[plt-scheme] equal? for native extension types [patch]

> On Tue, 13 Feb 2007, Dimitris Vyzovitis wrote:
>
>>  equal? knows about some built-in types and structs -- and that's about it.
>>  If you happen to define extension types with meaningful equality tests,
>>  then you are stuck. Quite frustrating.

Hi Dimitris,

Whoops!  I'm sorry for not reading your email closely enough.  My reply 
was irrelevant.  My apologies!