Global USE flags

Flag Description Packages
X Build the XCB platform plugin and enable X11 integration 3
doc 2
qml Enable QML support in lupdate 2
static-libs 4
test 5

Category USE flags

dev-qt

Flag Description Packages
dbus 2
gles2-only 2
png 2

Local USE flags

app-admin

keepassxc

Flag Description
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

dev-python

cython

Flag Description
emacs

django

Flag Description
sqlite

flask-wtf

Flag Description
examples

pydantic

Flag Description
native-extensions Compiles native "C" extensions.

dev-qt

qtcore

Flag Description
icu
old-kernel Disable syscalls not available on Linux kernels older than 4.11

qtgui

Flag Description
accessibility
egl
eglfs Build the EGL Full Screen/Single Surface platform plugin
evdev Enable support for input devices via evdev
ibus Build the IBus input method plugin
jpeg
libinput Enable support for input devices via <pkg>dev-libs/libinput</pkg>
linuxfb Enable Linux framebuffer support for embedded devices
tslib Enable support for touchscreen devices via <pkg>x11-libs/tslib</pkg>
tuio Build plugin to receive touch events over the TUIO protocol
udev
vnc
vulkan
wayland Provide <pkg>dev-qt/qtwayland</pkg> to ensure Qt applications can be run as Wayland clients

qtnetwork

Flag Description
gssapi Enable support for GSSAPI (<pkg>virtual/krb5</pkg>)
libproxy Use <pkg>net-libs/libproxy</pkg> for automatic HTTP/SOCKS proxy configuration
sctp
ssl

qtwidgets

Flag Description
gtk Build the GTK platform theme plugin

games-strategy

hedgewars

Flag Description
ffmpeg Enable video recording feature
pas2c Translate Pascal sources to C and build with clang
server Enable local server

x11-misc

albert

Flag Description
debug Enable debugging informations

clipit

Flag Description
appindicator Enable support for appindicator
gtk3 Enable GTK+ 3 support
nls

x11-plugins

syncthingtray

Flag Description
kde
systemd
webengine Use dev-qt/qtwebengine as HTML rendering engine