See [PR comment](https://github.com/SimonSapin/cairocffi/pull/18#issuecomment-24479488) first, but this seems to be Linux/Unix-specific, while I’d like cairocffi to Linux, OS X and Windows. See [`__init__.py`#L39](https://github.com/SimonSapin/cairocffi/blob/d64b250d007946febf613b30c31fdff71e0d8084/cairocffi/__init__.py#L39).