RFC/Ada: removal of $(ADAC) support

[Zack Weinberg]

dewar@gnat.com (Robert Dewar) writes:

>> No. There is only one C source file that needs to be compiled
>> with the compiler that is used for the Ada source code: the one that
>> defines __gnat_raise_exception.  Which is what the patch you rejected
>> did.
>
> That's just with respect to one particular problem. The connection
> between the Ada parts of the code and the C parts of the code is
> intimate and extensive, and even the slightest change in layout can
> disturb this connection as well as other things.

I reiterate that there is no known problem in this domain other than
the one affecting __gnat_raise_exception; you are spreading FUD.

> Why encourage people to try compiling GNAT with non-matching
> compilers when this is known to be a potential source of problems
> and is completely unnecessary.

I disagree that it is unnecessary.  See my response to Kenner.

zw