gentoo-overlay/app-doc/tldp-howto/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
	<maintainer type="project">
		<email>base-system@gentoo.org</email>
		<name>Gentoo Base System</name>
	</maintainer>
	<stabilize-allarches/>
	<use>
		<flag name="html">Install multi-chapter HTML docs</flag>
		<flag name="htmlsingle">Install all-on-one-page HTML docs</flag>
		<flag name="pdf">Install pdf docs</flag>
		<flag name="text">Install plain-text docs</flag>
	</use>
</pkgmetadata>