ENOSYS            123 native_client_sdk/src/libraries/third_party/pthreads-win32/need_errno.h #define ENOSYS          40
ENOSYS            280 native_client_sdk/src/libraries/third_party/pthreads-win32/pthread.h #  define ENOSYS 140     /* Semi-arbitrary value */
ENOSYS             66 third_party/libusb/src/msvc/errno.h #define	ENOSYS		40	/* Function not implemented (88 in Cyg?) */