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[Perl/perl5] 55f536: Add ability to easily add info to DEBUG output

From:
Karl Williamson via perl5-changes
Date:
March 15, 2021 03:13
Subject:
[Perl/perl5] 55f536: Add ability to easily add info to DEBUG output
Message ID:
Perl/perl5/push/refs/heads/smoke-me/khw-locale/9a7361-1b091d@github.com
  Branch: refs/heads/smoke-me/khw-locale
  Home:   https://github.com/Perl/perl5
  Commit: 55f536ee7e0846e53bea14337a41fb848bd9aba5
      https://github.com/Perl/perl5/commit/55f536ee7e0846e53bea14337a41fb848bd9aba5
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  Add ability to easily add info to DEBUG output

This commit adds two macros that a user can define and recompile Perl to
get every active DEBUG statement to do some thing beyond what it would
normally do.

This allows someone to recompile Perl when they need to delve deeper
into fixing a bug without otherwise increasing memory use or slowing
execution.


  Commit: aa7224d7368f3dd1a8f390af362285d73850fb06
      https://github.com/Perl/perl5/commit/aa7224d7368f3dd1a8f390af362285d73850fb06
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M dosish.h
    M unixish.h

  Log Message:
  -----------
  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: 401d680cbf88772d3b989d165711be4b18fdd434
      https://github.com/Perl/perl5/commit/401d680cbf88772d3b989d165711be4b18fdd434
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M t/loc_tools.pl

  Log Message:
  -----------
  loc_tools.pl: Fix valid_categories calculation

This function was returning the locale categories known to the platform;
it should exclude those that perl has been compiled to ignore.


  Commit: 18546995be3aa29306f47aac823eba09fa662716
      https://github.com/Perl/perl5/commit/18546995be3aa29306f47aac823eba09fa662716
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M mg.c

  Log Message:
  -----------
  XXX better message: mg.c: Silence compiler warning


  Commit: cdd32f4857e3b30a3252e3072876aebaa64e1ec0
      https://github.com/Perl/perl5/commit/cdd32f4857e3b30a3252e3072876aebaa64e1ec0
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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 we 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 reproduce 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: 66ada799016b5877b91c75146f82efd8ac8dbc9c
      https://github.com/Perl/perl5/commit/66ada799016b5877b91c75146f82efd8ac8dbc9c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M lib/locale_threads.t

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


  Commit: b513147f887bf897d7a9fea7c8594bf9c1b381e1
      https://github.com/Perl/perl5/commit/b513147f887bf897d7a9fea7c8594bf9c1b381e1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: ec07b14c8d0c50f4d238c3f5d45bf26a0508b764
      https://github.com/Perl/perl5/commit/ec07b14c8d0c50f4d238c3f5d45bf26a0508b764
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: c3aba0cf59c28e579a17e8df482d92c0e6003704
      https://github.com/Perl/perl5/commit/c3aba0cf59c28e579a17e8df482d92c0e6003704
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

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

  Log Message:
  -----------
  Change 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: 320404f779621ca0ed7fc3f013e0ec9c3a1f0ee2
      https://github.com/Perl/perl5/commit/320404f779621ca0ed7fc3f013e0ec9c3a1f0ee2
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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 isWORDCHAR_LC definition for non-Windows to match that
platform, adding an UNLIKELY().


  Commit: ee4fde762121704bc6c34b271c93353be53d3e80
      https://github.com/Perl/perl5/commit/ee4fde762121704bc6c34b271c93353be53d3e80
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M handy.h

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


  Commit: 7dc529adec39277d01d6672647faf45db20d38ec
      https://github.com/Perl/perl5/commit/7dc529adec39277d01d6672647faf45db20d38ec
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M handy.h

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

Replace isIDFIRST_LC  with a slightly faster implementation, in line
with what isWORDCHAR already does


  Commit: dbe8ef764aa58be75c68e97b86e574a11563542e
      https://github.com/Perl/perl5/commit/dbe8ef764aa58be75c68e97b86e574a11563542e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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 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: d20f6068413a7c9a8aff773d97388ddd85b8c562
      https://github.com/Perl/perl5/commit/d20f6068413a7c9a8aff773d97388ddd85b8c562
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  handy.h: Rmv unneeded generality

The possible first character of an ID is always an alpha in the range
0-255, so there is no harm changing from the former to the latter.  And
future changes would otherwise have needed an extra parameter in a bunch
of macros.


  Commit: 1e28403ff6b115c459ba9e90362ea1c9828c4faf
      https://github.com/Perl/perl5/commit/1e28403ff6b115c459ba9e90362ea1c9828c4faf
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  handy.h: Don't special case isASCII_LC

This was an attempt to save instructions, but future commits will need
the generality


  Commit: 0a4bd655a64776e475f4c536d28258b08208cabb
      https://github.com/Perl/perl5/commit/0a4bd655a64776e475f4c536d28258b08208cabb
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 034b39f198bb077298b9a31460122086e663de37
      https://github.com/Perl/perl5/commit/034b39f198bb077298b9a31460122086e663de37
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M globvar.sym
    M handy.h
    M inline.h
    M perl.h
    M proto.h
    M regexec.c

  Log Message:
  -----------
  regexec.c: Use function call table to streamline code

This replaces a switch() statement with a function pointer table.  But
the main reason I'm doing this is for future functionality.


  Commit: c84137ced63c931402f15cf46726f4fba922e33e
      https://github.com/Perl/perl5/commit/c84137ced63c931402f15cf46726f4fba922e33e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M locale.c

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


  Commit: b63afc3ae6ea7e70f1e926468766c0ecb3baab5d
      https://github.com/Perl/perl5/commit/b63afc3ae6ea7e70f1e926468766c0ecb3baab5d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 0e42cd824d1c3af78214cad17590f06c023a4fd2
      https://github.com/Perl/perl5/commit/0e42cd824d1c3af78214cad17590f06c023a4fd2
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 2c620861082288ef5a37fd0f8f8d252738dfc211
      https://github.com/Perl/perl5/commit/2c620861082288ef5a37fd0f8f8d252738dfc211
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: b6fbc8e9257a1b25bc29e7230cf2006c904bee9a
      https://github.com/Perl/perl5/commit/b6fbc8e9257a1b25bc29e7230cf2006c904bee9a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: e63d61ad58ec2f73d0185b7b3fff3cecf0050212
      https://github.com/Perl/perl5/commit/e63d61ad58ec2f73d0185b7b3fff3cecf0050212
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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  macro is the
base level.


  Commit: 6f04e2a502875d1c0f30f65008283754e6616e93
      https://github.com/Perl/perl5/commit/6f04e2a502875d1c0f30f65008283754e6616e93
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 19b10c468f5f78cee2c68dbfbe0df4aa8eb96a52
      https://github.com/Perl/perl5/commit/19b10c468f5f78cee2c68dbfbe0df4aa8eb96a52
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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 edgest of the locale-handling code; once found the index is used in
future bits of the current operation.


  Commit: ac7db7ae6aeaa7c5c7b43240233c7b4f1efa9233
      https://github.com/Perl/perl5/commit/ac7db7ae6aeaa7c5c7b43240233c7b4f1efa9233
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 9fa112c61be2ec49995df5a93d5935005b9b1f6f
      https://github.com/Perl/perl5/commit/9fa112c61be2ec49995df5a93d5935005b9b1f6f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: f6425e7eba06e6a8c9be43bd74c2def27ba3bfca
      https://github.com/Perl/perl5/commit/f6425e7eba06e6a8c9be43bd74c2def27ba3bfca
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Use nocontext; avoid rarely needed dTHX

This is a rare case; no point in doing a dTHX just for it.


  Commit: 61e9b552e10e22a5470fada56394d5161f36f92c
      https://github.com/Perl/perl5/commit/61e9b552e10e22a5470fada56394d5161f36f92c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 89a3ee7d989342542f37066678f549fb483f3381
      https://github.com/Perl/perl5/commit/89a3ee7d989342542f37066678f549fb483f3381
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 8589053ac805b134a4b4bc495e764b552a3eac1c
      https://github.com/Perl/perl5/commit/8589053ac805b134a4b4bc495e764b552a3eac1c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 4d1cda72ff168658590f9d6fc749ac3d595cfd6b
      https://github.com/Perl/perl5/commit/4d1cda72ff168658590f9d6fc749ac3d595cfd6b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: f9e36036ac7f8da5405de2f5c7da236a8d608cc5
      https://github.com/Perl/perl5/commit/f9e36036ac7f8da5405de2f5c7da236a8d608cc5
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 4ee460e9bc95726423ed082bbcac6016b0175f00
      https://github.com/Perl/perl5/commit/4ee460e9bc95726423ed082bbcac6016b0175f00
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: ce1108f4eb574ec569555f60b1103a38470d883e
      https://github.com/Perl/perl5/commit/ce1108f4eb574ec569555f60b1103a38470d883e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: fbfe41a48cf581ce2811ee1fb7ee410fceffe0b7
      https://github.com/Perl/perl5/commit/fbfe41a48cf581ce2811ee1fb7ee410fceffe0b7
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 96344e63d0312366084adb5beb68d30386515ca3
      https://github.com/Perl/perl5/commit/96344e63d0312366084adb5beb68d30386515ca3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 418bcf504896ebbbdf19257c4205227e0be582f8
      https://github.com/Perl/perl5/commit/418bcf504896ebbbdf19257c4205227e0be582f8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: bddcc995e0345f5dc34fa917b3adf4138f3c3921
      https://github.com/Perl/perl5/commit/bddcc995e0345f5dc34fa917b3adf4138f3c3921
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: b9823d4ea6877476bc8a9b11108720c44dd821c8
      https://github.com/Perl/perl5/commit/b9823d4ea6877476bc8a9b11108720c44dd821c8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 61527aa7be04d99055d56ad80e76107722d89638
      https://github.com/Perl/perl5/commit/61527aa7be04d99055d56ad80e76107722d89638
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 09ef1670d2c58c5e9b4ad6fa49d27f2ceda3964a
      https://github.com/Perl/perl5/commit/09ef1670d2c58c5e9b4ad6fa49d27f2ceda3964a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: a043e0670d8746da206c656e6038199b3afbb740
      https://github.com/Perl/perl5/commit/a043e0670d8746da206c656e6038199b3afbb740
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 5c232404fa731b53e8cf9ae440f77ce5b0149750
      https://github.com/Perl/perl5/commit/5c232404fa731b53e8cf9ae440f77ce5b0149750
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: bd851772e1322dc09818f97b2f41f73da2546e3a
      https://github.com/Perl/perl5/commit/bd851772e1322dc09818f97b2f41f73da2546e3a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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
used 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: 556faebb68b33a14d2ea3594a7bdedcb2ee81fce
      https://github.com/Perl/perl5/commit/556faebb68b33a14d2ea3594a7bdedcb2ee81fce
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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.

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: bbe7aa05ea7163f49bfb478c3ca34534799d2be7
      https://github.com/Perl/perl5/commit/bbe7aa05ea7163f49bfb478c3ca34534799d2be7
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: f6fe9df4dd8ff656881314b34e5e091338b04e77
      https://github.com/Perl/perl5/commit/f6fe9df4dd8ff656881314b34e5e091338b04e77
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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 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: f12a4617abe5218c094cf2c83d21f300ef897f00
      https://github.com/Perl/perl5/commit/f12a4617abe5218c094cf2c83d21f300ef897f00
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 36e2cfbe1ba1cdaa7a2219c5b5a86b7bf6121127
      https://github.com/Perl/perl5/commit/36e2cfbe1ba1cdaa7a2219c5b5a86b7bf6121127
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 12b024aa3331fb6893ea7d7fe4959518dfa2ffe8
      https://github.com/Perl/perl5/commit/12b024aa3331fb6893ea7d7fe4959518dfa2ffe8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: dfd933a6e195ade3b76b6ccec8b8dcb4ca2ba5d8
      https://github.com/Perl/perl5/commit/dfd933a6e195ade3b76b6ccec8b8dcb4ca2ba5d8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: fdfff1390a032fe82c3fe5b34b8561620ea6413f
      https://github.com/Perl/perl5/commit/fdfff1390a032fe82c3fe5b34b8561620ea6413f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: df34291d5e533e69aac8c676bdf1dcf035a70ac7
      https://github.com/Perl/perl5/commit/df34291d5e533e69aac8c676bdf1dcf035a70ac7
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: c2bc9fcc76f27a2ce0b36c7632e9e9a2256d0718
      https://github.com/Perl/perl5/commit/c2bc9fcc76f27a2ce0b36c7632e9e9a2256d0718
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: e16cb9467aad14b185d6eafc1062216052febbba
      https://github.com/Perl/perl5/commit/e16cb9467aad14b185d6eafc1062216052febbba
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 46c7def73db818b07da063ae9ce9534a390fa8ed
      https://github.com/Perl/perl5/commit/46c7def73db818b07da063ae9ce9534a390fa8ed
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 5c194227c0cb90d7139bf66e3f0774cbdb98c6eb
      https://github.com/Perl/perl5/commit/5c194227c0cb90d7139bf66e3f0774cbdb98c6eb
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 5cbfe7cefc7b50dabadc7e401c06d9a97ac2e8c9
      https://github.com/Perl/perl5/commit/5cbfe7cefc7b50dabadc7e401c06d9a97ac2e8c9
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M ext/POSIX/POSIX.xs

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

Properly indent some nested preprocessor directives


  Commit: a478ab7e73e236b1ab11a6930d441af1d77e781d
      https://github.com/Perl/perl5/commit/a478ab7e73e236b1ab11a6930d441af1d77e781d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 84f0c795f2d7974809baa908926cbdfa50fa5338
      https://github.com/Perl/perl5/commit/84f0c795f2d7974809baa908926cbdfa50fa5338
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 19bc91f745f20a6626490444429ad44ac25baee8
      https://github.com/Perl/perl5/commit/19bc91f745f20a6626490444429ad44ac25baee8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 17122671bae4b5ed30d504a5b24c4afc480c2efa
      https://github.com/Perl/perl5/commit/17122671bae4b5ed30d504a5b24c4afc480c2efa
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: bb4d8389f2e51ba5e5459ea5fc4a7963af7ab20c
      https://github.com/Perl/perl5/commit/bb4d8389f2e51ba5e5459ea5fc4a7963af7ab20c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 93095407c3a817ba24f94a439bb1bac6427741cb
      https://github.com/Perl/perl5/commit/93095407c3a817ba24f94a439bb1bac6427741cb
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: d14dcf23b074da039b68cff5aa3dee0d2e621f5f
      https://github.com/Perl/perl5/commit/d14dcf23b074da039b68cff5aa3dee0d2e621f5f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 58cac3e8766af6d2be9dc0918696a1f82f3818c1
      https://github.com/Perl/perl5/commit/58cac3e8766af6d2be9dc0918696a1f82f3818c1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: b07045e7c9a47bb7fffd5a9e42bfdb1553d9aeea
      https://github.com/Perl/perl5/commit/b07045e7c9a47bb7fffd5a9e42bfdb1553d9aeea
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M locale.c

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

This allows some preprocessor conditionals to be removed


  Commit: 84207e336e19cc21f308028c31b18ed58c2a0250
      https://github.com/Perl/perl5/commit/84207e336e19cc21f308028c31b18ed58c2a0250
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M locale.c

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

strEQ and && already return booleans


  Commit: c2f3ba9a6e5b855dcf89bf9861525c460dc26847
      https://github.com/Perl/perl5/commit/c2f3ba9a6e5b855dcf89bf9861525c460dc26847
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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 now have seen evidence this guess was wrong, so give up
on it.

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


  Commit: ef26bb56b028ba58145be78f7a8a79bc8240d973
      https://github.com/Perl/perl5/commit/ef26bb56b028ba58145be78f7a8a79bc8240d973
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: efba1d8e544c6087471796b88f32a2312925941b
      https://github.com/Perl/perl5/commit/efba1d8e544c6087471796b88f32a2312925941b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: bdd95129a1946d37c94d24d9d4a2ede6a48d5739
      https://github.com/Perl/perl5/commit/bdd95129a1946d37c94d24d9d4a2ede6a48d5739
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: a55ee8d7e743c654e6aff52d63c7cf8dd0cafe10
      https://github.com/Perl/perl5/commit/a55ee8d7e743c654e6aff52d63c7cf8dd0cafe10
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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 before blindly changing locales that we aren't
already in the desired one, in which case this could be just as well a
no-op, and with this commit becomes one.


  Commit: c3ed7818a13b35cf5235d7e5f53df466f0a30e5b
      https://github.com/Perl/perl5/commit/c3ed7818a13b35cf5235d7e5f53df466f0a30e5b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 26d9067dbaaa18c861a28e0d2a9fa1e5e6d2cb27
      https://github.com/Perl/perl5/commit/26d9067dbaaa18c861a28e0d2a9fa1e5e6d2cb27
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M locale.c

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

This is in preparation for the next commit


  Commit: 069bd232023701ec02b4e44c3ac88f4416722e9a
      https://github.com/Perl/perl5/commit/069bd232023701ec02b4e44c3ac88f4416722e9a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 187494b80f5390cd5522913f0b7bb091c0b26f89
      https://github.com/Perl/perl5/commit/187494b80f5390cd5522913f0b7bb091c0b26f89
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 29bc2cb985db678ea35ccd32de6283ecb19e4020
      https://github.com/Perl/perl5/commit/29bc2cb985db678ea35ccd32de6283ecb19e4020
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: a84d008eefa14bc111151fb3a7836afe176fba5f
      https://github.com/Perl/perl5/commit/a84d008eefa14bc111151fb3a7836afe176fba5f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 46c7a872a55aca5b36b0607ab68808a74cab4751
      https://github.com/Perl/perl5/commit/46c7a872a55aca5b36b0607ab68808a74cab4751
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 524953d9c72673244ddf475943ee30b9655483f8
      https://github.com/Perl/perl5/commit/524953d9c72673244ddf475943ee30b9655483f8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 2c94c7e0bf0276d0f5d03e4116638bbad2323f50
      https://github.com/Perl/perl5/commit/2c94c7e0bf0276d0f5d03e4116638bbad2323f50
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 4a7e8d2435ba7b55a767638aaa4fc409f6e055df
      https://github.com/Perl/perl5/commit/4a7e8d2435ba7b55a767638aaa4fc409f6e055df
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 5bad9c3a85ed502c5bbc04ae6c9ce7a28fef51b1
      https://github.com/Perl/perl5/commit/5bad9c3a85ed502c5bbc04ae6c9ce7a28fef51b1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 553d40528827a500885b3847a879bd58695f6c2a
      https://github.com/Perl/perl5/commit/553d40528827a500885b3847a879bd58695f6c2a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 148aae6d3a033e0cbcd22421ec6dff4527504196
      https://github.com/Perl/perl5/commit/148aae6d3a033e0cbcd22421ec6dff4527504196
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 16d50b2d41d20cc2a679e020c76fb06880b05bcd
      https://github.com/Perl/perl5/commit/16d50b2d41d20cc2a679e020c76fb06880b05bcd
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 08cdb2fa2ebda8c4c6e457f0717b3abca172214e
      https://github.com/Perl/perl5/commit/08cdb2fa2ebda8c4c6e457f0717b3abca172214e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 66326bfa45056284666533820bb64abb00983c3a
      https://github.com/Perl/perl5/commit/66326bfa45056284666533820bb64abb00983c3a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 30e0f238ea02e57870bc078164c5a4a82e2c77dd
      https://github.com/Perl/perl5/commit/30e0f238ea02e57870bc078164c5a4a82e2c77dd
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M locale.c

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


  Commit: 95a82b73bf3cd48861ddcae1ac4f2391692a950d
      https://github.com/Perl/perl5/commit/95a82b73bf3cd48861ddcae1ac4f2391692a950d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: f91a7dbc207242a69c2e0303b806b2f766b0e1d7
      https://github.com/Perl/perl5/commit/f91a7dbc207242a69c2e0303b806b2f766b0e1d7
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: f45d4b6fea8cc122619a868af7de5333cdb063df
      https://github.com/Perl/perl5/commit/f45d4b6fea8cc122619a868af7de5333cdb063df
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: b5d1411438f1289844956838034278e59585ae74
      https://github.com/Perl/perl5/commit/b5d1411438f1289844956838034278e59585ae74
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M mg.c

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

Indent newly formed block from the previous commit.


  Commit: 0fb1f07a7597700346acf206a24bafdbb246bf89
      https://github.com/Perl/perl5/commit/0fb1f07a7597700346acf206a24bafdbb246bf89
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: cfcab22a686d378149d449f6125894e8b5218760
      https://github.com/Perl/perl5/commit/cfcab22a686d378149d449f6125894e8b5218760
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: b8aaf13177eeb2c6622c2bfab13ffa32a8e2546a
      https://github.com/Perl/perl5/commit/b8aaf13177eeb2c6622c2bfab13ffa32a8e2546a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: a05c5bd01566c05f9bc2238622c97cfad8283654
      https://github.com/Perl/perl5/commit/a05c5bd01566c05f9bc2238622c97cfad8283654
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Revamp sync_locale()

This rarely used function was actually failing to do what it purported
in some Configurations.


  Commit: ecbe1ac75bc1d0acae1821e14d7f0f1994587f9d
      https://github.com/Perl/perl5/commit/ecbe1ac75bc1d0acae1821e14d7f0f1994587f9d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 1ab28ff7d2c556fbac38928c185e6268592acb52
      https://github.com/Perl/perl5/commit/1ab28ff7d2c556fbac38928c185e6268592acb52
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  Revamp switch_to_global_locale()

Prior to this commit, the global locale was not always getting populated
with the values from the thread being switched.


  Commit: 46d06a63fe3b8ddec79101d3297a3aeacefb3ad7
      https://github.com/Perl/perl5/commit/46d06a63fe3b8ddec79101d3297a3aeacefb3ad7
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 5f9536d5ba319168d8a399d8dba2a84b229ceff8
      https://github.com/Perl/perl5/commit/5f9536d5ba319168d8a399d8dba2a84b229ceff8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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


  Commit: 5947a37869338d096f3ca1c9cdf593482bc87f6c
      https://github.com/Perl/perl5/commit/5947a37869338d096f3ca1c9cdf593482bc87f6c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 7a115020484305b876c7ddb945cc912d96e91ba2
      https://github.com/Perl/perl5/commit/7a115020484305b876c7ddb945cc912d96e91ba2
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 0215c6a334fe56a1f4f8d99d35111771303036db
      https://github.com/Perl/perl5/commit/0215c6a334fe56a1f4f8d99d35111771303036db
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: b5f02ba773f30e5f696d38d69018399daab6241b
      https://github.com/Perl/perl5/commit/b5f02ba773f30e5f696d38d69018399daab6241b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 291634823e51c46042da20bb522fb326aca074a3
      https://github.com/Perl/perl5/commit/291634823e51c46042da20bb522fb326aca074a3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M locale.c

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


  Commit: aaf17842bd6fefcc2952c3a9510a3762bd556a7b
      https://github.com/Perl/perl5/commit/aaf17842bd6fefcc2952c3a9510a3762bd556a7b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 2c8ad41cbf54bf66a9a0b80e3ad8f7cc54c9f079
      https://github.com/Perl/perl5/commit/2c8ad41cbf54bf66a9a0b80e3ad8f7cc54c9f079
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 880391945302d327076b78a59bff949897b6728f
      https://github.com/Perl/perl5/commit/880391945302d327076b78a59bff949897b6728f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 37956da395d502a665c4b5a1a6a9116b66cce865
      https://github.com/Perl/perl5/commit/37956da395d502a665c4b5a1a6a9116b66cce865
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M locale.c

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


  Commit: 116713d04d0dfcd289d6d8e05357eac131e8efdd
      https://github.com/Perl/perl5/commit/116713d04d0dfcd289d6d8e05357eac131e8efdd
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 441ed56f9d15214dc0ac48d188ad2e648c54b8df
      https://github.com/Perl/perl5/commit/441ed56f9d15214dc0ac48d188ad2e648c54b8df
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 14ca76f1f30a0d29fefc28e943c9f87f491ccd7d
      https://github.com/Perl/perl5/commit/14ca76f1f30a0d29fefc28e943c9f87f491ccd7d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 3e61c562fcf88dada753e8fb5ec5444e13bd88e8
      https://github.com/Perl/perl5/commit/3e61c562fcf88dada753e8fb5ec5444e13bd88e8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 58ee29e6537c466bb703c20dd35d13484d24ef5f
      https://github.com/Perl/perl5/commit/58ee29e6537c466bb703c20dd35d13484d24ef5f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: f82e4ef59da0b6c5dfbff89c3e3a02be1c56b400
      https://github.com/Perl/perl5/commit/f82e4ef59da0b6c5dfbff89c3e3a02be1c56b400
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M lib/locale.t

  Log Message:
  -----------
  XXX temp: Windows debug


  Commit: 5843b278cb22544295b6ddd1f63a2ef3c37f8a8d
      https://github.com/Perl/perl5/commit/5843b278cb22544295b6ddd1f63a2ef3c37f8a8d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 278e08cfefefa5f269da7441e13d798eeb592e26
      https://github.com/Perl/perl5/commit/278e08cfefefa5f269da7441e13d798eeb592e26
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: e0e97d0e38a34a674bc60c191e50a305a9e8d3d3
      https://github.com/Perl/perl5/commit/e0e97d0e38a34a674bc60c191e50a305a9e8d3d3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 760c81115b02de62d3736ab103aaaecec2a5245b
      https://github.com/Perl/perl5/commit/760c81115b02de62d3736ab103aaaecec2a5245b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M locale.c

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

Hex is the more familiar form


  Commit: 5958ad5ffecb1b230128e8a1e4dd812090719b80
      https://github.com/Perl/perl5/commit/5958ad5ffecb1b230128e8a1e4dd812090719b80
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 357519b5ab07187491c24a29b8fc0a79d0b5af56
      https://github.com/Perl/perl5/commit/357519b5ab07187491c24a29b8fc0a79d0b5af56
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 28e76efdc90a6cd36310953c85bab209df1dd52f
      https://github.com/Perl/perl5/commit/28e76efdc90a6cd36310953c85bab209df1dd52f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 4971a372fbafac26b12d2d45db75722e2d78810c
      https://github.com/Perl/perl5/commit/4971a372fbafac26b12d2d45db75722e2d78810c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 1a67f1757f21664de4c11a9fd7e39ea9e76dc206
      https://github.com/Perl/perl5/commit/1a67f1757f21664de4c11a9fd7e39ea9e76dc206
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 3c2de9d9f9351af633340f17b254559afbd5a3ac
      https://github.com/Perl/perl5/commit/3c2de9d9f9351af633340f17b254559afbd5a3ac
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 315c61d6366605507f6dbfbbcf182d021c21392d
      https://github.com/Perl/perl5/commit/315c61d6366605507f6dbfbbcf182d021c21392d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: fe479fcf6f92d0470527bbb7a6bf587ec22f26db
      https://github.com/Perl/perl5/commit/fe479fcf6f92d0470527bbb7a6bf587ec22f26db
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: d83f835626ea7872a8dfc955fbcc301b190c243c
      https://github.com/Perl/perl5/commit/d83f835626ea7872a8dfc955fbcc301b190c243c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M locale.c
    M perl.h

  Log Message:
  -----------
  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 setlocalwes 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: b50fc54283d4ad916b4b3873947e6b35c3a7b3b9
      https://github.com/Perl/perl5/commit/b50fc54283d4ad916b4b3873947e6b35c3a7b3b9
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M perl.h

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

This simplifies slightly, and will allow further simplification


  Commit: 1f5288cc2c304e5894f74acb90833210a77a467a
      https://github.com/Perl/perl5/commit/1f5288cc2c304e5894f74acb90833210a77a467a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M perl.h

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

To enable future simplifications


  Commit: 52bbe4c8ac3eb3c4f38ed575bd512851596e57ab
      https://github.com/Perl/perl5/commit/52bbe4c8ac3eb3c4f38ed575bd512851596e57ab
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 580ab66d4a992896b0ec8be94e2a6385b2d22c0d
      https://github.com/Perl/perl5/commit/580ab66d4a992896b0ec8be94e2a6385b2d22c0d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 282edca83a44dd8186d865e30abc9f21bc91fa91
      https://github.com/Perl/perl5/commit/282edca83a44dd8186d865e30abc9f21bc91fa91
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M cygwin/cygwin.c

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


  Commit: 03cd4e1dbf41d0425a89d2331b7011698a999850
      https://github.com/Perl/perl5/commit/03cd4e1dbf41d0425a89d2331b7011698a999850
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: da0a2ec5baf06f07a8c7623c5dca03af61e9ae60
      https://github.com/Perl/perl5/commit/da0a2ec5baf06f07a8c7623c5dca03af61e9ae60
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M embedvar.h
    M ext/POSIX/POSIX.xs
    M handy.h
    M inline.h
    M intrpvar.h
    M locale.c
    M makedef.pl
    M perl.c
    M perl.h
    M proto.h
    M sv.c
    M util.c

  Log Message:
  -----------
  Emul


  Commit: 51cb56d12e4f6c06fbe0e2a3a87c8efe7b049b88
      https://github.com/Perl/perl5/commit/51cb56d12e4f6c06fbe0e2a3a87c8efe7b049b88
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M lib/locale_threads.t
    M t/loc_tools.pl

  Log Message:
  -----------
  loc tools after emulation


  Commit: d2a6d7672e875d39b2d6dc9bc1c56531a0e04289
      https://github.com/Perl/perl5/commit/d2a6d7672e875d39b2d6dc9bc1c56531a0e04289
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M pp.c

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


  Commit: 5bb2e2327068e82326117d850cbdb24267a8d668
      https://github.com/Perl/perl5/commit/5bb2e2327068e82326117d850cbdb24267a8d668
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

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

  Log Message:
  -----------
  XXX finish fold_locale

tests, copy in thread create


  Commit: 3fbda52ba0bbdc3b006960af17df3916bbbef6d5
      https://github.com/Perl/perl5/commit/3fbda52ba0bbdc3b006960af17df3916bbbef6d5
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M inline.h
    M locale.c

  Log Message:
  -----------
  XXX temp debug? locale.c, inline.h:foldEQ_locale


  Commit: 5841e5d4896aabace9e5c8d87ffc9385223056f2
      https://github.com/Perl/perl5/commit/5841e5d4896aabace9e5c8d87ffc9385223056f2
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M locale.c

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


  Commit: f8086e828eb68c851fa120e6d2201f061468c3e1
      https://github.com/Perl/perl5/commit/f8086e828eb68c851fa120e6d2201f061468c3e1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M locale.c

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


  Commit: 27a6da55cad67cf0eafb63742c206f3af21f1b31
      https://github.com/Perl/perl5/commit/27a6da55cad67cf0eafb63742c206f3af21f1b31
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: cbe2e59a934a3e3bf61e462e8ca35e3fc9b44701
      https://github.com/Perl/perl5/commit/cbe2e59a934a3e3bf61e462e8ca35e3fc9b44701
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 29a2876ac6be1338b8897603a465546e96a103de
      https://github.com/Perl/perl5/commit/29a2876ac6be1338b8897603a465546e96a103de
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: bc041e53929dce809fef7d46b4ff3ceff892bcdb
      https://github.com/Perl/perl5/commit/bc041e53929dce809fef7d46b4ff3ceff892bcdb
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M perl.h

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

So they are closer to related statements


  Commit: 257ed7f225141dd520626f30acab0d251b921218
      https://github.com/Perl/perl5/commit/257ed7f225141dd520626f30acab0d251b921218
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: faf6e2cdf8d5516d790c31a9bf493e43ce1d18cc
      https://github.com/Perl/perl5/commit/faf6e2cdf8d5516d790c31a9bf493e43ce1d18cc
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 3fdf6fe5df177c72e0b0ebe926138be2984402a9
      https://github.com/Perl/perl5/commit/3fdf6fe5df177c72e0b0ebe926138be2984402a9
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M pp_sys.c

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


  Commit: cd77b3e5c29787c4743b9e25b268b75109afbc73
      https://github.com/Perl/perl5/commit/cd77b3e5c29787c4743b9e25b268b75109afbc73
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M win32/win32.c

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

These could have races.


  Commit: 062dd329066c034cdcdb66a900b38defe35d4a02
      https://github.com/Perl/perl5/commit/062dd329066c034cdcdb66a900b38defe35d4a02
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M util.c

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

per the Posix standard


  Commit: 5e2fd1b66e3a06bfe6458831825aa53f989ec1cb
      https://github.com/Perl/perl5/commit/5e2fd1b66e3a06bfe6458831825aa53f989ec1cb
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

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

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


  Commit: caa2c11397fbcb504bedcf23e9bb9d63d47bc2d1
      https://github.com/Perl/perl5/commit/caa2c11397fbcb504bedcf23e9bb9d63d47bc2d1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M ext/POSIX/POSIX.xs

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


  Commit: 3a5b8dd6f4b397c1739d1419f44dfb6dfaacaaad
      https://github.com/Perl/perl5/commit/3a5b8dd6f4b397c1739d1419f44dfb6dfaacaaad
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 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: 29e307cec51611ac4b003611a7301d05ed641afc
      https://github.com/Perl/perl5/commit/29e307cec51611ac4b003611a7301d05ed641afc
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

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

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


  Commit: 27d4b54794d9e77d870490b6a9b22bb232569fd1
      https://github.com/Perl/perl5/commit/27d4b54794d9e77d870490b6a9b22bb232569fd1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

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

  Log Message:
  -----------
  cpan/Time-Piece/Piece.xs: Use foldEQ_locale() if available

Using this is preferable to the glibc function due to it being tailored
for Perl, and is thread-safe in the latest versions.


  Commit: f57d8bc07a9eaa7f0f7be18a630b05656da1e5ef
      https://github.com/Perl/perl5/commit/f57d8bc07a9eaa7f0f7be18a630b05656da1e5ef
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

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

  Log Message:
  -----------
  Time-Piece/Piece.xs: Use isDIGIT, not isdigit

isDIGIT is not locale-dependent, matching just [0-9].  There was a bug
using isdigit() in at least one place where it calculated the value of
the digit by subtracting the original of '0' from it.  This works only
if the digit is in [0-9], but there are locales where there is another
set of digits, and so would give a very wrong result.  That makes it
clear to me that only [0-9] were assumed by the original authors.


  Commit: 425ccce82ac4edbbb2699de7e7c9d2db9917c9bf
      https://github.com/Perl/perl5/commit/425ccce82ac4edbbb2699de7e7c9d2db9917c9bf
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

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

  Log Message:
  -----------
  XXX Time-Piece/Piece.xs: Use isSPACE not isspace

Same msg as prev commit


  Commit: 9c46f804aa255755f9058b53879be6aaeb3a0c5b
      https://github.com/Perl/perl5/commit/9c46f804aa255755f9058b53879be6aaeb3a0c5b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

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

  Log Message:
  -----------
  XXX Time-Piece/Piece.xs: Use isUPPER not isupper

Same msg as prev commit


  Commit: 57981e66044ca6e68156f2e6fb9df66063ef8e73
      https://github.com/Perl/perl5/commit/57981e66044ca6e68156f2e6fb9df66063ef8e73
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

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

  Log Message:
  -----------
  Time-Piece/Piece.xs: Cleanup missing foldEQ fallback

This changes the code to use foldEQ() if available, and to define foldEQ
in terms of fallbacks if not.  The previous code did not provide a final
fallback.


  Commit: 81ef096d86a9914e17ac27e42e7eb73c1017f128
      https://github.com/Perl/perl5/commit/81ef096d86a9914e17ac27e42e7eb73c1017f128
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

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

  Log Message:
  -----------
  more timepiece


  Commit: f83034d8c685cf3f9645dd5f14e0ee5845b1af09
      https://github.com/Perl/perl5/commit/f83034d8c685cf3f9645dd5f14e0ee5845b1af09
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M pod/perlhacktips.pod

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


  Commit: 09ac2c1d9d18422f56a3064219c3b402f4b30cd0
      https://github.com/Perl/perl5/commit/09ac2c1d9d18422f56a3064219c3b402f4b30cd0
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M dist/IO/IO.xs

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


  Commit: 9027779beaa873f5600dbdea85afdb0f4eabc6a0
      https://github.com/Perl/perl5/commit/9027779beaa873f5600dbdea85afdb0f4eabc6a0
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M hints/freebsd.sh

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


  Commit: 7cc17633cb474c420bfc39dae0d897c980ca2e80
      https://github.com/Perl/perl5/commit/7cc17633cb474c420bfc39dae0d897c980ca2e80
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M thread.h

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


  Commit: 480001e90b998e95e58d9b93ca6fc0a2dae79a2b
      https://github.com/Perl/perl5/commit/480001e90b998e95e58d9b93ca6fc0a2dae79a2b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M thread.h

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


  Commit: b93ae647794aae3cb99ad76e9beceaf5948fd0a5
      https://github.com/Perl/perl5/commit/b93ae647794aae3cb99ad76e9beceaf5948fd0a5
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M perl.h

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


  Commit: 1b091d66b693f2744a68afcf0d7f850ba4c6fdb0
      https://github.com/Perl/perl5/commit/1b091d66b693f2744a68afcf0d7f850ba4c6fdb0
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-14 (Sun, 14 Mar 2021)

  Changed paths:
    M handy.h
    M iperlsys.h
    M locale.c
    M perl.h
    M regen/reentr.pl
    M regexec.c
    M util.c

  Log Message:
  -----------
  Notes


Compare: https://github.com/Perl/perl5/compare/9a73614017f9...1b091d66b693



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