BINary version numbers.

[David Vinayak Wallace <Gumby@mcc.com>]

    Date: Sat, 19 Mar 88 17:37 EST
    From: Jim Salem <Salem@Think.COM>

	Date: Fri, 18 Mar 88 13:33 CST
	From: David Vinayak Wallace <Gumby@mcc.com>

	Why don't you use DEFSYSTEM?

    For me this is because:

     1) It is not in the public domain (I can only use it on Symbolics LISPMs).

So use the public-domain version.  Overloading version numbers can't
solve the problem of figuring out what sources correspond with which
binaries.