{stdenv, fetchurl, libosip, openssl, pkgconfig }: stdenv.mkDerivation rec { version = "4.0.0"; src = fetchurl { url = "http://download.savannah.gnu.org/releases/exosip/libeXosip2-${version}.tar.gz"; sha256 = "1rdjr3x7s992w004cqf4xji1522an9rpzsr9wvyhp685khmahrsj"; }; name = "libexosip2-${version}"; buildInputs = [ libosip openssl pkgconfig ]; meta = { license = "GPLv2+"; description = "Library that hides the complexity of using the SIP protocol"; }; }