bug#14270: shadow.el, simple.el, shadows shadows

[Glenn Morris <rgm@gnu.org>]

Greg Minshall wrote:

> hi.  in shadow.el, list-load-path-shadows has some code to look for the
> (originally, first; now last)
> ----
> http://lists.gnu.org/archive/html/bug-gnu-emacs/2002-03/msg00507.html
> ----
> directory with simple.el in it.  i *assume* that originally, there were
> no directories underneath, e.g., /usr/local/share/emacs/24.3/lisp.

No, the simple.el check is for something else.
list-load-path-shadows assuredly works fine with subdirs.

It's actually because when Emacs was running uninstalled, it used to
add the installation lisp directories to load-path if they existed.
It doesn't do that since 2012-07-07, so this check can probably be
removed anyway, but it should not cause the issue you describe by itself.

> in my setup, i have local copies of mh-e and org.  if i say M-x
> list-load-path-shadows, i get the message that
> ----
> No Emacs Lisp load-path shadowings were found
> ----
> but, if i disable the search for simple.el, i instead get the more
> accurate:
> ----
> 118 Emacs Lisp load-path shadowings were found
> ----

This implies you have multiple copies of "simple.el" in directories
directly specified in your load-path. Do you? If so, why?
(cedet/ede/simple.el does not count, because cedet/ede is not in
load-path.)