gentoo-overlay/media-libs/gmmlib/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
  <maintainer type="project">
    <email>media-video@gentoo.org</email>
  </maintainer>
  <maintainer type="person" proxied="yes">
    <email>k2k@narod.ru</email>
    <name>Evgeny Grin</name>
  </maintainer>
  <use>
    <flag name="custom-cflags">Do not override user CFLAGS like -march, -msse and similar with lib defaults. Not tested by upstream.</flag>
  </use>
</pkgmetadata>