From 4423a5edada0accf4bac71d76365feab8aeb1df6 Mon Sep 17 00:00:00 2001
From: Tomoaki Teshima <tomoaki.teshima@gmail.com>
Date: Sat, 23 Jul 2016 23:11:57 +0900
Subject: [PATCH] fix build error   * NAN is not defined on some platform

---
 modules/core/test/test_arithm.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/modules/core/test/test_arithm.cpp b/modules/core/test/test_arithm.cpp
index 1289b73e3..f946b7b8b 100644
--- a/modules/core/test/test_arithm.cpp
+++ b/modules/core/test/test_arithm.cpp
@@ -1902,6 +1902,11 @@ TEST(Normalize, regression_5876_inplace_change_type)
     EXPECT_EQ(0, cvtest::norm(m, result, NORM_INF));
 }
 
+#ifndef NAN
+#include <limits> // numeric_limits<T>::quiet_NaN()
+#define NAN std::numeric_limits<float>::quiet_NaN()
+#endif
+
 TEST(MinMaxLoc, regression_4955_nans)
 {
     cv::Mat one_mat(2, 2, CV_32F, cv::Scalar(1));