Bruce Momjian <bruce(at)momjian(dot)us> writes:
> Can someone tell me how you saw that warning in the build farm? I don't
> see it in with a make check or a build of the docs.
Yeah, for some reason it only shows up when building PDFs.
https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=alabio&dt=2023-11-25%2000%3A02%3A10
regards, tom lane