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From: Kilgallen@SpamCop.net (Larry Kilgallen)
Newsgroups: comp.lang.ada
Subject: Re: Ada Operating System
Date: 23 Feb 2002 14:30:57 -0600
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In article <a58lop$a2g1@news.cis.okstate.edu>, David Starner <dvdeug@x8b4e53cd.dhcp.okstate.edu> writes:
> On 22 Feb 2002 20:44:21 -0800, Adrian Hoe <byhoe@greenlime.com> wrote:
>> I know there is ACVC test suite out there to certify Ada compilers
>> before they reach out the market. But then, why still use C to write
>> an Ada compiler?
> 
> Because GCC handles many languages, and there's a lot of work going into
> GCC to improve the C, C++ and Fortran compilers that improve the Ada
> compiler as a side effect. Because GCC handles pretty much every
> platform known to man, as long as it's got 32 bits and runs some form of
> Unix (or DOS or Windows or VMS.)

"Some form of Unix (or DOS or Windows or VMS)" seems to me quite a
bit shy of "every platform known to man".  It omits HP/MPE, MVS
and OS/400.  It also omits MacOS (pre-X) for which only the PowerPC
platform can be targeted by GNAT and neither platform can host GNAT.
(While using the Unix emulator to host a compiler is a neat trick,
it is not an example of GCC/GNAT being adapted to run on MacOS.)