Do we have gfortran from gcc 10 running anywhere? We need a check to enable -fallow-argument-mismatch from configure. Should be as simple as compiling Fortran which has PetscObjectSetName() in it. Thanks, Matt -- What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead. -- Norbert Wiener https://www.cse.buffalo.edu/~knepley/ <http://www.cse.buffalo.edu/~knepley/>