{stdenv, fetchurl}: stdenv.mkDerivation { name = "shadow-4.0.4.1"; builder = ./builder.sh; src = fetchurl { url = ftp://ftp.pld.org.pl/software/shadow/shadow-4.0.4.1.tar.bz2; md5 = "3a3d17d3d7c630b602baf66ae7434c61"; }; }