Bug#833425: Aw: Re: Bug#833425: mpi-defaults: switch to openmpi on hppa architecture

[Mattia Rizzolo]

On Thu, Aug 04, 2016 at 12:02:51PM +0200, Helge Deller wrote:
> > > The openmpi packages builds successfully on hppa, so I'd suggest to switch
> > > to openmpi for hppa (and maybe m68k and sh4?) too.
> > 
> > notice that switching default means rebuilding all the rdep in the
> > correct order (ben is able to provide the correct order).  I've been
> > able to do it correctly for s390x (#813691) thanks to the release team
> > tracking the transition, but we don't have tools for ports, so this is
> > really up to you.  Otherwise what you get is FTBFS of packages down in
> > the chain, and runtime errors due to different ABI of the library (I
> > noticed some programs are clever enough to say "libfoo has been linked
> > against mpich but I'm now building against openmpi, I can't do that,
> > please rebuild libfoo first", but most don't and just throw an error
> > (IIRC a linking error)).
> 
> I'd be fine with rebuilding all required packages, and I'd appreciate
> info from you or Ben which order is required.

be aware that ben is this: https://tracker.debian.org/pkg/ben which is
what powers https://release.debian.org/transitions/index.html :)

I'm really not able to provide such support, though maybe you can easily
follow it by just see what fails to build.  I suppose there are not that
many users of MPI software in hppa anyway to notice a small breakage.

> Currently I've stopped all hppa buildds and plan to upgrade them to gcc6
> before starting them again. And, I've started a test build of boost1.6.1
> to check if the mpi-defaults change will help. I expect a result during
> the next few hours. I'll let you know of the outcome.

I've committed the change to git, as I assume you know you things as a
hppa porter.

If you don't stop me I'll upload next hours.

-- 
regards,
                        Mattia Rizzolo

GPG Key: 66AE 2B4A FCCF 3F52 DA18  4D18 4B04 3FCD B944 4540      .''`.
more about me:  https://mapreri.org                             : :'  :
Launchpad user: https://launchpad.net/~mapreri                  `. `'`
Debian QA page: https://qa.debian.org/developer.php?login=mattia  `-
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