{cabal} :

cabal.mkDerivation (self : {
  pname = "cpphs";
  version = "1.6";
  sha256 = "2e7c430fde17adbb3905e6d2a3c3845a40349c61a53fcfa40c733e8b43e73295";
  meta = {
    description = "A liberalised re-implementation of cpp, the C pre-processor";
  };
})