update libcurl.m4 to fix breakage with -Wl,--as-needed ld flags

Thanks to Samuli Suominen of Gentoo project for spotting it

Signed-off-by: Michael Krelin <hacker@klever.net>

1 files changed, 55 insertions, 24 deletions

diff --git a/acinclude.d/libcurl.m4 b/acinclude.d/libcurl.m4
index e80c206..f54a5f2 100644
--- a/acinclude.d/libcurl.m4
+++ b/acinclude.d/libcurl.m4
@@ -2,5 +2,5 @@
 #                       [ACTION-IF-YES], [ACTION-IF-NO])
 # ----------------------------------------------------------
-#      David Shaw <dshaw@jabberwocky.com>   Jan-23-2005
+#      David Shaw <dshaw@jabberwocky.com>   May-09-2006
 #
 # Checks for libcurl.  DEFAULT-ACTION is the string yes or no to
@@ -14,8 +14,8 @@
 # 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@ and @LIBCURL_CPPFLAGS@ to the necessary values.
-# Other useful defines are LIBCURL_FEATURE_xxx where xxx are the
-# various features supported by libcurl, and LIBCURL_PROTOCOL_yyy
+# This macro #defines HAVE_LIBCURL if a working libcurl setup is
+# found, and sets @LIBCURL@ and @LIBCURL_CPPFLAGS@ 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
@@ -33,11 +33,6 @@
 # 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 make educated guesses as to what
-# protocols are available.  Specifically, we assume that all of HTTP,
-# FTP, GOPHER, FILE, TELNET, LDAP, and DICT exist, and (if SSL exists)
-# HTTPS is present.  All of these protocols existed when libcurl was
-# first created in version 7, so this is a safe assumption.  If the
-# version is 7.11.0 or later, FTPS is assumed to be present as well.
-# FTPS existed before then, but was not yet fully standards compliant.
+# 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],
@@ -48,4 +43,7 @@ AC_DEFUN([LIBCURL_CHECK_CONFIG],
   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])
@@ -53,9 +51,9 @@ AC_DEFUN([LIBCURL_CHECK_CONFIG],
   AH_TEMPLATE([LIBCURL_PROTOCOL_FTP],[Defined if libcurl supports FTP])
   AH_TEMPLATE([LIBCURL_PROTOCOL_FTPS],[Defined if libcurl supports FTPS])
-  AH_TEMPLATE([LIBCURL_PROTOCOL_GOPHER],[Defined if libcurl supports GOPHER])
   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])
 
   AC_ARG_WITH(libcurl,
@@ -72,9 +70,11 @@ AC_DEFUN([LIBCURL_CHECK_CONFIG],
 
      if test -d "$_libcurl_with" ; then
-        CPPFLAGS="${CPPFLAGS} -I$withval/include"
-        LDFLAGS="${LDFLAGS} -L$withval/lib"
-     fi
-
+        LIBCURL_CPPFLAGS="-I$withval/include"
+        _libcurl_ldflags="-L$withval/lib"
+        AC_PATH_PROG([_libcurl_config],[curl-config],["$withval/bin"],
+                     ["$withval/bin"])
+     else
      AC_PATH_PROG([_libcurl_config],[curl-config])
+     fi
 
      if test x$_libcurl_config != "x" ; then
@@ -104,4 +104,13 @@ AC_DEFUN([LIBCURL_CHECK_CONFIG],
            if test x"$LIBCURL" = "x" ; then
               LIBCURL=`$_libcurl_config --libs`
+
+              # This is so silly, but Apple actually has a bug in their
+	      # curl-config script.  Fixed in Tiger, but there are still
+	      # lots of Panther installs around.
+              case "${host}" in
+                 powerpc-apple-darwin7*)
+                    LIBCURL=`echo $LIBCURL | sed -e 's|-arch i386||g'`
+                 ;;
+              esac
            fi
 
@@ -124,5 +133,5 @@ AC_DEFUN([LIBCURL_CHECK_CONFIG],
         # we didn't find curl-config, so let's see if the user-supplied
         # link line (or failing that, "-lcurl") is enough.
-        LIBCURL=${LIBCURL-"-lcurl"}
+        LIBCURL=${LIBCURL-"$_libcurl_ldflags -lcurl"}
 
         AC_CACHE_CHECK([whether libcurl is usable],
@@ -130,7 +139,7 @@ AC_DEFUN([LIBCURL_CHECK_CONFIG],
            [
            _libcurl_save_cppflags=$CPPFLAGS
-           CPPFLAGS="$CPPFLAGS $LIBCURL_CPPFLAGS"
-           _libcurl_save_ldflags=$LDFLAGS
-           LDFLAGS="$LDFLAGS $LIBCURL"
+           CPPFLAGS="$LIBCURL_CPPFLAGS $CPPFLAGS"
+           _libcurl_save_libs=$LIBS
+           LIBS="$LIBCURL $LIBS"
 
            AC_LINK_IFELSE(AC_LANG_PROGRAM([#include <curl/curl.h>],[
@@ -148,10 +157,28 @@ x=CURLOPT_VERBOSE;
 
            CPPFLAGS=$_libcurl_save_cppflags
-           LDFLAGS=$_libcurl_save_ldflags
+           LIBS=$_libcurl_save_libs
            unset _libcurl_save_cppflags
-           unset _libcurl_save_ldflags
+           unset _libcurl_save_libs
            ])
 
         if test $libcurl_cv_lib_curl_usable = yes ; then
+
+	   # Does curl_free() exist in this version of libcurl?
+	   # If not, fake it with free()
+
+           _libcurl_save_cppflags=$CPPFLAGS
+           CPPFLAGS="$CPPFLAGS $LIBCURL_CPPFLAGS"
+           _libcurl_save_libs=$LIBS
+           LIBS="$LIBS $LIBCURL"
+
+           AC_CHECK_FUNC(curl_free,,
+  	      AC_DEFINE(curl_free,free,
+		[Define curl_free() as free() if our version of curl lacks curl_free.]))
+
+           CPPFLAGS=$_libcurl_save_cppflags
+           LIBS=$_libcurl_save_libs
+           unset _libcurl_save_cppflags
+           unset _libcurl_save_libs
+
            AC_DEFINE(HAVE_LIBCURL,1,
              [Define to 1 if you have a functional curl library.])
@@ -168,5 +195,5 @@ x=CURLOPT_VERBOSE;
 	      # We don't have --protocols, so just assume that all
 	      # protocols are available
-	      _libcurl_protocols="HTTP FTP GOPHER FILE TELNET LDAP DICT"
+	      _libcurl_protocols="HTTP FTP FILE TELNET LDAP DICT"
 
 	      if test x$libcurl_feature_SSL = xyes ; then
@@ -185,4 +212,7 @@ x=CURLOPT_VERBOSE;
 	      eval AS_TR_SH(libcurl_protocol_$_libcurl_protocol)=yes
            done
+	else
+	   unset LIBCURL
+	   unset LIBCURL_CPPFLAGS
         fi
      fi
@@ -196,4 +226,5 @@ x=CURLOPT_VERBOSE;
      unset _libcurl_protocols
      unset _libcurl_version
+     unset _libcurl_ldflags
   fi