[Bug other/44210] Extended warning control: like -Wevery -show-warnings

["redi at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #3 from redi at gcc dot gnu dot org  2010-05-20 16:14 -------
(In reply to comment #2)
> > -W is a synonym for -Wextra, so it is pointless to use both
> This perfectly illustrates the problem; I have already spend hours digging

Then I have misunderstood the problem. How does this illustrate it?

> into the manual, what I attempted was to have as much warnings as possible.

How does adding the redundant -W help get more warnings if you already have
-Wextra?

> > The manual fairly clearly documents what controls what
> I know perfectly. Consider 3-4 platforms, 2-3 versions of gcc, and you
> wouldn't want to rely on the manual to have a clear overview of what happens
> exactly on your build, with a specific file, with your options !

I don't understand what you mean here.
You said you never know what is enabled by -Wall or -Wextra, I pointed out the
manual explains it.
It is quite rare for a -W option to be moved in or out of the -Wall set, so it
doesn't vary between versions.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44210