Subject: Re: bug#48117: 28.0.50; Update of loaddefs.el during normal build is unreliable

From: Eli Zaretskii <[email-masked]>
Date: Fri, 30 Apr 2021 19:03:53 +0300

> From: Andreas Schwab <[email-masked]>
> Cc: Eli Zaretskii <[email-masked]>,  [email-masked]
> Date: Fri, 30 Apr 2021 17:59:45 +0200
> 
> On Apr 30 2021, Glenn Morris wrote:
> 
> > always regenerate loaddefs, but using a temporary file name for the
> > main loaddefs.
> > use build-aux/move-if-change to only replace the real loaddefs file if
> > there have been changes.
> 
> That's already what batch-update-autoloads does.

Judging by the results, that's not so.  Specifically,
batch-update-autoloads doesn't regenerate _all_ of the loaddefs.el,
only some of its part(s).