Fix travis.yml

.travis.yml

@@ -16,21 +16,21 @@ 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:$PATH
+ - export PATH=/opt/ghc/$GHCVER/bin:/opt/cabal/$CABALVER/bin:~/.cabal/bin:$PATH
 
 install:
  - cabal --version
  - echo "$(ghc --version) [$(ghc --print-project-git-commit-id 2> /dev/null || echo '?')]"
  - travis_retry cabal update
  - cabal install hpc-coveralls
- - cabal install --only-dependencies --enable-tests --enable-benchmarks --enable-coverage
+ - cabal install --only-dependencies --enable-tests --enable-benchmarks
 
 # Here starts the actual work to be performed for the package under
 # test; any command which exits with a non-zero exit code causes the
 # build to fail.
 script:
  # -v2 provides useful information for debugging
- - cabal configure --enable-tests --enable-benchmarks -v2
+ - cabal configure --enable-tests --enable-benchmarks --enable-coverage -v2
 
  # this builds all libraries and executables
  # (including tests/benchmarks)