Fix for OSX build across both Tiger and 10.3.x
Fix for OSX build across both Tiger and 10.3.x


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