fix build on MacOS

Author: PeterPetrik

src/core/qgsopenclutils.h

@@ -19,9 +19,18 @@
 #define SIP_NO_FILE
 
 #define CL_HPP_ENABLE_EXCEPTIONS
+
+#include <QtGlobal>
+#ifdef Q_OS_MAC
+#define CL_HPP_MINIMUM_OPENCL_VERSION 120
+#define CL_HPP_TARGET_OPENCL_VERSION 120
+#define CL_TARGET_OPENCL_VERSION 120
+#else
 #define CL_USE_DEPRECATED_OPENCL_1_1_APIS
 #define CL_HPP_TARGET_OPENCL_VERSION 220
 #define CL_TARGET_OPENCL_VERSION 200
+#endif
+
 #include <CL/cl2.hpp>
 
 #include "qgis_core.h"