$OpenBSD: patch-do_constants_c,v 1.1.1.1 2010/08/23 09:31:23 ajacoutot Exp $
--- do_constants.c.orig	Mon Aug 23 07:47:28 2010
+++ do_constants.c	Mon Aug 23 07:47:40 2010
@@ -290,6 +290,7 @@ modification follow.
 
 */
 
+#include <string.h>
 
 #include "periodic.h"
 
