[racket] Scribble Warning / "on this page"

Hi

I'm writing a Scheme project documentation with Scribble, and I have this
error :

WARNING: no declared exporting libraries for definition

I've understood that I should write something like "declare-exporting ..."
but I don't understand why... I don't need to export anything, all my
documentation is written on the same page !

My page is like that :

#lang scribble/manual

@(require (for-label racket))

@title{Documentation}

...

@(defclass porte% object% {and% or% not% nand%}
   @(defconstructor ((x number?)
                     (y number?)
                     (val-out any/c #f)
                     (co-out any/c #f)
                     (name (or/c string? #f))))
   @(defmethod (get-x) (x number?) "...")
   @(defmethod (get-y) (y number?) "..."))

then i have some @(defproc ...)

And I have 2 questions : How do I make a tag in a defproc ? I mean, if I
define a  procedure with defproc, how do I make a hyperlink somewhere else
? I know how to make it for a section (put a tag in the section, then
seclink{tag} but i don't know how to do with a defproc...
And then, how do we make an "on this page" as in the documentation racket ?
i've read the documentation severals times, but unless a headache I didn't
get anything...


Thank you !
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.racket-lang.org/users/archive/attachments/20120513/c80ee57e/attachment.html>