OpenMPI 4.1.4 fails with missing libfabric

[surak]

When having some problems with OpenMPI on my cluster, I ran up hitting #5996. By commenting out that problematic line, I realized that I can't install OpenMPI 4.1.4-GCC-11.3.0 anymore.

The OS is Ubuntu 20.04 and libfabric1 and libfabric-dev are installed.

checking for MCA component common:ofi compile mode... dso
checking --with-ofi value... sanity check ok (/easybuild/2020/software/libfabric/1.15.1-GCCcore-11.3.0)
checking --with-ofi-libdir value... simple ok (unspecified value)
checking looking for OFI libfabric in... (/easybuild/2020/software/libfabric/1.15.1-GCCcore-11.3.0)
checking for rdma/fabric.h... yes
looking for library in lib
checking for library containing fi_getinfo... no
looking for library in lib64
checking for library containing fi_getinfo... no
configure: WARNING: OFI libfabric support requested (via --with-ofi or --with-libfabric), but not found.
configure: error: Cannot continue.

[boegel]

@surak The checking --with-ofi value line clearly shows that libfabric was found, so I'm not sure what's going on here...
Is this persistent? Could be a temporary glitch in the matrix (or filesystem issue) perhaps?

[surak]

No - it's repeatable. I don't understand it either. I commented it out as the machines I tried this use ethernet.

[boegel]

@surak Can you share the config.log?
Did you check for known issues in the OpenMPI issue tracker?