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Newsgroups: comp.lang.ada
Subject: Re: Tricks Of The Trade: How To Compile Large Program On Two Very
  Different Compilers
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From: Stephen Leake <stephen_leake@stephe-leake.org>
Date: Sat, 07 Nov 2009 00:59:10 -0500
Message-ID: <u1vkaooy9.fsf@stephe-leake.org>
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Date: 2009-11-07T00:59:10-05:00
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ChristopherL <clusardi2k@aol.com> writes:

> On Nov 5, 11:04�am, "Jeffrey R. Carter"
> <spam.jrcarter....@spam.acm.org> wrote:
>> ChristopherL wrote:
>>
>> > They are different versions of the same Ada packages, one version
>> > tailored
>> > for system A, the other for system B, but implementing the same
>> > functionality.
>>
>> We need to know what it is about these packages that results in you having
>> different versions for the 2 compilers. Some things that differ between
>> compilers can be handled in a single package; others require that you have
>> different bodies for the different compilers.
>>
>
> One requires renaming routines, some of the pragmas to be removed, and
> some of the overloaded operators to be removed.

The general approach to this is to use separate files in separate
directories, and use compiler-specific techniques to select the right
directory at compile time.

This is easy with GNAT project files; other compilers have other ways
to do it.

-- 
-- Stephe