From 1cdef09698486d7f2593885f25be6f55982530d6 Mon Sep 17 00:00:00 2001
From: Aashish chaddha <aashish.chaddha@arm.com>
Date: Wed, 8 Aug 2018 15:23:19 -0500
Subject: [PATCH] ifndef some macros to allow overriding during compilation or
 be able to get some warnings during redefinition

---
 .../frameworks/greentea-client/greentea-client/test_env.h     | 4 ++++
 features/unsupported/tests/mbed/env/test_env.h                | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/features/frameworks/greentea-client/greentea-client/test_env.h b/features/frameworks/greentea-client/greentea-client/test_env.h
index 6aa2617c57..672874d29a 100644
--- a/features/frameworks/greentea-client/greentea-client/test_env.h
+++ b/features/frameworks/greentea-client/greentea-client/test_env.h
@@ -33,8 +33,12 @@
 /**
  *  Auxilary macros
  */
+#ifndef NL
 #define NL "\n"
+#endif
+#ifndef RCNL
 #define RCNL "\r\n"
+#endif
 
 /**
  *  Auxilary macros to keep mbed-drivers compatibility with utest before greentea-client
diff --git a/features/unsupported/tests/mbed/env/test_env.h b/features/unsupported/tests/mbed/env/test_env.h
index bfb2c44d2d..6a390dc551 100644
--- a/features/unsupported/tests/mbed/env/test_env.h
+++ b/features/unsupported/tests/mbed/env/test_env.h
@@ -4,8 +4,12 @@
 #include <stdio.h>
 #include "mbed.h"
 
+#ifndef NL
 #define NL "\n"
+#endif
+#ifndef RCNL
 #define RCNL "\r\n"
+#endif
 
 // Const strings used in test_end
 extern const char* TEST_ENV_START;