Index: wmMand/xvgifwr.c
--- wmMand/xvgifwr.c.orig
+++ wmMand/xvgifwr.c
@@ -38,6 +38,7 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <ctype.h>
 #include <stddef.h>
 #include <string.h>