More information can be found here
This is a Heroku buildpack for Haskell apps. It uses GHC 7.4.1 and cabal-1.16.0.1.
Based on https://github.com/puffnfresh/heroku-buildpack-haskell
Tested with demo app found here:
https://github.com/pufuwozu/haskell-buildpack-demo
$ cf push myapp --buildpack=https://github.com/BrianMMcClain/heroku-buildpack-haskell