Guess we already had an rc4, so let's release rc5
hwloc: fix compilation when configure'd with --without-hwloc

This commit fixes a misplaced #endif from open-mpi/ompi-release@1bbb7f6890197284df87a0200b6297515062d1be
and is a one off commit (e.g. master is ok)
Merge pull request #138 from ggouaillardet/topic/nohwloc_protect

hwloc: fix compilation when configure'd with --without-hwloc
Merge remote-tracking branch 'release/v1.8' into topic/sync_with_ompi
OPAL: skip comparison when when fs=autofs in mtab, because we are looking for reals fs type
(cherry picked from commit da5b8c68798dadf0ef2d8a8eb9ac2cd75813380b)
Merge pull request #27 from miked-mellanox/topic/sync_with_ompi

sync with ompi-release/v1.8