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From: Ken Brown <kbrown@cornell.edu>
To: cygwin-apps@cygwin.com
Subject: Re: Heads up: Problems with parallel make
Date: Mon, 13 Feb 2023 19:38:05 -0500	[thread overview]
Message-ID: <aa44c3ba-5c0f-5bc1-0f1b-33c26302f261@cornell.edu> (raw)
In-Reply-To: <871214fe-aa00-5c51-7145-82737e830fcc@Shaw.ca>

On 2/13/2023 6:44 PM, Brian Inglis wrote:
> On 2023-02-13 16:05, Ken Brown via Cygwin-apps wrote:
>> Several of my packages that used to build fine with parallel make now 
>> require 'make -j1'.  Without this I either get strange errors or a hang.
>> I can't find any pattern to explain when the problem occurs and when 
>> it doesn't, but it seems to be due to a change in make, starting with 
>> version 4.4.  By default, make now uses a FIFO rather than a pipe in 
>> its jobserver implementation.  You can override this with the make flag
>>    --jobserver-style=pipe
>> In all cases where I've tried this, parallel make works again.
>> It wouldn't surprise me if there's a bug in Cygwin's FIFO 
>> implementation that's responsible for this, but I haven't yet tried to 
>> track it down.
> 
> There is some glibc? compatibility issue also with this recommended 
> workaround.

Could you elaborate?  I don't know what issue you're seeing.

Ken

  reply	other threads:[~2023-02-14  0:38 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-02-13 23:05 Ken Brown
2023-02-13 23:44 ` Brian Inglis
2023-02-14  0:38   ` Ken Brown [this message]
2023-02-14 16:49     ` Brian Inglis
2023-02-14 21:23       ` Marco Atzeri
2023-02-15 18:09         ` Ken Brown
2023-02-16  7:47           ` Marco Atzeri
2023-02-16 16:49             ` Brian Inglis
2023-02-16 18:57               ` Marco Atzeri
2023-02-16 22:48                 ` Brian Inglis
2023-02-17  2:21             ` Ken Brown
2023-02-19 22:50               ` Ken Brown
2023-02-20 17:00               ` Achim Gratz
2023-02-20 17:14                 ` Ken Brown
2023-02-20 17:34                   ` Marco Atzeri
2023-02-20 19:12                     ` Marco Atzeri
2023-02-20 19:45                       ` Ken Brown
2023-02-20 22:00                       ` Ken Brown
2023-02-20 23:29                         ` Ken Brown
2023-02-21  0:48                           ` Ken Brown
2023-02-27 21:41                             ` Brian Inglis
2023-02-27 22:45                               ` Ken Brown
2023-03-02  6:32                                 ` Marco Atzeri
2023-02-20 17:35                   ` Brian Inglis
2023-02-14  2:33 ` Ken Brown

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