[Bug fortran/82018] -Wextra should imply -Wconversion-extra

[janus at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82018

--- Comment #10 from janus at gcc dot gnu.org ---
(In reply to Thomas Koenig from comment #6)
> -Wconversion-extra uncovers lots of things that people may not want to
> see a warning about, such as i8=i4.
> 
> We had a lengthy discussion about this in 2015, with the current
> implementation as the result.
> 
> See https://gcc.gnu.org/ml/fortran/2015-05/msg00176.html and
> followups for the discussions about this.

I actually agree with most of this discussion, but it does not really discuss
the question whether -Wconversion-extra should be included in -Wextra.