[Bug fortran/69495] unused-label warning does not tell which flag triggered it

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69495

--- Comment #11 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
I think you need to add a line

! { dg-options "-pedantic" }

to elemental_optional_args_6.f90 (untested).