Fixed Gfx conditional compilation
Fixed Gfx conditional compilation

oldmanmike/piston,KevinFrans3/piston,getynge/piston,axelmagn/piston,PistonDevelopers/piston,tempbottle/piston,PistonDevelopers/piston,caldwell/piston,Potpourri/piston,bvssvni/piston,bvssvni/piston,mitchmindtree/piston,placrosse/piston