{ mkDerivation, base, fetchurl, mtl }: mkDerivation { pname = "indentation-core"; version = "0.0.0.1"; src = fetchurl { url = "http://example.org/"; sha256 = "abc"; }; libraryHaskellDepends = [ base mtl ]; homepage = "https://bitbucket.org/adamsmd/indentation"; description = "Indentation sensitive parsing combinators core library"; license = stdenv.lib.licenses.bsd3; }