On Nov 30, 2007 11:34 AM, 山本和彦 Kazu Yamamoto <kazu@iij.ad.jp> wrote:

> I'm not sure the point of this example.

The point of the example is (and I'm sure you know it) that dynamic
variables can be used in ways that are not evident to the
byte-compiler just by looking at the lexical scope where the dynamic
variable is used...

> What I want to say is that case-fold-search in the following example
> is not warned with XEmacs because it is defined with 'defvar'.

So, yes: what you propose is forcing `defvar' for dynamic variables
used across function boundaries.

             Juanma