diff -Naur x-unikey-1.0.4.orig/src/ukengine/usrkeymap.cpp x-unikey-1.0.4/src/ukengine/usrkeymap.cpp
--- x-unikey-1.0.4.orig/src/ukengine/usrkeymap.cpp	2008-12-18 00:39:38.000000000 +0900
+++ x-unikey-1.0.4/src/ukengine/usrkeymap.cpp	2008-12-18 00:38:56.000000000 +0900
@@ -23,6 +23,8 @@
 
 #include "stdafx.h"
 #include <iostream>
+#include <cstring>
+
 using namespace std;
 
 #include <ctype.h>