[petsc-dev] BuildSystem optional requirements

[Matthew Knepley]

On Sun, Jan 1, 2012 at 5:56 PM, Jed Brown <jedbrown at mcs.anl.gov> wrote:

> On Sun, Jan 1, 2012 at 17:55, Matthew Knepley <knepley at gmail.com> wrote:
>
>> This makes zero sense on its face. Why is the dependency conditional? It
>> should be unconditional
>> and then we check whether it was found. Change it!
>>
>
> It depends on *either* ParMetis or PTScotch. How do we specify that either
> one is acceptable?
>

Make a dependency for BOTH and choose one during package configure. What
else would you do?

  Matt

-- 
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener
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