Cabal 1.18 makes a breaking change. Fix Setup.lhs
However, we no longer need to feed in our own function anymore since `simpleProgram` handles it.
To solve patperry/hs-gsl-random#5
Merge pull request #7 from kloplop321/master

Cabal 1.18 makes a breaking change. Fix Setup.lhs so it configures, builds, and installs.