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From: Paul Zander <negril.nx+gentoo@gmail.com>
Find the system opencl and inject the include dir.
diff --git a/cmake/OpenCVDetectOpenCL.cmake b/cmake/OpenCVDetectOpenCL.cmake
index 100fb0e..ab30bf9 100644
--- a/cmake/OpenCVDetectOpenCL.cmake
+++ b/cmake/OpenCVDetectOpenCL.cmake
@@ -1,3 +1,8 @@
+find_package(OpenCLHeaders REQUIRED)
+if(NOT TARGET OpenCL::Headers)
+ message(FATAL_ERROR "OpenCL::Headers not found")
+endif()
+
set(OPENCL_FOUND ON CACHE BOOL "OpenCL library is found")
if(APPLE)
set(OPENCL_LIBRARY "-framework OpenCL" CACHE STRING "OpenCL library")
@@ -5,6 +10,7 @@ if(APPLE)
else()
set(OPENCL_LIBRARY "" CACHE STRING "OpenCL library")
set(OPENCL_INCLUDE_DIR "${OpenCV_SOURCE_DIR}/3rdparty/include/opencl/1.2" CACHE PATH "OpenCL include directory")
+ get_target_property(OPENCL_INCLUDE_DIR OpenCL::Headers INTERFACE_INCLUDE_DIRECTORIES)
endif()
mark_as_advanced(OPENCL_INCLUDE_DIR OPENCL_LIBRARY)
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