From Andy Skinner, warning fix for Windows 64-bit build
From Andy Skinner, warning fix for Windows 64-bit build


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