GP lisper spambait@CloudDancer.com writes:
With the root user, ~N~ backups are fine, regardless of the file ext. With the lisp user (I have one username exclusively for lisp work), ~N~ backups work on everything but .lisp files. So the version control settings would seem to be active, and testing in a *scratch* emacs buffer shows expected values.
You mention CVS. Are you sure that the difference is between lisp files and all other files, or is it that the lisp files are under CVS and the others are not?
If emacs can detect that a file is under CVS it will not by default generate ~ or numbered backup files for it.
Emacs normally does not save backup files for source files that are maintained with version control. If you want to make backup files even for files that use version control, set the variable `vc-make-backup-files' to a non-`nil' value.
from the Info node '(emacs) General VC Options'. This is to my mind the kind of DWESRM crap that we're conditioned to expect from VC mode, but there you go.
-dan