$NetBSD$

--- rule_grammar.y.orig	2004-09-06 05:34:07.000000000 -0400
+++ rule_grammar.y	2004-09-06 05:34:17.000000000 -0400
@@ -34,3 +34,4 @@
+#include <stdio.h>
 #include <netinet/in.h>
 #include <stdlib.h>
 #include <sys/types.h>
