Move conditional compilation around namespace.
Move conditional compilation around namespace.

damiensawyer/cassette,honestegg/cassette,damiensawyer/cassette,BluewireTechnologies/cassette,BluewireTechnologies/cassette,honestegg/cassette,honestegg/cassette,andrewdavey/cassette,andrewdavey/cassette,damiensawyer/cassette,andrewdavey/cassette