--- libast.h.orig	Sat Jun 16 02:30:28 2001
+++ libast.h	Fri Sep  7 01:01:50 2001
@@ -40,6 +40,7 @@
 # endif
 #endif
 
+#include <limits.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <time.h>