server: Use kernel support for thread affinity when available

[Chris Robinson]

On Thursday 10 September 2009 9:43:02 am Juan Lang wrote:
> +/* Define to 1 if you have the `sched_getaffinity' function. */
> +#undef HAVE_SCHED_GETAFFINITY
> +
...
> +#ifdef HAVE_SCHED_GET_AFFINITY
> +#define __USE_GNU
> +#include <sched.h>
> +#endif

Looks like a typo there.