[Chicken-users] require-extension vs require-library/import

[Jim Ursetto]

The manual implies that require-extension is the same as a
require-library followed by an import, but this is not so.
require-extension does not work for a source module that has no
corresponding import file on disk.

#;1> (require-extension tadm)
Error: (import) during expansion of (import ...) - cannot import from
undefined module: tadm

#;1> (require-library tadm)
; loading ./tadm.scm ...
; loading /usr/local/chicken-4/lib/chicken/4/scheme.import.so ...
; loading /usr/local/chicken-4/lib/chicken/4/chicken.import.so ...
#;2> (import tadm)
#;3>