From Fredric Marmond, fix to gcc3.4 build
From Fredric Marmond, fix to gcc3.4 build


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