Use what arpack & atlas variants for use with octave?

[Murray Eisenberg]

OK, I understand that. But there seems to be a catch:

  * arpack does offer a +gcc5 variant, yet “sudo port info arpack” lists a build dependency on gcc6.  

And as you’ve noticed and as I was already aware:

  * atlas has no +gcc6 variant.

Will that be a problem in installing both arpack and atlas (before installing octave)?


> On Nov 6, 2016, at 2:31 PM, Marius Schamschula <lists at schamschula.com> wrote:
> 
> 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 <murrayeisenberg at gmail.com <mailto:murrayeisenberg at gmail.com>> wrote:
> 
>>> 
>>> On Nov 6, 2016, at 1:27 PM, Marius Schamschula <lists at schamschula.com <mailto:lists at schamschula.com>> wrote:
>>> 
>>> 
>>> On Nov 6, 2016, at 12:19 PM, Murray Eisenberg <murrayeisenberg at gmail.com <mailto:murrayeisenberg at 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 <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			murrayeisenberg at gmail.com
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