diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index d63624042b3..792d79514b9 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2005-10-24  Andrew Pinski  <pinskia@physics.uc.edu>
+
+	PR c/23103
+	* c-format.c (check_format_types): Use lang_hooks.types_compatible_p
+	instead of pointer equality when comparing types.
+
 2005-10-24  James E. Wilson  <wilson@specifix.com>
 
 	* sched-deps.c (flush_pending_lists): Pass 1 not 0 in first two
diff --git a/gcc/c-format.c b/gcc/c-format.c
index 7d5af422eb5..82f2bc77b0f 100644
--- a/gcc/c-format.c
+++ b/gcc/c-format.c
@@ -2216,7 +2216,7 @@ check_format_types (format_wanted_type *types, const char *format_start,
 			  || cur_type == unsigned_char_type_node);
 
       /* Check the type of the "real" argument, if there's a type we want.  */
-      if (wanted_type == cur_type)
+      if (lang_hooks.types_compatible_p (wanted_type, cur_type))
 	continue;
       /* If we want 'void *', allow any pointer type.
 	 (Anything else would already have got a warning.)