diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 136ffae6703..1496b859373 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2010-04-12  Steve Ellcey  <sje@cup.hp.com>
+
+	* function.c (assign_parms_initialize_all): Add unused attribute
+	to fntype.
+
 2010-04-12  Richard Guenther  <rguenther@suse.de>
 
 	* gsstruct.def (GSS_CALL): New.
diff --git a/gcc/function.c b/gcc/function.c
index 21cbb527391..f78bc98af28 100644
--- a/gcc/function.c
+++ b/gcc/function.c
@@ -2066,7 +2066,7 @@ struct assign_parm_data_one
 static void
 assign_parms_initialize_all (struct assign_parm_data_all *all)
 {
-  tree fntype;
+  tree fntype ATTRIBUTE_UNUSED;
 
   memset (all, 0, sizeof (*all));