{ mkDerivation, base, fetchurl, hspec, parsec }: mkDerivation { pname = "bbdb"; version = "0.8"; src = fetchurl { url = "http://example.org/"; sha256 = "abc"; }; libraryHaskellDepends = [ base parsec ]; testHaskellDepends = [ base hspec parsec ]; homepage = "https://github.com/henrylaxen/bbdb"; description = "Ability to read, write, and modify BBDB files"; license = stdenv.lib.licenses.gpl3; }