gentoo-overlay/sys-freebsd/freebsd-usbin/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
  <maintainer type="project">
    <email>bsd@gentoo.org</email>
    <name>BSD Project</name>
  </maintainer>
  <use>
    <flag name="floppy">Enable floppy disk utilities (fdcontrol, fdformat, fdread, fdwrite).</flag>
    <flag name="audit">
      Build auditing tools.
    </flag>
    <flag name="netware">
      Build libraries and tools to work with NetWare protocols (IPX
      and NCP).
    </flag>
    <flag name='zfs'>Enable ZFS support.</flag>
  </use>
</pkgmetadata>