On 2020-11-06 02:09, Gilles Filippini wrote:
But we should document (or fix if possible) that this alternatives
mechanism is a little fragile, and sometimes the link needs to be
refresh with
sudo dpkg-reconfigure libhdf5-openmpi-dev
What I mean is that sometimes the link seem to just disappear, so we
get
$ pkg-config --libs hdf5-mpi
Package hdf5-mpi was not found in the pkg-config search path.
...
Do you have a scenario leading to this alternative disparition?
It's not completely clear to me. But my suspicion is that it happens
when there is an upgrade to openmpi. Evidently then hdf5 needs to update
its alternatives against the updated openmpi.
It's a little strange though, since a simple openmpi update is not an
ABI update. The alternatives links would be the same after running
dpkg-reconfigure libhdf5-openmpi-dev. Not obvious why an openmpi update
would cause them to disappear.
