Use clock_realtime_fast where available

diff --git a/lib/isc/unix/time.c b/lib/isc/unix/time.c
index da25e5bf8e07639c8f70420a5c3f3c98a36a0548..dd50338e888cfa60afe8109f5be6a4acd412f956 100644 (file)
--- a/lib/isc/unix/time.c
+++ b/lib/isc/unix/time.c
@@ -36,8 +36,10 @@
 #define NS_PER_MS      1000000         /*%< Nanoseconds per millisecond. */
 #define US_PER_S       1000000         /*%< Microseconds per second. */
 
-#ifdef CLOCK_REALTIME_COARSE
+#if defined(CLOCK_REALTIME_COARSE)
 #define CLOCKSOURCE CLOCK_REALTIME_COARSE
+#elif defined(CLOCK_REALTIME_FAST)
+#define CLOCKSOURCE CLOCK_REALTIME_FAST
 #else
 #define CLOCKSOURCE CLOCK_REALTIME
 #endif