Added an #ifdef check around the glutSpecialUpFunc to help compile unde old version of GLUT.
Added an #ifdef check around the glutSpecialUpFunc to help compile unde old
version of GLUT.


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