From 56d71a429e4a45b5454e1bdd88e211457e8f9356 Mon Sep 17 00:00:00 2001
From: Mizuho <dummy32@hotmail.co.jp>
Date: Sat, 19 Nov 2016 08:17:05 +0900
Subject: [PATCH] added static specifer in green_metrics.cpp

---
 features/frameworks/greentea-client/source/greentea_metrics.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/features/frameworks/greentea-client/source/greentea_metrics.cpp b/features/frameworks/greentea-client/source/greentea_metrics.cpp
index 2491a0de91..31e9ec3592 100644
--- a/features/frameworks/greentea-client/source/greentea_metrics.cpp
+++ b/features/frameworks/greentea-client/source/greentea_metrics.cpp
@@ -34,7 +34,7 @@ typedef struct {
 } thread_info_t;
 
 // Mutex to protect "buf"
-SingletonPtr<Mutex> mutex;
+static SingletonPtr<Mutex> mutex;
 #if defined(MBED_STACK_STATS_ENABLED) && MBED_STACK_STATS_ENABLED
 static char buf[128];
 static SingletonPtr<CircularBuffer<thread_info_t, THREAD_BUF_COUNT> > queue;