GNU bug report logs - #74382
`compile-first` Make rule is no longer using `load-prefer-newer`

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Package: emacs;

Reported by: Konstantin Kharlamov <Hi-Angel <at> yandex.ru>

Date: Sat, 16 Nov 2024 15:12:02 UTC

Severity: normal

Tags: notabug

Done: Eli Zaretskii <eliz <at> gnu.org>

Bug is archived. No further changes may be made.

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From: Gerd Möllmann <gerd.moellmann <at> gmail.com>
To: Konstantin Kharlamov <Hi-Angel <at> yandex.ru>
Cc: Alan Mackenzie <acm <at> muc.de>, 74382 <at> debbugs.gnu.org
Subject: bug#74382: `compile-first` Make rule is no longer using `load-prefer-newer`
Date: Sun, 17 Nov 2024 08:25:12 +0100

Konstantin Kharlamov <Hi-Angel <at> yandex.ru> writes:

> Sure, I just reproduced it after removing all `.elc` files in the repo,
> here how:
>
> 1. `git checkout f2f13fa630b` (a commit from April)
> 2. `make -j$(nproc)` to compile. Note: you don't need to wait for build
> to finish, I just waited for all files under `lisp/emacs-lisp`
> directory to finish compilation, and then ^C'ed it.
> 3. `git checkout 29098a291f5` (a November commit).
> 4. `make -j$(nproc)`

This would always work if lisp/Makefile would rm the .elc files from
COMPILE_FIRST, right? I suspect this isn't done to speed up the build in
the usual case, and because it's a bit difficult to automatically
determine if it has to done or not.

Does a "make clean" after the checkout in (3) make it work?
This bug report was last modified 215 days ago.

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