GNU bug report logs - #30039
26.0.90; [26.1] Making my code warning free is impossible with when-let

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From: Noam Postavsky <npostavs <at> users.sourceforge.net>
To: Nicolas Petton <nicolas <at> petton.fr>
Cc: Damien Cassou <damien <at> cassou.me>, 30039 <at> debbugs.gnu.org
Subject: bug#30039: 26.0.90; [26.1] Making my code warning free is impossible with when-let
Date: Wed, 10 Jan 2018 14:11:47 -0500

[Message part 1 (text/plain, inline)]

On Tue, Jan 9, 2018 at 3:16 AM, Nicolas Petton <nicolas <at> petton.fr> wrote:

>> - un-deprecate when-let (and if-let) in Emacs 26 and re-deprecate it
>>   later.
>
> I'm facing the same issue, un-deprecating when-let would also make my CI
> happier.

How about adding a variable which suppresses deprecation warnings from
a specified version and up. Attached is a work-in-progress patch which
would allow you to set byte-compile-not-obsolete-since to "25.1" in
your CI script (or file-locally) and thus ignore deprecation warnings
from 26.1 or newer.

Alternatively, or additionally, we could let
`byte-compile-not-obsolete-funcs' apply to macros as well (currently
macroexp-macroexpand doesn't consult it).

[v1-0001-WIP-Allow-suppressing-obsoletion-warnings-per-ver.patch (application/octet-stream, attachment)]

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