MacBook Pro (15 inch late 2013), running under Max OS X 10.12.6,
I successfully ran the bootstrap.sh script and started ./b2 .
Right thereafter, the build system gave the following response:
<directory> <me>$ ./b2
MPI auto-detection failed: unknown wrapper compiler mpicc-openmpi-mp
Please report this error to the Boost mailing list: http://www.boost.org You will need to manually configure MPI support.
I hope this is the right mailing list to report this error to.