1 files changed, 1 insertions, 5 deletions
diff --git a/ntpshmmon.c b/ntpshmmon.c
index 56f90aa6..ce30cd28 100644
--- a/ntpshmmon.c
+++ b/ntpshmmon.c
@@ -13,14 +13,10 @@
 #include "gpsd_config.h"
 #include "ntpshm.h"
 #include "revision.h"
+#include "timespec.h"
 
 #define NTPSEGMENTS	256	/* NTPx for x any byte */
 
-/* difference between timespecs in nanoseconds */
-/* int is too small, 32 bit long is too small, avoid floats  */
-/* MUST be long long to maintain precision on 32 bit code */
-#define timespec_diff_ns(x, y)	(long long)(((x).tv_sec-(y).tv_sec)*1000000000LL+(x).tv_nsec-(y).tv_nsec)
-
 static struct shmTime *segments[NTPSEGMENTS + 1];
 static struct timespec tick[NTPSEGMENTS + 1];