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root
Description: C++ data analysis framework and interpreter from CERN
Homepage: https://root.cern
Location: Portage
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USE flags
aqua - Include support for the Mac OS X Aqua (Carbon/Cocoa) GUI
asimage - Enable support for media-libs/libafterimage
c++14 - Build using the C++14 standard
c++17 - Build using the C++17 standard
cuda - Enable support for nVidia CUDA
cudnn - Enable support for nVidia cuDNN library
davix - Enable support for DAVIX Data Management Client (https://cern.ch/davix)
debug - Enable extra debug codepaths, like asserts and extra output. If you want to get meaningful backtraces see https://wiki.gentoo.org/wiki/Project:Quality_Assurance/Backtraces
emacs - Add support for GNU Emacs
examples - Install examples, usually source code
fftw - Use FFTW library for computing Fourier transforms
fits - Enable support for images and data from FITS files with sci-libs/cfitsio
fortran - Compile included Fortran programs
gdml - Enable GDML writer and reader
graphviz - Add support for the Graphviz library
gsl - Use the GNU scientific library for calculations
http - Enable http server support including but not limited to fastcgi support
jupyter - Install dependencies to enable ROOT's C++ kernel in Jupyter notebooks
libcxx - Build ROOT against sys-libs/libcxx
minuit - Build ROOT's internal versions of minuit (fortran) and minuit2 (C++)
mpi - Add MPI (Message Passing Interface) layer to the apps that support it
mysql - Add mySQL Database support
odbc - Add ODBC Support (Open DataBase Connectivity)
opengl - Add support for OpenGL (3D graphics)
oracle - Enable Oracle Database support
postgres - Add support for the postgresql database
pythia6 - Build the interface for sci-physics/pythia version 6.x
pythia8 - Build the interface for sci-physics/pythia version 8.x
python - Add optional support/bindings for the Python language
python_single_target_python3_10 - Build for Python 3.10 only
python_single_target_python3_11 - Build for Python 3.11 only
python_single_target_python3_9 - Build for Python 3.9 only
qt5 - Add support for the Qt 5 application and UI framework
R - Enable support for dev-lang/R
roofit - Build RooFit function fitting package
root7 - Build experimental features to be released with ROOT 7
shadow - Enable shadow authentication in rootd and proofd
sqlite - Add support for sqlite - embedded sql database
ssl - Add support for SSL/TLS connections (Secure Socket Layer / Transport Layer Security)
tbb - Enable implicit multi-threading (IMT) with dev-cpp/tbb
test - Enable dependencies and/or preparations necessary to run tests (usually controlled by FEATURES=test but can be toggled independently)
tmva - Built TMVA (ROOT's multi-variate analysis toolkit for machine learning)
unuran - Enable support for sci-mathematics/unuran
uring - Enable support for sys-libs/liburing in RNTuple
vc - Enable support for dev-libs/vc with VecCore
X - Add support for X11
xml - Add support for XML files
xrootd - Build the interface for net-libs/xrootd
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