https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89646
--- Comment #5 from Dominique d'Humieres <dominiq at lps dot ens.fr> --- > I meant "replace the 0". The replacement could be OPT_Wsurprising (-Wsurprising, included in -Wall) or OPT_Wextra (-Wextra) or yet a new option. The warning is tested in gfortran.dg/elemental_dependency_1.f90.
