Blog:
http://blogs.perl.org/users/sawyer_x/2016/07/perl-5-porters-mailing-list-summary-july-13th-22nd.html
Twitter: https://twitter.com/perl5summaries/status/756537178516234241
July 13th-22nd
News and updates
Perl 5.25.3 is now [1]available!
Perl 5.24.1-RC1 is now [2]available!
Perl 5.22.3-RC1 is now [3]available!
This month Steve Hay is in charge of several releases: 5.22.3,
5.24.1, and
5.25.3. The first two requiring several Release Candidates each. Thanks,
Steve!
Over the past week and a half, Dan Collins kept reducing the number of
open tickets by checking, verifying, and possibly rejecting or providing
patches for some. This is wonderful work which allows us to prune and
clean up the ticket queue and be able to focus on the greater issues.
While he's at it, Dan also opened a bunch of new tickets. Big thanks to
Dan for all the work.
Father Chrysostomos handled various tickets that came up from bits of
cleaning up. He submitted some patches to CPAN modules as well.
Father Chrysostomos also merged a branch to allow escaping on right hand
side of my. Effectively, this allows my \$x as the equivalent to \my $x,
which allows you to write my \$x = \$y in conjunction with refaliasing.
For some background on this, [4]this ([Perl #127531] permit \escape on
right hand side of my) thread.
Matthew Horsfall [5]suggests documenting [6]Devel::PPPort in core to
resolve [7]Perl #54952 (Need place for "how to build old versions of perl
on new platform versions"). If you are looking to do something simple in
core, here's your chance!
An [8]update from Unicode: Unicode Version 9.0 - Complete Text of the
Core
Specification Published.
Dave Mitchell [9]fixed "blead fails to compile on Win32 with Bison 3".
Grant reports
Tony Cook provides his grant reports: [10]#13 (TONYC TPF Grant 7 report
13) and [11]#14 (TONYC TPF Grant 7 report 14).
In total, over 36 hours spent and approximately 19 tickets were reviewed
or worked on, and 4 patches were applied.
Issues
New issues
* [12]Perl #128598: Quadmath builds fail porting/libperl.t.
* [13]Perl #128618: commit "locale.c: Make locale collation predictions
adaptive" causes gt op SIGFPE.
* RT#128621
* [14]Perl #128622: Bleadperl v5.25.2-120-ga15a3d9 breaks
MIROD/XML-DOM-XPath-0.14.tar.gz.
* [15]Perl #128623: Bleadperl around v5.25.2-124-g370579b breaks
GUGOD/Time-Verbal-1.0.0.tar.gz.
* [16]Perl #128627: Quadmath builds fail on Cygwin in ext/POSIX.
* [17]Perl #128629: locale.t on Win32 failing "Verify that strings with
embedded NUL collate" and "Verify that strings with embedded NUL and
extra trailing NUL collate".
* [18]Perl #128630: commit 15899733e changes SKIP to FAIL on Win32 in
op/sprintf\.t.
* [19]Perl #128631: Win32 MinGW build failure.
* [20]Perl #128634: Unexpected: Use of freed value in iteration at ....
* [21]Perl #128637: Configure fails to find four ld functions on Cygwin
because it doesn't want libm or libcygwin.
* [22]Perl #128638: Windows test failure in re/reg_mesg.
* [23]Perl #128639: Windows MinGW test failure in lib/warnings.
* [24]Perl #128643: MinGW.org builds - infnan and pack test
failures due
to LD handling.
* [25]Perl #128645: Windows MinGW test failure in lib/warnings with
USE_64_BIT_INT.
* [26]Perl #128647: Windows MinGW-w64 pointer-integer size mismatch in
extensions.
* [27]Perl #128649: refaliasing kills value on stack.
* [28]Perl #128665: Cygwin: trunc(2.75) is broken somewhere on long
double builds.
* [29]Perl #128670: Out-of-date info on DEBUGGING in perlhacktips,
perlrun.
* [30]Perl #128673: modfl() is horribly broken in MinGW-W64 .
* [31]Perl #128686: invlist_inline.h:40: S__invlist_len: Assertion
fail.
Dan Collins notes that [32]Perl #45265 (stacked declarators
(my/our/state)
shouldn't be legal) is now again working.
Dan opened [33]Perl #128644 to collect portability issues directly
relating to MinGW.org compilers.
Dan also opened [34]Perl #128666 to collect problems with line number
reporting.
A. Sinan Unur [35]notes that testing [36]Config::General consumes a
lot of
memory, leading to out of memory error.
Resolved issues
* [37]Perl #7655: Misleading message in 5.7.2 Configure script.
* [38]Perl #41121: Segmentation fault Running binmode(STDOUT,
":encoding(utf8)") with ithreads.
* [39]Perl #46019: Documentation for srand has a problem in code
snippet.
* [40]Perl #50352: Perl 5.10 Storable extremely slow for large trees of
data.
* [41]Perl #62412: sqrt without EXPR and [42]Math::Complex always 0.
* [43]Perl #63574: funny results from ~ on non-Latin-1 string.
* [44]Perl #66852: Regexp very slow on UTF8 (over 100.000 times slower
than without UTF8).
* [45]Perl #67244: hex "e" misunderstood by [46]Math::BigRat.
* [47]Perl #69208: readline setting $! on success contrary to perlfunc.
* [48]Perl #70690: Multiple bugs in perlbug.
* [49]Perl #85366: Win32 fork and encoding simultaneous usage error.
* [50]Perl #127251: study documentation.
* [51]Perl #127531: Permit \escape on right hand side of my.
* [52]Perl #127921: Possible inconsistency in "perlop" documentation on
precedence of || and //.
* [53]Perl #128170: Assert fail in regcomp.c with no other symptoms:
perl -e '/(?<=/'.
* [54]Perl #128445: [55]Time::HiRes test failure on threaded darwin
build.
* [56]Perl #128524: [57]Data::Dumper gets string lengths wrong when the
utf8 flag is set.
* [58]Perl #128607: POD: sysseek.
* [59]Perl #128618: Commit "locale.c: Make locale collation predictions
adaptive" causes gt op SIGFPE.
* [60]Perl #128630: Commit 15899733e changes SKIP to FAIL on Win32 in
op/sprintf\.t.
* [61]Perl #128669: Inconsistent parsing of parenthesized expressions
involving masked outer variables with local/my.
* [62]Perl #128678: Wish: 'hard assignment' operator.
* [63]Perl #128685: Repeated installs broken in blead.
* [64]Perl #128686: invlist_inline.h:40: S__invlist_len: Assertion
fail.
Rejected issues
* [65]Perl #40234: Installation on Windows.
* [66]Perl #42601: Inconsistent warning of redefined subroutines in
[67]Exporter.
* [68]Perl #56608: [69]Math::BigInt gives completely when
[70]Math::BigInt::GMP is used.
* [71]Perl #61288: Mixing threads and [72]Time::HiRes::ualarm() in
perl5.10.0 on FreeBSD 7 segfaults.
* [73]Perl #61964: sysopen (to create a lockfile) fails with
inappropriate ioctl for device.
* [74]Perl #128605: Make handles themselves remember whether to warn
when closed.
Proposed patches
Dan Collins provided another patch for [75]Perl #128574 (Some tests call
fresh_perl* incorrectly).
Father Chrysostomos provided a [76]patch to [77]XML::DOM::XPath to
support
the change to disable ${^ENCODING}.
[78]B::Hook::Parser and [79]Devel::Declare both have chunks of toke.c
copied, which was changed, and subsequently broke them. A patch was
provided by Father Chrysostomos at [80]Perl #128621 (Bleadperl
v5.25.2-122-g3a69dad breaks ETHER/B-Hooks-Parser-0.16.tar.gz).
Father Chrysostomos also provided a [81]patch for [82]Time::Verbal which
fixes a breakage noted in [83]Perl #128623 (Bleadperl around
v5.25.2-124-g370579b breaks GUGOD/Time-Verbal-1.0.0.tar.gz).
Father Chrysostomos [84]provided a patch for [85]Perl #126041
(miniperl PP
glob/Perl_start_glob() wipes all of %ENV and perlglob.exe proc can't
start
on VC 2005/WinXP).
Achim Gratz provided a patch for [86]Perl #128358 (Cygwin: nm detects
memmem, but headers don't expose it, leading to tests crashing).
Karl Williamson provided patch for [87]Perl #128629 (locale.t on Win32
failing "Verify that strings with embedded NUL collate" and "Verify that
strings with embedded NUL and extra trailing NUL collate").
Dan Collins provided a patch for [88]Perl #67424 (missing / incorrect
overflow check when indexing arrays), currently being discussed with
Zefram and Tony Cook.
Tony Cook provided a patch for [89]Perl #128685 (Repeated installs broken
in blead).
Discussion
There is a conversation going on around [90]Perl #128438 ([Win32] 5.25.2
fails to build in ListUtil.xs) and the possible solutions to it.
Various functions in embed.fnc are marked with an a flag, which is
used by
GCC to optimize. However, as Dave Mitchell [91]notes ('a' (malloc)
flag in
embed.fnc misused?), we're probably misusing the flag on some functions
because they might return pointers to allocated memory which might then
contain pointers in turn - a situation to which the flag does not apply.
Dave would like to clean up the flagging.
There is an interesting [92]discussion around [93]Perl #128598: (Quadmath
builds fail porting/libperl.t), regarding a conflict between optimized
code and a test of an unsafe function. Will the optimizer keep using a
safe version of an unsafe function? Should we make sure we allow a level
of optimizer to optimize this? Should we just avoid the function to avoid
thinking of whether it will be optimized correctly?
Dave Mitchell [94]asks (64-bit array subscript warning test failing)
whether we should skip a test on platforms where the sizeof result of
SSize_t type is smaller than the size of IV. Father Chrysostomos
introduces a commit that skips it.
In a [95]thread I had a hard time following, Father Chrysostomos and
Zefram discuss how to handle a stack-not-refcounted behavior. It touches
on how difficult compatibility can be.
Father Chrysostomos [96]comments on a branch Dave Mitchell is working on,
suggesting a different naming convention for the ops.
Vincent Pit took a [97]stab (Re: Confused by eval behavior) at solving at
a breakage a commit (which is temporarily reverted) introduced in
[98]Variable::Magic. So far no success.
Dan Collins [99]asks (Broken library functions, especially on windows)
about a situation with failures due to broken math functions in MinGW,
asking how to solve this.
Autovivification [100]rises (Hash key creation for non-lvalue use) again
in discussions as confusing behavior.
References
1. http://www.nntp.perl.org/group/perl.perl5.porters/238158
2. http://www.nntp.perl.org/group/perl.perl5.porters/238072
3. http://www.nntp.perl.org/group/perl.perl5.porters/238071
4. http://www.nntp.perl.org/group/perl.perl5.porters/234342
5. http://www.nntp.perl.org/group/perl.perl5.porters/238096
6. http://metacpan.org/pod/Devel::PPPort
7. http://rt.perl.org/Ticket/Display.html?id=54952
8. http://www.nntp.perl.org/group/perl.perl5.porters/238140
9. http://www.nntp.perl.org/group/perl.perl5.porters/238044
10. http://www.nntp.perl.org/group/perl.perl5.porters/238215
11. http://www.nntp.perl.org/group/perl.perl5.porters/238216
12. http://rt.perl.org/Ticket/Display.html?id=128598
13. http://rt.perl.org/Ticket/Display.html?id=128618
14. http://rt.perl.org/Ticket/Display.html?id=128622
15. http://rt.perl.org/Ticket/Display.html?id=128623
16. http://rt.perl.org/Ticket/Display.html?id=128627
17. http://rt.perl.org/Ticket/Display.html?id=128629
18. http://rt.perl.org/Ticket/Display.html?id=128630
19. http://rt.perl.org/Ticket/Display.html?id=128631
20. http://rt.perl.org/Ticket/Display.html?id=128634
21. http://rt.perl.org/Ticket/Display.html?id=128637
22. http://rt.perl.org/Ticket/Display.html?id=128638
23. http://rt.perl.org/Ticket/Display.html?id=128639
24. http://rt.perl.org/Ticket/Display.html?id=128643
25. http://rt.perl.org/Ticket/Display.html?id=128645
26. http://rt.perl.org/Ticket/Display.html?id=128647
27. http://rt.perl.org/Ticket/Display.html?id=128649
28. http://rt.perl.org/Ticket/Display.html?id=128665
29. http://rt.perl.org/Ticket/Display.html?id=128670
30. http://rt.perl.org/Ticket/Display.html?id=128673
31. http://rt.perl.org/Ticket/Display.html?id=128686
32. http://rt.perl.org/Ticket/Display.html?id=45265
33. http://rt.perl.org/Ticket/Display.html?id=128644
34. http://rt.perl.org/Ticket/Display.html?id=128666
35. http://www.nntp.perl.org/group/perl.perl5.porters/238150
36. http://metacpan.org/pod/Config::General
37. http://rt.perl.org/Ticket/Display.html?id=7655
38. http://rt.perl.org/Ticket/Display.html?id=41121
39. http://rt.perl.org/Ticket/Display.html?id=46019
40. http://rt.perl.org/Ticket/Display.html?id=50352
41. http://rt.perl.org/Ticket/Display.html?id=62412
42. http://metacpan.org/pod/Math::Complex
43. http://rt.perl.org/Ticket/Display.html?id=63574
44. http://rt.perl.org/Ticket/Display.html?id=66852
45. http://rt.perl.org/Ticket/Display.html?id=67244
46. http://metacpan.org/pod/Math::BigRat
47. http://rt.perl.org/Ticket/Display.html?id=69208
48. http://rt.perl.org/Ticket/Display.html?id=70690
49. http://rt.perl.org/Ticket/Display.html?id=85366
50. http://rt.perl.org/Ticket/Display.html?id=127251
51. http://rt.perl.org/Ticket/Display.html?id=127531
52. http://rt.perl.org/Ticket/Display.html?id=127921
53. http://rt.perl.org/Ticket/Display.html?id=128170
54. http://rt.perl.org/Ticket/Display.html?id=128445
55. http://metacpan.org/pod/Time::HiRes
56. http://rt.perl.org/Ticket/Display.html?id=128524
57. http://metacpan.org/pod/Data::Dumper
58. http://rt.perl.org/Ticket/Display.html?id=128607
59. http://rt.perl.org/Ticket/Display.html?id=128618
60. http://rt.perl.org/Ticket/Display.html?id=128630
61. http://rt.perl.org/Ticket/Display.html?id=128669
62. http://rt.perl.org/Ticket/Display.html?id=128678
63. http://rt.perl.org/Ticket/Display.html?id=128685
64. http://rt.perl.org/Ticket/Display.html?id=128686
65. http://rt.perl.org/Ticket/Display.html?id=40234
66. http://rt.perl.org/Ticket/Display.html?id=42601
67. http://metacpan.org/pod/Exporter
68. http://rt.perl.org/Ticket/Display.html?id=56608
69. http://metacpan.org/pod/Math::BigInt
70. http://metacpan.org/pod/Math::BigInt::GMP
71. http://rt.perl.org/Ticket/Display.html?id=61288
72. http://metacpan.org/pod/Time::HiRes
73. http://rt.perl.org/Ticket/Display.html?id=61964
74. http://rt.perl.org/Ticket/Display.html?id=128605
75. http://rt.perl.org/Ticket/Display.html?id=128574
76. https://rt.cpan.org/Ticket/Display.html?id=115098
77. http://metacpan.org/pod/XML::DOM::XPath
78. http://metacpan.org/pod/B::Hook::Parser
79. http://metacpan.org/pod/Devel::Declare
80. http://rt.perl.org/Ticket/Display.html?id=128621
81. https://rt.cpan.org/Ticket/Display.html?id=116192
82. http://metacpan.org/pod/Time::Verbal
83. http://rt.perl.org/Ticket/Display.html?id=128623
84. http://www.nntp.perl.org/group/perl.perl5.porters/238073
85. http://rt.perl.org/Ticket/Display.html?id=126041
86. http://rt.perl.org/Ticket/Display.html?id=128358
87. http://rt.perl.org/Ticket/Display.html?id=128629
88. http://rt.perl.org/Ticket/Display.html?id=67424
89. http://rt.perl.org/Ticket/Display.html?id=128685
90. http://rt.perl.org/Ticket/Display.html?id=128438
91. http://www.nntp.perl.org/group/perl.perl5.porters/237910
92. http://www.nntp.perl.org/group/perl.perl5.porters/237806
93. http://rt.perl.org/Ticket/Display.html?id=128598
94. http://www.nntp.perl.org/group/perl.perl5.porters/238059
95. http://www.nntp.perl.org/group/perl.perl5.porters/237964
96. http://www.nntp.perl.org/group/perl.perl5.porters/238060
97. http://www.nntp.perl.org/group/perl.perl5.porters/238106
98. http://metacpan.org/pod/Variable::Magic
99. http://www.nntp.perl.org/group/perl.perl5.porters/238139
100. http://www.nntp.perl.org/group/perl.perl5.porters/238189
