<services>
  <service name="download_url">
    <param name="protocol">http</param>
    <param name="host">ftp.gnome.org</param>
    <param name="path">/pub/GNOME/sources/pangomm/2.28/pangomm-2.28.2.tar.bz2</param>
  </service>
  <service name="set_version" />
</services>