https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102992
--- Comment #9 from Jürgen Reuter <juergen.reuter at desy dot de> --- I also tried that for a Fortran program ./a.out | less (pipe to less) works. It's just the redirection that does not work. I'm waiting for the compilation to check whether gfortran 11.2 from Macports shares the same problem.