language: haskell env: - GHCVER=7.6.3 - GHCVER=7.8.4 before_install: - sudo add-apt-repository -y ppa:hvr/ghc - sudo apt-get update - sudo apt-get install -y -qq cabal-install-1.20 ghc-$GHCVER - export PATH=/opt/ghc/$GHCVER/bin:/opt/cabal/1.20/bin:$PATH