Checking patch sysdeps/mach/hurd/htl/pt-hurd-cond-timedwait.c...
error: while searching for:
  if (abstime != NULL && ! valid_nanoseconds (abstime->tv_nsec))
    return EINVAL;

  /* Atomically enqueue our thread on the condition variable's queue of
     waiters, and mark our sigstate to indicate that `cancel_me' must be
     called to wake us up.  We must hold the sigstate lock while acquiring

error: patch failed: sysdeps/mach/hurd/htl/pt-hurd-cond-timedwait.c:73
Applying patch sysdeps/mach/hurd/htl/pt-hurd-cond-timedwait.c with 1 reject...
Rejected hunk #1.