$NetBSD: patch-aa,v 1.4 2009/10/06 00:54:19 dmcmahill Exp $

needed for gcc44

--- modelgen/md.h.orig	2006-07-07 06:54:23.000000000 +0000
+++ modelgen/md.h	2009-10-05 17:52:16.000000000 +0000
@@ -29,4 +29,5 @@
 #include <new>
 #include <cstdarg>
+#include <cstring>
 #include <cassert>
 #include <cfloat>