File _service of Package poppler
<services> <service name="tar_scm"> <param name="url">git://git.freedesktop.org/git/poppler/poppler</param> <param name="scm">git</param> </service> <service name="recompress"> <param name="file">*.tar</param> <param name="compression">xz</param> </service> <service name="set_version" /> </services>