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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: Towards a cleaner build
Date: Fri, 17 May 2019 15:06:59 +0300
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Cc: larsi@gnus.org, monnier@iro.umontreal.ca, emacs-devel@gnu.org
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> From: Noam Postavsky <npostavs@gmail.com>
> Date: Fri, 17 May 2019 07:25:01 -0400
> Cc: Eli Zaretskii <eliz@gnu.org>, Stefan Monnier <monnier@iro.umontreal.ca>, 
> 	Emacs developers <emacs-devel@gnu.org>
> 
> >   (declare 'warning-about-arguments-mismatch 'display-completion-list 'off)
> >
> > perhaps?
> 
> This makes sense, but it should come for free. There's never any point
> in issuing a warning about not using the advertised calling convention
> from inside the function itself. Similarly, we shouldn't issue
> warnings about calls to obsolete functions from bodies of functions
> that are themselves obsolete.

I tend to agree.