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# This file is deprecated as per GLEP 56 in favor of metadata.xml. Please add
# your descriptions to your package's metadata.xml ONLY.
# * generated automatically using egencache *

app-doc/root-docs:api - Generate html API documentation
app-doc/root-docs:http - Build HttpServer documentation
app-doc/root-docs:math - Provide all math related documentation
app-doc/root-docs:metric - Default to A4 paper size and metric measurement. Letter will be used otherwise
dev-cpp/eigen:adolc - Enable automatic differentiation using sci-libs/adolc
dev-cpp/eigen:metis - Enable matrix partitioning using sci-libs/metis
dev-cpp/eigen:mkl - Use propertary intel blas/lapack implementation through sci-libs/mkl
dev-cpp/eigen:pastix - Enable large scale direct solver with using sci-libs/pastix
dev-cpp/eigen:sparse - Enable use for extra sparse matrix with sci-libs/umfpack, sci-libs/cholmod, sci-libs/superlu and dev-cpp/sparsehash
dev-java/hdf-java:hdf - Add support for the Hierarchical Data Format v.4 (sci-libs/hdf)
dev-java/hdf-java:hdfview - Build a GUI viewer for all files supported in dev-java/hdf-java
dev-java/jogl:cg - Enable NVidia Cg binding.
dev-lang/berkeley_upc:mpi-compat - Enable interoperability with MPI
dev-lang/berkeley_upc:pshm - Build UPC Runtime/GASNet with Process-SHared Memory enabled
dev-lang/berkeley_upc:segment-fast - Select GASNet's FAST segments (default), for the fastest remote access with a possible cost in max shared memory size
dev-lang/berkeley_upc:segment-large - Select GASNet's LARGE segments, for the largest possible shared memory size, at a possible cost in remote access time
dev-lang/berkeley_upc:single - Support running over smp loopback (no network)
dev-lang/berkeley_upc:sptr-packed - Use the more efficient 'packed' shared pointer representation
dev-lang/berkeley_upc:sptr-struct - Use the 'struct' shared pointer representation
dev-lang/berkeley_upc:sptr-symmetric - Enable 'symmetric' pointer variant where available (64-bit smp and shmem)
dev-lang/berkeley_upc:udp - Support running over UDP
dev-lang/conceptual:gui - Build the Java base graphical interface
dev-lang/julia:int64 - Build with 64 bits integer blas and lapack (needs sci-libs/openblas and sci-libs/lapack-reference)
dev-lang/path64:assembler - Build PathAS assembler
dev-lang/path64:debugger - Build PathDB debugger
dev-lang/path64:native - Use EKOPath/Path64 for bootstraping
dev-lang/path64:valgrind - Support compiler debugging with dev-util/valgrind
dev-lang/pgi:acml - Install AMD's core math library.
dev-lang/pgi:cuda - Install PGI's CUDA components (e.g. for OpenACC)
dev-lang/pgi:java - Install a PGI-tuned JRE.
dev-libs/libflatarray:cuda - Enables plugins for NVIDIA GPUs (e.g. CUDAAllocator)
dev-ml/mlgmpidl:mpfr - Add support for dev-libs/mpfr
dev-ml/zarith:mpir - Use sci-libs/mpir for arbitrary precision integer arithmetic
dev-python/ffnet:matplotlib - Use matplotlib for drawing
dev-python/pyhdf:szip - Allow to use sci-libs/szip for SZIP compression method in SDsetcompress()
dev-python/ufl:scipy - Adds support for evaluating Bessel functions using dev-python/scipy
dev-tex/pythontex:highlighting - PLEASE FIX MY DESCRIPTION
dev-util/VampirTrace:cuda - Enable tracing of CUDA calls and GPU kernels.
dev-util/amdapp:examples - Build the OpenCL example programs
dev-util/nvidia-cuda-gdk:healthmon - Install nvidia-healthmon.
dev-util/nvidia-cuda-gdk:nvml - Install the NVIDIA Managment Library.
dev-util/nvidia-cuda-gdk:nvvs - Install the NVIDIA Validation Suite.
media-gfx/brlcad:benchmarks - Run benchmarks during test phase (need test option enabled)
media-gfx/librecad:3d - Require all 2D coordinates stored as 3D
media-gfx/librecad:tools - Build additional tool programs: tff2lff
sci-astronomy/astrometry:extra - Add extra tools, specifically for plots
sci-astronomy/mosstack:opencl - Enables OpenCL support and pulls in pyopencl. This makes some operations much faster but requires specific hardware and drivers.
sci-astronomy/mosstack:qt4 - Pulls in PyQt4. Program works on command line interface without it but for GUI the library is required.
sci-astronomy/psfex:plplot - Build with sci-libs/plplot to allow diagnostic plots during processing
sci-astronomy/scamp:plplot - Build with sci-libs/plplot to allow diagnostic plots during processing
sci-astronomy/sextractor:modelfit - Enable profile model fitting, needs sci-libs/atlas and sci-libs/fftw
sci-astronomy/zpeg:gdl - Install GDL/IDL plotting routines
sci-biology/bru2nii:gui - Build graphical user interface
sci-biology/discrover:cairo - Use Cairo for sequence logo plotting capabilities
sci-biology/discrover:dreme - Enable usage of DREME from the MEME package for seeding
sci-biology/discrover:lto - Compile with link-time optimization (LTO)
sci-biology/discrover:misc_scripts - Install miscellaneous scripts
sci-biology/discrover:rmathlib - Link to the standalone Rmathlib for statistical routines
sci-biology/estscan:icc - Undocumented USE
sci-biology/estscan:ifc - Undocumented USE
sci-biology/exonerate-gff3:utils - Unknown
sci-biology/hmmer:pvm - Add support for parallel virtual machine (sys-cluster/pvm)
sci-biology/ncbi-blast+:boost - Undocumented USE
sci-biology/ncbi-blast+:cppunit - Undocumented USE
sci-biology/ncbi-blast+:freetype - Undocumented USE
sci-biology/ncbi-blast+:mesa - Undocumented USE
sci-biology/ncbi-blast+:muparser - Undocumented USE
sci-biology/ncbi-blast+:sablotron - Undocumented USE
sci-biology/ncbi-blast+:sqlite3 - Add support for dev-db/sqlite:3
sci-biology/ncbi-blast+:xalan - Undocumented USE
sci-biology/ncbi-blast+:xerces - Undocumented USE
sci-biology/ncbi-blast+:xslt - Undocumented USE
sci-biology/ncbi-tools++:boost - Undocumented USE
sci-biology/ncbi-tools++:cppunit - Undocumented USE
sci-biology/ncbi-tools++:freetype - Undocumented USE
sci-biology/ncbi-tools++:mesa - Undocumented USE
sci-biology/ncbi-tools++:muparser - Undocumented USE
sci-biology/ncbi-tools++:sablotron - Undocumented USE
sci-biology/ncbi-tools++:sqlite3 - Add support for dev-db/sqlite:3
sci-biology/ncbi-tools++:xalan - Undocumented USE
sci-biology/ncbi-tools++:xerces - Undocumented USE
sci-biology/ncbi-tools++:xslt - Undocumented USE
sci-biology/sga:jemalloc - Use dev-libs/jemalloc
sci-chemistry/avogadro2:rpc - Enable RPC server
sci-chemistry/ball:cuda - Include cuda support
sci-chemistry/ball:sql - Include SQL database support
sci-chemistry/ball:webkit - Uses dev-qt/qt-webkit for drawing
sci-chemistry/gamess:neo - Enable NEO for nuclear basis support
sci-chemistry/gamess:pax_kernel - Make this package work on PAX kernels
sci-chemistry/gamess:qmmm-tinker - Enable tinker qmmm code
sci-chemistry/gnome-chemistry-utils:gnumeric - Build pluging for gnumeric
sci-chemistry/gromacs:boost - Enable external boost library
sci-chemistry/gromacs:cuda - Enable cuda non-bonded kernels
sci-chemistry/gromacs:double-precision - More precise calculations at the expense of speed
sci-chemistry/gromacs:make-symlinks - Create symbolic links for pre-5.0 binary names
sci-chemistry/gromacs:mkl - Use sci-libs/mkl for fft, blas, lapack routines
sci-chemistry/gromacs:offensive - Enable gromacs partly offensive quotes
sci-chemistry/gromacs:single-precision - Single precision version of gromacs (default)
sci-chemistry/gromacs:tng - Enable new trajectory format - tng
sci-chemistry/mdsctk:R - Install dev-lang/R scripts as well
sci-chemistry/nwchem:blas - Use external BLAS library instead of the internal routines
sci-chemistry/nwchem:cuda - Enable CUDA GPU support for the Tensor Contraction Engine generated methods (CI, MBPT, CC)
sci-chemistry/nwchem:int64 - Use 64 bits integers
sci-chemistry/nwchem:lapack - Use external LAPACK library instead of the internal routines
sci-chemistry/nwchem:mrcc - Compile the routines for Multi Reference Coupled Clusters theory
sci-chemistry/nwchem:nwchem-tests - Install qa tests data
sci-chemistry/nwchem:scalapack - Use external SCALAPACK library
sci-chemistry/openbabel:doc - Install API dicumentation.
sci-chemistry/openbabel:java - Install Java bindings.
sci-chemistry/openbabel:openmp - Enable parallelization using OpenMP.
sci-chemistry/openbabel:perl - Install Perl bindings.
sci-chemistry/openbabel:python - Install Python bindings and PyBel.
sci-chemistry/openbabel:ruby - Install Ruby bindings.
sci-chemistry/openbabel:wxwidgets - Build Open Babel GUI.
sci-chemistry/pymol:web - Install Pymodule needed for web app support
sci-chemistry/rosetta:boinc - compile rosetta as a rosetta@home client
sci-chemistry/rosetta:boost - compile rosetta with boost supported code
sci-chemistry/rosetta:float - Build with floats rather than doubles
sci-chemistry/rosetta:lange - Apply patches from www.csrosetta.org
sci-chemistry/shiftx2:debug - Enables debug output in the shiftx2 java part
sci-chemistry/votca-csg:extras - Pull in extra applications from sci-chemistry/votca-csg-apps
sci-chemistry/votca-csg:gromacs - Add support for gromacs file formats through sci-chemistry/gromacs
sci-electronics/player:boost - Automatically generated description for boost
sci-electronics/player:festival - Automatically generated description for festival
sci-electronics/player:openssl - Automatically generated description for openssl
sci-electronics/player:sphinx2 - Automatically generated description for sphinx2
sci-geosciences/qgis:grass - Add support for sci-geosciences/grass
sci-libs/acml:gfortran - Fetch and install acml compiled with GNU FORTRAN compiler
sci-libs/acml:ifort - Fetch and install acml compiled with the Intel FORTRAN compiler
sci-libs/acml:int64 - Install the 64 bits integer library
sci-libs/acml:open64 - Fetch and install acml compiled with the Open64 FORTRAN Compiler
sci-libs/acml:pgi - Fetch and install acml compiled with the Portland Group FORTRAN compiler
sci-libs/armadillo:arpack - Link with sci-libs/arpack libraries for eigen decomposition
sci-libs/armadillo:atlas - Link with sci-libs/atlas libraries for cblas and clapack
sci-libs/armadillo:mkl - Use matrix allocation from the Intel MKL sci-libs/mkl
sci-libs/armadillo:superlu - Use SuperLU for sparse linear equation solving sci-libs/superlu
sci-libs/armadillo:tbb - Use matrix allocation from the Threads Building Blocks dev-cpp/tbb
sci-libs/arrayfire:cpu - Build CPU backend.
sci-libs/arrayfire:cuda - Build CUDA backend.
sci-libs/arrayfire:graphics - Build with Forge graphics.
sci-libs/arrayfire:nonfree - Build ArrayFire nonfree algorithms.
sci-libs/arrayfire:opencl - Build OpenCL backend.
sci-libs/arrayfire:unified - Build Backend-Independent API.
sci-libs/asl:matio - Matlab support with sci-libs/matio
sci-libs/atlas:deprecated - Build deprecated routines
sci-libs/atlas:generic - Build atlas assuming a fairly generic architecture (sse2 for x86, core2 for amd64)
sci-libs/atlas:ifko - Use iFKO to improve ATLAS performance (ATTENTION!!! Increases builtime enormously)
sci-libs/bigdft-abi:cuda - Enable support for nVidia CUDA
sci-libs/bigdft-abi:etsf_io - Enable support for reading and writing the European Theoretical Spectroscopy facility (ETSF) file format
sci-libs/bigdft-abi:glib - Compile with GLib Object System support
sci-libs/bigdft-abi:opencl - Enable support for OpenCL GPU acceleration
sci-libs/bigdft-abi:scalapack - Use ScaLAPACK, a subset of LAPACK routines redesigned for heterogenous computing
sci-libs/blas-reference:int64 - Build the 64 bits integer library
sci-libs/calculix-ccx:arpack - Add sparse eigen value support via sci-libs/arpack
sci-libs/cblas-reference:int64 - Build the 64 bits integer library
sci-libs/clblas:client - Build a command line clBLAS client program.
sci-libs/clblas:ktest - A command line tool for testing single clBLAS kernel.
sci-libs/clblas:performance - Copy performance scripts that can measure and graph performance.
sci-libs/clfft:callback_client - Build a command line clFFT client program that tests callback functionality.
sci-libs/clfft:client - Build a command line clFFT client program.
sci-libs/clrng:client - Build a command line clRNG client program.
sci-libs/dealii:arpack - Adds support for ARPACK (sci-libs/arpack)
sci-libs/dealii:c++11 - Compile the library with -std=c++11
sci-libs/dealii:debug - Build an additional debug library with extra debug codepaths, like asserts and extra output. If you want to get meaningful backtraces see <http://www.gentoo.org/proj/en/qa/backtraces.xml>
sci-libs/dealii:mesh_converter - Build and install the mesh_converter executable
sci-libs/dealii:metis - Add support for metis (sci-libs/metis)
sci-libs/dealii:mumps - Add support for mumps (sci-libs/mumps)
sci-libs/dealii:muparser - Add support for muparser (dev-cpp/muParser)
sci-libs/dealii:opencascade - Add support for opencascade (sci-libs/opencascade)
sci-libs/dealii:p4est - Add support for p4est (sci-mathematics/p4est)
sci-libs/dealii:parameter_gui - Build and install the parameter_gui executable
sci-libs/dealii:petsc - Add support for petsc (sci-libs/petsc)
sci-libs/dealii:sparse - Add support for suitesparse (sci-libs/suitesparse)
sci-libs/dealii:tbb - Add threading support with the help of the tbb library (dev-cpp/tbb)
sci-libs/dealii:trilinos - Add support for trilinos (sci-libs/trilinos)
sci-libs/etsf_io:pic - Compile Position Independent Code
sci-libs/factory:singular - Enable support for sci-mathematics/singular
sci-libs/fftw:quad - Build quadruple precision lib
sci-libs/fftw:zbus - Adds support for ZBus cycle-counter of mips
sci-libs/fox:dom - Compile the W3C document object model module
sci-libs/fox:fast - Compile with best known optimization flags
sci-libs/fox:sax - Compile the streaming, validating parser based on java's Simple API for XML
sci-libs/fox:wcml - Compile the module for a subset of the Chemical Markup Language
sci-libs/fox:wkml - Compile the module for the creation of KML documents used by applications such as Google Earth
sci-libs/fox:wxml - Compile the XML writer used to sequentially create arbitrary XML documents quickly with minimal memory requirements
sci-libs/gmsh:cgns - Enables cgns output support
sci-libs/gmsh:chaco - Enables chaco partitioner support
sci-libs/gmsh:med - Enables med support
sci-libs/gmsh:metis - Enables metis support
sci-libs/gmsh:netgen - Enable 3D Frontal triangulation using netgen lib
sci-libs/gmsh:opencascade - Enable OpenCASCADE support
sci-libs/gmsh:petsc - Enable sci-mathematics/petsc support
sci-libs/gmsh:taucs - Enable sci-libs/taucs support
sci-libs/gmsh:tetgen - Enable 3D delauny triangulation using tetgen lib
sci-libs/gotoblas2:incblas - Build the CBLAS interface
sci-libs/gotoblas2:int64 - Build the 64 bits integer library
sci-libs/gsl:cblas-external - Link gsl with external cblas provided by (virtual/cblas) instead of shipped internal version
sci-libs/itk:itkv3compat - Enable compatibility with ITK version 3
sci-libs/itk:review - Enable compilation of methods under review
sci-libs/itk:vtkglue - PLEASE FIX MY DESCRIPTION
sci-libs/lapack-reference:deprecated - Build deprecated routines
sci-libs/lapack-reference:int64 - Build the 64 bits integer library
sci-libs/lapack-reference:xblas - Build LAPACK with extra precision (needs sci-libs/xblas)
sci-libs/lapacke-reference:tmg - Build LAPACKE with a Test Matrix Generator library
sci-libs/lapacke-reference:xblas - Build LAPACKE with extra precision (needs sci-libs/xblas)
sci-libs/libfac:singular - Automatically generated description for singular
sci-libs/libgeodecomp:cuda - Enables plugins for NVIDIA GPUs (e.g. CUDASimulator and CUDAStepper)
sci-libs/libgeodecomp:hpx - Activates the HPX backend as an alternative to the usual MPI backends.
sci-libs/libgeodecomp:opencl - Builds those plugins which can offload to OpenCL devices.
sci-libs/libgeodecomp:opencv - Some input components can read from cameras etc. via OpenCV
sci-libs/libgeodecomp:qt4 - Adds the QTWidgetWriter, which allows in situ visualization of a running simulation.
sci-libs/libgeodecomp:scotch - Optinally use Scotch for domain decomposition.
sci-libs/libgeodecomp:visit - Add in situ visualization for big simulations via VisIt.
sci-libs/libsc:romio - Build with support for the ROMIO MPI-IO component
sci-libs/lwpr:octave - Add sci-mathematics/octave support
sci-libs/nexus:cbf - Support for Crystallographic Binary Format files with sci-libs/cbflib
sci-libs/nexus:doc - Generate library documentation with app-doc/doxygen
sci-libs/nexus:fortran - Build the Fortran bindings
sci-libs/nexus:guile - Build the Scheme bindings
sci-libs/nexus:java - Build the Java bindings
sci-libs/nexus:python - Build the Python bindings
sci-libs/nexus:swig - Generate bindings with dev-lang/swig
sci-libs/nexus:tcl - Build the TCL bindings
sci-libs/nexus:xml - Allow using the verbose XML representation of NeXus data
sci-libs/nibabel:dicom - Adds limited read support for the DICOM imaging format.
sci-libs/oasa:cairo - Add support for Cairo graphics library using dev-python/pycairo
sci-libs/openblas:dynamic - Build dynamic architecture detection at run time (for multi targets)
sci-libs/openblas:int64 - Build the 64 bits integer library
sci-libs/p4est:romio - Build with support for the ROMIO MPI-IO component
sci-libs/p4est:vtk-binary - Enable binary vtk output. If disabled vtk files will be written in ASCII text format.
sci-libs/pagmo:kepler - Automatically generated description for kepler
sci-libs/pagmo:nlopt - Automatically generated description for nlopt
sci-libs/parmetis:double-precision - Floating-point operation done as double precision
sci-libs/parmetis:int64 - Build the 64 bits integer library (needed for > 2^31 vertices)
sci-libs/pastix:int64 - Build the 64 bits integer library
sci-libs/pastix:starpu - Build and link with dev-libs/starpu
sci-libs/scikits_image:freeimage - Enable support for image i/o via media-libs/freeimage
sci-libs/scikits_image:pyamg - Enable support for algebraic solvers via dev-python/pyamg
sci-libs/symengine:boost - Add support for boost (dev-libs/boost)
sci-libs/trilinos:adolc - Add support for adolc (sci-libs/adolc)
sci-libs/trilinos:arprec - Add support for arprec (sci-libs/arprec)
sci-libs/trilinos:boost - Add support for boost (dev-libs/boost)
sci-libs/trilinos:clp - Add support for clp (sci-libs/coinor-clp)
sci-libs/trilinos:cppunit - Add support for ()
sci-libs/trilinos:cuda - Add support for cuda (dev-util/nvidia-cuda-toolkit)
sci-libs/trilinos:eigen - Add support for eigen (dev-cpp/eigen)
sci-libs/trilinos:glpk - Add support for ()
sci-libs/trilinos:gtest - Add support for gtest (dev-cpp/gtest)
sci-libs/trilinos:hdf5 - Add support for hdf5 (sci-libs/hdf5)
sci-libs/trilinos:hwloc - Add support for hwloc (sys-apps/hwloc)
sci-libs/trilinos:hypre - Add support for hypre (sci-libs/hypre)
sci-libs/trilinos:matio - Add support for matio (sci-libs/matio)
sci-libs/trilinos:metis - Add support for metis (sci-libs/(par)metis)
sci-libs/trilinos:mkl - Add support for mkl (sci/libs/mkl)
sci-libs/trilinos:mumps - Add support for mumps (sci-libs/mumps)
sci-libs/trilinos:netcdf - Add support for netcdf (sci-libs/netcdf)
sci-libs/trilinos:petsc - Add support for petsc (sci-mathematics/petsc)
sci-libs/trilinos:qd - Add support for qd (sci-libs/qd)
sci-libs/trilinos:scalapack - Add support for scalapack (virtual/scalapack)
sci-libs/trilinos:scotch - Add support for scotch (sci-libs/scotch)
sci-libs/trilinos:sparse - Add support for sparse matrix solvers (sci-libs/umfpack)
sci-libs/trilinos:superlu - Add support for superlu (sci-libs/superlu)
sci-libs/trilinos:taucs - Add support for taucs (sci-libs/taucs)
sci-libs/trilinos:tbb - Add support for threading building blocks library (dev-cpp/tbb)
sci-libs/trilinos:tvmet - Add support for tvmet (dev-libs/tvmet)
sci-libs/trilinos:yaml - Add support for yaml (dev-cpp-yaml)
sci-libs/xblas:int64 - Build the 64 bits integer library
sci-mathematics/Macaulay2:optimization - Disable to build with -O0 for debugging.
sci-mathematics/acl2:books - build community books, the canonical collection of open-source libraries
sci-mathematics/dolfin:cgal - Adds support for geometric algorithms with sci-mathematics/cgal
sci-mathematics/dolfin:cholmod - Adds support for sparse Cholesky factorization with sci-libs/cholmod
sci-mathematics/dolfin:parmetis - Adds support for parallel graph partitioning with sci-libs/parmetis
sci-mathematics/dolfin:scotch - Adds support for graph partitioning with sci-libs/scotch
sci-mathematics/dolfin:umfpack - Adds support for sparse solving with sci-libs/umfpack
sci-mathematics/gambit:X - Enable gui support using wxWidgets.
sci-mathematics/gap:xtom - Automatically generated description for xtom
sci-mathematics/htk:hdecode - Install HDecode, a large vocabulary word recogniser
sci-mathematics/htk:hlmtools - Install the tools for manipulation of language models
sci-mathematics/htk:hslab - Install HSLab a label editor for speech label manipulation
sci-mathematics/htk:htkbook - Build the HTK documentation (HTK Book)
sci-mathematics/netgen:opencascade - Enable OpenCASCADE support
sci-mathematics/petsc:afterimage - Use Afterstep image library (media-libs/libafterimage)
sci-mathematics/petsc:boost - Use boost (dev-libs/boost)
sci-mathematics/petsc:complex-scalars - Make scalars complex
sci-mathematics/petsc:hypre - Use HYPRE (sci-mathematics/hypre) and for preconditioning
sci-mathematics/petsc:mumps - PLEASE FIX MY DESCRIPTION
sci-mathematics/petsc:scotch - PLEASE FIX MY DESCRIPTION
sci-mathematics/petsc:sparse - Use suitesparse (sci-libs/suitesparse) including cholmod (sci-libs/cholmod) for sparse factorization
sci-mathematics/petsc:superlu - Use superlu (sci-libs/superlu) for preconditioning
sci-mathematics/scilab:emf - Add suport for exporting to emf files
sci-mathematics/scilab:gui - Build the Java base graphical interface
sci-mathematics/scilab:matio - Enable support for MATLAB file through sci-libs/matio
sci-mathematics/scilab:umfpack - Adds support for sparse solving with sci-libs/umfpack
sci-mathematics/scilab:xcos - Enable building hybrid dynamic systems modeler and simulator Xcos
sci-mathematics/why:apron - Use sci-mathematics/apron library for abstract interpretation
sci-mathematics/why:coq - Add sci-mathematics/coq support
sci-mathematics/why:float - Add sci-mathematics/flocq support
sci-mathematics/why:frama-c - Add sci-mathematics/frama-c support
sci-mathematics/why:gappa - Add sci-mathematics/gappalib-coq support
sci-mathematics/why:pff - Add sci-mathematics/pff support
sci-mathematics/why:why3 - Add sci-mathematics/why3 support
sci-mathematics/why3:float - Add sci-mathematics/flocq support
sci-mathematics/why3:frama-c - Enable Frama-C plugin
sci-misc/elmer-gui:bundled_netgen - Use bundled version of sci-mathematics/netgen
sci-misc/elmer-gui:matc - Enables sci-libs/matc support
sci-misc/elmer-gui:opencascade - Enable sci-libs/opencascade support
sci-misc/elmer-gui:qwt - Enables x11-libs/qwt support
sci-misc/elmer-gui:vtk - Enables sci-libs/vtk support
sci-misc/hfst:foma - Add optional support for foma backend library (sci-misc/foma)
sci-misc/hfst:glib - Parse UTF-8 and collate unicode using glib instead of homebrewn methods
sci-misc/hfst:openfst - Add optional support for openfst backend library (sci-misc/openfst)
sci-misc/hfst:sfst - Add optional support for sfst backend library (sci-misc/sfst)
sci-misc/hfst:xml - Include parsers for grammars and formats that require XML support
sci-misc/kaldi:cuda - Build with CUDA support.
sci-physics/abinit:atompaw - Enable support for atompaw, a Projector Augmented Waves atomic data generator
sci-physics/abinit:bigdft - Enable support for BigDFT, DFT package using wavelet basis set
sci-physics/abinit:cuda - Enable support for nVidia CUDA
sci-physics/abinit:cuda-double - Enable support for double precision nVidia CUDA
sci-physics/abinit:etsf_io - Enable support for reading and writing the European Theoretical Spectroscopy facility (ETSF) file format.
sci-physics/abinit:fftw-mpi - Use the MPI version of sci-libs/fftw (always with either openMP or pthreads too)
sci-physics/abinit:fftw-threads - Use the threaded (openMP or pthreads) version of sci-libs/fftw
sci-physics/abinit:fox - Enable support for FoX Fortran XML library
sci-physics/abinit:levmar - Enable support for sci-libs/levmar, the Levenberg-Marquardt least-squares optimisation
sci-physics/abinit:libabinit - Build the libabinit used by sci-libs/bigdft (usage not tested yet, circular dependency not resolved)
sci-physics/abinit:libxc - Enable support for libxc, an exchange-correlation potentials library
sci-physics/abinit:lotf - Activate the Learn on The Fly method (LOTF) for Molecular Dynamics
sci-physics/abinit:scalapack - Use ScaLAPACK, a subset of LAPACK routines redesigned for heterogenous computing
sci-physics/abinit:scripts - Install helper scripts, mostly Python
sci-physics/abinit:vdwxc - Activate van der Waals exchange-correlation correction. Since 7.4.0 no longer optional
sci-physics/abinit:wannier - Enable support for wannier90, a maximally localized Wannier functions (MLWFs) calculator
sci-physics/atompaw:libxc - Enable support for libxc, an exchange-correlation potentials library
sci-physics/atompaw: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.
sci-physics/bigdft:cuda - Enable support for nVidia CUDA GPU acceleration
sci-physics/bigdft:etsf_io - Enable support for reading and writing the European Theoretical Spectroscopy facility (ETSF) file format.
sci-physics/bigdft:glib - Compile with GLib Object System support
sci-physics/bigdft:opencl - Enable support for OpenCL GPU acceleration
sci-physics/bigdft:scalapack - Use ScaLAPACK, a subset of LAPACK routines redesigned for heterogenous computing
sci-physics/elk:libxc - Use sci-libs/libxc library of exchange-correlation functionals by ETSF.
sci-physics/elk:perl - Install perl scripts.
sci-physics/elk:python - Install python scripts.
sci-physics/espresso:cuda - Enable cuda support
sci-physics/espresso:examples - Installs the examples
sci-physics/espresso:packages - Installs extra subpackages
sci-physics/geant-vmc:g4root - Build G4Root (interface for GEANT4 simulation with a ROOT geometry)
sci-physics/geant-vmc:geant3 - Build with Geant4 G3toG4 library
sci-physics/geant-vmc:mtroot - Build MTRoot (provides ROOT IO manager classes with multi-threading support)
sci-physics/geant-vmc:vgm - Enable the Virtual Geometry Model (sci-physics/vgm)
sci-physics/herwig++:c++11 - Build Herwig++ using the C++11 standard. Experimental feature, not for production use.
sci-physics/herwig++:fastjet - Adds support for sci-physics/fastjet
sci-physics/hoomd-blue:cuda - Enable cuda non-bonded kernels
sci-physics/mc-tester:hepmc - Compile sci-physics/hepmc interface
sci-physics/root:fits - Support for images and data from FITS files with sci-libs/cfitsio
sci-physics/root:geocad - Enable ROOT-CAD interface using sci-libs/opencascade
sci-physics/root:http - Enable http server support including but not limited to fastcgi support
sci-physics/root:math - Build all math related libraries plugins, needs sci-libs/gsl
sci-physics/root:pythia6 - Build the interface for sci-physics/pythia version 6.x
sci-physics/root:pythia8 - Build the interface for sci-physics/pythia version 8.x
sci-physics/root:xrootd - Build the interface for net-libs/xrootd
sci-physics/tauola:hepmc - Compile sci-physics/hepmc interface
sci-physics/tauola:tau-spinner - Compile with TauSpinner library
sci-physics/vgm:geant4 - Enable interaction with Geant4(sci-physics/geant:4)
sci-physics/vgm:root - Enable interactions with ROOT (sci-physics/root)
sci-physics/yoda:root - Adds support for sci-physics/root
sci-visualization/gnuplot:bitmap - Enable dot-matrix printers and pbm terminal
sci-visualization/gnuplot:compat - Enable backwards compatibility with version 4 syntax
sci-visualization/gnuplot:gd - Add support for media-libs/gd. Needed for GIF, JPEG, and PNG image output.
sci-visualization/gnuplot:libcerf - Enable special functions from sci-libs/libcerf
sci-visualization/mantid:doc - Generate documentation with app-doc/doxygen, QT Assistant etc
sci-visualization/mantid:opencascade - Use OpenCascade to show 3D models of instruments
sci-visualization/mantid:opencl - Use OpenCL to accelerate calculations
sci-visualization/mantid:paraview - Enable the Visualisation and Analysis Toolkit ExtensionS (VATES)
sci-visualization/mantid:tcmalloc - Use thread-caching malloc
sci-visualization/nodemon:pbs - Enable support for the Portable Batch System.
sci-visualization/v_sim:abinit - Add support for ABINIT file formats sci-physics/abinit
sci-visualization/v_sim:cube - Add support plug-in support for Cube files (densities and structures)
sci-visualization/v_sim:openbabel - Add support for ABINIT file formats sci-chemistry/openbabel
sci-visualization/v_sim:xsf - plug-in support for files that follow the XCrysDen format for structural positions and densities
sys-cluster/hpx:jemalloc - Use dev-libs/jemalloc for memory allocation
sys-cluster/hpx:papi - Use dev-libs/papi for NaCl
sys-cluster/hpx:perftools - Use dev-util/google-perftools for memory allocation
sys-cluster/hpx:tbb - Use dev-cpp/tbb for memory allocation
sys-cluster/htcondor:X - Enable the HTCondor Keyboard Daemon to monitor logged in X users for activity
sys-cluster/htcondor:boinc - Enable backfill with BOINC jobs when the cluster is not being used
sys-cluster/htcondor:cgroup - Use dev-libs/libcgroup for kernel control groups
sys-cluster/htcondor:contrib - Build contrib modules
sys-cluster/htcondor:dmtcp - Use sys-apps/dmtcp for checkpointing
sys-cluster/htcondor:libvirt - Use app-emulation/libvirt for virtualisation
sys-cluster/htcondor:management - Use net-libs/qmf for management
sys-cluster/htcondor:minimal - Don't support standard universe jobs
sys-cluster/lustre:client - Enable kernel client modules
sys-cluster/lustre:liblustre - Enable building of liblustre
sys-cluster/lustre:server - Enable kernels server modules
sys-cluster/lustre:tests - Enable installation of tests
sys-cluster/lustre:urandom - Enable use of urandom
sys-cluster/lustre:utils - Enable lustre utils
sys-cluster/mpich:mpi-threads - Enable MPI_THREAD_MULTIPLE
sys-cluster/mpich:romio - Build the ROMIO MPI-IO component
sys-cluster/mpich2:mpi-threads - Enable MPI_THREAD_MULTIPLE
sys-cluster/mpich2:romio - Build the ROMIO MPI-IO component
sys-cluster/mvapich2:large-cluster - Automatically generated description for large-cluster
sys-cluster/mvapich2:medium-cluster - Automatically generated description for medium-cluster
sys-cluster/mvapich2:romio - Automatically generated description for romio
sys-cluster/openmpi:cma - Enable the CMA (Cross Memory Attach) MCA
sys-cluster/openmpi:cuda - Add GPU direct support
sys-cluster/openmpi:heterogeneous - Enable features required for heterogeneous platform support
sys-cluster/openmpi:mpi-threads - Enable MPI_THREAD_MULTIPLE
sys-cluster/openmpi:numa - Enable numactl to allow binding processes to CPUs
sys-cluster/openmpi:romio - Build the ROMIO MPI-IO component
sys-cluster/openmpi:vt - Enable bundled VampirTrace support
virtual/blas:int64 - Add eselect module for blas libraries built with 64 bits integer ABI
virtual/cblas:int64 - Add eselect module for cblas libraries built with 64 bits integer ABI
virtual/lapack:int64 - Add eselect module for lapack libraries built with 64 bits integer ABI
virtual/mpi:romio - Enable romio, a high-performance portable MPI-IO
x11-libs/agg:gpc - Enable gpc polygon clipper library