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From: Olivier Hainque <hainque@adacore.com>
To: Nathan Sidwell <nathan@acm.org>
Cc: gcc-patches@gcc.gnu.org
Subject: Re: fix libcc1 dependencies in toplevel Makefile
Date: Thu, 15 Jun 2017 12:29:00 -0000	[thread overview]
Message-ID: <E4B30A80-41CF-44ED-AF27-3A915869E2F3@adacore.com> (raw)
In-Reply-To: <9937e0ec-f802-5d26-83cf-922daa3a4024@acm.org>


> On 15 Jun 2017, at 14:03, Nathan Sidwell <nathan@acm.org> wrote:
> 
> On 06/14/2017 01:24 PM, Olivier Hainque wrote:
> 
>>> I'm happy to try the patch.
>> That would bring useful extra datapoints, Thanks!
> 
> I now seem unable to trigger the race with an unpatched source. Sorry

No pb. Thanks for trying.

We were seeing the failures only in pretty specific circumstances (particular
machine & load conditions etc)

The patch remains worth considering IMO. At least, it would be interesting to
get feedback from a build-system maintainer on the correctness of the current
dependencies.

Our understanding is that it is incorrect to have libcc1 depend on
maybe-all-gcc in a bootstrapping setup because it can trigger rebuilds of gcc/
components in parallel with ongoing processing of target components (with
pre-requisites on stage_current only).



  reply	other threads:[~2017-06-15 12:29 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-06-13 12:58 Olivier Hainque
2017-06-14 11:39 ` Nathan Sidwell
2017-06-14 21:11   ` Olivier Hainque
2017-06-15 12:03     ` Nathan Sidwell
2017-06-15 12:29       ` Olivier Hainque [this message]
2017-06-22 12:13 ` Alexandre Oliva
2017-06-26  7:41   ` Olivier Hainque
2017-06-27 16:32     ` Olivier Hainque
2017-06-27 19:53     ` Alexandre Oliva
2017-07-03 21:05       ` Olivier Hainque
2018-06-03 19:13       ` Alexandre Oliva
2018-06-12  2:50         ` Alexandre Oliva
2018-06-12  8:57           ` Olivier Hainque
2018-06-12 15:31           ` Jeff Law
2018-06-26  5:39           ` Alexandre Oliva
2018-06-27 19:53             ` Olivier Hainque

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