From a56f07b74d655df46084bdbd5762d3127fde0fed Mon Sep 17 00:00:00 2001
From: Andrew Tridgell <andrew@tridgell.net>
Date: Sat, 7 Nov 2020 09:30:01 +1100
Subject: [PATCH] AP_Math: allow build without other headers for vector2.h

---
 libraries/AP_Math/vector2.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libraries/AP_Math/vector2.h b/libraries/AP_Math/vector2.h
index 00fda1aaeb..afd824a042 100644
--- a/libraries/AP_Math/vector2.h
+++ b/libraries/AP_Math/vector2.h
@@ -29,6 +29,10 @@
 ****************************************/
 #pragma once
 
+#ifndef MATH_CHECK_INDEXES
+#define MATH_CHECK_INDEXES 0
+#endif
+
 #include <cmath>
 #include <AP_Common/AP_Common.h>