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At Thu, 1 Dec 2005 11:45:19 -0500 (EST), Andre van Tonder wrote: > Since identifiers introduced by an expansion are distinct > (in the sense of bound-identifier=?) from library-toplevel > identifiers, would the following work? > > (library "let-div" "scheme://r6rs" > (define-syntax make-export > (syntax-rules () > ((_) > (indirect-export (quotient+remainder))))) > > (make-export) > (define (quotient+remainder n d) ....) Yes, because the `make-export' expansion doesn't introduce a binding of `quotient+remainder'; it merely refers to a binding of `quotient+remainder' (as well as `indirect-export'). In other words, the relevant predicate is not `bound-identifier=?' but `free-identifier=?'. [In PLT Scheme, it's `module-identifier=?', but I expect this predicate to be renamed `free-identifier=?' in the future.] Matthew