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From: Andrey Savchenko <bircoph@altlinux.org>
To: ALT Linux Team development discussions <devel@lists.altlinux.org>
Subject: Re: [devel] I: GCC >= 10 defaults to -fno-common
Date: Fri, 4 Dec 2020 12:35:31 +0300
Message-ID: <20201204123531.47d2866582c453741826e720@altlinux.org> (raw)
In-Reply-To: <20201203151448.GA13112@altlinux.org>

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On Thu, 3 Dec 2020 18:14:48 +0300 Dmitry V. Levin wrote:
> Hi,
> 
> В связи с предстоящим обновлением GCC в Сизифе, которое будет анонсировано
> отдельно, я бы хотел обратить внимание на одно существенное изменение
> в поведении GCC по умолчанию[1][2], начиная с версии 10:
> 
> "GCC now defaults to -fno-common.  As a result, global variable accesses
> are more efficient on various targets.  In C, global variables with
> multiple tentative definitions now result in linker errors.
> With -fcommon such definitions are silently merged during linking."
[...]
> i7z-93.20131013-alt1	bircoph @everybody

Исправлено. Патч из Debian (хотя там тривиально, но зачем
повторять уже сделанную работу).

Best regards,
Andrew Savchenko

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  parent reply	other threads:[~2020-12-04  9:35 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-03 15:14 Dmitry V. Levin
2020-12-03 15:35 ` Alexey Gladkov
2020-12-03 15:37   ` Dmitry V. Levin
2020-12-03 17:38     ` Vladimir D. Seleznev
2020-12-03 17:54       ` Dmitry V. Levin
2020-12-03 18:24         ` Vladimir D. Seleznev
2020-12-04  1:21           ` Andrey Savchenko
2020-12-04 10:15             ` Vladimir D. Seleznev
2020-12-04 10:18               ` Aleksei Nikiforov
2020-12-04 10:32                 ` Vladimir D. Seleznev
2020-12-04 10:35                 ` Andrey Savchenko
2020-12-03 15:42 ` Denis Medvedev
2020-12-03 15:52   ` Dmitry V. Levin
2020-12-04  9:43     ` Andrey Savchenko
2020-12-03 17:54 ` Sergey Y. Afonin
2020-12-03 20:30   ` Anton Gorlov
2021-02-17 16:06   ` Sergey Y. Afonin
2021-02-17 18:13     ` Alexey V. Vissarionov
2020-12-03 20:49 ` Michael Shigorin
2020-12-03 21:52   ` Michael Shigorin
2020-12-03 22:14     ` Dmitry V. Levin
2020-12-04  1:05   ` Andrey Savchenko
2020-12-04  8:21     ` Sergey V Turchin
2020-12-04  8:43       ` Andrey Savchenko
2020-12-04  8:47         ` Sergey V Turchin
2020-12-03 23:29 ` Leonid Krivoshein
2020-12-03 23:39   ` Dmitry V. Levin
2020-12-03 23:45     ` Leonid Krivoshein
2020-12-04  9:35 ` Andrey Savchenko [this message]
2020-12-07 12:07 ` Aleksei Nikiforov

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