the patch gives rise to the following change in behaviour.

Before:

  $ emacs -Q -batch -l quit.el

  (quit)
  $ echo $?
  0

After:

  $ emacs -Q -batch -l quit.el
  Quit
  $ echo $?
  255

IOW, it's no longer possible to catch the quit around execute-kbd-macro.
I tried wrapping it in (catch 'exit ...) as well, but to no avail.
Surely it should always be possible to catch a quit condition from Lisp?

Thanks,

-- 
Basil