Possible fix for Lion testgraphics crash.
Possible fix for Lion testgraphics crash.

svn path=/trunk/libavg/; revision=7079

libavg/libavg,yyd01245/libavg,hoodie/libavg,scotty007/libavg,libavg/libavg,libavg/libavg,yyd01245/libavg,scotty007/libavg,yyd01245/libavg,th3infinity/libavg,yyd01245/libavg,th3infinity/libavg,libavg/libavg,scotty007/libavg,hoodie/libavg,hoodie/libavg,hoodie/libavg,scotty007/libavg,th3infinity/libavg,th3infinity/libavg