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From: "Alex R. Mosteo" <devnull@mailinator.com>
Newsgroups: comp.lang.ada
Subject: Re: GNAT on Debian or Gentoo?
Date: Fri, 24 Mar 2006 16:02:29 +0100
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Date: 2006-03-24T16:02:29+01:00
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Bobby D. Bryant wrote:
> On Thu, 23 Mar 2006, "Alex R. Mosteo" <devnull@mailinator.com> wrote:
> 
> 
>>Bobby D. Bryant wrote:
>>
>>>On Wed, 22 Mar 2006, "Adrian Hoe" <abyhoe@gmail.com> wrote:
>>>
>>>
>>>>How about gcc/gnat 4.x?
>>>
>>>Should be a simple matter of hacking an ebuild.
>>>
>>>Is there any reason I would want to do that?  What's new between 3.4.x
>>>and 4.x?
>>
>>Most evident changes would be in Ada05 support
> 
> Thanks.  I guess it's about time to take that plunge...

Be warned that the thing is somewhat buggy, at least in the latest 
GAP/GPL release. That said, once you get the grasp of what works and 
what not, you can start to use some useful 2005 features.

I guess that gcc 4.1 can be a goop step forward in that respect, since 
some things that are improved over GAP/GPL (this is hearsay) are 
"limited with", anonymous access type record members, proper 
initialization of default box notation with controlled types, dot 
notation; all of them features that I find pretty useful. But then, I 
have GAP support so I want to continue using that release, even if it's 
less functional.

If you're interested in some particular 2005 feature you can ask me and 
I can tell you my experience (if I've tried it, of course) with the 
GAP/GPL releases. (I believe they're equivalent, except for the support).