[Python-Dev] FYI: Python 2.7.1 + gcc 4.6 (experimental) probable optimizer problem

[Antoine Pitrou]

On Sat, 8 Jan 2011 22:58:51 +0100
Stefan Krah <stefan at bytereef.org> wrote:
> Antoine Pitrou <solipsis at pitrou.net> wrote:
> > On Sat, 8 Jan 2011 12:03:35 -0800 (PST)
> > "Ralf W. Grosse-Kunstleve" <rwgk at yahoo.com> wrote:
> > > I just wanted to share an observation in case Python developers are
> > > interested:
> > > Python 2.7.1 doesn't build with the current gcc 4.6 svn.
> > > Note that gcc 4.6 is now in "bug-fix only" mode.
> > 
> > You should report a bug with the gcc developers.
> > By the way, can you try to build Python 3.2 too?
> 
> I can reproduce this with release27-maint on Fedora-14/amd64/gcc-4.6.
> -fno-strict-aliasing is enabled.

It might be interesting to have a buildbot with a bleeding edge
toolchain. Although in this case nobody rushed to diagnose the
three-month old issue anyway:

> There is an issue for this:
> 
> http://bugs.python.org/issue9880

Regards

Antoine.