Fix Autotools not enabling OpenLDAP-specific functionality

Origin: upstream, https://github.com/curl/curl/commit/0ac6108856b9d500bc376d1d7e0b648d15499837.patch
Bug: https://github.com/curl/curl/issues/11372
Applied-Upstream: 8.2.0, https://github.com/curl/curl/commit/0ac6108856b9d500bc376d1d7e0b648d15499837
Reviewed-By: John Scott <jscott@posteo.net>
Last-Update: 2023-07-25

The non-OpenLDAP code paths are less tested, less featureful, less secure,
and omitted in the build system by accident. It has been discovered that this
also mitigates curl not being able to make LDIF output when attributes have
binary values.

Gbp-Pq: Name Use-OpenLDAP-specific-functionality.patch

diff --git a/configure.ac b/configure.ac
index a998d473f82f4ad4591bbc0a1e97a1961cd84a59..7a72b4ccc6e80c307234fec5070951ac95fe8c9c 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -1663,16 +1663,19 @@ if test x$CURL_DISABLE_LDAP != x1 ; then
 fi
 
 if test x$CURL_DISABLE_LDAP != x1 ; then
-  AC_CHECK_FUNCS([ldap_url_parse])
+  AC_CHECK_FUNCS([ldap_url_parse \
+                  ldap_init_fd])
 
   if test "$LDAPLIBNAME" = "wldap32"; then
     curl_ldap_msg="enabled (winldap)"
     AC_DEFINE(USE_WIN32_LDAP, 1, [Use Windows LDAP implementation])
   else
-    curl_ldap_msg="enabled (OpenLDAP)"
     if test "x$ac_cv_func_ldap_init_fd" = "xyes"; then
+      curl_ldap_msg="enabled (OpenLDAP)"
       AC_DEFINE(USE_OPENLDAP, 1, [Use OpenLDAP-specific code])
       AC_SUBST(USE_OPENLDAP, [1])
+    else
+      curl_ldap_msg="enabled (ancient OpenLDAP)"
     fi
   fi
 fi