gentoo-overlay/media-gfx/hugin/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
	<herd>graphics</herd>
	<longdescription>hugin is a panorama stitching program</longdescription>
	<use>
		<flag name='sift'>automatically align images with
		<pkg>media-gfx/autopano-sift</pkg> or
		<pkg>media-gfx/autopano-sift-C</pkg></flag>
	</use>
</pkgmetadata>