Some generic modules from blender 2.4x building with py3k and mostly working.

* Mathutils, Geometry, BGL, Mostly working, some //XXX comments for things to fix with py3

python import override (bpy_internal_import.c) so you can import python internal scripts from the BGE and running blender normally.

source/blender/python/generic/bpy_internal_import.h

@@ -0,0 +1,49 @@
+/* 
+ * $Id: bpy_internal_import.h 20434 2009-05-26 18:06:09Z campbellbarton $
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
+ * All rights reserved.
+ *
+ * This is a new part of Blender.
+ *
+ * Contributor(s): Willian P. Germano, Campbell Barton
+ *
+ * ***** END GPL LICENSE BLOCK *****
+*/
+
+/* Note, the BGE needs to use this too, keep it minimal */
+
+#ifndef EXPP_bpy_import_h
+#define EXPP_bpy_import_h
+
+#include <Python.h>
+#include "compile.h"		/* for the PyCodeObject */
+#include "eval.h"		/* for PyEval_EvalCode */
+
+PyObject*	bpy_text_import( char *name, int *found );
+PyObject*	bpy_text_reimport( PyObject *module, int *found );
+/* void		bpy_text_clear_modules( int clear_all );*/ /* Clear user modules */ 
+extern PyMethodDef bpy_import_meth[];
+extern PyMethodDef bpy_reload_meth[];
+
+/* The game engine has its own Main struct, if this is set search this rather then G.main */
+struct Main *bpy_import_main_get(void);
+void bpy_import_main_set(struct Main *maggie);
+
+
+#endif				/* EXPP_bpy_import_h */