3 release policy and -Wno-compat

[Edward Kmett]

The current design is that -Wcompat will be off by default and includes
warnings that are not in -Wall and that we'll be introducing warnings into
-Wall when they become actionable under a 3 release policy rather than the
more eager approach you are advocating here.

So you'll still get warnings before the changes go into effect, but with
-Wcompat you get a _lot_ of notice for when you don't care much at all
about backwards compatibility, but really want forward compatibility above
all.

-Edward

On Sun, Nov 29, 2015 at 3:37 AM, Jeremy <voldermort at hotmail.com> wrote:

> The draft of the 3 release policy has a very strict requirement for
> warnings,
> "without causing warnings even when compiled with -Wall". This causes
> breaking changes to be spread out over a number of years because of
> deprecation warnings.
>
> I propose that "-Wall" in this sentence be replaced with "-Wall
> -Wno-compat". As we are addressing an audience who wish to suppress a
> specific category of warnings, it seems reasonable to ask that they make
> this explicit.
>
> (I would also prefer for -Wcompat to be on by default, but that would be
> another discussion, if and only if this proposal is accepted.)
>
>
>
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