diff options
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/libgnurl.m4 | 250 |
1 files changed, 250 insertions, 0 deletions
diff --git a/m4/libgnurl.m4 b/m4/libgnurl.m4 new file mode 100644 index 00000000..69aa1660 --- /dev/null +++ b/m4/libgnurl.m4 @@ -0,0 +1,250 @@ +# LIBGNURL_CHECK_CONFIG ([DEFAULT-ACTION], [MINIMUM-VERSION], +# [ACTION-IF-YES], [ACTION-IF-NO]) +# ---------------------------------------------------------- +# David Shaw <dshaw@jabberwocky.com> 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 $LIBS" + + AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <curl/curl.h>],[ +/* Try and use a few common options to force a failure if we are + missing symbols or can't link. */ +int x; +curl_easy_setopt(NULL,CURLOPT_URL,NULL); +x=CURL_ERROR_SIZE; +x=CURLOPT_WRITEFUNCTION; +x=CURLOPT_FILE; +x=CURLOPT_ERRORBUFFER; +x=CURLOPT_STDERR; +x=CURLOPT_VERBOSE; +])],libgnurl_cv_lib_gnurl_usable=yes,libgnurl_cv_lib_gnurl_usable=no) + + CPPFLAGS=$_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 |