diff --recursive -u misc/build/postgresql-9.1.1/configure misc/build/postgresql-9.1.1.patched/configure
--- misc/build/postgresql-9.1.1/configure	2011-09-22 23:57:57.000000000 +0200
+++ misc/build/postgresql-9.1.1.patched/configure	2011-12-15 09:30:36.000000000 +0100
@@ -718,6 +718,7 @@
 with_selinux
 with_openssl
 with_bonjour
+with_mozldap
 with_ldap
 with_pam
 krb_srvtab
@@ -836,6 +837,7 @@
 with_krb_srvnam
 with_pam
 with_ldap
+with_mozldap
 with_bonjour
 with_openssl
 with_selinux
@@ -1533,6 +1535,7 @@
                           [postgres]
   --with-pam              build with PAM support
   --with-ldap             build with LDAP support
+  --with-mozldap          build with Mozilla LDAP support
   --with-bonjour          build with Bonjour support
   --with-openssl          build with OpenSSL support
   --with-selinux          build with SELinux support
@@ -5432,6 +5435,42 @@
 $as_echo "$with_ldap" >&6; }
 
 
+{ $as_echo "$as_me:$LINENO: checking whether to use Mozilla C SDK for LDAP support" >&5
+$as_echo_n "checking whether to use Mozilla C SDK for LDAP support... " >&6; }
+
+
+
+# Check whether --with-mozldap was given.
+if test "${with_mozldap+set}" = set; then
+  withval=$with_mozldap;
+  case $withval in
+    yes)
+
+cat >>confdefs.h <<\_ACEOF
+#define USE_MOZLDAP 1
+_ACEOF
+
+      ;;
+    no)
+      :
+      ;;
+    *)
+      { { $as_echo "$as_me:$LINENO: error: no argument expected for --with-mozldap option" >&5
+$as_echo "$as_me: error: no argument expected for --with-mozldap option" >&2;}
+   { (exit 1); exit 1; }; }
+      ;;
+  esac
+
+else
+  with_mozldap=no
+
+fi
+
+
+{ $as_echo "$as_me:$LINENO: result: $with_mozldap" >&5
+$as_echo "$with_mozldap" >&6; }
+
+
 
 #
 # Bonjour
@@ -13584,7 +13623,7 @@
 fi
 
 if test "$with_ldap" = yes ; then
-  if test "$PORTNAME" != "win32"; then
+  if test "$PORTNAME" != "win32" || test "$with_mozldap" = "yes"; then
 
 for ac_header in ldap.h
 do
@@ -13809,6 +13848,11 @@
 
 done
 
+
+cat >>confdefs.h <<\_ACEOF
+#define USE_MICROSOFT_LDAP 1
+_ACEOF
+
   fi
 fi
 
@@ -23348,7 +23392,99 @@
 # We can test for libldap_r only after we know PTHREAD_LIBS
 if test "$with_ldap" = yes ; then
   _LIBS="$LIBS"
-  if test "$PORTNAME" != "win32"; then
+  if test "$with_mozldap" = "yes"; then
+    if test "$PORTNAME" != "win32"; then
+      mozlibname=ldap50
+    else
+      mozlibname=nsldap32v50
+    fi
+
+as_ac_Lib=`$as_echo "ac_cv_lib_$mozlibname''_ldap_bind" | $as_tr_sh`
+{ $as_echo "$as_me:$LINENO: checking for ldap_bind in -l$mozlibname" >&5
+$as_echo_n "checking for ldap_bind in -l$mozlibname... " >&6; }
+if { as_var=$as_ac_Lib; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-l$mozlibname $PTHREAD_CFLAGS $PTHREAD_LIBS $EXTRA_LDAP_LIBS $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char ldap_bind ();
+int
+main ()
+{
+return ldap_bind ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval "$as_ac_Lib=yes"
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval "$as_ac_Lib=no"
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+ac_res=`eval 'as_val=${'$as_ac_Lib'}
+		 $as_echo "$as_val"'`
+	       { $as_echo "$as_me:$LINENO: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+as_val=`eval 'as_val=${'$as_ac_Lib'}
+		 $as_echo "$as_val"'`
+   if test "x$as_val" = x""yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_LIB$mozlibname" | $as_tr_cpp` 1
+_ACEOF
+
+  LIBS="-l$mozlibname $LIBS"
+
+else
+  { { $as_echo "$as_me:$LINENO: error: library \"$mozlibname\" is required for Mozilla LDAP" >&5
+$as_echo "$as_me: error: library \"$mozlibname\" is required for Mozilla LDAP" >&2;}
+   { (exit 1); exit 1; }; }
+fi
+
+    LDAP_LIBS_FE="-l$mozlibname $EXTRA_LDAP_LIBS"
+    LDAP_LIBS_BE="-l$mozlibname $EXTRA_LDAP_LIBS"
+  elif test "$PORTNAME" != "win32"; then
 
 { $as_echo "$as_me:$LINENO: checking for ldap_bind in -lldap" >&5
 $as_echo_n "checking for ldap_bind in -lldap... " >&6; }
diff --recursive -u misc/build/postgresql-9.1.1/src/include/pg_config.h.in misc/build/postgresql-9.1.1.patched/src/include/pg_config.h.in
--- misc/build/postgresql-9.1.1/src/include/pg_config.h.in	2011-09-22 23:57:57.000000000 +0200
+++ misc/build/postgresql-9.1.1.patched/src/include/pg_config.h.in	2011-12-15 09:30:37.000000000 +0100
@@ -785,6 +785,13 @@
    (--with-libxslt) */
 #undef USE_LIBXSLT
 
+/* Defined when using Microsof LDAP */
+#undef USE_MICROSOFT_LDAP
+
+/* Define to 1 to use the Mozilla LDAP C SDK instead of platform default
+   (OpenLDAP or Microsoft LDAP). (--with-mozldap) */
+#undef USE_MOZLDAP
+
 /* Define to select named POSIX semaphores. */
 #undef USE_NAMED_POSIX_SEMAPHORES