more struct madness

so i finally found the time to see if my patches pass the uffi
tests. they don't.

in test/structs.lisp we have:

(uffi:def-struct foo
    (bar :pointer-self))

(uffi:def-foreign-type foo-ptr (* foo))

which should be:

(uffi:def-foreign-type foo-ptr (* (:struct foo)))

unless we changed def-struct to define a type name under openmcl, or
don't assume that a def-struct defines an "immediate" type with the
corresponding name.

however, my point is not the the tests fail, my point is that the
patch i wanted to send breaks backwards compatibility as far as the C
struct api goes. i think it would be a really bad idea to break
backwards compatibility (even though there's some uffi code which will
run on openmcl and not on, afaict, allegro). what should i do?

-- 
-Marco
Ring the bells that still can ring.
Forget your perfect offering.
There is a crack in everything.
That's how the light gets in.
     -Leonard Cohen