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

[Jakub Jelinek]

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 at redhat.com> 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.

	Jakub