{ stdenv, fetchurl, openssl }: stdenv.mkDerivation { name = "stunnel-4.56"; src = fetchurl { url = http://www.stunnel.org/downloads/stunnel-4.56.tar.gz; sha256 = "14qjhwfa0y17ipnd5mc970vfmralvgaxfl6fk0rl91vdwbxjrblw"; }; buildInputs = [openssl]; configureFlags = [ "--with-ssl=${openssl}" ]; meta = { description = "Stunnel - Universal SSL wrapper"; homepage = http://www.stunnel.org/; license = "GPLv2"; }; }