gentoo-overlay/net-libs/libosmocore/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
	<maintainer type="project">
		<email>radio@gentoo.org</email>
		<name>Radio</name>
	</maintainer>
	<use>
		<flag name="pcsc-lite">Enable smartcard support with <pkg>sys-apps/pcsc-lite</pkg></flag>
	</use>
</pkgmetadata>