gentoo-overlay/gnome-base/nautilus/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
<maintainer type="project">
	<email>gnome@gentoo.org</email>
	<name>Gentoo GNOME Desktop</name>
</maintainer>
<use>
	<flag name="gstreamer">Enable the Audio/Video file properties page</flag>
	<flag name="packagekit">Use packagekit to search for programs to open
		unknown file types</flag>
	<flag name="previewer">Use <pkg>gnome-extra/sushi</pkg> to preview files
		from the file mananger</flag>
	<flag name="sendto">Enable the nautilus-sendto extension to send files to
		various locations/devices</flag>
</use>
</pkgmetadata>