Removed cmath include as it was causing build problems under Cgwin
Removed cmath include as it was causing build problems under Cgwin


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