Thread: pgsql: plperl: windows: Use Perl_setlocale on 5.28+, fixing compile fai

plperl: windows: Use Perl_setlocale on 5.28+, fixing compile failure.

For older versions we need our own copy of perl's setlocale(), because it was
not exposed (why we need the setlocale in the first place is explained in
plperl_init_interp) . The copy stopped working in 5.28, as some of the used
macros are not public anymore.  But Perl_setlocale is available in 5.28, so
use that.

Author: Victor Wagner <vitus@wagner.pp.ru>
Reviewed-By: Dagfinn Ilmari Mannsåker <ilmari@ilmari.org>
Discussion: https://postgr.es/m/20200501134711.08750c5f@antares.wagner.home
Backpatch: all versions

Branch
------
REL_13_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/0dc0fe7b6c4583955f643c3ba7ea625767f300bb

Modified Files
--------------
src/pl/plperl/plperl.c | 13 ++++++++-----
1 file changed, 8 insertions(+), 5 deletions(-)