From Mathias Froehlich, "Included a fix for my past pbuffer change. The version test fo 'need at least glx 1.1' was broken, even if no implementation had yet a chance to trigger that :)
From Mathias Froehlich, "Included a fix for my past pbuffer change. The version test fo 'need at least
glx 1.1' was broken, even if no implementation had yet a chance to trigger
that :)

Attached a fix for that broken test.
Based on rev 8358"


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