fix for error when changing DISBALE_PYTHON -> WITH_PYTHON,

This define wasn't set in some parts of the BGE causing problems with the view matrix.
in CMake define for the entire BGE fixes this.

source/blender/python/intern/bpy.c

@@ -25,6 +25,7 @@
 /* This file defines the '_bpy' module which is used by python's 'bpy' package.
  * a script writer should never directly access this module */
  
+#define WITH_PYTHON /* for AUD_PyInit.h, possibly others */
 
 #include "bpy_util.h" 
 #include "bpy_rna.h"