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[Perl/perl5] 47dc18: perlapi: Rmv repeated word

From:
Karl Williamson via perl5-changes
Date:
May 2, 2021 13:54
Subject:
[Perl/perl5] 47dc18: perlapi: Rmv repeated word
Message ID:
Perl/perl5/push/refs/heads/smoke-me/khw-locale/7c7d1e-43216d@github.com
  Branch: refs/heads/smoke-me/khw-locale
  Home:   https://github.com/Perl/perl5
  Commit: 47dc1888728f7602b1cbca1e87ed655b929553e1
      https://github.com/Perl/perl5/commit/47dc1888728f7602b1cbca1e87ed655b929553e1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M sv.c

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


  Commit: e21da4361379aaadf6d497436a86de2d07504cb6
      https://github.com/Perl/perl5/commit/e21da4361379aaadf6d497436a86de2d07504cb6
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 8b174be7482a951f7af6aeb9b82abd63ec9cd453
      https://github.com/Perl/perl5/commit/8b174be7482a951f7af6aeb9b82abd63ec9cd453
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 469e628fad65703784c18e58d9e461e3d3975b0f
      https://github.com/Perl/perl5/commit/469e628fad65703784c18e58d9e461e3d3975b0f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 221792c7f9d421e13e19c714581cdee3518827d1
      https://github.com/Perl/perl5/commit/221792c7f9d421e13e19c714581cdee3518827d1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 6cd216fc1b8e115de1738105b9bb4d183776578d
      https://github.com/Perl/perl5/commit/6cd216fc1b8e115de1738105b9bb4d183776578d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: edcc514a0375bccb05b60a3286a174898681353b
      https://github.com/Perl/perl5/commit/edcc514a0375bccb05b60a3286a174898681353b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 43fbbe18f5aba74d431e61ea42b3566787e68ff8
      https://github.com/Perl/perl5/commit/43fbbe18f5aba74d431e61ea42b3566787e68ff8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 9293536584a2ceb05eae835cfdfc34e3922a0bcb
      https://github.com/Perl/perl5/commit/9293536584a2ceb05eae835cfdfc34e3922a0bcb
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M handy.h

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


  Commit: 214d7ce2943eb000aeacad2e5f34ca033fe3f94a
      https://github.com/Perl/perl5/commit/214d7ce2943eb000aeacad2e5f34ca033fe3f94a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M handy.h

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


  Commit: 1ebedf95063ba763141fb1130f343724e1c94546
      https://github.com/Perl/perl5/commit/1ebedf95063ba763141fb1130f343724e1c94546
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 6fe83506e77ef1db4239ee31fe53ee91b9ecce52
      https://github.com/Perl/perl5/commit/6fe83506e77ef1db4239ee31fe53ee91b9ecce52
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: ec66b23e2f34dead083b9ef72d2f032a569d5aa1
      https://github.com/Perl/perl5/commit/ec66b23e2f34dead083b9ef72d2f032a569d5aa1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 7c557e8fba71559d32723fd2a9f3635afe65c8c8
      https://github.com/Perl/perl5/commit/7c557e8fba71559d32723fd2a9f3635afe65c8c8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 3d30812e07c145ef3019a999ef0ffcad07d14138
      https://github.com/Perl/perl5/commit/3d30812e07c145ef3019a999ef0ffcad07d14138
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 689058b65c79defdcfff18fab3297866f9be9d0b
      https://github.com/Perl/perl5/commit/689058b65c79defdcfff18fab3297866f9be9d0b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: f4fc9835bd4329de8aeb7214ace349c81798c0c8
      https://github.com/Perl/perl5/commit/f4fc9835bd4329de8aeb7214ace349c81798c0c8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 3f013ad23762723b10e87036067d7c8c08cf1dd4
      https://github.com/Perl/perl5/commit/3f013ad23762723b10e87036067d7c8c08cf1dd4
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 1624b0ce4c5965d6729b6e9433b9f6f8094d25bb
      https://github.com/Perl/perl5/commit/1624b0ce4c5965d6729b6e9433b9f6f8094d25bb
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 3fcb93e93a9d78bcf3508b2d482c5c953c70c402
      https://github.com/Perl/perl5/commit/3fcb93e93a9d78bcf3508b2d482c5c953c70c402
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 2f931745323f5d72f609b6dd82dd41c8692886bf
      https://github.com/Perl/perl5/commit/2f931745323f5d72f609b6dd82dd41c8692886bf
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 4bd4af88514812354dbef42ad32b519e2f9ab26a
      https://github.com/Perl/perl5/commit/4bd4af88514812354dbef42ad32b519e2f9ab26a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: e02f6183ec62a383f6bd57ba91bf79032ef2754a
      https://github.com/Perl/perl5/commit/e02f6183ec62a383f6bd57ba91bf79032ef2754a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M handy.h

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


  Commit: 369c086440d1f7eef825ba03387cc55a6167e81a
      https://github.com/Perl/perl5/commit/369c086440d1f7eef825ba03387cc55a6167e81a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M handy.h

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

As a convenience to other code.


  Commit: c5b867a431988b1b4f5059cde43ff455699d640f
      https://github.com/Perl/perl5/commit/c5b867a431988b1b4f5059cde43ff455699d640f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 84776ac8a6bab99049255ce4023a3fd53013e2a9
      https://github.com/Perl/perl5/commit/84776ac8a6bab99049255ce4023a3fd53013e2a9
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 2130bba9a5c56f206895fcbec997bfd05a407c8b
      https://github.com/Perl/perl5/commit/2130bba9a5c56f206895fcbec997bfd05a407c8b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M locale.c

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


  Commit: 3ab004cee7b92c9d3b32b58417d56b540b584460
      https://github.com/Perl/perl5/commit/3ab004cee7b92c9d3b32b58417d56b540b584460
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 01fe8b0f4496112289ea6f1ce5440b3a5827aa91
      https://github.com/Perl/perl5/commit/01fe8b0f4496112289ea6f1ce5440b3a5827aa91
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: a2563f2aa43c15fc1e1fcba3611108b1a0d7e95f
      https://github.com/Perl/perl5/commit/a2563f2aa43c15fc1e1fcba3611108b1a0d7e95f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: bd07af8b3041bffdf9bf699357003c36d17ed8b5
      https://github.com/Perl/perl5/commit/bd07af8b3041bffdf9bf699357003c36d17ed8b5
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 423222b9c9b264a385a0ae05e8734eb3cf83b492
      https://github.com/Perl/perl5/commit/423222b9c9b264a385a0ae05e8734eb3cf83b492
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 5fcfa742f6f2ab80255c1ed26f7ff7d166c27e5a
      https://github.com/Perl/perl5/commit/5fcfa742f6f2ab80255c1ed26f7ff7d166c27e5a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 6e565033f1de90639b45c587044f3e368c43b923
      https://github.com/Perl/perl5/commit/6e565033f1de90639b45c587044f3e368c43b923
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 73ca5f0f1f35e3c9d1238dee38aa0b202c76dcec
      https://github.com/Perl/perl5/commit/73ca5f0f1f35e3c9d1238dee38aa0b202c76dcec
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 2854b2ce2cd1140c9c5a21063bd9249ceda2425c
      https://github.com/Perl/perl5/commit/2854b2ce2cd1140c9c5a21063bd9249ceda2425c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 2ada213b086eae622dc29a8b3bca3491f5e69528
      https://github.com/Perl/perl5/commit/2ada213b086eae622dc29a8b3bca3491f5e69528
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 20e1297c7eab887f843c57a35b24d223d7b7d69d
      https://github.com/Perl/perl5/commit/20e1297c7eab887f843c57a35b24d223d7b7d69d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 7b61b119e5fc2b042560c871e3cdb9661b560064
      https://github.com/Perl/perl5/commit/7b61b119e5fc2b042560c871e3cdb9661b560064
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: db684b1b83553b32cda9fd56f911942216221f6b
      https://github.com/Perl/perl5/commit/db684b1b83553b32cda9fd56f911942216221f6b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 258d1262704e3cf7a4108de56076b113ed1d38da
      https://github.com/Perl/perl5/commit/258d1262704e3cf7a4108de56076b113ed1d38da
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 642ce39a4b5de86792c6bea057ac27bb4e51986e
      https://github.com/Perl/perl5/commit/642ce39a4b5de86792c6bea057ac27bb4e51986e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: f06172ade7d87727b4a13767e069ca705123faf3
      https://github.com/Perl/perl5/commit/f06172ade7d87727b4a13767e069ca705123faf3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: b906f62890edfdd9b108982eeb0a100d8a741402
      https://github.com/Perl/perl5/commit/b906f62890edfdd9b108982eeb0a100d8a741402
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 23e58451d2451322953d3b3b59a61df2b7a55e52
      https://github.com/Perl/perl5/commit/23e58451d2451322953d3b3b59a61df2b7a55e52
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: d5e6a75a7ac1e894f2ac21f2cd217c66154aa435
      https://github.com/Perl/perl5/commit/d5e6a75a7ac1e894f2ac21f2cd217c66154aa435
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 2aaeff07026bd9d6b5c587c06017dbc2828ad363
      https://github.com/Perl/perl5/commit/2aaeff07026bd9d6b5c587c06017dbc2828ad363
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 3134a67a1ded5dd110dd09177e850cb472b28c04
      https://github.com/Perl/perl5/commit/3134a67a1ded5dd110dd09177e850cb472b28c04
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 37cadc0672253488358db0503d04a9807ea5543c
      https://github.com/Perl/perl5/commit/37cadc0672253488358db0503d04a9807ea5543c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 77d442abb0452850c27357abb19c01503c07af6e
      https://github.com/Perl/perl5/commit/77d442abb0452850c27357abb19c01503c07af6e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 3f442bb1ca9309328bdae7d1e3108c31ba1af357
      https://github.com/Perl/perl5/commit/3f442bb1ca9309328bdae7d1e3108c31ba1af357
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 8119e00f727e8a81a996db2ecb1ee884df0a8e52
      https://github.com/Perl/perl5/commit/8119e00f727e8a81a996db2ecb1ee884df0a8e52
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: b478ee3d400905368f3001d9f514b4b543a8834a
      https://github.com/Perl/perl5/commit/b478ee3d400905368f3001d9f514b4b543a8834a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 22186b7ad2cfb9b009a9d2e4bea05198d9b428d7
      https://github.com/Perl/perl5/commit/22186b7ad2cfb9b009a9d2e4bea05198d9b428d7
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 87075256ca3f1a824d71e110541385d2eca70fa4
      https://github.com/Perl/perl5/commit/87075256ca3f1a824d71e110541385d2eca70fa4
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 29a335376defefcf231f204b6b2189133c0f87eb
      https://github.com/Perl/perl5/commit/29a335376defefcf231f204b6b2189133c0f87eb
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 95d9ebcb76b45e1931aef529b3b9c00609c9de9c
      https://github.com/Perl/perl5/commit/95d9ebcb76b45e1931aef529b3b9c00609c9de9c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 61455c18eb005300b3b4afe64e46ccb13652324a
      https://github.com/Perl/perl5/commit/61455c18eb005300b3b4afe64e46ccb13652324a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M locale.c

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

A future commit will want this


  Commit: 226a729ad20ade29b4702ab85539bf89613108ae
      https://github.com/Perl/perl5/commit/226a729ad20ade29b4702ab85539bf89613108ae
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: e6175aba1deb27f9a461dd1a40d9c395118a809a
      https://github.com/Perl/perl5/commit/e6175aba1deb27f9a461dd1a40d9c395118a809a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M locale.c

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


  Commit: 22c5d272799cd6107381fe5667cfc238686f54d2
      https://github.com/Perl/perl5/commit/22c5d272799cd6107381fe5667cfc238686f54d2
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: ee2c1673dafbbaaf446de3df6de7abf29702e93f
      https://github.com/Perl/perl5/commit/ee2c1673dafbbaaf446de3df6de7abf29702e93f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 6079a9c400929a7856f86e1c3d35885f2c349733
      https://github.com/Perl/perl5/commit/6079a9c400929a7856f86e1c3d35885f2c349733
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 3c51e36fcfa29d8d08567f54c3d229f1216f4ee9
      https://github.com/Perl/perl5/commit/3c51e36fcfa29d8d08567f54c3d229f1216f4ee9
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: be9e44ed0c586ea4cbc0fa31968965ae7c12a180
      https://github.com/Perl/perl5/commit/be9e44ed0c586ea4cbc0fa31968965ae7c12a180
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 527b6b80ce6001213d4b731e7835fb6f8f555102
      https://github.com/Perl/perl5/commit/527b6b80ce6001213d4b731e7835fb6f8f555102
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 14a9b581dbcbe7d118135a01a58e0eb6d3f00473
      https://github.com/Perl/perl5/commit/14a9b581dbcbe7d118135a01a58e0eb6d3f00473
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: fb46d273bf5fcc0bf371b00cd0e293b438e3b411
      https://github.com/Perl/perl5/commit/fb46d273bf5fcc0bf371b00cd0e293b438e3b411
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 549f785f386b7f4825c8ee3679cdd7c43aa07aeb
      https://github.com/Perl/perl5/commit/549f785f386b7f4825c8ee3679cdd7c43aa07aeb
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 193820c9bf1bb9db45500a499eb2caf921adf3ec
      https://github.com/Perl/perl5/commit/193820c9bf1bb9db45500a499eb2caf921adf3ec
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 95fdaad0c893c1f8bb4cc9959b7b8fd2cf026916
      https://github.com/Perl/perl5/commit/95fdaad0c893c1f8bb4cc9959b7b8fd2cf026916
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 1a2a61f7c9b38d4ccb35704c360a980a61e34253
      https://github.com/Perl/perl5/commit/1a2a61f7c9b38d4ccb35704c360a980a61e34253
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: f352071c026591ef9fe97be7b77a89aa7125be9c
      https://github.com/Perl/perl5/commit/f352071c026591ef9fe97be7b77a89aa7125be9c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: c3b67bef4fdc4635ab3ba8b8d156086e8795b733
      https://github.com/Perl/perl5/commit/c3b67bef4fdc4635ab3ba8b8d156086e8795b733
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 089507754a40f99d21b3d2186d28dd79e93a8ae7
      https://github.com/Perl/perl5/commit/089507754a40f99d21b3d2186d28dd79e93a8ae7
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M ext/POSIX/POSIX.xs

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

Properly indent some nested preprocessor directives


  Commit: ed5035a014847e6110e377c599a8b94d646ef8d5
      https://github.com/Perl/perl5/commit/ed5035a014847e6110e377c599a8b94d646ef8d5
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: ffc282714670d4ef11112d134a0875e8d53ba3e8
      https://github.com/Perl/perl5/commit/ffc282714670d4ef11112d134a0875e8d53ba3e8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 568512013bbae1e08d2295d193f48121219d8493
      https://github.com/Perl/perl5/commit/568512013bbae1e08d2295d193f48121219d8493
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 055a08cb278fac286843bbd64100f25e2d091e8c
      https://github.com/Perl/perl5/commit/055a08cb278fac286843bbd64100f25e2d091e8c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: a6cd5e551fb87ec87a0585282cd9e5fa98bd7060
      https://github.com/Perl/perl5/commit/a6cd5e551fb87ec87a0585282cd9e5fa98bd7060
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 81e5a961649aaf364be42ec61a266c280e96749b
      https://github.com/Perl/perl5/commit/81e5a961649aaf364be42ec61a266c280e96749b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 03170d7e6413f985c9a10519326f7e99560cd698
      https://github.com/Perl/perl5/commit/03170d7e6413f985c9a10519326f7e99560cd698
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 83c515bd425688d386a20ae96901ed046280fb0e
      https://github.com/Perl/perl5/commit/83c515bd425688d386a20ae96901ed046280fb0e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 49ea7d05ea2b9dc53a4469bfa8910bf7e77d7d18
      https://github.com/Perl/perl5/commit/49ea7d05ea2b9dc53a4469bfa8910bf7e77d7d18
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M locale.c

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

This allows some preprocessor conditionals to be removed


  Commit: 32efca9162af93faa80bbae6fcce8d649db0ff68
      https://github.com/Perl/perl5/commit/32efca9162af93faa80bbae6fcce8d649db0ff68
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M locale.c

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

strEQ and && already return booleans


  Commit: 46dac163fef85c94e5f01e82c34b0c5f18c20c9c
      https://github.com/Perl/perl5/commit/46dac163fef85c94e5f01e82c34b0c5f18c20c9c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 08289b93e855d20f65333c577bbc420eacd26aab
      https://github.com/Perl/perl5/commit/08289b93e855d20f65333c577bbc420eacd26aab
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: bfbbbe9a8a35cdfa6d7f0faa6eaaf3ef2968492b
      https://github.com/Perl/perl5/commit/bfbbbe9a8a35cdfa6d7f0faa6eaaf3ef2968492b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 41a1e7cbda117abcce0c4ea2272ab40972829cc1
      https://github.com/Perl/perl5/commit/41a1e7cbda117abcce0c4ea2272ab40972829cc1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: faed333ca2bd2a0abdb7157c35f8cba63b42ca49
      https://github.com/Perl/perl5/commit/faed333ca2bd2a0abdb7157c35f8cba63b42ca49
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: ba54b09fc4ec4b7ceb3563abe504483aaab544e5
      https://github.com/Perl/perl5/commit/ba54b09fc4ec4b7ceb3563abe504483aaab544e5
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 7270d38c3f517faf7e7c219308fd9b4448725e33
      https://github.com/Perl/perl5/commit/7270d38c3f517faf7e7c219308fd9b4448725e33
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: ac7f00c6852674d24e6acafd65f81fcdd68a4131
      https://github.com/Perl/perl5/commit/ac7f00c6852674d24e6acafd65f81fcdd68a4131
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 6e7786210f9cd2213b414665d858bd549efd4a99
      https://github.com/Perl/perl5/commit/6e7786210f9cd2213b414665d858bd549efd4a99
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 8075148373c6d48e24005710b8e9c3cc1dddf7ff
      https://github.com/Perl/perl5/commit/8075148373c6d48e24005710b8e9c3cc1dddf7ff
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: f096d8d9c50a40a43e39ca414798a02e43916c68
      https://github.com/Perl/perl5/commit/f096d8d9c50a40a43e39ca414798a02e43916c68
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 8158a289694255d7eedba3c27fc04901cb66c477
      https://github.com/Perl/perl5/commit/8158a289694255d7eedba3c27fc04901cb66c477
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 1a0353eececf664959b9117d0a69f82d28e413c7
      https://github.com/Perl/perl5/commit/1a0353eececf664959b9117d0a69f82d28e413c7
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 5a71249ff82177322d3c1bcad389596da81d974e
      https://github.com/Perl/perl5/commit/5a71249ff82177322d3c1bcad389596da81d974e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 8f523e4ec8ee871a143767b18e300408fd9af495
      https://github.com/Perl/perl5/commit/8f523e4ec8ee871a143767b18e300408fd9af495
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 32f54c6c812418bd4ff24e14d77f182ebb8cfa9e
      https://github.com/Perl/perl5/commit/32f54c6c812418bd4ff24e14d77f182ebb8cfa9e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: d639819d0334719af679f77a36cdc52e117c1e6d
      https://github.com/Perl/perl5/commit/d639819d0334719af679f77a36cdc52e117c1e6d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 2469c046222e22694cdc04cffc3f44b2244c3e2e
      https://github.com/Perl/perl5/commit/2469c046222e22694cdc04cffc3f44b2244c3e2e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: d7391fd1f6b72367964e6b180d345c2c8370cd41
      https://github.com/Perl/perl5/commit/d7391fd1f6b72367964e6b180d345c2c8370cd41
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: abfb1806c4d961f91181e21088dac99a9fe1627c
      https://github.com/Perl/perl5/commit/abfb1806c4d961f91181e21088dac99a9fe1627c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 4ff9576df73954cfcb87f54b62593d622d754a80
      https://github.com/Perl/perl5/commit/4ff9576df73954cfcb87f54b62593d622d754a80
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 0fac640437cf02ed18023a0ba320e8f045b23156
      https://github.com/Perl/perl5/commit/0fac640437cf02ed18023a0ba320e8f045b23156
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 46b35dc03a5c7d950fe6ccb82b673df2bd295913
      https://github.com/Perl/perl5/commit/46b35dc03a5c7d950fe6ccb82b673df2bd295913
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M locale.c

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


  Commit: 8f39d99a275ff128420aa1ca5acba93df1e47b08
      https://github.com/Perl/perl5/commit/8f39d99a275ff128420aa1ca5acba93df1e47b08
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 460cbe3eb6fd3ecb69a3dff85062cffe213c7da3
      https://github.com/Perl/perl5/commit/460cbe3eb6fd3ecb69a3dff85062cffe213c7da3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: b528882f9b67519e07da3dbea7143d6b45b58f3f
      https://github.com/Perl/perl5/commit/b528882f9b67519e07da3dbea7143d6b45b58f3f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: aaf35922d95fdd91ebe10ea6db7acf68e0796951
      https://github.com/Perl/perl5/commit/aaf35922d95fdd91ebe10ea6db7acf68e0796951
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M mg.c

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

Indent newly formed block from the previous commit.


  Commit: e16f811bd3ba5cdc0ca10e8579989fef5ca5eb3e
      https://github.com/Perl/perl5/commit/e16f811bd3ba5cdc0ca10e8579989fef5ca5eb3e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: c743e54e191b233ee676d9870ca9ed35cbf07170
      https://github.com/Perl/perl5/commit/c743e54e191b233ee676d9870ca9ed35cbf07170
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 3445aa7e958edb0d13acb1d6725da2bba72291c2
      https://github.com/Perl/perl5/commit/3445aa7e958edb0d13acb1d6725da2bba72291c2
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: c19b89e29dda676a6f8f997bc1e3ae85bc3bbc7a
      https://github.com/Perl/perl5/commit/c19b89e29dda676a6f8f997bc1e3ae85bc3bbc7a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 8dc624cef59c6c87ab73a9a0cc07f3206ca85455
      https://github.com/Perl/perl5/commit/8dc624cef59c6c87ab73a9a0cc07f3206ca85455
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 19583ed530121f1cc84d70c7c81720bb04d7130d
      https://github.com/Perl/perl5/commit/19583ed530121f1cc84d70c7c81720bb04d7130d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: fee241929e1297c6b68c6d3852943135d587b7d8
      https://github.com/Perl/perl5/commit/fee241929e1297c6b68c6d3852943135d587b7d8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 4a034b5ce529a03ad3b8ba3648d9de6ab81d88c5
      https://github.com/Perl/perl5/commit/4a034b5ce529a03ad3b8ba3648d9de6ab81d88c5
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 2fae5d3d8eec685ca3513f367b5478cb0f702da2
      https://github.com/Perl/perl5/commit/2fae5d3d8eec685ca3513f367b5478cb0f702da2
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: ab5378850eaf8081eae6bbb148da4f2e490a3e59
      https://github.com/Perl/perl5/commit/ab5378850eaf8081eae6bbb148da4f2e490a3e59
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 4408dc696908255ce64d9acddfdea63a414830f5
      https://github.com/Perl/perl5/commit/4408dc696908255ce64d9acddfdea63a414830f5
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M locale.c

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


  Commit: 5bc013de7894a2159ef773f835daf7ee2670419f
      https://github.com/Perl/perl5/commit/5bc013de7894a2159ef773f835daf7ee2670419f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 830be7d99ae1e512986ee75ffc12f3f61d3d2c09
      https://github.com/Perl/perl5/commit/830be7d99ae1e512986ee75ffc12f3f61d3d2c09
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: ef76941246c5eaf8d93b39b57a280804aa0abe4f
      https://github.com/Perl/perl5/commit/ef76941246c5eaf8d93b39b57a280804aa0abe4f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: aef09505d33d02ee12584c74c44aa744f00178a9
      https://github.com/Perl/perl5/commit/aef09505d33d02ee12584c74c44aa744f00178a9
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 9cf017af5800e3eb6053d91f5797a20b8ec960c2
      https://github.com/Perl/perl5/commit/9cf017af5800e3eb6053d91f5797a20b8ec960c2
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 2731333cb74cf6b91b1315493165f1ba286ec118
      https://github.com/Perl/perl5/commit/2731333cb74cf6b91b1315493165f1ba286ec118
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M locale.c

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

This avoids setting this until needed.


  Commit: a98258720c804f4b089ebc7cedd0d9cf945ce7f7
      https://github.com/Perl/perl5/commit/a98258720c804f4b089ebc7cedd0d9cf945ce7f7
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: f7e51fb1b37ee0a503fdee5520f50341428c63d2
      https://github.com/Perl/perl5/commit/f7e51fb1b37ee0a503fdee5520f50341428c63d2
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: f046556bd3916638d6cc5b34b5a74282bab450e6
      https://github.com/Perl/perl5/commit/f046556bd3916638d6cc5b34b5a74282bab450e6
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 5406024f90c684fca4cdfb280404f7201bf90609
      https://github.com/Perl/perl5/commit/5406024f90c684fca4cdfb280404f7201bf90609
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: cd5a0b8aea85865f8ccde4a2352303401aeb4a86
      https://github.com/Perl/perl5/commit/cd5a0b8aea85865f8ccde4a2352303401aeb4a86
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 9aa804fecad1ea9ddf8305f5ffac72aca252b04c
      https://github.com/Perl/perl5/commit/9aa804fecad1ea9ddf8305f5ffac72aca252b04c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 61fa8dc42ff18e2911a19e4a8082b25c91446cdf
      https://github.com/Perl/perl5/commit/61fa8dc42ff18e2911a19e4a8082b25c91446cdf
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M locale.c

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


  Commit: 608446d1e2c776f94b37aa14996c3c7137bb6533
      https://github.com/Perl/perl5/commit/608446d1e2c776f94b37aa14996c3c7137bb6533
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 9ca20c18d9ec7d80bc634747798616770a56b69a
      https://github.com/Perl/perl5/commit/9ca20c18d9ec7d80bc634747798616770a56b69a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 4d72373951a3adbe40511b0c191f32cfb2da6fc1
      https://github.com/Perl/perl5/commit/4d72373951a3adbe40511b0c191f32cfb2da6fc1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M locale.c

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


  Commit: 87af2c581113d9b4dabe381961c1a7e5f0c248a8
      https://github.com/Perl/perl5/commit/87af2c581113d9b4dabe381961c1a7e5f0c248a8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 98fb6ca262b2f01c33da40e289adc86d550c743e
      https://github.com/Perl/perl5/commit/98fb6ca262b2f01c33da40e289adc86d550c743e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 30b25bf365b9f155e91c07e4b842b70fc176494e
      https://github.com/Perl/perl5/commit/30b25bf365b9f155e91c07e4b842b70fc176494e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 1a36aa7435673354ce98eb25826edd366871bb6b
      https://github.com/Perl/perl5/commit/1a36aa7435673354ce98eb25826edd366871bb6b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 2f39eb5d0dcf9ad5fd8f047d2fbb474d9a50c6bf
      https://github.com/Perl/perl5/commit/2f39eb5d0dcf9ad5fd8f047d2fbb474d9a50c6bf
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: ddcf2ee355cc427ff88b134ccb6a69d0a2f4432b
      https://github.com/Perl/perl5/commit/ddcf2ee355cc427ff88b134ccb6a69d0a2f4432b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M lib/locale.t

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


  Commit: 1671c59bfa45fb07f828659e58916aedefa8d147
      https://github.com/Perl/perl5/commit/1671c59bfa45fb07f828659e58916aedefa8d147
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: e61293c64831f86c16d0a4705087c1576f7a8f6b
      https://github.com/Perl/perl5/commit/e61293c64831f86c16d0a4705087c1576f7a8f6b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 28016667bfa37bbd035496d94118bec3a55df220
      https://github.com/Perl/perl5/commit/28016667bfa37bbd035496d94118bec3a55df220
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 5a7c18ddd422efe5d274005a2f73c06ec46566ff
      https://github.com/Perl/perl5/commit/5a7c18ddd422efe5d274005a2f73c06ec46566ff
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 53dafb22eecbf468b001df3ad3d28e894c6f4ed0
      https://github.com/Perl/perl5/commit/53dafb22eecbf468b001df3ad3d28e894c6f4ed0
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: bc4e96648c8bf3846a0da8167eda06dd9c95a8b8
      https://github.com/Perl/perl5/commit/bc4e96648c8bf3846a0da8167eda06dd9c95a8b8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M locale.c

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

Hex is the more familiar form


  Commit: 6b9f3c2e5365e12729e48a6027a4f33a291904f5
      https://github.com/Perl/perl5/commit/6b9f3c2e5365e12729e48a6027a4f33a291904f5
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 10d15f158670db853582e4e5baf35399dba50e8c
      https://github.com/Perl/perl5/commit/10d15f158670db853582e4e5baf35399dba50e8c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 8180a877091f64349a205c0105095d510717e55c
      https://github.com/Perl/perl5/commit/8180a877091f64349a205c0105095d510717e55c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 467ec942016fb65263aad43cf501688eabeed608
      https://github.com/Perl/perl5/commit/467ec942016fb65263aad43cf501688eabeed608
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 85a872759dfc7ba62d5682ab50d1089df6144b2d
      https://github.com/Perl/perl5/commit/85a872759dfc7ba62d5682ab50d1089df6144b2d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 8fa7e765f3f9d1280a143c45ce843260ee45d1c5
      https://github.com/Perl/perl5/commit/8fa7e765f3f9d1280a143c45ce843260ee45d1c5
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: e8937580dc5f491a9f1da01c1d52fd30ad566d4a
      https://github.com/Perl/perl5/commit/e8937580dc5f491a9f1da01c1d52fd30ad566d4a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: e814976856ebaeaa0fe80d3607ef30fb09baf259
      https://github.com/Perl/perl5/commit/e814976856ebaeaa0fe80d3607ef30fb09baf259
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: a83daa17b28b4274f0d949814a695419526b7701
      https://github.com/Perl/perl5/commit/a83daa17b28b4274f0d949814a695419526b7701
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 8f143075375aa6b010834e59ff9093c3c84e8d84
      https://github.com/Perl/perl5/commit/8f143075375aa6b010834e59ff9093c3c84e8d84
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 2600f2df4785226dc3734b5cf7f8c8a227f2b585
      https://github.com/Perl/perl5/commit/2600f2df4785226dc3734b5cf7f8c8a227f2b585
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M perl.h

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

This simplifies slightly, and will allow further simplification


  Commit: a384a2252a546b91b5ce038c5cdf3d0fef6f6ee5
      https://github.com/Perl/perl5/commit/a384a2252a546b91b5ce038c5cdf3d0fef6f6ee5
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M perl.h

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

To enable future simplifications


  Commit: 6ce9e4f4dc3363560e085cf47dfb1fc5e099e038
      https://github.com/Perl/perl5/commit/6ce9e4f4dc3363560e085cf47dfb1fc5e099e038
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 70a599984a185f45fc1e1fb03229b18a917336ed
      https://github.com/Perl/perl5/commit/70a599984a185f45fc1e1fb03229b18a917336ed
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: bf0f8f8cc6b868a2db1ffedb9fa48ca0d31dcf77
      https://github.com/Perl/perl5/commit/bf0f8f8cc6b868a2db1ffedb9fa48ca0d31dcf77
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: ab58db3043e267467aa17f850f3b135cf59050f7
      https://github.com/Perl/perl5/commit/ab58db3043e267467aa17f850f3b135cf59050f7
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M pp.c

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


  Commit: ea08775650d0335670e30f255db285f970366cf6
      https://github.com/Perl/perl5/commit/ea08775650d0335670e30f255db285f970366cf6
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: c8e848a9aa5aeaa09c946179b75dd6c60cfe7bf7
      https://github.com/Perl/perl5/commit/c8e848a9aa5aeaa09c946179b75dd6c60cfe7bf7
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 1a4f3ae08656633c059a674c51c947fb40d99fbf
      https://github.com/Perl/perl5/commit/1a4f3ae08656633c059a674c51c947fb40d99fbf
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M locale.c

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


  Commit: 086acb63185d83e83d2e2a6856144f76c73837da
      https://github.com/Perl/perl5/commit/086acb63185d83e83d2e2a6856144f76c73837da
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M locale.c

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


  Commit: 1d42dd95bc12fd52b8e0b62988bd6d99150dde97
      https://github.com/Perl/perl5/commit/1d42dd95bc12fd52b8e0b62988bd6d99150dde97
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: b542145b496bcae7bd6d2bb7b9274c234bd54819
      https://github.com/Perl/perl5/commit/b542145b496bcae7bd6d2bb7b9274c234bd54819
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: fe7427bbca6f76957c9a11c14c18220c2c2e4783
      https://github.com/Perl/perl5/commit/fe7427bbca6f76957c9a11c14c18220c2c2e4783
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 5e1d736e885fd82780b26cc33514101668009a62
      https://github.com/Perl/perl5/commit/5e1d736e885fd82780b26cc33514101668009a62
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M perl.h

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

So they are closer to related statements


  Commit: 581fa4df4b7d1841e1e6d46a01566696e7dd166a
      https://github.com/Perl/perl5/commit/581fa4df4b7d1841e1e6d46a01566696e7dd166a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 55d9028065d62b22a4004fc93cdc3c6083dd1d70
      https://github.com/Perl/perl5/commit/55d9028065d62b22a4004fc93cdc3c6083dd1d70
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 4be33e342bd237fd17c680d95816eb39c33df47d
      https://github.com/Perl/perl5/commit/4be33e342bd237fd17c680d95816eb39c33df47d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M pp_sys.c

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


  Commit: 34c9223df923df2e47cdaefc39ed42b799f281ef
      https://github.com/Perl/perl5/commit/34c9223df923df2e47cdaefc39ed42b799f281ef
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M win32/win32.c

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

These could have races.


  Commit: f2c32eb2a38a9a093cd680576f0f0eabb2b1fc56
      https://github.com/Perl/perl5/commit/f2c32eb2a38a9a093cd680576f0f0eabb2b1fc56
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M ext/POSIX/POSIX.xs

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


  Commit: 4f6bd418426b63432e143fbda3ec4342ef3c87f3
      https://github.com/Perl/perl5/commit/4f6bd418426b63432e143fbda3ec4342ef3c87f3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M util.c

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

per the Posix standard


  Commit: 5f014580189f44785072eccef66e91d6206ebe59
      https://github.com/Perl/perl5/commit/5f014580189f44785072eccef66e91d6206ebe59
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M util.c

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


  Commit: 9ef6d972faeaec536fea156f66103675e1699444
      https://github.com/Perl/perl5/commit/9ef6d972faeaec536fea156f66103675e1699444
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 14fa442fa7b101d22b2cf0e297fa23e998e0aed8
      https://github.com/Perl/perl5/commit/14fa442fa7b101d22b2cf0e297fa23e998e0aed8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 974c5155f37060a3726e8e1a02af747c37da2033
      https://github.com/Perl/perl5/commit/974c5155f37060a3726e8e1a02af747c37da2033
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 23684dbc5edb97f5a15587438f0e8b97de0822f0
      https://github.com/Perl/perl5/commit/23684dbc5edb97f5a15587438f0e8b97de0822f0
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: bf32c039159a4892eaf8dd37e1a76fb8bb6fecd0
      https://github.com/Perl/perl5/commit/bf32c039159a4892eaf8dd37e1a76fb8bb6fecd0
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 4feea2136c990b351d7576b79d36fa6352c3a27c
      https://github.com/Perl/perl5/commit/4feea2136c990b351d7576b79d36fa6352c3a27c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: b55ff7e48675c47357a1797be4762fcd4af13eb2
      https://github.com/Perl/perl5/commit/b55ff7e48675c47357a1797be4762fcd4af13eb2
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M pod/perlhacktips.pod

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


  Commit: abb255940ed29da34ba18af9398d6a6749d87611
      https://github.com/Perl/perl5/commit/abb255940ed29da34ba18af9398d6a6749d87611
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: a97f2d9c860a95f06912ebc01c64561e64c0dd32
      https://github.com/Perl/perl5/commit/a97f2d9c860a95f06912ebc01c64561e64c0dd32
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M hints/freebsd.sh

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


  Commit: 4f67813e991676e6ec63936ba15bb2ec0243118a
      https://github.com/Perl/perl5/commit/4f67813e991676e6ec63936ba15bb2ec0243118a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M thread.h

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


  Commit: 2e5002093c4536a610a225758d9a110a86d90997
      https://github.com/Perl/perl5/commit/2e5002093c4536a610a225758d9a110a86d90997
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M thread.h

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


  Commit: ff4ccf71e82ac2330f11baf732b31cc5c44407f1
      https://github.com/Perl/perl5/commit/ff4ccf71e82ac2330f11baf732b31cc5c44407f1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M perl.h

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


  Commit: db960272c2097c1c288dd59ce27c840d595d68ac
      https://github.com/Perl/perl5/commit/db960272c2097c1c288dd59ce27c840d595d68ac
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

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

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


  Commit: 6a3c27ed3cdb9db9d3568b46a27ebcf1130229a9
      https://github.com/Perl/perl5/commit/6a3c27ed3cdb9db9d3568b46a27ebcf1130229a9
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M locale.c

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


  Commit: 140ca12302217d0fea0c0981518af08c7cdefeeb
      https://github.com/Perl/perl5/commit/140ca12302217d0fea0c0981518af08c7cdefeeb
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

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

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


  Commit: 24dd332534e0a150e1e1a4f502b4fa21f1e89e10
      https://github.com/Perl/perl5/commit/24dd332534e0a150e1e1a4f502b4fa21f1e89e10
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: ae21e722fb5569995641b9fed4a1c864a5e23fd6
      https://github.com/Perl/perl5/commit/ae21e722fb5569995641b9fed4a1c864a5e23fd6
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M t/run/locale.t

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


  Commit: 36740b01a4f108e8e3f0d2090b5cccd8d9e9a689
      https://github.com/Perl/perl5/commit/36740b01a4f108e8e3f0d2090b5cccd8d9e9a689
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: d5864b5acc516a969ccac63d9eb175b1e36e7381
      https://github.com/Perl/perl5/commit/d5864b5acc516a969ccac63d9eb175b1e36e7381
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: e68434d3eb495cad0ea8378f8515c64745eb23ca
      https://github.com/Perl/perl5/commit/e68434d3eb495cad0ea8378f8515c64745eb23ca
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: aff8449e803b4d893e8cf8f54963047f754dd05c
      https://github.com/Perl/perl5/commit/aff8449e803b4d893e8cf8f54963047f754dd05c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

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

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


  Commit: ca3384e5810da1b4b7627c533d5991d12c2ca010
      https://github.com/Perl/perl5/commit/ca3384e5810da1b4b7627c533d5991d12c2ca010
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M locale.c

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


  Commit: 773e4d141efd0f716ad100a0b9840738391333e9
      https://github.com/Perl/perl5/commit/773e4d141efd0f716ad100a0b9840738391333e9
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

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

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


  Commit: 22d25af1f810ec9eaed66b4fe6b9fa17bbc0ae2d
      https://github.com/Perl/perl5/commit/22d25af1f810ec9eaed66b4fe6b9fa17bbc0ae2d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

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

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

This reverts commit cd1fd76eac05b9ca866bb6f1dae6151767aa3d76.


  Commit: 89ac9ba66ffe0272b3f9198940e6cf0af580efb1
      https://github.com/Perl/perl5/commit/89ac9ba66ffe0272b3f9198940e6cf0af580efb1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M lib/locale.t

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


  Commit: 19ee361224ba2305bfac76e5a09b49530d23f7af
      https://github.com/Perl/perl5/commit/19ee361224ba2305bfac76e5a09b49530d23f7af
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M locale.c

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


  Commit: 527ecb898cbccda30ede9027a6ab4a512b61ea8d
      https://github.com/Perl/perl5/commit/527ecb898cbccda30ede9027a6ab4a512b61ea8d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M embed.fnc
    M proto.h

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


  Commit: 86445cf5f5aa8ff016d4e9ef8027a62e76ec13a4
      https://github.com/Perl/perl5/commit/86445cf5f5aa8ff016d4e9ef8027a62e76ec13a4
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: c41c9417cc4dde9289561e2b989ce268bcc426ca
      https://github.com/Perl/perl5/commit/c41c9417cc4dde9289561e2b989ce268bcc426ca
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

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

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


  Commit: 7fe28c9ab2fd8a41194e40b31a74e2312a783d55
      https://github.com/Perl/perl5/commit/7fe28c9ab2fd8a41194e40b31a74e2312a783d55
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M perl.h

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


  Commit: d33a10eb660387e9b57504f6fe0e83feb9641244
      https://github.com/Perl/perl5/commit/d33a10eb660387e9b57504f6fe0e83feb9641244
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M locale.c

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


  Commit: cc55881a142769c53b7955cce118a1c0aa71fbf8
      https://github.com/Perl/perl5/commit/cc55881a142769c53b7955cce118a1c0aa71fbf8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M intrpvar.h

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


  Commit: 1ca8764c760393789c5288243630f46844f9255a
      https://github.com/Perl/perl5/commit/1ca8764c760393789c5288243630f46844f9255a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 7b3ce21f4a6672f8e92b57edecc498edeee8138b
      https://github.com/Perl/perl5/commit/7b3ce21f4a6672f8e92b57edecc498edeee8138b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: a24ed88b381470ebf480fc8f52133fd9bd4b7f1f
      https://github.com/Perl/perl5/commit/a24ed88b381470ebf480fc8f52133fd9bd4b7f1f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M locale.c
    M util.c

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

We can assume it exists


  Commit: 7f8ac24f13f746b8eeddbac30be9422c3d44b3c7
      https://github.com/Perl/perl5/commit/7f8ac24f13f746b8eeddbac30be9422c3d44b3c7
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: ea47711e9bfca833fc185092fdf0346c9f0dd11d
      https://github.com/Perl/perl5/commit/ea47711e9bfca833fc185092fdf0346c9f0dd11d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M patchlevel.h

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


  Commit: 6ffa6c5ba051efa99a1a7a40d8c6b83382fce0d3
      https://github.com/Perl/perl5/commit/6ffa6c5ba051efa99a1a7a40d8c6b83382fce0d3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M sv.c

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


  Commit: 194e6e135394f805d46cda966e98ebd35e1eddc3
      https://github.com/Perl/perl5/commit/194e6e135394f805d46cda966e98ebd35e1eddc3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 6847d19b670add23e16bf01b8c8b75f4c02f3251
      https://github.com/Perl/perl5/commit/6847d19b670add23e16bf01b8c8b75f4c02f3251
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 49318d460bc05c00b897f77914af65baea5df909
      https://github.com/Perl/perl5/commit/49318d460bc05c00b897f77914af65baea5df909
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 0c15327b648d33f2b6c7aeb21fa9bb9dfbe7e393
      https://github.com/Perl/perl5/commit/0c15327b648d33f2b6c7aeb21fa9bb9dfbe7e393
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: aafdcefcdb3ef5e7eb9a6c0f6c297b3cca50e6d5
      https://github.com/Perl/perl5/commit/aafdcefcdb3ef5e7eb9a6c0f6c297b3cca50e6d5
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 7a05e868b6213ab723a752ece9e062adbc48871b
      https://github.com/Perl/perl5/commit/7a05e868b6213ab723a752ece9e062adbc48871b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 3d0c35e8b7d115a44816eb47d10e17f787a41d8e
      https://github.com/Perl/perl5/commit/3d0c35e8b7d115a44816eb47d10e17f787a41d8e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 9fc954aa0e7708b1e785c226421098ea80324c10
      https://github.com/Perl/perl5/commit/9fc954aa0e7708b1e785c226421098ea80324c10
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M cygwin/cygwin.c

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


  Commit: 83753319e62a1328cd9fc4db8aa5a4953628cbfa
      https://github.com/Perl/perl5/commit/83753319e62a1328cd9fc4db8aa5a4953628cbfa
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M patchlevel.h

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


  Commit: 5f20c7014e0cc1636b157b5a969c266d30577f41
      https://github.com/Perl/perl5/commit/5f20c7014e0cc1636b157b5a969c266d30577f41
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M cygwin/cygwin.c

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


  Commit: bcb028ab8745446edc228d42b108aa7aec2b7f66
      https://github.com/Perl/perl5/commit/bcb028ab8745446edc228d42b108aa7aec2b7f66
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M cygwin/cygwin.c

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

This reverts commit 24fbf2ccd8777c4af31eb9f8038d4cff7073b0c4.


  Commit: 8c7080d005840c61443cfcb66bd7b12b5911a731
      https://github.com/Perl/perl5/commit/8c7080d005840c61443cfcb66bd7b12b5911a731
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 9811ee7b6a48f98efbe1139ffe99113945127200
      https://github.com/Perl/perl5/commit/9811ee7b6a48f98efbe1139ffe99113945127200
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 66512f73563f5b914f9b40264500c390164c3630
      https://github.com/Perl/perl5/commit/66512f73563f5b914f9b40264500c390164c3630
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 7a5c6ee43edff68c415052195f5abb9bf211ea1f
      https://github.com/Perl/perl5/commit/7a5c6ee43edff68c415052195f5abb9bf211ea1f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 904066ba3a977739a35683b1d0de851777ab5da5
      https://github.com/Perl/perl5/commit/904066ba3a977739a35683b1d0de851777ab5da5
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 38cfb84e3efcd65c50884c9af2fe71cd4ab3dac0
      https://github.com/Perl/perl5/commit/38cfb84e3efcd65c50884c9af2fe71cd4ab3dac0
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: d1f5a5460f490f3bf751215fc05852f167c79f82
      https://github.com/Perl/perl5/commit/d1f5a5460f490f3bf751215fc05852f167c79f82
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M t/loc_tools.pl

  Log Message:
  -----------
  t/loc_tools.pl: White-space only


  Commit: 8e842dbbdb1cbcf6a6a41e573e7cccb26b7938d6
      https://github.com/Perl/perl5/commit/8e842dbbdb1cbcf6a6a41e573e7cccb26b7938d6
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M t/loc_tools.pl

  Log Message:
  -----------
  XXX t/loc_tools.pl: Temp debug


  Commit: 04608e5cf470f52854d6b3a265121c7119cc60ea
      https://github.com/Perl/perl5/commit/04608e5cf470f52854d6b3a265121c7119cc60ea
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: f182a3595bde1c502d18bd5f235151264f402d4f
      https://github.com/Perl/perl5/commit/f182a3595bde1c502d18bd5f235151264f402d4f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M lib/locale_threads.t

  Log Message:
  -----------
  XXX locale_threads


  Commit: 83ca8c4f6e75c9b8989c226f776966676c7a1e56
      https://github.com/Perl/perl5/commit/83ca8c4f6e75c9b8989c226f776966676c7a1e56
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M lib/locale_threads.t

  Log Message:
  -----------
  XXX locale_threads debugging


  Commit: ce2a5a6964312ea95770a405c5855a934a0013a0
      https://github.com/Perl/perl5/commit/ce2a5a6964312ea95770a405c5855a934a0013a0
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M intrpvar.h

  Log Message:
  -----------
  intrpvar.h: White space only


  Commit: 42a3faa62840010fe8303d142a8caa13831fd66b
      https://github.com/Perl/perl5/commit/42a3faa62840010fe8303d142a8caa13831fd66b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M intrpvar.h

  Log Message:
  -----------
  intrpvar.h: Move some defns into appropriate #ifdefs


  Commit: f737f32e33146fa742b7c1afcd2c24d958d8d515
      https://github.com/Perl/perl5/commit/f737f32e33146fa742b7c1afcd2c24d958d8d515
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 3e04026244608202d62e6d78e1c0d7e3e7a60700
      https://github.com/Perl/perl5/commit/3e04026244608202d62e6d78e1c0d7e3e7a60700
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M sv.c

  Log Message:
  -----------
  sv.c: Rmv duplicate clones

These variables are already cloned when creating a thread


  Commit: b3f38aad7101bf3e5a2ada6801d5c5e462f799b4
      https://github.com/Perl/perl5/commit/b3f38aad7101bf3e5a2ada6801d5c5e462f799b4
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: a98aa6de0bf245514808dd066523832caf172136
      https://github.com/Perl/perl5/commit/a98aa6de0bf245514808dd066523832caf172136
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 5d02c32fde439323a389f8a14abb6f7a25aa3514
      https://github.com/Perl/perl5/commit/5d02c32fde439323a389f8a14abb6f7a25aa3514
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M sv.c

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

Replace leading tabs with spaces


  Commit: d0170e3aa7c1e284eb86a02c54750f975b2a9778
      https://github.com/Perl/perl5/commit/d0170e3aa7c1e284eb86a02c54750f975b2a9778
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 03aef1f5f75d8145ecd75aa9f7e86f98a908be0f
      https://github.com/Perl/perl5/commit/03aef1f5f75d8145ecd75aa9f7e86f98a908be0f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 98cc5ef9862e2e41700cb25ab731fa9bd115f31a
      https://github.com/Perl/perl5/commit/98cc5ef9862e2e41700cb25ab731fa9bd115f31a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  XXX cygwin debugging small macro buf


  Commit: add664327207f407bdddace4ba0cd96c141336ea
      https://github.com/Perl/perl5/commit/add664327207f407bdddace4ba0cd96c141336ea
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 82b9a9a3199038930c14521e5394894da17b5fb7
      https://github.com/Perl/perl5/commit/82b9a9a3199038930c14521e5394894da17b5fb7
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 2021)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  XXX perl.h: Debugging trace across all files


  Commit: 5333949d3343ebc8637df2e65194c592d1b228f3
      https://github.com/Perl/perl5/commit/5333949d3343ebc8637df2e65194c592d1b228f3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 4468b1ce979b104feb6adc08952cde273b6cb0c1
      https://github.com/Perl/perl5/commit/4468b1ce979b104feb6adc08952cde273b6cb0c1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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: 43216d696fc0772a69e6e505c07fcdcdef230636
      https://github.com/Perl/perl5/commit/43216d696fc0772a69e6e505c07fcdcdef230636
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-02 (Sun, 02 May 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:
  -----------
  51


Compare: https://github.com/Perl/perl5/compare/7c7d1e9d02b3...43216d696fc0



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