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