ghc haskell-call-stack haskell-HUnit haskell-erf haskell-extensible-exceptions haskell-random haskell-primitive haskell-tf-random haskell-QuickCheck haskell-colour haskell-ansi-terminal haskell-clock haskell-hspec-expectations haskell-quickcheck-io haskell-setenv haskell-hspec-core haskell-logict haskell-hashable haskell-nats haskell-smallcheck