{ cabal }: cabal.mkDerivation (self: { pname = "mtl"; version = "1.1.1.1"; sha256 = "157gbrgrg0l9r72nq45dkach53yncysif4qglsaql28g37djc4x6"; meta = { description = "Monad transformer library"; license = self.stdenv.lib.licenses.bsd3; platforms = self.ghc.meta.platforms; maintainers = [ self.stdenv.lib.maintainers.andres ]; }; })