added in linux-v3.10 commit 1ff3c9677bff7e468e0c487d0ffefe4e901d33f4
@ -87,6 +87,8 @@ struct itimerspec
#define CLOCK_BOOTTIME 7
#define CLOCK_REALTIME_ALARM 8
#define CLOCK_BOOTTIME_ALARM 9
#define CLOCK_SGI_CYCLE 10
#define CLOCK_TAI 11
#define TIMER_ABSTIME 1