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Re: [bug #60774] make hangs on fcntl lock when using -O and stdout is /d

From: Dmitry Goncharov
Subject: Re: [bug #60774] make hangs on fcntl lock when using -O and stdout is /dev/null
Date: Sat, 24 Jul 2021 14:09:44 -0400

On Saturday, July 24, 2021, Eli Zaretskii <INVALID.NOREPLY@gnu.org> wrote:
Follow-up Comment #5, bug #60774 (project make):

The MS-Windows port of GNU Make doesn't lock stdout (or any other standard
device).  Instead, it uses a mutex to synchronize output.  So I think this
problem cannot happen on Windows.


But I see that your changeset touches quite a few places in the code which is
Windows specific, and I wonder why did you have to do that, since the problem
you are trying to fix doesn't exist there.  Wouldn't it be more prudent to
leave the Windows-only code alone?

The windows code, which passes down the semaphore to children is reused to pass down the fd on unix. If we leave it alone, we'd have to duplicate the mechanism on unix.

Regards, Dmitry

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