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[Perl/perl5] 166ce4: perlapi: Rmv repeated word

From:
Karl Williamson via perl5-changes
Date:
May 4, 2021 03:37
Subject:
[Perl/perl5] 166ce4: perlapi: Rmv repeated word
Message ID:
Perl/perl5/push/refs/heads/smoke-me/khw-locale/ec4465-7b3464@github.com
  Branch: refs/heads/smoke-me/khw-locale
  Home:   https://github.com/Perl/perl5
  Commit: 166ce435d38b7cbc40c76cb4c258c8846ef263cf
      https://github.com/Perl/perl5/commit/166ce435d38b7cbc40c76cb4c258c8846ef263cf
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M sv.c

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


  Commit: 5f0a945c72c8c72b490d1084efd942962afbee69
      https://github.com/Perl/perl5/commit/5f0a945c72c8c72b490d1084efd942962afbee69
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M dosish.h
    M unixish.h

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

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

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

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


  Commit: 96afca563c39bdebcab3ec20c3442894298b2722
      https://github.com/Perl/perl5/commit/96afca563c39bdebcab3ec20c3442894298b2722
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: e1e1556c5466bddc84db2cd1e7a05a2d30773b8e
      https://github.com/Perl/perl5/commit/e1e1556c5466bddc84db2cd1e7a05a2d30773b8e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c
    M perl.h

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

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


  Commit: 251b4b76b45ac436b98ae62210d00f195d78d611
      https://github.com/Perl/perl5/commit/251b4b76b45ac436b98ae62210d00f195d78d611
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: 5cce9af9b553705e50e5e4b2348b09f1a88d6374
      https://github.com/Perl/perl5/commit/5cce9af9b553705e50e5e4b2348b09f1a88d6374
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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


  Commit: f0544bf7527abca050d70de83fa330ff1f5583b4
      https://github.com/Perl/perl5/commit/f0544bf7527abca050d70de83fa330ff1f5583b4
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M handy.h

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

Replace isIDFIRST_LC and isWORD_CHAR_LC isIDFIRST_LC  with slightly
faster implementations.


  Commit: 992bb783b263899165f3b44acee854722e2951e4
      https://github.com/Perl/perl5/commit/992bb783b263899165f3b44acee854722e2951e4
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M handy.h

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

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

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


  Commit: fe05bc927c84836154ab2646009c9fe3f512f31a
      https://github.com/Perl/perl5/commit/fe05bc927c84836154ab2646009c9fe3f512f31a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M handy.h

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


  Commit: 07ef6947bb801ad6d869d7505ae187b072849a96
      https://github.com/Perl/perl5/commit/07ef6947bb801ad6d869d7505ae187b072849a96
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M handy.h

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


  Commit: fa077b9dfc66c1b5610deac573d966bd4c18228e
      https://github.com/Perl/perl5/commit/fa077b9dfc66c1b5610deac573d966bd4c18228e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M handy.h

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

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


  Commit: 663070f9b3a790aaab9f42b6f0ce5612a7bbf12d
      https://github.com/Perl/perl5/commit/663070f9b3a790aaab9f42b6f0ce5612a7bbf12d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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


  Commit: adff1710057abd005411a1d62af3c363a3ebcb54
      https://github.com/Perl/perl5/commit/adff1710057abd005411a1d62af3c363a3ebcb54
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M handy.h

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

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


  Commit: 8cb2a99e8c863c927da1b86cc50664af52110c99
      https://github.com/Perl/perl5/commit/8cb2a99e8c863c927da1b86cc50664af52110c99
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M handy.h

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

This changes the parameters etc, in preparation for further changes


  Commit: c7d696e280cb3bc7d226a6aeacb8f004cfa27c0b
      https://github.com/Perl/perl5/commit/c7d696e280cb3bc7d226a6aeacb8f004cfa27c0b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M handy.h

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

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


  Commit: a6b6bc6b657eabc47db55856c86b395abc1d8d7d
      https://github.com/Perl/perl5/commit/a6b6bc6b657eabc47db55856c86b395abc1d8d7d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M handy.h

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

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


  Commit: 9eecf3e8bb304abcc1f2e3e21086a5b757e98203
      https://github.com/Perl/perl5/commit/9eecf3e8bb304abcc1f2e3e21086a5b757e98203
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M handy.h

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

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


  Commit: ac442a90b5e7591f83a312da51caadedae96eac8
      https://github.com/Perl/perl5/commit/ac442a90b5e7591f83a312da51caadedae96eac8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M handy.h

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

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


  Commit: 3f5221c498b0c67f234fc351e4719788043f9d14
      https://github.com/Perl/perl5/commit/3f5221c498b0c67f234fc351e4719788043f9d14
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M handy.h

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

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

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


  Commit: dfc8c00fdcdce7c6af8d33fe9f8a4225715d51a3
      https://github.com/Perl/perl5/commit/dfc8c00fdcdce7c6af8d33fe9f8a4225715d51a3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M handy.h

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

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


  Commit: 0a84ed45f0a66171bfb020a2e6dfea5cebe0956f
      https://github.com/Perl/perl5/commit/0a84ed45f0a66171bfb020a2e6dfea5cebe0956f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M handy.h

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

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

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

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

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


  Commit: 439fcbcc5ea60ca8fd3a717d40942cb0eed81814
      https://github.com/Perl/perl5/commit/439fcbcc5ea60ca8fd3a717d40942cb0eed81814
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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


  Commit: 5e6c262026ca1cbd66186a5f2bf3e74ce57fcbc7
      https://github.com/Perl/perl5/commit/5e6c262026ca1cbd66186a5f2bf3e74ce57fcbc7
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M handy.h

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


  Commit: 69318844bc39cca3871ff2ea6eebb01df7e270b7
      https://github.com/Perl/perl5/commit/69318844bc39cca3871ff2ea6eebb01df7e270b7
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M handy.h

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

As a convenience to other code.


  Commit: f46c605675319adfac86fba3ea00532793921e3e
      https://github.com/Perl/perl5/commit/f46c605675319adfac86fba3ea00532793921e3e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M regexec.c

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

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


  Commit: bd4e721a501a36856e7bd8235c9b69d0d0175df2
      https://github.com/Perl/perl5/commit/bd4e721a501a36856e7bd8235c9b69d0d0175df2
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M regexec.c

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

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


  Commit: 47b87f483989ebcea52b20b28a5d61e1aaa5bcfd
      https://github.com/Perl/perl5/commit/47b87f483989ebcea52b20b28a5d61e1aaa5bcfd
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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


  Commit: e88757606c22773ed99a2960125602e5acef0f99
      https://github.com/Perl/perl5/commit/e88757606c22773ed99a2960125602e5acef0f99
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c
    M perl.h

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

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


  Commit: fa7a4b20775f7650e69d99e5888cb018abe610c3
      https://github.com/Perl/perl5/commit/fa7a4b20775f7650e69d99e5888cb018abe610c3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c
    M perl.h

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

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


  Commit: 4a87b18d8064e32e11fb1f94a7dcdbf9e5695f42
      https://github.com/Perl/perl5/commit/4a87b18d8064e32e11fb1f94a7dcdbf9e5695f42
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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

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


  Commit: ddd03c0e794037b4bcb6170b6db651f9e064ff18
      https://github.com/Perl/perl5/commit/ddd03c0e794037b4bcb6170b6db651f9e064ff18
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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


  Commit: a40e704ef698b04190c706e90be449aa4bb006ee
      https://github.com/Perl/perl5/commit/a40e704ef698b04190c706e90be449aa4bb006ee
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: ffd8f16643afdd9027fd71b9caca2245d912321c
      https://github.com/Perl/perl5/commit/ffd8f16643afdd9027fd71b9caca2245d912321c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: fc79c532293721224f30f7ea2b68611d6c9683fa
      https://github.com/Perl/perl5/commit/fc79c532293721224f30f7ea2b68611d6c9683fa
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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

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

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


  Commit: 78fc95e9f7329329a0cd131ee599a427378b7b46
      https://github.com/Perl/perl5/commit/78fc95e9f7329329a0cd131ee599a427378b7b46
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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

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

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


  Commit: a826da668bc5cc8a12cb18b7a221e45eea985115
      https://github.com/Perl/perl5/commit/a826da668bc5cc8a12cb18b7a221e45eea985115
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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

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

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


  Commit: ea153d5c535c678a76f0679eae5cfb73c8d293a0
      https://github.com/Perl/perl5/commit/ea153d5c535c678a76f0679eae5cfb73c8d293a0
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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


  Commit: 23cc3fb1364ecaa2a86d178d052d98745b957d20
      https://github.com/Perl/perl5/commit/23cc3fb1364ecaa2a86d178d052d98745b957d20
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: 50c502faeab33f2a1920638acf6a63fcfd728dcd
      https://github.com/Perl/perl5/commit/50c502faeab33f2a1920638acf6a63fcfd728dcd
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

Some of these are to make future difference listings shorter

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


  Commit: 2ea107a79cd55ff1b907239473d22e0db44d40d5
      https://github.com/Perl/perl5/commit/2ea107a79cd55ff1b907239473d22e0db44d40d5
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: 2d953b4f3cc4b9c66023ca1a662e2098d7694e6a
      https://github.com/Perl/perl5/commit/2d953b4f3cc4b9c66023ca1a662e2098d7694e6a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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


  Commit: 21ad74c1c5d4aac9d3b282ec2dffbc703ead936f
      https://github.com/Perl/perl5/commit/21ad74c1c5d4aac9d3b282ec2dffbc703ead936f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: 48a9e893c90e4740969d5416263b404899bc42bc
      https://github.com/Perl/perl5/commit/48a9e893c90e4740969d5416263b404899bc42bc
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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

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

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


  Commit: fd6afb12cd980cd02ba2160d2179cd6611cf5c4a
      https://github.com/Perl/perl5/commit/fd6afb12cd980cd02ba2160d2179cd6611cf5c4a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: 1e779d7036db32987be1fd9b39c6d55f488cc0e7
      https://github.com/Perl/perl5/commit/1e779d7036db32987be1fd9b39c6d55f488cc0e7
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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

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

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


  Commit: db1c165f167d9c7fdc85ce4cc46dd695e8de0a90
      https://github.com/Perl/perl5/commit/db1c165f167d9c7fdc85ce4cc46dd695e8de0a90
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: 246422956bca74d8ca6dc872eaa6eaeec6ec0a2a
      https://github.com/Perl/perl5/commit/246422956bca74d8ca6dc872eaa6eaeec6ec0a2a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: 5c6084511684d5e7c479d03dd338980f49cf2f55
      https://github.com/Perl/perl5/commit/5c6084511684d5e7c479d03dd338980f49cf2f55
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: 216b964babaebc2091cf58b4915a906b8ba0b3c1
      https://github.com/Perl/perl5/commit/216b964babaebc2091cf58b4915a906b8ba0b3c1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

This panic is done when a setlocale unexpectedly fails.


  Commit: 732334bf83e3c0fc1498a00ceaca5c3a97782055
      https://github.com/Perl/perl5/commit/732334bf83e3c0fc1498a00ceaca5c3a97782055
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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


  Commit: dd999a6b0e7861465f4be09ec146e1b68570dc4e
      https://github.com/Perl/perl5/commit/dd999a6b0e7861465f4be09ec146e1b68570dc4e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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

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


  Commit: 1792f372a095eaf00b26692307d1062e3c1dcf3d
      https://github.com/Perl/perl5/commit/1792f372a095eaf00b26692307d1062e3c1dcf3d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: 1bf8d8d4e0a86f7262cdabd805b7180f14752a2a
      https://github.com/Perl/perl5/commit/1bf8d8d4e0a86f7262cdabd805b7180f14752a2a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: c7b370e1b2f87cc61de7d69fa4b301d7b1f1491a
      https://github.com/Perl/perl5/commit/c7b370e1b2f87cc61de7d69fa4b301d7b1f1491a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M perl.h

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

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


  Commit: c872fe2e7161f2e5584b29ed198df81a145fcd96
      https://github.com/Perl/perl5/commit/c872fe2e7161f2e5584b29ed198df81a145fcd96
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c
    M perl.h

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

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

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

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

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


  Commit: c543e5a133b016b043fd104123e8c92fad282cbf
      https://github.com/Perl/perl5/commit/c543e5a133b016b043fd104123e8c92fad282cbf
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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

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

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

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

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


  Commit: cf96f1ff3d4c63c22c9745cf2a1119bee2c79808
      https://github.com/Perl/perl5/commit/cf96f1ff3d4c63c22c9745cf2a1119bee2c79808
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

This adds some compile safety to these.


  Commit: 019da830098c7b069762cd2b5e478842b353f224
      https://github.com/Perl/perl5/commit/019da830098c7b069762cd2b5e478842b353f224
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

A future commit will want this


  Commit: cb6b33b12ff05c8117f0e9cab72219865494f6fd
      https://github.com/Perl/perl5/commit/cb6b33b12ff05c8117f0e9cab72219865494f6fd
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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

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

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

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

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


  Commit: aa6d1fdf60b7beb28c0ba9bf44e73dc49efde2a8
      https://github.com/Perl/perl5/commit/aa6d1fdf60b7beb28c0ba9bf44e73dc49efde2a8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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


  Commit: 563424dbe4537386171c637c15060589ec425326
      https://github.com/Perl/perl5/commit/563424dbe4537386171c637c15060589ec425326
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: 22148ca271afa5dc1d48a23447c0272ea29afc0c
      https://github.com/Perl/perl5/commit/22148ca271afa5dc1d48a23447c0272ea29afc0c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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

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


  Commit: 219bf5ee04d4f8c84e56de9214ecdacf89bc3541
      https://github.com/Perl/perl5/commit/219bf5ee04d4f8c84e56de9214ecdacf89bc3541
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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

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

A goto is hence replaced by a recursive call.


  Commit: 52b0274b2ae6f29df3453a509c4ade3986c7487d
      https://github.com/Perl/perl5/commit/52b0274b2ae6f29df3453a509c4ade3986c7487d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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


  Commit: e5efb27bd38ec68f95348e1120db61699567b49b
      https://github.com/Perl/perl5/commit/e5efb27bd38ec68f95348e1120db61699567b49b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: a2526b2abde923c7ca0e5c19388c95154741d226
      https://github.com/Perl/perl5/commit/a2526b2abde923c7ca0e5c19388c95154741d226
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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

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


  Commit: 430ab16e21df74cd47ccd4300a3f88b8a5f2a4bd
      https://github.com/Perl/perl5/commit/430ab16e21df74cd47ccd4300a3f88b8a5f2a4bd
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: 5de4c4ddabd03ba050de7d416a7f284a93aa9a6b
      https://github.com/Perl/perl5/commit/5de4c4ddabd03ba050de7d416a7f284a93aa9a6b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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


  Commit: 1b7cae1f37f5c949dff1da53ebfba6632e3e7732
      https://github.com/Perl/perl5/commit/1b7cae1f37f5c949dff1da53ebfba6632e3e7732
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M sv.c

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

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


  Commit: 07841c3a872fd4c0edfd49129a453b79f3860dcf
      https://github.com/Perl/perl5/commit/07841c3a872fd4c0edfd49129a453b79f3860dcf
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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

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

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


  Commit: 66e8937fd69937e54666f26419b23e4c6c075b9c
      https://github.com/Perl/perl5/commit/66e8937fd69937e54666f26419b23e4c6c075b9c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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


  Commit: 977380f44f21c710e18fe1fb7db0f17f05775dde
      https://github.com/Perl/perl5/commit/977380f44f21c710e18fe1fb7db0f17f05775dde
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: 6371eb8e8ab2fbd7491828db44d5b8553eaa90b3
      https://github.com/Perl/perl5/commit/6371eb8e8ab2fbd7491828db44d5b8553eaa90b3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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


  Commit: 9d1ad19b7971dd919f3197aaa248ffdd2cfd420f
      https://github.com/Perl/perl5/commit/9d1ad19b7971dd919f3197aaa248ffdd2cfd420f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M ext/POSIX/POSIX.xs

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

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


  Commit: a9b65b4f6e48f240e9b34117e28a35838e5d209c
      https://github.com/Perl/perl5/commit/a9b65b4f6e48f240e9b34117e28a35838e5d209c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M ext/POSIX/POSIX.xs

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

Properly indent some nested preprocessor directives


  Commit: 0c94487e8c47a96b3e916ebbda0bd15acf41aefc
      https://github.com/Perl/perl5/commit/0c94487e8c47a96b3e916ebbda0bd15acf41aefc
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

This avoids duplicated logic.


  Commit: e945de00c2bf20cbe7874767db40a256ee5d7d7e
      https://github.com/Perl/perl5/commit/e945de00c2bf20cbe7874767db40a256ee5d7d7e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: 779429721a12fe21d5da5a0a8ff191bb3edf4080
      https://github.com/Perl/perl5/commit/779429721a12fe21d5da5a0a8ff191bb3edf4080
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: 32e19925fa6289bfeaf52f70eaff76eb07a802be
      https://github.com/Perl/perl5/commit/32e19925fa6289bfeaf52f70eaff76eb07a802be
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: aaa2ec2de82f0ff8bd7ac11f1f799c57f3657388
      https://github.com/Perl/perl5/commit/aaa2ec2de82f0ff8bd7ac11f1f799c57f3657388
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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

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


  Commit: a5fb1f634afa45e0d136d608a10f639195681f05
      https://github.com/Perl/perl5/commit/a5fb1f634afa45e0d136d608a10f639195681f05
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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

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


  Commit: e84e82befa86b66e30b2c689fd0bcac7bfb78fc3
      https://github.com/Perl/perl5/commit/e84e82befa86b66e30b2c689fd0bcac7bfb78fc3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

The extra syllable(s) are unnecessary noise


  Commit: 76059fa6b43f0e607661dc3fd67555fdf5934d72
      https://github.com/Perl/perl5/commit/76059fa6b43f0e607661dc3fd67555fdf5934d72
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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


  Commit: 5d092abecc89913b32f12c77a79b6faf110720b1
      https://github.com/Perl/perl5/commit/5d092abecc89913b32f12c77a79b6faf110720b1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

This allows some preprocessor conditionals to be removed


  Commit: 228b36457141c00b447739528e7b5afb58a3bbb6
      https://github.com/Perl/perl5/commit/228b36457141c00b447739528e7b5afb58a3bbb6
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

strEQ and && already return booleans


  Commit: 30bd6a00bac989f5aec9cfb56b5841c6c68059bf
      https://github.com/Perl/perl5/commit/30bd6a00bac989f5aec9cfb56b5841c6c68059bf
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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

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


  Commit: bbf9de5b9b2276bae2cfcda2a2864ac1c9ab2a04
      https://github.com/Perl/perl5/commit/bbf9de5b9b2276bae2cfcda2a2864ac1c9ab2a04
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: 02e543ee43dc6addcef2a9c13ea85435120a54ff
      https://github.com/Perl/perl5/commit/02e543ee43dc6addcef2a9c13ea85435120a54ff
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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


  Commit: 2c48b49dc0c607208e7cf9193cf7f6074c574779
      https://github.com/Perl/perl5/commit/2c48b49dc0c607208e7cf9193cf7f6074c574779
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

Previous commits have gotten rid of this parameter to S_save_to_buffer


  Commit: ce06a799e6b02b3c36ca8459a50ab3b5f38558c3
      https://github.com/Perl/perl5/commit/ce06a799e6b02b3c36ca8459a50ab3b5f38558c3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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

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


  Commit: 1d7f0ecee4c20dfff5ad2564239ed4b999c3384d
      https://github.com/Perl/perl5/commit/1d7f0ecee4c20dfff5ad2564239ed4b999c3384d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

This is in preparation for the next commit


  Commit: 3f1f7dbfa4da8184b1a5faf7fc69276d6ec43486
      https://github.com/Perl/perl5/commit/3f1f7dbfa4da8184b1a5faf7fc69276d6ec43486
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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

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


  Commit: b8a4c5dd41e3563dab8a15ad8a592cc8aff7a31a
      https://github.com/Perl/perl5/commit/b8a4c5dd41e3563dab8a15ad8a592cc8aff7a31a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: 08fb56ea5e7827615090e5181ca445d9941e924e
      https://github.com/Perl/perl5/commit/08fb56ea5e7827615090e5181ca445d9941e924e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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

It won't be actually used until the next commit


  Commit: bb4d0aaf67cfd0e6d86457c6b0a68ce37dc54c49
      https://github.com/Perl/perl5/commit/bb4d0aaf67cfd0e6d86457c6b0a68ce37dc54c49
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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

This commit adds three checks:

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

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

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

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


  Commit: 7ffe44236e17cab94fd9ffe9828baaaa5da0b1f3
      https://github.com/Perl/perl5/commit/7ffe44236e17cab94fd9ffe9828baaaa5da0b1f3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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

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


  Commit: c219709278ecb2f27f6ca86c48fa4dfa23ae84cf
      https://github.com/Perl/perl5/commit/c219709278ecb2f27f6ca86c48fa4dfa23ae84cf
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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

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


  Commit: 4601f1f6aa3b567cbd49debf8f951e7e3cf23d78
      https://github.com/Perl/perl5/commit/4601f1f6aa3b567cbd49debf8f951e7e3cf23d78
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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

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


  Commit: 4f8b4300a477e07c29ba8754b897fefdd3c5edd0
      https://github.com/Perl/perl5/commit/4f8b4300a477e07c29ba8754b897fefdd3c5edd0
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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


  Commit: 99fe77ed7d3fc1933202a22f331fb61e3ebf267f
      https://github.com/Perl/perl5/commit/99fe77ed7d3fc1933202a22f331fb61e3ebf267f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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

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

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


  Commit: 0179b1fab86f34efbd5abb04c4a89a03a50670c1
      https://github.com/Perl/perl5/commit/0179b1fab86f34efbd5abb04c4a89a03a50670c1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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

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


  Commit: d7eff85193d19f600faa3f2c9d6856dcb78723fa
      https://github.com/Perl/perl5/commit/d7eff85193d19f600faa3f2c9d6856dcb78723fa
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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

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

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


  Commit: 60d604021be9d76cf3d61be5818b7fd4428550de
      https://github.com/Perl/perl5/commit/60d604021be9d76cf3d61be5818b7fd4428550de
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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

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

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


  Commit: 4ba2a7233c63d4ef0107157afb9bc06de04ec70a
      https://github.com/Perl/perl5/commit/4ba2a7233c63d4ef0107157afb9bc06de04ec70a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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


  Commit: 443aaf24a734f6f5e3714870e00bc346df8ff76a
      https://github.com/Perl/perl5/commit/443aaf24a734f6f5e3714870e00bc346df8ff76a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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


  Commit: 8d18de3b35c82ca5d8c93c8ae07fd0a41e9b8c81
      https://github.com/Perl/perl5/commit/8d18de3b35c82ca5d8c93c8ae07fd0a41e9b8c81
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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


  Commit: 29bc07dc2744ea5db97b318da54c1a92503d23c3
      https://github.com/Perl/perl5/commit/29bc07dc2744ea5db97b318da54c1a92503d23c3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: 2152b4502ec255a06e09244b31f643b27fd8be75
      https://github.com/Perl/perl5/commit/2152b4502ec255a06e09244b31f643b27fd8be75
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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


  Commit: e75c94567913eaa9ff4d88bd7ed4ff0bfc2ed7fc
      https://github.com/Perl/perl5/commit/e75c94567913eaa9ff4d88bd7ed4ff0bfc2ed7fc
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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


  Commit: 6157635595f58248a2ffeda64c0dbe3a45fc7aad
      https://github.com/Perl/perl5/commit/6157635595f58248a2ffeda64c0dbe3a45fc7aad
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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

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

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


  Commit: 81df9f0cbb15c4b95344cc29eb35c44d2d979218
      https://github.com/Perl/perl5/commit/81df9f0cbb15c4b95344cc29eb35c44d2d979218
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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

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


  Commit: 6740394c25b0a7fdcba04e9da8dd11ed6c3396db
      https://github.com/Perl/perl5/commit/6740394c25b0a7fdcba04e9da8dd11ed6c3396db
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M mg.c

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

Indent newly formed block from the previous commit.


  Commit: aa75aa5b37e82cd9edaf07ee20d86c936ac0465b
      https://github.com/Perl/perl5/commit/aa75aa5b37e82cd9edaf07ee20d86c936ac0465b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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

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

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


  Commit: 9b5334b90523adb3e30c043b42287cc68d537d39
      https://github.com/Perl/perl5/commit/9b5334b90523adb3e30c043b42287cc68d537d39
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: 2ba96125dbbd776a93f8be274925a892c2bc4879
      https://github.com/Perl/perl5/commit/2ba96125dbbd776a93f8be274925a892c2bc4879
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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


  Commit: c391bbfacf3ad47624510948abf612e85786ba54
      https://github.com/Perl/perl5/commit/c391bbfacf3ad47624510948abf612e85786ba54
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: 7d104e86afd17b06a41c16e5df532055559cd320
      https://github.com/Perl/perl5/commit/7d104e86afd17b06a41c16e5df532055559cd320
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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

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


  Commit: b1d11543b67496a7cdc3bb10536509e26840711f
      https://github.com/Perl/perl5/commit/b1d11543b67496a7cdc3bb10536509e26840711f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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

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

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

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


  Commit: 810e0b81849809b30f1f2c7325687e4dcf6f159d
      https://github.com/Perl/perl5/commit/810e0b81849809b30f1f2c7325687e4dcf6f159d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M intrpvar.h

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

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


  Commit: 753c6cc56c6b9edfe2811b45f1b2a78fb593880d
      https://github.com/Perl/perl5/commit/753c6cc56c6b9edfe2811b45f1b2a78fb593880d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c
    M perl.h

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

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

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


  Commit: 1898f201e59fee5d54124e090b5e639059fdd820
      https://github.com/Perl/perl5/commit/1898f201e59fee5d54124e090b5e639059fdd820
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: 6d642e25f36c3907cf2d707249ef890d466bc345
      https://github.com/Perl/perl5/commit/6d642e25f36c3907cf2d707249ef890d466bc345
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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

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


  Commit: 7e253ba708f5fdd51de205d572440fbce3dd96b7
      https://github.com/Perl/perl5/commit/7e253ba708f5fdd51de205d572440fbce3dd96b7
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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


  Commit: 6888d0a024d3f4a5ac5d7b2582d7fe4ec05e25c3
      https://github.com/Perl/perl5/commit/6888d0a024d3f4a5ac5d7b2582d7fe4ec05e25c3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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

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


  Commit: 75914ee21eec5d8e03a6d30f291866eb5ba0fc9b
      https://github.com/Perl/perl5/commit/75914ee21eec5d8e03a6d30f291866eb5ba0fc9b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: 5179b0ee087a3165a098a851e39d5f8427212cd9
      https://github.com/Perl/perl5/commit/5179b0ee087a3165a098a851e39d5f8427212cd9
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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

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

Explanatory comments are also added.


  Commit: 2b1a681236ea169e3747fb18d86a0b32515b68a3
      https://github.com/Perl/perl5/commit/2b1a681236ea169e3747fb18d86a0b32515b68a3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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


  Commit: 0bfb1b24cdacf71d67fcd8c94f5063394e3b7fd4
      https://github.com/Perl/perl5/commit/0bfb1b24cdacf71d67fcd8c94f5063394e3b7fd4
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: 2491262475525f4cbee536d82260fbd2582870a0
      https://github.com/Perl/perl5/commit/2491262475525f4cbee536d82260fbd2582870a0
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

This avoids setting this until needed.


  Commit: a6f3a84fafd2d4b32efb705f1bfa0f45a8556e32
      https://github.com/Perl/perl5/commit/a6f3a84fafd2d4b32efb705f1bfa0f45a8556e32
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: 4ef97610b4307caab92e77f2b9d99c94d58e430d
      https://github.com/Perl/perl5/commit/4ef97610b4307caab92e77f2b9d99c94d58e430d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: a8855aa775a23eacedc22268f5f092fbaeaad8ca
      https://github.com/Perl/perl5/commit/a8855aa775a23eacedc22268f5f092fbaeaad8ca
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M intrpvar.h
    M numeric.c

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

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


  Commit: f18b63136de65c96a01a120a0349159ad6ddc2a5
      https://github.com/Perl/perl5/commit/f18b63136de65c96a01a120a0349159ad6ddc2a5
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: bab511576141334ca9b280b1f078692e6a55c6a9
      https://github.com/Perl/perl5/commit/bab511576141334ca9b280b1f078692e6a55c6a9
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: d26744d845c18d1b8910ba711799b3dbd203bf7b
      https://github.com/Perl/perl5/commit/d26744d845c18d1b8910ba711799b3dbd203bf7b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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

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


  Commit: 30f61f2fd9d711ea5086f6a0c2f15e8e570411ce
      https://github.com/Perl/perl5/commit/30f61f2fd9d711ea5086f6a0c2f15e8e570411ce
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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


  Commit: 3c1a130719ed3aca920ff2017762681640981cdb
      https://github.com/Perl/perl5/commit/3c1a130719ed3aca920ff2017762681640981cdb
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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


  Commit: bceb63a6a4826cd4ec075de78c3d2f7677cd2944
      https://github.com/Perl/perl5/commit/bceb63a6a4826cd4ec075de78c3d2f7677cd2944
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: 060ca0fc08291519b24d49cd986837d9bf22ce21
      https://github.com/Perl/perl5/commit/060ca0fc08291519b24d49cd986837d9bf22ce21
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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


  Commit: 4cc7fc46686b14ee95b63ffb396befef8c211d9a
      https://github.com/Perl/perl5/commit/4cc7fc46686b14ee95b63ffb396befef8c211d9a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: 3397eae400b60b2beae20ece4a1bc1e94d6bb204
      https://github.com/Perl/perl5/commit/3397eae400b60b2beae20ece4a1bc1e94d6bb204
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: 5de9d3148517fe0713481f62df88b6fdee1caa26
      https://github.com/Perl/perl5/commit/5de9d3148517fe0713481f62df88b6fdee1caa26
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: 369cad459550f6a8a6f357c36c1393f403ac8b66
      https://github.com/Perl/perl5/commit/369cad459550f6a8a6f357c36c1393f403ac8b66
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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

This commit brings the locales into alignment if necessary


  Commit: 2221fad3d840551c172dcf223ab055f33782fe72
      https://github.com/Perl/perl5/commit/2221fad3d840551c172dcf223ab055f33782fe72
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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


  Commit: b6d23e5b0ef3562627b8b8330daaf4abda9c70ef
      https://github.com/Perl/perl5/commit/b6d23e5b0ef3562627b8b8330daaf4abda9c70ef
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M lib/locale.t

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


  Commit: 9f172d3c71dd3fa2102e7b0057735cd27cdbe780
      https://github.com/Perl/perl5/commit/9f172d3c71dd3fa2102e7b0057735cd27cdbe780
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: 67be5f823b6bba9677cadb489dbf2342cafc126e
      https://github.com/Perl/perl5/commit/67be5f823b6bba9677cadb489dbf2342cafc126e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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


  Commit: a9898606198f709b28e47612b4e18a226522a707
      https://github.com/Perl/perl5/commit/a9898606198f709b28e47612b4e18a226522a707
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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


  Commit: afe74a6ffd07581ce62ceddad979160a6eb8f904
      https://github.com/Perl/perl5/commit/afe74a6ffd07581ce62ceddad979160a6eb8f904
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

This prints out more information, better organized.

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


  Commit: bbe8bd7e8d874e733204de7adca173c5159abd54
      https://github.com/Perl/perl5/commit/bbe8bd7e8d874e733204de7adca173c5159abd54
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: 3b4b111625ace3f44beda30dea5cdcc46c5df918
      https://github.com/Perl/perl5/commit/3b4b111625ace3f44beda30dea5cdcc46c5df918
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

Hex is the more familiar form


  Commit: 1426d3a3629889b086c8d08acfb13449ff552859
      https://github.com/Perl/perl5/commit/1426d3a3629889b086c8d08acfb13449ff552859
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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


  Commit: eba73f9fe133c36268b4b37c6b79c1b67ff2f820
      https://github.com/Perl/perl5/commit/eba73f9fe133c36268b4b37c6b79c1b67ff2f820
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M perl.h

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

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


  Commit: 3f3a5e3f85480011e75687fcaa51a846addad3dd
      https://github.com/Perl/perl5/commit/3f3a5e3f85480011e75687fcaa51a846addad3dd
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M perl.h

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

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


  Commit: 604077950897f855a0437af515dbbbf263dcb822
      https://github.com/Perl/perl5/commit/604077950897f855a0437af515dbbbf263dcb822
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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


  Commit: 0dfd12167cd042636a09061d1bfc1399ecd65b1c
      https://github.com/Perl/perl5/commit/0dfd12167cd042636a09061d1bfc1399ecd65b1c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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

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


  Commit: 9cb2b747cb2ff625453e546dabef83bd7f5d0683
      https://github.com/Perl/perl5/commit/9cb2b747cb2ff625453e546dabef83bd7f5d0683
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M perl.h

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

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

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


  Commit: d2c798f505796a3fab9dba04246a1d74cd0ba3ab
      https://github.com/Perl/perl5/commit/d2c798f505796a3fab9dba04246a1d74cd0ba3ab
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M perl.h

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

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


  Commit: 6abd9891f5ee3d56abfe4429e0b844942dec063d
      https://github.com/Perl/perl5/commit/6abd9891f5ee3d56abfe4429e0b844942dec063d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c
    M perl.h

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

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


  Commit: 494296367339862f39f279fcfd28dfb18adbcd98
      https://github.com/Perl/perl5/commit/494296367339862f39f279fcfd28dfb18adbcd98
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c
    M perl.h

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

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


  Commit: acf46d1103d8d1ada437621c5bd07ee877861a3c
      https://github.com/Perl/perl5/commit/acf46d1103d8d1ada437621c5bd07ee877861a3c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c
    M perl.h

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

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

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

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

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


  Commit: 92e43f4a7ca5b417b1eebb7fb3483ad9135e59fc
      https://github.com/Perl/perl5/commit/92e43f4a7ca5b417b1eebb7fb3483ad9135e59fc
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M perl.h

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

This simplifies slightly, and will allow further simplification


  Commit: d77d69e89f7abe15679e6c61b2dcb7d44b83a2a7
      https://github.com/Perl/perl5/commit/d77d69e89f7abe15679e6c61b2dcb7d44b83a2a7
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M perl.h

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

To enable future simplifications


  Commit: b51f323788d048a740052adaf50f08b1dfdc9541
      https://github.com/Perl/perl5/commit/b51f323788d048a740052adaf50f08b1dfdc9541
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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


  Commit: 0e61e6983c09ed0e7a8f7861a3935c96e15f0660
      https://github.com/Perl/perl5/commit/0e61e6983c09ed0e7a8f7861a3935c96e15f0660
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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

All it does is:

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

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


  Commit: 19fa64f96e70043eb5303351f7544946bdce85d1
      https://github.com/Perl/perl5/commit/19fa64f96e70043eb5303351f7544946bdce85d1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M perl.h

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

Previous commits have left this empty except for comments.


  Commit: 31c5370de247cfcaa7e8e60627ea3c0806f67e06
      https://github.com/Perl/perl5/commit/31c5370de247cfcaa7e8e60627ea3c0806f67e06
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M pp.c

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


  Commit: 83d0073570175a1f2bbc66f7d1cf7bee33e2918a
      https://github.com/Perl/perl5/commit/83d0073570175a1f2bbc66f7d1cf7bee33e2918a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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

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

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

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


  Commit: 7d42c9c0cc5d1da5441d889fc0d1b0810a62e28f
      https://github.com/Perl/perl5/commit/7d42c9c0cc5d1da5441d889fc0d1b0810a62e28f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M inline.h
    M locale.c

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

Under verbose debugging, this shows non-standard folds


  Commit: cda73956b3dd484cd2d3e4e6e9da087b89b3fb57
      https://github.com/Perl/perl5/commit/cda73956b3dd484cd2d3e4e6e9da087b89b3fb57
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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


  Commit: 4ed012231a4e6ab858ba23ce68e70838c90ad1ec
      https://github.com/Perl/perl5/commit/4ed012231a4e6ab858ba23ce68e70838c90ad1ec
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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


  Commit: 7243a8655c0334707724eb20b9c9b41fc5e99130
      https://github.com/Perl/perl5/commit/7243a8655c0334707724eb20b9c9b41fc5e99130
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M perl.h

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

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


  Commit: 7e4daf6847c10c89f7349204154e9541a607bad7
      https://github.com/Perl/perl5/commit/7e4daf6847c10c89f7349204154e9541a607bad7
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M perl.h
    M time64.c

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

These are subsumed by gwENVr_LOCALEr_LOCK created in the previous
commit.


  Commit: 5f411ca9ec2538ec4af5b4afc6a7d4eb7c176edd
      https://github.com/Perl/perl5/commit/5f411ca9ec2538ec4af5b4afc6a7d4eb7c176edd
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

The old name was confusing.


  Commit: d5b468893f559df5e632e4cc9b9dd39be79783de
      https://github.com/Perl/perl5/commit/d5b468893f559df5e632e4cc9b9dd39be79783de
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M perl.h

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

So they are closer to related statements


  Commit: f1f97c2ba2d2d361436ec7c60d41072d1d36999f
      https://github.com/Perl/perl5/commit/f1f97c2ba2d2d361436ec7c60d41072d1d36999f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M perl.h
    M util.c

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

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

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

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


  Commit: e93762d3d9a75b6c3f0b988481d7f306b93b06cf
      https://github.com/Perl/perl5/commit/e93762d3d9a75b6c3f0b988481d7f306b93b06cf
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M time64.c

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

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


  Commit: 13d6f8271d6bf28d1af35abf54e536b96c71581e
      https://github.com/Perl/perl5/commit/13d6f8271d6bf28d1af35abf54e536b96c71581e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M pp_sys.c

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


  Commit: 9f962ee128921598549fed988c20799c5b1c361c
      https://github.com/Perl/perl5/commit/9f962ee128921598549fed988c20799c5b1c361c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M win32/win32.c

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

These could have races.


  Commit: 70f33d6e36fc930ac6398ec2058a52ffb2a139d3
      https://github.com/Perl/perl5/commit/70f33d6e36fc930ac6398ec2058a52ffb2a139d3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M ext/POSIX/POSIX.xs

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


  Commit: c43224c5136241ead26f8e7fd45f56ee46aa22b1
      https://github.com/Perl/perl5/commit/c43224c5136241ead26f8e7fd45f56ee46aa22b1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M util.c

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

per the Posix standard


  Commit: 60dbe4b6728d7275f280e17fb0734fe46cf6c79f
      https://github.com/Perl/perl5/commit/60dbe4b6728d7275f280e17fb0734fe46cf6c79f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M util.c

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


  Commit: 1ff8db64a7df521a8decb047c12588fe73d75958
      https://github.com/Perl/perl5/commit/1ff8db64a7df521a8decb047c12588fe73d75958
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M os2/os2.c

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

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


  Commit: 6acde2d48bfebae0c98db9ba2c97beb8e3e7906e
      https://github.com/Perl/perl5/commit/6acde2d48bfebae0c98db9ba2c97beb8e3e7906e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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


  Commit: b7663daec62dccb9310728b7a302501209addb80
      https://github.com/Perl/perl5/commit/b7663daec62dccb9310728b7a302501209addb80
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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


  Commit: c2ca878401c78a3f356f1cf486b7fe2ed761bbb3
      https://github.com/Perl/perl5/commit/c2ca878401c78a3f356f1cf486b7fe2ed761bbb3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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

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


  Commit: aca1942ccb691f50802df73c716d728cc7427084
      https://github.com/Perl/perl5/commit/aca1942ccb691f50802df73c716d728cc7427084
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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

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


  Commit: 2917b588c061459d122c298472d38179e95e9452
      https://github.com/Perl/perl5/commit/2917b588c061459d122c298472d38179e95e9452
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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

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


  Commit: 6371779731625e4592c56ad426b3c0ecdf526436
      https://github.com/Perl/perl5/commit/6371779731625e4592c56ad426b3c0ecdf526436
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M pod/perlhacktips.pod

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


  Commit: 437592ceb1a17540a52f81c072c391f2bd77756d
      https://github.com/Perl/perl5/commit/437592ceb1a17540a52f81c072c391f2bd77756d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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


  Commit: 0a1388f7112def4bab0cab75025923c9c9c3f170
      https://github.com/Perl/perl5/commit/0a1388f7112def4bab0cab75025923c9c9c3f170
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M hints/freebsd.sh

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


  Commit: ccfc67dfadb09f74d436a32ac728ca31b1344b62
      https://github.com/Perl/perl5/commit/ccfc67dfadb09f74d436a32ac728ca31b1344b62
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M thread.h

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


  Commit: 94fb069ff42e57d58493faa6b8064a334bf296ee
      https://github.com/Perl/perl5/commit/94fb069ff42e57d58493faa6b8064a334bf296ee
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M thread.h

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


  Commit: 356b8be67232cc98507200d291bcbb9985a55d96
      https://github.com/Perl/perl5/commit/356b8be67232cc98507200d291bcbb9985a55d96
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M perl.h

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


  Commit: 24a35d7978fbb6d42f6a8ce334031a7f71299ba4
      https://github.com/Perl/perl5/commit/24a35d7978fbb6d42f6a8ce334031a7f71299ba4
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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


  Commit: ca11c1d26c2fc4629936065bce5530db29b6b571
      https://github.com/Perl/perl5/commit/ca11c1d26c2fc4629936065bce5530db29b6b571
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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


  Commit: 112a4c611e316ff1e269f0ff7c23115c5cea3bf0
      https://github.com/Perl/perl5/commit/112a4c611e316ff1e269f0ff7c23115c5cea3bf0
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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


  Commit: f3073960b5698f55e4504352c574af6384e0788f
      https://github.com/Perl/perl5/commit/f3073960b5698f55e4504352c574af6384e0788f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M t/run/locale.t

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

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


  Commit: 6bfbafcf829f56f2a650c0a71dea3b0dd4acf172
      https://github.com/Perl/perl5/commit/6bfbafcf829f56f2a650c0a71dea3b0dd4acf172
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M t/run/locale.t

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


  Commit: 52bb5d606ec944c43015de0c5ceb5e10661b9559
      https://github.com/Perl/perl5/commit/52bb5d606ec944c43015de0c5ceb5e10661b9559
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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

Remove some blank lines that don't contribute to readability


  Commit: 9865fc767cfbde11d841f7042db68cf40d25dd1b
      https://github.com/Perl/perl5/commit/9865fc767cfbde11d841f7042db68cf40d25dd1b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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


  Commit: c189d89c36f34f0bc873ff58b65dbaa67adcf6a4
      https://github.com/Perl/perl5/commit/c189d89c36f34f0bc873ff58b65dbaa67adcf6a4
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

This code should no longer be necessary; but verify


  Commit: e739fd25e689647b04f8b77739250a33b8c8db91
      https://github.com/Perl/perl5/commit/e739fd25e689647b04f8b77739250a33b8c8db91
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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


  Commit: a8d307d15287888c48f8feb57741f21452234b83
      https://github.com/Perl/perl5/commit/a8d307d15287888c48f8feb57741f21452234b83
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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


  Commit: fcb10a724890aa6c39b8c5d275c07a3b76823420
      https://github.com/Perl/perl5/commit/fcb10a724890aa6c39b8c5d275c07a3b76823420
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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


  Commit: 94699c6f59948591d0af4cb2efb3070aced3278e
      https://github.com/Perl/perl5/commit/94699c6f59948591d0af4cb2efb3070aced3278e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

This reverts commit cd1fd76eac05b9ca866bb6f1dae6151767aa3d76.


  Commit: 4da7d6225277b5860ac11f0773766dded48e4dbd
      https://github.com/Perl/perl5/commit/4da7d6225277b5860ac11f0773766dded48e4dbd
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M lib/locale.t

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


  Commit: 901f55627e21e5dc4db9623d302d1a3762644090
      https://github.com/Perl/perl5/commit/901f55627e21e5dc4db9623d302d1a3762644090
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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


  Commit: a5e4fd60198a1671e987289e0dc495c57ab52c9c
      https://github.com/Perl/perl5/commit/a5e4fd60198a1671e987289e0dc495c57ab52c9c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M embed.fnc
    M proto.h

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


  Commit: c75b7d5466a7f0b4f38ad6b283e6792b36d68e13
      https://github.com/Perl/perl5/commit/c75b7d5466a7f0b4f38ad6b283e6792b36d68e13
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M handy.h

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

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


  Commit: 0e9e0cd58f4a19a3069620673cad5d8ce88a68fc
      https://github.com/Perl/perl5/commit/0e9e0cd58f4a19a3069620673cad5d8ce88a68fc
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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


  Commit: 08c4ca13ef5df04d8a86a1dec885a28429974e2d
      https://github.com/Perl/perl5/commit/08c4ca13ef5df04d8a86a1dec885a28429974e2d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M perl.h

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


  Commit: f25a5a5a96e80ed9ad3dbe3fc57b095b97100585
      https://github.com/Perl/perl5/commit/f25a5a5a96e80ed9ad3dbe3fc57b095b97100585
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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


  Commit: 29e46a01f762f55d3bc1fc1fc3d4090717215823
      https://github.com/Perl/perl5/commit/29e46a01f762f55d3bc1fc1fc3d4090717215823
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M intrpvar.h

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


  Commit: c0fce38959650fdd0f38beffe3b5d4b862c946e4
      https://github.com/Perl/perl5/commit/c0fce38959650fdd0f38beffe3b5d4b862c946e4
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M intrpvar.h
    M locale.c

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

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

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

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

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

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

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


  Commit: cd2751d6d50edc531fa7096805a614aa0cf5f46c
      https://github.com/Perl/perl5/commit/cd2751d6d50edc531fa7096805a614aa0cf5f46c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: 77fbb2fb0fbfceadd721ab730b5d8e63cd85fdf1
      https://github.com/Perl/perl5/commit/77fbb2fb0fbfceadd721ab730b5d8e63cd85fdf1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c
    M util.c

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

We can assume it exists


  Commit: c0b19b0f68c837f669f252eec2aa38cf8fbfde71
      https://github.com/Perl/perl5/commit/c0b19b0f68c837f669f252eec2aa38cf8fbfde71
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M perl.h
    M sv.c

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

Leading underscores in names are undefined


  Commit: 6175b0a17fbb39e24d5bdb541fc4506308434094
      https://github.com/Perl/perl5/commit/6175b0a17fbb39e24d5bdb541fc4506308434094
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M patchlevel.h

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


  Commit: 041f3e604d14c314c706eb96f325ae1214dba33b
      https://github.com/Perl/perl5/commit/041f3e604d14c314c706eb96f325ae1214dba33b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M sv.c

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


  Commit: bca4486f4097429fd14166bf87e4112236f4a83f
      https://github.com/Perl/perl5/commit/bca4486f4097429fd14166bf87e4112236f4a83f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M makedef.pl

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

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


  Commit: d28ffe17ef22506fd4c3d2acdb7d4ce7c1b3b641
      https://github.com/Perl/perl5/commit/d28ffe17ef22506fd4c3d2acdb7d4ce7c1b3b641
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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


  Commit: 321cc8008c018c50ac5ea02ffeb0b07304510adc
      https://github.com/Perl/perl5/commit/321cc8008c018c50ac5ea02ffeb0b07304510adc
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

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

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


  Commit: eda91e760093ba11679f3561fcd51dd333d7b174
      https://github.com/Perl/perl5/commit/eda91e760093ba11679f3561fcd51dd333d7b174
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: ffe8f7bca7b6f3aaa05268159a1432b93e65beaf
      https://github.com/Perl/perl5/commit/ffe8f7bca7b6f3aaa05268159a1432b93e65beaf
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: ec56138916d14e09ea3c328da56a447d2ae36bc0
      https://github.com/Perl/perl5/commit/ec56138916d14e09ea3c328da56a447d2ae36bc0
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M locale.c

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

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


  Commit: 8ebdb60eacae58f5d86b978ffc63d3f6cbeb7571
      https://github.com/Perl/perl5/commit/8ebdb60eacae58f5d86b978ffc63d3f6cbeb7571
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M t/loc_tools.pl

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

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


  Commit: b1adfd935287850f80a2a99355d945493284676a
      https://github.com/Perl/perl5/commit/b1adfd935287850f80a2a99355d945493284676a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M cygwin/cygwin.c

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


  Commit: c0458fd8a95d6898ea09841ce3c7faccca7f03ba
      https://github.com/Perl/perl5/commit/c0458fd8a95d6898ea09841ce3c7faccca7f03ba
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M patchlevel.h

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


  Commit: 6692e66f3cbeb13b72cd9d6802b7f09be29197d2
      https://github.com/Perl/perl5/commit/6692e66f3cbeb13b72cd9d6802b7f09be29197d2
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M cygwin/cygwin.c

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


  Commit: 01f4dcc7a08d43c626b0dbddcdf1daf4c68acd60
      https://github.com/Perl/perl5/commit/01f4dcc7a08d43c626b0dbddcdf1daf4c68acd60
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M cygwin/cygwin.c

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

This reverts commit 24fbf2ccd8777c4af31eb9f8038d4cff7073b0c4.


  Commit: 42e3af4542f7b0ac320369a5613b6b3c367fa0dd
      https://github.com/Perl/perl5/commit/42e3af4542f7b0ac320369a5613b6b3c367fa0dd
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M t/loc_tools.pl

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

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


  Commit: 0c9b2faf36e21a751f8e2ecaa9f900ca97e5ce56
      https://github.com/Perl/perl5/commit/0c9b2faf36e21a751f8e2ecaa9f900ca97e5ce56
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M t/loc_tools.pl

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

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


  Commit: 4064c22a0dd4c2d08eec00db4f58e1ab9527cff6
      https://github.com/Perl/perl5/commit/4064c22a0dd4c2d08eec00db4f58e1ab9527cff6
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M t/loc_tools.pl

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

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


  Commit: 6348d6bbe39d41a6565137691f50cc6de35eb5ce
      https://github.com/Perl/perl5/commit/6348d6bbe39d41a6565137691f50cc6de35eb5ce
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M t/loc_tools.pl

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

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


  Commit: 0c08d9b0a62d38a01c7c03e960fb12c53e905dcf
      https://github.com/Perl/perl5/commit/0c08d9b0a62d38a01c7c03e960fb12c53e905dcf
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M t/loc_tools.pl

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

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

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


  Commit: 30c00621f955876d5815d5f1c18b2042d61c90ec
      https://github.com/Perl/perl5/commit/30c00621f955876d5815d5f1c18b2042d61c90ec
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

  Log Message:
  -----------
  XXXdelta Add locale unsupported test

Perl only suppots multi-byte locales that are UTF-8.  It turns out that
the others are worse than I thought, and if someone switches to one, the
program can crash.

This commit generates a default-on diagnostic when switching into such a
locale, and doesn't take the steps to add its data to the LC_CTYPE
database.

The check has been done in various releases for some time, but this
elevates its severity and tries to avoid actually using its data.

The previous commit caused the test suite to view such a locale as
unacceptable.


  Commit: f719248b0ee65175d27a5aeedb8d025007ee57e4
      https://github.com/Perl/perl5/commit/f719248b0ee65175d27a5aeedb8d025007ee57e4
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M t/loc_tools.pl

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


  Commit: d32da00df315456eb5bea9bed9d885d769913f6d
      https://github.com/Perl/perl5/commit/d32da00df315456eb5bea9bed9d885d769913f6d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M t/loc_tools.pl

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


  Commit: 39757664b769a6faf640aff6d5f828f9fc9d5d63
      https://github.com/Perl/perl5/commit/39757664b769a6faf640aff6d5f828f9fc9d5d63
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M t/loc_tools.pl

  Log Message:
  -----------
  t/loc_tools.pl: Swap lines

It doesn't matter much, but some warnings might be output by doing the
'use locale' before turning off warnings.


  Commit: 41b626cfbfce505a7e99e8468d3ecd7cefc4c717
      https://github.com/Perl/perl5/commit/41b626cfbfce505a7e99e8468d3ecd7cefc4c717
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M lib/locale_threads.t

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


  Commit: 0bb285fd76b864dd422a467035f0e15ae39e92ad
      https://github.com/Perl/perl5/commit/0bb285fd76b864dd422a467035f0e15ae39e92ad
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M lib/locale_threads.t

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


  Commit: d406470ee554a7c7316bc7e615d44693e4fce0fa
      https://github.com/Perl/perl5/commit/d406470ee554a7c7316bc7e615d44693e4fce0fa
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M intrpvar.h

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


  Commit: 171f5cc9b9ff88a1572b9d92598d4ed900acf0fc
      https://github.com/Perl/perl5/commit/171f5cc9b9ff88a1572b9d92598d4ed900acf0fc
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M intrpvar.h

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


  Commit: a6b10ddd2814e024e06551d4ab2ee019a792fdb7
      https://github.com/Perl/perl5/commit/a6b10ddd2814e024e06551d4ab2ee019a792fdb7
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

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

  Log Message:
  -----------
  XXX finish msg,thread_init Revamp sync_locale, switch_to_global_locale

f


  Commit: 46e7abb36b9b8a599b1ac46912fd7ee55f47239a
      https://github.com/Perl/perl5/commit/46e7abb36b9b8a599b1ac46912fd7ee55f47239a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M sv.c

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

These variables are already cloned when creating a thread


  Commit: 4d16fef1ec997feac4f8a4e1c030d5be3c3675ef
      https://github.com/Perl/perl5/commit/4d16fef1ec997feac4f8a4e1c030d5be3c3675ef
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M sv.c

  Log Message:
  -----------
  sv.c: Rmv redundant clause

If threaded locales are being used, basic locales are too.  No need to
check both


  Commit: 372b57a5926447085445d13986e3c5f9d5d4e86b
      https://github.com/Perl/perl5/commit/372b57a5926447085445d13986e3c5f9d5d4e86b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M handy.h
    M lib/locale.t

  Log Message:
  -----------
  Fix isspace() handling on AIX

This box incorrectly thinks the NBSP is a graphic on many locales.
Overriding that makes these locales behave like proper POSIX ones.


  Commit: 87e7d22dfd16694b3be75e9cbfb80f5e5def7e49
      https://github.com/Perl/perl5/commit/87e7d22dfd16694b3be75e9cbfb80f5e5def7e49
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M sv.c

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

Replace leading tabs with spaces


  Commit: 751c00f731e65ee8d075e28422f41de0675ede2e
      https://github.com/Perl/perl5/commit/751c00f731e65ee8d075e28422f41de0675ede2e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M hints/cygwin.sh

  Log Message:
  -----------
  XXX check if really necessary after everything: Don't use POSIX 2008 locale

This has been found to be buggy leading to dying inside the newlocale()
in S_emulate_setlocale_i()


  Commit: e21786e0ee4f046eaacaaf65361f2346945cb3f0
      https://github.com/Perl/perl5/commit/e21786e0ee4f046eaacaaf65361f2346945cb3f0
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M lib/locale.t

  Log Message:
  -----------
  lib/locale.t: Use I18N::Langinfo, not POSIX::localeconv()

Now that Langinfo is ported to every box, it requires less work than
localeconv(), and offers more choices.  This commit changes to use it,
and for more info when debugging, gets some additional info from it.


  Commit: f7a6fb11980499263262c221c64d8a648ed7c6be
      https://github.com/Perl/perl5/commit/f7a6fb11980499263262c221c64d8a648ed7c6be
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M handy.h

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


  Commit: dc8c7f9931aab2ae57f25b5ab621e66327b2aafb
      https://github.com/Perl/perl5/commit/dc8c7f9931aab2ae57f25b5ab621e66327b2aafb
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  perl.h: Avoid unnecessary calls to set_numeric_standard()

Prior to this commit, set_numeric_standard() was called unconditionally,
and it could decide if it should do anything or not.  But the variable
that indicates this is available to the caller, so by testing it, it can
avoid the call, which is most likely the case.


  Commit: fa96e2264d4899e10079b72af12d7f0ca53da860
      https://github.com/Perl/perl5/commit/fa96e2264d4899e10079b72af12d7f0ca53da860
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M perl.h

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


  Commit: a2f86b9869478111eb2e57ce231c88bc2d45399e
      https://github.com/Perl/perl5/commit/a2f86b9869478111eb2e57ce231c88bc2d45399e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  XXX Use internal querylocale on Linux

XXX Need to bisect to see where this goes bad
XXX Is effectively a no-op due to other debugging code


  Commit: 580f2a82d38f056bbb833cf3ce35787495db3a3f
      https://github.com/Perl/perl5/commit/580f2a82d38f056bbb833cf3ce35787495db3a3f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M cpan/Time-Piece/Piece.xs
    M dist/ExtUtils-ParseXS/lib/perlxs.pod
    M handy.h
    M iperlsys.h
    M locale.c
    M perl.h
    M pod/perllocale.pod
    M regen/reentr.pl
    M regexec.c
    M util.c

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


  Commit: ee0dde8da13fdb3ab6640ba0fc258da653dd8ee7
      https://github.com/Perl/perl5/commit/ee0dde8da13fdb3ab6640ba0fc258da653dd8ee7
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M embedvar.h
    M ext/I18N-Langinfo/t/Langinfo.t
    M ext/POSIX/POSIX.xs
    M intrpvar.h
    M lib/locale.t
    M lib/locale_threads.t
    M locale.c
    M makedef.pl
    M mg.c
    M perl.c
    M perl.h
    M proto.h
    M regexec.c
    M sv.c
    M t/loc_tools.pl
    M t/run/locale.t

  Log Message:
  -----------
  57


  Commit: 7b346467c71ddd612c228609c573afab4b94d85c
      https://github.com/Perl/perl5/commit/7b346467c71ddd612c228609c573afab4b94d85c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M lib/locale_threads.t

  Log Message:
  -----------
  58


Compare: https://github.com/Perl/perl5/compare/ec44652b4a6e...7b346467c71d



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