{ stdenv, fetchurl }: let version = "3.0.2"; baseName = "siege"; in stdenv.mkDerivation rec { name = "${baseName}-${version}"; src = fetchurl { url = "http://www.joedog.org/pub/siege/${name}.tar.gz"; sha256 = "0b86rvcrjxy6h9w32bhpcm1gwmn223mf9f30dfsnaw51w90kn716"; }; NIX_LDFLAGS = stdenv.lib.optionalString stdenv.isLinux "-lgcc_s"; }