Copy header files to output directory

core/CMakeLists.txt

@@ -56,6 +56,9 @@ nice_add_unittests()
     ARCHIVE DESTINATION ${OPENCV_LIB_INSTALL_PATH} COMPONENT main
     )
 
+  install(DIRECTORY ./ DESTINATION include
+    FILES_MATCHING PATTERN "*.h")
+ 
 #   # only "public" headers need to be installed
 #   if(OPENCV_MODULE_${the_module}_HEADERS AND ";${OPENCV_MODULES_PUBLIC};" MATCHES ";${the_module};")
 #     foreach(hdr ${OPENCV_MODULE_${the_module}_HEADERS})
@@ -64,4 +67,4 @@ nice_add_unittests()
 #         install(FILES ${hdr} DESTINATION "${OPENCV_INCLUDE_INSTALL_PATH}/${CMAKE_MATCH_1}" COMPONENT main)
 #       endif()
 #     endforeach()
-#   endif()
+#   endif()