Made the static mutex a pointer to a static mutex to get round a exit problem on deletion of the plugin.
Made the static mutex a pointer to a static mutex to get round a exit
problem on deletion of the plugin.


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