diff -u -r ../w3m-0.5.3-git20170102/Str.h ./Str.h
--- ../w3m-0.5.3-git20170102/Str.h	2017-01-02 13:43:38.000000000 +0100
+++ ./Str.h	2017-06-29 01:05:35.903835683 +0200
@@ -17,6 +17,7 @@
 #define GC_STR_H
 #include <stdio.h>
 #include <string.h>
+#include <strings.h>
 #include <limits.h>
 #ifdef __EMX__
 #define strcasecmp	stricmp