commit x64 compilation from lulu cause the other branch dont seems to compile properly at home

include/engine/physic/physic_world.cpp

@@ -0,0 +1,19 @@
+/* -----------------------------------------------------------------------------
+	GSFramework
+	Copyright 2001-2013 Emmanuel Julien. All Rights Reserved.
+----------------------------------------------------------------------------- */
+
+
+		#include "physic/physic_world.h"
+
+		using namespace GS::S3D;
+
+
+//------------------------------------------------------------------------------
+PhysicWorld::PhysicWorld()
+{
+	timestep = 1.f / 60.f;
+	gravity.Set(0, -9.8f, 0);	// m.s2
+	world_interface = NULL;
+}
+//------------------------------------------------------------------------------