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From: Jonathan Wakely <jwakely@redhat.com>
To: Jonathan Wakely <jwakely.gcc@gmail.com>
Cc: Iain Sandoe <idsandoe@googlemail.com>,
	libstdc++ <libstdc++@gcc.gnu.org>,
	GCC Patches <gcc-patches@gcc.gnu.org>,
	David Edelsohn <dje.gcc@gmail.com>
Subject: Re: [PATCH] libstdc++: Add C++2a synchronization support
Date: Mon, 23 Nov 2020 18:31:20 +0000	[thread overview]
Message-ID: <20201123183120.GX1312820@redhat.com> (raw)
In-Reply-To: <CAH6eHdTvuG6x31LtB3-+fYqD2+f18rZca9-_FrgxDDj7q30Z4g@mail.gmail.com>

On 22/11/20 13:37 +0000, Jonathan Wakely via Libstdc++ wrote:
>On Sun, 22 Nov 2020, 12:29 Iain Sandoe, <idsandoe@googlemail.com> wrote:
>
>> thanks for looking at this over the weekend.
>>
>> Jonathan Wakely via Gcc-patches <gcc-patches@gcc.gnu.org> wrote:
>>
>> > On Sat, 21 Nov 2020 at 23:55, David Edelsohn via Libstdc++
>> > <libstdc++@gcc.gnu.org> wrote:
>> >> I am seeing 93 new libstdc++ failures on AIX, even after Jonathan's
>> >> fixes.  And a few c++ failures with similar symptoms.  I'm not certain
>> >> that it is due to this patch, but it's the likely suspect.
>> > Yes, it's that patch.
>> >
>> > This should fix most of those errors, but I haven't finished testing
>> > it, and can't commit it now anyway.
>> > <patch.txt>
>>
>> with r11-5235 + this patch there are still quite a few fails on Darwin -
>> but
>> all seem to be the same ( so maybe only problem ;) ):
>>   “sem_timedwait was not declared in this scope”.
>>
>> It looks like the semaphore header is optional in SUSv3 (AFAIK that’s still
>> the claimed edition for Darwin) - and although Darwin has the semaphore
>> header, it doesn’t seem to have an impl. of sem_timedwait.
>>
>> just:
>> int sem_trywait(sem_t *);
>> int sem_wait(sem_t *) ;
>>
>
>
>It probably depends on the _POSIX_TIMEOUTS option which MacOS doesn't
>support (optional in POSIX 2001, but not 2008).

Hopefully this fixes it, but I haven't tested it on darwin, only
linux, aix and solaris.

Committed.



  reply	other threads:[~2020-11-23 18:31 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-21 23:54 David Edelsohn
2020-11-22  1:27 ` Jonathan Wakely
2020-11-22 12:29   ` Iain Sandoe
2020-11-22 13:37     ` Jonathan Wakely
2020-11-23 18:31       ` Jonathan Wakely [this message]
2020-11-23 18:31         ` Jonathan Wakely
2020-11-24  1:48         ` David Edelsohn
2020-11-23 18:30   ` Jonathan Wakely
  -- strict thread matches above, loose matches on Subject: below --
2020-10-23 10:28 [PATCH] t/trodgers/c2a_synchronization Jonathan Wakely
2020-10-26 21:48 ` [PATCH] libstdc++: Add C++2a synchronization support Thomas Rodgers
2020-10-27 10:23   ` Jonathan Wakely
2020-11-20 22:44     ` Thomas Rodgers
2020-11-22 21:13       ` Stephan Bergmann
2020-11-23 18:33         ` Jonathan Wakely
2020-11-22 21:41       ` Stephan Bergmann
2020-11-23 18:32         ` Jonathan Wakely
2020-11-21 15:16   ` Andreas Schwab
2020-11-21 17:04     ` Jonathan Wakely
2020-11-21 17:39       ` Jonathan Wakely
2020-11-22  0:36         ` H.J. Lu
2020-11-23 14:50           ` Jonathan Wakely
2020-11-24 23:45           ` Jonathan Wakely
2020-11-25  1:07             ` Jonathan Wakely
2020-11-25 10:35               ` Jonathan Wakely
2020-11-25 12:32                 ` Jonathan Wakely
2020-11-25 18:39                 ` Jonathan Wakely
2020-11-26 16:26                   ` Jonathan Wakely
2020-11-23 16:08         ` Jonathan Wakely
2020-09-03  0:54 [PATCH] " Thomas Rodgers
2020-09-11 23:58 ` [PATCH] libstdc++: " Thomas Rodgers
2020-09-28 13:25   ` Jonathan Wakely
2020-10-01 23:37     ` Thomas Rodgers
2020-10-02 15:40       ` Thomas Rodgers
2020-09-28 13:30   ` Jonathan Wakely
2020-09-28 13:36   ` Jonathan Wakely
2020-09-28 21:29     ` Thomas Rodgers
2020-09-29  9:44       ` Jonathan Wakely

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