Slurm workload manger not build against PMIx for ppc64el architecture

[Gabriele Förstner]

On ppc64el SLURM nodes, the PMIx is not enabled:

srun --mpi=list
srun: MPI types are...
srun: openmpi
srun: pmi2
srun: none

The PMIx libraries are all installed and available, but the slurm package has been configured using the x86_64 library PATH - which is unavailable for ppc64el architectures- instead of using the DEB_HOST_MULTIARCH variable:

Here the relevant lines of the debian/rules file:

override_dh_auto_configure:
 dh_auto_configure -- --sysconfdir=/etc/slurm-llnl --with-munge --enable-pam --without-rpath --disable-debug --enable-multiple-slurmd --with-pmix=/usr/lib/x86_64-linux-gnu/pmix $(ENABLEDEPRECATED)
 dh_auto_configure --builddirectory build-emulator -- -sysconfdir=/etc/slurm-llnl --with-munge --enable-pam --without-rpath --disable-debug --enable-front-end --enable-multiple-slurmd --with-pmix=/usr/lib/$(DEB_HOST_MULTIARCH)/pmix $(ENABLEDEPRECATED)

The following dh_auto_configure works and enables pmix:

override_dh_auto_configure:
 dh_auto_configure -- --sysconfdir=/etc/slurm-llnl --with-munge --enable-pam --without-rpath --disable-debug --enable-multiple-slurmd --with-pmix=/usr/lib/$(DEB_HOST_MULTIARCH)/pmix $(ENABLEDEPRECATED)
 dh_auto_configure --builddirectory build-emulator -- -sysconfdir=/etc/slurm-llnl --with-munge --enable-pam --without-rpath --disable-debug --enable-front-end --enable-multiple-slurmd --with-pmix=/usr/lib/$(DEB_HOST_MULTIARCH)/pmix $(ENABLEDEPRECATED)