Re,

> ...

> This great global parameter setting, and API IMO, has been withdrawn in Guile-2.2,
> which hard codes duplicate handlers 'as in the manual'.

This above sentence is ambiguous/incomplete, here is more accurate 'version',
hopefully:

	This great global parameter setting, and API IMO, has been withdrawn in
	Guile-2.2. In 2.2, when a module does not declare its duplicate handlers
	set, using the #:duplicates module directive, then Guile 2.2 won't
	read the global parameter setting anymore, as it did in 2.0, it will assume
	instead that the user wants the default duplicate handlers set, as
	specified in the manual.

David.