Well, does ./configure outputs something like
.....
gcc-7.2.0 not installed (configure check)
gdb-8.2
gf2x-1.2.p0
gfan-0.6.2.p0
gfortran-7.2.0 not installed (configure check)
...
If so it should not build gfortran (unless you have SAGE_INSTALL_GCC
set to yes for some reason...)
On Tue, Oct 30, 2018 at 4:39 PM Timo Kaufmann <eisfre...@gmail.com> wrote:
>
> No, but nixos doesn't follow FHS[0], so I am using linux namespaces (more
> precisely this[1]) to build sage in an environment where all the build
> dependencies are at their FHS locations. So sage is using nixos's gfortran,
> the namespaces are just so it can find it where it expects it. This worked
> before, I'm not sure if it stopped working because of a sage change or a
> gfortran update. I vaguely remembered reading something similar on the
> mailing list, so I thought I'd ask you what you think is causing this before
> spending more time debugging.
>
> [0] https://en.wikipedia.org/wiki/Filesystem_Hierarchy_Standard
> [1] https://nixos.org/nixpkgs/manual/#sec-fhs-environments
>
> Am Dienstag, 30. Oktober 2018 16:34:47 UTC+1 schrieb Dima Pasechnik:
>>
>> On Tue, Oct 30, 2018 at 4:29 PM Timo Kaufmann <eisf...@gmail.com> wrote:
>> >
>> > Its a bit of a complicated case, but I'm not using anaconda. I'm using
>> > nixos and a special build environment that uses linux namespaces to make
>> > sure all the dependencies are in the location sage expects them. I'm using
>> > that to build sage-the-distribution when testing because that won't build
>> > natively on nixos.
>>
>> Hmm, do you mean to say you cannot have "native" nixos's gfortran, you
>> must build Sage's one?
>>
>> >
>> > Am Dienstag, 30. Oktober 2018 16:08:24 UTC+1 schrieb Dima Pasechnik:
>> >>
>> >> On Tue, Oct 30, 2018 at 4:01 PM Timo Kaufmann <eisf...@gmail.com> wrote:
>> >> >
>> >> > I just had the same issue. Why do you think "several versions of
>> >> > gfortran guts" are the issue? How does sage find gfortran / why does it
>> >> > get confused?
>> >> >
>> >>
>> >> What's the OS you are using? How do you install Sage?
>> >> I suspect it's a conflict with (Ana)conda...
>> >>
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