--- OLD/xc/programs/xwd/list.c	Thu Jan  1 00:00:00 1970
+++ NEW/xc/programs/xwd/list.c	Thu Jan  1 00:00:00 1970
@@ -32,6 +32,7 @@
   ----------------------------------------------------------------------- **/
 
 #include <stdio.h>
+#include <stdlib.h>
 #include "list.h"