Kevin Grittner <kgrittn(at)gmail(dot)com> writes:
> No joy with that shot in the dark.
> Should I add PGDLLEXPORT to the declaration of
> old_snapshot_threshold. That doesn't seem to be documented
> anywhere, or have any useful comments; but it looks like it *might*
> be the arcane incantation needed here.
PGDLLIMPORT is what's needed on any backend global variable that's to
be referenced by extensions. I already pushed a fix before noticing
this thread.
regards, tom lane