libgnurl.m4 (10356B)
1 # LIBGNURL_CHECK_CONFIG ([DEFAULT-ACTION], [MINIMUM-VERSION], 2 # [ACTION-IF-YES], [ACTION-IF-NO]) 3 # ---------------------------------------------------------- 4 # David Shaw <dshaw@jabberwocky.com> May-09-2006 5 # 6 # Checks for libgnurl. DEFAULT-ACTION is the string yes or no to 7 # specify whether to default to --with-libgnurl or --without-libgnurl. 8 # If not supplied, DEFAULT-ACTION is yes. MINIMUM-VERSION is the 9 # minimum version of libgnurl to accept. Pass the version as a regular 10 # version number like 7.10.1. If not supplied, any version is 11 # accepted. ACTION-IF-YES is a list of shell commands to run if 12 # libgnurl was successfully found and passed the various tests. 13 # ACTION-IF-NO is a list of shell commands that are run otherwise. 14 # Note that using --without-libgnurl does run ACTION-IF-NO. 15 # 16 # This macro #defines HAVE_LIBGNURL if a working libgnurl setup is 17 # found, and sets @LIBGNURL@ and @LIBGNURL_CPPFLAGS@ to the necessary 18 # values. Other useful defines are LIBGNURL_FEATURE_xxx where xxx are 19 # the various features supported by libgnurl, and LIBGNURL_PROTOCOL_yyy 20 # where yyy are the various protocols supported by libgnurl. Both xxx 21 # and yyy are capitalized. See the list of AH_TEMPLATEs at the top of 22 # the macro for the complete list of possible defines. Shell 23 # variables $libgnurl_feature_xxx and $libgnurl_protocol_yyy are also 24 # defined to 'yes' for those features and protocols that were found. 25 # Note that xxx and yyy keep the same capitalization as in the 26 # gnurl-config list (e.g. it's "HTTP" and not "http"). 27 # 28 # Users may override the detected values by doing something like: 29 # LIBGNURL="-lgnurl" LIBGNURL_CPPFLAGS="-I/usr/myinclude" ./configure 30 # 31 # For the sake of sanity, this macro assumes that any libgnurl that is 32 # found is after version 7.7.2, the first version that included the 33 # gnurl-config script. Note that it is very important for people 34 # packaging binary versions of libgnurl to include this script! 35 # Without gnurl-config, we can only guess what protocols are available, 36 # or use gnurl_version_info to figure it out at runtime. 37 38 AC_DEFUN([LIBGNURL_CHECK_CONFIG], 39 [ 40 AH_TEMPLATE([LIBGNURL_FEATURE_SSL],[Defined if libgnurl supports SSL]) 41 AH_TEMPLATE([LIBGNURL_FEATURE_KRB4],[Defined if libgnurl supports KRB4]) 42 AH_TEMPLATE([LIBGNURL_FEATURE_IPV6],[Defined if libgnurl supports IPv6]) 43 AH_TEMPLATE([LIBGNURL_FEATURE_LIBZ],[Defined if libgnurl supports libz]) 44 AH_TEMPLATE([LIBGNURL_FEATURE_ASYNCHDNS],[Defined if libgnurl supports AsynchDNS]) 45 AH_TEMPLATE([LIBGNURL_FEATURE_IDN],[Defined if libgnurl supports IDN]) 46 AH_TEMPLATE([LIBGNURL_FEATURE_SSPI],[Defined if libgnurl supports SSPI]) 47 AH_TEMPLATE([LIBGNURL_FEATURE_NTLM],[Defined if libgnurl supports NTLM]) 48 49 AH_TEMPLATE([LIBGNURL_PROTOCOL_HTTP],[Defined if libgnurl supports HTTP]) 50 AH_TEMPLATE([LIBGNURL_PROTOCOL_HTTPS],[Defined if libgnurl supports HTTPS]) 51 AH_TEMPLATE([LIBGNURL_PROTOCOL_FTP],[Defined if libgnurl supports FTP]) 52 AH_TEMPLATE([LIBGNURL_PROTOCOL_FTPS],[Defined if libgnurl supports FTPS]) 53 AH_TEMPLATE([LIBGNURL_PROTOCOL_FILE],[Defined if libgnurl supports FILE]) 54 AH_TEMPLATE([LIBGNURL_PROTOCOL_TELNET],[Defined if libgnurl supports TELNET]) 55 AH_TEMPLATE([LIBGNURL_PROTOCOL_LDAP],[Defined if libgnurl supports LDAP]) 56 AH_TEMPLATE([LIBGNURL_PROTOCOL_DICT],[Defined if libgnurl supports DICT]) 57 AH_TEMPLATE([LIBGNURL_PROTOCOL_TFTP],[Defined if libgnurl supports TFTP]) 58 AH_TEMPLATE([LIBGNURL_PROTOCOL_RTSP],[Defined if libgnurl supports RTSP]) 59 AH_TEMPLATE([LIBGNURL_PROTOCOL_POP3],[Defined if libgnurl supports POP3]) 60 AH_TEMPLATE([LIBGNURL_PROTOCOL_IMAP],[Defined if libgnurl supports IMAP]) 61 AH_TEMPLATE([LIBGNURL_PROTOCOL_SMTP],[Defined if libgnurl supports SMTP]) 62 63 AC_ARG_WITH(libgnurl, 64 AC_HELP_STRING([--with-libgnurl=PREFIX],[look for the gnurl library in PREFIX/lib and headers in PREFIX/include]), 65 [_libgnurl_with=$withval],[_libgnurl_with=ifelse([$1],,[yes],[$1])]) 66 67 if test "$_libgnurl_with" != "no" ; then 68 69 AC_PROG_AWK 70 71 _libgnurl_version_parse="eval $AWK '{split(\$NF,A,\".\"); X=256*256*A[[1]]+256*A[[2]]+A[[3]]; print X;}'" 72 73 _libgnurl_try_link=yes 74 75 if test -d "$_libgnurl_with" ; then 76 LIBGNURL_CPPFLAGS="-I$withval/include" 77 _libgnurl_ldflags="-L$withval/lib" 78 AC_PATH_PROG([_libgnurl_config],[gnurl-config],[], 79 ["$withval/bin"]) 80 else 81 AC_PATH_PROG([_libgnurl_config],[gnurl-config],[],[$PATH]) 82 fi 83 84 if test x$_libgnurl_config != "x" ; then 85 AC_CACHE_CHECK([for the version of libgnurl], 86 [libgnurl_cv_lib_gnurl_version], 87 [libgnurl_cv_lib_gnurl_version=`$_libgnurl_config --version | $AWK '{print $[]2}'`]) 88 89 _libgnurl_version=`echo $libgnurl_cv_lib_gnurl_version | $_libgnurl_version_parse` 90 _libgnurl_wanted=`echo ifelse([$2],,[0],[$2]) | $_libgnurl_version_parse` 91 92 if test $_libgnurl_wanted -gt 0 ; then 93 AC_CACHE_CHECK([for libgnurl >= version $2], 94 [libgnurl_cv_lib_version_ok], 95 [ 96 if test $_libgnurl_version -ge $_libgnurl_wanted ; then 97 libgnurl_cv_lib_version_ok=yes 98 else 99 libgnurl_cv_lib_version_ok=no 100 fi 101 ]) 102 fi 103 104 if test $_libgnurl_wanted -eq 0 || test x$libgnurl_cv_lib_version_ok = xyes ; then 105 if test x"$LIBGNURL_CPPFLAGS" = "x" ; then 106 LIBGNURL_CPPFLAGS=`$_libgnurl_config --cflags` 107 fi 108 if test x"$LIBGNURL" = "x" ; then 109 LIBGNURL=`$_libgnurl_config --libs` 110 111 # This is so silly, but Apple actually has a bug in their 112 # gnurl-config script. Fixed in Tiger, but there are still 113 # lots of Panther installs around. 114 case "${host}" in 115 powerpc-apple-darwin7*) 116 LIBGNURL=`echo $LIBGNURL | sed -e 's|-arch i386||g'` 117 ;; 118 esac 119 fi 120 121 # All gnurl-config scripts support --feature 122 _libgnurl_features=`$_libgnurl_config --feature` 123 124 # Is it modern enough to have --protocols? (7.12.4) 125 if test $_libgnurl_version -ge 461828 ; then 126 _libgnurl_protocols=`$_libgnurl_config --protocols` 127 fi 128 else 129 _libgnurl_try_link=no 130 fi 131 132 unset _libgnurl_wanted 133 fi 134 135 if test $_libgnurl_try_link = yes ; then 136 137 # we didn't find gnurl-config, so let's see if the user-supplied 138 # link line (or failing that, "-lgnurl") is enough. 139 LIBGNURL=${LIBGNURL-"$_libgnurl_ldflags -lgnurl"} 140 141 AC_CACHE_CHECK([whether libgnurl is usable], 142 [libgnurl_cv_lib_gnurl_usable], 143 [ 144 _libgnurl_save_cppflags=$CPPFLAGS 145 CPPFLAGS="$LIBGNURL_CPPFLAGS $CPPFLAGS" 146 _libgnurl_save_libs=$LIBS 147 LIBS="$LIBGNURL $LIBS" 148 149 AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <curl/curl.h>],[ 150 /* Try and use a few common options to force a failure if we are 151 missing symbols or can't link. */ 152 int x; 153 curl_easy_setopt(NULL,CURLOPT_URL,NULL); 154 x=CURL_ERROR_SIZE; 155 x=CURLOPT_WRITEFUNCTION; 156 x=CURLOPT_FILE; 157 x=CURLOPT_ERRORBUFFER; 158 x=CURLOPT_STDERR; 159 x=CURLOPT_VERBOSE; 160 ])],libgnurl_cv_lib_gnurl_usable=yes,libgnurl_cv_lib_gnurl_usable=no) 161 162 CPPFLAGS=$_libgnurl_save_cppflags 163 LIBS=$_libgnurl_save_libs 164 unset _libgnurl_save_cppflags 165 unset _libgnurl_save_libs 166 ]) 167 168 if test $libgnurl_cv_lib_gnurl_usable = yes ; then 169 170 # Does gnurl_free() exist in this version of libgnurl? 171 # If not, fake it with free() 172 173 _libgnurl_save_cppflags=$CPPFLAGS 174 CPPFLAGS="$CPPFLAGS $LIBGNURL_CPPFLAGS" 175 _libgnurl_save_libs=$LIBS 176 LIBS="$LIBS $LIBGNURL" 177 178 AC_CHECK_FUNC(curl_free,, 179 AC_DEFINE(curl_free,free, 180 [Define curl_free() as free() if our version of gnurl lacks curl_free.])) 181 182 CPPFLAGS=$_libgnurl_save_cppflags 183 LIBS=$_libgnurl_save_libs 184 unset _libgnurl_save_cppflags 185 unset _libgnurl_save_libs 186 187 AC_DEFINE(HAVE_LIBGNURL,1, 188 [Define to 1 if you have a functional gnurl library.]) 189 AC_SUBST(LIBGNURL_CPPFLAGS) 190 AC_SUBST(LIBGNURL) 191 192 for _libgnurl_feature in $_libgnurl_features ; do 193 AC_DEFINE_UNQUOTED(AS_TR_CPP(libgnurl_feature_$_libgnurl_feature),[1]) 194 eval AS_TR_SH(libgnurl_feature_$_libgnurl_feature)=yes 195 done 196 197 if test "x$_libgnurl_protocols" = "x" ; then 198 199 # We don't have --protocols, so just assume that all 200 # protocols are available 201 _libgnurl_protocols="HTTP FTP FILE TELNET LDAP DICT TFTP" 202 203 if test x$libgnurl_feature_SSL = xyes ; then 204 _libgnurl_protocols="$_libgnurl_protocols HTTPS" 205 206 # FTPS wasn't standards-compliant until version 207 # 7.11.0 (0x070b00 == 461568) 208 if test $_libgnurl_version -ge 461568; then 209 _libgnurl_protocols="$_libgnurl_protocols FTPS" 210 fi 211 fi 212 213 # RTSP, IMAP, POP3 and SMTP were added in 214 # 7.20.0 (0x071400 == 463872) 215 if test $_libgnurl_version -ge 463872; then 216 _libgnurl_protocols="$_libgnurl_protocols RTSP IMAP POP3 SMTP" 217 fi 218 fi 219 220 for _libgnurl_protocol in $_libgnurl_protocols ; do 221 AC_DEFINE_UNQUOTED(AS_TR_CPP(libgnurl_protocol_$_libgnurl_protocol),[1]) 222 eval AS_TR_SH(libgnurl_protocol_$_libgnurl_protocol)=yes 223 done 224 else 225 unset LIBGNURL 226 unset LIBGNURL_CPPFLAGS 227 fi 228 fi 229 230 unset _libgnurl_try_link 231 unset _libgnurl_version_parse 232 unset _libgnurl_config 233 unset _libgnurl_feature 234 unset _libgnurl_features 235 unset _libgnurl_protocol 236 unset _libgnurl_protocols 237 unset _libgnurl_version 238 unset _libgnurl_ldflags 239 fi 240 241 if test x$_libgnurl_with = xno || test x$libgnurl_cv_lib_gnurl_usable != xyes ; then 242 # This is the IF-NO path 243 ifelse([$4],,:,[$4]) 244 else 245 # This is the IF-YES path 246 ifelse([$3],,:,[$3]) 247 fi 248 249 unset _libgnurl_with 250 ])dnl