[llvm] r187271 - Move the default back to pipefail. I accidentally reverted it before.

[Chandler Carruth]

On Mon, Jul 29, 2013 at 3:44 PM, Sebastian Pop <spop at codeaurora.org> wrote:

> This patch breaks Hexagon's buildbots:
>
>  http://lab.llvm.org:8011/builders/clang-hexagon-elf/builds/803
>
>         ********************
>         Failing Tests (1):
>             Clang :: Driver/qa_override.c
>
> To reproduce, in a linux box, configure with:
>
> $ ../configure --disable-bindings --build=x86_64-linux-gnu
> --host=x86_64-linux-gnu --target=hexagon-unknown-elf
> --enable-targets=hexagon --build=hexagon-unknown-elf
> --host=hexagon-unknown-elf --without-llvmgcc --without-llvmgxx
> --enable-optimized --enable-assertions
> $ make && make check-all
>
> Thanks,
> Sebastian
>

I think I fixed this in r187376 -- i suspect your test is executing in a
directory it can't write a .o file to, and this test tried to do just that.
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