$OpenBSD: patch-modelgen_md_h,v 1.1 2018/10/28 08:13:41 bentley Exp $

Index: modelgen/md.h
--- modelgen/md.h.orig
+++ modelgen/md.h
@@ -40,6 +40,7 @@
 #include <climits>
 #include <limits>
 #include <cstdio>
+#include <cstring>
 #include <cerrno>
 #include <csetjmp>
 #include <csignal>
