The 4.next branch is now expecting the pcre2 library, replacing the original
pcre library; the latter having gone end-of-life.
Buildfarm animal maintainers, please check that the required packages
are installed to support this. The buildfarm status page entry for
your animal will go red if not.
https://buildfarm.exim.org/cgi-bin/show_status.pl
--
Cheers,
Jeremy