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Re: Changing base compiler requirement for bootstrapping GNAT
- From: Tristan Gingold <gingold at adacore dot com>
- To: Jakub Jelinek <jakub at redhat dot com>
- Cc: Andreas Schwab <schwab at linux-m68k dot org>, gcc at gcc dot gnu dot org, Arnaud Charlet <charlet at adacore dot com>
- Date: Thu, 19 Jan 2017 16:26:33 +0100
- Subject: Re: Changing base compiler requirement for bootstrapping GNAT
- Authentication-results: sourceware.org; auth=none
- References: <7AE26BD6-528A-4357-B0C5-5AFC4EC1B412@adacore.com> <firstname.lastname@example.org> <20170119123315.GL1867@tucnak>
> On 19 Jan 2017, at 13:33, Jakub Jelinek <email@example.com> wrote:
> On Thu, Jan 19, 2017 at 01:26:32PM +0100, Andreas Schwab wrote:
>> On Jan 19 2017, Tristan Gingold <firstname.lastname@example.org> wrote:
>>> Is it ok to require gcc 4.9 (3 years old) or later to build GNAT ?
>> The newest Ada compiler available for SLE11 is 4.8.
> Various people still use 4.4 or even 4.1 as bootstrap compilers.
> While 3 years old requirement is way better than the Rust nonsense (only
> support bootstrap with 6 weeks older Rust and not older), it is still not
> good enough for GCC IMHO.
I was not able to build gnat with a gcc 4.1 compiler (looks to be too old),
but I think I can add compatibility stuff to be able to bootstrap with gcc-4.3
(which is 8 years old).