--- lib/string.cc.orig	2005-11-13 13:11:17.000000000 +0800
+++ lib/string.cc	2023-05-29 07:24:40.000000000 +0800
@@ -27,6 +27,7 @@
 
 #include <iostream>
 #include <ctype.h>
+#include <cstring>
 
 #include "scriptix.h"
 #include "system.h"