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From: Don McCabe <donald.p.mccabe@boeing.com>
Subject: Re: Compiling AFLEX 1.4a with Dec Ada 83 3.5-20 on Open VMS 7.1
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References: <9bsm5c$khe$1@uranium.btinternet.com> <9c1avq$mr9$1@nh.pace.co.uk>
 <3AF000FC.2E00D5F0@NOSPAMcompaq.com> <9cp2to$gkf$1@nh.pace.co.uk>
 <u38o8Pk66$OW@eisner.encompasserve.org> <9cpd6o$kgg$1@nh.pace.co.uk>
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Date: Mon, 7 May 2001 16:09:17 GMT
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Date: 2001-05-07T16:09:17+00:00
List-Id: <comp.lang.ada>

The "official" Ada compiler from Compaq is still the Ada83 compiler from 
DEC and is now supported as a "mature" product which means no new 
functionality will be developed but maintenance support is available for 
programs committed to the compiler. Also, there was indeed a port of 
ACT's GNAT which was started by DEC and is "promoted" by Compaq as an 
alternative compiler. All maintenance/upgrades/etc to the GNAT port are 
strictly through ACT. The port did give users of Compaq Ada83 a very 
easy port to the ACT Ada95 compiler because it provided all the required 
pragmas and even the extended system package. We still use both 
compilers on our Alpha machines.

Marin David Condic wrote:

> O.K. Compaq bought DEC - thus inheriting the DEC Ada83 compiler. DEC had
> contracted at some point with ACT to have GNAT ported to their hardware and
> basically used this as their upgrade path from Ada83. (Hence GNAT was the
> "official" DEC compiler at some juncture.) Did Compaq take the DEC Ada83
> compiler and start upgrading it? If so, for what reason? (Seeing as how they
> had Ada95 available.) Or is this some completely unrelated product? If it
> doesn't target VMS, it doesn't seem to have much relevance to the original
> problem, so I'm rather guessing that it must be derived from the original
> DEC compiler.
> 
> MDC
> --
> Marin David Condic
> Senior Software Engineer
> Pace Micro Technology Americas    www.pacemicro.com
> Enabling the digital revolution
> e-Mail:    marin.condic@pacemicro.com
> Web:      http://www.mcondic.com/
> 
> 
> "Larry Kilgallen" <Kilgallen@eisner.decus.org.nospam> wrote in message
> news:u38o8Pk66$OW@eisner.encompasserve.org...
> 
>> He ascribed the "extensions for Ada 95" to "Compaq Ada".  That is the
>> Ada83 implementation (nee DEC Ada (nee VAX Ada)) and has nothing to
>> do with GNAT on Alpha VMS.
>> 


-- 
Donald P. McCabe        mailto:donald.p.mccabe@boeing.com
Embedded Software Designer V    Phone: (480) 891-6135
The Boeing Company - Mesa    FAX  : (480) 891-5280