diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 46dec8b7d6f0..61256e1fe64f 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -2,7 +2,8 @@ Tue Oct  5 15:37:04 1999  Michael Meissner  <meissner@cygnus.com>
 
 	* libgcc2.c (toplevel): If inhibit_libc is defined, declare
 	malloc, free, and atexit.  Don't include stddef.h twice.
-
+	(__clear_cache): Mark arguments as potentially unused.
+	
 	* frame.c (toplevel): If inhibit_libc is defined, declare
 	malloc and free.
 
diff --git a/gcc/libgcc2.c b/gcc/libgcc2.c
index 0cf8c5ce1aa6..3c3bbe839cc3 100644
--- a/gcc/libgcc2.c
+++ b/gcc/libgcc2.c
@@ -2470,7 +2470,8 @@ unsigned int __shtab[] = {
 #define INSN_CACHE_PLANE_SIZE (INSN_CACHE_SIZE / INSN_CACHE_DEPTH)
 
 void
-__clear_cache (char *beg, char *end)
+__clear_cache (char *beg __attribute__((__unused__)),
+	       char *end __attribute__((__unused__)))
 {
 #ifdef CLEAR_INSN_CACHE 
   CLEAR_INSN_CACHE (beg, end);