From: Stefan Monnier <monnier@IRO.UMontreal.CA>
To: Eli Zaretskii <eliz@gnu.org>
Cc: Andreas Schwab <schwab@linux-m68k.org>, rms@gnu.org, emacs-devel@gnu.org
Subject: Re: Annoyingly cautious make rules
Date: Fri, 02 Dec 2011 11:14:03 -0500 [thread overview]
Message-ID: <jwviplz7y4o.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <83ehwnc97k.fsf@gnu.org> (Eli Zaretskii's message of "Fri, 02 Dec 2011 16:57:35 +0200")
>> > The cache used to be enabled automatically. How do you enable it now?
>> $ ./configure --help
>> [...]
>> --cache-file=FILE cache test results in FILE [disabled]
>> -C, --config-cache alias for `--cache-file=config.cache'
>> [...]
> Why is the default OFF?
IIUC it's because the expectation is that it's not run very often and
that current machines are fast enough to make it bearable, the advantage
being that when you "aptitude upgrade" you won't waste your time
wondering why configure does not notice that your libjpeg62 doesn't
exist any more and how to coerce configure into doing its job
(i.e. find out that you need to remove the config.cache that you'd
never heard of).
I.e. the problem of autoconf's cache is that there's no automatic way to
discover when it's stale.
Stefan
next prev parent reply other threads:[~2011-12-02 16:14 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-30 21:48 Annoyingly cautious make rules Richard Stallman
2011-11-30 22:00 ` Paul Eggert
2011-12-01 21:54 ` Richard Stallman
2011-12-02 1:35 ` Stefan Monnier
2011-12-02 10:00 ` Paul Eggert
2011-12-01 3:54 ` Eli Zaretskii
2011-12-01 8:50 ` Andreas Schwab
2011-12-02 12:05 ` Richard Stallman
2011-12-02 12:11 ` Andy Wingo
2011-12-02 12:13 ` Andreas Schwab
2011-12-02 14:57 ` Eli Zaretskii
2011-12-02 15:05 ` Andreas Schwab
2011-12-02 15:41 ` Eli Zaretskii
2011-12-03 9:23 ` Richard Stallman
2011-12-02 16:14 ` Stefan Monnier [this message]
2011-12-02 16:24 ` Eli Zaretskii
2011-12-02 18:24 ` Paul Eggert
2011-12-02 18:39 ` Glenn Morris
2011-12-02 20:21 ` Paul Eggert
2011-12-02 20:36 ` Stefan Monnier
2011-12-02 21:29 ` Paul Eggert
2011-12-02 23:26 ` Stefan Monnier
2011-12-03 0:34 ` Andreas Schwab
2011-12-03 2:52 ` Paul Eggert
2011-12-03 3:42 ` Stefan Monnier
2011-12-03 3:55 ` Paul Eggert
2011-12-03 5:48 ` Stefan Monnier
2011-12-03 6:35 ` Paul Eggert
2011-12-03 8:49 ` Andreas Schwab
2011-12-03 20:15 ` Paul Eggert
2011-12-03 20:29 ` Andreas Schwab
2011-12-03 20:42 ` Glenn Morris
2011-12-04 15:04 ` Richard Stallman
2011-12-04 16:55 ` Stefan Monnier
2011-12-04 18:57 ` Paul Eggert
2011-12-05 2:53 ` Glenn Morris
2011-12-03 6:45 ` Eli Zaretskii
2011-12-03 20:23 ` Paul Eggert
2011-12-03 4:52 ` Stephen J. Turnbull
2011-12-03 20:34 ` Paul Eggert
2011-12-03 9:23 ` Richard Stallman
2011-12-03 4:26 ` Stephen J. Turnbull
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