gentoo-overlay/app-backup/boxbackup/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
	<!-- maintainer-needed -->
	<longdescription>An open source, completely automatic on-line backup
		system for UNIX.</longdescription>
	<use>
		<flag name="client-only">Disable server support, and just build a
			client</flag>
	</use>
	<upstream>
		<remote-id type="sourceforge">boxbackup</remote-id>
	</upstream>
</pkgmetadata>