# LIBCURL_CHECK_CONFIG ([DEFAULT-ACTION], [MINIMUM-VERSION], # [ACTION-IF-YES], [ACTION-IF-NO]) # ---------------------------------------------------------- # David Shaw May-09-2006 # # Checks for libcurl. DEFAULT-ACTION is the string yes or no to # specify whether to default to --with-libcurl or --without-libcurl. # If not supplied, DEFAULT-ACTION is yes. MINIMUM-VERSION is the # minimum version of libcurl to accept. Pass the version as a regular # version number like 7.10.1. If not supplied, any version is # accepted. ACTION-IF-YES is a list of shell commands to run if # libcurl was successfully found and passed the various tests. # ACTION-IF-NO is a list of shell commands that are run otherwise. # Note that using --without-libcurl does run ACTION-IF-NO. # # This macro #defines HAVE_LIBCURL if a working libcurl setup is # found, and sets @LIBCURL_LIBS@ and @LIBCURL_CFLAGS@ to the necessary # values. Other useful defines are LIBCURL_FEATURE_xxx where xxx are # the various features supported by libcurl, and LIBCURL_PROTOCOL_yyy # where yyy are the various protocols supported by libcurl. Both xxx # and yyy are capitalized. See the list of AH_TEMPLATEs at the top of # the macro for the complete list of possible defines. Shell # variables $libcurl_feature_xxx and $libcurl_protocol_yyy are also # defined to 'yes' for those features and protocols that were found. # Note that xxx and yyy keep the same capitalization as in the # curl-config list (e.g. it's "HTTP" and not "http"). # # Users may override the detected values by doing something like: # LIBCURL_LIBS="-lcurl" LIBCURL_CFLAGS="-I/usr/myinclude" ./configure # # For the sake of sanity, this macro assumes that any libcurl that is # found is after version 7.7.2, the first version that included the # curl-config script. Note that it is very important for people # packaging binary versions of libcurl to include this script! # Without curl-config, we can only guess what protocols are available, # or use curl_version_info to figure it out at runtime. AC_DEFUN([LIBCURL_CHECK_CONFIG], [ AH_TEMPLATE([LIBCURL_FEATURE_SSL],[Defined if libcurl supports SSL]) AH_TEMPLATE([LIBCURL_FEATURE_KRB4],[Defined if libcurl supports KRB4]) AH_TEMPLATE([LIBCURL_FEATURE_IPV6],[Defined if libcurl supports IPv6]) AH_TEMPLATE([LIBCURL_FEATURE_LIBZ],[Defined if libcurl supports libz]) AH_TEMPLATE([LIBCURL_FEATURE_ASYNCHDNS],[Defined if libcurl supports AsynchDNS]) AH_TEMPLATE([LIBCURL_FEATURE_IDN],[Defined if libcurl supports IDN]) AH_TEMPLATE([LIBCURL_FEATURE_SSPI],[Defined if libcurl supports SSPI]) AH_TEMPLATE([LIBCURL_FEATURE_NTLM],[Defined if libcurl supports NTLM]) AH_TEMPLATE([LIBCURL_PROTOCOL_HTTP],[Defined if libcurl supports HTTP]) AH_TEMPLATE([LIBCURL_PROTOCOL_HTTPS],[Defined if libcurl supports HTTPS]) AH_TEMPLATE([LIBCURL_PROTOCOL_FTP],[Defined if libcurl supports FTP]) AH_TEMPLATE([LIBCURL_PROTOCOL_FTPS],[Defined if libcurl supports FTPS]) AH_TEMPLATE([LIBCURL_PROTOCOL_FILE],[Defined if libcurl supports FILE]) AH_TEMPLATE([LIBCURL_PROTOCOL_TELNET],[Defined if libcurl supports TELNET]) AH_TEMPLATE([LIBCURL_PROTOCOL_LDAP],[Defined if libcurl supports LDAP]) AH_TEMPLATE([LIBCURL_PROTOCOL_DICT],[Defined if libcurl supports DICT]) AH_TEMPLATE([LIBCURL_PROTOCOL_TFTP],[Defined if libcurl supports TFTP]) _libcurl_config="no" AC_ARG_WITH(libcurl, [If you want to use cURL library: AC_HELP_STRING([--with-libcurl@<:@=DIR@:>@],[use cURL package @<:@default=yes@:>@, optionally specify path to curl-config])], [ if test "$withval" = "no"; then want_curl="no" elif test "$withval" = "yes"; then want_curl="yes" else want_curl="yes" _libcurl_config=$withval fi ], [want_curl=ifelse([$1],,[try],[$1])]) if test "$want_curl" != "no" ; then AC_PROG_AWK _libcurl_version_parse="eval $AWK '{split(\$NF,A,\".\"); X=256*256*A[[1]]+256*A[[2]]+A[[3]]; print X;}'" _libcurl_try_link=no if test -z "$_libcurl_config" -o test; then AC_PATH_PROG([_libcurl_config], [curl-config], [no]) fi if test -f $_libcurl_config; then AC_CACHE_CHECK([for the version of libcurl], [libcurl_cv_lib_curl_version], [libcurl_cv_lib_curl_version=`$_libcurl_config --version | $AWK '{print $[]2}'`]) _libcurl_version=`echo $libcurl_cv_lib_curl_version | $_libcurl_version_parse` _libcurl_wanted=`echo ifelse([$2],,[0],[$2]) | $_libcurl_version_parse` if test $_libcurl_wanted -gt 0 ; then AC_CACHE_CHECK([for libcurl >= version $2], [libcurl_cv_lib_version_ok], [ if test $_libcurl_version -ge $_libcurl_wanted ; then libcurl_cv_lib_version_ok=yes else libcurl_cv_lib_version_ok=no fi ]) fi if test $_libcurl_wanted -eq 0 || test x$libcurl_cv_lib_version_ok = xyes ; then if test x"$LIBCURL_CFLAGS" = "x" ; then LIBCURL_CFLAGS=`$_libcurl_config --cflags` fi if test x"$LIBCURL_LIBS" = "x" ; then _full_libcurl_libs=`$_libcurl_config --libs` for i in $_full_libcurl_libs; do case $i in -l*) LIBCURL_LDFLAGS="$LIBCURL_LDFLAGS $i" ;; -L*) LIBCURL_LDFLAGS="$LIBCURL_LDFLAGS $i" ;; esac done if test "x$enable_static" = "xyes"; then for i in $_full_libcurl_libs; do case $i in -lcurl) ;; -l*) _lib_name=`echo "$i" | cut -b3-` AC_CHECK_LIB($_lib_name , main,[ LIBCURL_LIBS="$LIBCURL_LIBS $i" ],[ AC_MSG_ERROR([Not found $_lib_name library]) ]) ;; esac done fi _save_curl_libs="${LIBS}" _save_curl_ldflags="${LDFLAGS}" _save_curl_cflags="${CFLAGS}" LIBS="${LIBS} ${LIBCURL_LIBS}" LDFLAGS="${LDFLAGS} ${LIBCURL_LDFLAGS}" CFLAGS="${CFLAGS} ${LIBCURL_CFLAGS}" AC_CHECK_LIB(curl, main,[ LIBCURL_LIBS="-lcurl $LIBCURL_LIBS" ],[ AC_MSG_ERROR([Not found libcurl library]) ]) LIBS="${_save_curl_libs}" LDFLAGS="${_save_curl_ldflags}" CFLAGS="${_save_curl_cflags}" unset _save_curl_libs unset _save_curl_ldflags unset _save_curl_cflags # This is so silly, but Apple actually has a bug in their # curl-config script. Fixed in Tiger, but there are still # lots of Panther installs around. case "${host}" in powerpc-apple-darwin7*) LIBCURL_LIBS=`echo $LIBCURL_LIBS | sed -e 's|-arch i386||g'` ;; esac fi # All curl-config scripts support --feature _libcurl_features=`$_libcurl_config --feature` # Is it modern enough to have --protocols? (7.12.4) if test $_libcurl_version -ge 461828 ; then _libcurl_protocols=`$_libcurl_config --protocols` fi _libcurl_try_link=yes fi unset _libcurl_wanted fi if test $_libcurl_try_link = yes ; then # we didn't find curl-config, so let's see if the user-supplied # link line (or failing that, "-lcurl") is enough. LIBCURL_LIBS=${LIBCURL_LIBS-"$_libcurl_libs -lcurl"} AC_CACHE_CHECK([whether libcurl is usable], [libcurl_cv_lib_curl_usable], [ _save_curl_libs="${LIBS}" _save_curl_ldflags="${LDFLAGS}" _save_curl_cflags="${CFLAGS}" LIBS="${LIBS} ${LIBCURL_LIBS}" LDFLAGS="${LDFLAGS} ${LIBCURL_LDFLAGS}" CFLAGS="${CFLAGS} ${LIBCURL_CFLAGS}" AC_LINK_IFELSE(AC_LANG_PROGRAM([#include #ifndef NULL #define NULL (void *)0 #endif],[ /* Try and use a few common options to force a failure if we are missing symbols or can't link. */ int x; curl_easy_setopt(NULL,CURLOPT_URL,NULL); x=CURL_ERROR_SIZE; x=CURLOPT_WRITEFUNCTION; x=CURLOPT_FILE; x=CURLOPT_ERRORBUFFER; x=CURLOPT_STDERR; x=CURLOPT_VERBOSE; ]),libcurl_cv_lib_curl_usable=yes,libcurl_cv_lib_curl_usable=no) LIBS="${_save_curl_libs}" LDFLAGS="${_save_curl_ldflags}" CFLAGS="${_save_curl_cflags}" unset _save_curl_libs unset _save_curl_ldflags unset _save_curl_cflags ]) if test $libcurl_cv_lib_curl_usable = yes ; then # Does curl_free() exist in this version of libcurl? # If not, fake it with free() _save_curl_libs="${LIBS}" _save_curl_ldflags="${LDFLAGS}" _save_curl_cflags="${CFLAGS}" LIBS="${LIBS} ${LIBCURL_LIBS}" LDFLAGS="${LDFLAGS} ${LIBCURL_LDFLAGS}" CFLAGS="${CFLAGS} ${LIBCURL_CFLAGS}" AC_CHECK_FUNC(curl_free,, AC_DEFINE(curl_free,free, [Define curl_free() as free() if our version of curl lacks curl_free.])) LIBS="${_save_curl_libs}" LDFLAGS="${_save_curl_ldflags}" CFLAGS="${_save_curl_cflags}" unset _save_curl_libs unset _save_curl_ldflags unset _save_curl_cflags AC_DEFINE(HAVE_LIBCURL,1, [Define to 1 if you have a functional curl library.]) AC_SUBST(LIBCURL_CFLAGS) AC_SUBST(LIBCURL_LDFLAGS) AC_SUBST(LIBCURL_LIBS) found_curl="yes" for _libcurl_feature in $_libcurl_features ; do AC_DEFINE_UNQUOTED(AS_TR_CPP(libcurl_feature_$_libcurl_feature),[1]) eval AS_TR_SH(libcurl_feature_$_libcurl_feature)=yes done if test "x$_libcurl_protocols" = "x" ; then # We don't have --protocols, so just assume that all # protocols are available _libcurl_protocols="HTTP FTP FILE TELNET LDAP DICT" if test x$libcurl_feature_SSL = xyes ; then _libcurl_protocols="$_libcurl_protocols HTTPS" # FTPS wasn't standards-compliant until version # 7.11.0 if test $_libcurl_version -ge 461568; then _libcurl_protocols="$_libcurl_protocols FTPS" fi fi fi for _libcurl_protocol in $_libcurl_protocols ; do AC_DEFINE_UNQUOTED(AS_TR_CPP(libcurl_protocol_$_libcurl_protocol),[1]) eval AS_TR_SH(libcurl_protocol_$_libcurl_protocol)=yes done else unset LIBCURL_LIBS unset LIBCURL_CFLAGS fi fi unset _libcurl_try_link unset _libcurl_version_parse unset _libcurl_config unset _libcurl_feature unset _libcurl_features unset _libcurl_protocol unset _libcurl_protocols unset _libcurl_version unset _libcurl_libs fi if test x$want_curl = xno || test x$libcurl_cv_lib_curl_usable != xyes ; then # This is the IF-NO path ifelse([$4],,:,[$4]) else # This is the IF-YES path ifelse([$3],,:,[$3]) fi ])dnl