Hi all - tl;dr Please run git submodule update --init --recursive next time you update your checkout of the main branch.
This morning, we merged a change that adds another submodule to the main branch. This submodule (named oac, because we suck at naming) will contain a set of Autoconf macros that are shared between Open MPI, OpenPMIx, and PRRTE. Ralph and I have been hand-synchronizing macros, and it was getting too much for us to continue doing so. In the short term, the only change is another submodule to make sure you update. We're creating compatibility macros so that all existing macros in the OMPI tree will work without more changes. Hopefully, this will help avoid some debugging issues that some of us have had as we're trying to keep things sane across the three projects. Thanks, Brian
