Ghost Context Refactor

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

intern/cycles/app/CMakeLists.txt

@@ -21,8 +21,9 @@ set(LIBRARIES
 	cycles_util
 	${BOOST_LIBRARIES}
 	${OPENEXR_LIBRARIES}
-	${OPENGL_LIBRARIES}
-	${CYCLES_GLEW_LIBRARY}
+	${BLENDER_GL_LIBRARIES}
+	bf_intern_glew_mx
+	${CYCLES_APP_GLEW_LIBRARY}
 	${OPENIMAGEIO_LIBRARIES}
 	${PNG_LIBRARIES}
 	${JPEG_LIBRARIES}
@@ -32,6 +33,8 @@ set(LIBRARIES
 	extern_cuew
 )
 
+add_definitions(${GL_DEFINITIONS})
+
 if(WIN32)
 	list(APPEND LIBRARIES ${PTHREADS_LIBRARIES})
 endif()