gentoo-overlay/net-dns/pdnsd/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
  <!-- maintainer-needed -->
  <longdescription>
    A proxy DNS server with permanent caching (the cache contents are
    written to hard disk on exit) that is designed to cope with
    unreachable or down DNS servers (for example in dial-in
    networking).
  </longdescription>
  <use>
    <flag name="urandom">
      Linux-only: use /dev/urandom (pseudo-random number generation)
      instead of the default use of random() PRNG.
    </flag>
  </use>
</pkgmetadata>