--- a/src/joystick/SDL_joystick.c	Tue Dec 11 12:07:06 2012 -0500
+++ b/src/joystick/SDL_joystick.c	Tue Dec 11 10:49:54 2012 -0800
@@ -465,6 +465,9 @@
     }
 
     /* Update internal joystick state */
+    if (value == joystick->axes[axis]) {
+        return 0;
+    }
     joystick->axes[axis] = value;
 
     /* Post the event, if desired */