--- OLD/xc/lib/xtrans/Xtransutil.c	Thu Jan  1 00:00:00 1970
+++ NEW/xc/lib/xtrans/Xtransutil.c	Thu Jan  1 00:00:00 1970
@@ -53,6 +53,7 @@
  * the internal implementation.
  */
 
+#include <stdlib.h>
 #ifdef XTHREADS
 #include <X11/Xthreads.h>
 #endif