Prevent iso-8859 unification for some files?

[Kai Großjohann]

Rumor has it that there are files in the Emacs source code where it
would be dangerous to turn on unify-8859-on-encoding-mode and/or
unify-8859-on-decoding-mode.  WIBNI it was possible to put, say,

    -*- unify-8859-on-encoding: nil; unify-8859-on-decoding: nil; -*-

in the first line so that even people with

    (unify-8859-on-encoding-mode 1)
    (unify-8859-on-decoding-mode 1)

can edit the file without problems?

Or is this possible already, and I just don't know it yet?

kai
-- 
~/.signature is: umop 3p!sdn    (Frank Nobis)