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Re: Changing base compiler requirement for bootstrapping GNAT
- From: Joel Sherrill <joel dot sherrill at oarcorp dot com>
- To: Jakub Jelinek <jakub at redhat dot com>, Andreas Schwab <schwab at linux-m68k dot org>
- Cc: Tristan Gingold <gingold at adacore dot com>, "gcc at gcc dot gnu dot org" <gcc at gcc dot gnu dot org>, Arnaud Charlet <charlet at adacore dot com>
- Date: Thu, 19 Jan 2017 09:20:31 -0600
- 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 1/19/2017 6:33 AM, Jakub Jelinek wrote:
On Thu, Jan 19, 2017 at 01:26:32PM +0100, Andreas Schwab wrote:
On Jan 19 2017, Tristan Gingold <email@example.com> 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 still see a lot of people using CentOS/RHEL 6 which has
gcc 4.4.7. This is particularly true of large organizations.
What does CentOS/RHEL 7 have for gcc?
What would be the procedure to get a recent GNAT on these
distributions? For RTEMS, we use very recent (6.3.0) gcc
for our cross tools but usually don't have to worry about
updating the native compiler. CentOS 6 is not a problem
to build up to date cross tools on currently.