From 21c33b60dbee787e98cf69bfe2f539e85eaf2c9c Mon Sep 17 00:00:00 2001
From: "Dr.-Ing. Amilcar Do Carmo Lucas" <amilcar.lucas@iav.de>
Date: Wed, 14 Mar 2018 21:18:23 +0100
Subject: [PATCH] Copter: Remove DRIFT mode code if DRIFT mode is disabled.

---
 ArduCopter/mode_drift.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/ArduCopter/mode_drift.cpp b/ArduCopter/mode_drift.cpp
index 6e1eb451986..43d8b107e14 100644
--- a/ArduCopter/mode_drift.cpp
+++ b/ArduCopter/mode_drift.cpp
@@ -1,5 +1,7 @@
 #include "Copter.h"
 
+#if MODE_DRIFT_ENABLED == ENABLED
+
 /*
  * Init and run calls for drift flight mode
  */
@@ -124,3 +126,4 @@ float Copter::ModeDrift::get_throttle_assist(float velz, float pilot_throttle_sc
     
     return constrain_float(pilot_throttle_scaled + thr_assist, 0.0f, 1.0f);
 }
+#endif