From dafaa2efc8a496df9eb518c3befdad08826d2189 Mon Sep 17 00:00:00 2001
From: Andrew Tridgell <tridge@samba.org>
Date: Mon, 19 Nov 2012 09:04:03 +1100
Subject: [PATCH] SITL: disable optical flow on the desktop build

it doesn't work yet, as no sensor emulator is available
---
 ArduCopter/config.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/ArduCopter/config.h b/ArduCopter/config.h
index 8ba7e73097..40a68f599c 100644
--- a/ArduCopter/config.h
+++ b/ArduCopter/config.h
@@ -83,6 +83,10 @@
  # define TOY_MIXER      TOY_LINEAR_MIXER
 #endif
 
+// optical flow doesn't work in SITL yet
+#ifdef DESKTOP_BUILD
+# define OPTFLOW DISABLED
+#endif
 
 
 //////////////////////////////////////////////////////////////////////////////