Nathan Bossart <nathandbossart(at)gmail(dot)com> writes:
> Adding PG_USED_FOR_ASSERTS_ONLY (as in the attached patch) seems sufficient
> to suppress this warning. On newer versions, this variable is used for
> more than assertions, so the patch only needs to be applied to v13. Since
> this is trivial, I plan to commit it shortly.
LGTM
regards, tom lane