+# For cpusleep plugin
+AC_CACHE_CHECK([whether clock_boottime and clock_monotonic are supported],
+ [c_cv_have_clock_boottime_monotonic],
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+[[
+#include <time.h>
+]],
+[[
+ struct timespec b, m;
+ clock_gettime(CLOCK_BOOTTIME, &b );
+ clock_gettime(CLOCK_MONOTONIC, &m );
+]]
+ )],
+ [c_cv_have_clock_boottime_monotonic="yes"],
+ [c_cv_have_clock_boottime_monotonic="no"]))
+
+