gentoo-overlay/app-text/gonzui/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
<maintainer>
<email>maintainer-needed@gentoo.org</email>
</maintainer>
<use>
  <flag name='lha'>Enable LHA archive support</flag>
  <flag name='rpm'>Enable rpm support</flag>
  <flag name='zip'>Enable ZIP archive support</flag>
</use>
</pkgmetadata>