gentoo-overlay/app-arch/cabextract/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
  <maintainer type="project">
    <email>fonts@gentoo.org</email>
    <name>Fonts</name>
  </maintainer>
  <use>
    <flag name="extras">Install experimental extra tools: wince_info and
      wince_rename for examining and processing Windows CE installation cabinet
      header files; cabinfo for examining the structure of a cab file.
    </flag>
  </use>
</pkgmetadata>