[Pkg-openmpi-maintainers] Bug#459070: Bug#459070: Bug#459070: /usr/include/openmpi is missing (mpi.h isn't in /usr/include/**)

[Manuel Prinz]

Hi all!

Am Freitag, den 04.01.2008, 13:52 +0100 schrieb Ondrej Certik:
> On Jan 4, 2008 1:40 PM, Dirk Eddelbuettel <edd at debian.org> wrote:
> > Ondrej Certik wrote:
> > | In the last bug I reported:
> > |
> > | http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=457088
> > |
> > | I was told, that the mpi.h is in /usr/include/openmpi

No, you were told that it is in /usr/include/mpi. That's where mpi.h
lives, in all Debian MPI packages out there. (Except MPICH, but that's a
different story.)

> > | However, in the clean environment, the libopenmpi-dev package fails to put mpi.h into
> > | /usr/include/openmpi.

It does so because that's not the place where mpi.h can be found, see
above.

> > | How about just using plain "ln -s"? Like this:
> > | ln -s /usr/lib/openmpi/include/ /usr/include/openmpi

This would break every other MPI implementation in Debian and therefore
is not an option at all. That's what update-alternatives is for.

> > Someone really needs to fix update-alternatives.
> 
> Right. We should try to fix the real bug (update-alternatives).

The bug has a patch and is pending. It should be fixed within the next
dpkg uploads. I experienced very harsh words while working on this
issue. It wasn't fun but it's resolved. However, in this case,
update-alternatives is not to blame. You're looking for mpi.h at the
wrong place.

> Do you have some idea, where the problem is?

See above. Using /usr/include/mpi should be totally fine. It also allows
LAM users (or others) to port your package in case they need it. In
other words: Don't make OpenMPI a requirement if you don't have to.

If this does not solve your problem, I'll be glad to help you with your
package.

Best regards
Manuel
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