gentoo-overlay/sys-cluster/galera/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
  <maintainer type="project">
    <email>mysql-bugs@gentoo.org</email>
    <name>MySQL</name>
  </maintainer>
  <use>
    <flag name="garbd">Install Galera Arbitrator - a stateless daemon which acts as a lightweight group member</flag>
  </use>
  <upstream>
    <remote-id type="launchpad">galera</remote-id>
  </upstream>
</pkgmetadata>