File: main.scm
-----

(module main
 *
 (import chicken scheme)
 (use module-a)

 (define (bar)
   (print "bar " foo)))

(import main)
(bar)


File: module_a.scm
-----

(module module-a
 *
 (import chicken scheme)

 (define foo 1))


Error: (import) during expansion of (import ...) - cannot import from undefined module: module-a