Re: byte compiler warnings for different Emacs versions

[Stefan Monnier]

> Thanks for your help. I guess I was ignorantly assuming that
> define-minor-mode was a built-in function, like defun.

It's got nothing to do with being built-in or not.  The issue is whether
it's a function or not.  Neither `defun' nor `define-minor-mode' are
functions (one is a macro, the other is a special form).  I.e. both would
suffer similarly (except that `defun' also exists in Emacs-20 so the
specific problem wouldn't show up).

> (eval-when-compile                      ; (`define-minor-mode' is a macro.)
>   (if (fboundp 'define-minor-mode)

This is not what I suggested.  Read carefully what I said: *the comparison*
should be wrapped in eval-when-compile, not the whole if expression.  I.e.:

  (if (eval-when-compile (fboundp 'define-minor-mode))
      ...
    ...)


-- Stefan