Global USE flags

Flag Description Packages
avahi 2
nagelfar Use <pkg>dev-tcltk/nagelfar</pkg>as syntax checker 2

Local USE flags

app-misc

lxi-tools

Flag Description
qt5

app-shells

grmlzshrc

Flag Description
man Generate and install manpages

dev-libs

liblxi

Flag Description
static-libs

dev-vcs

gitolite

Flag Description
acct User and group management via acct-*/git packages
selinux
tools Install tools to e.g. convert a Gitosis config to gitolite or one to check if your setup is gitolite &gt;= 3.x compatible

media-fonts

ohsnap

Flag Description
otf Install Open Type Font (OTF) (required for HarfBuzz backend)
pcf Install Portable Compiled Font (PCF) (required for X11)

media-gfx

mtpaint

Flag Description
gif
jpeg
nls
threads
tiff

media-sound

moc

Flag Description
aac
alsa
cache Enable tags caching support
curl
debug
ffmpeg
flac
jack
libsamplerate
mad
magic
modplug
musepack
oss
pulseaudio
sid Build with SID (Commodore 64 Audio) support
sndfile
sndio Enable support for the <pkg>media-sound/sndio</pkg> backend
speex
timidity
tremor Build vorbis support using an integer implementation of the vorbis library (<pkg>media-libs/tremor</pkg>)
unicode
vorbis
wavpack

sci-electronics

icglue

Flag Description
system-tcllib Use bundled tcllib files

yosys

Flag Description
abc Use berkeley-abc (as yosys-abc) for technology mapping
clang Use Clang compiler instead of GCC
libedit
libffi
python
readline

sys-cluster

env-modules

Flag Description
doc
example-modulefiles Install example module files
vim-syntax

x11-plugins

tbsync

Flag Description
dav Install systemwide provider add-on for CalDAV &amp; CardDAV synchronization capabilities to TbSync
eas Install systemwide provider add-on for Exchange ActiveSync (EAS v2.5 &amp; v14.0) synchronization capabilities to TbSync