[AUCTeX] Problem with aspell and accents

[Christophe FARGES]

Hello everyone,

I don't know if my request is directly related with auctex, but I hope 
someone will be able to help me.
I installed a french aspell dictionnary in xemacs and added the 
following lines to the xemacs init.el file:
(setq-default ispell-program-name "aspell")
(setq ispell-dictionary "francais")

It works and uses the correct dictionnary, but I've got problems with 
word with accents. For example, if I want to display this word in latex: 
"définir" (mean define), I have to type "d\'efinir". When I run aspell 
on xemacs, it doesn't see "d\'efinir" as a whole word. Aspell sees it as 
2 words: "d" and "efinir".
How can I do to make it work?

Thanks!
Christophe