Ada policy

[Richard Kenner]

    This discussion is about appearances as well as actuality.  Can you at
    least agree that a reasonable person could reach my position?  That is,
    maybe ACT has never actually broken using an older GCC to bootstrap
    the Ada front end, but can you understand how I and others have come
    to the conclusion that your policy was not to keep it working?

You have the quantifiers wrong.  The statement was that there was no
*guarantee* that it would work with older version, that there was the need
for freedom to allow it not to work with arbitrarily old versions.  That
doesn't mean there was a plan to purposely break it, just the reality 
that the cost of having it be compilable by arbitrarily-old versions
may be more than the benefits of doing so at times.