[OGRE-309] Change parentheses to curly braces for correct variable resolution in OS X CMake files for architecture specification.
[OGRE-309] Change parentheses to curly braces for correct variable resolution in OS X CMake files for architecture specification.

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