Re: cjdns with gcc-10 in Fedora
On Wed, 2020-01-22 at 16:11 -0700, Jeff Law wrote:
On Wed, 2020-01-22 at 22:03 +0000, devel-
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> Today's Topics:
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> 1. Re: gcc 10: Default to -fno-common, multiple definitions of ...
> (Stephen John Smoogen)
> 2. Re: gcc 10: Default to -fno-common, multiple definitions of ...
> (Christoph Junghans)
> 3. Re: gcc 10: Default to -fno-common, multiple definitions of ...
> (Fabio Valentini)
> 4. Re: gcc 10: Default to -fno-common, multiple definitions of ...
> (Michael Cronenworth)
> 5. Orphaning argyllcms (Richard Hughes)
>
>
> ----------------------------------------------------------------------
>
> Date: Wed, 22 Jan 2020 15:30:45 -0500
> From: Stephen John Smoogen <smooge(a)gmail.com>
> Subject: Re: gcc 10: Default to -fno-common, multiple definitions of
> ...
> To: Development discussions related to Fedora
> <devel(a)lists.fedoraproject.org>
> Message-ID:
> <CANnLRdgU0wYBiwtZwFFWF2FKsy0JX8pMpe+3PMKEkWWw5f0LXw(a)mail.gmail.com>
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> On Wed, 22 Jan 2020 at 14:54, Christoph Junghans <junghans(a)votca.org> wrote:
> > On Wed, Jan 22, 2020 at 4:42 AM Miro Hrončok <mhroncok(a)redhat.com>
wrote:
> > > jtaylor netsniff-ng ocaml-lablgtk suricata
> > > junghans gasnet
> >
> > Sorry, how do I install gcc10 on Rawhide?
> > "dnf upgrade --advisory=FEDORA-2020-a165791b6f" doesn't seem to
do it.
> >
> > Christoph
> >
>
> Going from a similar discussion in #fedora-devel. There has been no
> current compose of rawhide so it can not be synced out of the mirror.
> In order to upgrade/install gcc10 you will need to enable the local
> repo in mock or replicate it on your system.
>
> 2020-01-21 18:33:05 <sdgathman> fedora-32 is still at gcc-9.2.1, but I got an
em
> ail saying cjdns no longer builds with gcc-10. How do I rebuild with gcc-10 to
> get this fixed? I assume the goal is to get most packages ready for gcc-10 befo
> re upgrading rawhide.
> 2020-01-21 18:58:03 <nirik> sdgathman: rawhide/f32 already has gcc-10...
the
> re just hasn't been a successfull rawhide compose syncing it out to mirrors.
You
> can do scratch builds or you could enable the 'local' repo in mock to use
the k
> oji buildroot...
Note that cjdns, according to my tester, is building fine with gcc-10
with and without LTO enabled as Jan 18th.
I know there was a bug in GCC that Martin Sebor fixed on Jan 13th that
caused gcc-10 to issue a false positive out of bounds array index
warning that in turn caused cjdns to fail.
Actually, I spoke with Martin today.
THe patch wasn't committed as
Jakub raised some concerns. So, yes, this issue is still a concern.
jeff
ps. My tester has Martin's patch, which explains why it's working...