From bab80e7ccae70e11d5782d86cbbba1f93a3e8363 Mon Sep 17 00:00:00 2001
From: Milo Yip <miloyip@gmail.com>
Date: Wed, 20 Jan 2016 02:01:14 +0800
Subject: [PATCH] Fix clang warning

---
 test/unittest/writertest.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/test/unittest/writertest.cpp b/test/unittest/writertest.cpp
index 24a2c6c..197411c 100644
--- a/test/unittest/writertest.cpp
+++ b/test/unittest/writertest.cpp
@@ -376,6 +376,7 @@ TEST(Writer, InvalidEventSequence) {
     }
 }
 
+extern double zero; // clang -Wmissing-variable-declarations
 double zero = 0.0;	// Use global variable to prevent compiler warning
 
 TEST(Writer, NaN) {