csfml 2.0 (new formula)

CSFML are the C bindings to the SFML library (already present in
Homebrew).
Looks like this is the only option for now, annoyingly. Could you perhaps file an upstream issue with SFML and link them to something like http://stackoverflow.com/questions/10765885/how-to-install-your-custom-cmake-find-module? They should really be writing out a `SFMLConfig.cmake` or `sfml-config.cmake` file.