;; file t1.scm:

(module t1 ()
   (import scheme (chicken base))
   (define _ 123))

;;file t2.scm:

(module t2 ()
  (import scheme (chicken base) srfi-71)
  (include "t1.scm")
  (import t1)
  (let* ((foo bar (values 1 2))) (print (+ foo bar))))

;; compiles when not including t1...