{stdenv, fetchurl}: stdenv.mkDerivation { name = "sane-backends-1.0.16"; src = fetchurl { url = ftp://ftp3.sane-project.org/pub/sane/old-versions/sane-backends-1.0.16/sane-backends-1.0.16.tar.gz; md5 = "bec9b9262246316b4ebfe2bc7451aa28"; }; }