Make sem_timedwait use FUTEX_CLOCK_REALTIME (bug 18138)

[Andreas Schwab]

Joseph Myers <joseph@codesourcery.com> writes:

> @@ -45,6 +46,8 @@ futex_abstimed_wait (unsigned int* futex, unsigned int expected,
>      }
>    else
>      {
> +#if (!defined __ASSUME_FUTEX_CLOCK_REALTIME \
> +     || !defined lll_futex_timed_wait_bitset)

I would prefer #if defined __ASSUME_FUTEX_CLOCK_REALTIME && defined
lll_futex_timed_wait_bitset with the new code in the first branch.  The
existing code is a hopefully temporary fallback now.  Ok with that
change.

Andreas.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
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