[Bug 1231165] New: FTFBS: perl-Coro against perl-5.22

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1231165

            Bug ID: 1231165
           Summary: FTFBS: perl-Coro against perl-5.22
           Product: Fedora
           Version: rawhide
         Component: perl-Coro
          Assignee: ppisar(a)redhat.com
          Reporter: nphilipp(a)redhat.com
        QA Contact: extras-qa(a)fedoraproject.org
                CC: mmaslano(a)redhat.com,
                    perl-devel(a)lists.fedoraproject.org, ppisar(a)redhat.com



Description of problem:
I just found that a couple of packages didn't update on my Rawhide machine,
because perl-Coro hasn't been rebuilt against perl-5.22 yet. The rebuild
failed[1], apparently because the module uses perl internals that have changed
between 5.20 and 5.22[2].

[1] http://koji.fedoraproject.org/koji/taskinfo?taskID=9996895
[2] https://groups.google.com/forum/#!topic/perl.perl5.porters/B0YPUPtyOMo

Version-Release number of selected component (if applicable):
perl-Coro-6.43-2.fc23
perl-5.22.0-344.fc23

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[Bug 1231165] FTFBS: perl-Coro against perl-5.22

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1231165

Petr Pisar <ppisar(a)redhat.com&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
                URL|                            |http://www.nntp.perl.org/gr
                   |                            |oup/perl.perl5.porters/2015
                   |                            |/05/msg228257.html
    External Bug ID|                            |CPAN 101063



--- Comment #1 from Petr Pisar <ppisar(a)redhat.com&gt; ---
Thank you for the report. I'm aware about it. There was an opinion to fix perl
instead of Coro on p5p list. However, I don't believe anything of it happens
soon. I recommend you to drop perl(Coro) from your dependencies if you can.

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[Bug 1231165] FTFBS: perl-Coro against perl-5.22

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1231165



--- Comment #2 from Petr Pisar <ppisar(a)redhat.com&gt; ---
Reading the commit that changed  the constness
(c910fead7893fe9700031ee59de6b904260b5d69) and the linked discussion, I think
that reverting the commit would move the data structure from read-only TEXT
segment to BSS/DATA writable segment. Question is if would break ABI or
wouldn't.

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[Bug 1231165] FTFBS: perl-Coro against perl-5.22

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1231165

Jitka Plesnikova <jplesnik(a)redhat.com&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Blocks|                            |1231260




Referenced Bugs:

https://bugzilla.redhat.com/show_bug.cgi?id=1231260
[Bug 1231260] uwsgi-2.0.9-9.fc23: FTBFS with Perl 5.22
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[Bug 1231165] FTFBS: perl-Coro against perl-5.22

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1231165



--- Comment #3 from Petr Pisar <ppisar(a)redhat.com&gt; ---
I will revert the c910fead7893fe9700031ee59de6b904260b5d69 temporarily as it
should not break anything. Only the perl thread RSS will be few kilobytes
larger. I will also apply post-5.22.0 73949fca082fe50bf47755c5ffa328259057ae36
commit which restores another part of API.

These changes will allow perl-Coro to work in Fedora 23. I hope Coro upstream
will develop a fix so we will be able to drop the revert. Otherwise we will
drop Coro.

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[Bug 1231165] FTFBS: perl-Coro against perl-5.22

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1231165

Petr Pisar <ppisar(a)redhat.com&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |CLOSED
   Fixed In Version|                            |perl-Coro-6.43-3.fc23
         Resolution|---                         |RAWHIDE
        Last Closed|                            |2015-06-18 10:08:49



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[Bug 1231165] FTFBS: perl-Coro against perl-5.22

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1231165



--- Comment #4 from Petr Pisar <ppisar(a)redhat.com&gt; ---
Created attachment 1160980
  --> https://bugzilla.redhat.com/attachment.cgi?id=1160980&action=edit
Do not edit Perl's vtable

This is a proposed fix from
<http://www.nntp.perl.org/group/perl.perl5.porters/2016/05/msg236178.html>
thread.

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