This commit does the following:
* s/ompi_check_treematch/ompi_topo_treematch/ (i.e., abide by the
prefix rule)
* change the value of ompi_topo_treematch_happy from yes/no to 0/1, so
that we can use -eq for numerical comparisons (vs. string
comparisons). It's the little things in life, no?
* Check the valueo f $OPAL_HAVE_HWLOC to ensure that hwloc support is
enabled. If not, disqualify treematch from building.
* Fixes a few places that were underquoted
* Convert from "test ... -a ..." to "test ... && test ..."
Fixesopen-mpi/ompi#797
e9b7203ece