[DRE-maint] Bug#996724: ruby3.0: FTBFS on ppc64el: Segmentation fault

[Antonio Terceiro]

Control: reopen -1
Control: retitle -1 ruby3.0: Segmentation fault on ppc64el when compiled with gcc-11
Control: severity -1 important

Hi,

On Sat, Oct 30, 2021 at 08:50:10AM +0200, Lucas Nussbaum wrote:
> Hi,
> 
> On 30/10/21 at 00:13 +0200, Lucas Nussbaum wrote:
> > Hi,
> > 
> > ruby 3.0 3.0.2-4:
> > - builds fine in Debian stable
> > - fails in unstable
> > - builds fine in unstable snapshotted on 20210930T210616Z
> > - fails in unstable snapshotted on 20211014T215029Z
> 
> I confirm that this is due to the switch from GCC 10 to GCC 11 in
> gcc-defaults.
> I wonder if this should be tracked separately and investigated, as it's
> either a miscompilation issue in GCC 11, or a bug in Ruby 3.0...

Yes. I think for now we can just reopen this bug.

It would be nice to have a simpler/faster reproducer. but for now that
is "revert the changes in 3.0.2-5 and do a build".
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