gentoo-overlay/media-sound/asunder/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
	<herd>sound</herd>
<use>
  <flag name='mac'>Support for creation of Monkey's Audio files (APE)</flag>
  <flag name='opus'>Support for creation of Opus files</flag>
</use>
</pkgmetadata>