gentoo-overlay/app-arch/rar/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
<maintainer>
	<email>jdhore@gentoo.org</email>
	<name>Jeff Horelick</name>
</maintainer>
<maintainer>
        <email>serkan@gentoo.org</email>
        <name>Serkan Kaba</name>
        <description>Beta maintainer</description>
</maintainer>
<use>
 <flag name='all_sfx'>
	Install all SFX (Self-Extracting) files rather than just the native
	format (allows creation of Windows EXEs on Linux ELF systems)
 </flag>
</use>
</pkgmetadata>