diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index f25438c2e41..432d80aa6f5 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+Tue Aug 31 22:08:03 1999  Marc Espie <espie@cvs.openbsd.org>
+
+	* alias.c (non_local_reference_p): Constify fmt.
+
 Tue Aug 31 23:19:35 1999  Michael Meissner  <meissner@cygnus.com>
 
 	* config/i386/xm-cygwin.h (HAVE_DOS_BASED_FILE_SYSTEM): Define.
diff --git a/gcc/alias.c b/gcc/alias.c
index 9de034a9f13..a94793ea12c 100644
--- a/gcc/alias.c
+++ b/gcc/alias.c
@@ -1431,7 +1431,7 @@ nonlocal_reference_p (x)
   /* Recursively scan the operands of this expression.  */
 
   {
-    register char *fmt = GET_RTX_FORMAT (code);
+    register const char *fmt = GET_RTX_FORMAT (code);
     register int i;
     
     for (i = GET_RTX_LENGTH (code) - 1; i >= 0; i--)