[MOAB-dev] Disable fortran in moab-5.0.0

[Vijay S. Mahadevan]

Hi Paul,

There are a couple of protos (CN/ that get included in some source
files. I haven't fully tested this branch on all our builds yet but if
all of them do pass, I believe we may not need mangling. We are of
course talking about the case of not having a fortran compiler,
whether you want BLAS or not.

Vijay

On Tue, Nov 14, 2017 at 10:34 PM, Paul Wilson <paul.wilson at wisc.edu> wrote:
> Hi Vijay,
>
> Maybe I'm missing something, but if building without BLAS/LAPACK, what is
> the mangling still needed for?
>
> Paul
>
>
>
> On 11/14/2017 07:58 PM, Vijay S. Mahadevan wrote:
>>
>> Hi Lorenzo,
>>
>> Can you give the branch "vijaysm/osx-blas-lapack" a try on your
>> machines ? I've added several additional configure options to control
>> the mangling (when fortran is disabled), and an option to disable
>> BLAS/LAPACK (only if Eigen is present). A combination of:
>> --disable-blaslapack --with-eigen3 --with-fc-mangling-suffix="_"
>> should give you the right result. Let me know if this gives you the
>> result of not requiring a Fortran compiler.
>>
>> I will merge this branch to develop and run our buildbot tests on
>> various configuration combinations. Paul, I'll also make some
>> modifications to CMake if this approach is acceptable. Let me know.
>>
>> Iulian, any comments ?
>>
>> Vijay
>>
>> On Fri, Nov 10, 2017 at 5:14 PM, Vijay S. Mahadevan <vijay.m at gmail.com>
>> wrote:
>>>
>>> Paul, as Lorenzo mentioned, we need to modify configuration to enable
>>> this cross option. I can look into that as well.
>>>
>>> The more combinations/options we add, the more complicated the
>>> configuration becomes. While things do become seemingly flexible, I
>>> just want to make sure it doesn't become a maintenance nightmare later
>>> on. Hence the decision originally to just make BLAS/LAPACK mandatory
>>> and not allow Eigen (with/without external BLAS). The implication on
>>> FC here was a side effect unfortunately of that decision.
>>>
>>> Vijay
>>>
>>> On Fri, Nov 10, 2017 at 3:29 PM, Lorenzo Botti <bottilorenzo at gmail.com>
>>> wrote:
>>>>
>>>> Dear Paul,
>>>> I don’t think it’s actually possible. The build system should be
>>>> modified to
>>>> account for such a configure option.
>>>> Anyway this is also what I need, a fix to run MOAB on OSX without
>>>> fortran.
>>>> On my laptop I’m not interested on performance but I do most of the
>>>> development.
>>>> Installing a fortran compiler on OSX is a pain, as far as I know this
>>>> forces
>>>> me to use gcc instead of clang.
>>>> Accordingly I would need to use a package manager like macports or
>>>> homebrew,
>>>> or to compile gcc myself.
>>>> A fallback on Eigen would be really welcome.
>>>>
>>>> Bests
>>>> Lorenzo
>>>>
>>>> On 10 Nov 2017, at 21:19, Paul Wilson <paul.wilson at wisc.edu> wrote:
>>>>
>>>> I'm not sure if I follow how to actually do what you are suggesting.  If
>>>> I
>>>> wanted to rely on Eigen instead of both BLAS/LAPACK, is there a set of
>>>> options I can pass to either autoconf or CMAKE to do that?
>>>>
>>>>
>
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>
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