default to Python3.3 on Linux for SCons and CMake, warn when building with python 3.2x or older.

also remove casts to keep Python3.2 warning quiet.

source/blender/python/intern/bpy_util.h

@@ -29,9 +29,14 @@
 #define __BPY_UTIL_H__
 
 #if PY_VERSION_HEX <  0x03020000
-#error "Python 3.2 or greater is required, you'll need to update your python."
+#  error "Python 3.2 or greater is required, you'll need to update your python."
 #endif
 
+#if PY_VERSION_HEX <  0x03030000
+#  warning "Python 3.2 will be deprecated soon, upgrade to Python 3.3."
+#endif
+
+
 #include "RNA_types.h" /* for EnumPropertyItem only */
 
 struct EnumPropertyItem;