Tests/RunCMake/Codegen/no-codegen-2.cmake

add_executable(main
    main.c
)

add_custom_command(
  OUTPUT generated.h
  COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_SOURCE_DIR}/generated.h.in
                                   ${CMAKE_CURRENT_BINARY_DIR}/generated.h
  # no CODEGEN
)

add_custom_target(h_creator DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/generated.h)

add_dependencies(main h_creator)