Bootstrapping GCC 5.1.0 together with Binutils 2.25

Bootstrapping GCC 5.1.0 together with Binutils 2.25

[Ondrej Jakubcik]

Hi all,

I am having problems with boostrapping GCC 5.1.0 using a merged tree
together with Binutils 2.25 and other dependencies (GMP, MPC, MPFR,
ISL).

I even raised a bug: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66356

Did anyone else try this? Successfully, even?

Many thanks,
Ondrej

Re: Bootstrapping GCC 5.1.0 together with Binutils 2.25

[Jonathan Wakely]

On 30 June 2015 at 21:50, Ondrej Jakubcik wrote:
> Hi all,
>
> I am having problems with boostrapping GCC 5.1.0 using a merged tree
> together with Binutils 2.25 and other dependencies (GMP, MPC, MPFR,
> ISL).
>
> I even raised a bug: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66356

IIRC combined-tree builds do not work for released versions of GCC and
binutils, you need to use the latest HEAD or trunk of both for that to
work.

Why not just install binutils first, then install GCC to the same prefix?

Re: Bootstrapping GCC 5.1.0 together with Binutils 2.25

[Ondrej Jakubcik]

Ok, that's what I'll do then. I am fine if it is expected behaviour,
but in that case it would be best to remove the combined tree
suggestion from official documentation:
https://gcc.gnu.org/install/download.html

Would it work if I checked out the appropriate tags from SVN or is
something being modified at the time of release that prevents using
the combined tree approach?

Thanks a lot,
Ondrej

On Wed, Jul 1, 2015 at 3:12 AM, Jonathan Wakely <jwakely.gcc@gmail.com> wrote:
> On 30 June 2015 at 21:50, Ondrej Jakubcik wrote:
>> Hi all,
>>
>> I am having problems with boostrapping GCC 5.1.0 using a merged tree
>> together with Binutils 2.25 and other dependencies (GMP, MPC, MPFR,
>> ISL).
>>
>> I even raised a bug: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66356
>
> IIRC combined-tree builds do not work for released versions of GCC and
> binutils, you need to use the latest HEAD or trunk of both for that to
> work.
>
> Why not just install binutils first, then install GCC to the same prefix?

Re: Bootstrapping GCC 5.1.0 together with Binutils 2.25

[NightStrike]

On Wed, Jul 1, 2015 at 1:10 AM, Ondrej Jakubcik <ojakubcik@gmail.com> wrote:
> Ok, that's what I'll do then. I am fine if it is expected behaviour,
> but in that case it would be best to remove the combined tree
> suggestion from official documentation:
> https://gcc.gnu.org/install/download.html
>
> Would it work if I checked out the appropriate tags from SVN or is
> something being modified at the time of release that prevents using
> the combined tree approach?

I think the biggest issue is that while the releases of binutils and
gcc are not in sync, the repository HEAD versions generally are.

The suggestion has come up multiple times that when a release of
either project happens, there should be some attempt to synchronize it
with some release of the other.  For instance, GCC 5.1 should work
with binutils 2.X, and vice versa.  But, I imagine that the users that
would benefit from that synchronization are few, and priority of the
synchronization task is rather low.  In truth, I doubt that there is
anyone both able and willing to do it.

But, I'm sure you could try.

Re: Bootstrapping GCC 5.1.0 together with Binutils 2.25

[Jonathan Wakely]

On 1 July 2015 at 06:28, NightStrike wrote:
> I think the biggest issue is that while the releases of binutils and
> gcc are not in sync, the repository HEAD versions generally are.

Yup, that's my understanding too.