CFITSIO's Fortran interface

[David Strubbe]

Hi Sébastien and Ryan,

The solution discussed here will solve the problem but is unnecessarily
restrictive by using only +gcc5. What you should do is this line instead:

compilers.enforce_some_fortran cfitsio

Then any of the Fortran variants gcc5, g95, gcc49 etc. will be accepted.
This is part of the compilers portgroup.

David

On Tue, Feb 16, 2016 at 4:09 AM, Sébastien Maret <sebastien.maret at icloud.com
> wrote:

>
> > Le 15 févr. 2016 à 19:24, Ryan Schmidt <ryandesign at macports.org> a
> écrit :
> >
> >>
> >> On Feb 15, 2016, at 2:07 AM, Sébastien Maret <
> sebastien.maret at icloud.com> wrote:
> >>
> >>>
> >>> Le 11 févr. 2016 à 16:19, Ryan Schmidt <ryandesign at macports.org> a
> écrit :
> >>>
> >>> On Feb 11, 2016, at 2:00 AM, Sébastien Maret wrote:
> >>>>
> >>>>> Le 10 févr. 2016 à 16:23, Ryan Schmidt <ryandesign at macports.org> a
> écrit :
> >>>>>
> >>>>> On Feb 10, 2016, at 8:52 AM, Sébastien Maret wrote:
> >>>>>
> >>>>>> I am maintaining the Gildas port which depends on the CFITSIO
> library. CFITSIO has a Fortran interface but it is not built by default:
> one need to select a specific variant (e.g. +gcc 5) for this. This is a
> problem for the Gildas because the compilation fails without the Fortran
> interface:
> >>>>>> https://trac.macports.org/ticket/50543
> >>>>>>
> >>>>>> Is there a way for a port to depend on a specific variant of
> another port? If not then how can I solve this?
> >>>>>
> >>>>> The require_active_variants procedure in the active_variants 1.1
> port group.
> >>>>
> >>>> Thanks. I’ve added the cfitsio +gcc5 in require_active_variants and
> this solves the problem on Yosemite:
> >>>> https://trac.macports.org/changeset/145605
> >>>>
> >>>> However the compilation fails on older MacOS versions because the
> +gcc5 variant is not available.
> >>>
> >>> Why isn't the gcc5 variant available on older Mac OS versions?
> >>
> >> I don’t know. The build bot log for Mountain Lion says:
> >>
> >> DEBUG: cfitsio is installed with the following variants:
> >> DEBUG:   required: gcc5, forbidden:
> >> DEBUG:   rejected, because required variant gcc5 is missing
> >> Error: org.macports.configure for port gildas returned: cfitsio must be
> installed with +gcc5.
> >>
> >>
> https://build.macports.org/builders/buildports-mtln-x86_64/builds/27804/steps/compile/logs/stdio/text
> >>
> >> so I thought that the cfitsio +gcc5 variant was missing on that
> platform. But perhaps I misunderstand the build bot log?
> >
> > I think you misunderstand. This message is generated by the
> active_variants 1.1 portgroup. It means that gildas requires the cfitsio
> port to be installed with the +gcc5 variant, but the user (in this case,
> the buildbot) did not do that (in this case, because it is not a default
> variant, and the buildbot only builds default variants). So, nothing about
> this situation should really be OS X-version-specific.
>
> OK, thanks for the clarifications.
>
> Sébastien
>
>
>
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