From: Paul Eggert <eggert@cs.ucla.edu>
To: Alex Gramiak <agrambot@gmail.com>
Cc: emacs-devel@gnu.org
Subject: Re: [PATCH] * configure.ac: Avoid gnulib's test for pthread_sigmask
Date: Thu, 2 May 2019 17:42:28 -0700 [thread overview]
Message-ID: <c11764d0-175e-ae2c-ff8d-a0a28a4d8cc5@cs.ucla.edu> (raw)
In-Reply-To: <8736lwmp2h.fsf@gmail.com>
On 5/2/19 4:09 PM, Alex Gramiak wrote:
> The nearby comment states "Avoid gnulib's test for pthread_sigmask", but
> the method used doesn't seem to work.
>
> What I see is that gl_INIT is called, which calls
> gl_FUNC_PTHREAD_SIGMASK.
It what sense is it not working? gl_FUNC_PTHREAD_SIGMASK is not the same
as "gnulib's test for pthread_sigmask", so the comment is not
contradicted by the fact that gl_INIT calls gl_FUNC_PTHREAD_SIGMASK. The
latter macro does some useful sanity checking on platforms where
pthread_sigmask exists but doesn't do anything, e.g., on Solaris 11
Update 3 or older if you don't define _REENTRANT then Emacs's pthreaded
code will likely fail in subtle ways (see
<https://blogs.oracle.com/solaris/mtreentrant-v2>).
next prev parent reply other threads:[~2019-05-03 0:42 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-02 23:09 [PATCH] * configure.ac: Avoid gnulib's test for pthread_sigmask Alex Gramiak
2019-05-03 0:42 ` Paul Eggert [this message]
2019-05-03 5:48 ` Alex Gramiak
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