sudo port -N install pkgconfig gcc9 openmpi-gcc9 fftw-3 gsl jpeg zlib hdf5 +fortran +gfortran openssl ld64
sudo port select mpi openmpi-gcc9-fortran
sudo port select gcc mp-gcc9

End of options from '/Users/jenkins/Cactus/configs/sim/OptionList'.
creating cache ./config.cache
checking host system type... i386-apple-darwin18.7.0
checking whether make sets ${MAKE}... yes
checking whether the C compiler (gcc-mp-9 -g -std=gnu99 -rdynamic) works... no
configure: error: installation or configuration problem: C compiler cannot create executables (see configs/sim/config-data/config.log for details).

Error reconfiguring sim-config
make: *** [sim-config] Error 2

configure:1021: checking whether the C compiler (gcc-mp-9 -g ---

Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2290/failure-to-compile-et_mayer-using-gcc-mp-9