net-libs/libsoup/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
	<herd>gnome</herd>
	<use>
		<flag name="samba">Use <pkg>net-fs/samba</pkg> for NTLM Single
			Sign-On</flag>
	</use>
</pkgmetadata>