Global USE flags

Flag	Description	Packages
debug		5
doc		4
selinux		4
static-libs		2
test		3

Category USE flags

virtual

Flag	Description	Packages
systemd		3

Local USE flags

app-admin

keepassxc

Flag	Description
X
autotype	Add support to autotype the passwords into other applications
browser	Enable communication with web browser plugins
keeshare	Enable KeeShare sharing integration
keyring	Enable support for use as the the system keyring
network	Enable network support (e.g. for downloading favicons)
ssh-agent	Use KeePassXC to unlock SSH keys
yubikey	Enable database unlocking via hardware keys supporting YubiKey-style HMAC-SHA1 protocol

app-dicts

dicpoli

Flag	Description
dict	dictionary data for dict
l10n_de
l10n_en
l10n_es
l10n_fr
l10n_it
l10n_ro
stardict	dictionary data for stardict

games-engines

mcarpet2

Flag	Description
hd_modpack	optional HD modpack with improved textures and sounds
imgui	enable Dear ImGui interface inside game's framebuffer

vcmi

Flag	Description
editor	Build level editor.
erm	Build ERM scripting support.
launcher	Build with launcher support.
lua
nullkiller-ai	Build Nullkiller AI.
translations	Enable translations supported languages, more here: https://github.com/vcmi/vcmi/blob/develop/docs/translators/Translations.md

media-libs

libsquish

Flag	Description
openmp

net-firewall

shorewall

Flag	Description
init	Adds the capability to place the firewall in a safe state prior to bringing up the network interfaces
ipv4	Installs everything needed to create a full IPv4 firewall
ipv6	Adds the capability to create a full IPv6 firewall (requires <pkg>net-firewall/shorewall</pkg> ipv4 USE flag)
lite4	Installs everything needed to just *run* an IPv4 compiled firewall script created with <pkg>net-firewall/shorewall</pkg> ipv4 USE flag
lite6	Installs everything needed to just *run* an IPv6 compiled firewall script created with <pkg>net-firewall/shorewall</pkg> ipv6 USE flag

net-wireless

gr-sdrplay3

Flag	Description
python

sys-apps

linux-misc-apps

Flag	Description
usbip	Include USB/IP binaries to replace <pkg>net-misc/usbip</pkg>

sys-fs

eudev

Flag	Description
introspection
kmod	enable module loading through libkmod
rule-generator	install legacy rule generator rules and support scripts - note that the functionality within was dropped from sys-fs/udev as it is not stable in all cases; use at your own risk
split-usr

sys-process

daemontools-scripts

Flag	Description
static
withsamplescripts	add sample init scripts

virtual

libudev

Flag	Description
eudev	Depend on <pkg>sys-fs/eudev</pkg>
sticky-tags	Enable API support for sticky tags

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