.travis.yml

language: haskell
env:
 #- GHCVER=7.4.2 CABALVER=1.18
 - GHCVER=7.6.3 CABALVER=1.18
 - GHCVER=7.8.4 CABALVER=1.18
 - GHCVER=7.10.1 CABALVER=1.22
 - GHCVER=7.10.2 CABALVER=1.22
 - GHCVER=head  CABALVER=head

matrix:
  allow_failures:
 #  - env: GHCVER=7.10.1 CABALVER=1.22
   - env: GHCVER=head  CABALVER=head

before_install:
 - travis_retry sudo add-apt-repository -y ppa:hvr/ghc
 - travis_retry sudo apt-get update
 - travis_retry sudo apt-get install cabal-install-$CABALVER ghc-$GHCVER
 - export PATH=/opt/ghc/$GHCVER/bin:/opt/cabal/$CABALVER/bin:$HOME/.cabal/bin:$PATH
 - cabal --version
 - cabal install happy alex

install:
 - travis_retry cabal update
 - cabal install --only-dependencies --enable-tests

script:
 - cabal configure --enable-tests
 - cabal build
 # - cabal test