[v3] c++0x <mutex> and <condition_variable>

[Paolo Carlini]

Chris Fairles wrote:
> OK, so, all testcases need require-cstdint.
>   
Ok.
> I can change this check:
> #ifdef _GLIBCXX_HAS_GTHREADS
> to
> #if defined(_GLIBCXX_HAS_GTHREADS) && defined(_GLIBCXX_USE_C99_STDINT_TR1)
> in the headers.
>   
Ok.
> As for _GTHREAD_HAS_COND, since its basically a subset of
> _GLIBCXX_HAS_GTHREADS, is there any point checking for it in
> <condition_variable>? Thus far I've been assuming that a platform
> either provides the entire gthread backend for all c++0x thread
> library requirements or it simply doesn't get to use the library so an
> all-or-nothing _GLIBCXX_HAS_GTHREADS (along with a
> dg-requires-gthreads for testcases) seems sufficient.
>
> End of the day, there should never be a case where
> _GLIBCXX_HAS_GTHREADS is defined but not _GTHREAD_HAS_COND.
>   
Good. One less macro contortion... ;)

Paolo.