Blog:
http://blogs.perl.org/users/sawyer_x/2015/11/perl-5-porters-mailing-list-summary-november-10th-15th.html
Twitter: https://twitter.com/perl5summaries/status/666178474579771393
November 10th-15th
Updates
Steve Hay has [1]released Perl 5.22.1-RC1!
The hoary frost has a white sheen Strewn all over my hair, So I thought
I was an old man And thought life dealt me fair.
Yet soon was thawed my old white mane, And I have my black hair again.
How I abhor my young fair years, How long to wait for death and biers?
From setting sun to morning's hue Many a head turns white. Who'll
credit
it? My hair did not In all this lifelong plight!
-- Wilhelm Müller, trans. Anon., "The Old Head" (No. 14 in Schubert's
song-cycle, "Winterreise")
Aaron Crane has updated [2]Perl #119437 on the status of the implicit
dereference in push to a reference as an unsuccessful experiment.
[3]ExtUtils::MakeMaker released a new version which reverted many
changes,
including a commit by Sisyphus to build when sh.exe is in the path (but
following cmd.exe) and several changes by mohawk. Therefore, both
Sisyphus
and Bulk88 resubmitted the "lost" patches to include in EUMM
(ExtUtils::MakeMaker).
Tony Cook [4]provides another grant report. About 16 hours spent, 13
tickets reviewed or worked on, and 5 patches applied.
Dave Mitchell had merged his fast arithmetic branch. Expect even faster
basic arithmetic in the next perl version! You can read more about it in
his grant report mentioned below.
Dave [5]provides a grant report. 98:49 total hours. He worked mainly on
the aforementioned arithmetic optimizations and the overhaul of the perl
context stack and dynamic scope implementation.
Dave also mentioned he [6]applied for an extension of his Perl core
grant.
The Perl Foundation is looking for comments. If you want to show
appreciation (other than a thank-you email to p5p and/or Dave), you can
provide comments on the grant extension request.
Ricardo Signes is making a few CPAN releases ([7]PathTools and
[8]base) in
order to fix the installation path on perl 5.12 and above.
Ricardo [9]wants to remove [10]encoding.pm. He asks about any blockers.
Ed Avis noticed the docs sometimes use lookahead and sometimes look-ahead
(with or without a hyphen) and provided a patch to solve it in [11]Perl
#126608. Tony Cook provided additional comments.
[12]Module::Metadata is passing several TODO tests, adding more output to
the build process. Karen Etheridge updates it will be resolved soon.
Mohammed El-Afifi provided a patch in [13]Perl #126611 for [14]File::Find
to prevent death in case an empty array is provided.
Dagfinn Ilmari Mannsåker provided a patch in [15]Perl #126609 to include
the error message when [16]IPC::Open3 fails. It was applied by Tony Cook.
Bulk88 submitted patches in [17]Perl #126632 (which he intends to revise
further) to add parallelness to Win32/GNUmakefile.
Bugs
Reported bugs
[18]Perl #126602, reported by Brian Carpenter, is a fuzzer-found
double-free segfault caused by the code:
s//*_=0;s|0||;00.y0/e
Tony Cook debugged and provided submitted a patch for review.
[19]Perl #126613, reported by Dan Collins, also found by a fuzzer, causes
a segfault with the code:
/(?{s0})|(?{s0:})/|s|||eg|y|||
[20]Perl #126614, reported by Dan as well by fuzzing, segfaults with:
/(?{})|(??{U:0})/|s|||g
[21]Perl #126615, another fuzzer-discovered fuzzer by Dan with the code:
00./(?[[0]+()+])/
This was already fixed by Karl Williamson.
Andreas J. Koenig opened several tickets for bleadperl breaking the
following modules:
* [22]Perl #126621 breaking [23]Tie::DBIx::Class.
* [24]Perl #126633 breaking [25]ddb.
* [26]Perl #126635: breaking [27]Data::Integer.
* [28]Perl #126637: breaking [29]Data::Rmap.
Resolved bugs
* [30]Perl #126600: Update perlexperiment for removal of lexical topic
and autoderef.
* [31]Perl #124080: DEBUGGING versions of the MARK macros to display
arity of op and function calls.
* [32]Perl #124068: Various improvements to [33]DynaLoader.
* [34]Perl #124069: [35]XSLoader improvement.
* [36]Perl #126325: Segmentation fault in pack.
* [37]Perl #126179: Rejected regression report with \N{}.
Discussion
The ticket [38]Perl #126602 sparked a response from Zefram on a slew of
problems with stack refcounting. He [39]proposes a way to handle them
which will require some major overhauls. Dave Mitchell [40]proposes
another way which wouldn't require the same amount of work and might
prevent breakage in API.
A breakage caused by a [41]commit which required a version number bump
raised a [42]rant by Jarkko Hietaniemi on tests which require such
version
bumps which conflict with how one might run tests. The thread continues
[43]here.
Jarkko also [44]mentioned a Python change suggestion to provide a faster
directory iterator. This also evolved into a conversation on the stat
caching feature.
Steve Hay [45]suggests maintenance releases should also include
back-ported fixes to features introduced in those stable releases. Aaron
Crane provided a patch to address this in the policy.
Peter John Acklam [46]wondered about results when working with infinite
numbers and exponents. Additional details provided by Sisyphus and Glenn
Golden, it would appear that the computing part of these operations were
marked as contentious by IEEE during the early 754-2008 process.
References
1. http://www.nntp.perl.org/group/perl.perl5.porters/232632
2. https://rt.perl.org/Ticket/Display.html?id=119437
3. https://metacpan.org/pod/ExtUtils::MakeMaker
4. http://www.nntp.perl.org/group/perl.perl5.porters/232524
5. http://www.nntp.perl.org/group/perl.perl5.porters/232534
6. http://news.perlfoundation.org/2015/11/grant-extension-request-1.html
7. https://metacpan.org/pod/PathTools
8. https://metacpan.org/pod/base
9. http://www.nntp.perl.org/group/perl.perl5.porters/232608
10. https://metacpan.org/pod/encoding
11. https://rt.perl.org/Ticket/Display.html?id=126608
12. https://metacpan.org/pod/Module::Metadata
13. https://rt.perl.org/Ticket/Display.html?id=126611
14. https://metacpan.org/pod/File::Find
15. https://rt.perl.org/Ticket/Display.html?id=126609
16. https://metacpan.org/pod/IPC::Open3
17. https://rt.perl.org/Ticket/Display.html?id=126632
18. https://rt.perl.org/Ticket/Display.html?id=126602
19. https://rt.perl.org/Ticket/Display.html?id=126613
20. https://rt.perl.org/Ticket/Display.html?id=126614
21. https://rt.perl.org/Ticket/Display.html?id=126615
22. https://rt.perl.org/Ticket/Display.html?id=126621
23. https://metacpan.org/pod/Tie::DBIx::Class
24. https://rt.perl.org/Ticket/Display.html?id=126633
25. https://metacpan.org/pod/ddb
26. https://rt.perl.org/Ticket/Display.html?id=126635
27. https://metacpan.org/pod/Data::Integer
28. https://rt.perl.org/Ticket/Display.html?id=126637
29. https://metacpan.org/pod/Data::Rmap
30. https://rt.perl.org/Ticket/Display.html?id=126600
31. https://rt.perl.org/Ticket/Display.html?id=124080
32. https://rt.perl.org/Ticket/Display.html?id=124068
33. https://metacpan.org/pod/DynLoader
34. https://rt.perl.org/Ticket/Display.html?id=124069
35. https://metacpan.org/pod/XSLoeader
36. https://rt.perl.org/Ticket/Display.html?id=126325
37. https://rt.perl.org/Ticket/Display.html?id=126179
38. https://rt.perl.org/Ticket/Display.html?id=126602
39. http://www.nntp.perl.org/group/perl.perl5.porters/232508
40. http://www.nntp.perl.org/group/perl.perl5.porters/232510
41. http://www.nntp.perl.org/group/perl.perl5.porters/232612
42. http://www.nntp.perl.org/group/perl.perl5.porters/232613
43. http://www.nntp.perl.org/group/perl.perl5.porters/232630
44. http://www.nntp.perl.org/group/perl.perl5.porters/232553
45. http://www.nntp.perl.org/group/perl.perl5.porters/232615
46. http://www.nntp.perl.org/group/perl.perl5.porters/232594
