added in sqOpenGLRenderer.h
	#elif defined(UNIX)
	# include <GL/glx.h>
	# include "sqUnixOpenGL.h"


added in platform.exports
	#ifdef UNIX
	  XFN(stDisplay)
	  XFN(stWindow)
	#endif

added "-lGL" in Makefile to line 
	B3DAcceleratorPlugin.la : ...
	   ... -lGL
