Fixups for M4 macs

[GiudGiud]

Note the WIP commit introduces its own problem, we need to run:

install_name_tool -delete_rpath /Users/giudgl/miniforge/envs/moose-old/lib     /Users/giudgl/.local/lib/python3.11/site-packages/_openmoc.cpython-311-darwin.so

twice (and NOT 3 times, you'd naturally get a missing symbol) to clean up our library

other items:

• need to use swig 4, not the latest!
• need some working compilers with openmp. On mac I used the ones coming with this package

moose-dev                               2024.10.01       openmpi                  https://conda.software.inl.gov/public

[GiudGiud]

(try to)