From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
To: buildroot@busybox.net
Subject: [Buildroot] [PATCH v2 2/3] package: fix generic extract target for top-level parallel make
Date: Fri, 23 Aug 2013 13:14:41 +0200 [thread overview]
Message-ID: <20130823131441.313e63fa@skate> (raw)
In-Reply-To: <CAHkwnC9tn=zA=WWxneiZeGCCxQ=b_Dfk-o_PBaf_AGBHeJWewg@mail.gmail.com>
Dear Fabio Porcedda,
On Fri, 23 Aug 2013 10:00:33 +0200, Fabio Porcedda wrote:
> > When I did some experiments on top-level parallel build some years ago,
> > it is also one of the problem I had seen. Today, if you decide to
> > rebuild "libfoo", it rebuilds libfoo only and that's it. If libfoo is
> > used by something else, it's your responsibility to rebuild this
> > something else. Of course, this is all possible because the chain of
> > dependencies uses virtual targets and not stamp files.
>
> For this problem there is a simple solution, to use a
> "order-only-prerequisites", because
> a target is not rebuild if is older than a "order-only-prerequisites".
>
> http://www.gnu.org/software/make/manual/html_node/Prerequisite-Types.html#Prerequisite-Types
Ah, yes, indeed!
Thanks,
Thomas
--
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com
next prev parent reply other threads:[~2013-08-23 11:14 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-18 9:12 [Buildroot] [PATCH v2 0/3] Fix for top-level parallel make part 1 Fabio Porcedda
2013-07-18 9:12 ` [Buildroot] [PATCH v2 1/3] package/Makefile.in: add a way to don't force jobs in sub-make Fabio Porcedda
2013-08-21 19:17 ` Arnout Vandecappelle
2013-07-18 9:12 ` [Buildroot] [PATCH v2 2/3] package: fix generic extract target for top-level parallel make Fabio Porcedda
2013-08-21 19:24 ` Arnout Vandecappelle
2013-08-22 7:44 ` Fabio Porcedda
2013-08-22 15:59 ` Arnout Vandecappelle
2013-08-23 11:31 ` Fabio Porcedda
2013-08-26 8:29 ` Fabio Porcedda
2013-08-27 6:01 ` Arnout Vandecappelle
2013-08-28 8:26 ` Fabio Porcedda
2013-08-23 7:36 ` Thomas Petazzoni
2013-08-23 8:00 ` Fabio Porcedda
2013-08-23 11:14 ` Thomas Petazzoni [this message]
2013-07-18 9:12 ` [Buildroot] [PATCH v2 3/3] package: fix generic patch " Fabio Porcedda
2013-07-18 9:38 ` [Buildroot] [PATCH v2 0/3] Fix for top-level parallel make part 1 Thomas Petazzoni
2013-07-19 15:41 ` Fabio Porcedda
2013-07-27 11:18 ` Thomas Petazzoni
2013-07-30 9:34 ` Fabio Porcedda
2013-07-30 10:01 ` Thomas Petazzoni
2013-07-30 10:16 ` Fabio Porcedda
2013-07-30 11:29 ` Thomas Petazzoni
2013-08-12 16:48 ` Arnout Vandecappelle
2013-08-20 12:14 ` Fabio Porcedda
2013-08-20 17:35 ` Arnout Vandecappelle
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