From: David Bremner <david@tethera.net>
To: Austin Clements <amdragon@MIT.EDU>, notmuch@notmuchmail.org
Cc: tomi.ollila@iki.fi
Subject: Re: [PATCH] emacs: Avoid rebuilding .eldeps even when there's nothing to do
Date: Fri, 21 Feb 2014 21:21:36 -0400 [thread overview]
Message-ID: <878ut4x7q7.fsf@zancas.localnet> (raw)
In-Reply-To: <1392870264-11156-1-git-send-email-amdragon@mit.edu>
Austin Clements <amdragon@MIT.EDU> writes:
> Previously, we updated .eldeps only if the file contents actually
> needed to change. This was done to avoid unnecessary make restarts
> (if the .eldeps rule changes the mtime of .eldeps, make has to restart
> to collect the new dependencies). However, this meant that, after a
> modification to any .el file that did not change dependencies, .eldeps
> would always be out of date, so every make invocation would run the
> .eldeps rule, which is both expensive because it starts up Emacs and
> noisy. This was true even when there was nothing to do. E.g.,
>
pushed.
d
prev parent reply other threads:[~2014-02-22 1:21 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-25 10:21 [PATCH 1/1] emacs: always write emacs/.eldeps when the target is remade Tomi Ollila
2014-02-13 7:10 ` Austin Clements
2014-02-13 7:26 ` Tomi Ollila
2014-02-13 7:49 ` Austin Clements
2014-02-14 19:24 ` Tomi Ollila
2014-02-14 21:58 ` Austin Clements
2014-02-19 19:54 ` Austin Clements
2014-02-19 20:47 ` Tomi Ollila
2014-02-20 4:24 ` [PATCH] emacs: Avoid rebuilding .eldeps even when there's nothing to do Austin Clements
2014-02-20 17:00 ` Tomi Ollila
2014-02-22 1:21 ` David Bremner [this message]
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