develooper Front page | perl.perl5.changes | Postings from May 2021

[Perl/perl5] a0fdea: perlapi: Rmv repeated word

From:
Karl Williamson via perl5-changes
Date:
May 1, 2021 03:48
Subject:
[Perl/perl5] a0fdea: perlapi: Rmv repeated word
Message ID:
Perl/perl5/push/refs/heads/smoke-me/khw-locale/d82c10-72faf7@github.com
  Branch: refs/heads/smoke-me/khw-locale
  Home:   https://github.com/Perl/perl5
  Commit: a0fdead5822b8e60c716dfacda45488eafc8e9a3
      https://github.com/Perl/perl5/commit/a0fdead5822b8e60c716dfacda45488eafc8e9a3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M sv.c

  Log Message:
  -----------
  perlapi: Rmv repeated word


  Commit: 3e545306c82697996888579de4ba4b7f002f6700
      https://github.com/Perl/perl5/commit/3e545306c82697996888579de4ba4b7f002f6700
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M dosish.h
    M unixish.h

  Log Message:
  -----------
  XXX craig Unixish.h, doshish.h: Reorder terminations; simplify

The IO and memory terminations need to be after other things.  Add a
comment so that future maintainers won't make the mistakes I did.

Also refactor to that amiga os doesn't have a separate list to get out
of sync

I suspect that the amiga termination should be moved to earlier in
the sequence, but absent any evidence; I'm leaving it unchanged.


  Commit: 1bbb545f9fcd75828e7bb8bb20f24dee1dc0f231
      https://github.com/Perl/perl5/commit/1bbb545f9fcd75828e7bb8bb20f24dee1dc0f231
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Win32: Don't check folds validity

This code will check, when warnings are on, that the libc functions
return valid values.  But Windows platforms will always fail because
they have multiple divergences from the Posix standard.  The macros that
implement the case changing/folding in handy.h take extra steps to bring
Windows code more into alignment with Posix.  Those are too complicated
to easily duplicate the logic here.  The result of these checks is
looked at by our test suite, which has long, without anyone noticing,
skipped portions on Windows, even though handy.h should correct for
this.  So simply, don't do the checking under Windows, and find out what
handy.h has failed to fully correct for.


  Commit: b61f75a2644aa00caa09fde5c47865d2f1bbc6da
      https://github.com/Perl/perl5/commit/b61f75a2644aa00caa09fde5c47865d2f1bbc6da
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c
    M perl.h

  Log Message:
  -----------
  DEBUG_L now also looks at environment variable

Because locale initialization happens before command line processing,
one can't pass a -DL argument to enable debugging of locale
initialization.  Instead, an environment variable is read then, and is
used to enable debugging or not.  In the past, code specifically had to
test for this being set.  This commit changes that so that debugging can
automatically be enabled without having to write special code.  Future
commits will strip out those special checks.


  Commit: 409d9b09a46b8b35871a5c29c9026e6722bdd5ca
      https://github.com/Perl/perl5/commit/409d9b09a46b8b35871a5c29c9026e6722bdd5ca
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Replace most #ifdef DEBUGGING lines

THe previous commit enhanced the DEBUG macros so that they contain the
logic that previously had to be done with conditional compilation
statements.  Removing them makes the code easier to read.


  Commit: f756ff1019f171d27e93d1827a3f05896898cc67
      https://github.com/Perl/perl5/commit/f756ff1019f171d27e93d1827a3f05896898cc67
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M handy.h
    M numeric.c
    M regcomp.c
    M regexec.c
    M utfebcdic.h

  Log Message:
  -----------
  Change handy.h macro names to be C standard conformant

C reserves symbols beginning with underscores for its own use.  This
commit moves the underscore so it is trailing, which is legal.  The
symbols changed here are most of the ones in handy.h that have few uses
outside it.


  Commit: 9ede659fb039cdb7f5bf16db429da17cac5131ff
      https://github.com/Perl/perl5/commit/9ede659fb039cdb7f5bf16db429da17cac5131ff
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  handy.h: Remove only 2 calls to an internal macro

Replace isIDFIRST_LC and isWORD_CHAR_LC isIDFIRST_LC  with slightly
faster implementations.


  Commit: 9486d8edb4e0e91932aba02500a94788dd3fec5b
      https://github.com/Perl/perl5/commit/9486d8edb4e0e91932aba02500a94788dd3fec5b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  handy.h: Refactor some #ifdef's for commonality

This changes these compilation conditionals so that things in common
between Windows and other platforms are only defined once.

It changes the isIDFIRST_LC and isWORDCHAR_LC definitions for
non-Windows to match that platform superficially, though expanding to
what it previously did to.


  Commit: 9f0094bc0f5e298ef29f217c5afc298999537f7c
      https://github.com/Perl/perl5/commit/9f0094bc0f5e298ef29f217c5afc298999537f7c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  handy.h: Add some branch predictions


  Commit: 158e1eb635e379d5136d44fc1c220d15529f9155
      https://github.com/Perl/perl5/commit/158e1eb635e379d5136d44fc1c220d15529f9155
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  handy.h: White-space, comment only


  Commit: d0be9da53aa7b330c815a7e0220cd4d2d53a30b8
      https://github.com/Perl/perl5/commit/d0be9da53aa7b330c815a7e0220cd4d2d53a30b8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  handy.h: Don't use char class if no LC_CTYPE

It is possible to compile perl to not pay attention to LC_CTYPE.  This
was testing for no locales at all; whereas the stricter requirement
should be used.


  Commit: 0bf1c20c3781467c0613a9848c0042d66eb78fa5
      https://github.com/Perl/perl5/commit/0bf1c20c3781467c0613a9848c0042d66eb78fa5
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M charclass_invlists.h
    M handy.h
    M l1_char_class_tab.h
    M lib/unicore/uni_keywords.pl
    M perl.c
    M perl.h
    M regcomp.c
    M regcomp.h
    M regen/mk_PL_charclass.pl
    M regexec.c
    M sv.c
    M uni_keywords.h
    M utfebcdic.h

  Log Message:
  -----------
  Change handy.h macro names to be C standard conformant

C reserves symbols beginning with underscores for its own use.  This
commit moves the underscore so it is trailing, which is legal.  The
symbols changed here are many of the ones in handy.h that have
significant uses outside it.


  Commit: 7f210b17d3b2bca68cc5fc931f2fc6bb87cd0ef0
      https://github.com/Perl/perl5/commit/7f210b17d3b2bca68cc5fc931f2fc6bb87cd0ef0
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  handy.h: Rmv internal macro

LC_CAST_ was my attempt at generality, but I didn't realize that the
POSIX standard specifies the type that this was meant to generalize, so
there isn't any need for it.


  Commit: d5767e51bd294cbade771536acf9726301e0fcd2
      https://github.com/Perl/perl5/commit/d5767e51bd294cbade771536acf9726301e0fcd2
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  handy.h: Refactor some internal macros

This changes the parameters etc, in preparation for further changes


  Commit: 0a77bd86413725b52b492fa276a9a7c72ec1cbb7
      https://github.com/Perl/perl5/commit/0a77bd86413725b52b492fa276a9a7c72ec1cbb7
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  handy.h: Rmv unnecessary parameter to internal macros

The cast is required to be U8 by the POSIX standard.  There is no need
to have this added generality.


  Commit: 91285b978e4bbea27d14d0eaf9c3df06d4c2de6b
      https://github.com/Perl/perl5/commit/91285b978e4bbea27d14d0eaf9c3df06d4c2de6b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  handy.h: #define one macro in terms of another

These two macros are equivalent as folding and lowercasing are the same
for this input domain.  Better to say so rather than to replicate the
definitions.


  Commit: 22ed50009536f8e91e407d8d339b6ce2d6ce66b2
      https://github.com/Perl/perl5/commit/22ed50009536f8e91e407d8d339b6ce2d6ce66b2
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  No locales => don't use isspace(), toLower() etc.

This commit changes what happens on platforms without locale handling to
use our precomputed definitions of what the various character class
definitions and case changing operations are.  Previously, it just
called the libc locale-dependent functions and made sure the result was
ASCII.  I think this is a holdover from before we had the precomputed
definitions


  Commit: c3e2fc9faad6fc8c50fa54bd69cd4f5d8e841440
      https://github.com/Perl/perl5/commit/c3e2fc9faad6fc8c50fa54bd69cd4f5d8e841440
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  handy.h: Collapse two sets of macros

By redefining a wrapper macro used in one set based on compile-time
info; the other set can be defined in terms of it, and the separate
entries removed.


  Commit: 17b5d0375a9e6559ac9b2930ae246a0d03d2641b
      https://github.com/Perl/perl5/commit/17b5d0375a9e6559ac9b2930ae246a0d03d2641b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  handy.h: Move some macro defns around

This is to make the difference listing in future commits smaller.

This change includes some comment changes, and some extra parens around
some subexpressions


  Commit: a7c4135f19b8960d98b7de5a0012edb1ca46f053
      https://github.com/Perl/perl5/commit/a7c4135f19b8960d98b7de5a0012edb1ca46f053
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  handy.h: Collapse some macros

These 3 sets of macros can be collapsed trivially into 3 macros.


  Commit: 3d5e8affdb367d5f89cfa8387aeddf3769f41e07
      https://github.com/Perl/perl5/commit/3d5e8affdb367d5f89cfa8387aeddf3769f41e07
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  handy.h: Add wrapper layer macros for isalnum() ...

This adds a new set of macros, forming a lower layer to what is currently
there to wrap the character classification libc functions, isdigit()
etc, and case changing ones, tolower(), toupper().

On most platforms these expand simply to the libc function call.  But on
windows, they expand to something more complex, to bring the Windows
calls into POSIX compliance.  Previously that was achieved at the higher
level, with the result that lower level calls were broken.  This
resulted in parts of the test suite being skipped on Windows.

The current level is rewritten to use the new lower layer, with the
result that it is simpler, as the complexity is now done further down.

I thought about calling these macros is_porcelain_isalnum or something
similar to emphaisze that they are close to the bare libc version, but
thought isU8_alnum() is shorter and conveys another truth, that being
the input is assumed to be a byte, without checking.


  Commit: d329f2113b86c954d428a70639014cec8f8e52e1
      https://github.com/Perl/perl5/commit/d329f2113b86c954d428a70639014cec8f8e52e1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c
    M vms/vms.c

  Log Message:
  -----------
  locale.c: Use new macros from the prev commit

This should result in Windows boxes now passing the locale sanity
checks.  Previously that failure would cause the test suite tests to be
skipped, and warnings generated to Windows users that actually were
invalid, as the flaws were actually compensated for in other code.


  Commit: 4307fb191351daa04519bf415295bbfb72d8f53d
      https://github.com/Perl/perl5/commit/4307fb191351daa04519bf415295bbfb72d8f53d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  XXX SEE IF WORKS handy.h: Change Windows macros


  Commit: 70a075afed3f32452ae3026035c9a98069163e12
      https://github.com/Perl/perl5/commit/70a075afed3f32452ae3026035c9a98069163e12
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  handy.h: Add isCASED_LC

As a convenience to other code.


  Commit: 7aa0a8b7acdd34b3d614cffebd4569c5d07f35cb
      https://github.com/Perl/perl5/commit/7aa0a8b7acdd34b3d614cffebd4569c5d07f35cb
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M regexec.c

  Log Message:
  -----------
  regexec.c: Improve code

These case statements in a switch all had the same prelude for checking
if the locale is UTF-8 and handling that case separately.  A few commits
ago created macros closer to the base level.  This commit factors out
the common UTF-8 handling, and then puts the lower lever things in the
switch().  Perhaps the C optimizer will be smart enough to do this too,
but we might as well do it ourselves, now that it is convenient.


  Commit: c6077befca39e4063f099baa6b410e8fec5529a9
      https://github.com/Perl/perl5/commit/c6077befca39e4063f099baa6b410e8fec5529a9
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M regexec.c

  Log Message:
  -----------
  regexec.c: Refactor switch default()

It seems clearer to me to have the panic at the end of the routine
instead of as the default: of a switch().


  Commit: b5548c2ce3dfd8b9162d7267668e031778686676
      https://github.com/Perl/perl5/commit/b5548c2ce3dfd8b9162d7267668e031778686676
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Declare three static arrays to be so.


  Commit: f2180638538232d6af2863f8deb0ebb630663074
      https://github.com/Perl/perl5/commit/f2180638538232d6af2863f8deb0ebb630663074
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c
    M perl.h

  Log Message:
  -----------
  Move some locale.c #defines to perl.h

This is in preparation for them to be used in macros from outside
locale.c


  Commit: a0ac3a759087abd298e6dbca7bcad2cee1d7bc57
      https://github.com/Perl/perl5/commit/a0ac3a759087abd298e6dbca7bcad2cee1d7bc57
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c
    M perl.h

  Log Message:
  -----------
  Mark newly moved symbols as private

The previous commit made certain symbols that previously were local to
locale.c now available everywhere.  Add a trailing underscore to their
names to mark them as private.


  Commit: bf9b8a54c0c8c7bfe403c9e5e3e81b3e1f7816af
      https://github.com/Perl/perl5/commit/bf9b8a54c0c8c7bfe403c9e5e3e81b3e1f7816af
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c
    M makedef.pl
    M perl.h

  Log Message:
  -----------
  Add USE_LOCALE_THREADS #define

This is in preparation for supporting configurations where there threads
are available, but the locale handling code should ignore that fact.

This stems from the unusual locale handling of z/OS, where any attempt
is ignored to change locales after the first thread is created.


  Commit: 684eeb325ff4b7870660bafcf4e0bb7ec8df50ba
      https://github.com/Perl/perl5/commit/684eeb325ff4b7870660bafcf4e0bb7ec8df50ba
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M ext/POSIX/POSIX.xs
    M ext/POSIX/lib/POSIX.pm
    M intrpvar.h
    M locale.c
    M makedef.pl
    M perl.c
    M perl.h
    M sv.c

  Log Message:
  -----------
  Regularize HAS_POSIX_2008_LOCALE, USE_POSIX_2008_LOCALE

A platform shouldn't be required to use the Posix 2008 locale handling
functions if they are present.  Perhaps they are buggy.  So, a separate
define for using them was introduced, USE_POSIX_2008_LOCALE.  But until
this commit there were cases that were looking at the underlying
availability of the functions, not if the Configuration called for their
use.


  Commit: d7cd1abc6c7cd761aaad36c766e0100a9247dc0c
      https://github.com/Perl/perl5/commit/d7cd1abc6c7cd761aaad36c766e0100a9247dc0c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Change macro name

Adopt the git convention of 'porcelain' meaning without special
handling.  This makes it clear that porcelain_setlocale() is the base
level.


  Commit: eca24835327899940965903088f05aeda26e9a5a
      https://github.com/Perl/perl5/commit/eca24835327899940965903088f05aeda26e9a5a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Cast return of setlocale() to const

If they had it to do over again, the libc makers would have made the
return of this function 'const char *'.  We can cast it that way
internally to catch erroneous uses at compile time.


  Commit: 2574dde1f513ed49767115b2aacaeeced225ba44
      https://github.com/Perl/perl5/commit/2574dde1f513ed49767115b2aacaeeced225ba44
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Create S_get_category_index()

libc locale categories, like LC_NUMERIC, are opaque integers.  This
makes it inconvenient to have table-driven code.  Instead, we have
tables that are indexed by small positive integers, which are a
compile-time mapping from the libc values.

This commit creates a run-time function to also do that mapping.  It
will first be used in the next commit.

The function does a loop through the available categories, looking for a
match.  It could be replaced by some sort of quick hash lookup, but the
largest arrays in the field have a max of 12 elements, with almost all
searches finding their quarry in the first 6.  It doesn't seem
worthwhile to me to replace a linear search of 6 elements by something
more complicated.  The design intent is this search will be used only at
the edges of the locale-handling code; once found the index is used in
future bits of the current operation.


  Commit: ea3f490639630e8f4396a6e496c5517d2e6c31a6
      https://github.com/Perl/perl5/commit/ea3f490639630e8f4396a6e496c5517d2e6c31a6
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Use get_category_index()

This creates the first uses of the function added in the previous commit.

It changes the name of a function that now takes an index to have the
suffix _i to indicate its calling parameter is a category index rather
than a category.  This will become a common paradigm in this file in
later commits.

Two macros are also created to call that function; they have suffixes _c
(to indicate the parameter is a category known at compile time, and _r
(to indicate it needs to be computed at runtime).  This is in keeping
with the already existing paradigm in this file.


  Commit: 84e25a07453514c2db16540ba846876ab0903a74
      https://github.com/Perl/perl5/commit/84e25a07453514c2db16540ba846876ab0903a74
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Change S_emulate_setlocale name and sig

It turns out this function is called only from places where we have the
category index already computed; so change the signature to use the
index and remove the re-calculation.

It renames it to emulate_setlocale_i() to indicate that the category
parameter is an index.

This also means, that it's very unlikely that it will be called with an
out-of-bounds value.  Remove the debugging statement for that case (but
retain the error return value).


  Commit: 1501402ab86d25565cbf107937c7ca8c563f052b
      https://github.com/Perl/perl5/commit/1501402ab86d25565cbf107937c7ca8c563f052b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c
    M pod/perldelta.pod
    M pod/perldiag.pod

  Log Message:
  -----------
  locale.c: Simplify S_category_name

We can use the new function S_get_category_index() to simplify this.
Also, when I wrote it I didn't know about Perl_form(), and had
reimplemented a portion of it here; which is yanked as well.


  Commit: b96d3ef350bea23ed9323de1864c48d72e6bfbe8
      https://github.com/Perl/perl5/commit/b96d3ef350bea23ed9323de1864c48d72e6bfbe8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Move unreachable code

It turns out this code, setting errno, is unreachable.  Move it to the
place where it would do some good, removing an extraneous, unreachable
return;


  Commit: 4fe12c217bdf6ebc1392fd6bc8e60dd6994cd2a3
      https://github.com/Perl/perl5/commit/4fe12c217bdf6ebc1392fd6bc8e60dd6994cd2a3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Comment clarifications, white space

Some of these are to make future difference listings shorter

Some of the changes look like incorrect indentation here, but anticipate
future commits.


  Commit: fd34f2d8d085359671f5535002dbf92f5711b104
      https://github.com/Perl/perl5/commit/fd34f2d8d085359671f5535002dbf92f5711b104
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Move fcn within file

This is for later commits which will change it to rely on new defines
that won't occur until later in the file than its current position


  Commit: 9ca217029d41c580c36809927bc563d36c8a6d9e
      https://github.com/Perl/perl5/commit/9ca217029d41c580c36809927bc563d36c8a6d9e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Separate query part of emulate_setlocale()

This splits a large function so that it is easier to comprehend, and is
in preparation for them to be separately callable.


  Commit: a6d0a820864cf692c8378396ea868e7b1857dd47
      https://github.com/Perl/perl5/commit/a6d0a820864cf692c8378396ea868e7b1857dd47
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Outdent previous commit

The previous commit kept the indentation level the same as it moved code
to a new function, even though an outer block was stripped off in the
process.  This was to minimize diff output.  This commit is white space
only.


  Commit: b7486394cbbb1cf84e00e034df31709084f7be6f
      https://github.com/Perl/perl5/commit/b7486394cbbb1cf84e00e034df31709084f7be6f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Remove spaces around a '##' preprocessor directive

It turns out that at least my gcc preprocessor gets confused in some
contexts if spaces surround the ##.  CAT2() doesn't work for these.

It is working in this context, but future commits will introduce ones
where it won't, so this commit will help make things consistent within
this file

What seems to fail is #define f(x) (..., g(x ## y), ...) where 'x' is a
an already #defined symbol.  I want 'xy', but instead, for example if
'x' has been defined to be 1, I get '1y'


  Commit: b27e72e3dbe3a2b8c8cc23e34b565a28c3557477
      https://github.com/Perl/perl5/commit/b27e72e3dbe3a2b8c8cc23e34b565a28c3557477
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: #define some macros in terms of a base one

This is so changes to the lowest level automatically propagate to the
others


  Commit: d7bfa49511ea64b06aad0c589c62c166243e9351
      https://github.com/Perl/perl5/commit/d7bfa49511ea64b06aad0c589c62c166243e9351
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Create new macros for just querying locale

There are two sets of names, which immediately indicate if the result
can be relied on to be thread level or must be assumed to be global to
the whole process.  At the moment they all expand to the same thing,
since on a threadless perl, it's a don't care; and on a threaded perl,
they are all already thread-level, in the Configurations we support.

Future commits will cause the macros to diverge, and comments will be
added then.

For POSIX 2008, this commit causes queries to go directly to the query
function, avoiding S_emulate_setlocale_i() completely.


  Commit: 4fd41289070b53a18c23d92641ea39abe03f4846
      https://github.com/Perl/perl5/commit/4fd41289070b53a18c23d92641ea39abe03f4846
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Generalize certain Win32 calls

The old versions were windows-specific; the changes use a more generic
macro that currently expands to the same thing, but future commits will
change that.


  Commit: ade51a1da65c814ca782b12a531be015bef8b49b
      https://github.com/Perl/perl5/commit/ade51a1da65c814ca782b12a531be015bef8b49b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Add a convenience #define

This makes it clear if we are using an array that currently only happens
on non-querylocale systems, but that will change in future commits.


  Commit: f4e5776883f3c17c9b13793c4d8130f809ee34c7
      https://github.com/Perl/perl5/commit/f4e5776883f3c17c9b13793c4d8130f809ee34c7
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Add setlocale() return context macros

Future commits will benefit from knowing if the return value of
setlocale is to be ignored, just checked for if it worked, or the full
value is needed and can be relied on (or not) to be per-thread.


  Commit: 2c7d7fa7ae1ed37ba5d44ef397dc981e8820f569
      https://github.com/Perl/perl5/commit/2c7d7fa7ae1ed37ba5d44ef397dc981e8820f569
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Add panic check/message

This panic is done when a setlocale unexpectedly fails.


  Commit: 408f2fcba946bf65d925a27d81b20be36e944907
      https://github.com/Perl/perl5/commit/408f2fcba946bf65d925a27d81b20be36e944907
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Use a function table to simplify code

Some locale categories require extra steps when they are changed.  This
moves that logic to a table, which gets rid of some code


  Commit: ab8b0425655780429c0acd595ebfe7e2f8545b2f
      https://github.com/Perl/perl5/commit/ab8b0425655780429c0acd595ebfe7e2f8545b2f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  Perl_setlocale(): Same code for all param2 == NULL

Calling Perl_setlocale() with a NULL 2nd parameter returns the current
locale, rather than changing it.  Previously LC_NUMERIC and LC_ALL were
treated specially; other categories were lumped in with the code that
changes the locale.

Changing some categories involves a non-trivial amount of work.  This
commit avoids that by moving all queries to the same 'if' branch.
LC_NUMERIC and LC_ALL still have to be treated specially, but now it's
all within the same outer 'if', and the unnecessarily executing code
for when the locale changes is avoided.


  Commit: e0a5b48165b9b8e4a02e5a3e41595b3d913e8650
      https://github.com/Perl/perl5/commit/e0a5b48165b9b8e4a02e5a3e41595b3d913e8650
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Use low level macros at low level

Implementing Perl_setlocale, we can safely use the internal macros that
the public ones expand to call, without the overhead those public macros
impose (which they do to be more immune from improper calls from outside
code).


  Commit: c1406bbb137c870d2d20f23f56f80a5248f05858
      https://github.com/Perl/perl5/commit/c1406bbb137c870d2d20f23f56f80a5248f05858
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Remove exploratory code

This code was to find out, in debugging builds, if an undocumented glibc
feature worked.  There were no reports that it didn't, and so, after,
several releases, it has served its purpose.  A future commit will allow
enabling this feature as a Configuration option.


  Commit: 46385ed50695349a7bcecad960f93e5c8798485a
      https://github.com/Perl/perl5/commit/46385ed50695349a7bcecad960f93e5c8798485a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  perl.h: Expand scope of cpp conditional

This just doesn't bother with checking some locale-related stuff if not
paying attention to locales.


  Commit: 72e8060705ad75d8fa525f6a0eb7ccb17554e434
      https://github.com/Perl/perl5/commit/72e8060705ad75d8fa525f6a0eb7ccb17554e434
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c
    M perl.h

  Log Message:
  -----------
  locale.c: Create new convenience macro

glibc doesn't have the querylocale() function, available on some other
platforms, such as Darwin and *BSD.  However, it instead has the
equivalent functionality available through an undocumented feature.

This commit allows someone in the know to compile perl to use that
feature, and wraps its API with a macro so that the calling code doesn't
have to be aware of the different APIs of the two methods.

That macro's definition is now done in perl.h, as future commits will
use it in other files.

Since this is an undocumented feature, I am not currently documenting
this wrapper availability.  However, it has been used in the field
without complaint for a couple of releases, as follows:  A more
cumbersome substitute method continues to be used to get what it does.
But in the past both methods were tried and the program died if they
yielded different results.  Since no one has complained, I'm fairly
confident it works.  But sill I'm deferring its more general use.


  Commit: 6a8c49edfc833818ea6ddc99ed64064e537704ca
      https://github.com/Perl/perl5/commit/6a8c49edfc833818ea6ddc99ed64064e537704ca
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M intrpvar.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: querylocale() doesn't work on LC_ALL

I had misread the man pages.  This bug has been in the field for several
releases now, but most likely hasn't shown up because it's almost always
the case that the locale categories will be set to the same locale.  And
so most implementations of querylocale() would return the correct
result.

This commit works by splitting the calculation of the value of LC_ALL
from S_emulate_setlocale_i() into a separate function, and extending it
to work on querylocale() systems.  This has the added benefit of
removing tangential code from the main line, making
S_emulate_setlocale_i easier to read.

calculate_LC_ALL() is the new function, and is now called from two
places.  As part of this commit, constness is added to PL_curlocales[]

Part of this change is to keep our records of LC_ALL on non-querylocale
systems always up-to-date, which is better practice

And part of this change is temporary, marked as such, to be removed a
few commits later.


  Commit: 2d590fbd33a570f6121260e7588a4d6be1dba894
      https://github.com/Perl/perl5/commit/2d590fbd33a570f6121260e7588a4d6be1dba894
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M intrpvar.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  Make three locale PL_ strings const char*

This adds some compile safety to these.


  Commit: d6bd11b5568c0946746dc8dfdd7af26be0bc4550
      https://github.com/Perl/perl5/commit/d6bd11b5568c0946746dc8dfdd7af26be0bc4550
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c Make a char * variable const

A future commit will want this


  Commit: 601aa67aec56269d4421c5c008861dad3eefca56
      https://github.com/Perl/perl5/commit/601aa67aec56269d4421c5c008861dad3eefca56
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M embedvar.h
    M intrpvar.h
    M locale.c
    M perl.c
    M proto.h
    M sv.c

  Log Message:
  -----------
  locale.c: Generalize stdize_locale()

This function is rewritten to handle LC_ALL, and to make it easier to
add new checks.

There is also a change, which I think is an improvement, in that everything
starting with a \n is trimmed, instead of just a trailing \n being

A couple of calls to stdize_locale() are removed, as they are redundant,
because they are called only as a result of Perl_setlocale() being
called, and that ends up calling stdize_locale always, early on.

The call to savepv() is also moved in a couple cases to after the result
is known to not be NULL

I originally had such a new check in mind, but it turned out that doing
it here didn't solve the problem, so this commit has been amended
(before ever being pushed) to not include that.
chomped.


  Commit: 00238f4792c56d863fc82546f659f13c829c3bc0
      https://github.com/Perl/perl5/commit/00238f4792c56d863fc82546f659f13c829c3bc0
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  XXX drop stdize_locale: #if 0, enabled even for emulate


  Commit: b412f03e02cebfe61f6d6c0e7d1217a15ee2043f
      https://github.com/Perl/perl5/commit/b412f03e02cebfe61f6d6c0e7d1217a15ee2043f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Refactor some derived #defines

The _c suffix is supposed to mean the category is known at compile time.
In some configurations this does not matter, and so I had named things
carelessly, so this might be confusing.  This commit fixes that.


  Commit: dec4ee86424007c92fa8f3cd0b4dee75288b19da
      https://github.com/Perl/perl5/commit/dec4ee86424007c92fa8f3cd0b4dee75288b19da
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Use setlocale() for init, not P2008

We have found bugs in the POSIX 2008 libc implementations on various
platforms.  This code, which does the initialization of locale handling
has always been very conservative, expecting possible failures due to
bugs in it our the libc implementations, and backing out if necessary to
a crippled, but workable state, if something goes wrong.

I think we should use the oldest, most stable locale implementation in
these circumstances


  Commit: 241a18aaf19f2e5a8a29507da67cde26cba70354
      https://github.com/Perl/perl5/commit/241a18aaf19f2e5a8a29507da67cde26cba70354
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Split aggregate LC_ALL from emulate_setlocale

This splits into a separate function the code necessary in some
Configurations to calculate LC_ALL from a potentially disparate
aggregate of categories having different locales.

This is being done just for readability, as this extensive code in the
middle of something else distracts from the main point.

A goto is hence replaced by a recursive call.


  Commit: 26cd555161e364d90f3dca1aa2d25eab6d2c4276
      https://github.com/Perl/perl5/commit/26cd555161e364d90f3dca1aa2d25eab6d2c4276
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Change internal variable name

The new name better reflects its purpose, so is less confusing


  Commit: 87ad9ce2cf2c3fa74351c145089bf0e30c0cde13
      https://github.com/Perl/perl5/commit/87ad9ce2cf2c3fa74351c145089bf0e30c0cde13
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Clean up handling of a glibc bug

This commit moves all mention of this bug to just the code that requires
it, and inlines a macro, making it easier to comprehend


  Commit: cba69c0e4f5a07315d2607effc8e831e508f12fe
      https://github.com/Perl/perl5/commit/cba69c0e4f5a07315d2607effc8e831e508f12fe
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Split ancillary from S_emulate_setlocale

This takes the code to update LC_ALL, used only in some Configurations,
out of the main line, making the main line more readable.

It also allows the removal of temporary code added a few commits back


  Commit: 12ec7782e220843c852f3635ba2eaea12d597ead
      https://github.com/Perl/perl5/commit/12ec7782e220843c852f3635ba2eaea12d597ead
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: locale "" can be disparate

Setting a locale "" means to get the value from environment variables.
These can set locale categories to different locales, and this needs to
be handled.  The logic before this commit only handled the disparate
case when the locale wasn't ""; but this was compensated for elsewhere.
A future commit will remove that compensation.


  Commit: 393ad4fcdfd738dbf79e885fa07e7139ed4e8a99
      https://github.com/Perl/perl5/commit/393ad4fcdfd738dbf79e885fa07e7139ed4e8a99
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  Split off setting locale to "" from S_emulate_setlocale

This is done for readability, to move the special casing of setting a
locale to the empty string (hence getting it from the environment) out
of the main line code.


  Commit: 0583a3462cc1c4395c35ac356c302021cbdf54d1
      https://github.com/Perl/perl5/commit/0583a3462cc1c4395c35ac356c302021cbdf54d1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M sv.c

  Log Message:
  -----------
  sv.c: Duplicate more variables during cloning

These locale-related ones should be getting initialized in the new
thread, but be certain.


  Commit: 1e7e487db42c45b10fa4acfdab3eead232ed266e
      https://github.com/Perl/perl5/commit/1e7e487db42c45b10fa4acfdab3eead232ed266e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M embedvar.h
    M intrpvar.h
    M locale.c
    M makedef.pl
    M perl.c
    M proto.h
    M sv.c

  Log Message:
  -----------
  locale.c: Add fcn to hide edge case undefined behavior

The POSIX 2008 API has an edge case in that the result of most of the
functions when called with a global (as opposed to a per-thread) locale
is undefined.

The duplocale() function is the exception which will create a per-thread
locale containing the values copied from the global one.

This commit just calls duplocale, if needed, and the caller need not
concern itself with this possibility


  Commit: 5e562fa64c5befb39acfafe37256a9aba51d147f
      https://github.com/Perl/perl5/commit/5e562fa64c5befb39acfafe37256a9aba51d147f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Add DEBUGGING information

These functions are called as expansions of macros.  It may be useful to
know where in the file the macro occurred.


  Commit: 4d8343a409009e24037c080330f88ea06256f033
      https://github.com/Perl/perl5/commit/4d8343a409009e24037c080330f88ea06256f033
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Separate out two Win fcns from a larger one

This makes the larger one easier to understand, and prepares for
possible independent calls to the two, which are potentially useful on
their own.


  Commit: 57b1c407a3696554e035df60ecf31825732544d0
      https://github.com/Perl/perl5/commit/57b1c407a3696554e035df60ecf31825732544d0
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  f XXX make fcns accessible to cygwin


  Commit: f4ff8468d47865bf47660f22f054a283424560f7
      https://github.com/Perl/perl5/commit/f4ff8468d47865bf47660f22f054a283424560f7
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M ext/POSIX/POSIX.xs

  Log Message:
  -----------
  POSIX.xs: Use macro to reduce complexity

This #defines a macro and uses it to populate a structure, so that
strings don't have to be typed twice.


  Commit: 1ba4655155b8e58fe29bbbdaaa1190ab684132d1
      https://github.com/Perl/perl5/commit/1ba4655155b8e58fe29bbbdaaa1190ab684132d1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M ext/POSIX/POSIX.xs

  Log Message:
  -----------
  POSIX.xs: White-space only

Properly indent some nested preprocessor directives


  Commit: 81ac2e899fef853f2fb23514043481ea01883914
      https://github.com/Perl/perl5/commit/81ac2e899fef853f2fb23514043481ea01883914
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M ext/POSIX/POSIX.xs
    M locale.c
    M proto.h

  Log Message:
  -----------
  Move code from POSIX.xs to locale.c

This avoids duplicated logic.


  Commit: d8f83be976804901be8436ac385694afc5eb860e
      https://github.com/Perl/perl5/commit/d8f83be976804901be8436ac385694afc5eb860e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Reorder cases in a switch

This moves handling the CODESET to the end, as future commits will make
its handling more complicated.  The cases are now ordered so the
simplest (based on the direction of future commits) are first


  Commit: f165b6f2d902ed394861f573dcf70357fc0c6319
      https://github.com/Perl/perl5/commit/f165b6f2d902ed394861f573dcf70357fc0c6319
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Make statics of repeated string constants

These strings are (or soon will be) used in multiple places; so have
just one definition for them.


  Commit: 1422505ebf7acc23564e6f0eac014bfa556c31ee
      https://github.com/Perl/perl5/commit/1422505ebf7acc23564e6f0eac014bfa556c31ee
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Add two #defines

This makes sure that we handle having any variant of nl_langinfo() or
localeconv().


  Commit: 7b923d5db0f2d35cf88e34de327e2bd05d3300e2
      https://github.com/Perl/perl5/commit/7b923d5db0f2d35cf88e34de327e2bd05d3300e2
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Return defaults for uncomputable langinfo items

Return the values from the C locale for nl_langinfo() items that aren't
computable on this platform.  If the platform has nl_langinfo(), then
all of them are computable, but if not, some can't be computed, and
others can be, but only if there are alternative methods available on
the platform.

As part of this commit, S_my_nl_langinfo() and S_save_to_buffer() are no
longer used when USE_LOCALE is not defined, so don't compile them.


  Commit: cc0f725c08820ad99122017fb8ecf67d3b84981f
      https://github.com/Perl/perl5/commit/cc0f725c08820ad99122017fb8ecf67d3b84981f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Rmv reimplementation of my_strftime()

Prior to this commit, there was a near duplicate copy of the code from
util.c that implements my_strftime().  This was done because the util.c
version zaps the wday field, which made it incompatible.

But it dawned on me that if the arbitrary date we use to do our
calculations were such that it was for a year in which January 1 falls
on a Sunday, then the util.c version automatically works.


  Commit: 48fcc8637b8a6ecc14528e26424db4772a825867
      https://github.com/Perl/perl5/commit/48fcc8637b8a6ecc14528e26424db4772a825867
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Shorten static function name

The extra syllable(s) are unnecessary noise


  Commit: 10626d4650db624f26f9b3187b9be4cf7456aa18
      https://github.com/Perl/perl5/commit/10626d4650db624f26f9b3187b9be4cf7456aa18
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Extend a static function

This will allow it to be used in situations where the buffer it controls
is single use, and we don't need to keep track of the size for future
calls.


  Commit: 98d5d89fd3fe927d58950dc706098f2362e1f70d
      https://github.com/Perl/perl5/commit/98d5d89fd3fe927d58950dc706098f2362e1f70d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Use typedef to simplify

This allows some preprocessor conditionals to be removed


  Commit: cb682d68d78ef5ff930cbd25e8842dae310c1bf2
      https://github.com/Perl/perl5/commit/cb682d68d78ef5ff930cbd25e8842dae310c1bf2
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Rmv redundant cBOOL()

strEQ and && already return booleans


  Commit: f46c3e0fbea60d6595f3860229f71118c14f3d98
      https://github.com/Perl/perl5/commit/f46c3e0fbea60d6595f3860229f71118c14f3d98
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Fix currency symbol derivation

On platforms without nl_langinfo(), we derive the currency symbol from
localeconv().  The symbol must be tweaked to conform to nl_langinfo()
standards.  Prior to this commit, it guessed at how to tweak a rare
circumstance.  I found evidence this guess was wrong, so looked around,
and copied the way cygwin does it.

This also no longer returns just an empty string in certain cases.
nl_langinfo() itself doesn't, so conform to that.


  Commit: d04a1e847b93f44a4147eea3fb95cef671a00096
      https://github.com/Perl/perl5/commit/d04a1e847b93f44a4147eea3fb95cef671a00096
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Don't add CP to Windows code page names

The actual name appears to be just the number for purposes of
nl_langinfo()-ish things.


  Commit: 82dc672b445d7754a7529eb4a7e24269ea73c1a4
      https://github.com/Perl/perl5/commit/82dc672b445d7754a7529eb4a7e24269ea73c1a4
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Don't ask a static fcn to be inlined

It's too complicated to really be inlined, and the compiler can figure
things out itself given it is a static function


  Commit: cd79a4bf6f378b0737c6a3dbf555d0f57a74fdd1
      https://github.com/Perl/perl5/commit/cd79a4bf6f378b0737c6a3dbf555d0f57a74fdd1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Rmv no longer used param from static fnc

Previous commits have gotten rid of this parameter to S_save_to_buffer


  Commit: a46e9f391845b7d6a9bdb05f9e2c14c7576b3eea
      https://github.com/Perl/perl5/commit/a46e9f391845b7d6a9bdb05f9e2c14c7576b3eea
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Don't change locale if already there

Changing the locale is cheap for some categories, but expensive for
others.  Changing LC_COLLATE is most expensive, requiring recalculation
of the collation transformation mapping.

This commit checks that we aren't already in the desired locale before
changing locales. and does nothing if no change is needed.


  Commit: 8df09faee6d1a809e548693c107ac1aa6608611c
      https://github.com/Perl/perl5/commit/8df09faee6d1a809e548693c107ac1aa6608611c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Use a scratch buf; instead of reusing old

This is in preparation for the next commit


  Commit: 3cdef8af9fa9eaa6e3aef48d24f546db4b92e3b9
      https://github.com/Perl/perl5/commit/3cdef8af9fa9eaa6e3aef48d24f546db4b92e3b9
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Make static fcn reentrant

This makes my_langinfo() reentrant by adding parameters specifying where
to store the result.

This prepares for future commits, and fixes some minor bugs for XS
writers, in that the claim was that the buffer in calling
Perl_langinfo() was safe from getting zapped until the next call to it
in the same thread.  It turns out there were cases where, because of
internal calls, the buffer did get zapped.


  Commit: 528834aed1f4035d1427f3074056c213e84d5ee9
      https://github.com/Perl/perl5/commit/528834aed1f4035d1427f3074056c213e84d5ee9
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: langinfo: Use Windows fcn to find CODESET

There is a Windows function, available for quite a long time, that will
return the current code page.  Use this for the nl_langinfo() CODESET,
as that libc function isn't implemented on Windows.


  Commit: 95d66bc6df9dedd751b4a010ef162a3541043868
      https://github.com/Perl/perl5/commit/95d66bc6df9dedd751b4a010ef162a3541043868
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Add static fcn to analyze locale codeset

It determines if the name indicates it is UTF-8 or not.  There are
several variant spellings in use, and this hides that from the the
callers.

It won't be actually used until the next commit


  Commit: 5742a1432c6ecc4f6c38ead7732949fb5de7523a
      https://github.com/Perl/perl5/commit/5742a1432c6ecc4f6c38ead7732949fb5de7523a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M ext/I18N-Langinfo/Langinfo.pm
    M locale.c

  Log Message:
  -----------
  locale.c: Improve non-nl_langinfo() CODESET calc

Prior to this commit, on non-Windows platforms that don't have a
nl_langinfo() libc function, the code completely punted computation of
the CODESET item.  I have not been able to figure out how to do this,
even going to the locale definition files on disk (which may vary
anyway), but we can do a lot better than punting.

This commit adds three checks:

1) If the locale name is C or POSIX, we know the codeset

2) We can detect if a locale is UTF-8.  If it is, that is the codeset.
Many modern locales are of this ilk.

3) Failing that, some locales have the codeset appear in the name,
following a dot.

It isn't perfect, but it's a lot better than completely punting.


  Commit: ce2ce08dfe119734eb55a207b2a38c5de0a03cc1
      https://github.com/Perl/perl5/commit/ce2ce08dfe119734eb55a207b2a38c5de0a03cc1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  Add toggle_locale() fcns

These are designed to temporarily switch the locale for a cateogry
around some operation that needs it to be different than the current
one.  They will be used in the next commit.

These will eventually replace the more unwieldy
_is_cur_LC_category_utf8() function, which toggles as a side effect


  Commit: 556127ea40c5d5f2a867422f8709685054f9a1de
      https://github.com/Perl/perl5/commit/556127ea40c5d5f2a867422f8709685054f9a1de
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  New signature for static fcn my_langinfo()

This commit changes the calling sequence for my_langinfo to add the
desired locale (or a sentinel to indicate to use the current locale),
and the locale category of the desired item.

This allows the function to be able to return the desired value for any
locale, avoiding some locale changes that would happen until this
commit, and hiding the need for locale changes from outside functions,
though a couple continue to do so to avoid potential multiple changes.


  Commit: 03a57c9db77a824ddbe91d110611b3645bf38d13
      https://github.com/Perl/perl5/commit/03a57c9db77a824ddbe91d110611b3645bf38d13
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Add is_locale_utf8()

Previous commits have added the infrastructure to be able to determine
if a locale is UTF-8.  This will prove useful, and this commit adds
a function to encapsulate this information, and uses it in a couple of
places, with more to come in future commits.

This uses as a final fallback, mbtowc(), which some sources view was a
late adder to C89, and others as not really being available until C99.
Future commits will add heuristics when that function isn't available.


  Commit: e934bf9ee817850a8c55a9416520269faab39864
      https://github.com/Perl/perl5/commit/e934bf9ee817850a8c55a9416520269faab39864
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Add fcn for UTF8ness determination

get_locale_string_utf8ness_i() will determine if the string it is passed
in the locale it is passed is to be treated as UTF-8, or not.


  Commit: c777ec63acc442d15edc70a1d4871b9f84eb351f
      https://github.com/Perl/perl5/commit/c777ec63acc442d15edc70a1d4871b9f84eb351f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M ext/POSIX/POSIX.xs
    M locale.c
    M proto.h

  Log Message:
  -----------
  XXX perldelta Move POSIX::localeconv() logic to locale.c

The code currently in POSIX.xs is moved to locale.c, and reworked some
to fit in that scheme, and the logic for the workaround for the Windows
broken localeconv() is made more robust.

This is in preparation for the next commit which will use this logic
instead of (imperfectly) duplicating it.

This also creates Perl_localeconv() for direct XS calls of this
functionality.


  Commit: d8d3cc5314aedc44a358767e233928b74bb697eb
      https://github.com/Perl/perl5/commit/d8d3cc5314aedc44a358767e233928b74bb697eb
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: localeconv() unconditional NUMERIC toggle

It is possible to lockout changing the LC_NUMERIC locale.  This is done
in some printf cases where a recursive call could get the radix
character wrong.  But localeconv(), which could be called during this
recursion on some platforms, toggles the locale briefly, without
affecting the surrounding calls; so it can do the toggle
unconditionally.

The previous commit merely moved the functionality of localeconv() from
POSIX.xs to locale.c.  This commit expands upon that.


  Commit: 87be61c797697ca4275823805651b04ecf069618
      https://github.com/Perl/perl5/commit/87be61c797697ca4275823805651b04ecf069618
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Collapse duplicate logic into one instance

The previous commit move the logic for localeconv() into locale.c.  This
commit takes advantage of that to use it instead of repeating the logic.

On Windows, there is alternative way of finding the radix character for
systems that have a localeconv() that could cause a race.  Prior to this
commit, if that failed to find something that looked like the radix, it
returned a '?'.  Now it will drop down to using this new code, as the
likelihood of the race is small.

Notably, this commit removes the inconsistent duplicate logic that had
been used to deal with the Windows broken localeconv() bug.


  Commit: ceed549f51d2f300d119b218eea7fce62b6ddd85
      https://github.com/Perl/perl5/commit/ceed549f51d2f300d119b218eea7fce62b6ddd85
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Fix windows bug with broken localeconv()

localeconv() was broken on Windows until VS 2015.  As a workaround, this
was using my_snprintf() to find what the decimal point character is,
trying to avoid our workaround for localeconv(), which has a (slight)
chance of a race condition.

The problem is that my_snprintf() might not end up calling snprintf at
all; I didn't trace all possibilities in Windows.  So it doesn't make
for a reliable sentinel.

This commit now specifically uses libc snprintf(), and if it fails, drops
down to try localeconv().


  Commit: 94e991a986cc03416635c08118d0a5b1706c4953
      https://github.com/Perl/perl5/commit/94e991a986cc03416635c08118d0a5b1706c4953
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M ext/POSIX/POSIX.xs
    M locale.c
    M proto.h

  Log Message:
  -----------
  XXXdelta Add my_strftime8()

This is like plain my_strftime(), but additionally returns an indication
of the UTF-8ness of the returned string


  Commit: 37d6415b8cf208aa283d8c782048097934eb3685
      https://github.com/Perl/perl5/commit/37d6415b8cf208aa283d8c782048097934eb3685
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Add utf8ness return param to static fcn

my_langinfo_i() now will additionally return the UTF-8ness of the
returned string.


  Commit: 5f2bf28b3f2a89a3c8bac9b13603d2269d1de172
      https://github.com/Perl/perl5/commit/5f2bf28b3f2a89a3c8bac9b13603d2269d1de172
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M ext/I18N-Langinfo/Langinfo.xs
    M locale.c
    M proto.h

  Log Message:
  -----------
  XXXdelta Add Perl_langinfo8()

This is like Perl_langinfo() but additionally returns information about
the UTF-8ness of the returned string.


  Commit: 94c1171f061bd36473e4b0b62322fd226818bea5
      https://github.com/Perl/perl5/commit/94c1171f061bd36473e4b0b62322fd226818bea5
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Add fallbacks if no mbtowc()

This add heuristics that work well for non-English locales to determine
if a locale is UTF-8 or not when mbtowc() isn't available.  It would be
a very rare compiler that didn't have that these days, but this covers
that case as best as I have been able to figure out.


  Commit: 2bc6ebf57a68b06be9c4f559e3a943fca1b96c53
      https://github.com/Perl/perl5/commit/2bc6ebf57a68b06be9c4f559e3a943fca1b96c53
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Use Strerror(), not strerror()


  Commit: 1fdec84ba922530513d77cf19dc25bbbbf16677e
      https://github.com/Perl/perl5/commit/1fdec84ba922530513d77cf19dc25bbbbf16677e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Refactor #ifdef's for clarity

The my_strerror() function has effectively 5 different implementations
depending on the capabilities of the platform.  Only a few lines are
common to all, the set-up and the return.  The #ifdefs obscure the
underlying logic.  So this commit separates them out into 5 different
functions, with the result that it's clear what is going on in each.


  Commit: 065a9247463210d200c67d38b0d50c8927c31797
      https://github.com/Perl/perl5/commit/065a9247463210d200c67d38b0d50c8927c31797
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  Avoid mojibake in "$!"

In stress testing, I discovered that the LC_CTYPE and LC_MESSAGES
locales need to be the same locale, or strerror() can return
question marks or mojibake instead of the proper message.

This commit refactors the handling of stringifying "$!" to make the
locales of both categories the same during the stringification.

Actually, I suspect it isn't the locale, but the codeset of the locale
that needs to be the same.  I suspect that if the categories were both
in different UTF-8 locales, or both in single-byte locales, that things
would work fine.  But it's cheaper to find the locale rather than the
locale's codeset, so that is what is done.


  Commit: 146885cc6cf33e269020bad6eb50237d30ec6b65
      https://github.com/Perl/perl5/commit/146885cc6cf33e269020bad6eb50237d30ec6b65
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M makedef.pl
    M mg.c
    M proto.h

  Log Message:
  -----------
  Move utf8ness calc for $! into locale.c from mg.c

locale.c has the infrastructure to handle this, so remove repeated
logic.

The removed code tried to discern better based on using script runs, but
this actually doesn't help, so is removed.


  Commit: 75ac9866922dcf4674d2125c8f3a32e63db4c10b
      https://github.com/Perl/perl5/commit/75ac9866922dcf4674d2125c8f3a32e63db4c10b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M mg.c

  Log Message:
  -----------
  mg.c: White-space only

Indent newly formed block from the previous commit.


  Commit: 868569ca6119ca8fa00214ab8893df94789376f3
      https://github.com/Perl/perl5/commit/868569ca6119ca8fa00214ab8893df94789376f3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M embedvar.h
    M intrpvar.h
    M locale.c
    M proto.h
    M sv.c

  Log Message:
  -----------
  locale.c: Rmv no longer used code; UTF8ness cache

What these functions do has been subsumed by code introduced in previous
commits, and in a more straight forward manner.

Also removed in this commit is the cache of the knowing what locales are
UTF-8 or not.  This data is now cheaper to calculate when needed, and
there is now a single entry cache, so I don't think the complexity
warrants keeping it.

It could be added back if necessary, split off from the remainder of
this commit.


  Commit: b45385afc24ac15c0b01d862a0760a151d956c2d
      https://github.com/Perl/perl5/commit/b45385afc24ac15c0b01d862a0760a151d956c2d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  Don't discard locale info in starting P2008

The program is started in the global locale, and then is converted to
the POSIX 2008 per-thread locale API.  Prior to this commit the startup
locale was discarded.  It really should be the foundation for the 2008
locales.  I don't know of any current paths through the code that this
makes a difference for, but it is a potential hole that is easy to plug.


  Commit: 51a8b425d5d9fbde30168abfc8a301fac094d27d
      https://github.com/Perl/perl5/commit/51a8b425d5d9fbde30168abfc8a301fac094d27d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M perl.h
    M proto.h

  Log Message:
  -----------
  Add a common locale panic macro and functions

This will make sure that all the necessary clean up gets done.


  Commit: 304a71bb4b2a70add018d5efae1d57b0c2d63067
      https://github.com/Perl/perl5/commit/304a71bb4b2a70add018d5efae1d57b0c2d63067
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Clean up thread_locale_init()

We can use internal functions to this file instead of the API ones here.
This commit also calls  sync_locale() to avoid repeated logic.


  Commit: 427b4693804cb455ba4a386b8bc2d72fe54a9d54
      https://github.com/Perl/perl5/commit/427b4693804cb455ba4a386b8bc2d72fe54a9d54
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Omit an extra copy

In this case in Perl_setlocale(), we can just return the plain result
from setlocale(), as, if something further needs to be done that would
destroy it, that is taken care of already at the time.

On per-thread locale platforms, the result already is in a per-category
buffer.


  Commit: 3bb9fe2a75b2bd6a52d97940c82ca2121df12469
      https://github.com/Perl/perl5/commit/3bb9fe2a75b2bd6a52d97940c82ca2121df12469
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embedvar.h
    M intrpvar.h
    M locale.c
    M makedef.pl
    M perl.c
    M sv.c

  Log Message:
  -----------
  locale.c: Cache the current LC_CTYPE locale name

This is now used as a cache of length 1 to avoid having to lookup up the
UTF-8ness as often.

There was a complicated cache previously, but changes to the logic
caused that to be much less necessary, and it is no longer actually
used, and will be removed in a later commit.

But it's pretty easy to keep this single value around to cut further
down the new scheme's need to look it up

This commit also skips doing S_newctype() if the new boss is the same as
the old


  Commit: 9f5c88d29d93e545a9a2eb445e58e8cd398ded92
      https://github.com/Perl/perl5/commit/9f5c88d29d93e545a9a2eb445e58e8cd398ded92
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M intrpvar.h

  Log Message:
  -----------
  intrpvar.h: Initialize a variable

I don't believe there is a bug with this PL_numeric_name being
uninitialized, but this is an easy precaution.


  Commit: 57b41a684b9d45b2e027c0e048a1ed3e3f63ac6b
      https://github.com/Perl/perl5/commit/57b41a684b9d45b2e027c0e048a1ed3e3f63ac6b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c
    M perl.h

  Log Message:
  -----------
  Swap the ordering of two locale category indices

Perl internally uses a mapping of locale category values into a
consecutive sequence of indices starting at 0.  These are used as
indexes into arrays.  The reason is that the category numbers are
opaque, vary by platform, aren't necessarily sequential, and hence are
hard to make table driven code for.

This commit makes the LC_CTYPE index 0, and LC_NUMERIC equal to 1;
swapping them.  The reason is to cause LC_CTYPE to get done first in the
many loops through the categories.  The UTF8ness of categories is an
often needed value, and most of the time the categories will have the
same locale.  LC_CTYPE is needed to calculate the UTF8ness, and by doing
it first and caching the result, the other categories likely
automatically will use the same value, without having to recalculate.


  Commit: d5ab7dae1f79d08806ec2b97073879112d141738
      https://github.com/Perl/perl5/commit/d5ab7dae1f79d08806ec2b97073879112d141738
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Use new mechanism to save/restore errno

Instead of explicitly saving the errno around debugging statements, the
new more general mechanism is used.


  Commit: 4c37f1fe403902ec6df34ce6918161534ec1ab40
      https://github.com/Perl/perl5/commit/4c37f1fe403902ec6df34ce6918161534ec1ab40
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Move DEBUG location info

This commit takes advantage of the new mechanism to add common DEBUGGING
code to print the __FILE__ and __LINE__ of every debugging statement.
This allows those to be removed from each statement, and have them
implicitly added.

This make things consistent, and easier to read and add new statements.


  Commit: 16b07dcaec2f528b29293fc09feedea1b0f7e277
      https://github.com/Perl/perl5/commit/16b07dcaec2f528b29293fc09feedea1b0f7e277
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Add some asserts


  Commit: 06ab89385c068156d328ac10e2ddcc82f64a9ad6
      https://github.com/Perl/perl5/commit/06ab89385c068156d328ac10e2ddcc82f64a9ad6
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Reorder code, rmv unneeded conditional

Previous commits have made the conditional about being able to find the
radix character unnecessary.  The called function my_langinfo_c()
handles the case properly.

This commit also makes the trivial case first in a conditional, as that
is easier to comprehend.


  Commit: da328f73d249011b8ad5bfe9ea72b2117d5c5a51
      https://github.com/Perl/perl5/commit/da328f73d249011b8ad5bfe9ea72b2117d5c5a51
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Reorder 'if' branches

It's better for understandability to have positive tests than negative
ones


  Commit: 1c86ea258fee604d28d4098b53eb2b7d5bb06c88
      https://github.com/Perl/perl5/commit/1c86ea258fee604d28d4098b53eb2b7d5bb06c88
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Refactor a static function

S_new_numeric() is called after the LC_NUMERIC category is changed, to
update various ancillary information Perl keeps.

This reorders the function so that on POSIX 2008 platforms, the numeric
object is created earlier.  This allows for fewer operations on those
platforms, as we already have the correct value in place for querying
what the radix and thousands separator characters are.

Explanatory comments are also added.


  Commit: fec7bc237ead882f4c42ec416a45836dbe03f978
      https://github.com/Perl/perl5/commit/fec7bc237ead882f4c42ec416a45836dbe03f978
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Rmv unused code

The code to handle changing LC_NUMERIC and LC_COLLATION handled the
possibility of being passed a NULL locale name.  But we're not changing
things unless we have a new locale, and know its name, so a name is
always passed


  Commit: 479e83b631a04271b01f26394fd1b558cff29b5f
      https://github.com/Perl/perl5/commit/479e83b631a04271b01f26394fd1b558cff29b5f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Rmv unnecessary savepv()

This moves the savepv() down in the function, after we know we need it.


  Commit: 4282ee8365bbf734c15892d7ace679b6ed6f1aac
      https://github.com/Perl/perl5/commit/4282ee8365bbf734c15892d7ace679b6ed6f1aac
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Mv line of code later in fcn

This avoids setting this until needed.


  Commit: 2220c80f65d92d199feec517b62e02a780b64bed
      https://github.com/Perl/perl5/commit/2220c80f65d92d199feec517b62e02a780b64bed
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Skip code if will be a no-op

The previous commits have fixed things up so that at this point in the
code nothing has changed, and if nothing will change, we can just return


  Commit: e2a299fa9cfb2e938857541fef3db3c6766e25be
      https://github.com/Perl/perl5/commit/e2a299fa9cfb2e938857541fef3db3c6766e25be
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Specially handle the trivial case

When setting the numeric radix character, and the locale is C or POSIX,
we know it's going to be a dot without having to look further.  All the
ancillary info is also known.  So save time and just set these all and
return.


  Commit: 86343f884999989ad479550e5d6d90bfd38079bf
      https://github.com/Perl/perl5/commit/86343f884999989ad479550e5d6d90bfd38079bf
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M intrpvar.h
    M numeric.c

  Log Message:
  -----------
  numeric.c, intrpvar.h: Rmv outdated condition, comment

It hasn't been true for some releases that the SV was removed when the
radix was a dot.  Instead the SV contains the correct decimal point
character at all times.


  Commit: 8baf13020e272c2e50b847c96bf72bb6c45d94d8
      https://github.com/Perl/perl5/commit/8baf13020e272c2e50b847c96bf72bb6c45d94d8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Swap setting related variables

It is clearer to use the variable more directly related to what is being
set; then set the more distantly related onve, than vice versa


  Commit: 3912e6ba67fde5c8f6cf30ea62594450f41dbb7b
      https://github.com/Perl/perl5/commit/3912e6ba67fde5c8f6cf30ea62594450f41dbb7b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Rmv special case

At this point in the code, we know we are already switched into the
underlying numeric locale; there's no need to further check to see if
switching is necessary.


  Commit: 6458c7640354656d7f4fd302237e886324fe5f61
      https://github.com/Perl/perl5/commit/6458c7640354656d7f4fd302237e886324fe5f61
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embedvar.h
    M intrpvar.h
    M locale.c
    M perl.c
    M sv.c

  Log Message:
  -----------
  locale.c: Save underlying radix character

When changing locales the new decimal point needs to be calculated.
This commit creates a new per-interpreter variable to save that
calculation, so it only has to be done when a new locale is set; prior
to this commit it was recalculated each time it was needed.

The calculation is still performed twice when the new locale is switched
into.  But the redundant calculation will be removed in a couple of
commits hence.


  Commit: 8e4618fcd8701d65e100a6b089c57329ae4ecd29
      https://github.com/Perl/perl5/commit/8e4618fcd8701d65e100a6b089c57329ae4ecd29
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Move debug stmt to earlier in fcn


  Commit: 6e92ed7f7a322aec36ceb0ff94deac0e7f6708da
      https://github.com/Perl/perl5/commit/6e92ed7f7a322aec36ceb0ff94deac0e7f6708da
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c

  Log Message:
  -----------
  locale.c: Rmv S_set_numeric_radix()

Previous commits have made this function much smaller, and its branches
can be easily absorbed into the callers, with clearer code, and in fact
removal of a redundant calculation of the locale's radix character,
promised in a previous commit's message


  Commit: 064c15bd22db4f9359e0b2be158eceac301a14ba
      https://github.com/Perl/perl5/commit/064c15bd22db4f9359e0b2be158eceac301a14ba
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  XXXfinish commit msg locale.c: Rmv some special cases

The previous commits have allowed the removal of special casing of
making sure the


  Commit: 04bf0e7708010267a42945e8f6a7da63870e81ac
      https://github.com/Perl/perl5/commit/04bf0e7708010267a42945e8f6a7da63870e81ac
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Change assert() into STATIC_ASSERT()


  Commit: 2c3f92ad98ce47fc3e38e95f84b25e34bfe3735c
      https://github.com/Perl/perl5/commit/2c3f92ad98ce47fc3e38e95f84b25e34bfe3735c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Use standard fold table for C locale

Copy the standard compiled-in ASCII fold table when the locale is C or
POSIX, instead of looping through all 256 characters and computing them.
This saves some time as well as ensures that any platform bugs become
irrelevant.


  Commit: f6634c7b06ad43f50ef9b8bc79a4a828e087bcaa
      https://github.com/Perl/perl5/commit/f6634c7b06ad43f50ef9b8bc79a4a828e087bcaa
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Add check that strxfrm didn't fail

The code failed to take into account that strxfrm() can fail for reasons
besides buffer length.  It does not return errors, and the only way to
check is to set errno to 0 beforehand, and check that it is still 0
afterwards.


  Commit: 28bd84481e98c1c1bde181e164714c5932c222be
      https://github.com/Perl/perl5/commit/28bd84481e98c1c1bde181e164714c5932c222be
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Don't assume LC_CTYPE, LC_COLLATE are same

This code is using isCNTRL_LC which depends on LC_CTYPE to verify that
something in the LC_COLLATE locale is a control.  That only works
properly if the two locales are the same.  This commit adds code to
ensure they are.


  Commit: 6bd5198fad7d6da45457aca0f69dc169a2abbd80
      https://github.com/Perl/perl5/commit/6bd5198fad7d6da45457aca0f69dc169a2abbd80
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: strxfrm() requires LC_CTYPE eq LC_COLLATE

The libc functions strxfrm() on some platforms requires the LC_CTYPE
locale to be the same as the LC_COLLATE locale (or rather, probably that
they have the same code set, but checking for locale is cheaper).
Otherwise mojibake would result, or more likely the function will fail,
setting errno.

This commit brings the locales into alignment if necessary


  Commit: 4aee68e11232026f9a82b9111bf94a55a6d89e1e
      https://github.com/Perl/perl5/commit/4aee68e11232026f9a82b9111bf94a55a6d89e1e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M Configure
    M Cross/config.sh-arm-linux
    M Cross/config.sh-arm-linux-n770
    M NetWare/config.wc
    M Porting/config.sh
    M config_h.SH
    M configure.com
    M metaconfig.h
    M plan9/config_sh.sample
    M uconfig.h
    M uconfig.sh
    M uconfig64.sh
    M win32/config.gc
    M win32/config.vc

  Log Message:
  -----------
  Configure: strxfrm_l


  Commit: 544e3fcf76899a697b1ae5f84de71c8d37e66815
      https://github.com/Perl/perl5/commit/544e3fcf76899a697b1ae5f84de71c8d37e66815
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M lib/locale.t

  Log Message:
  -----------
  XXX temp: lib/locale.t: debug


  Commit: 356c32fca606113af8d992663ed1292a2b0822c3
      https://github.com/Perl/perl5/commit/356c32fca606113af8d992663ed1292a2b0822c3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Use strxfrm_l() if available

This more modern version of the function doesn't require us to change
locales.


  Commit: 74af043f904535f2b9fb64eaea27215cf8b5a011
      https://github.com/Perl/perl5/commit/74af043f904535f2b9fb64eaea27215cf8b5a011
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M mathoms.c
    M proto.h
    M sv.c

  Log Message:
  -----------
  Change name of internal function

This is in preparation for working on it; the new name, mem_collxfrm_ is
in compliance with the C Standard; the old was not.


  Commit: cb2e6467c24d0b94c8c811f7d78432c72d4efc25
      https://github.com/Perl/perl5/commit/cb2e6467c24d0b94c8c811f7d78432c72d4efc25
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M ext/POSIX/POSIX.xs
    M ext/POSIX/lib/POSIX.pod
    M locale.c
    M proto.h

  Log Message:
  -----------
  XXXdelta Fix POSIX::strxfrm()

This function takes an SV containing a PV.  The encoding of that PV is
based on the locale of the LC_CTYPE locale.  It really doesn't make
sense to collate based off of the sequencing of a different locale, which
prior to this commit it would do if the LC_COLLATION locale were
different.


  Commit: d12ad632b794e690bdb0531edba31a22eb05e024
      https://github.com/Perl/perl5/commit/d12ad632b794e690bdb0531edba31a22eb05e024
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Improve debugging for mem_collxfrm()

This prints out more information, better organized.

It also moves up the info from -DLv to plain -DL


  Commit: 7bff698352baee2453155a32bce4f60757ec564d
      https://github.com/Perl/perl5/commit/7bff698352baee2453155a32bce4f60757ec564d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Add debug statement for collation failure

Perhaps this should be a warning to the user that we couldn't calculate
collation info for the locale, but at least there should be a way to
get that info from a DEBUG statement


  Commit: 3271ef63e1db33c3ce4be8ef045b58e00c1ff906
      https://github.com/Perl/perl5/commit/3271ef63e1db33c3ce4be8ef045b58e00c1ff906
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Print code point in hex, not decimal

Hex is the more familiar form


  Commit: 4bbf51fbe2729a1539aa67fdbfe3972e9115bd12
      https://github.com/Perl/perl5/commit/4bbf51fbe2729a1539aa67fdbfe3972e9115bd12
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M ext/POSIX/POSIX.xs
    M locale.c
    M perl.h

  Log Message:
  -----------
  Mark certain mutex lock macros as private

mbtowc() mblen(), and wctomb() should not be directly used by XS
writers; instead use the POSIX versions.  Don't encourage the direct use
by having public macros to aid in their use.


  Commit: a9aac6e3ad2d0a4e069bf67e1d46692bb5fb2485
      https://github.com/Perl/perl5/commit/a9aac6e3ad2d0a4e069bf67e1d46692bb5fb2485
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  perl.h: Move some code around

This is purely to make future commits have smaller real difference
listings, and involves a temporary (complemented) copy of a preprocessor
conditional.


  Commit: 69cdba821ea15b9af05a4de8e72b40ce15e21dd5
      https://github.com/Perl/perl5/commit/69cdba821ea15b9af05a4de8e72b40ce15e21dd5
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  perl.h: Reorder cpp branches

Disposing of the trivial case first makes things easier to read.


  Commit: c5fa6048fcdb09f63c686d6d1ad10544f16aeb39
      https://github.com/Perl/perl5/commit/c5fa6048fcdb09f63c686d6d1ad10544f16aeb39
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embedvar.h
    M intrpvar.h
    M locale.c
    M makedef.pl
    M perl.h
    M sv.c

  Log Message:
  -----------
  Make the locale mutex a general semaphore

Future commits will use this new capability, and in Configurations where
no locale locking is currently necessary.


  Commit: 5956c76e246df44ce4cd067fbfb7cfd2e2477d8e
      https://github.com/Perl/perl5/commit/5956c76e246df44ce4cd067fbfb7cfd2e2477d8e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embedvar.h
    M intrpvar.h
    M makedef.pl
    M perl.h
    M perlvars.h
    M sv.c

  Log Message:
  -----------
  Use general locale mutex for numeric operations

This commit removes the separate mutex for locking locale-related
numeric operations on threaded perls; instead using the general locale
one.  The previous commit made that a general semaphore, so now suitable
for use for this purpose as well.

This means that the locale can be locked for the duration of some
sprintf operations, longer than before this commit.  But on most modern
platforms, thread-safe locales cause this lock to expand just to a
no-op; so there is no effect on these.  And on the impacted platforms,
one is not supposed to be using locales and threads in combination, as
races can occur.  This lock is used on those perls to keep Perl's
manipulation of LC_NUMERIC thread-safe.  And for those there is also no
effect, as they already lock around those sprintf's.


  Commit: d76bd5542e21fe8bddf2d131a8c30d69a939d981
      https://github.com/Perl/perl5/commit/d76bd5542e21fe8bddf2d131a8c30d69a939d981
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  Add locale macro to wrap static-space-using fncs

Some functions return a result in a global-to-the-program buffer, or
they have an internal global buffer.  Other threads must be kept from
simultaneously using that function.  This macro is to be used for all
such ones dealing with locales.  Ideally, there would be a separate mutex
for each such buffer space.  But these functions also have to lock the
locale from changing during their execution, and there aren't that many
such functions, and they actually are rarely executed.  So a single lock
will do.

This will allow future commits to have more targeted locking for
functions that don't affect the global locale.


  Commit: 585671dc9ee1bb38d17393c4041e2ad6a0b532da
      https://github.com/Perl/perl5/commit/585671dc9ee1bb38d17393c4041e2ad6a0b532da
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  Redefine the POSIX.xs locale macros using prev commit

This commit uses the new macro introduced in the previous commit to
define the internal locale mutex macros in POSIX.xs


  Commit: c1aa829e77a05193c57c5b4187c4d2604b46a6bc
      https://github.com/Perl/perl5/commit/c1aa829e77a05193c57c5b4187c4d2604b46a6bc
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c
    M perl.h

  Log Message:
  -----------
  perl.h: Remove NL_LANGINFO_LOCK

This is needed in precisely one place in the code, so move it to there.


  Commit: 237d69384301a6900935462e41a6491d4012b875
      https://github.com/Perl/perl5/commit/237d69384301a6900935462e41a6491d4012b875
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c
    M perl.h

  Log Message:
  -----------
  perl.h: Remove LOCALECONV_LOCK

This is needed in just one function, in locale.c, so more it there.


  Commit: e01d1f7684d7225def36dcbed20b950c35a35f98
      https://github.com/Perl/perl5/commit/e01d1f7684d7225def36dcbed20b950c35a35f98
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c
    M perl.h

  Log Message:
  -----------
  XXX perlembed Add PORCELAIN_SETLOCALE_LOCK/UNLOCK

This macro is used to surround raw setlocale() calls so that the return
value in a global static buffer can be saved without interference with
other threads.

There are a few very rarely occurring instances in locale.c that are
converted to use this.  These previously could have been races.

The raw setlocales in the initialization function are not guarded, as
these happen early in the Perl process initialization, before threading
is enabled.

This is buggy if there are multiple embedded perls.  It can't be helped.
perlembed is being updated to indicate this.


  Commit: eb251896eaa6c30c72eb88d647d684234bbaa6cb
      https://github.com/Perl/perl5/commit/eb251896eaa6c30c72eb88d647d684234bbaa6cb
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  perl.h: Move #defining SETLOCALE_LOCK

This simplifies slightly, and will allow further simplification


  Commit: 83fcf9ebb5216fc574f851adb009ab8200c72678
      https://github.com/Perl/perl5/commit/83fcf9ebb5216fc574f851adb009ab8200c72678
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  perl.h: Move LOCALE_READ_LOCK #definition

To enable future simplifications


  Commit: d7c6364b18640a3358a640a57cee0e8bad40c772
      https://github.com/Perl/perl5/commit/d7c6364b18640a3358a640a57cee0e8bad40c772
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M intrpvar.h
    M locale.c
    M makedef.pl
    M perl.c
    M perl.h
    M sv.c

  Log Message:
  -----------
  locale.c: Move #define to perl.h; use it elsewhere

 Rather than recalculate this combined conditional, do it once in
 perl.h.


  Commit: 37c1ff153e54ba7c8e75408277c7b45837c8a542
      https://github.com/Perl/perl5/commit/37c1ff153e54ba7c8e75408277c7b45837c8a542
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Mitigate unsafe threaded locales

This a new set of macros and functions to do locale changing and
querying for platforms where perl is compiled with threads, but the
platform doesn't have thread-safe locale handling.

All it does is:

1) The return of setlocale() is always safely saved in a per-thread
buffer, and
2) setlocale() is protected by a mutex from other threads which are
using perl's locale functions.

This isn't much, but it might be enough to get some programs to work on
such platforms which rarely change or query the locale.


  Commit: fd877cf3c4dd3ae309a164eb20d900de2446fe81
      https://github.com/Perl/perl5/commit/fd877cf3c4dd3ae309a164eb20d900de2446fe81
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  XXX make sure comments get moved appropriately perl.h: Remove now empty block

Previous commits have left this empty except for comments.


  Commit: 4f0f3e21a7a7a60e651f54e9b64cfcec0e73a13c
      https://github.com/Perl/perl5/commit/4f0f3e21a7a7a60e651f54e9b64cfcec0e73a13c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M pp.c

  Log Message:
  -----------
  XXX pp.c: do %g print under mutex,


  Commit: b653d9264ebe54a8e72e01a66c9520ce2860e08a
      https://github.com/Perl/perl5/commit/b653d9264ebe54a8e72e01a66c9520ce2860e08a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M ebcdic_tables.h
    M embedvar.h
    M globvar.sym
    M inline.h
    M intrpvar.h
    M perl.h
    M regen/ebcdic.pl
    M sv.c

  Log Message:
  -----------
  Make fc(), /i thread-safe on participating platforms

A long standing bug in Perl that has gone undetected is that the array
is global that is created when changing locales and tells fc() and qr//i
matching what the folds are in the new locale.

What this means is that any program only has one set of fold definitions
that apply to all threads within it, even if we claim that the locales
are thread-safe on the given platform.  One possibility for this going
undetected so long is that no one is using locales on multi-threaded
systems much.  Another possibility is that modern UTF-8 locales have the
same set of folds as any other one.

It is a simple matter to make the fold array per-thread instead of
per-process, and that solves the problem transparently to other code.

I discovered this stress-testing locale handling under threads.  That
test will be added in a future commit.


  Commit: 6f68caa871eaad3b2f4d00d9181bc340129f9de3
      https://github.com/Perl/perl5/commit/6f68caa871eaad3b2f4d00d9181bc340129f9de3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M inline.h
    M locale.c

  Log Message:
  -----------
  locale.c/inline.h: Add fold calc debug statements

Under verbose debugging, this shows non-standard folds


  Commit: cac1edfed8d40975fe9060871cfde5d557942b6e
      https://github.com/Perl/perl5/commit/cac1edfed8d40975fe9060871cfde5d557942b6e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c comments


  Commit: 23cba9f08b4f484aa41654da0a3a6966e9721780
      https://github.com/Perl/perl5/commit/23cba9f08b4f484aa41654da0a3a6966e9721780
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  XXX prob drop; done before anything so no races


  Commit: 3b4a3f877d0e4925115af6cc522f062e42842b1d
      https://github.com/Perl/perl5/commit/3b4a3f877d0e4925115af6cc522f062e42842b1d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  perl.h: Add #define for gwENVr_LOCALEr_UNLOCK

This is for functions that read the locale and environment and write to
some global space.


  Commit: bc839ae968599d6a5860c13a097f825fd10d7f7c
      https://github.com/Perl/perl5/commit/bc839ae968599d6a5860c13a097f825fd10d7f7c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M perl.h
    M time64.c

  Log Message:
  -----------
  Remove ENV_LOCALE_LOCK/UNLOCK macros

These are subsumed by gwENVr_LOCALEr_LOCK created in the previous
commit.


  Commit: 9128f07a74262c17c6daf2730d417741f3e8ca76
      https://github.com/Perl/perl5/commit/9128f07a74262c17c6daf2730d417741f3e8ca76
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M perl.h
    M time64.c
    M util.c

  Log Message:
  -----------
  Change ENV/LOCALE locking read macro names

The old name was confusing.


  Commit: 50ca151840654f7ad83767241b79e163d2bd0ce0
      https://github.com/Perl/perl5/commit/50ca151840654f7ad83767241b79e163d2bd0ce0
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  perl.h: Move some statements

So they are closer to related statements


  Commit: 3e55e496a9d80b7278aa02b2613a6e81a21547b5
      https://github.com/Perl/perl5/commit/3e55e496a9d80b7278aa02b2613a6e81a21547b5
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M perl.h
    M util.c

  Log Message:
  -----------
  perl.h: Finish implementing combo ENV/LOCALE mutexes

There are cases where an executing function is vulnerable to either the
locale or environment being changed by another thread.  This commit
implements macros that use mutexes to protect these critical sections.
There are two cases that exist:  one where the functions only read; and
one where they can also need exclusive control so that a competing
thread can't overwrite the returned static buffer before it is safely
copied.

5.32 had a placeholder for these, but didn't actually implement it.
Instead it locked just the ENV portion.  On modern platforms with
thread-safe locales, the locale portion is a no-op anyway, so things
worked on them.

This new commit extends that safety to other platforms.  This has long
been a vulnerability in Perl.


  Commit: 5ed07ce14b479b3b0918e83b79edd46592bed137
      https://github.com/Perl/perl5/commit/5ed07ce14b479b3b0918e83b79edd46592bed137
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M time64.c

  Log Message:
  -----------
  time64.c: Remove no longer needed code

This code defined some macros; those are now defined by perl.h


  Commit: ca40e73b5da32f9fd91d91d42323c4d48f83d705
      https://github.com/Perl/perl5/commit/ca40e73b5da32f9fd91d91d42323c4d48f83d705
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M pp_sys.c

  Log Message:
  -----------
  XXX need to StructCopy pp_sys mutexes


  Commit: df19306d8e22784a99fdeae59762afd0bd05c7c2
      https://github.com/Perl/perl5/commit/df19306d8e22784a99fdeae59762afd0bd05c7c2
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M win32/win32.c

  Log Message:
  -----------
  win32.c: Add mutexes around some calls

These could have races.


  Commit: 3ea7b3295a2b997a67176a292aac6de38b6d6a50
      https://github.com/Perl/perl5/commit/3ea7b3295a2b997a67176a292aac6de38b6d6a50
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M ext/POSIX/POSIX.xs

  Log Message:
  -----------
  POSIX.xs env locks, check file for more


  Commit: 3f5c9662c08ea4530697962ce5c00b528d5690b6
      https://github.com/Perl/perl5/commit/3f5c9662c08ea4530697962ce5c00b528d5690b6
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M util.c

  Log Message:
  -----------
  util.c: mktime needs to run under a mutex

per the Posix standard


  Commit: 03e46444d4fe01f8d8de4ec30f2c1085b4643fa4
      https://github.com/Perl/perl5/commit/03e46444d4fe01f8d8de4ec30f2c1085b4643fa4
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M util.c

  Log Message:
  -----------
  util.c: Add locks around strftime() calls


  Commit: be2a20c3894556d4ff3c4c6d0f16249e279e62b8
      https://github.com/Perl/perl5/commit/be2a20c3894556d4ff3c4c6d0f16249e279e62b8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M os2/os2.c

  Log Message:
  -----------
  os2: Use many reader lock instead of exclusive

This is just reading the environment, not changing it, so a many readers
can be accessing it at the same time.


  Commit: 658fad6cac3f9825888c0a8c577e650e430a7e92
      https://github.com/Perl/perl5/commit/658fad6cac3f9825888c0a8c577e650e430a7e92
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M cpan/Time-Piece/Piece.pm
    M cpan/Time-Piece/Piece.xs

  Log Message:
  -----------
  XXX cpan PR Time-Piece: Add locks

This add mutex locking around some unsafe thread operations to make this
module thread-safe.


  Commit: 4dcd97154a42a31f7a96d296dc8dd83c25f1e623
      https://github.com/Perl/perl5/commit/4dcd97154a42a31f7a96d296dc8dd83c25f1e623
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M cpan/Time-Piece/Piece.xs

  Log Message:
  -----------
  Time-Piece: Use foldEQ_locale() if available

This supported core function is thread-safe and knows about Perl
internals, so is preferable to the similar libc function, which is now
used only as a fallback.  This commit also bomb proofs the code by
adding an additional fallback, specified in C89, which isn't a great
substituted, but far better than nothing.


  Commit: 4e0c04354c8a5feec200f2714eb462732af22396
      https://github.com/Perl/perl5/commit/4e0c04354c8a5feec200f2714eb462732af22396
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M cpan/Time-Piece/Piece.xs

  Log Message:
  -----------
  Time-Piece: Use isSPACE, not isspace

The latter gives results that are dependent on the program's underlying
locale, and so may be inconsistent.

If locale dependence is actually desired, isSPACE_LC should be used, as
it knows about various things the module writer shouldn't have to
concern themselves with.  It is supported since 5.004


  Commit: 45bf370b738b2964a03a8521ef590e73538c80f1
      https://github.com/Perl/perl5/commit/45bf370b738b2964a03a8521ef590e73538c80f1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M cpan/Time-Piece/Piece.xs

  Log Message:
  -----------
  Time-Piece: Use isDIGIT, not isdigit

The latter gives results that are dependent on the program's underlying
locale, and so may be inconsistent.

If locale dependence is actually desired, isDIGIT_LC should be used, as
it knows about various things the module writer shouldn't have to
concern themselves with.  It is supported since 5.004


  Commit: 3fe300e97bc6451902e121e34c5f9bac16dbef45
      https://github.com/Perl/perl5/commit/3fe300e97bc6451902e121e34c5f9bac16dbef45
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M cpan/Time-Piece/Piece.xs

  Log Message:
  -----------
  Time-Piece: Use isUPPER, not isupper

The latter gives results that are dependent on the program's underlying
locale, and so may be inconsistent.

If locale dependence is actually desired, isUPPER_LC should be used, as
it knows about various things the module writer shouldn't have to
concern themselves with.  It is supported since 5.004


  Commit: fb03eee7e6af5f9ef931fa008c5a865cfb5843c4
      https://github.com/Perl/perl5/commit/fb03eee7e6af5f9ef931fa008c5a865cfb5843c4
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M pod/perlhacktips.pod

  Log Message:
  -----------
  XXX incomplete perlhacktips:


  Commit: bf64df56ae4c8bc594e9481a71743b5cd1d02405
      https://github.com/Perl/perl5/commit/bf64df56ae4c8bc594e9481a71743b5cd1d02405
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M dist/IO/IO.pm
    M dist/IO/IO.xs

  Log Message:
  -----------
  XXX check if using ppport IO.xs: Remove fallback code furnished by ppport


  Commit: bd40fab4511932a0c6073d4491b2df2d99c1110a
      https://github.com/Perl/perl5/commit/bd40fab4511932a0c6073d4491b2df2d99c1110a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M hints/freebsd.sh

  Log Message:
  -----------
  XXX check with freebsd: hints/freebsd.sh


  Commit: 25edba5a36fbb8d3324d3180ac3fc84ba5291701
      https://github.com/Perl/perl5/commit/25edba5a36fbb8d3324d3180ac3fc84ba5291701
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M thread.h

  Log Message:
  -----------
  thread.h: White-space, braces only


  Commit: ca0c2604c09ac7d5e848e178f01795923887e10d
      https://github.com/Perl/perl5/commit/ca0c2604c09ac7d5e848e178f01795923887e10d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M thread.h

  Log Message:
  -----------
  XXX thread.h Save errno around lock/unlock


  Commit: 7f816ea5774189ca5c86bd64afcf17a3ad856ae4
      https://github.com/Perl/perl5/commit/7f816ea5774189ca5c86bd64afcf17a3ad856ae4
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  XXX perl.h: Debugging mutex lock'


  Commit: fb84ae5cc7f31530defef089de3cc94911251611
      https://github.com/Perl/perl5/commit/fb84ae5cc7f31530defef089de3cc94911251611
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M ext/POSIX/POSIX.xs
    M locale.c
    M perl.h

  Log Message:
  -----------
  locks


  Commit: 83046e6978b8cc96b804d31f35e361bdc5eb0905
      https://github.com/Perl/perl5/commit/83046e6978b8cc96b804d31f35e361bdc5eb0905
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  XXX locale.c: Kludge because C obj getting destroyed


  Commit: cd92aa0e098a26e5248aaf4dde6c98f4617b1b3d
      https://github.com/Perl/perl5/commit/cd92aa0e098a26e5248aaf4dde6c98f4617b1b3d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M .github/workflows/testsuite.yml

  Log Message:
  -----------
  Make DEBUGGING the default on CI


  Commit: 3d4aa9a4442cd6adceb2062c88146ae0bfd1934a
      https://github.com/Perl/perl5/commit/3d4aa9a4442cd6adceb2062c88146ae0bfd1934a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M t/run/locale.t

  Log Message:
  -----------
  t/run/locale.t: Move init stmt

This makes it easier to add a line to turn on debugging temporarily


  Commit: 7fc7e61355155c55bdc906af9ae783deaa22bf65
      https://github.com/Perl/perl5/commit/7fc7e61355155c55bdc906af9ae783deaa22bf65
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M t/run/locale.t

  Log Message:
  -----------
  XXX run/locale.t temp debug


  Commit: c07fca10e881926209ffb4f0b9f03ad62b531aab
      https://github.com/Perl/perl5/commit/c07fca10e881926209ffb4f0b9f03ad62b531aab
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M t/porting/customized.dat
    M vutil.c

  Log Message:
  -----------
  vutil.c: Clean up white space

Change tabs to blanks; Fix indentation; chomp trailing white space

Remove some blank lines that don't contribute to readability


  Commit: 49f9e00bc34140933f60a084f7ec1d0fb1a8b5c3
      https://github.com/Perl/perl5/commit/49f9e00bc34140933f60a084f7ec1d0fb1a8b5c3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M t/porting/customized.dat
    M vutil.c

  Log Message:
  -----------
  vutil.c: Simplify locale handling

I read the code over and realized that there was a much simpler way to
do things.


  Commit: 3210814028130276f1a1950f459d3df47b8143bc
      https://github.com/Perl/perl5/commit/3210814028130276f1a1950f459d3df47b8143bc
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Change a branch into an assert

This code should no longer be necessary; but verify


  Commit: 8a1ad1bd5288003cb12d4fd4ae236f14476e17d4
      https://github.com/Perl/perl5/commit/8a1ad1bd5288003cb12d4fd4ae236f14476e17d4
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  Add pTHX to locale_thread_init()


  Commit: 398a6fa7237a1405a5efce96c162d0644677bde1
      https://github.com/Perl/perl5/commit/398a6fa7237a1405a5efce96c162d0644677bde1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  l


  Commit: de763c6b849d26747c26864df878eac85e4370cc
      https://github.com/Perl/perl5/commit/de763c6b849d26747c26864df878eac85e4370cc
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embedvar.h
    M intrpvar.h
    M locale.c
    M sv.c

  Log Message:
  -----------
  PLcurlocales


  Commit: 238807129c8e7fce84d5a94dd088973edc933ed3
      https://github.com/Perl/perl5/commit/238807129c8e7fce84d5a94dd088973edc933ed3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embedvar.h
    M intrpvar.h
    M locale.c
    M sv.c

  Log Message:
  -----------
  Revert "PLcurlocales"

This reverts commit cd1fd76eac05b9ca866bb6f1dae6151767aa3d76.


  Commit: d1c7dc8c662267ba450bcb5398c8194006a10840
      https://github.com/Perl/perl5/commit/d1c7dc8c662267ba450bcb5398c8194006a10840
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M lib/locale.t

  Log Message:
  -----------
  lib/locale.t FILE debug


  Commit: 54483ef097fe97d854ea6ed2418dd41ba0033983
      https://github.com/Perl/perl5/commit/54483ef097fe97d854ea6ed2418dd41ba0033983
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: windows DEBUG stmts


  Commit: a818d3172453719d307e5f4bff778c07da3b4894
      https://github.com/Perl/perl5/commit/a818d3172453719d307e5f4bff778c07da3b4894
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M proto.h

  Log Message:
  -----------
  f save_to_buffer ignore return


  Commit: 9d3d0bc73b365fb90a0dad5df2aa98d79e0acea9
      https://github.com/Perl/perl5/commit/9d3d0bc73b365fb90a0dad5df2aa98d79e0acea9
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  handy.h: Add layer for char classification/case change

This layer currently expands to just the layer below it, but that will
be changed in a future commit.


  Commit: e8bb0644a81426c19cd2c68832af8be2a3e8ded9
      https://github.com/Perl/perl5/commit/e8bb0644a81426c19cd2c68832af8be2a3e8ded9
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M dist/ExtUtils-ParseXS/lib/perlxs.pod
    M t/porting/known_pod_issues.dat

  Log Message:
  -----------
  perlxs


  Commit: 27b4d945e9a653ab59e807cbdc1796eb84d2c0a1
      https://github.com/Perl/perl5/commit/27b4d945e9a653ab59e807cbdc1796eb84d2c0a1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  XXX Temp dont use querylocale()


  Commit: 88e1e1814b842504c53ffd35dee2f739c06ab8de
      https://github.com/Perl/perl5/commit/88e1e1814b842504c53ffd35dee2f739c06ab8de
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  l


  Commit: d4f5afc216b2b3ff598af31850a5c3a74b9b496a
      https://github.com/Perl/perl5/commit/d4f5afc216b2b3ff598af31850a5c3a74b9b496a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M intrpvar.h

  Log Message:
  -----------
  intrpvar.h: Swap position of two defns; add comment


  Commit: 2510fdad70af30a45832ead4f99e3863a772bc1d
      https://github.com/Perl/perl5/commit/2510fdad70af30a45832ead4f99e3863a772bc1d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M intrpvar.h
    M locale.c

  Log Message:
  -----------
  locale.c: Add 'Lazy' location changing

When comparing two strings for order under 'use locale', one can call
strcoll() which creates hidden modified versions of the strings based on
the locale's collation ordering, does the comparison, and then throws
away the modified versions.

Or one can call strxfrm() to create a non-hidden modified version of
each string, and then do a straight comparison.  The advantage here is
that you are in control of when to discard the modified version, and the
(expensive) transformation is done just once, no matter how many times a
comparison is done.

Perl assumes that a string will be compared multiple times, so the first
time it happens under 'use locale', strxfrm() is called, and the
modified string is attached via magic to the SV.  The modified string is
discarded if the string changes, or is recomputed if the locale has
changed since the computation was done.

The transformation generally occupies some multiple of size of the
original string.  Memory must be allocated to hold it.  For any given
locale, the amount is predictable for all strings, roughly via a linear
equation "mx+b", where x is the size of the original string.  By
computing 'm' and 'b' once, Perl can allocate enough memory to hold the
transformation, but not too much.  (m and b are adjusted up as necessary
as more strings get transformed.)  This minimizes mallocs.

But the calculation of m and b is somewhat expensive, and only necessary
if the program actually does a string compare under 'use locale'.

This commit defers the calculation until needed.  It does the bare
minimum of changes accomplish this.  The next commit will rearrange
things.


  Commit: d1c9a0e19221228efce8626335b6a2e0e8fad3d3
      https://github.com/Perl/perl5/commit/d1c9a0e19221228efce8626335b6a2e0e8fad3d3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Move code, white-space, comment only

This moves the function created in the previous commit to a more logical
place in the file; just before its only call.  It also removes nested
blocks that are no longer necessary.


  Commit: 1f8703425a0260c04b9f56be5b8f48940659c886
      https://github.com/Perl/perl5/commit/1f8703425a0260c04b9f56be5b8f48940659c886
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c
    M util.c

  Log Message:
  -----------
  XXX Configure strftime() is C89

We can assume it exists


  Commit: fafec9bd63275d6fbd01712a87363427656069c5
      https://github.com/Perl/perl5/commit/fafec9bd63275d6fbd01712a87363427656069c5
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M perl.h
    M sv.c

  Log Message:
  -----------
  perl.h: Change macro name to be C conformant

Leading underscores in names are undefined


  Commit: c4c385216f1f88fcfc17ad5a4790cd5e1fecb7c0
      https://github.com/Perl/perl5/commit/c4c385216f1f88fcfc17ad5a4790cd5e1fecb7c0
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M patchlevel.h

  Log Message:
  -----------
  patchlevel.h: White-space only: properly indent


  Commit: 4c4841d59f305a73590c15f2fd39c7aeef585775
      https://github.com/Perl/perl5/commit/4c4841d59f305a73590c15f2fd39c7aeef585775
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M sv.c

  Log Message:
  -----------
  sv.c: Comments white-space only


  Commit: b7f3174a332246c12fd80a87941c986377d8ff49
      https://github.com/Perl/perl5/commit/b7f3174a332246c12fd80a87941c986377d8ff49
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M makedef.pl

  Log Message:
  -----------
  makedef.pl: Rmv obsolete symbol

This routine is now a static function, so needn't be in makedef.pl


  Commit: e74dfe04d95c4feaeb8bda4f69f1c7358c5caa6b
      https://github.com/Perl/perl5/commit/e74dfe04d95c4feaeb8bda4f69f1c7358c5caa6b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Refactor internal debugging function

setlocale_debug_string() variants  now use Perl_form, a function I
didn't know existed when I originally wrote this code.


  Commit: 62dbdbc9701971ebc4b8d9f6faebf9322fea222e
      https://github.com/Perl/perl5/commit/62dbdbc9701971ebc4b8d9f6faebf9322fea222e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Add a fcn to display LC_ALL

This is trivial on a platform that has LC_ALL, but requires extra work
on platforms that don't.


  Commit: 84e2d4e3f3356a18bcec328fd32caed7d7e04562
      https://github.com/Perl/perl5/commit/84e2d4e3f3356a18bcec328fd32caed7d7e04562
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Add debugging check

If we run across the REPLACEMENT CHARACTER, its likely a mismatch
between LC_CTYPE and another category.  This panics on debugging builds.


  Commit: d5d95391bd115f9197c00b41dfa8f3334bdfd7a8
      https://github.com/Perl/perl5/commit/d5d95391bd115f9197c00b41dfa8f3334bdfd7a8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Initialize variables to avoid runtime check

Initializing them means we no longer have to tess that they are non-NULL
each time they are accessed.


  Commit: 3619e7b7b64551b17d2a1498fa1b00e4d591cfff
      https://github.com/Perl/perl5/commit/3619e7b7b64551b17d2a1498fa1b00e4d591cfff
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Initialize PL_underlying_numeric_obj

This probably doesn't matter, but it's better form to initialize it to a
sane value.


  Commit: a4d4c9ebf2f9dd212b384dbed7c9a8cb1b9821dd
      https://github.com/Perl/perl5/commit/a4d4c9ebf2f9dd212b384dbed7c9a8cb1b9821dd
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M t/loc_tools.pl

  Log Message:
  -----------
  t/loc_tools.pl: Print better failing test numbers

This test module is 'required' from other perl test files.  If it
encounters an error, it doesn't know how to report it.  What it does is
call fail() if available, and a home-grown one otherwise.  Prior to this
commit the home-grown version just made all tests number 0.  This commit
changes that to make them sequentially numbered from a very high
starting one, so as not to interfere with the outer calls.


  Commit: 20c9a3fe802b61d33172424c69a3a778202c98b4
      https://github.com/Perl/perl5/commit/20c9a3fe802b61d33172424c69a3a778202c98b4
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M cygwin/cygwin.c

  Log Message:
  -----------
  cygwin


  Commit: 5bf69c666d73a4dcbe6ba67bb59b84b4402240e3
      https://github.com/Perl/perl5/commit/5bf69c666d73a4dcbe6ba67bb59b84b4402240e3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M patchlevel.h

  Log Message:
  -----------
  Kludge to get cygwin to compile


  Commit: 61ebfcc6b47b817c8bb12293ace838b643a86261
      https://github.com/Perl/perl5/commit/61ebfcc6b47b817c8bb12293ace838b643a86261
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M cygwin/cygwin.c

  Log Message:
  -----------
  cygwin use fcns


  Commit: a5fa4eb810a0ce256fd10305f20e2978530ee75e
      https://github.com/Perl/perl5/commit/a5fa4eb810a0ce256fd10305f20e2978530ee75e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M cygwin/cygwin.c

  Log Message:
  -----------
  Revert "cygwin use fcns"

This reverts commit 24fbf2ccd8777c4af31eb9f8038d4cff7073b0c4.


  Commit: 55bf52073b7108e0d1b32df97c142e3ff4a4f469
      https://github.com/Perl/perl5/commit/55bf52073b7108e0d1b32df97c142e3ff4a4f469
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M t/loc_tools.pl

  Log Message:
  -----------
  t/loc_tools.pl: Refactor _trylocale()

This function is used to see if a locale actually works on the current
platform.  I was not fully aware of the glitches if a category is in one
locale, and LC_CTYPE is in another.  This makes sure they are both the
same; and this results in some simplification.


  Commit: bfd5a88500c43aaeda86d2ab9e29ea0edd16950f
      https://github.com/Perl/perl5/commit/bfd5a88500c43aaeda86d2ab9e29ea0edd16950f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M t/loc_tools.pl

  Log Message:
  -----------
  t/loc_tools.pl: Fail earlier

Move the code that returns failure into the loop, so won't keep
iterating if failure is going to happen anyway.


  Commit: 58fd30a5bb977d9a771d49868b3373c506156933
      https://github.com/Perl/perl5/commit/58fd30a5bb977d9a771d49868b3373c506156933
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M t/loc_tools.pl

  Log Message:
  -----------
  t/loc_tools.pl: Add checks

This verifies that we can restore a locale that we were previously in,
and makes sure that we don't stay in a locale that doesn't work well.
Doing so has led to crashes.


  Commit: ef851359c254027e3728635709ab60e39ede1ce7
      https://github.com/Perl/perl5/commit/ef851359c254027e3728635709ab60e39ede1ce7
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M t/loc_tools.pl

  Log Message:
  -----------
  t/loc_tools.pl: Don't allow commas in locale names

This was a problem in some buggy Windows versions.  This addition keeps
locales with this bug from being tested.


  Commit: f0b7b18755458297f2425ef207b0637b9cf674fe
      https://github.com/Perl/perl5/commit/f0b7b18755458297f2425ef207b0637b9cf674fe
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M t/loc_tools.pl

  Log Message:
  -----------
  t/loc_tools.pl: Check for unsupported locales

This commit causes us not to view unsupported locales as legitimate for
testing.  Core dumps occurred on some platforms without this.

It looks for a diagnostic that the next commit in this series will
generate.


  Commit: 240c62371db4d077639fb338172fba9548c4411f
      https://github.com/Perl/perl5/commit/240c62371db4d077639fb338172fba9548c4411f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M locale.c
    M pod/perldiag.pod

  Log Message:
  -----------
  XXXdelta Add locale unsupported test

Perl only suppots multi-byte locales that are UTF-8.  It turns out that
the others are worse than I thought, and if someone switches to one, the
program can crash.

This commit generates a default-on diagnostic when switching into such a
locale, and doesn't take the steps to add its data to the LC_CTYPE
database.

The check has been done in various releases for some time, but this
elevates its severity and tries to avoid actually using its data.

The previous commit caused the test suite to view such a locale as
unacceptable.


  Commit: ab1b0cf59587e8166051a75e249fff3ff357c2f9
      https://github.com/Perl/perl5/commit/ab1b0cf59587e8166051a75e249fff3ff357c2f9
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M t/loc_tools.pl

  Log Message:
  -----------
  t/loc_tools.pl: White-space only


  Commit: 765af5a256cc5b89569ce8b542b873ca299fd341
      https://github.com/Perl/perl5/commit/765af5a256cc5b89569ce8b542b873ca299fd341
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M t/loc_tools.pl

  Log Message:
  -----------
  XXX t/loc_tools.pl: Temp debug


  Commit: b76ad731efcd803f278b279c0954de81c4a2d38a
      https://github.com/Perl/perl5/commit/b76ad731efcd803f278b279c0954de81c4a2d38a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M t/loc_tools.pl

  Log Message:
  -----------
  t/loc_tools.pl: Swap lines

It doesn't matter much, but some warnings might be output by doing the
'use locale' before turning off warnings.


  Commit: 880f2dc55ee092ccfc09b1a4f6bb3082bf9dad54
      https://github.com/Perl/perl5/commit/880f2dc55ee092ccfc09b1a4f6bb3082bf9dad54
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M lib/locale_threads.t

  Log Message:
  -----------
  XXX locale_threads


  Commit: a2ec71dbdeb8ddebbf527abe004bbf7aff2ff1c5
      https://github.com/Perl/perl5/commit/a2ec71dbdeb8ddebbf527abe004bbf7aff2ff1c5
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M lib/locale_threads.t

  Log Message:
  -----------
  XXX locale_threads debugging


  Commit: 136c4356af8877a3fa1269b966a9808dd613711c
      https://github.com/Perl/perl5/commit/136c4356af8877a3fa1269b966a9808dd613711c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M intrpvar.h

  Log Message:
  -----------
  intrpvar.h: White space only


  Commit: e7a41d4b1628fca147566ec3d14414171dcff687
      https://github.com/Perl/perl5/commit/e7a41d4b1628fca147566ec3d14414171dcff687
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M intrpvar.h

  Log Message:
  -----------
  intrpvar.h: Move some defns into appropriate #ifdefs


  Commit: d439d3cac1ce2f18952ce6808a2cbfc47d6d454a
      https://github.com/Perl/perl5/commit/d439d3cac1ce2f18952ce6808a2cbfc47d6d454a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M embedvar.h
    M intrpvar.h
    M locale.c
    M proto.h
    M sv.c

  Log Message:
  -----------
  XXX finish msg,thread_init Revamp sync_locale, switch_to_global_locale

f


  Commit: 12c147a6d235297632743a009e723d0d77bfda51
      https://github.com/Perl/perl5/commit/12c147a6d235297632743a009e723d0d77bfda51
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M sv.c

  Log Message:
  -----------
  sv.c: Rmv duplicate clones

These variables are already cloned when creating a thread


  Commit: 3978abc2450bb942a6ab71505af3d0a8a36d7391
      https://github.com/Perl/perl5/commit/3978abc2450bb942a6ab71505af3d0a8a36d7391
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M sv.c

  Log Message:
  -----------
  sv.c: Rmv redundant clause

If threaded locales are being used, basic locales are too.  No need to
check both


  Commit: f094fdd3651b5c4d12991c412dd1b87183ea356e
      https://github.com/Perl/perl5/commit/f094fdd3651b5c4d12991c412dd1b87183ea356e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M handy.h
    M lib/locale.t

  Log Message:
  -----------
  Fix isspace() handling on AIX

This box incorrectly thinks the NBSP is a graphic on many locales.
Overriding that makes these locales behave like proper POSIX ones.


  Commit: 0c20e6dd75190f7d843781c1693c8ca5888cbcc4
      https://github.com/Perl/perl5/commit/0c20e6dd75190f7d843781c1693c8ca5888cbcc4
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M sv.c

  Log Message:
  -----------
  sv.c: White-space only

Replace leading tabs with spaces


  Commit: 7b18f96f7ef7d42d557e7c3f34d81ae73d592d35
      https://github.com/Perl/perl5/commit/7b18f96f7ef7d42d557e7c3f34d81ae73d592d35
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M hints/cygwin.sh

  Log Message:
  -----------
  XXX check if really necessary after everything: Don't use POSIX 2008 locale

This has been found to be buggy leading to dying inside the newlocale()
in S_emulate_setlocale_i()


  Commit: 67cc6c678409e5d603e4623a9e5d1f7c1ef14f43
      https://github.com/Perl/perl5/commit/67cc6c678409e5d603e4623a9e5d1f7c1ef14f43
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M lib/locale.t

  Log Message:
  -----------
  lib/locale.t: Use I18N::Langinfo, not POSIX::localeconv()

Now that Langinfo is ported to every box, it requires less work than
localeconv(), and offers more choices.  This commit changes to use it,
and for more info when debugging, gets some additional info from it.


  Commit: 9f30324aad695553cfc53259fb6a724c604efddc
      https://github.com/Perl/perl5/commit/9f30324aad695553cfc53259fb6a724c604efddc
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  XXX cygwin debugging small macro buf


  Commit: 6e321637bc14ed16e09a7b80e7713b67a460cfbe
      https://github.com/Perl/perl5/commit/6e321637bc14ed16e09a7b80e7713b67a460cfbe
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  perl.h: Avoid unnecessary calls to set_numeric_standard()

Prior to this commit, set_numeric_standard() was called unconditionally,
and it could decide if it should do anything or not.  But the variable
that indicates this is available to the caller, so by testing it, it can
avoid the call, which is most likely the case.


  Commit: 81688227dfcfead1a4d4ca8fa1deff1e0acdbbae
      https://github.com/Perl/perl5/commit/81688227dfcfead1a4d4ca8fa1deff1e0acdbbae
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  XXX perl.h: Debugging trace across all files


  Commit: b3100d682b3a08e2c97a68613600ea33038d1b03
      https://github.com/Perl/perl5/commit/b3100d682b3a08e2c97a68613600ea33038d1b03
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  XXX Use internal querylocale on Linux

XXX Need to bisect to see where this goes bad
XXX Is effectively a no-op due to other debugging code


  Commit: 47c2bbfc6162ef944343ca8e2ee227d603504da8
      https://github.com/Perl/perl5/commit/47c2bbfc6162ef944343ca8e2ee227d603504da8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M cpan/Time-Piece/Piece.xs
    M dist/ExtUtils-ParseXS/lib/perlxs.pod
    M handy.h
    M iperlsys.h
    M locale.c
    M perl.h
    M pod/perllocale.pod
    M regen/reentr.pl
    M regexec.c
    M util.c

  Log Message:
  -----------
  Notes


  Commit: 72faf73a86dbd83fbf5f758a1e4d7d94ece20dda
      https://github.com/Perl/perl5/commit/72faf73a86dbd83fbf5f758a1e4d7d94ece20dda
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-04-30 (Fri, 30 Apr 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M ext/I18N-Langinfo/t/Langinfo.t
    M ext/POSIX/POSIX.xs
    M intrpvar.h
    M lib/locale.t
    M lib/locale_threads.t
    M locale.c
    M perl.h
    M proto.h
    M regexec.c
    M t/loc_tools.pl
    M t/run/locale.t

  Log Message:
  -----------
  47


Compare: https://github.com/Perl/perl5/compare/d82c10180282...72faf73a86db



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