Global USE flags

Flag	Description	Packages
(		2
)		2
X		4
cache	use offline cache for opencl binaries in examples and tests	2
cpu_flags_x86_avx2		2
cpu_flags_x86_sse2		5
cpu_flags_x86_sse4_1		3
cuda	Enable CUDA support	8
debug		8
dicom	Adds limited read support for the DICOM imaging format.	2
doc		20
examples		19
gui	Build graphical user interface	3
java	Build the Java bindings	2
mpi		8
opengl		3
openmp		10
python		4
qt5	Add support for dev-python/pyqt5	2
static		2
static-libs	Build static library	25
test		37
threads	build thread safe examples and tests	4
vtk	Build <pkg>sci-libs/vtk</pkg> bridge	3

Category USE flags

sci-libs

Flag	Description	Packages
client	Build a command line clFFT client program.	2

sci-physics

Flag	Description	Packages
collier	Build with collier	2
fastjet	USE system FASTJET	2
hepmc2	USE system hepmc version 2	4
hepmc3	Build with hepmc version 3 support, else hepmc version2 is used	3
lhapdf	USE system LHAPDF	2
looptools	use looptools	2
mpfun90	Use <pkg>sci-libs/mpfun90</pkg>	2
pythia	Build with pythia	6
rivet	USE system rivet	2
tauola	Build with tauola	2

sys-devel

Flag	Description	Packages
esimd_emulator	enable ESIMD CPU emulation	2

Local USE flags

app-text

noweb

Flag	Description
emacs

dev-lang

berkeley_upc

Flag	Description
mpi-compat	Enable interoperability with MPI
pshm	Build UPC Runtime/GASNet with Process-SHared Memory enabled
segment-fast	Select GASNet's FAST segments (default), for the fastest remote access with a possible cost in max shared memory size
segment-large	Select GASNet's LARGE segments, for the largest possible shared memory size, at a possible cost in remote access time
single	Support running over smp loopback (no network)
sptr-packed	Use the more efficient 'packed' shared pointer representation
sptr-struct	Use the 'struct' shared pointer representation
sptr-symmetric	Enable 'symmetric' pointer variant where available (64-bit smp and shmem)
udp	Support running over UDP

dev-libs

boost-compute

Flag	Description
benchmark	build benchmark examples
bolt	build bolt examples and tests
cpp11	enable C++11 features in examples and tests
eigen	build eigen examples and tests
opencv	build opencv examples and tests
qt	build qt examples and tests
tbb	build examples and tests using tbb backend

memkind

Flag	Description
heap-manager	Allow switching allocator at runtime
secure	Build libraries with security enhancements
tls	Enable thread local storage

simclist

Flag	Description
dump	Disable building of dump and restore functionalities
hash	Allow list_hash() to work exclusively on memory locations

dev-ml

lacaml

Flag	Description
ocamlopt

dev-python

ezdxf

Flag	Description
cython	Build Cython-based C extensions
matplotlib	Add support for dev-python/matplotlib

spikeinterface

Flag	Description
extractors	support for all extractors
full	support for all optional processing features

dev-vcs

dandi-cli

Flag	Description
etelemetry	version checking to respect server schema version

datalad

Flag	Description
downloaders	Extended support for download resources
metadata	Annotated metadata support for datasets
misc	Dataset publishing support
publish	Dataset publishing support

media-gfx

brlcad

Flag	Description
benchmarks	Run benchmarks during test phase (need test option enabled)
smp

media-libs

mmg

Flag	Description
scotch	Use SCOTCH TOOL for renumbering

sci-biology

afni

Flag	Description
whirlgif	Build optional whirlgif binary

bidsschematools

Flag	Description
render	Support for schema table rendering

dcm2niix

Flag	Description
jpeg-ls	Supprt for converting DICOM images compressed with the JPEG-LS transfer syntaxes using the bundled CharLS library
jpeg2k
system-jpeg	Use the system-wide <pkg>media-libs/libjpeg-turbo</pkg> instead of bundled.

exonerate-gff3

Flag	Description
utils	Unknown

glean

Flag	Description
graphviz

imagej

Flag	Description
plugins	Install additional plugins

jellyfish

Flag	Description
cpu_flags_x86_sse

mouse-brain-templates

Flag	Description
hires	Also install high-resolution atlases.

neuroconv

Flag	Description
ecephys	Extracellular electrophysiology interfaces
icephys	Intracellular electrophysiology interfaces
ophys	Optical physiology interfaces

open-ephys-gui

Flag	Description
jack

vt

Flag	Description
pdf

zmap

Flag	Description
curl

sci-chemistry

drawxtl

Flag	Description
fltk

gamess

Flag	Description
msucc	Build Michigan State University CCT3 and CCSD3A methods. This will increase build time and memory requirements by ~10 times
neo	Enable NEO for nuclear basis support
pax-kernel	Make this package work on PAX kernels
qmmm-tinker	Enable tinker qmmm code
vb2000	Enable Valence Bond method using VB2000 code

sci-libs

aocl-libm

Flag	Description
aocc	install the library built using AOCC, else use the GCC version

arrayfire

Flag	Description
mkl	Build against static MKL.
nonfree	build.
opencl	build OpenCL backend.
trace	enable additional traces during logging.

asl

Flag	Description
matlab	Matlab support with <pkg>sci-libs/matio</pkg>

clfft

Flag	Description
callback-client	Build a command line clFFT client program that tests callback functionality.

etsf_io

Flag	Description
pic	Compile Position Independent Code

fox

Flag	Description
dom	Compile the W3C document object model module
fast	Compile with best known optimization flags
sax	Compile the streaming, validating parser based on java's Simple API for XML
wcml	Compile the module for a subset of the Chemical Markup Language
wkml	Compile the module for the creation of KML documents used by applications such as Google Earth
wxml	Compile the XML writer used to sequentially create arbitrary XML documents quickly with minimal memory requirements

libflame-amd

Flag	Description
scc	Enable code that takes advantage of the SCC multicore architecture, recommended to use supermatrix if scc is enabled.
sse3
supermatrix	Enable Ernie Chan's dependency-aware task scheduling and parallel execution system.

libmaus2

Flag	Description
cpu_flags_x86_sse4_2
cpu_flags_x86_ssse3

lwpr

Flag	Description
octave	Add <pkg>sci-mathematics/octave</pkg> support

nexus

Flag	Description
cxx
hdf4	Support the old HDF4 representation
hdf5	Support the standard representation (HDF5)
xml	Allow using the verbose XML representation of NeXus data

pg2plplot

Flag	Description
png
postscript

starparse

Flag	Description
guile

torchaudio

Flag	Description
ffmpeg
rnnt	Enable custom RNN-T loss function
rocm	Enable ROCm gpu computing support

wannier90

Flag	Description
perl

sci-mathematics

ripser

Flag	Description
progress	print progress of calculations in console
sparsehash	use google sparsehash for storage

sci-misc

elmer-fem

Flag	Description
ice	Build ElmerICE
matc	Build the Elmer matc library
mumps	Build with Mumps
post	Build ElmerPOST

praat

Flag	Description
pulseaudio

sci-physics

atompaw

Flag	Description
libxc	Enable support for libxc, an exchange-correlation potentials library
longplot	Patch the sources to plot functions all over the space considered, not just up to the matching radius plus 50 grid points. May be useless or even harmful.

cernlib

Flag	Description
free	Use free sources

cuttools

Flag	Description
dummy	Add dummy module for <pkg>sci-physics/openloops</pkg>

evtgen

Flag	Description
photos	Build with photos

feyncalc

Flag	Description
FCtraditionalFormOutput	Use TraditionalForm typesetting.

jaxodraw-bin

Flag	Description
latex

lhapdf-sets

Flag	Description
lhapdf_sets_ct10	CT10 LHAPDF grid
lhapdf_sets_ct10nnlo	CT10nnlo LHAPDF grid
lhapdf_sets_ct14lo	CT14lo LHAPDF grid
lhapdf_sets_ct14nlo	CT14nlo LHAPDF grid
lhapdf_sets_ct14qed_proton	CT14qed_proton LHAPDF grid
lhapdf_sets_cteq66	CTEQ66 LHAPDF grid
lhapdf_sets_cteq6l1	CTEQ6L1 LHAPDF grid
lhapdf_sets_luxqed_plus_pdf4lhc15_nnlo_100	lhapdf_sets_luxqed_plus_pdf4lhc15_nnlo_100 LHAPDF grid
lhapdf_sets_mrst2004qed	MRST2004qed LHAPDF grid
lhapdf_sets_mrst2007lomod	MRST2007lomod LHAPDF grid
lhapdf_sets_nnpdf23_nlo_as_0118	nnpdf23_nlo_as_0118 grid
lhapdf_sets_nnpdf23_nlo_as_0119_qed	NNPDF23_nlo_as_0119_qed LHAPDF grid
lhapdf_sets_nnpdf23_nlo_as_0119_qed_mc	NNPDF23_nlo_as_0119_qed_mc LHAPDF grid
lhapdf_sets_nnpdf23_nnlo_as_0119_qed_mc	NNPDF23_nnlo_as_0119_qed_mc LHAPDF grid
lhapdf_sets_nnpdf31_nlo_as_0118	nnpdf31_nlo_as_0118 grid
lhapdf_sets_nnpdf31_nnlo_as_0118	nnpdf31_nnlo_as_0118 grid
lhapdf_sets_nnpdf31_nnlo_as_0118_luxqed	NNPDF31_nnlo_as_0118_luxqed LHAPDF grid
lhapdf_sets_nnpdf40_nlo_as_0118	nnpdf40_nlo_as_0118 grid
lhapdf_sets_pdf4lhc15_nlo_asvar	PDF4LHC15_nlo_asvar LHAPDF grid
lhapdf_sets_pdf4lhc15_nnlo_100	PDF4LHC15_nnlo_100 LHAPDF grid

madgraph5

Flag	Description
golem95	USE system golem95
herwig	USE system herwig
madanalysis5	USE system madanalysis5
ninja	USE system ninja
samurai	USE system samurai
thepeg	USE system thepeg
yoda	USE system yoda

mc-tester

Flag	Description
hepmc	Compile <pkg>sci-physics/hepmc</pkg> interface

ninja

Flag	Description
gosam	Build gosam interface

oneloop

Flag	Description
arprec	use sci-libs/arprec
cppintf	enable cppintf
ddcpp	double use sci-libs/qd
dpkind	double precision
dpkind16	double16 precision
qdcpp	quad use sci-libs/qd
qpkind	quad precision
qpkind16	quad16 precision
tlevel	enable tlevel

openloops

Flag	Description
cuttools	Build with cuttools
extra	Build libs with extra
openloops_processes_eella-ew	Dilepton (e+e-,m+m-,nn~) plus photon production in e+e- at NLO EW and NLO QED
openloops_processes_ppajj	Photon plus two jets production
openloops_processes_pphllj-ew	Higgs plus off-shell Z/W-boson production with leptonic decays (l+l-/nn/l+n/l-n) and one jet at NLO EW.
openloops_processes_ppjj	Production of two jets
openloops_processes_ppjj-ew	Production of two jets at NLO EW including all subleading one-loop orders
openloops_processes_ppjjj	Production of three jets
openloops_processes_pplla	Off-shell Z/A/W boson and on-shell photon production with leptonic decays (l+l-/nn/l+n/l-n)
openloops_processes_pplla-ew	Off-shell Z/A/W boson and on-shell photon production with leptonic decays (l+l-/nn/l+n/l-n) at NLO EW
openloops_processes_ppllaj	Off-shell Z/A/W boson and on-shell photon production plus jet with leptonic decays (l+l-/nn/l+n/l-n)
openloops_processes_ppllajj	Off-shell Z/A boson and on-shell photon production plus two jets with leptonic decays (l+l- and nn)
openloops_processes_ppllj	Off-shell Z/A/W boson production with leptonic decays (l+l-/nn/l+n/l-n/L+L-/L+n/L-n) and zero or one jet
openloops_processes_ppllj-ew	Production of an off-shell Z/W/Photon with leptonic decays (l+l-/nn/l+n/l-n/L+L-/L+n/L-n) and zero or one jet at NLO EW.
openloops_processes_ppllj2	Loop-squared off-shell Z/A boson production with leptonic decay (l+l- and nn) plus zero or one jet (nf=5 and nf=6 available)
openloops_processes_pplljj	Off-shell Z/A boson plus two jets production with leptonic decays (l+l- and nn)
openloops_processes_pplljj-ew	Production of an off-shell Z-boson/Photon with leptonic decays (l+l-) and two jets at NLO EW (including all subleading one-loop orders).
openloops_processes_pplnj-ckm	Off-shell W+/W- boson production with leptonic decay and zero or one jet with non-diagonal CKM
openloops_processes_pplnjj-ckm	Off-shell W+/W- boson production with leptonic decay with non-diagonal CKM

qcl

Flag	Description
plotutils
readline

recola2

Flag	Description
SM	Use SM model

samurai

Flag	Description
qcdloop	Build with <pkg>sci-physics/qcdloop</pkg>

sherpa

Flag	Description
analysis	analysis support
gzip
lhole	lhole support
openloops	Openloops support
pythia6	Build with Pythia6
pythia8	Build with Pythia8
root	Build with Root
ufo	UFO python interface

tauola

Flag	Description
tau-spinner	Compile with TauSpinner library

sys-cluster

modules

Flag	Description
man-install	install man files in global location
new-features	enable all new features
shell-setup	install shell initialization and completion files

sys-devel

DPC++

Flag	Description
"${ALL_LLVM_TARGETS[@]/llvm_targets_/llvm_targets_}"
"(
)"
hip	use the HIP backend
llvm_targets_AMDGPU
llvm_targets_NVPTX

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