https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102992
--- Comment #12 from Jürgen Reuter <juergen.reuter at desy dot de> --- I'm not an expert on the I/O system, but could it be that the unit to which the stdout of a compiled Fortran program goes does not provide the unit that the redirect function (now) expects under macOS 12?
