Add a config file

Provide an example of how to copy non-source files into build
directory.

CMakeLists.txt

@@ -85,6 +85,10 @@ target_include_directories(exple_add_numbers PRIVATE
   "${COMMON_HEADER_DIR}"
   "${GRID_HEADER_DIR}")
 
+add_custom_command(TARGET exple_add_numbers POST_BUILD
+  COMMAND ${CMAKE_COMMAND} -E copy_directory
+  "${PROJECT_SOURCE_DIR}/exple-cmake-build/config-examples" "$<TARGET_FILE_DIR:exple_add_numbers>/config-examples")
+
 
 # set groups for better source representation in IDEs
 source_group("Common\\Sources" FILES "${COMMON_SOURCES}")

exple-cmake-build/config-examples/config.txt

+#This is a config file
\ No newline at end of file