Added -osgGA to the Makefile list.
Added -osgGA to the Makefile list.


tomasthoresen/osg,artoolkit/osg,tomasthoresen/osg,scrawl/osg,openscenegraph/osg,marchelbling/osg,artoolkit/osg,openscenegraph/osg,scrawl/osg,artoolkit/osg,marchelbling/osg,marchelbling/osg,marchelbling/osg,openscenegraph/osg,jtorresfabra/osg,tomasthoresen/osg,scrawl/osg,jtorresfabra/osg,jtorresfabra/osg,tomasthoresen/osg,jtorresfabra/osg,scrawl/osg,openscenegraph/osg,artoolkit/osg