From c0789b1da3ec0d40d7bb77963f4311eacf555616 Mon Sep 17 00:00:00 2001
From: Bart van Strien <bart@bartbes.ath.cx>
Date: Sat, 18 Dec 2010 12:38:29 +0100
Subject: [PATCH] Remove references to old physics callbacks, fixes #139

---
 src/modules/physics/box2d/World.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/modules/physics/box2d/World.cpp b/src/modules/physics/box2d/World.cpp
index e075bee66..90ac1200a 100644
--- a/src/modules/physics/box2d/World.cpp
+++ b/src/modules/physics/box2d/World.cpp
@@ -153,12 +153,16 @@ namespace box2d
 		switch(n)
 		{
 		case 4:
+			if (result.ref) delete result.ref;
 			result.ref = luax_refif(L, LUA_TFUNCTION);
 		case 3:
+			if (remove.ref) delete remove.ref;
 			remove.ref = luax_refif(L, LUA_TFUNCTION);
 		case 2:
+			if (persist.ref) delete persist.ref;
 			persist.ref = luax_refif(L, LUA_TFUNCTION);
 		case 1:
+			if (add.ref) delete add.ref;
 			add.ref = luax_refif(L, LUA_TFUNCTION);
 		}