Public bug reported:
I have installed libhdf5-mpi-dev (version 1.10.6+repack-5), which
depends on libhdf5-openmpi-dev (version 1.10.6+repack-5). Package
libhdf5-openmpi-dev currently seems to use update-alternatives to create
a symlink from /usr/bin/h5pcc to the installed HDF5 C compiler wrapper
at /usr/bin/h5pcc.openmpi. However the package doesn't seem to create a
matching symlink for the HDF5 C++ compiler wrapper, that is it doesn't
create a symlink from /usr/bin/h5c++ to /usr/bin/h5c++.openmpi. This
results in a confusing scenario where the HDF5 C compiler wrapper can be
invoked using command h5pcc but the HDF5 C++ compiler wrapper can only
be invoked using command h5c++.openmpi. The current behaviour also
breaks building HDF5 C++ programs using CMake because CMake expects the
HDF5 C++ compiler wrapper to be available as h5c++. It is possible that
the inability to invoke the HDF5 C++ compiler wrapper as h5c++ breaks
other things that I'm unaware of.
Because I'm using Ubuntu to compile HDF5 C++ programs, I've worked
around the issue by creating a similar symlink manually using command:
update-alternatives --install /usr/local/bin/h5c++ h5c++
/usr/bin/h5c++.openmpi 40
Creating the symlink using the above command has also fixed building
HDF5 C++ programs using CMake. I think libhdf5-openmpi-dev should be
updated to automatically symlink h5c++ just as it currently symlinks
h5pcc.
I have used Ubuntu 21.10 (Impish Indri) to reproduce this issue. Please
note that I have used Ubuntu via the official Docker image, but I'm sure
this issue is reproducible on a proper installation as well.
** Affects: hdf5 (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1953595
Title:
Executable h5c++ is not in the expected location
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