$NetBSD: patch-aa,v 1.4 2017/05/05 07:34:06 maya Exp $

Some systems don't have <stdbool.h>.

--- src/Headers/basic.h.orig	2003-11-02 21:55:03.000000000 +0100
+++ src/Headers/basic.h	2009-03-03 09:43:05.000000000 +0100
@@ -26,7 +26,7 @@
 # include <stdlib.h>
 # include <stdio.h>
 
-# if !defined (WIN32) &&  !(defined (OS2) && defined (__IBMC__))
+# if (__STDC_VERSION__ >= 199901L)
 /* Microsoft VC++ still doesn't support ISO C99... */
 # include <stdbool.h>
 # endif