Bug#693040: libav: Strange build failure on several archs

[Reinhard Tartler]

[CC'ing debian-gcc@ for additional input, libav fails to link on
armel, s390, s390x, ia64 and sparc. see bug #693040 for full context]

On Mon, Nov 12, 2012 at 12:45 PM, Bastian Blank <waldi at debian.org> wrote:
> On Mon, Nov 12, 2012 at 12:09:57PM +0100, Reinhard Tartler wrote:
>> I've tried to reproduce the problem in the porter sid chroot on
>> zelenka.debian.org, but was not able to reproduce the situation. All
>> archs also seem to have the same version of binutils/gcc.
>
> Do you try it with -j2 or higher?

I think I can rule out a race in the makefiles. I've uploaded -2, and
the package FTBFS on exactly the same architectures:

https://buildd.debian.org/status/logs.php?pkg=libav

What do these architectures have in common? Do they do something funky
wrt. to symbol versioning?

-- 
regards,
    Reinhard