,7 +1020,7 @@ int uv_read2_start(uv_stream_t* stream, uv_alloc_cb alloc_cb,
 
 
 int uv_read_stop(uv_stream_t* stream) {
-  uv__io_stop(stream->loop, &stream->read_watcher);
+  uv__io_stop(stream->loop, &stream->io_watcher, UV__POLLIN);
   uv__handle_stop(stream);
   stream->flags &= ~UV_STREAM_READING;
   stream->read_cb = NULL;
@@ -1050,16 +1042,15 @@ int uv_is_writable(const uv_stream_t* stream) {
 
 void uv__stream_close(uv_stream_t* handle) {
   uv_read_stop(handle);
-  uv__io_stop(handle->loop, &handle->write_watcher);
+  uv__io_stop(handle->loop, &handle->io_watcher, UV__POLLOUT);
 
-  close(handle->fd);
-  handle->fd = -1;
+  close(handle->io_watcher.fd);
+  handle->io_watcher.fd = -1;
 
   if (handle->accepted_fd >= 0) {
     close(handle->accepted_fd);
     handle->accepted_fd = -1;
   }
 
-  assert(!uv__io_active(&handle->read_watcher));
-  assert(!uv__io_active(&handle->write_watcher));
+  assert(!uv__io_active(&handle->io_watcher, UV__POLLIN | UV__POLLOUT));
 }
diff --git a/deps/uv/src/unix/sunos.c b/deps/uv/src/unix/sunos.c
index bf1352480d..744fea7775 100644
--- a/deps/uv/src/unix/sunos.c
+++ b/deps/uv/src/unix/sunos.c
@@ -65,14 +65,163 @@
 
 int uv__platform_loop_init(uv_loop_t* loop, int default_loop) {
   loop->fs_fd = -1;
+  loop->backend_fd = port_create();
+
+  if (loop->backend_fd == -1)
+    return -1;
+
+  uv__cloexec(loop->backend_fd, 1);
+
   return 0;
 }
 
 
 void uv__platform_loop_delete(uv_loop_t* loop) {
-  if (loop->fs_fd == -1) return;
-  close(loop->fs_fd);
-  loop->fs_fd = -1;
+  if (loop->fs_fd != -1) {
+    close(loop->fs_fd);
+    loop->fs_fd = -1;
+  }
+
+  if (loop->backend_fd != -1) {
+    close(loop->backend_fd);
+    loop->backend_fd = -1;
+  }
+}
+
+
+void uv__io_poll(uv_loop_t* loop, int timeout) {
+  struct port_event events[1024];
+  struct port_event* pe;
+  struct timespec spec;
+  ngx_queue_t* q;
+  uv__io_t* w;
+  uint64_t base;
+  uint64_t diff;
+  unsigned int nfds;
+  unsigned int i;
+  int saved_errno;
+  int nevents;
+  int count;
+  int fd;
+
+  if (loop->nfds == 0) {
+    assert(ngx_queue_empty(&loop->watcher_queue));
+    return;
+  }
+
+  while (!ngx_queue_empty(&loop->watcher_queue)) {
+    q = ngx_queue_head(&loop->watcher_queue);
+    ngx_queue_remove(q);
+    ngx_queue_init(q);
+
+    w = ngx_queue_data(q, uv__io_t, watcher_queue);
+    assert(w->pevents != 0);
+
+    if (port_associate(loop->backend_fd, PORT_SOURCE_FD, w->fd, w->pevents, 0))
+      abort();
+
+    w->events = w->pevents;
+  }
+
+  assert(timeout >= -1);
+  base = loop->time;
+  count = 48; /* Benchmarks suggest this gives the best throughput. */
+
+  for (;;) {
+    if (timeout != -1) {
+      spec.tv_sec = timeout / 1000;
+      spec.tv_nsec = (timeout % 1000) * 1000000;
+    }
+
+    /* Work around a kernel bug where nfds is not updated. */
+    events[0].portev_source = 0;
+
+    nfds = 1;
+    saved_errno = 0;
+    if (port_getn(loop->backend_fd,
+                  events,
+                  ARRAY_SIZE(events),
+                  &nfds,
+                  timeout == -1 ? NULL : &spec)) {
+      /* Work around another kernel bug: port_getn() may return events even
+       * on error.
+       */
+      if (errno == EINTR || errno == ETIME)
+        saved_errno = errno;
+      else
+        abort();
+    }
+
+    if (events[0].portev_source == 0) {
+      if (timeout == 0)
+        return;
+
+      if (timeout == -1)
+        continue;
+
+      goto update_timeout;
+    }
+
+    if (nfds == 0) {
+      assert(timeout != -1);
+      return;
+    }
+
+    nevents = 0;
+
+    for (i = 0; i < nfds; i++) {
+      pe = events + i;
+      fd = pe->portev_object;
+
+      assert(fd >= 0);
+      assert((unsigned) fd < loop->nwatchers);
+
+      w = loop->watchers[fd];
+
+      /* File descriptor that we've stopped watching, ignore. */
+      if (w == NULL)
+        continue;
+
+      w->cb(loop, w, pe->portev_events);
+      nevents++;
+
+      /* Events Ports operates in oneshot mode, rearm timer on next run. */
+      if (w->pevents != 0 && ngx_queue_empty(&w->watcher_queue))
+        ngx_queue_insert_tail(&loop->watcher_queue, &w->watcher_queue);
+    }
+
+    if (nevents != 0) {
+      if (nfds == ARRAY_SIZE(events) && --count != 0) {
+        /* Poll for more events but don't block this time. */
+        timeout = 0;
+        continue;
+      }
+      return;
+    }
+
+    if (saved_errno == ETIME) {
+      assert(timeout != -1);
+      return;
+    }
+
+    if (timeout == 0)
+      return;
+
+    if (timeout == -1)
+      continue;
+
+update_timeout:
+    assert(timeout > 0);
+
+    diff = uv_hrtime() / 1000000;
+    assert(diff >= base);
+    diff -= base;
+
+    if (diff >= (uint64_t) timeout)
+      return;
+
+    timeout -= diff;
+  }
 }
 
 
@@ -139,7 +288,9 @@ static void uv__fs_event_rearm(uv_fs_event_t *handle) {
 }
 
 
-static void uv__fs_event_read(uv_loop_t* loop, uv__io_t* w, int revents) {
+static void uv__fs_event_read(uv_loop_t* loop,
+                              uv__io_t* w,
+                              unsigned int revents) {
   uv_fs_event_t *handle = NULL;
   timespec_t timeout;
   port_event_t pe;
@@ -216,8 +367,8 @@ int uv_fs_event_init(uv_loop_t* loop,
   uv__fs_event_rearm(handle);
 
   if (first_run) {
-    uv__io_init(&loop->fs_event_watcher, uv__fs_event_read, portfd, UV__IO_READ);
-    uv__io_start(loop, &loop->fs_event_watcher);
+    uv__io_init(&loop->fs_event_watcher, uv__fs_event_read, portfd);
+    uv__io_start(loop, &loop->fs_event_watcher, UV__POLLIN);
   }
 
   return 0;
diff --git a/deps/uv/src/unix/tcp.c b/deps/uv/src/unix/tcp.c
index 4325c5b120..7c86e7089f 100644
--- a/deps/uv/src/unix/tcp.c
+++ b/deps/uv/src/unix/tcp.c
@@ -37,7 +37,7 @@ int uv_tcp_init(uv_loop_t* loop, uv_tcp_t* tcp) {
 static int maybe_new_socket(uv_tcp_t* handle, int domain, int flags) {
   int sockfd;
 
-  if (handle->fd != -1)
+  if (handle->io_watcher.fd != -1)
     return 0;
 
   sockfd = uv__socket(domain, SOCK_STREAM, 0);
@@ -68,7 +68,7 @@ static int uv__bind(uv_tcp_t* tcp,
     return -1;
 
   tcp->delayed_error = 0;
-  if (bind(tcp->fd, addr, addrsize) == -1) {
+  if (bind(tcp->io_watcher.fd, addr, addrsize) == -1) {
     if (errno == EADDRINUSE) {
       tcp->delayed_error = errno;
     } else {
@@ -105,7 +105,7 @@ static int uv__connect(uv_connect_t* req,
   handle->delayed_error = 0;
 
   do
-    r = connect(handle->fd, addr, addrlen);
+    r = connect(handle->io_watcher.fd, addr, addrlen);
   while (r == -1 && errno == EINTR);
 
   if (r == -1) {
@@ -127,10 +127,10 @@ static int uv__connect(uv_connect_t* req,
   ngx_queue_init(&req->queue);
   handle->connect_req = req;
 
-  uv__io_start(handle->loop, &handle->write_watcher);
+  uv__io_start(handle->loop, &handle->io_watcher, UV__POLLOUT);
 
   if (handle->delayed_error)
-    uv__io_feed(handle->loop, &handle->write_watcher, UV__IO_WRITE);
+    uv__io_feed(handle->loop, &handle->io_watcher);
 
   return 0;
 }
@@ -174,7 +174,7 @@ int uv_tcp_getsockname(uv_tcp_t* handle, struct sockaddr* name,
     goto out;
   }
 
-  if (handle->fd < 0) {
+  if (handle->io_watcher.fd < 0) {
     uv__set_sys_error(handle->loop, EINVAL);
     rv = -1;
     goto out;
@@ -183,7 +183,7 @@ int uv_tcp_getsockname(uv_tcp_t* handle, struct sockaddr* name,
   /* sizeof(socklen_t) != sizeof(int) on some systems. */
   socklen = (socklen_t)*namelen;
 
-  if (getsockname(handle->fd, name, &socklen) == -1) {
+  if (getsockname(handle->io_watcher.fd, name, &socklen) == -1) {
     uv__set_sys_error(handle->loop, errno);
     rv = -1;
   } else {
@@ -211,7 +211,7 @@ int uv_tcp_getpeername(uv_tcp_t* handle, struct sockaddr* name,
     goto out;
   }
 
-  if (handle->fd < 0) {
+  if (handle->io_watcher.fd < 0) {
     uv__set_sys_error(handle->loop, EINVAL);
     rv = -1;
     goto out;
@@ -220,7 +220,7 @@ int uv_tcp_getpeername(uv_tcp_t* handle, struct sockaddr* name,
   /* sizeof(socklen_t) != sizeof(int) on some systems. */
   socklen = (socklen_t)*namelen;
 
-  if (getpeername(handle->fd, name, &socklen) == -1) {
+  if (getpeername(handle->io_watcher.fd, name, &socklen) == -1) {
     uv__set_sys_error(handle->loop, errno);
     rv = -1;
   } else {
@@ -250,14 +250,14 @@ int uv_tcp_listen(uv_tcp_t* tcp, int backlog, uv_connection_cb cb) {
   if (maybe_new_socket(tcp, AF_INET, UV_STREAM_READABLE))
     return -1;
 
-  if (listen(tcp->fd, backlog))
+  if (listen(tcp->io_watcher.fd, backlog))
     return uv__set_sys_error(tcp->loop, errno);
 
   tcp->connection_cb = cb;
 
   /* Start listening for connections. */
-  uv__io_set(&tcp->read_watcher, uv__server_io, tcp->fd, UV__IO_READ);
-  uv__io_start(tcp->loop, &tcp->read_watcher);
+  tcp->io_watcher.cb = uv__server_io;
+  uv__io_start(tcp->loop, &tcp->io_watcher, UV__POLLIN);
 
   return 0;
 }
@@ -293,63 +293,38 @@ int uv__tcp_connect6(uv_connect_t* req,
 }
 
 
-int uv__tcp_nodelay(uv_tcp_t* handle, int enable) {
-  if (setsockopt(handle->fd,
-                 IPPROTO_TCP,
-                 TCP_NODELAY,
-                 &enable,
-                 sizeof enable) == -1) {
-    uv__set_sys_error(handle->loop, errno);
-    return -1;
-  }
-  return 0;
+int uv__tcp_nodelay(int fd, int on) {
+  return setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &on, sizeof(on));
 }
 
 
-int uv__tcp_keepalive(uv_tcp_t* handle, int enable, unsigned int delay) {
-  if (setsockopt(handle->fd,
-                 SOL_SOCKET,
-                 SO_KEEPALIVE,
-                 &enable,
-                 sizeof enable) == -1) {
-    uv__set_sys_error(handle->loop, errno);
+int uv__tcp_keepalive(int fd, int on, unsigned int delay) {
+  if (setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, &on, sizeof(on)))
     return -1;
-  }
 
 #ifdef TCP_KEEPIDLE
-  if (enable && setsockopt(handle->fd,
-                           IPPROTO_TCP,
-                           TCP_KEEPIDLE,
-                           &delay,
-                           sizeof delay) == -1) {
-    uv__set_sys_error(handle->loop, errno);
+  if (on && setsockopt(fd, IPPROTO_TCP, TCP_KEEPIDLE, &delay, sizeof(delay)))
     return -1;
-  }
 #endif
 
   /* Solaris/SmartOS, if you don't support keep-alive,
    * then don't advertise it in your system headers...
    */
 #if defined(TCP_KEEPALIVE) && !defined(__sun)
-  if (enable && setsockopt(handle->fd,
-                           IPPROTO_TCP,
-                           TCP_KEEPALIVE,
-                           &delay,
-                           sizeof delay) == -1) {
-    uv__set_sys_error(handle->loop, errno);
+  if (on && setsockopt(fd, IPPROTO_TCP, TCP_KEEPALIVE, &delay, sizeof(delay)))
     return -1;
-  }
 #endif
 
   return 0;
 }
 
 
-int uv_tcp_nodelay(uv_tcp_t* handle, int enable) {
-  if (handle->fd != -1 && uv__tcp_nodelay(handle, enable))
-    return -1;
+int uv_tcp_nodelay(uv_tcp_t* handle, int on) {
+  if (handle->io_watcher.fd != -1)
+    if (uv__tcp_nodelay(handle->io_watcher.fd, on))
+      return -1;
 
-  if (enable)
+  if (on)
     handle->flags |= UV_TCP_NODELAY;
   else
     handle->flags &= ~UV_TCP_NODELAY;
@@ -358,25 +333,26 @@ int uv_tcp_nodelay(uv_tcp_t* handle, int enable) {
 }
 
 
-int uv_tcp_keepalive(uv_tcp_t* handle, int enable, unsigned int delay) {
-  if (handle->fd != -1 && uv__tcp_keepalive(handle, enable, delay))
-    return -1;
+int uv_tcp_keepalive(uv_tcp_t* handle, int on, unsigned int delay) {
+  if (handle->io_watcher.fd != -1)
+    if (uv__tcp_keepalive(handle->io_watcher.fd, on, delay))
+      return -1;
 
-  if (enable)
+  if (on)
     handle->flags |= UV_TCP_KEEPALIVE;
   else
     handle->flags &= ~UV_TCP_KEEPALIVE;
 
-  /* TODO Store delay if handle->fd == -1 but don't want to enlarge
-   *       uv_tcp_t with an int that's almost never used...
+  /* TODO Store delay if handle->io_watcher.fd == -1 but don't want to enlarge
+   *      uv_tcp_t with an int that's almost never used...
    */
 
   return 0;
 }
 
 
-int uv_tcp_simultaneous_accepts(uv_tcp_t* handle, int enable) {
-  if (enable)
+int uv_tcp_simultaneous_accepts(uv_tcp_t* handle, int on) {
+  if (on)
     handle->flags |= UV_TCP_SINGLE_ACCEPT;
   else
     handle->flags &= ~UV_TCP_SINGLE_ACCEPT;
diff --git a/deps/uv/src/unix/tty.c b/deps/uv/src/unix/tty.c
index 3ef9064a10..5c1e3609af 100644
--- a/deps/uv/src/unix/tty.c
+++ b/deps/uv/src/unix/tty.c
@@ -51,8 +51,10 @@ int uv_tty_init(uv_loop_t* loop, uv_tty_t* tty, int fd, int readable) {
 
 
 int uv_tty_set_mode(uv_tty_t* tty, int mode) {
-  int fd = tty->fd;
   struct termios raw;
+  int fd;
+
+  fd = tty->io_watcher.fd;
 
   if (mode && tty->mode == 0) {
     /* on */
@@ -103,7 +105,7 @@ fatal:
 int uv_tty_get_winsize(uv_tty_t* tty, int* width, int* height) {
   struct winsize ws;
 
-  if (ioctl(tty->fd, TIOCGWINSZ, &ws) < 0) {
+  if (ioctl(tty->io_watcher.fd, TIOCGWINSZ, &ws) < 0) {
     uv__set_sys_error(tty->loop, errno);
     return -1;
   }
diff --git a/deps/uv/src/unix/udp.c b/deps/uv/src/unix/udp.c
index 6f5a3f14e7..d8143d40ee 100644
--- a/deps/uv/src/unix/udp.c
+++ b/deps/uv/src/unix/udp.c
@@ -31,41 +31,19 @@
 
 static void uv__udp_run_completed(uv_udp_t* handle);
 static void uv__udp_run_pending(uv_udp_t* handle);
-static void uv__udp_recvmsg(uv_loop_t* loop, uv__io_t* w, int revents);
-static void uv__udp_sendmsg(uv_loop_t* loop, uv__io_t* w, int revents);
+static void uv__udp_io(uv_loop_t* loop, uv__io_t* w, unsigned int revents);
+static void uv__udp_recvmsg(uv_loop_t* loop, uv__io_t* w, unsigned int revents);
+static void uv__udp_sendmsg(uv_loop_t* loop, uv__io_t* w, unsigned int revents);
 static int uv__udp_maybe_deferred_bind(uv_udp_t* handle, int domain);
 static int uv__udp_send(uv_udp_send_t* req, uv_udp_t* handle, uv_buf_t bufs[],
     int bufcnt, struct sockaddr* addr, socklen_t addrlen, uv_udp_send_cb send_cb);
 
 
-static void uv__udp_start_watcher(uv_udp_t* handle,
-                                  uv__io_t* w,
-                                  uv__io_cb cb,
-                                  int events) {
-  if (uv__io_active(w)) return;
-  uv__io_init(w, cb, handle->fd, events);
-  uv__io_start(handle->loop, w);
-  uv__handle_start(handle);
-}
-
-
-static void uv__udp_stop_watcher(uv_udp_t* handle, uv__io_t* w) {
-  if (!uv__io_active(w)) return;
-  uv__io_stop(handle->loop, w);
-
-  if (!uv__io_active(&handle->read_watcher) &&
-      !uv__io_active(&handle->write_watcher))
-  {
-    uv__handle_stop(handle);
-  }
-}
-
-
 void uv__udp_close(uv_udp_t* handle) {
-  uv__udp_stop_watcher(handle, &handle->write_watcher);
-  uv__udp_stop_watcher(handle, &handle->read_watcher);
-  close(handle->fd);
-  handle->fd = -1;
+  uv__io_stop(handle->loop, &handle->io_watcher, UV__POLLIN | UV__POLLOUT);
+  uv__handle_stop(handle);
+  close(handle->io_watcher.fd);
+  handle->io_watcher.fd = -1;
 }
 
 
@@ -73,9 +51,8 @@ void uv__udp_finish_close(uv_udp_t* handle) {
   uv_udp_send_t* req;
   ngx_queue_t* q;
 
-  assert(!uv__io_active(&handle->write_watcher));
-  assert(!uv__io_active(&handle->read_watcher));
-  assert(handle->fd == -1);
+  assert(!uv__io_active(&handle->io_watcher, UV__POLLIN | UV__POLLOUT));
+  assert(handle->io_watcher.fd == -1);
 
   uv__udp_run_completed(handle);
 
@@ -126,7 +103,7 @@ static void uv__udp_run_pending(uv_udp_t* handle) {
     h.msg_iovlen = req->bufcnt;
 
     do {
-      size = sendmsg(handle->fd, &h, 0);
+      size = sendmsg(handle->io_watcher.fd, &h, 0);
     }
     while (size == -1 && errno == EINTR);
 
@@ -194,7 +171,18 @@ static void uv__udp_run_completed(uv_udp_t* handle) {
 }
 
 
-static void uv__udp_recvmsg(uv_loop_t* loop, uv__io_t* w, int revents) {
+static void uv__udp_io(uv_loop_t* loop, uv__io_t* w, unsigned int revents) {
+  if (revents & UV__POLLIN)
+    uv__udp_recvmsg(loop, w, revents);
+
+  if (revents & UV__POLLOUT)
+    uv__udp_sendmsg(loop, w, revents);
+}
+
+
+static void uv__udp_recvmsg(uv_loop_t* loop,
+                            uv__io_t* w,
+                            unsigned int revents) {
   struct sockaddr_storage peer;
   struct msghdr h;
   uv_udp_t* handle;
@@ -203,9 +191,9 @@ static void uv__udp_recvmsg(uv_loop_t* loop, uv__io_t* w, int revents) {
   int flags;
   int count;
 
-  handle = container_of(w, uv_udp_t, read_watcher);
+  handle = container_of(w, uv_udp_t, io_watcher);
   assert(handle->type == UV_UDP);
-  assert(revents & UV__IO_READ);
+  assert(revents & UV__POLLIN);
 
   assert(handle->recv_cb != NULL);
   assert(handle->alloc_cb != NULL);
@@ -228,7 +216,7 @@ static void uv__udp_recvmsg(uv_loop_t* loop, uv__io_t* w, int revents) {
     h.msg_iovlen = 1;
 
     do {
-      nread = recvmsg(handle->fd, &h, 0);
+      nread = recvmsg(handle->io_watcher.fd, &h, 0);
     }
     while (nread == -1 && errno == EINTR);
 
@@ -258,17 +246,19 @@ static void uv__udp_recvmsg(uv_loop_t* loop, uv__io_t* w, int revents) {
   /* recv_cb callback may decide to pause or close the handle */
   while (nread != -1
       && count-- > 0
-      && handle->fd != -1
+      && handle->io_watcher.fd != -1
       && handle->recv_cb != NULL);
 }
 
 
-static void uv__udp_sendmsg(uv_loop_t* loop, uv__io_t* w, int revents) {
+static void uv__udp_sendmsg(uv_loop_t* loop,
+                            uv__io_t* w,
+                            unsigned int revents) {
   uv_udp_t* handle;
 
-  handle = container_of(w, uv_udp_t, write_watcher);
+  handle = container_of(w, uv_udp_t, io_watcher);
   assert(handle->type == UV_UDP);
-  assert(revents & UV__IO_WRITE);
+  assert(revents & UV__POLLOUT);
 
   assert(!ngx_queue_empty(&handle->write_queue)
       || !ngx_queue_empty(&handle->write_completed_queue));
@@ -281,11 +271,14 @@ static void uv__udp_sendmsg(uv_loop_t* loop, uv__io_t* w, int revents) {
 
   if (!ngx_queue_empty(&handle->write_completed_queue)) {
     /* Schedule completion callbacks. */
-    uv__io_feed(handle->loop, &handle->write_watcher, UV__IO_WRITE);
+    uv__io_feed(handle->loop, &handle->io_watcher);
   }
   else if (ngx_queue_empty(&handle->write_queue)) {
     /* Pending queue and completion queue empty, stop watcher. */
-    uv__udp_stop_watcher(handle, &handle->write_watcher);
+    uv__io_stop(loop, &handle->io_watcher, UV__POLLOUT);
+
+    if (!uv__io_active(&handle->io_watcher, UV__POLLIN))
+      uv__handle_stop(handle);
   }
 }
 
@@ -316,15 +309,15 @@ static int uv__bind(uv_udp_t* handle,
     goto out;
   }
 
-  if (handle->fd == -1) {
+  if (handle->io_watcher.fd == -1) {
     if ((fd = uv__socket(domain, SOCK_DGRAM, 0)) == -1) {
       uv__set_sys_error(handle->loop, errno);
       goto out;
     }
-    handle->fd = fd;
+    handle->io_watcher.fd = fd;
   }
 
-  fd = handle->fd;
+  fd = handle->io_watcher.fd;
   yes = 1;
   if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof yes) == -1) {
     uv__set_sys_error(handle->loop, errno);
@@ -365,12 +358,13 @@ static int uv__bind(uv_udp_t* handle,
     goto out;
   }
 
+  handle->io_watcher.fd = fd;
   status = 0;
 
 out:
   if (status) {
-    close(handle->fd);
-    handle->fd = -1;
+    close(handle->io_watcher.fd);
+    handle->io_watcher.fd = -1;
   }
 
   errno = saved_errno;
@@ -384,7 +378,7 @@ static int uv__udp_maybe_deferred_bind(uv_udp_t* handle, int domain) {
 
   assert(domain == AF_INET || domain == AF_INET6);
 
-  if (handle->fd != -1)
+  if (handle->io_watcher.fd != -1)
     return 0;
 
   switch (domain) {
@@ -442,14 +436,11 @@ static int uv__udp_send(uv_udp_send_t* req,
     uv__set_sys_error(handle->loop, ENOMEM);
     return -1;
   }
-  memcpy(req->bufs, bufs, bufcnt * sizeof(bufs[0]));
 
+  memcpy(req->bufs, bufs, bufcnt * sizeof(bufs[0]));
   ngx_queue_insert_tail(&handle->write_queue, &req->queue);
-
-  uv__udp_start_watcher(handle,
-                        &handle->write_watcher,
-                        uv__udp_sendmsg,
-                        UV__IO_WRITE);
+  uv__io_start(handle->loop, &handle->io_watcher, UV__POLLOUT);
+  uv__handle_start(handle);
 
   return 0;
 }
@@ -459,9 +450,10 @@ int uv_udp_init(uv_loop_t* loop, uv_udp_t* handle) {
   memset(handle, 0, sizeof *handle);
 
   uv__handle_init(loop, (uv_handle_t*)handle, UV_UDP);
-  handle->fd = -1;
+  handle->io_watcher.fd = -1;
   ngx_queue_init(&handle->write_queue);
   ngx_queue_init(&handle->write_completed_queue);
+  uv__io_init(&handle->io_watcher, uv__udp_io, -1);
 
   return 0;
 }
@@ -494,7 +486,7 @@ int uv_udp_open(uv_udp_t* handle, uv_os_sock_t sock) {
   status = -1;
 
   /* Check for already active socket. */
-  if (handle->fd != -1) {
+  if (handle->io_watcher.fd != -1) {
     uv__set_artificial_error(handle->loop, UV_EALREADY);
     goto out;
   }
@@ -521,7 +513,7 @@ int uv_udp_open(uv_udp_t* handle, uv_os_sock_t sock) {
   }
 #endif
 
-  handle->fd = sock;
+  handle->io_watcher.fd = sock;
   status = 0;
 
 out:
@@ -557,7 +549,7 @@ int uv_udp_set_membership(uv_udp_t* handle, const char* multicast_addr,
     return -1;
   }
 
-  if (setsockopt(handle->fd, IPPROTO_IP, optname, (void*) &mreq, sizeof mreq) == -1) {
+  if (setsockopt(handle->io_watcher.fd, IPPROTO_IP, optname, (void*) &mreq, sizeof mreq) == -1) {
     uv__set_sys_error(handle->loop, errno);
     return -1;
   }
@@ -576,7 +568,7 @@ static int uv__setsockopt_maybe_char(uv_udp_t* handle, int option, int val) {
   if (val < 0 || val > 255)
     return uv__set_sys_error(handle->loop, EINVAL);
 
-  if (setsockopt(handle->fd, IPPROTO_IP, option, &arg, sizeof(arg)))
+  if (setsockopt(handle->io_watcher.fd, IPPROTO_IP, option, &arg, sizeof(arg)))
     return uv__set_sys_error(handle->loop, errno);
 
   return 0;
@@ -584,7 +576,7 @@ static int uv__setsockopt_maybe_char(uv_udp_t* handle, int option, int val) {
 
 
 int uv_udp_set_broadcast(uv_udp_t* handle, int on) {
-  if (setsockopt(handle->fd, SOL_SOCKET, SO_BROADCAST, &on, sizeof(on)))
+  if (setsockopt(handle->io_watcher.fd, SOL_SOCKET, SO_BROADCAST, &on, sizeof(on)))
     return uv__set_sys_error(handle->loop, errno);
 
   return 0;
@@ -595,7 +587,7 @@ int uv_udp_set_ttl(uv_udp_t* handle, int ttl) {
   if (ttl < 1 || ttl > 255)
     return uv__set_sys_error(handle->loop, EINVAL);
 
-  if (setsockopt(handle->fd, IPPROTO_IP, IP_TTL, &ttl, sizeof(ttl)))
+  if (setsockopt(handle->io_watcher.fd, IPPROTO_IP, IP_TTL, &ttl, sizeof(ttl)))
     return uv__set_sys_error(handle->loop, errno);
 
   return 0;
@@ -620,7 +612,7 @@ int uv_udp_getsockname(uv_udp_t* handle, struct sockaddr* name, int* namelen) {
   /* Don't clobber errno. */
   saved_errno = errno;
 
-  if (handle->fd < 0) {
+  if (handle->io_watcher.fd == -1) {
     uv__set_sys_error(handle->loop, EINVAL);
     rv = -1;
     goto out;
@@ -629,7 +621,7 @@ int uv_udp_getsockname(uv_udp_t* handle, struct sockaddr* name, int* namelen) {
   /* sizeof(socklen_t) != sizeof(int) on some systems. */
   socklen = (socklen_t)*namelen;
 
-  if (getsockname(handle->fd, name, &socklen) == -1) {
+  if (getsockname(handle->io_watcher.fd, name, &socklen) == -1) {
     uv__set_sys_error(handle->loop, errno);
     rv = -1;
   } else {
@@ -682,7 +674,7 @@ int uv_udp_recv_start(uv_udp_t* handle,
     return -1;
   }
 
-  if (uv__io_active(&handle->read_watcher)) {
+  if (uv__io_active(&handle->io_watcher, UV__POLLIN)) {
     uv__set_artificial_error(handle->loop, UV_EALREADY);
     return -1;
   }
@@ -693,18 +685,21 @@ int uv_udp_recv_start(uv_udp_t* handle,
   handle->alloc_cb = alloc_cb;
   handle->recv_cb = recv_cb;
 
-  uv__udp_start_watcher(handle,
-                        &handle->read_watcher,
-                        uv__udp_recvmsg,
-                        UV__IO_READ);
+  uv__io_start(handle->loop, &handle->io_watcher, UV__POLLIN);
+  uv__handle_start(handle);
 
   return 0;
 }
 
 
 int uv_udp_recv_stop(uv_udp_t* handle) {
-  uv__udp_stop_watcher(handle, &handle->read_watcher);
+  uv__io_stop(handle->loop, &handle->io_watcher, UV__POLLIN);
+
+  if (!uv__io_active(&handle->io_watcher, UV__POLLOUT))
+    uv__handle_stop(handle);
+
   handle->alloc_cb = NULL;
   handle->recv_cb = NULL;
+
   return 0;
 }
diff --git a/deps/uv/src/win/error.c b/deps/uv/src/win/error.c
index a9e0e7fbdf..fbfc78eaa2 100644
--- a/deps/uv/src/win/error.c
+++ b/deps/uv/src/win/error.c
@@ -74,6 +74,7 @@ uv_err_code uv_translate_sys_error(int sys_errno) {
     case ERROR_DISK_CORRUPT:                return UV_EIO;
     case ERROR_EOM_OVERFLOW:                return UV_EIO;
     case ERROR_FILEMARK_DETECTED:           return UV_EIO;
+    case ERROR_GEN_FAILURE:                 return UV_EIO;
     case ERROR_INVALID_BLOCK_LENGTH:        return UV_EIO;
     case ERROR_IO_DEVICE:                   return UV_EIO;
     case ERROR_NO_DATA_DETECTED:            return UV_EIO;
diff --git a/deps/uv/test/benchmark-async-pummel.c b/deps/uv/test/benchmark-async-pummel.c
index 49cf442b08..2f318967ec 100644
--- a/deps/uv/test/benchmark-async-pummel.c
+++ b/deps/uv/test/benchmark-async-pummel.c
@@ -25,19 +25,24 @@
 #include <stdio.h>
 #include <stdlib.h>
 
-#define NUM_PINGS (1000 * 1000)
+#define NUM_PINGS               (1000 * 1000)
+#define ACCESS_ONCE(type, var)  (*(volatile type*) &(var))
 
 static unsigned int callbacks;
 static volatile int done;
 
+static const char running[] = "running";
+static const char stop[]    = "stop";
+static const char stopped[] = "stopped";
+
 
 static void async_cb(uv_async_t* handle, int status) {
   if (++callbacks == NUM_PINGS) {
     /* Tell the pummel thread to stop. */
-    handle->data = (void*) (intptr_t) 1;
+    ACCESS_ONCE(const char*, handle->data) = stop;
 
     /* Wait for for the pummel thread to acknowledge that it has stoppped. */
-    while (*(volatile intptr_t*) &handle->data < 2)
+    while (ACCESS_ONCE(const char*, handle->data) != stopped)
       uv_sleep(0);
 
     uv_close((uv_handle_t*) handle, NULL);
@@ -48,11 +53,11 @@ static void async_cb(uv_async_t* handle, int status) {
 static void pummel(void* arg) {
   uv_async_t* handle = (uv_async_t*) arg;
 
-  while (*(volatile intptr_t*) &handle->data == 0)
+  while (ACCESS_ONCE(const char*, handle->data) == running)
     uv_async_send(handle);
 
   /* Acknowledge that we've seen handle->data change. */
-  handle->data = (void*) (intptr_t) 2;
+  ACCESS_ONCE(const char*, handle->data) = stopped;
 }
 
 
@@ -66,7 +71,7 @@ static int test_async_pummel(int nthreads) {
   ASSERT(tids != NULL);
 
   ASSERT(0 == uv_async_init(uv_default_loop(), &handle, async_cb));
-  handle.data = NULL;
+  ACCESS_ONCE(const char*, handle.data) = running;
 
   for (i = 0; i < nthreads; i++)
     ASSERT(0 == uv_thread_create(tids + i, pummel, &handle));
@@ -81,7 +86,8 @@ static int test_async_pummel(int nthreads) {
   for (i = 0; i < nthreads; i++)
     ASSERT(0 == uv_thread_join(tids + i));
 
-  printf("%s callbacks in %.2f seconds (%s/sec)\n",
+  printf("async_pummel_%d: %s callbacks in %.2f seconds (%s/sec)\n",
+         nthreads,
          fmt(callbacks),
          time / 1e9,
          fmt(callbacks / (time / 1e9)));
diff --git a/deps/uv/test/benchmark-async.c b/deps/uv/test/benchmark-async.c
index 649b1c5b01..7d37ab415e 100644
--- a/deps/uv/test/benchmark-async.c
+++ b/deps/uv/test/benchmark-async.c
@@ -107,7 +107,8 @@ static int test_async(int nthreads) {
     ASSERT(ctx->main_seen == (unsigned int) NUM_PINGS);
   }
 
-  printf("%.2f sec (%s/sec)\n",
+  printf("async%d: %.2f sec (%s/sec)\n",
+         nthreads,
          time / 1e9,
          fmt(NUM_PINGS / (time / 1e9)));
 
diff --git a/deps/uv/test/benchmark-million-timers.c b/deps/uv/test/benchmark-million-timers.c
index 3f3fab783c..b51c7cdfc6 100644
--- a/deps/uv/test/benchmark-million-timers.c
+++ b/deps/uv/test/benchmark-million-timers.c
@@ -25,6 +25,7 @@
 #define NUM_TIMERS (1000 * 1000)
 
 static int timer_cb_called;
+static int close_cb_called;
 
 
 static void timer_cb(uv_timer_t* handle, int status) {
@@ -32,6 +33,11 @@ static void timer_cb(uv_timer_t* handle, int status) {
 }
 
 
+static void close_cb(uv_handle_t* handle) {
+  close_cb_called++;
+}
+
+
 BENCHMARK_IMPL(million_timers) {
   uv_timer_t* timers;
   uv_loop_t* loop;
@@ -56,7 +62,12 @@ BENCHMARK_IMPL(million_timers) {
   ASSERT(0 == uv_run(loop));
   after = uv_hrtime();
 
+  for (i = 0; i < NUM_TIMERS; i++)
+    uv_close((uv_handle_t*) (timers + i), close_cb);
+
+  ASSERT(0 == uv_run(loop));
   ASSERT(timer_cb_called == NUM_TIMERS);
+  ASSERT(close_cb_called == NUM_TIMERS);
   free(timers);
 
   LOGF("%.2f seconds\n", (after - before) / 1e9);
diff --git a/deps/uv/test/benchmark-multi-accept.c b/deps/uv/test/benchmark-multi-accept.c
index a7847502a4..36a004bcb5 100644
--- a/deps/uv/test/benchmark-multi-accept.c
+++ b/deps/uv/test/benchmark-multi-accept.c
@@ -204,10 +204,6 @@ static void send_listen_handles(uv_handle_type type,
     ASSERT(0 == uv_tcp_init(loop, (uv_tcp_t*) &ctx.server_handle));
     ASSERT(0 == uv_tcp_bind((uv_tcp_t*) &ctx.server_handle, listen_addr));
   }
-  else if (type == UV_NAMED_PIPE) {
-    ASSERT(0 == uv_pipe_init(loop, (uv_pipe_t*) &ctx.server_handle, 0));
-    ASSERT(0 == uv_pipe_bind((uv_pipe_t*) &ctx.server_handle, IPC_PIPE_NAME));
-  }
   else
     ASSERT(0);
 
diff --git a/deps/uv/test/benchmark-pump.c b/deps/uv/test/benchmark-pump.c
index 613b0abc81..2394425355 100644
--- a/deps/uv/test/benchmark-pump.c
+++ b/deps/uv/test/benchmark-pump.c
@@ -203,11 +203,9 @@ static void do_write(uv_stream_t* stream) {
   buf.base = (char*) &write_buffer;
   buf.len = sizeof write_buffer;
 
-  while (stream->write_queue_size == 0) {
-    req = (uv_write_t*) req_alloc();
-    r = uv_write(req, stream, &buf, 1, write_cb);
-    ASSERT(r == 0);
-  }
+  req = (uv_write_t*) req_alloc();
+  r = uv_write(req, stream, &buf, 1, write_cb);
+  ASSERT(r == 0);
 }
 
 
diff --git a/deps/uv/test/benchmark-udp-pummel.c b/deps/uv/test/benchmark-udp-pummel.c
index d14b812265..820f455a63 100644
--- a/deps/uv/test/benchmark-udp-pummel.c
+++ b/deps/uv/test/benchmark-udp-pummel.c
@@ -143,9 +143,9 @@ static void timeout_cb(uv_timer_t* timer, int status) {
 }
 
 
-static int do_packet_storm(unsigned int n_senders,
-                           unsigned int n_receivers,
-                           unsigned long timeout) {
+static int pummel(unsigned int n_senders,
+                  unsigned int n_receivers,
+                  unsigned long timeout) {
   uv_timer_t timer_handle;
   uint64_t duration;
   uv_loop_t* loop;
@@ -200,7 +200,7 @@ static int do_packet_storm(unsigned int n_senders,
   /* convert from nanoseconds to milliseconds */
   duration = duration / (uint64_t) 1e6;
 
-  printf("udp_packet_storm_%dv%d: %.0f/s received, %.0f/s sent. "
+  printf("udp_pummel_%dv%d: %.0f/s received, %.0f/s sent. "
          "%u received, %u sent in %.1f seconds.\n",
          n_receivers,
          n_senders,
@@ -217,10 +217,10 @@ static int do_packet_storm(unsigned int n_senders,
 
 #define X(a, b)                                                               \
   BENCHMARK_IMPL(udp_pummel_##a##v##b) {                                      \
-    return do_packet_storm(a, b, 0);                                          \
+    return pummel(a, b, 0);                                                   \
   }                                                                           \
   BENCHMARK_IMPL(udp_timed_pummel_##a##v##b) {                                \
-    return do_packet_storm(a, b, TEST_DURATION);                              \
+    return pummel(a, b, TEST_DURATION);                                       \
   }
 
 X(1, 1)
diff --git a/deps/uv/test/runner-unix.c b/deps/uv/test/runner-unix.c
index 1a54a1adb9..77c68dcd6c 100644
--- a/deps/uv/test/runner-unix.c
+++ b/deps/uv/test/runner-unix.c
@@ -40,11 +40,14 @@
 
 /* Do platform-specific initialization. */
 void platform_init(int argc, char **argv) {
+  const char* var = getenv("UV_RUN_AS_ROOT");
+
   /* Running the tests as root is not smart - don't do it. */
-  if (getuid() == 0) {
+  if (getuid() == 0 && (var == NULL || atoi(var) <= 0)) {
     fprintf(stderr, "Running the tests as root is not safe.\n");
     exit(1);
   }
+
   /* Disable stdio output buffering. */
   setvbuf(stdout, NULL, _IONBF, 0);
   setvbuf(stderr, NULL, _IONBF, 0);
diff --git a/deps/uv/test/test-async.c b/deps/uv/test/test-async.c
index efcfe15a24..26194a1fd3 100644
--- a/deps/uv/test/test-async.c
+++ b/deps/uv/test/test-async.c
@@ -50,6 +50,21 @@ void thread_cb(void *arg) {
 
     r = uv_async_send(&async);
     ASSERT(r == 0);
+
+    /* Work around a bug in Valgrind.
+     *
+     * Valgrind runs threads not in parallel but sequentially, i.e. one after
+     * the other. It also doesn't preempt them, instead it depends on threads
+     * yielding voluntarily by making a syscall.
+     *
+     * That never happens here: the pipe that is associated with the async
+     * handle is written to once but that's too early for Valgrind's scheduler
+     * to kick in. Afterwards, the thread busy-loops, starving the main thread.
+     * Therefore, we yield.
+     *
+     * This behavior has been observed with Valgrind 3.7.0 and 3.9.0.
+     */
+    uv_sleep(0);
   }
 }
 
diff --git a/deps/uv/test/test-fs-event.c b/deps/uv/test/test-fs-event.c
index d741b399bb..0599c88e4c 100644
--- a/deps/uv/test/test-fs-event.c
+++ b/deps/uv/test/test-fs-event.c
@@ -112,7 +112,7 @@ static void fs_event_cb_file(uv_fs_event_t* handle, const char* filename,
   uv_close((uv_handle_t*)handle, close_cb);
 }
 
-static void timber_cb_close_handle(uv_timer_t* timer, int status) {
+static void timer_cb_close_handle(uv_timer_t* timer, int status) {
   uv_handle_t* handle;
 
   ASSERT(timer != NULL);
@@ -138,7 +138,7 @@ static void fs_event_cb_file_current_dir(uv_fs_event_t* handle,
     static uv_timer_t timer;
     uv_timer_init(handle->loop, &timer);
     timer.data = handle;
-    uv_timer_start(&timer, timber_cb_close_handle, 250, 0);
+    uv_timer_start(&timer, timer_cb_close_handle, 250, 0);
   }
 }
 
diff --git a/deps/uv/test/test-fs-poll.c b/deps/uv/test/test-fs-poll.c
index a3dede64e3..20436cbedd 100644
--- a/deps/uv/test/test-fs-poll.c
+++ b/deps/uv/test/test-fs-poll.c
@@ -76,7 +76,9 @@ static void poll_cb(uv_fs_poll_t* handle,
                     int status,
                     const uv_statbuf_t* prev,
                     const uv_statbuf_t* curr) {
-  const static uv_statbuf_t zero_statbuf;
+  uv_statbuf_t zero_statbuf;
+
+  memset(&zero_statbuf, 0, sizeof(zero_statbuf));
 
   ASSERT(handle == &poll_handle);
   ASSERT(uv_is_active((uv_handle_t*)handle));
diff --git a/deps/uv/test/test-getsockname.c b/deps/uv/test/test-getsockname.c
index a6f8a8126c..043c891c5a 100644
--- a/deps/uv/test/test-getsockname.c
+++ b/deps/uv/test/test-getsockname.c
@@ -105,7 +105,7 @@ static void check_sockname(struct sockaddr* addr, const char* compare_ip,
 static void on_connection(uv_stream_t* server, int status) {
   struct sockaddr sockname, peername;
   int namelen;
-  uv_handle_t* handle;
+  uv_tcp_t* handle;
   int r;
 
   if (status != 0) {
@@ -114,10 +114,10 @@ static void on_connection(uv_stream_t* server, int status) {
   }
   ASSERT(status == 0);
 
-  handle = (uv_handle_t*) malloc(sizeof(uv_tcp_t));
+  handle = malloc(sizeof(*handle));
   ASSERT(handle != NULL);
 
-  r = uv_tcp_init(loop, (uv_tcp_t*)handle);
+  r = uv_tcp_init(loop, handle);
   ASSERT(r == 0);
 
   /* associate server with stream */
@@ -127,13 +127,13 @@ static void on_connection(uv_stream_t* server, int status) {
   ASSERT(r == 0);
 
   namelen = sizeof sockname;
-  r = uv_tcp_getsockname((uv_tcp_t*) handle, &sockname, &namelen);
+  r = uv_tcp_getsockname(handle, &sockname, &namelen);
   ASSERT(r == 0);
   check_sockname(&sockname, "127.0.0.1", server_port, "accepted socket");
   getsocknamecount++;
 
   namelen = sizeof peername;
-  r = uv_tcp_getpeername((uv_tcp_t*) handle, &peername, &namelen);
+  r = uv_tcp_getpeername(handle, &peername, &namelen);
   ASSERT(r == 0);
   check_sockname(&peername, "127.0.0.1", connect_port, "accepted socket peer");
   getpeernamecount++;
diff --git a/deps/uv/test/test-spawn.c b/deps/uv/test/test-spawn.c
index d18464d872..48ab239bb5 100644
--- a/deps/uv/test/test-spawn.c
+++ b/deps/uv/test/test-spawn.c
@@ -402,7 +402,9 @@ TEST_IMPL(spawn_preserve_env) {
   options.stdio[1].data.stream = (uv_stream_t*) &out;
   options.stdio_count = 2;
 
-  ASSERT(setenv("ENV_TEST", "testval", 1) == 0);
+  r = putenv("ENV_TEST=testval");
+  ASSERT(r == 0);
+
   /* Explicitly set options.env to NULL to test for env clobbering. */
   options.env = NULL;
 
diff --git a/deps/uv/test/test-tcp-unexpected-read.c b/deps/uv/test/test-tcp-unexpected-read.c
index 772746bc9c..71db558d8a 100644
--- a/deps/uv/test/test-tcp-unexpected-read.c
+++ b/deps/uv/test/test-tcp-unexpected-read.c
@@ -77,7 +77,6 @@ static void connection_cb(uv_stream_t* handle, int status) {
   buf = uv_buf_init("PING", 4);
 
   ASSERT(0 == status);
-  ASSERT(0 == uv_tcp_init(uv_default_loop(), &peer_handle));
   ASSERT(0 == uv_accept(handle, (uv_stream_t*) &peer_handle));
   ASSERT(0 == uv_read_start((uv_stream_t*) &peer_handle, alloc_cb, read_cb));
   ASSERT(0 == uv_write(&write_req, (uv_stream_t*) &peer_handle,
@@ -98,6 +97,7 @@ TEST_IMPL(tcp_unexpected_read) {
   ASSERT(0 == uv_check_start(&check_handle, check_cb));
   ASSERT(0 == uv_tcp_init(loop, &server_handle));
   ASSERT(0 == uv_tcp_init(loop, &client_handle));
+  ASSERT(0 == uv_tcp_init(loop, &peer_handle));
   ASSERT(0 == uv_tcp_bind(&server_handle, addr));
   ASSERT(0 == uv_listen((uv_stream_t*) &server_handle, 1, connection_cb));
   ASSERT(0 == uv_tcp_connect(&connect_req, &client_handle, addr, connect_cb));
diff --git a/deps/uv/uv.gyp b/deps/uv/uv.gyp
index 4c1a3a21e1..0fa277da4a 100644
--- a/deps/uv/uv.gyp
+++ b/deps/uv/uv.gyp
@@ -9,11 +9,9 @@
         ],
         'conditions': [
           ['OS=="solaris"', {
-            'cflags': ['-pthreads'],
-            'ldlags': ['-pthreads'],
+            'cflags': [ '-pthreads' ],
           }, {
-            'cflags': ['-pthread'],
-            'ldlags': ['-pthread'],
+            'cflags': [ '-pthread' ],
           }],
         ],
       }],
@@ -38,12 +36,11 @@
           ['OS == "mac"', {
             'defines': [ '_DARWIN_USE_64_BIT_INODE=1' ],
           }],
-          ['OS == "linux"', {
-            'libraries': [ '-ldl' ],
-          }],
         ],
       },
-
+      'defines': [
+        'HAVE_CONFIG_H'
+      ],
       'sources': [
         'common.gypi',
         'include/uv.h',
@@ -112,7 +109,6 @@
             '-Wno-unused-parameter'
           ],
           'sources': [
-            'include/uv-private/ev.h',
             'include/uv-private/uv-unix.h',
             'include/uv-private/uv-linux.h',
             'include/uv-private/uv-sunos.h',
@@ -122,10 +118,6 @@
             'src/unix/core.c',
             'src/unix/dl.c',
             'src/unix/error.c',
-            'src/unix/ev/ev.c',
-            'src/unix/ev/ev_vars.h',
-            'src/unix/ev/ev_wrap.h',
-            'src/unix/ev/event.h',
             'src/unix/fs.c',
             'src/unix/getaddrinfo.c',
             'src/unix/internal.h',
@@ -143,19 +135,31 @@
             'src/unix/tty.c',
             'src/unix/udp.c',
           ],
-          'include_dirs': [ 'src/unix/ev', ],
-          'libraries': [ '-lm' ]
+          'link_settings': {
+            'libraries': [ '-lm' ],
+            'conditions': [
+              ['OS=="solaris"', {
+                'ldflags': [ '-pthreads' ],
+              }, {
+                'ldflags': [ '-pthread' ],
+              }],
+            ],
+          },
+          'conditions': [
+            ['"<(library)" == "shared_library"', {
+              'cflags': [ '-fPIC' ],
+            }],
+          ],
         }],
         [ 'OS=="mac"', {
           'sources': [ 'src/unix/darwin.c', 'src/unix/fsevents.c' ],
-          'direct_dependent_settings': {
+          'link_settings': {
             'libraries': [
               '$(SDKROOT)/System/Library/Frameworks/CoreServices.framework',
             ],
           },
           'defines': [
             '_DARWIN_USE_64_BIT_INODE=1',
-            'EV_CONFIG_H="config_darwin.h"',
           ]
         }],
         [ 'OS=="linux"', {
@@ -165,11 +169,8 @@
             'src/unix/linux/syscalls.c',
             'src/unix/linux/syscalls.h',
           ],
-          'defines': [
-            'EV_CONFIG_H="config_linux.h"',
-          ],
-          'direct_dependent_settings': {
-            'libraries': [ '-lrt' ],
+          'link_settings': {
+            'libraries': [ '-ldl', '-lrt' ],
           },
         }],
         [ 'OS=="solaris"', {
@@ -177,9 +178,8 @@
           'defines': [
             '__EXTENSIONS__',
             '_XOPEN_SOURCE=500',
-            'EV_CONFIG_H="config_sunos.h"',
           ],
-          'direct_dependent_settings': {
+          'link_settings': {
             'libraries': [
               '-lkstat',
               '-lnsl',
@@ -194,9 +194,8 @@
           'defines': [
             '_ALL_SOURCE',
             '_XOPEN_SOURCE=500',
-            'EV_CONFIG_H="config_aix.h"',
           ],
-          'direct_dependent_settings': {
+          'link_settings': {
             'libraries': [
               '-lperfstat',
             ],
@@ -204,10 +203,7 @@
         }],
         [ 'OS=="freebsd"', {
           'sources': [ 'src/unix/freebsd.c' ],
-          'defines': [
-            'EV_CONFIG_H="config_freebsd.h"',
-          ],
-          'direct_dependent_settings': {
+          'link_settings': {
             'libraries': [
               '-lkvm',
             ],
@@ -215,16 +211,10 @@
         }],
         [ 'OS=="openbsd"', {
           'sources': [ 'src/unix/openbsd.c' ],
-          'defines': [
-            'EV_CONFIG_H="config_openbsd.h"',
-          ],
         }],
         [ 'OS=="netbsd"', {
           'sources': [ 'src/unix/netbsd.c' ],
-          'defines': [
-            'EV_CONFIG_H="config_netbsd.h"',
-          ],
-          'direct_dependent_settings': {
+          'link_settings': {
             'libraries': [
               '-lkvm',
             ],