commit 3199037e97f0a773626e7621d17fc596de216dce
parent 83a608c546f6751d0847c5b9965c9813cbd96522
Author: Martin Schanzenbach <schanzen@gnunet.org>
Date: Sun, 24 Sep 2023 08:10:08 +0200
BUILD: Meson - add readme, add build options
Diffstat:
3 files changed, 83 insertions(+), 2 deletions(-)
diff --git a/README.meson.md b/README.meson.md
@@ -0,0 +1,37 @@
+# Meson build system
+
+DISCLAIMER: This is a work in progress. The meson build system will be maintained for a brief period alongside autotools.
+
+## Motivation
+
+ - We want to build a single, monolithic library libgnunet that is easier to use in, for example, mobile apps.
+ - Autotools is complex and difficult to use. It also causes stale builds. Meson has a better developer experience.
+ - Meson supports dynamic pkg-config generation.
+ - Meson does out-of-tree builds
+ - Meson makes it (almost) impossible to create dist tarballs that miss files/do not compile.
+
+
+## Reasons to drop it again
+
+ - Meson does not seem to support (automatic) dependency version detection without pkg-config.
+
+
+## TODOs
+
+ - Migrate tests
+ - Portability defines set implicitly in configure.ac need to be identified and ported to meson.
+ - Some (experimental) subsystems not yet ported.
+ - 1:1 match of installed files must be verified.
+ - Documentation must be updated.
+
+## Use
+
+
+```
+$ meson setup $builddir
+$ cd $builddir
+$ meson configure -Dprefix=$string -Dexperimental=$bool -Dmonolith=$bool
+$ meson compile
+$ meson install
+$ meson dist
+```
diff --git a/meson.build b/meson.build
@@ -28,6 +28,21 @@ cdata.set('enable_experimental', get_option('experimental'))
if get_option('experimental')
add_project_arguments('-DHAVE_EXPERIMENTAL', language: 'c')
endif
+logging_opt = get_option('logging')
+if get_option('logging') == 'yes'
+ add_project_arguments('-DGNUNET_EXTRA_LOGGING=0', language: 'c')
+endif
+if get_option('logging') == 'yes'
+ add_project_arguments('-DGNUNET_EXTRA_LOGGING=0', language: 'c')
+ add_project_arguments('-DGNUNET_CULL_LOGGING=1', language: 'c')
+endif
+if get_option('logging') == 'verbose'
+ add_project_arguments('-DGNUNET_EXTRA_LOGGING=1', language: 'c')
+endif
+if get_option('logging') == 'veryverbose'
+ add_project_arguments('-DGNUNET_EXTRA_LOGGING=2', language: 'c')
+endif
+
# FIXME
cdata.set('extractor', 0)
@@ -40,8 +55,9 @@ endif
if cc.has_member ('struct sockaddr_un', 'sun_len', prefix : ['#include <sys/types.h>', '#include <sys/socket.h>', '#include <sys/un.h>'])
add_project_arguments('-DHAVE_SOCKADDR_UN_SUN_LEN', language: 'c')
endif
-
-message('Building on ' + host_machine.system())
+if cc.has_member ('struct tm', 'tm_gmtoff', prefix : ['#include <time.h>'])
+ add_project_arguments('-DHAVE_TM_GMTOFF', language: 'c')
+endif
# TODO:
# - Go through configure.ac and convert all defines/detections
@@ -78,11 +94,13 @@ cdata.set('START_ON_DEMAND', 'YES')
cdata.set_quoted('build_target', host_machine.system())
if host_machine.system() == 'linux'
+ add_project_arguments('-DLINUX', language : 'c')
add_project_link_arguments(['-Wl,--unresolved-symbols=report-all'], language : 'c')
cdata.set_quoted('GNUNET_DEFAULT_INTERFACE', 'eth0')
endif
if host_machine.system() == 'darwin'
cdata.set_quoted('GNUNET_DEFAULT_INTERFACE', 'en0')
+ add_project_arguments('-DDARWIN', language : 'c')
add_project_arguments('-D_APPLE_C_SOURCE', language : 'c')
add_project_arguments('-D__APPLE_USE_RFC_3542', language : 'c')
add_project_arguments('-fno-common', language : 'c')
@@ -261,6 +279,31 @@ if cc.check_header('sys/param.h')
add_project_arguments('-DHAVE_SYS_PARAM_H', language : 'c')
endif
+# TUN
+if cc.check_header('if_tun.h')
+ if cc.has_header_symbol('if_tun.h', 'struct in6_ifreq')
+ add_project_arguments('-DIF_TUN_HDR="if_tun.h"', language : 'c')
+ endif
+endif
+if cc.check_header('linux/if_tun.h')
+ if cc.has_header_symbol('linux/if_tun.h', 'struct in6_ifreq')
+ add_project_arguments('-DIF_TUN_HDR="linux/if_tun.h"', language : 'c')
+ endif
+endif
+if cc.check_header('net/if_tun.h')
+ if cc.has_header_symbol('net/if_tun.h', 'struct in6_ifreq')
+ add_project_arguments('-DIF_TUN_HDR="net/if_tun.h"', language : 'c')
+ endif
+endif
+if cc.check_header('net/tun/if_tun.h')
+ if cc.has_header_symbol('net/tun/if_tun.h', 'struct in6_ifreq')
+ add_project_arguments('-DIF_TUN_HDR="net/tun/if_tun.h"', language : 'c')
+ endif
+endif
+
+
+
+
# NSS
if cc.check_header('nss.h')
add_project_arguments('-DHAVE_GLIBCNSS', language : 'c')
diff --git a/meson.options b/meson.options
@@ -1,4 +1,5 @@
# Build options
option('monolith', type : 'boolean', value : false, description: 'Build a single, monolithic libgnunet shlib')
option('experimental', type : 'boolean', value : false, description: 'Build experimental components')
+option('logging', type : 'string', value: 'yes', description: 'Log setting. Can be set to "yes" (logging, default), "no" (no logging), "verbose" (extra loggin"), veryverbose (even more logging)')
