opengl.glu: fix missing library error on Windows and Linux
opengl.glu: fix missing library error on Windows and Linux
mcandre/factor,littledan/Factor,seckar/factor,cataska/factor,ceninan/factor,seckar/factor,kingcons/factor,kingcons/factor,littledan/Factor,mcandre/factor,littledan/Factor,erg/factor,mcandre/factor,mcandre/factor,mcandre/factor,kingcons/factor,cataska/factor,erg/factor,erg/factor,cataska/factor,kingcons/factor,ceninan/factor,ceninan/factor,littledan/Factor,erg/factor,mcandre/factor,ceninan/factor,seckar/factor,cataska/factor,erg/factor,erg/factor,erg/factor,mcandre/factor