From 4745401b2af1023d25073f5036682f351435e0b8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?V=C3=ADtor=20Santos=20Costa?= <vsc@dcc.fc.up.pt>
Date: Wed, 10 Sep 2014 00:38:31 -0500
Subject: [PATCH] use stdbool

---
 include/SWI-Prolog.h | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/include/SWI-Prolog.h b/include/SWI-Prolog.h
index e302b2e4c..afb632bb7 100755
--- a/include/SWI-Prolog.h
+++ b/include/SWI-Prolog.h
@@ -43,13 +43,27 @@ extern "C" {
 #include	<Yap/YapInterface.h>
 #endif
 #include	<stdarg.h>
-#include	<stdlib.h>
 #include        <stddef.h>
 #include        <wchar.h>
 #if HAVE_TIME_H
 #include <time.h>
 #endif
 
+#if HAVE_STDBOOL_H
+
+#include <stdbool.h>
+
+#elif !defined(true)
+
+typedef int _Bool;
+
+#define bool _Bool
+
+#define true 1
+
+#define false 0
+
+#endif
 #ifndef __WINDOWS__
 #if defined(_MSC_VER) || defined(__MINGW32__)
 #define __WINDOWS__ 1