NixOS/nixpkgs — pull request #3264 by tomberek (2014-07-13 20:32:09+00:00)
Title: Adds GHC 7.8.3

This seems to work well for GHC 7.8.3. @peti has some additional changes in #3232 that seem very interesting (static binaries! will they be fully static?).

#3232 also adds profiling and non-profiling variants as well as what I believe are specifics to ensure binaries are built via Hydra.