Bug#1112049: libopenmpi40: Trying to overwrite /usr/lib/x86_64-linux-gnu/libpmix.so.2

[James Cowgill]

Hi,

I had a look at this.

The immediate problem is that both libopemmpi40 and libpmix2t64 contain
the same file:

/usr/lib/x86_64-linux-gnu/libpmix.so.2

And because both packages continue to exist with the same file, this
needs an unversioned Conflicts to solve, not a Breaks. It's not great
though as it makes libpmix2t64 hard to install.

I think this is the original upstream issue which lead to this:
https://github.com/open-mpi/ompi/issues/13346

Based on that, I think the "long term" options are:

- Rollback pmix to 5.x to remain compatible with openmpi
- Package prrte 4.x (as suggested by the upstream issue)
- Remove the separate pmix package entirely
- Patch the internal version of prrte (I don't know if this is feasible)

The first option seems the simplest. Then just wait for upstream to do a
release that's compatible with pmix 6.x.

James