errno when it's being used by another thread that cares about it.
Yet we must be sure not to try calling the lock functions before
the thread library is fully initialized. */
- if (__builtin_expect (INTUSE (_dl_starting_up), 0))
+ if (__glibc_unlikely (INTUSE (_dl_starting_up)))
__writev (fd, iov, niov);
else
{