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From: Lars Ingebrigtsen <larsi@gnus.org>
To: Eli Zaretskii <eliz@gnu.org>
Cc: 57152@debbugs.gnu.org
Subject: bug#57152: 29.0.50; Emacs executable isn't rebuilt when loaddefs.el is modified
Date: Mon, 15 Aug 2022 12:07:15 +0200	[thread overview]
Message-ID: <87a685akh8.fsf@gnus.org> (raw)
In-Reply-To: <878rnsl683.fsf@gnus.org> (Lars Ingebrigtsen's message of "Sat, 13 Aug 2022 13:42:52 +0200")

I've spent an hour poking at this.  Here's the recipe to reproduce:

echo ";;;###autoload ;;(+ 1 2)" >> lisp/foo.el
make

This will update loaddefs.el(c), but won't rebuild src/emacs.pdmp.
Then, if you say

make

it'll rebuild src/emacs.pdmp.

I've tried various things, like making autoloads an order-only
prerequisite for $(pdmp) (and various other targets), but the main
problem seems to be that Make has already computed the
timestamps/dependencies at this point, so even if we're running the
update at the "right" time, we don't trigger the $(pdmp) rule.

And moving this earlier results in problems with the boot build.

I think it'd be helpful if somebody with fresh eyes could take a look at
this.






  reply	other threads:[~2022-08-15 10:07 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-12  7:03 bug#57152: 29.0.50; Emacs executable isn't rebuilt when loaddefs.el is modified Eli Zaretskii
2022-08-12 15:14 ` Lars Ingebrigtsen
2022-08-12 15:29   ` Eli Zaretskii
2022-08-13 11:42     ` Lars Ingebrigtsen
2022-08-15 10:07       ` Lars Ingebrigtsen [this message]
2022-08-15 11:58         ` Eli Zaretskii
2022-08-15 13:32           ` Gerd Möllmann
2022-08-17 10:40             ` Lars Ingebrigtsen
2022-08-17 13:50               ` Gerd Möllmann
2022-08-18 12:46                 ` Lars Ingebrigtsen
2022-08-19  9:24                   ` Gerd Möllmann
2022-08-17 10:34           ` Lars Ingebrigtsen
2022-08-17 12:08             ` Eli Zaretskii

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