1 #*************************************************************************** 2 # _ _ ____ _ 3 # Project ___| | | | _ \| | 4 # / __| | | | |_) | | 5 # | (__| |_| | _ <| |___ 6 # \___|\___/|_| \_\_____| 7 # 8 # Copyright (C) 2006, David Shaw <dshaw (a] jabberwocky.com> 9 # 10 # This software is licensed as described in the file COPYING, which 11 # you should have received as part of this distribution. The terms 12 # are also available at https://curl.haxx.se/docs/copyright.html. 13 # 14 # You may opt to use, copy, modify, merge, publish, distribute and/or sell 15 # copies of the Software, and permit persons to whom the Software is 16 # furnished to do so, under the terms of the COPYING file. 17 # 18 # This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY 19 # KIND, either express or implied. 20 # 21 ########################################################################### 22 # LIBCURL_CHECK_CONFIG ([DEFAULT-ACTION], [MINIMUM-VERSION], 23 # [ACTION-IF-YES], [ACTION-IF-NO]) 24 # ---------------------------------------------------------- 25 # David Shaw <dshaw (a] jabberwocky.com> May-09-2006 26 # 27 # Checks for libcurl. DEFAULT-ACTION is the string yes or no to 28 # specify whether to default to --with-libcurl or --without-libcurl. 29 # If not supplied, DEFAULT-ACTION is yes. MINIMUM-VERSION is the 30 # minimum version of libcurl to accept. Pass the version as a regular 31 # version number like 7.10.1. If not supplied, any version is 32 # accepted. ACTION-IF-YES is a list of shell commands to run if 33 # libcurl was successfully found and passed the various tests. 34 # ACTION-IF-NO is a list of shell commands that are run otherwise. 35 # Note that using --without-libcurl does run ACTION-IF-NO. 36 # 37 # This macro #defines HAVE_LIBCURL if a working libcurl setup is 38 # found, and sets @LIBCURL@ and @LIBCURL_CPPFLAGS@ to the necessary 39 # values. Other useful defines are LIBCURL_FEATURE_xxx where xxx are 40 # the various features supported by libcurl, and LIBCURL_PROTOCOL_yyy 41 # where yyy are the various protocols supported by libcurl. Both xxx 42 # and yyy are capitalized. See the list of AH_TEMPLATEs at the top of 43 # the macro for the complete list of possible defines. Shell 44 # variables $libcurl_feature_xxx and $libcurl_protocol_yyy are also 45 # defined to 'yes' for those features and protocols that were found. 46 # Note that xxx and yyy keep the same capitalization as in the 47 # curl-config list (e.g. it's "HTTP" and not "http"). 48 # 49 # Users may override the detected values by doing something like: 50 # LIBCURL="-lcurl" LIBCURL_CPPFLAGS="-I/usr/myinclude" ./configure 51 # 52 # For the sake of sanity, this macro assumes that any libcurl that is 53 # found is after version 7.7.2, the first version that included the 54 # curl-config script. Note that it is very important for people 55 # packaging binary versions of libcurl to include this script! 56 # Without curl-config, we can only guess what protocols are available, 57 # or use curl_version_info to figure it out at runtime. 58 59 AC_DEFUN([LIBCURL_CHECK_CONFIG], 60 [ 61 AH_TEMPLATE([LIBCURL_FEATURE_SSL],[Defined if libcurl supports SSL]) 62 AH_TEMPLATE([LIBCURL_FEATURE_KRB4],[Defined if libcurl supports KRB4]) 63 AH_TEMPLATE([LIBCURL_FEATURE_IPV6],[Defined if libcurl supports IPv6]) 64 AH_TEMPLATE([LIBCURL_FEATURE_LIBZ],[Defined if libcurl supports libz]) 65 AH_TEMPLATE([LIBCURL_FEATURE_ASYNCHDNS],[Defined if libcurl supports AsynchDNS]) 66 AH_TEMPLATE([LIBCURL_FEATURE_IDN],[Defined if libcurl supports IDN]) 67 AH_TEMPLATE([LIBCURL_FEATURE_SSPI],[Defined if libcurl supports SSPI]) 68 AH_TEMPLATE([LIBCURL_FEATURE_NTLM],[Defined if libcurl supports NTLM]) 69 70 AH_TEMPLATE([LIBCURL_PROTOCOL_HTTP],[Defined if libcurl supports HTTP]) 71 AH_TEMPLATE([LIBCURL_PROTOCOL_HTTPS],[Defined if libcurl supports HTTPS]) 72 AH_TEMPLATE([LIBCURL_PROTOCOL_FTP],[Defined if libcurl supports FTP]) 73 AH_TEMPLATE([LIBCURL_PROTOCOL_FTPS],[Defined if libcurl supports FTPS]) 74 AH_TEMPLATE([LIBCURL_PROTOCOL_FILE],[Defined if libcurl supports FILE]) 75 AH_TEMPLATE([LIBCURL_PROTOCOL_TELNET],[Defined if libcurl supports TELNET]) 76 AH_TEMPLATE([LIBCURL_PROTOCOL_LDAP],[Defined if libcurl supports LDAP]) 77 AH_TEMPLATE([LIBCURL_PROTOCOL_DICT],[Defined if libcurl supports DICT]) 78 AH_TEMPLATE([LIBCURL_PROTOCOL_TFTP],[Defined if libcurl supports TFTP]) 79 AH_TEMPLATE([LIBCURL_PROTOCOL_RTSP],[Defined if libcurl supports RTSP]) 80 AH_TEMPLATE([LIBCURL_PROTOCOL_POP3],[Defined if libcurl supports POP3]) 81 AH_TEMPLATE([LIBCURL_PROTOCOL_IMAP],[Defined if libcurl supports IMAP]) 82 AH_TEMPLATE([LIBCURL_PROTOCOL_SMTP],[Defined if libcurl supports SMTP]) 83 84 AC_ARG_WITH(libcurl, 85 AS_HELP_STRING([--with-libcurl=PREFIX],[look for the curl library in PREFIX/lib and headers in PREFIX/include]), 86 [_libcurl_with=$withval],[_libcurl_with=ifelse([$1],,[yes],[$1])]) 87 88 if test "$_libcurl_with" != "no" ; then 89 90 AC_PROG_AWK 91 92 _libcurl_version_parse="eval $AWK '{split(\$NF,A,\".\"); X=256*256*A[[1]]+256*A[[2]]+A[[3]]; print X;}'" 93 94 _libcurl_try_link=yes 95 96 if test -d "$_libcurl_with" ; then 97 LIBCURL_CPPFLAGS="-I$withval/include" 98 _libcurl_ldflags="-L$withval/lib" 99 AC_PATH_PROG([_libcurl_config],[curl-config],[], 100 ["$withval/bin"]) 101 else 102 AC_PATH_PROG([_libcurl_config],[curl-config],[],[$PATH]) 103 fi 104 105 if test x$_libcurl_config != "x" ; then 106 AC_CACHE_CHECK([for the version of libcurl], 107 [libcurl_cv_lib_curl_version], 108 [libcurl_cv_lib_curl_version=`$_libcurl_config --version | $AWK '{print $[]2}'`]) 109 110 _libcurl_version=`echo $libcurl_cv_lib_curl_version | $_libcurl_version_parse` 111 _libcurl_wanted=`echo ifelse([$2],,[0],[$2]) | $_libcurl_version_parse` 112 113 if test $_libcurl_wanted -gt 0 ; then 114 AC_CACHE_CHECK([for libcurl >= version $2], 115 [libcurl_cv_lib_version_ok], 116 [ 117 if test $_libcurl_version -ge $_libcurl_wanted ; then 118 libcurl_cv_lib_version_ok=yes 119 else 120 libcurl_cv_lib_version_ok=no 121 fi 122 ]) 123 fi 124 125 if test $_libcurl_wanted -eq 0 || test x$libcurl_cv_lib_version_ok = xyes ; then 126 if test x"$LIBCURL_CPPFLAGS" = "x" ; then 127 LIBCURL_CPPFLAGS=`$_libcurl_config --cflags` 128 fi 129 if test x"$LIBCURL" = "x" ; then 130 LIBCURL=`$_libcurl_config --libs` 131 132 # This is so silly, but Apple actually has a bug in their 133 # curl-config script. Fixed in Tiger, but there are still 134 # lots of Panther installs around. 135 case "${host}" in 136 powerpc-apple-darwin7*) 137 LIBCURL=`echo $LIBCURL | sed -e 's|-arch i386||g'` 138 ;; 139 esac 140 fi 141 142 # All curl-config scripts support --feature 143 _libcurl_features=`$_libcurl_config --feature` 144 145 # Is it modern enough to have --protocols? (7.12.4) 146 if test $_libcurl_version -ge 461828 ; then 147 _libcurl_protocols=`$_libcurl_config --protocols` 148 fi 149 else 150 _libcurl_try_link=no 151 fi 152 153 unset _libcurl_wanted 154 fi 155 156 if test $_libcurl_try_link = yes ; then 157 158 # we didn't find curl-config, so let's see if the user-supplied 159 # link line (or failing that, "-lcurl") is enough. 160 LIBCURL=${LIBCURL-"$_libcurl_ldflags -lcurl"} 161 162 AC_CACHE_CHECK([whether libcurl is usable], 163 [libcurl_cv_lib_curl_usable], 164 [ 165 _libcurl_save_cppflags=$CPPFLAGS 166 CPPFLAGS="$LIBCURL_CPPFLAGS $CPPFLAGS" 167 _libcurl_save_libs=$LIBS 168 LIBS="$LIBCURL $LIBS" 169 170 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <curl/curl.h>]],[[ 171 /* Try and use a few common options to force a failure if we are 172 missing symbols or can't link. */ 173 int x; 174 curl_easy_setopt(NULL,CURLOPT_URL,NULL); 175 x=CURL_ERROR_SIZE; 176 x=CURLOPT_WRITEFUNCTION; 177 x=CURLOPT_WRITEDATA; 178 x=CURLOPT_ERRORBUFFER; 179 x=CURLOPT_STDERR; 180 x=CURLOPT_VERBOSE; 181 if (x) {;} 182 ]])],libcurl_cv_lib_curl_usable=yes,libcurl_cv_lib_curl_usable=no) 183 184 CPPFLAGS=$_libcurl_save_cppflags 185 LIBS=$_libcurl_save_libs 186 unset _libcurl_save_cppflags 187 unset _libcurl_save_libs 188 ]) 189 190 if test $libcurl_cv_lib_curl_usable = yes ; then 191 192 # Does curl_free() exist in this version of libcurl? 193 # If not, fake it with free() 194 195 _libcurl_save_cppflags=$CPPFLAGS 196 CPPFLAGS="$CPPFLAGS $LIBCURL_CPPFLAGS" 197 _libcurl_save_libs=$LIBS 198 LIBS="$LIBS $LIBCURL" 199 200 AC_CHECK_FUNC(curl_free,, 201 AC_DEFINE(curl_free,free, 202 [Define curl_free() as free() if our version of curl lacks curl_free.])) 203 204 CPPFLAGS=$_libcurl_save_cppflags 205 LIBS=$_libcurl_save_libs 206 unset _libcurl_save_cppflags 207 unset _libcurl_save_libs 208 209 AC_DEFINE(HAVE_LIBCURL,1, 210 [Define to 1 if you have a functional curl library.]) 211 AC_SUBST(LIBCURL_CPPFLAGS) 212 AC_SUBST(LIBCURL) 213 214 for _libcurl_feature in $_libcurl_features ; do 215 AC_DEFINE_UNQUOTED(AS_TR_CPP(libcurl_feature_$_libcurl_feature),[1]) 216 eval AS_TR_SH(libcurl_feature_$_libcurl_feature)=yes 217 done 218 219 if test "x$_libcurl_protocols" = "x" ; then 220 221 # We don't have --protocols, so just assume that all 222 # protocols are available 223 _libcurl_protocols="HTTP FTP FILE TELNET LDAP DICT TFTP" 224 225 if test x$libcurl_feature_SSL = xyes ; then 226 _libcurl_protocols="$_libcurl_protocols HTTPS" 227 228 # FTPS wasn't standards-compliant until version 229 # 7.11.0 (0x070b00 == 461568) 230 if test $_libcurl_version -ge 461568; then 231 _libcurl_protocols="$_libcurl_protocols FTPS" 232 fi 233 fi 234 235 # RTSP, IMAP, POP3 and SMTP were added in 236 # 7.20.0 (0x071400 == 463872) 237 if test $_libcurl_version -ge 463872; then 238 _libcurl_protocols="$_libcurl_protocols RTSP IMAP POP3 SMTP" 239 fi 240 fi 241 242 for _libcurl_protocol in $_libcurl_protocols ; do 243 AC_DEFINE_UNQUOTED(AS_TR_CPP(libcurl_protocol_$_libcurl_protocol),[1]) 244 eval AS_TR_SH(libcurl_protocol_$_libcurl_protocol)=yes 245 done 246 else 247 unset LIBCURL 248 unset LIBCURL_CPPFLAGS 249 fi 250 fi 251 252 unset _libcurl_try_link 253 unset _libcurl_version_parse 254 unset _libcurl_config 255 unset _libcurl_feature 256 unset _libcurl_features 257 unset _libcurl_protocol 258 unset _libcurl_protocols 259 unset _libcurl_version 260 unset _libcurl_ldflags 261 fi 262 263 if test x$_libcurl_with = xno || test x$libcurl_cv_lib_curl_usable != xyes ; then 264 # This is the IF-NO path 265 ifelse([$4],,:,[$4]) 266 else 267 # This is the IF-YES path 268 ifelse([$3],,:,[$3]) 269 fi 270 271 unset _libcurl_with 272 ])dnl 273
