--- OLD/xc/config/util/lndir.c	Thu Jan  1 00:00:00 1970
+++ NEW/xc/config/util/lndir.c	Thu Jan  1 00:00:00 1970
@@ -41,6 +41,7 @@
 #include <X11/Xos.h>
 #include <X11/Xfuncproto.h>
 #include <stdio.h>
+#include <stdlib.h>
 #include <sys/stat.h>
 #include <sys/param.h>
 #include <errno.h>