=head1 This Fortnight on perl5-porters - 21 June-5 July 2008 (unfinished)

=head1 Topics of Interest

=head2 Why C<$@> makes me cry

  http://xrl.us/kkynu

=head2 C<IPC::Run>

  http://xrl.us/kkynw

=head2 How to dig through symbol tables

  http://xrl.us/kkyny

=head2 Old perls in production

  http://xrl.us/kkyn2

=head2 A Project to get Perl supported on Google App Engine

  http://xrl.us/kkyn4

=head2 Incorrect variable reported in uninitialized value warning

  http://xrl.us/kkyn6

=head2 Wrong version in F<META.yml>

  http://xrl.us/kkyn8

=head2 AIX Hints file (libm package) - awaiting comments

  http://xrl.us/kkyoa

=head2 Compiling on Solaris 8 and/or Solaris 2.6

  http://xrl.us/kkyoc

=head2  Failure to load binary modules found via PERL5LIB for tests on Fedora Core using -T

  http://xrl.us/kkyoe
  http://xrl.us/kkyog

=head2 C<print>: wrong order of evaluation

  http://xrl.us/kkyoi

=head2 TODO of the week: installman cachegrind profile

  http://xrl.us/kkyok

=head2 UTF-8 smoke

  http://xrl.us/kkyon

=head2 Split smoke for threaded C<-DDEBUGGING> builds

  http://xrl.us/kkyop

=head2 F<utils/prove> loses C<@INC> settings

  http://xrl.us/kkyor

=head2 Common test code for timed bail out

  http://xrl.us/kkyot
  http://xrl.us/kkyov

=head2 smartmatch and overloaded objects in blead

  http://xrl.us/kkyox

=head2 C<my $@> - a proposal

  http://xrl.us/kkyoz
  http://xrl.us/kkyo3

=head2 cygwin Config{libperl} going dynamic?

  http://xrl.us/kkyo5

=head2 Shared hashes fail to preserve utf-8ness of keys

  http://xrl.us/kkyo7

=head2 Which test files need to use the watchdog() function?

  http://xrl.us/kkyo9

=head2 C<tar> problems under armv5tejl-linux

  http://xrl.us/kkypb

=head2 Some more missing C<isGV_with_GP()>s

  http://xrl.us/kkypd

=head2 Control flow ops, dead code, warnings

  http://xrl.us/kkypf

=head2 HP-UX 11.11: Your OS does not support locking

  http://xrl.us/kkyph

=head2 Dual-lifing C<test.pl>

  http://xrl.us/kkypj
  http://xrl.us/kkypm

=head2 C<< File::Spec-E<gt>case_tolerant >> works only on systems where one filesystem type is installed

  http://xrl.us/kkypo
  http://xrl.us/kkypq

=head2 A long mess

  http://xrl.us/kkyps

=head2 C<use less 'memory'>

  http://xrl.us/kkypu

=head2 Dual-life and autodie (Pumpking input appreciated)

  http://xrl.us/kkypw

=head2 C<pp_mapwhile>, C<pp_iter>

  http://xrl.us/kkypy

=head2 Strictly no indirect object syntax?

  http://xrl.us/kkyp2

=head2 F<t/op/exec.t> fails on Fedora

  http://xrl.us/kkyp4

=head2 POD overhaul in C<perlguts>

  http://xrl.us/kkyp6
  http://xrl.us/kkyp8

=head1 Patches of Interest

=head2 C<perlsyn>: equivalent code for HASH ~~ ARRAY

  http://xrl.us/kkyqa

=head2 Put every pattern in F<.gitignore> files on a single line

  http://xrl.us/kkyqc

  F<.gitignore> for DynaLoader
  http://xrl.us/kkyqe

=head2 C<TAP::Parser> should be I<easier> to subclass

  http://xrl.us/kkyqg

=head2 Fix F<malloc.c> warning

  http://xrl.us/kkyqi

=head2 Documentation on taint/environment interactions for F<perlrun.pod>

  http://xrl.us/kkyqk

=head2 Fix debop with pad const

  http://xrl.us/kkyqn

=head2 More comprehensive F<smartmatch.t>

  supersedes smobj.t
  http://xrl.us/kkyqp

  add eval and error support
  http://xrl.us/kkyqr

  add undef tests
  http://xrl.us/kkyqt

=head2 ppd target gets ARCHITECTURE NAME wrong in 5.10

  http://xrl.us/kkyqv

=head2 common test code for timed bail

  http://xrl.us/kkyqx

=head2 shared hashes fail to preserve utf-8ness of keys

  http://xrl.us/kkyqz

=head2 watchdog should not execute END block

  http://xrl.us/kkyq3
  http://xrl.us/kkyq5

=head2 version in F<test.pl>

  http://xrl.us/kkyq7
  http://xrl.us/kkyq9

  and more updates
  http://xrl.us/kkyrb
  http://xrl.us/kkyrd

=head2 Silence some C++ warnings with C<PERL_POISON>

  http://xrl.us/kkyrf

=head2 C<perltodo>

  http://xrl.us/kkyrh

=head1 New and old bugs from RT

=head2 Security of ARGV using 2-argument open - It's a feature (#2783)

The fact that there are some people out there who take perverse pleasure
in writing

  log-munger.pl log.0 'gunzip -c log.1.gz |'

and having it Do The Right Thing led Paul Fenwick to conclude that the
reported bug is a feature.

  eww
  http://xrl.us/kkyrj

=head2 C<Pod::HTML> problem (#9385)

Renée Bäcker added a small patch and test case to solve a long-standing
problem in C<Pod::HTML>.

  http://xrl.us/kkyrm

=head2 Bug in C<format>/C<write> (#22977)

There is a problem with C<format> and C<write> and forward
declarations, due to a jumbo closure patch from Dave Mitchell in 2003.
Apparently, due to the rewrite of the closure and lexical code in 5.10,
what used to be simply a wrong result now become a core dump.

  http://xrl.us/kkyro

=head2 C<=cut> toggles POD/code compilation rather than forcing code (#24483)

Renée wrote some code to solve the fact that a C<=cut> following
code will case the parser to flip into POD mode, rather than generating a
warning. Abigail and Rafaël both admitted to having relied in the
existing behaviour, and that it was more likely a task for C<Perl::Critic>
or C<Pod::Checker> to solve.

Renée therefore declared that the ticket should be rejected. And so it was.

  http://xrl.us/kkyrq

=head2 for any perl thing, C<perldoc -f> should cough up some tip (#27886)

Renée also set about making C<perldoc -f> return something useful for
things like operators (such as C<tr>), and welcomed people's suggestions.

  http://xrl.us/kkyrs

=head2 C<perldoc lib> doesn't describe actual behaviour of C<use lib> (#34339)

Renée added some documentation to address the concern. Steffen Müller
updated the CPAN dual-lifed version, and hinted that blead's version needs
to be bumped up a couple of notches.

  http://xrl.us/kkyru

=head2 open(FILEHANDLE, "E<lt>&=$fd") + dupping in memory files (#50756)

Bram looked at this report, and suggested that part of the problem was that
the original submitter made a mistake, and the remaining problem was more a
documentation issue than anything else.

  http://xrl.us/kkyrw

=head2 C<File::Glob> fails to set error (#51410)

Nicholas Clark filed this report a couple of months ago, in an attempt
to nail down an intermittent failure with C<File::Glob>. Bram wondered
whether running the test a few more times might trigger a smoke failure
on some other platform.

  http://xrl.us/kkyry

=head2 C<s///> on tied hashes (#51514)

Bram saw that the failure that cropped up in 5.10 is now fixed in
blead, at least on his machine, and so he asked the original submitter
to confirm that it was indeed the case for them.

  http://xrl.us/kkyr2

=head2 C<PERL_NO_SHORT_NAMES> incompatible with F<perl.h> (#51762)

Bram thought that this problem that affected 5.8 should be fixed in 5.10.

  http://xrl.us/kkyr4

=head2 C<eval>'ing a certain format string segfaults perl (#55668)

Nicholas Clark reported that the bug was still with us, and pointed to
the exact section of code that was no doubt responsible for the problem.

  http://xrl.us/kkyr6

=head2 return return (#56150)

At the end of this thread from the week before, Reini Urban achieved the
impressive feat of getting the tokeniser and the peep-hole optimiser to
emit a warning when a doubled-up return was used. Having done that, he
wasn't sure what to do with it; certainly no-one had the courage to apply
the patch.

  the pig and and and and and whistle
  http://xrl.us/kkyr8

=head2 C<(((??{1 + $^N})))> behaves differently in 5.10.0 to blead (#56194)

Bram noted that reverting change #32857 was sufficient to restore the
previous behaviour.

  http://xrl.us/kkysa

=head2 Unexpected UTF-8 flag in ascii strings (#56336)

This bug report fell out of a thread on Perlmonks, but Rafaël Garcia-Suarez
was disinclined to act upon it, considering it as a minor implementation
detail.

  and people who call utf8::is_utf8 get what they deserve
  http://xrl.us/kkysc

=head2 C<encode()> with FB_CROAK may destroy its argument (#56340)

Alex Kapranoff found a problem in C<Encode::encode> when playing with UTF-7
strings, and suggested a fix.

  http://xrl.us/kkyse

Alex also found that the UTF-7 codec in Encode uses C<m/\G/g> without
resetting C<pos()> (bug #56342).

  so he reset it
  http://xrl.us/kkysg

=head2 C<glob()> with spaces - documentation unclear (#56348)

Ed Avis tripped over the behaviour of spaces in glob parameters, but Paul
Fenwick was quick to point out that it's a very desirable feature. He
tightened up the documentation in C<File::Glob>, which Rafaël applied.

  what would Lassie do?
  http://xrl.us/kkysi

=head2 odd segmentation fault with F<overload.pm> in perl 5.8.8 (#56376)

Paul Miller reported a bug in F<overload.pm>, only to discover that the
porters had already encountered the error in an earlier incarnation and
it was already fixed in blead.

  http://xrl.us/kkysk

=head2 Odd behavior of given {when (... or ...) ...} (#56416)

"Polynomial" posted a question over at Perlmonks regarding some
mysteriously inconsistent results for smart matching. Since none
of the answers solved the matter conclusively, a bug report was
filed.

  http://www.perlmonks.com/?node_id=693370
  http://xrl.us/kkysn

=head2 Perl 5.10 breaks C<\N{}> in regex interpolated inside regex (with charnames) (#56444)

Chris Pirazzi found a problem in 5.10 that Andreas Knig traced to
a patch from Yves Orton back in September 2006. Rafaël discovered
that a judicious use of C<eval> could sweep the problem under the
carpet, thus leading him to conclude that there was some problem
involving the order of loading afoot.

  http://xrl.us/kkysp

=head2 C<%+> still untaints data when C<use re qw(taint)> is in scope (#56490)

  http://xrl.us/kkysr

perl5.10.0: caching environment causes panic in some modules (esp. Term::ReadLine::Gnu) (#56500)

  http://xrl.us/kkyst

=head2 Empty list elements in list context (#56524)

  http://xrl.us/kkysv

=head2 C<m/a{1,0}/> compiles but doesn't match a literal string (#56526)

  http://xrl.us/kkysx

=head2 E<lt>variableE<gt> used only once: possible typo (#56530)

  http://xrl.us/kkysz

=head2 C<pad_alloc> and C<fold_constants> are not members of public API (#56536)

  http://xrl.us/kkys3

=head2 5.10.0 crash on serialised v-strings (#56606)

  http://xrl.us/kkys5

=head2 C<Math::BigInt> gives completely when C<Math::BigInt::GMP> is used (#56608)

  http://xrl.us/kkys7

=head2 Perl 5.10.0 double-free bug with regular expressions (#56610)

  http://xrl.us/kkys9

=head2 Perl5 Bug Summary

  http://xrl.us/kkytb
  http://xrl.us/kkytd
  http://rt.perl.org/rt3/NoAuth/perl5/Overview.html

=head1 New Core Modules

=over 4

=item podlators 2.1.1 released

  http://xrl.us/kkytf

=item threads::shared 1.24

  http://xrl.us/kkyth
  http://xrl.us/kkytj

=back

=head1 In Brief

Renée Bäcker wondered what to do about really old B<tickets in RT> that
appear to contain wrong information, and the issuer never replied
to a request for more information in over four years. Bram suggested
that such tickets should be rejected, on the grounds that if it
were a serious problem, someone would have filed a better bug report
in the meantime.

  http://xrl.us/kkytm

Juerd Waalboer wrapped up the B<Perl 5.8 and perl 5.10 differences
on UTF/Pack things> thread with a useful review for dealing with
legacy code that deals poorly with UTF-8 strings.

  http://xrl.us/kkyto

=head2 Last week's summary

  This Week on perl5-porters - 7-13 June 2008
  http://xrl.us/kkytq

  This Week on perl5-porters - 14-20 June 2008
  http://xrl.us/kkyts

  feedback
  http://xrl.us/kkytu

=head2 About this summary

This summary was written by David Landgren.

Weekly summaries are published on F<http://use.perl.org/> and posted
on a mailing list, (subscription: F<perl5-summary-subscribe@perl.org>).
The archive is at F<http://dev.perl.org/perl5/list-summaries/>.
Corrections and comments are welcome.

If you found this summary useful, please consider contributing to
the Perl Foundation or attending a YAPC to help support the development
of Perl.