id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	difficulty
1060	reexport doesn't reexport implicit syntax exports	Moritz Heidkamp		"Given a module that exports some syntax which expands to an identifier which isn't explicilty exported, that syntax will not work if it is reexported by another module. Example:

{{{
;;; foo.scm

(module foo

(some-syntax)

(import scheme)

(define-syntax some-implicitly-used-syntax
  (syntax-rules ()
    ((_ x) x)))


(define-syntax some-syntax
  (syntax-rules ()
    ((_ x)
     (some-implicitly-used-syntax 'x))))

)

;;; bar.scm

(module bar

()

(reexport foo)

)
}}}

To trigger the bug:

{{{
$ csc -s -J foo.scm 
$ csc -s -J bar.scm 
$ csi -R foo -p '(some-syntax bar)'
bar
$ csi -R bar -p '(some-syntax bar)'

Error: unbound variable: some-implicitly-used-syntax
}}}


This was tested with version 4.8.0.5 only so far."	enhancement	closed	minor	4.11.0	expander	4.8.x	fixed		Shawn Rutledge