NixOS/nixpkgs — pull request #2740 by ttuegel (2014-05-24 23:25:48+00:00)
Title: clementine: disable unfree dependencies by default

Clementine has an optional dependency on libspotify, which is unfree.
Enabling libspotify unconditionally prevented Hydra from distributing
Clementine. Now, we optionally enable it based on
config.clementine.spotify.