diff --git a/sysdeps/generic/memmem.c b/sysdeps/generic/memmem.c
index 9e27548dd5..c40462104a 100644
--- a/sysdeps/generic/memmem.c
+++ b/sysdeps/generic/memmem.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991,92,93,94,96,97,98,2000 Free Software Foundation, Inc.
+/* Copyright (C) 1991,92,93,94,96,97,98,2000,2004 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -19,6 +19,10 @@
 #include <stddef.h>
 #include <string.h>
 
+#ifndef _LIBC
+# define __builtin_expect(expr, val)   (expr)
+#endif
+
 #undef memmem
 
 /* Return the first occurrence of NEEDLE in HAYSTACK.  */