FYI,
https://debbugs.gnu.org/cgi/bugreport.cgi?bug=57394

Lars at gnu says it is fixed in emacs 29
The bug's web page says, more specifically, "bug marked as fixed in 
version 29.1"

... I can't find emacs 29.1; my 'git pull' still says 29.0 and I don't 
see any 29.1 branches available.
I have not been able to test and verify the fix.

Thoughts?

    Daniel Ortmann<daniel.ortmann@oracle.com>  writes:

>     Error: error ("Eager macro-expansion failure: (void-function
>     byte-compile-warn-obsolete)")
>     debug-early-backtrace()
>     debug-early(error (error "Eager macro-expansion failure:
>     (void-function byte-compile-warn-obsolete)"))

    This should now be fixed in Emacs 29.