From b499cd1b597b74a0d2032828287d1bd202b3f560 Mon Sep 17 00:00:00 2001
From: Andrew Tridgell <andrew@tridgell.net>
Date: Mon, 5 Jan 2015 07:04:27 +1100
Subject: [PATCH] AP_AHRS: fixed examples build

using a relative include works as the object is just passed through,
not used, in this header
---
 libraries/AP_AHRS/AP_AHRS.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libraries/AP_AHRS/AP_AHRS.h b/libraries/AP_AHRS/AP_AHRS.h
index 3ce6c2ba07..29fb7ed46d 100644
--- a/libraries/AP_AHRS/AP_AHRS.h
+++ b/libraries/AP_AHRS/AP_AHRS.h
@@ -26,12 +26,13 @@
 #include <inttypes.h>
 #include <AP_Compass.h>
 #include <AP_Airspeed.h>
-#include <AP_OpticalFlow.h>
 #include <AP_GPS.h>
 #include <AP_InertialSensor.h>
 #include <AP_Baro.h>
 #include <AP_Param.h>
 
+#include "../AP_OpticalFlow/AP_OpticalFlow.h"
+
 // Copter defaults to EKF on by default, all others off
 #if APM_BUILD_TYPE(APM_BUILD_ArduCopter)
 #define AHRS_EKF_USE_DEFAULT    1