Buildworld stops with ld: error: undefined symbol: AcpiWarning on -current

From: bob prohaska <fbsd_at_www.zefox.net>
Date: Tue, 05 Apr 2022 15:36:18 UTC
A Pi3 running -current is stopping with 
ld: error: undefined symbol: AcpiWarning
during buildworld. The sources are up-to-
date as of a few minutes ago. A series of
related "Acpi..." errors follow.

The build command line is 
make -j2 -DWITH_META_MODE  buildworld > buildworld.log

Thanks for reading,

bob prohaska