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

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
<herd>proxy-maintainers</herd>
<maintainer>
  <email>andrew.cremins@gmail.com</email>
</maintainer>
<use>
  <flag name='festival'>Enable support for
    <pkg>app-accessibility/festival</pkg></flag>
  <flag name='flite'>Enable support for <pkg>app-accessibility/flite</pkg>
    (festival-lite)</flag>
  <flag name='openstreetmap'>Enable openstreetmap support</flag>
  <flag name='scripting'>Enable scripting support</flag>
</use>
</pkgmetadata>