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diff --git a/extern/bullet2/BulletCollision/NarrowPhaseCollision/btPointCollector.h b/extern/bullet2/BulletCollision/NarrowPhaseCollision/btPointCollector.h
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+++ b/extern/bullet2/BulletCollision/NarrowPhaseCollision/btPointCollector.h
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+/*
+Bullet Continuous Collision Detection and Physics Library
+Copyright (c) 2003-2006 Erwin Coumans  http://continuousphysics.com/Bullet/
+
+This software is provided 'as-is', without any express or implied warranty.
+In no event will the authors be held liable for any damages arising from the use of this software.
+Permission is granted to anyone to use this software for any purpose, 
+including commercial applications, and to alter it and redistribute it freely, 
+subject to the following restrictions:
+
+1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
+2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
+3. This notice may not be removed or altered from any source distribution.
+*/
+
+#ifndef POINT_COLLECTOR_H
+#define POINT_COLLECTOR_H
+
+#include "btDiscreteCollisionDetectorInterface.h"
+
+
+
+struct btPointCollector : public btDiscreteCollisionDetectorInterface::Result
+{
+	
+	
+	btVector3 m_normalOnBInWorld;
+	btVector3 m_pointInWorld;
+	btScalar	m_distance;//negative means penetration
+
+	bool	m_hasResult;
+
+	btPointCollector () 
+		: m_distance(btScalar(BT_LARGE_FLOAT)),m_hasResult(false)
+	{
+	}
+
+	virtual void setShapeIdentifiersA(int partId0,int index0)
+	{
+		(void)partId0;
+		(void)index0;
+			
+	}
+	virtual void setShapeIdentifiersB(int partId1,int index1)
+	{
+		(void)partId1;
+		(void)index1;
+	}
+
+	virtual void addContactPoint(const btVector3& normalOnBInWorld,const btVector3& pointInWorld,btScalar depth)
+	{
+		if (depth< m_distance)
+		{
+			m_hasResult = true;
+			m_normalOnBInWorld = normalOnBInWorld;
+			m_pointInWorld = pointInWorld;
+			//negative means penetration
+			m_distance = depth;
+		}
+	}
+};
+
+#endif //POINT_COLLECTOR_H
+