Re: GNAT 5.0 for the curious

[David Holm <david@realityrift.com>]

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On Fri, 29 Aug 2003 23:58:59 +0100
"Luke A. Guest" <laguest@__n_o_s_p_a_m__abyss2.demon.co.uk> wrote:

> On Fri, 29 Aug 2003 20:10:53 +0000, David Holm wrote:
> 
> > Ah, you are right. I just assumed everyone would already be on ~x86 as gnat-3.15p is still
> > there. I will move it to stable any day now however. We are also thinking of unmasking
> > gnat-5.0 and placing it in ~x86, so I'm interested if you find any bugs (in which case I
> > will keep it masked a bit longer).
> 
> Actually, I think it'd really cool if:
> 
> 1) You could get it compile with gcc-3.x when that is emerged. you can
> emerge different gcc's, right? this would probably help.

Hmm, there could be issues here. First of all, a lot of people have protested against compiling
gcc with support for other languages simply because it takes too long and they don't want them.
Of course, a USE flag could work around this.
The second problem is that at the moment the GNAT 5.0 patches are for the gcc 3.2 branch and
gentoo will move on to 3.3 as soon as it is stable. I do not want to update ACTs patches because
if you follow their directions you are likely to get the stability they (almost) guarantee when
using GNAT, but if I start modifying things there is no telling what might go unstable.
ACT will probably release patches for newer versions of gcc if there is a need for it, but it
might be difficult to sync with our version updates. The gcc maintainer will certainly not hold
of a release simply because a handful of us wants to wait for the next GNAT patch.
Why do you want it to be in gcc instead of a separate package?

> 2) I could specify which languages I want to build from USE flags, i.e. USE="c c++ ada"

This has been discussed many times, hopefully we will see this soon. At the moment you can
specify if you want java support this way.

Oh, another thing. The gcc maintainer was quite glad that I took over everything Ada-related as
he is already overwhelmed with work on making gcc compile as cleanly as possible.

//David Holm

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