Add definition of OPTIMIZE to .ph files, if optimizing is used

XSLoader requires DynaLoader

Fix dumping a hash entry of PL_strtab type
Fix an arithmetic left shift of a minimal integer value (GH#18639)

Protect locale tests from LANGUAGE environment variable
Prevent the number of buckets in a hash from getting too large
Fix a memory leak when compiling a regular expression (GH#18604)

Fix a crash in optimizing split() (GH#18232)
Make accessing environment by DynaLoader thread-safe
Use duplocale() if available
Fix fc() in Turkish locale
Fix croaking on "my $_" when "use utf8" is in effect (GH#18449)
Fix PERL_UNUSED_ARG() definition in XSUB.h
Add missing entries to perldiag (GH#18276)

5.32.1 bump (see <https://metacpan.org/pod/release/SHAY/perl-5.32.1/pod/perldelta.pod>

Run-require perl(Encode) by perl-libs

Fix an undefined behavior in Perl_custom_op_get_field()
Fix Config variable names in in t/op tests
Fix fetching a magic on the stacked file test operators

Run-require complete perl by perl-CPAN
Fix ownership of /usr/share/perl5/{ExtUtils,File,Module,Text,Time} directories
Fix a buffer overflow when compiling a regular expression with a bracketed
Fix a mismatch with the recursive subpatterns (GH#18096)
Update perl-IO-Zlib metadata
Fix sv_collxfrm macro to respect locale
Fix an iterator signedness in handling an mro exception (GH#18155)
Fix a code flow in Perl_sv_inc_nomg()

Fix inheritance resolution of lexial objects in a debugger (GH#17661)
Fix a misoptimization when assignig a list in a list context (GH#17816)
Fix handling left-hand-side undef when assigning a list (GH#16685)
Fix a memory leak when compiling a long regular expression (GH#18054)
Fix handling exceptions in a global destruction (GH#18063)
Fix sorting with a block that calls return (GH#18081)

Re-enable LTO

Fix an IO::Handle spurious error reported for regular file handles (GH#18019)

Do not use C compiler reserved identifiers
Fix SvUV_nomg() macro definition
Fix SvTRUE() documentation
Fix ext/XS-APItest/t/utf8_warn_base.pl tests
Fix IO::Handle::error() to report write errors (GH#6799)
Fix a link to Unicode Technical Standard #18 (GH#17881)
Fix setting a non-blocking mode in IO::Socket::UNIX (GH#17787)
Fix running actions after stepping in a debugger (GH#17901)
Fix a buffer size for asctime_r() and ctime_r() functions
Prevent from an integer overflow in RenewDouble() macro
Fix a buffer overread in when reallocating formats (GH#17844)
Fix a number of arguments passed to a BOOT XS subroutine (GH#17755)

Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild

Disable LTO