diff -ru kismet-2007-10-R1/gpsd.cc kismet-2007-10-R1-fixed/gpsd.cc
--- kismet-2007-10-R1/gpsd.cc	2007-09-15 09:14:00.000000000 -0700
+++ kismet-2007-10-R1-fixed/gpsd.cc	2007-11-06 01:46:12.000000000 -0800
@@ -323,7 +323,7 @@
 		if (ty == 0) {
 			dir = 0.0;
 		} else {
-			dir = atan(tx / ty);
+			dir = atan2(tx,ty);
 		}
 
 		if (!finite(dir))