[libvirt] [PATCH 0/2] Attempt, and fail, to fix build with Clang 3.9 / Linux

[Andrea Bolognani]

On Fri, 2017-01-06 at 15:48 -0600, Eric Blake wrote:
> > The last one I was unable to work around in any sensible
> > manner: when linking, clang fails with
> > 
> >   ../gnulib/lib/.libs/libgnu.a(mgetgroups.o):
> >   In function `realloc_groupbuf':
> >   .../libvirt/gnulib/lib/mgetgroups.c:45:
> >   undefined reference to `__muloti4'
> > 
> > This seems to be a well-known issue[1] with no solution in
> > sight; passing CFLAGS='-rtlib=compiler-rt' to configure
> > allows the compilation to succeed but, yeah, way gross.
> 
> And gnulib just fixed things to avoid tickling that clang bug:
> 
> http://git.savannah.gnu.org/cgit/gnulib.git/commit/?id=04441fd8
> 
> Work around LLVM bug 16404, which is still not fixed.
> https://llvm.org/bugs/show_bug.cgi?id=16404
> Problem reported by Nelson H. F. Beebe.

Wow, that's great!

> Shall I go ahead and update the gnulib submodule to the latest, and see
> if you can get further with your clang tests as a result?

I might not be able to play with Clang again in the immediate
future, but I don't see why that should prevent us from paving
the way for other parties who might be interested. Please go
right ahead :)

-- 
Andrea Bolognani / Red Hat / Virtualization