metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
<maintainer type="project">
	<email>mozilla@gentoo.org</email>
	<name>Gentoo Mozilla Team</name>
</maintainer>
<use>
	<flag name="bindist">Disable official Thunderbird branding (icons, name) which 
		are not binary-redistributable according to upstream.</flag>
	<flag name="crypt"> Enable encryption support with enigmail</flag>
	<flag name="mozdom">Enable Mozilla's DOM inspector</flag>
	<flag name="lightning">Enable app-global calendar support
		(note 38.0 and above bundles calendar support when this flag is off)</flag>
	<flag name="custom-optimization">Build with user-specified compiler optimizations
		(-Os, -O0, -O1, -O2, -O3) from CFLAGS (unsupported)</flag>
	<flag name="gtk2">Use the cairo-gtk2 rendering engine instead of the default cairo-gtk3</flag>
	<flag name="jemalloc">Enable or disable jemalloc</flag>
	<flag name="jemalloc3">Enable or disable jemalloc3 (forced-on when supported prior to 38.0)</flag>
	<flag name="rust">Enable support for using rust compiler  (experimental)</flag>
	<flag name="system-cairo">Use the system-wide <pkg>x11-libs/cairo</pkg>
		instead of bundled.</flag>
	<flag name="system-harfbuzz">Use the system-wide <pkg>media-libs/harfbuzz</pkg>
		and <pkg>media-gfx/graphite2</pkg> instead of bundled.</flag>
	<flag name="system-icu">Use the system-wide <pkg>dev-libs/icu</pkg>
		instead of bundled.</flag>
	<flag name="system-jpeg">Use the system-wide <pkg>media-libs/libjpeg-turbo</pkg>
		instead of bundled.</flag>
	<flag name="system-libevent">Use the system-wide <pkg>dev-libs/libevent</pkg>
		instead of bundled.</flag>
	<flag name="system-libvpx">Use the system-wide <pkg>media-libs/libvpx</pkg>
		instead of bundled.</flag>
	<flag name="system-sqlite">Use the system-wide <pkg>dev-db/sqlite</pkg>
		installation with secure-delete enabled</flag>
	<flag name="minimal">Remove the software development kit and headers</flag>
</use>
</pkgmetadata>