Only define NO_THREAD_SAFE_LOCALE for MSVC plperl when required Latest versions of Strawberry Perl define USE_THREAD_SAFE_LOCALE, and we therefore get a handshake error when building against such instances. The solution is to perform a test to see if USE_THREAD_SAFE_LOCALE is defined and only define NO_THREAD_SAFE_LOCALE if it isn't.
Backpatch the meson.build fix back to release 16 and apply the same logic to Mkvcbuild.pm in releases 12 through 16. Original report of the issue from Muralikrishna Bandaru. Branch ------ REL_16_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/0a0db46313749bb379db65eb987af6bf29470300 Modified Files -------------- meson.build | 5 ++++- src/tools/msvc/Mkvcbuild.pm | 4 +++- 2 files changed, 7 insertions(+), 2 deletions(-)