# LIBGNURL_CHECK_CONFIG ([DEFAULT-ACTION], [MINIMUM-VERSION], # [ACTION-IF-YES], [ACTION-IF-NO]) # ---------------------------------------------------------- # David Shaw May-09-2006 # # Checks for libgnurl. DEFAULT-ACTION is the string yes or no to # specify whether to default to --with-libgnurl or --without-libgnurl. # If not supplied, DEFAULT-ACTION is yes. MINIMUM-VERSION is the # minimum version of libgnurl 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 # libgnurl 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-libgnurl does run ACTION-IF-NO. # # This macro #defines HAVE_LIBGNURL if a working libgnurl setup is # found, and sets @LIBGNURL@ and @LIBGNURL_CPPFLAGS@ to the necessary # values. Other useful defines are LIBGNURL_FEATURE_xxx where xxx are # the various features supported by libgnurl, and LIBGNURL_PROTOCOL_yyy # where yyy are the various protocols supported by libgnurl. 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 $libgnurl_feature_xxx and $libgnurl_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 # gnurl-config list (e.g. it's "HTTP" and not "http"). # # Users may override the detected values by doing something like: # LIBGNURL="-lgnurl" LIBGNURL_CPPFLAGS="-I/usr/myinclude" ./configure # # For the sake of sanity, this macro assumes that any libgnurl that is # found is after version 7.7.2, the first version that included the # gnurl-config script. Note that it is very important for people # packaging binary versions of libgnurl to include this script! # Without gnurl-config, we can only guess what protocols are available, # or use gnurl_version_info to figure it out at runtime. AC_DEFUN([LIBGNURL_CHECK_CONFIG], [ AH_TEMPLATE([LIBGNURL_FEATURE_SSL],[Defined if libgnurl supports SSL]) AH_TEMPLATE([LIBGNURL_FEATURE_KRB4],[Defined if libgnurl supports KRB4]) AH_TEMPLATE([LIBGNURL_FEATURE_IPV6],[Defined if libgnurl supports IPv6]) AH_TEMPLATE([LIBGNURL_FEATURE_LIBZ],[Defined if libgnurl supports libz]) AH_TEMPLATE([LIBGNURL_FEATURE_ASYNCHDNS],[Defined if libgnurl supports AsynchDNS]) AH_TEMPLATE([LIBGNURL_FEATURE_IDN],[Defined if libgnurl supports IDN]) AH_TEMPLATE([LIBGNURL_FEATURE_SSPI],[Defined if libgnurl supports SSPI]) AH_TEMPLATE([LIBGNURL_FEATURE_NTLM],[Defined if libgnurl supports NTLM]) AH_TEMPLATE([LIBGNURL_PROTOCOL_HTTP],[Defined if libgnurl supports HTTP]) AH_TEMPLATE([LIBGNURL_PROTOCOL_HTTPS],[Defined if libgnurl supports HTTPS]) AH_TEMPLATE([LIBGNURL_PROTOCOL_FTP],[Defined if libgnurl supports FTP]) AH_TEMPLATE([LIBGNURL_PROTOCOL_FTPS],[Defined if libgnurl supports FTPS]) AH_TEMPLATE([LIBGNURL_PROTOCOL_FILE],[Defined if libgnurl supports FILE]) AH_TEMPLATE([LIBGNURL_PROTOCOL_TELNET],[Defined if libgnurl supports TELNET]) AH_TEMPLATE([LIBGNURL_PROTOCOL_LDAP],[Defined if libgnurl supports LDAP]) AH_TEMPLATE([LIBGNURL_PROTOCOL_DICT],[Defined if libgnurl supports DICT]) AH_TEMPLATE([LIBGNURL_PROTOCOL_TFTP],[Defined if libgnurl supports TFTP]) AH_TEMPLATE([LIBGNURL_PROTOCOL_RTSP],[Defined if libgnurl supports RTSP]) AH_TEMPLATE([LIBGNURL_PROTOCOL_POP3],[Defined if libgnurl supports POP3]) AH_TEMPLATE([LIBGNURL_PROTOCOL_IMAP],[Defined if libgnurl supports IMAP]) AH_TEMPLATE([LIBGNURL_PROTOCOL_SMTP],[Defined if libgnurl supports SMTP]) AC_ARG_WITH(libgnurl, AC_HELP_STRING([--with-libgnurl=PREFIX],[look for the gnurl library in PREFIX/lib and headers in PREFIX/include]), [_libgnurl_with=$withval],[_libgnurl_with=ifelse([$1],,[yes],[$1])]) if test "$_libgnurl_with" != "no" ; then AC_PROG_AWK _libgnurl_version_parse="eval $AWK '{split(\$NF,A,\".\"); X=256*256*A[[1]]+256*A[[2]]+A[[3]]; print X;}'" _libgnurl_try_link=yes if test -d "$_libgnurl_with" ; then LIBGNURL_CPPFLAGS="-I$withval/include" _libgnurl_ldflags="-L$withval/lib" AC_PATH_PROG([_libgnurl_config],[gnurl-config],[], ["$withval/bin"]) else AC_PATH_PROG([_libgnurl_config],[gnurl-config],[],[$PATH]) fi if test x$_libgnurl_config != "x" ; then AC_CACHE_CHECK([for the version of libgnurl], [libgnurl_cv_lib_gnurl_version], [libgnurl_cv_lib_gnurl_version=`$_libgnurl_config --version | $AWK '{print $[]2}'`]) _libgnurl_version=`echo $libgnurl_cv_lib_gnurl_version | $_libgnurl_version_parse` _libgnurl_wanted=`echo ifelse([$2],,[0],[$2]) | $_libgnurl_version_parse` if test $_libgnurl_wanted -gt 0 ; then AC_CACHE_CHECK([for libgnurl >= version $2], [libgnurl_cv_lib_version_ok], [ if test $_libgnurl_version -ge $_libgnurl_wanted ; then libgnurl_cv_lib_version_ok=yes else libgnurl_cv_lib_version_ok=no fi ]) fi if test $_libgnurl_wanted -eq 0 || test x$libgnurl_cv_lib_version_ok = xyes ; then if test x"$LIBGNURL_CPPFLAGS" = "x" ; then LIBGNURL_CPPFLAGS=`$_libgnurl_config --cflags` fi if test x"$LIBGNURL" = "x" ; then LIBGNURL=`$_libgnurl_config --libs` # This is so silly, but Apple actually has a bug in their # gnurl-config script. Fixed in Tiger, but there are still # lots of Panther installs around. case "${host}" in powerpc-apple-darwin7*) LIBGNURL=`echo $LIBGNURL | sed -e 's|-arch i386||g'` ;; esac fi # All gnurl-config scripts support --feature _libgnurl_features=`$_libgnurl_config --feature` # Is it modern enough to have --protocols? (7.12.4) if test $_libgnurl_version -ge 461828 ; then _libgnurl_protocols=`$_libgnurl_config --protocols` fi else _libgnurl_try_link=no fi unset _libgnurl_wanted fi if test $_libgnurl_try_link = yes ; then # we didn't find gnurl-config, so let's see if the user-supplied # link line (or failing that, "-lgnurl") is enough. LIBGNURL=${LIBGNURL-"$_libgnurl_ldflags -lgnurl"} AC_CACHE_CHECK([whether libgnurl is usable], [libgnurl_cv_lib_gnurl_usable], [ _libgnurl_save_cppflags=$CPPFLAGS CPPFLAGS="$LIBGNURL_CPPFLAGS $CPPFLAGS" _libgnurl_save_libs=$LIBS LIBS="$LIBGNURL $LIBS" AC_LINK_IFELSE([AC_LANG_PROGRAM([#include ],[ /* Try and use a few common options to force a failure if we are missing symbols or can't link. */ int x; curl_easy_setopt(NULL,CURLOPT_URL,NULL); x=CURL_ERROR_SIZE; x=CURLOPT_WRITEFUNCTION; x=CURLOPT_FILE; x=CURLOPT_ERRORBUFFER; x=CURLOPT_STDERR; x=CURLOPT_VERBOSE; ])],libgnurl_cv_lib_gnurl_usable=yes,libgnurl_cv_lib_gnurl_usable=no) # BEGIN Changes from original libcurl.m4: # Give it a 2nd shot using 'gnurl/curl.h' AC_LINK_IFELSE([AC_LANG_PROGRAM([#include ],[ /* Try and use a few common options to force a failure if we are missing symbols or can't link. */ int x; curl_easy_setopt(NULL,CURLOPT_URL,NULL); x=CURL_ERROR_SIZE; x=CURLOPT_WRITEFUNCTION; x=CURLOPT_FILE; x=CURLOPT_ERRORBUFFER; x=CURLOPT_STDERR; x=CURLOPT_VERBOSE; ])],libgnurl_cv_lib_gnurl_usable=yes) # END Changes from original libcurl.m4: CPPFLAGS=$_libgnurl_save_cppflags LIBS=$_libgnurl_save_libs unset _libgnurl_save_cppflags unset _libgnurl_save_libs ]) if test $libgnurl_cv_lib_gnurl_usable = yes ; then # Does gnurl_free() exist in this version of libgnurl? # If not, fake it with free() _libgnurl_save_cppflags=$CPPFLAGS CPPFLAGS="$CPPFLAGS $LIBGNURL_CPPFLAGS" _libgnurl_save_libs=$LIBS LIBS="$LIBS $LIBGNURL" AC_CHECK_FUNC(curl_free,, AC_DEFINE(curl_free,free, [Define curl_free() as free() if our version of gnurl lacks curl_free.])) CPPFLAGS=$_libgnurl_save_cppflags LIBS=$_libgnurl_save_libs unset _libgnurl_save_cppflags unset _libgnurl_save_libs AC_DEFINE(HAVE_LIBGNURL,1, [Define to 1 if you have a functional gnurl library.]) AC_SUBST(LIBGNURL_CPPFLAGS) AC_SUBST(LIBGNURL) for _libgnurl_feature in $_libgnurl_features ; do AC_DEFINE_UNQUOTED(AS_TR_CPP(libgnurl_feature_$_libgnurl_feature),[1]) eval AS_TR_SH(libgnurl_feature_$_libgnurl_feature)=yes done if test "x$_libgnurl_protocols" = "x" ; then # We don't have --protocols, so just assume that all # protocols are available _libgnurl_protocols="HTTP FTP FILE TELNET LDAP DICT TFTP" if test x$libgnurl_feature_SSL = xyes ; then _libgnurl_protocols="$_libgnurl_protocols HTTPS" # FTPS wasn't standards-compliant until version # 7.11.0 (0x070b00 == 461568) if test $_libgnurl_version -ge 461568; then _libgnurl_protocols="$_libgnurl_protocols FTPS" fi fi # RTSP, IMAP, POP3 and SMTP were added in # 7.20.0 (0x071400 == 463872) if test $_libgnurl_version -ge 463872; then _libgnurl_protocols="$_libgnurl_protocols RTSP IMAP POP3 SMTP" fi fi for _libgnurl_protocol in $_libgnurl_protocols ; do AC_DEFINE_UNQUOTED(AS_TR_CPP(libgnurl_protocol_$_libgnurl_protocol),[1]) eval AS_TR_SH(libgnurl_protocol_$_libgnurl_protocol)=yes done else unset LIBGNURL unset LIBGNURL_CPPFLAGS fi fi unset _libgnurl_try_link unset _libgnurl_version_parse unset _libgnurl_config unset _libgnurl_feature unset _libgnurl_features unset _libgnurl_protocol unset _libgnurl_protocols unset _libgnurl_version unset _libgnurl_ldflags fi if test x$_libgnurl_with = xno || test x$libgnurl_cv_lib_gnurl_usable != xyes ; then # This is the IF-NO path ifelse([$4],,:,[$4]) else # This is the IF-YES path ifelse([$3],,:,[$3]) fi unset _libgnurl_with ])dnl