gentoo-overlay/app-vim/youcompleteme/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
	<maintainer type="project">
		<email>vim@gentoo.org</email>
		<name>Gentoo Vim Project</name>
	</maintainer>
	<use>
		<flag name="clang">Enable semantic support for C-family languages using <pkg>sys-devel/clang</pkg></flag>
	</use>
</pkgmetadata>