[AUCTeX] multifile document

[Jobst Hoffmann]

I have a problem with multifile documents. I want to aucTeX a file
a_01.tex in the directory a with a master file m.tex in the following
shortened directory structure:

               dir
                |
          +-----+------+
          |     |      |
        auto   m.tex   a
                       |
                       +---------+
                       |         |
                     a_01.tex   auto

a_01.tex contains "%%% TeX master: "../m", but if I edit a_01.tex,
aucTeX does not know anything about the style files which are well known
in m.tex. If I link a_01.tex into the directory dir, all things work as
promised, all style packages are known. 

Am I missing something or is there a better way to make things work (I
don't want to link several hundred files into their father or
grandfather directories)

Thanks for your advices in advance, 
happy aucTeXing! 
-- 
Prof. Dr. Jobst Hoffmann            Tel:   (0049)-2461-99-3159
Fachhochschule Aachen Abt. Jülich   Fax:   (0049)-2461-99-3189
Fachbereich 3                       email: address@hidden