Fixed build with OSG_USE_REF_PTR_IMPLICIT_OUTPUT set to OFF.
Fixed build with OSG_USE_REF_PTR_IMPLICIT_OUTPUT set to OFF.


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