{cabal, perl}:
cabal.mkDerivation (self : {
pname = "alex";
version = "2.3.5"; # Haskell Platform 2011.2.0.0
name = self.fname;
sha256 = "0lyjiq4lmii2syk6838ln32qvn8c0ljf1ypsggahy748k05x79if";
extraBuildInputs = [perl];
meta = {
description = "A lexical analyser generator for Haskell";
};
})