Various small cleanups.

Fix a return type.  Note start-of-cycle in some test loads.
Consolidate -DGNU_SOURCE loads.

1 files changed, 0 insertions, 1 deletions

diff --git a/gpsutils.c b/gpsutils.c
index 3a8b02aa..b03c6387 100644
--- a/gpsutils.c
+++ b/gpsutils.c
@@ -5,7 +5,6 @@
 #include <math.h>
 #include <string.h>
 #include <stdarg.h>
-#define __USE_XOPEN
 #include <time.h>
 
 #include "gpsd.h"