[Patch, libfortran] PR 47432 Use thread-safe ttyname_r() if available

[Tobias Burnus]

On 01/25/2011 06:33 PM, Janne Blomqvist wrote:
> the attached patch makes libgfortran use the thread-safe ttyname_r()
> function if available.
>
> Regtested on x86_64-unknown-linux-gnu, Ok for trunk?

OK. And I meant this patch and not the previous one when I talked about 
the follow-up patch (s/int/size_t/).

Tobias