$ csc -J -s m.scm && csc -J -s m2.scm && csc -I . poi.scm && ./poi

Error: unbound variable: bar

	Call history:

	poi.scm:2: bar	  	<--
;;;;;;;;;;;;;;;;;;;;;;;;;;

exporting bar from m2 manually causes a compilation error

Warning: exported identifier of module `m2' has not been defined: bar

Error: module unresolved: m2

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;





File: m2.import.scm
-----

;;;; m2.import.scm - GENERATED BY CHICKEN 4.7.5 -*- Scheme -*-

(eval '(import chicken scheme m))
(##sys#register-compiled-module
  'm2
  (list)
  '()
  (list (cons 'baz (ir-macro-transformer (lambda (e i c) `(foo)))) 'foo)
  (list))

;; END OF FILE



File: m2.scm
-----

(module
 m2
 (baz)
 (import chicken scheme)
 ;; uncommenting these two does not seem to make difference
 ;; (use m)
 ;; (import-for-syntax m)
 (reexport m)
 (define-syntax baz
   (ir-macro-transformer
    (lambda (e i c)
      `(foo)))))


File: m.import.scm
-----

;;;; m.import.scm - GENERATED BY CHICKEN 4.7.5 -*- Scheme -*-

(eval '(import chicken scheme))
(##sys#register-compiled-module
  'm
  (list '(bar . m#bar))
  '()
  (list (cons 'foo (ir-macro-transformer (lambda (e i c) `(bar)))))
  (list))

;; END OF FILE



File: m.scm
-----

(module
 m
 ((foo bar))
 (import chicken scheme)
 (define (bar) 1)
 (define-syntax foo
   (ir-macro-transformer
    (lambda (e i c)
      `(bar)))))



File: poi.scm
-----

(use m2)
(print (baz))