gentoo-overlay/app-misc/openastro/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
  <!-- maintainer-needed -->
  <upstream>
    <maintainer status="active">
      <email>devel@openastro.org</email>
      <name>Pelle van der Scheer</name>
    </maintainer>
    <bugs-to>https://bugs.launchpad.net/openastro.org</bugs-to>
  </upstream>
  <use>
    <flag name="jpeg">Enable exporting Astrological Charts to jpeg</flag>
    <flag name="png">Enable exporting Astrological Charts to png</flag>
  </use>
</pkgmetadata>