gentoo-overlay/net-analyzer/rrdcollect/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
<herd>netmon</herd>
<use>
<flag name="exec">Enable exec:/// support</flag>
<flag name="librrd">Use the librrd library from <pkg>net-analyzer/rrdtool</pkg></flag>
</use>
</pkgmetadata>