gentoo-overlay/dev-lang/mono/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
<herd>dotnet</herd>
<use>
	<flag name='pax_kernel'>Enable if the user plans to run the package under a pax enabled hardened kernel</flag>
	<flag name='xen'>Make mono generate code that is considerably faster on xen VMs but slightly slower on for normal systems.</flag>
</use>
</pkgmetadata>