From 66476070a58714f0579e785a6eb6552ce72951cc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C5=81ukasz=20Duda?= <lukasz.duda@nordicsemi.no>
Date: Fri, 1 Feb 2019 18:26:33 +0100
Subject: [PATCH] [toolchain] define __COUNTER__ for keil compiler (#3545)

---
 src/core/utils/static_assert.hpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/core/utils/static_assert.hpp b/src/core/utils/static_assert.hpp
index 6ed9fbff3..de25c704a 100644
--- a/src/core/utils/static_assert.hpp
+++ b/src/core/utils/static_assert.hpp
@@ -36,6 +36,13 @@
 
 #ifdef __cplusplus
 
+/**
+ * Some compilers such as Keil MDK-ARM does not support __COUNTER__ macro.
+ */
+#ifndef __COUNTER__
+#define __COUNTER__ __LINE__
+#endif
+
 namespace ot {
 
 template <int> struct StaticAssertError;