XQuartz: GL: Explicitly set GL_EXT symbols to 0 if they are not in OpenGL.framework to prevent X11's glext.h from setting them to 1.

hw/xquartz/GL/indirect.c

@@ -44,6 +44,79 @@
 #include <OpenGL/OpenGL.h>
 #include <OpenGL/CGLContext.h>
 
+/* These next few GL_EXT pre-processing blocks are to explicitly define 
+ * these symbols to 0 if they are not set by OpenGL.framework.  This
+ * prevents the X11 glext.h from setting them to 1.
+ */
+
+#ifndef GL_EXT_fragment_shader
+#define GL_EXT_fragment_shader 0
+#endif
+
+#ifndef GL_EXT_blend_equation_separate
+#define GL_EXT_blend_equation_separate 0
+#endif
+
+#ifndef GL_EXT_blend_func_separate
+#define GL_EXT_blend_func_separate 0
+#endif
+
+#ifndef GL_EXT_depth_bounds_test
+#define GL_EXT_depth_bounds_test 0
+#endif
+
+#ifndef GL_EXT_compiled_vertex_array
+#define GL_EXT_compiled_vertex_array 0
+#endif
+
+#ifndef GL_EXT_cull_vertex
+#define GL_EXT_cull_vertex 0
+#endif
+
+#ifndef GL_EXT_fog_coord
+#define GL_EXT_fog_coord 0
+#endif
+
+#ifndef GL_EXT_framebuffer_blit
+#define GL_EXT_framebuffer_blit 0
+#endif
+
+#ifndef GL_EXT_framebuffer_object
+#define GL_EXT_framebuffer_object 0
+#endif
+
+#ifndef GL_EXT_gpu_program_parameters
+#define GL_EXT_gpu_program_parameters 0
+#endif
+
+#ifndef GL_EXT_multi_draw_arrays
+#define GL_EXT_multi_draw_arrays 0
+#endif
+
+#ifndef GL_EXT_point_parameters
+#define GL_EXT_point_parameters 0
+#endif
+
+#ifndef GL_EXT_polygon_offset
+#define GL_EXT_polygon_offset 0
+#endif
+
+#ifndef GL_EXT_secondary_color
+#define GL_EXT_secondary_color 0
+#endif
+
+#ifndef GL_EXT_stencil_two_side
+#define GL_EXT_stencil_two_side 0
+#endif
+
+#ifndef GL_EXT_timer_query
+#define GL_EXT_timer_query 0
+#endif
+
+#ifndef GL_EXT_vertex_array
+#define GL_EXT_vertex_array 0
+#endif
+
 #include <GL/glxproto.h>
 #include <windowstr.h>
 #include <resource.h>