--- OLD/xc/lib/xtrans/Xtrans.c	Thu Jan  1 00:00:00 1970
+++ NEW/xc/lib/xtrans/Xtrans.c	Thu Jan  1 00:00:00 1970
@@ -47,6 +47,7 @@
  */
 
 #include <ctype.h>
+#include <stdlib.h>
 
 /*
  * The transport table contains a definition for every transport (protocol)