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Subject: [bug#39862] [PATCH v3 2/2] gnu: define dune-*-openmpi packages
Resent-Message-ID: <handler.39862.B39862.158409257113010@debbugs.gnu.org>
From: Ludovic =?UTF-8?Q?Court=C3=A8s?= <ludo@gnu.org>
References: <87k13pvj5u.fsf@gnu.org>
 <20200312210513.107891-3-felgru@posteo.net>
Date: Fri, 13 Mar 2020 10:42:42 +0100
In-Reply-To: <20200312210513.107891-3-felgru@posteo.net> (Felix Gruber's
 message of "Thu, 12 Mar 2020 22:05:13 +0100")
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To: Felix Gruber <felgru@posteo.net>
Cc: 39862@debbugs.gnu.org

Hi Felix,

Felix Gruber <felgru@posteo.net> skribis:

> * gnu/packages/maths.scm (dune-*-openmpi): New variables.
> * gnu/packages/maths.scm (add-openmpi-to-dune-package): New function to
>   add openmpi to the inputs of a dune-* package and replace all dune-*
>   packages in its input with the corresponding dune-*-openmpi package.

Nitpick: no need to repeat the file name above.  It would also be great
if you could list all the new variables.

> +      (lambda (p) (not (dune-package? p))))))

You can replace the lambda with:

  (negate dune-package?)

One last thing: could you look at the output of, say, =E2=80=98guix graph
dune-geometry-openmpi=E2=80=99 and ensure we=E2=80=99re not duplicating mor=
e nodes than
needed in the graph?

For example, you can compare node counts with:

  guix graph dune-geometry | grep 'label =3D' | wc -l
  guix graph dune-geometry-openmpi | grep 'label =3D' | wc -l

The difference should be less than:

  guix graph openmpi | grep 'label =3D' | wc -l

If that works well, please send an updated patch and we should be ready
to go!

Thanks,
Ludo=E2=80=99.