<services>
 <service name="download_url" mode="manual">
   <param name="protocol">https</param>
   <param name="host">download.gnome.org</param>
   <param name="path">sources/gdk-pixbuf/2.42/gdk-pixbuf-2.42.11.tar.xz</param>
 </service>
 <service name="set_version" mode="manual" />
</services>