Perl 5 Porters Mailing List Summary: July 13th-22nd

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

• Perl 5 Porters Mailing List Summary: July 13th-22nd by Sawyer X