GNU bug report logs - #48117
28.0.50; Update of loaddefs.el during normal build is unreliable

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Message #17 received at 48117 <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 48117 <at> debbugs.gnu.org
Subject: Re: bug#48117: 28.0.50;
 Update of loaddefs.el during normal build is unreliable
Date: Fri, 30 Apr 2021 11:38:43 -0400

One idea, don't know if workable:
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. Although again, it's possible these would not
be "real" (ie significant) changes.

This would mean every invocation of make would generate a loaddefs file,
often for no need, which seems ugly.
It's a trade off between doing things properly (which is a bootstrap)
and efficiently, as has always been the case with Emacs's build.

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