From: Ken Brown <kbrown@cornell.edu>
To: cygwin-apps <cygwin-apps@cygwin.com>
Subject: Heads up: Problems with parallel make
Date: Mon, 13 Feb 2023 18:05:20 -0500 [thread overview]
Message-ID: <9c9fb865-5f11-67ec-81a5-9c1ee37b5ee1@cornell.edu> (raw)
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.
Ken
next reply other threads:[~2023-02-13 23:05 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-13 23:05 Ken Brown [this message]
2023-02-13 23:44 ` Brian Inglis
2023-02-14 0:38 ` Ken Brown
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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