Global USE flags

Flag Description Packages
readline 2
systemd 3
test 8

Local USE flags

app-admin

sudo-rs

Flag Description
pam
su Install the <c>su</c> implementation
system-names Install as <c>sudo</c>, <c>visudo</c>, and <c>su</c> instead of names suffixed with <c>-rs</c>

dev-cpp

glaze

Flag Description
examples Build examples without installing them
fuzzing Build fuzzers without installing them

stduuid

Flag Description
system-uuid Enable UUID generation through the system libuuid implementation

dev-debug

stratoshark

Flag Description
modules Install the matching scap kernel module for local system-call capture

dev-lang

bun-bin

Flag Description
cpu_flags_x86_avx2

lua

Flag Description
deprecated Enable deprecated compatibility functions

dev-python

pipx

Flag Description
uv Install <pkg>dev-python/uv</pkg> as an alternative package backend

dev-vcs

gcli

Flag Description
libedit
lowdown Render Markdown using <pkg>app-text/lowdown</pkg>

gui-libs

xdg-desktop-portal-hyprland

Flag Description
elogind Enable support for rootless session via elogind

gui-wm

hyprland

Flag Description
X Enables XWayland support
dbus-session Modify the .desktop file to ensure dbus-run-session on non-systemd system; harmless for systemd user
guiutils Install Hyprland GUI utility apps
hyprpm Plugin manager
uwsm Enables support for Universal Wayland Session Manager

media-video

curd

Flag Description
rofi Install runtime dependencies for the graphical selection menu

net-analyzer

wireshark

Flag Description
androiddump
bcg729
brotli
capinfos
captype
ciscodump
dftest
doc
dpauxmon
dumpcap
editcap
gui
http2
http3
ilbc
kerberos
lua
lz4
maxminddb
mergecap
minizip
netlink
opus
pcap
pkcs11
plugins
randpkt
randpktdump
reordercap
sbc
sdjournal
selinux
sharkd
smi
snappy
spandsp
sshdump
ssl
stratoshark Build the Stratoshark graphical and command-line analyzers and capture helpers
text2pcap
tshark
udpdump
wifi
xxhash
zlib
zstd

net-firewall

foomuuri

Flag Description
dbus
http Enable downloading IP lists over HTTP
prometheus Install the Prometheus metrics exporter
xml

sys-apps

whatcable

Flag Description
debug
plasma Build and install the Plasma 6 widget