From 4bfdd973a4ed22e0dd001c0aa353e5d656587924 Mon Sep 17 00:00:00 2001
From: Andrew Tridgell <andrew@tridgell.net>
Date: Mon, 14 Sep 2020 13:40:07 +1000
Subject: [PATCH] AP_MSP: fixed build warnings for MSP with AP_Periph

---
 libraries/AP_MSP/msp.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/libraries/AP_MSP/msp.h b/libraries/AP_MSP/msp.h
index 0db56b0308..074dc50d53 100644
--- a/libraries/AP_MSP/msp.h
+++ b/libraries/AP_MSP/msp.h
@@ -1,9 +1,16 @@
 #pragma once
 
+#include <AP_HAL/AP_HAL.h>
+
 #ifndef HAL_MSP_ENABLED
 #define HAL_MSP_ENABLED !HAL_MINIMIZE_FEATURES
 #endif
 
+// define for enabling MSP sensor drivers
+#ifndef HAL_MSP_SENSORS_ENABLED
+#define HAL_MSP_SENSORS_ENABLED defined(HAL_MSP_ENABLED) && !HAL_MINIMIZE_FEATURES && !defined(HAL_BUILD_AP_PERIPH)
+#endif
+
 #include <AP_HAL/UARTDriver.h>
 #include <AP_SerialManager/AP_SerialManager.h>