[petsc-dev] Help with configure and cmake

[Matthew Knepley]

On Fri, Mar 11, 2011 at 11:14 AM, Jed Brown <jed at 59a2.org> wrote:

> On Fri, Mar 11, 2011 at 18:08, Matthew Knepley <knepley at gmail.com> wrote:
>
>> This does not help AT ALL. How is it bad? I use it all the time just fine,
>> so I was not changing it unless there were complaints.
>
>
> If you can just update your scripts to only support petsc-dev, then no big
> deal. But if you have a project that wants to support several versions of
> PETSc, you would need to maintain multiple versions every time an API
> changes. BuildSystem does not have a stable API: try building today's
> petsc-dev using BuildSystem from last year or building last year's petsc
> using today's BuildSystem.
>

No argument. That is why PETSc only supports a single version of anything.
Doing anything else is untenable.

   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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