Mirko,

On Mon, Feb 14, 2011 at 3:35 PM, Mirko Vukovic <mirko.vukovic@gmail.com> wrote:
> I am trying to make my gsd-based code to work on both sbcl (which supports
> foreign-arrays) and clisp which does not.  Hence the questions/requests:
>
> 1) Foreign-array creates the `static-vectors' feature.  I want to
> double-check that I can use it to test if foreign-arrays is loaded or not
> (#+static-vectors or #-static-vectors).  Or should I use #+sbcl, #+clisp

The static-vectors feature should only be used to determine if static
vectors underlie the foreign arrays, and that really only determines
whether cl-array could return something non-nil.  I'm not sure how you
would tell using #+static-vectors if foreign-array is loaded if you're
on clisp.