function(add_uncrustify_format)
  list(GET ARGN 0 _target)
  set(_sources ${ARGN})
  list(REMOVE_AT _sources 0)

  find_program(UNCRUSTIFY_EXE NAMES uncrustify)
  if(UNCRUSTIFY_EXE)
    if(NOT TARGET uncrustify-format)
      add_custom_target(uncrustify-format)
    endif()
    add_custom_target(uncrustify-format-${_target}
      COMMAND ${UNCRUSTIFY_EXE} -lCPP --replace --no-backup ${_sources})
    add_dependencies(uncrustify-format uncrustify-format-${_target})
  else()
    message(WARNING "Uncrustify is not found")
  endif()
endfunction()