AC_CHECK_TYPES([struct timespec, clockid_t], [], [], [[#include <time.h>]])
AC_SEARCH_LIBS([clock_gettime], [rt posix4])
AC_CHECK_FUNCS([clock_gettime])
+AC_CHECK_FUNCS([sched_setscheduler sched_get_priority_min sched_get_priority_max nice])
# Check system type
case "$host_os" in