Fixed curl-config --ca which wasn't being exported by configure.

CHANGES

@@ -6,6 +6,8 @@
 
                                   Changelog
 
+Daniel Fandrich (12 Jun 2008)
+- Fixed curl-config --ca which wasn't being exported by configure.
 
 Daniel Stenberg (11 Jun 2008)
 - I did a cleanup of the internal generic SSL layer and how the various SSL

RELEASE-NOTES

@@ -18,7 +18,7 @@ This release includes the following changes:
 
 This release includes the following bugfixes:
 
- o 
+ o Fixed curl-config --ca
 
 This release includes the following known bugs:
 

acinclude.m4

@@ -3070,6 +3070,7 @@ AC_HELP_STRING([--without-ca-path], [Don't use a default CA path]),
   if test "x$ca" != "xno"; then
     CURL_CA_BUNDLE='"'$ca'"'
     AC_DEFINE_UNQUOTED(CURL_CA_BUNDLE, "$ca", [Location of default ca bundle])
+    AC_SUBST(CURL_CA_BUNDLE)
     AC_MSG_RESULT([$ca])
   elif test "x$capath" != "xno"; then
     CURL_CA_PATH="\"$capath\""