From 8ca714fa67b7a674c4022bd8d17094058a940299 Mon Sep 17 00:00:00 2001
From: James Chen <jianhua.chen@cocos2d-x.org>
Date: Wed, 26 Mar 2014 19:43:34 +0800
Subject: [PATCH] Windows will not include <alloca.h>.

---
 external/chipmunk/src/cpCollision.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/external/chipmunk/src/cpCollision.c b/external/chipmunk/src/cpCollision.c
index e29e4bf82e..3474dc6700 100644
--- a/external/chipmunk/src/cpCollision.c
+++ b/external/chipmunk/src/cpCollision.c
@@ -22,6 +22,10 @@
 #include <stdio.h>
 #include <string.h>
 
+#ifndef WIN32
+#include <alloca.h>
+#endif
+
 #include "chipmunk_private.h"
 
 #if DEBUG && 0