gentoo-overlay/app-emulation/crossover-bin/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
<maintainer type="person">
	<email>pacho@gentoo.org</email>
	<name>Pacho Ramos</name>
</maintainer>
	<use>
		<flag name="capi">Enable ISDN support via CAPI</flag>
		<flag name="osmesa">Add support for OpenGL in bitmaps using libOSMesa</flag>
		<flag name="opencl">Enable OpenCL support</flag>
		<flag name="pcap">Support packet capture software (e.g. wireshark)</flag>
		<flag name="vulkan">Enable Vulkan drivers</flag>
	</use>
</pkgmetadata>