--- engine/WnnRomkan.c.orig	Wed May 19 16:04:14 2010
+++ engine/WnnRomkan.c	Wed May 19 16:04:22 2010
@@ -21,6 +21,7 @@ History:
 int RomkanExists;
 
 #include <stdio.h>
+#include <string.h>
 #include WNN_RKSPCL
 #include "onew.h"
 
