https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79430
--- Comment #8 from Jürgen Reuter <juergen.reuter at desy dot de> --- We are defining a real(default) which could be 4, 8, 10 or 16, as these are the real kinds supported by gfortran. If default = 10, this happens, but this is not per se forbidden, is it?
