Re: Does clang/llvm need to be rebuilt because of the gcc 5.0 upgrade?

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n Sat, Feb 14, 2015 at 11:41 AM, Jakub Jelinek <jakub@xxxxxxxxxx> wrote:
On Sat, Feb 14, 2015 at 11:38:13AM -0700, Dave Johansen wrote:
> On Sat, Feb 14, 2015 at 11:33 AM, Jakub Jelinek <jakub@xxxxxxxxxx> wrote:
>
> > On Sat, Feb 14, 2015 at 09:25:50AM -0700, Dave Johansen wrote:
> > > I'm working on packaging include-what-you-use and it works just fine with
> > > Fedora 21, but in rawhide the tests are failing with std::length_error
> > > exceptions ( http://koji.fedoraproject.org/koji/taskinfo?taskID=8936112
> > ).
> > > I was thinking that maybe this was because clang/llvm needs to be rebuilt
> > > because of the gcc 5.0 upgrade. Is that the issue? Or is something else
> > > going on?
> >
> > In F22, C++ packages don't need to be rebuilt, we default to the old ABI
> > for
> > C++.  In F23, indeed, everything written in C++ needs to be rebuilt, and
> > there will eventually be a mass rebuild.
>
>
> I remember reading that, but do you have any ideas on why the tests are
> failing with that exception on rawhide?

The ABI of std::string and std::list has changed in F23.
Therefore, if you depend on C++ libraries other than libstdc++, they first
need to be rebuilt and then your package.

Sorry. That was a total brain dead moment on my part. I forgot that F22 had branched and so rawhide is F23.

Can I just rebuild llvm/clang? Or is there some mass rebuild that's already in the works that that will conflict with?

Thanks,
Dave
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