app-arch/bzip2
app-arch/unzip
app-arch/zip
app-text/ghostscript-gpl
sys-apps/texinfo
dev-libs/libpcre2
sys-libs/ncurses:=
sys-libs/zlib
virtual/blas
virtual/lapack

curl?
      ( net-misc/curl:= )

fftw?
      ( sci-libs/fftw:3.0= )

fltk?
      ( >=x11-libs/fltk-1.3:1=[opengl,xft] )

glpk?
      ( sci-mathematics/glpk:= )

gnuplot?
      ( sci-visualization/gnuplot )

gui?
      ( dev-qt/qtcore:5 dev-qt/qtgui:5 dev-qt/qthelp:5 dev-qt/qtnetwork:5 dev-qt/qtopengl:5 dev-qt/qtprintsupport:5 dev-qt/qtwidgets:5 x11-libs/qscintilla:=[qt5
            (+)
      ] )

hdf5?
      ( sci-libs/hdf5:= )

imagemagick?
      ( media-gfx/graphicsmagick:=[cxx] )

java?
      ( >=virtual/jre-1.8:* )

json?
      ( dev-libs/rapidjson )

opengl?
      ( media-libs/freetype:= media-libs/fontconfig:= virtual/glu x11-libs/gl2ps:= )

portaudio?
      ( media-libs/portaudio )

postscript?
      ( app-text/epstool media-gfx/pstoedit >=media-gfx/fig2dev-3.2.9-r1 )

qhull?
      ( media-libs/qhull:= )

qrupdate?
      ( sci-libs/qrupdate:= )

readline?
      ( sys-libs/readline:= )

sndfile?
      ( media-libs/libsndfile )

sparse?
      ( sci-libs/arpack:= sci-libs/camd:= sci-libs/ccolamd:= sci-libs/cholmod:= sci-libs/colamd:= sci-libs/cxsparse:= sci-libs/umfpack:= )

ssl?
      ( dev-libs/openssl:= )

sundials?
      ( >=sci-libs/sundials-4:= )

X?
      ( x11-libs/libX11:= )

virtual/fortran

java?
      ( >=dev-java/java-config-2.2.0-r3 )

app-arch/bzip2
app-arch/unzip
app-arch/zip
app-text/ghostscript-gpl
sys-apps/texinfo
dev-libs/libpcre:3=
sys-libs/ncurses:0=
sys-libs/zlib
virtual/blas
virtual/lapack

curl?
      ( net-misc/curl:0= )

fftw?
      ( sci-libs/fftw:3.0= )

glpk?
      ( sci-mathematics/glpk:0= )

gnuplot?
      ( sci-visualization/gnuplot )

gui?
      ( dev-qt/qtcore:5 dev-qt/qtgui:5 dev-qt/qthelp:5 dev-qt/qtnetwork:5 dev-qt/qtopengl:5 dev-qt/qtprintsupport:5 dev-qt/qtwidgets:5 x11-libs/qscintilla:= )

hdf5?
      ( sci-libs/hdf5:0= )

java?
      ( >=virtual/jre-1.6.0:* )

opengl?
      ( media-libs/freetype:2= media-libs/fontconfig:1.0= virtual/glu >=x11-libs/fltk-1.3:1=[opengl,xft] x11-libs/gl2ps:0= )

portaudio?
      ( media-libs/portaudio )

postscript?
      ( app-text/epstool media-gfx/pstoedit media-gfx/transfig )

qhull?
      ( media-libs/qhull:0= )

qrupdate?
      ( sci-libs/qrupdate:0= )

readline?
      ( sys-libs/readline:0= )

sndfile?
      ( media-libs/libsndfile )

sparse?
      ( sci-libs/arpack:0= sci-libs/camd:0= sci-libs/ccolamd:0= sci-libs/cholmod:0= sci-libs/colamd:0= sci-libs/cxsparse:0= sci-libs/umfpack:0= )

ssl?
      ( dev-libs/openssl:0= )

sundials?
      ( >=sci-libs/sundials-4:0= )

X?
      ( x11-libs/libX11:0= )

virtual/fortran

java?
      ( >=dev-java/java-config-2.2.0-r3 )