Re: preparing for GCC 4.9

["David Gosselin" <dave@appleside.org>]

Hello and apologies for the cross-post,
I've built GCC 4.9 on my PowerMac G5 (ppc64) running Debian 7.3.  I'd like 
to support the port of Debian to this platform using GCC 4.9 and would 
appreciate a pointer on where to begin if possible.
Additionally, I could provide a SSH login to the machine.
Thanks,
Dave


-----Original Message----- 
From: Matthias Klose
Sent: Tuesday, May 13, 2014 7:00 AM
To: David Gosselin ; Patrick Baggett
Cc: debian-ports@lists.debian.org
Subject: Re: preparing for GCC 4.9

sorry, can't help with this. setting up a pbuilder or sbuild, and start 
building
packages from the base system?

 Matthias

Am 13.05.2014 03:26, schrieb David Gosselin:
> I'm in the same boat as Patrick, except with a PowerMac G5. Please let us 
> know how to begin.
> Thanks,
> Dave
>
> > On May 12, 2014, at 16:02, Patrick Baggett <baggett.patrick@gmail.com> 
> > wrote:
> >
> > Hi Matthias et al,
> >
> > I'd like to try to do some of this using my sparc box and see how far I 
> > get. Is there a link that explains how to set up these steps? Others seem 
> > to "just know" what to do, but I haven't the slightest idea of where to 
> > begin. I have a box with gcc-4.9, plenty of disk space, and electricity 
> > to burn. Where do I start?
> >
> > Patrick
> >
> >
> > > On Thu, May 8, 2014 at 10:25 AM, Matthias Klose <doko@debian.org> wrote:
> > > With gcc-4.9 now available in testing, it is time to prepare for the 
> > > change of
> > > the default to 4.9, for a subset of architectures or for all (release)
> > > architectures.  The defaults for the gdc, gccgo, gcj and gnat frontends 
> > > already
> > > point to 4.9 and are used on all architectures.  Issue #746805 tracks 
> > > the
> > > gfortran default change, including the change of the Fortran 90 module 
> > > version
> > > change.
> > >
> > > The Debian archive was rebuilt twice on amd64, once in February, 
> > > resulting in
> > > bug submissions for GCC and feedback for the porting guide [1], a second 
> > > time in
> > > March to file issues for packages failing to build with GCC 4.9 [2]. 
> > > Another
> > > test rebuild for Ubuntu on amd64, i386, armhf, ppc64el didn't show any 
> > > other
> > > compiler regressions on these architectures.
> > >
> > > I would like to see some partial test rebuilds (like buildd or minimal 
> > > chroot
> > > packages) for other architectures. Any possibility to setup such a test 
> > > rebuild
> > > for some architectures by the porters? Afaics the results for the GCC 
> > > testsuite
> > > look okish for every architecture.
> > >
> > > I'll work on fixing the build failures in [2], help is of course 
> > > appreciated.
> > > Almost all build failures are analyzed and should be easy to fix 
> > > (exceptions
> > > e.g. #746883).  Patches for the ones not caused by the Debian packaging 
> > > may be
> > > found in distributions already using GCC 4.9 as the default compiler 
> > > (e.g.
> > > Fedora 21).
> > >
> > > If anything goes well, and a large amount of build failures are fixed, I 
> > > plan to
> > > make GCC 4.9 the default for the C/C++/ObjC/Obj-C++ frontends at the end 
> > > of May,
> > > beginning of June.
> > >
> > > Bugs reports for packages building with a legacy version of GCC (4.6, 
> > > 4.7, 4.8)
> > > will be filed.
> > >
> > >   Matthias
> > >
> > > [1] http://gcc.gnu.org/gcc-4.9/porting_to.html
> > > [2]
> > > https://bugs.debian.org/cgi-bin/pkgreport.cgi?tag=ftbfs-gcc-4.9;users=debian-gcc@lists.debian.org
> > >
> > >
> > > --
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