$NetBSD$

- Fix LP64 issues by including proper standard headers.

--- buildob.c.orig	1997-07-27 20:49:42.000000000 +0000
+++ buildob.c
@@ -14,6 +14,8 @@
 
 
 #include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
 
 
 #include "connect4.h"
