Hello Jean & Peter,
Jean Magnan de Bornier firstname.lastname@example.org writes:
Well, AucTeX does recognize a LaTeX file from a ConTeXt file; no need for that!
I did it like that because I have (setq-default TeX-master nil) in my .emacs so it asks then inserts the local variables that Peter mentioned. Having emacs recognise a context file by \starttext is fine except when you open a new file.
This is drifting off topic but, if you have any tweaks to make AUCTeX work better with context than it does out of the box then I'd be glad to hear about them.