Proposed Pthread affinity APIs

[Jennifer Averett]

The files for the proposed affinity changes to newlib are
attached.  cpuset.h is added to newlib/libc/sys/rtems/sys/
and the following will be added to the change log:

3013-11-11  Jennifer Averett <jennifer.averett at oarcorp.com>

	* libc/sys/rtems/sys/cpuset.h: New file.
	* libc/include/pthread.h: Add CPU afficinit and get attribute
	methods which are in GNU/Linux but beyond the POSIX standard.
	* libc/include/sys/types.h: Add cpu_set_t to pthread_attr_t.

Does anyone see any problems?  

Jennifer Averett
On-Line Applications Research
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