--- lib/cpp/antlr/CharScanner.hpp.orig	2006-11-02 06:37:17.000000000 +0900
+++ lib/cpp/antlr/CharScanner.hpp	2016-03-05 13:18:19.000000000 +0900
@@ -8,6 +8,7 @@
  * $Id: //depot/code/org.antlr/release/antlr-2.7.7/lib/cpp/antlr/CharScanner.hpp#2 $
  */
 
+#include <strings.h>
 #include <antlr/config.hpp>
 
 #include <map>
