From: Aleksei Nikiforov <darktemplar@altlinux.org> To: devel@lists.altlinux.org Subject: Re: [devel] I: GCC >= 10 defaults to -fno-common Date: Mon, 7 Dec 2020 15:07:31 +0300 Message-ID: <c99ec3fb-f2b0-12ec-573f-d23a74dcff00@altlinux.org> (raw) In-Reply-To: <20201203151448.GA13112@altlinux.org> 03.12.2020 18:14, Dmitry V. Levin пишет: > 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." > > В Сизифе около 400 пакетов, которые не готовы к этому изменению в GCC. > При попытке собрать эти пакеты происходит ошибка, сопровождающаяся > характерной диагностикой в логе сборки, например: > > /usr/bin/ld.default: CMakeFiles/genisoimage.dir/checksum.o:/usr/src/RPM/BUILD/cdrkit-1.1.11/genisoimage/genisoimage.h:379: multiple definition of `outfile'; CMakeFiles/genisoimage.dir/genisoimage.o:/usr/src/RPM/BUILD/cdrkit-1.1.11/genisoimage/genisoimage.h:379: first defined here > > Как правило, эта ошибка сборки - признак того, что пакет заброшен > или форкнут. Вот список всех таких пакетов: > > aircrack-ng-1.6-alt1 darktemplar @everybody > libcf-mpi-1.0-alt2.beta1.2011092223.1 darktemplar @everybody > libowfat-0.31-alt1 darktemplar @everybody > megaglest-3.13.0-alt1 darktemplar @everybody > passivedns-1.2.1-alt1 darktemplar @everybody > pax-3.4-alt8 darktemplar @everybody > perftest-4.4-alt1 darktemplar @everybody > qstat-2.14-alt1.85fbecb darktemplar @everybody > sipsak-0.9.7-alt1 darktemplar @everybody > warsow-2.1.2-alt1 darktemplar @everybody > wput-0.6.1-alt1 darktemplar @everybody В данных пакетах проблема сборки с опцией -fno-common должна быть исправлена. > > [1] https://gcc.gnu.org/gcc-10/porting_to.html#common > [2] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85678 > >
prev parent reply other threads:[~2020-12-07 12:07 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 2020-12-07 12:07 ` Aleksei Nikiforov [this message]
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=c99ec3fb-f2b0-12ec-573f-d23a74dcff00@altlinux.org \ --to=darktemplar@altlinux.org \ --cc=devel@lists.altlinux.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: link
ALT Linux Team development discussions This inbox may be cloned and mirrored by anyone: git clone --mirror http://lore.altlinux.org/devel/0 devel/git/0.git # If you have public-inbox 1.1+ installed, you may # initialize and index your mirror using the following commands: public-inbox-init -V2 devel devel/ http://lore.altlinux.org/devel \ devel@altlinux.org devel@altlinux.ru devel@lists.altlinux.org devel@lists.altlinux.ru devel@linux.iplabs.ru mandrake-russian@linuxteam.iplabs.ru sisyphus@linuxteam.iplabs.ru public-inbox-index devel Example config snippet for mirrors. Newsgroup available over NNTP: nntp://lore.altlinux.org/org.altlinux.lists.devel AGPL code for this site: git clone https://public-inbox.org/public-inbox.git