[OGRE-129] Fix building on OS X with C++11
[OGRE-129] Fix building on OS X with C++11

paroj/ogre,paroj/ogre,paroj/ogre,RealityFactory/ogre,RealityFactory/ogre,OGRECave/ogre,OGRECave/ogre,OGRECave/ogre,RealityFactory/ogre,paroj/ogre,OGRECave/ogre,RealityFactory/ogre,OGRECave/ogre,RealityFactory/ogre,paroj/ogre