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/gameengine/SceneGraph/SConscript

@@ -12,4 +12,8 @@ if env['WITH_BF_CXX_GUARDEDALLOC']:
     defs.append('WITH_CXX_GUARDEDALLOC')
     incs += ' #intern/guardedalloc'
 
+if env['WITH_BF_PYTHON']:
+    incs += ' ' + env['BF_PYTHON_INC']
+    defs.append('WITH_PYTHON')
+
 env.BlenderLib ( 'ge_scenegraph', sources, Split(incs), defs, libtype=['core','player'], priority=[325,85], cxx_compileflags=env['BGE_CXXFLAGS'])