From 146be78390013a2ac46be0c8a4087548790d00ef Mon Sep 17 00:00:00 2001
From: Alexander Alekhin <alexander.alekhin@intel.com>
Date: Thu, 31 Aug 2017 14:52:36 +0300
Subject: [PATCH] cmake: cl2cpp change main OUTPUT to .hpp file

To reduce number of unnecessary rebuilds on updates of OpenCL kernels
---
 cmake/OpenCVModule.cmake | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cmake/OpenCVModule.cmake b/cmake/OpenCVModule.cmake
index f560accfbd..5cb7aecb09 100644
--- a/cmake/OpenCVModule.cmake
+++ b/cmake/OpenCVModule.cmake
@@ -720,7 +720,7 @@ macro(ocv_glob_module_sources)
   if(cl_kernels)
     set(OCL_NAME opencl_kernels_${name})
     add_custom_command(
-      OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${OCL_NAME}.cpp" "${CMAKE_CURRENT_BINARY_DIR}/${OCL_NAME}.hpp"
+      OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${OCL_NAME}.hpp" "${CMAKE_CURRENT_BINARY_DIR}/${OCL_NAME}.cpp"
       COMMAND ${CMAKE_COMMAND} "-DMODULE_NAME=${name}" "-DCL_DIR=${CMAKE_CURRENT_LIST_DIR}/src/opencl" "-DOUTPUT=${CMAKE_CURRENT_BINARY_DIR}/${OCL_NAME}.cpp" -P "${OpenCV_SOURCE_DIR}/cmake/cl2cpp.cmake"
       DEPENDS ${cl_kernels} "${OpenCV_SOURCE_DIR}/cmake/cl2cpp.cmake")
     ocv_source_group("Src\\opencl\\kernels" FILES ${cl_kernels})