[PATCH, libstdc++] Fix missing gthr-default.h issue on libstdc++ configure

[David Edelsohn]

On Fri, Oct 12, 2012 at 10:59 AM, Paolo Carlini
<paolo.carlini@oracle.com> wrote:
> On 10/12/2012 04:20 PM, Pavel Chupin wrote:
>>
>> Please see attached patch (applicable after revert).
>> I've moved libgcc libstdc++ common configure thread header chunk into
>> separate gthr.m4.
>> Could you please try it on AIX?
>>
>> Is it OK for trunk?
>
> Looks Ok. If David can test is successfully on AIX I can approve it.

I was able to bootstrap successfully with the patch.

Thanks, David