And now using a more standard error reporting function.
I think it's done now.
(define-syntax re-export-public-interface
(syntax-rules ()
"Re-export the public interface of a module or modules. Invoked as
@code{(re-export-public-interface (mod1) (mod2) ...)}."
((_ (m0 m0* ...) (mn mn* ...) ...)
(let ((iface (module-public-interface (current-module))))
(define (r-e-p-i module)
(cond-expand
(guile-3
(module-for-each
(lambda (sym val)
(hashq-set! (module-replacements iface) sym #t)
(module-add! iface sym val))
(resolve-interface module)))
(else
(module-use! iface (resolve-interface module)))))
(r-e-p-i '(m0 m0* ...))
(r-e-p-i '(mn mn* ...))
...))
((_)
(syntax-error "must provide one or more module names"))
((_ m m* ...)
(syntax-error "module names must look like lists"))))
