Ghost Context Refactor

https://developer.blender.org/D643
Separates graphics context creation from window code in Ghost so that they can vary separately.

source/blender/python/generic/CMakeLists.txt

@@ -22,8 +22,10 @@ set(INC
 	.
 	../../blenkernel
 	../../blenlib
+	../../gpu
 	../../makesdna
 	../../../../intern/guardedalloc
+	../../../../intern/glew-mx
 )
 
 set(INC_SYS
@@ -46,6 +48,6 @@ set(SRC
 	py_capi_utils.h
 )
 
-add_definitions(-DGLEW_STATIC)
+add_definitions(${GL_DEFINITIONS})
 
 blender_add_lib(bf_python_ext "${SRC}" "${INC}" "${INC_SYS}")

source/blender/python/generic/bgl.c

@@ -33,7 +33,7 @@
 #include <Python.h>
 
 #include "bgl.h" /*This must come first */
-#include <GL/glew.h>
+#include "GPU_glew.h"
 #include "MEM_guardedalloc.h"
 
 #include "BLI_utildefines.h"