Testing issue: openmpi@4.1.6 halting on initialization on m1 mac, apple-clang@14.0.0

Steps to reproduce the failure(s) or link(s) to test output(s)

$ spack spec -I openmpi@4.1.6%apple-clang@14.0.0~atomics~cuda~cxx~cxx_exceptions~gpfs~internal-hwloc~internal-pmix~java~legacylaunchers~lustre~memchecker~openshmem~orterunprefix+romio+rsh~singularity+static+vt+wrapper-rpath build_system=autotools fabrics=none schedulers=none arch=darwin-monterey-m1

Error message

Any program calling MPI_INIT halts and must be closed with CTRL+C.

Here is a very simple .cpp file to test the openmpi installation.

test.cpp

#include <mpi.h>
int main (int argc, char* args[]) {
MPI_Init(&argc, &args);
MPI_Finalize();
}

to run

>> spack load openmpi@4.1.6
>> mpic++ test.cpp
>> ./a.out

Information on your system or the test runner

Running on an M1 mac, OS Monterey 12.7.1, with apple-clang 14.0.0.

This issue does not exist with openmpi versions 4.1.5 and below.

Additional information

No response

General information

• I have reported the version of Spack/Python/Platform/Runner
• I have run spack maintainers <name-of-the-package> and @mentioned any maintainers
• I have uploaded any available logs
• I have searched the issues of this repo and believe this is not a duplicate

Reproduce the exact Spack spec on the stated M1 macOS and run the minimal test.cpp through spack load, mpic++, and ./a.out. Compare the behavior with openmpi 4.1.5 and earlier, then determine whether the issue is in Spack's package configuration or the 4.1.6 build; done means the initialization hang is explained and a verified resolution is recorded.