Murray, The version of gfortran depends on the version of gcc chosen by the compilers port group (currently gcc5).
On Nov 6, 2016, at 12:50 PM, Murray Eisenberg <murrayeisenb...@gmail.com> wrote: >> >> On Nov 6, 2016, at 1:27 PM, Marius Schamschula <li...@schamschula.com> wrote: >> >> >> On Nov 6, 2016, at 12:19 PM, Murray Eisenberg <murrayeisenb...@gmail.com> >> wrote: >> >>> I’m reinstalling arpack, atlas, and octave during completion of MacPorts >>> migration to macOS Sierra. >>> >>> On El Capitan, my installed ports included: >>> >>> arpack @3.3.0_3+atlas+gfortran >>> atlas @3.10.2_2 >>> octave >>> @4.0.3_1+app+atlas+docs+fltk+gfortran+graphicsmagick+qt4gui+sound-accelerate-java >>> >>> >>> I began now with: >>> >>> sudo port install arpack -accelerate+atlas >>> >>> (1) Should I have added +gfortran there, since for octave I’m going to be >>> including variant +gfortran ? >>> >>> (2) Is there any particular reason to use a +gccxx variant with atlas? >> >> The choice of which version of gfortran is used for arpack should be the >> same as the version used to build atlas (and for that matter octave). >> >> Unfortunately, atlas currently only supports gcc5, not gcc6. See >> https://trac.macports.org/ticket/52606 >> > > > I don’t understand about “which version of gfortran”: arpack, like octave, > offers +gfortran but without any indication of version of gfortran. > And atlas does not offer any variant (at least directly) of fortran. > > --- > Murray Eisenberg murrayeisenb...@gmail.com > 503 King Farm Blvd #101 Home (240)-246-7240 > Rockville, MD 20850-6667 Mobile (413)-427-5334 Marius -- Marius Schamschula