From: Magnus Henoch <mange@freemail.hu>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: 2151@emacsbugs.donarmstrong.com
Subject: bug#2151: 23.0.90; Building the 23.0.90 pretest recompiles Lisp files
Date: Mon, 02 Feb 2009 21:25:59 +0000 [thread overview]
Message-ID: <8463js5y54.fsf@linux-b2a3.site> (raw)
In-Reply-To: <jwvbptk7skr.fsf-monnier+emacsbugreports@gnu.org> (Stefan Monnier's message of "Mon, 02 Feb 2009 11:02:49 -0500")
Stefan Monnier <monnier@iro.umontreal.ca> writes:
> PS: Part of the problem, as far as I understand it, is that we need
> the .elc files to depend on bootstrap-emacs so as to tell `make' to
> build bootstrap-emacs when needed, but we don't actually need the .elc
> files to be newer than bootstrap-emacs (in some rare cases a newer
> bootstrap-emacs will compile the .el differently, but in general it's
> not the case). But `make' doesn't have such a concept of a dependency
> that "needs to exist, but doesn't need to be older".
I think (info "(make)Prerequisite Types") provides just that. (And the
Features section at least doesn't explicitly say that this is unique for
GNU make.)
I.e. something like:
%.elc: %.el | bootstrap-emacs
cp $< $@
Apologies if I'm missing the point; I just wanted to point out this
rarely-used make feature.
Magnus
next prev parent reply other threads:[~2009-02-02 21:25 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-02 6:03 bug#2151: 23.0.90; Building the 23.0.90 pretest recompiles Lisp files Eli Zaretskii
2009-02-02 16:02 ` Stefan Monnier
2009-02-02 20:42 ` Eli Zaretskii
2009-02-03 21:24 ` Stefan Monnier
2009-02-04 4:25 ` Eli Zaretskii
2009-02-04 19:51 ` Stefan Monnier
2009-02-21 16:10 ` Eli Zaretskii
2009-02-21 20:54 ` Stefan Monnier
2009-02-21 22:33 ` Eli Zaretskii
2009-02-21 22:49 ` Stefan Monnier
2009-02-22 4:07 ` Eli Zaretskii
2009-02-27 15:02 ` Eli Zaretskii
2009-02-27 22:18 ` Eli Zaretskii
2009-02-27 23:21 ` Glenn Morris
2009-02-28 11:12 ` Eli Zaretskii
2009-02-28 4:48 ` Stefan Monnier
2009-02-28 10:41 ` Eli Zaretskii
2009-02-28 22:06 ` Stefan Monnier
2009-02-28 22:11 ` Eli Zaretskii
2009-05-01 19:07 ` Eli Zaretskii
2011-09-11 21:12 ` Lars Magne Ingebrigtsen
2011-09-11 21:50 ` Chong Yidong
2014-06-27 0:42 ` Glenn Morris
2014-06-27 5:55 ` Eli Zaretskii
2009-02-22 18:19 ` Kevin Rodgers
2009-02-02 21:25 ` Magnus Henoch [this message]
2009-02-02 21:55 ` Eli Zaretskii
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