From c5bf15e009c79cf1470c3d99a1059220a2938d05 Mon Sep 17 00:00:00 2001
From: Alexander Alekhin <alexander.a.alekhin@gmail.com>
Date: Sat, 30 Jan 2021 11:32:27 +0000
Subject: [PATCH] build: fix cv2.cpp compilation

---
 modules/core/include/opencv2/core/utils/tls.hpp | 4 +++-
 modules/python/src2/cv2.cpp                     | 3 ++-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/modules/core/include/opencv2/core/utils/tls.hpp b/modules/core/include/opencv2/core/utils/tls.hpp
index b5f1138593..c0d2962cb8 100644
--- a/modules/core/include/opencv2/core/utils/tls.hpp
+++ b/modules/core/include/opencv2/core/utils/tls.hpp
@@ -5,7 +5,9 @@
 #ifndef OPENCV_UTILS_TLS_HPP
 #define OPENCV_UTILS_TLS_HPP
 
-#include <opencv2/core/utility.hpp>
+#ifndef OPENCV_CORE_UTILITY_H
+#error "tls.hpp must be included after opencv2/core/utility.hpp or opencv2/core.hpp"
+#endif
 
 namespace cv {
 
diff --git a/modules/python/src2/cv2.cpp b/modules/python/src2/cv2.cpp
index 0a986c1a44..f0dcc38d0f 100644
--- a/modules/python/src2/cv2.cpp
+++ b/modules/python/src2/cv2.cpp
@@ -31,13 +31,14 @@
 #define NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION
 #include <numpy/ndarrayobject.h>
 
+#include "opencv2/opencv_modules.hpp"
+#include "opencv2/core.hpp"
 #include "opencv2/core/utils/configuration.private.hpp"
 #include "opencv2/core/utils/logger.hpp"
 #include "opencv2/core/utils/tls.hpp"
 
 #include "pyopencv_generated_include.h"
 #include "opencv2/core/types_c.h"
-#include "opencv2/opencv_modules.hpp"
 #include "pycompat.hpp"
 #include <map>