Fix binary mismatch for MSVC plperl vs gcc built perl libs

adunstan · adunstan · commit ccc59a83cd97 · 2022-11-27T09:03:22.000-05:00
When loading plperl built against Strawberry perl or the msys2 ucrt perl that have been built with gcc, a binary mismatch has been encountered which looks like this: loadable library and perl binaries are mismatched (got handshake key 0000000012800080, needed 0000000012900080) To cure this we bring the handshake keys into sync by adding NO_THREAD_SAFE_LOCALE to the defines used to build plperl. Discussion: https://postgr.es/m/20211005004334.tgjmro4kuachwiuc@alap3.anarazel.de Discussion: https://postgr.es/m/c2da86a0-2906-744c-923d-16da6047875e@dunslane.net Backpatch to all live branches.
diff --git a/src/tools/msvc/Mkvcbuild.pm b/src/tools/msvc/Mkvcbuild.pm
@@ -585,6 +585,9 @@ sub mkvcbuild
 
 		# hack to prevent duplicate definitions of uid_t/gid_t
 		push(@perl_embed_ccflags, 'PLPERL_HAVE_UID_GID');
+		# prevent binary mismatch between MSVC built plperl and
+		# Strawberry or msys ucrt perl libraries
+		push(@perl_embed_ccflags, 'NO_THREAD_SAFE_LOCALE');
 
 		# Windows offers several 32-bit ABIs.  Perl is sensitive to
 		# sizeof(time_t), one of the ABI dimensions.  To get 32-bit time_t,
