Add #ifndef's around the comparison operator's against const T* now that the implicit cast operator has been added.
Add #ifndef's around the comparison operator's against const T* now that the
implicit cast operator has been added.


koshman86/osg,ghub/osg,stmh/osg,koshman86/osg,stmh/osg,koshman86/osg,koshman86/osg,XiaoCC/osg,artoolkit/osg,stmh/osg,ntoand/osg,XiaoCC/osg,omega-hub/osg,omega-hub/osg,XiaoCC/osg,artoolkit/osg,XiaoCC/osg,ntoand/osg,omega-hub/osg,stmh/osg,XiaoCC/osg,ntoand/osg,omega-hub/osg,ghub/osg,stmh/osg,ntoand/osg,artoolkit/osg,ghub/osg,ghub/osg,artoolkit/osg