gentoo-overlay/app-arch/unzip/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
	<herd>base-system</herd>
	<use>
		<flag name="natspec">Use <pkg>dev-libs/libnatspec</pkg> to correctly decode non-ascii file names archived in Windows.</flag>
	</use>
	<upstream>
		<remote-id type="sourceforge">infozip</remote-id>
	</upstream>
</pkgmetadata>