GNU bug report logs - #65414
save-some-buffers-functions are unexpectedly called when save-some-buffers pred is non-nil

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Juri Linkov <juri <at> linkov.net>
Cc: 65414 <at> debbugs.gnu.org, jonas <at> bernoul.li, monnier <at> iro.umontreal.ca, joseph <at> breatheoutbreathe.in
Subject: bug#65414: save-some-buffers-functions are unexpectedly called when save-some-buffers pred is non-nil
Date: Sun, 03 Sep 2023 20:44:45 +0300

> From: Juri Linkov <juri <at> linkov.net>
> Cc: Joseph Turner <joseph <at> breatheoutbreathe.in>,  Stefan Monnier
>  <monnier <at> iro.umontreal.ca>,  jonas <at> bernoul.li,  65414 <at> debbugs.gnu.org
> Date: Sun, 03 Sep 2023 20:22:56 +0300
> 
> > Hmm... but how to make this change backward-compatible?  I mean, if
> > there's some function out there that is used in
> > save-some-buffers-functions, and it was written to accept only 2
> > arguments, we cannot safely call it with 3 arguments, can we?
> 
> If nothing else helps, just catch 'wrong-number-of-arguments',
> then call with an obsolete signature again.

I was hoping for a cleaner, more elegant solution.  Still do.

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