how to set language-env differently for some directories ?

[Rémi Letot]

Hi all,

I'm not an emacs or elisp expert, so when it comes to special things I
can only call for help :-)

My current emacs is in an UTF8 language-environment. For some
directories (actually a specific tree) I have to use Latin1. How can I
achieve that automatically ?

For the moment I manually switch when needed, but that's cumbersome
and prone to errors, so I'd like to automate it : all files under
"specific_dir" are to be treated in Latin1. Filenames and content.

Thanks,
-- 
Rémi