suppress warning

Signed-off-by: Mamoru Sobue <mamoru.sobue@tier4.jp>

common/tier4_traffic_light_rviz_plugin/CMakeLists.txt

@@ -3,7 +3,7 @@ project(tier4_traffic_light_rviz_plugin)
 
 find_package(autoware_cmake REQUIRED)
 
-# NOTE(Mamoru Sobue): workaround to avoid 'missing tinyxml2::tinyxml2'
+# TODO(Mamoru Sobue): workaround to avoid 'missing tinyxml2::tinyxml2'
 # From tinyxml2_vendor/cmake/Modules/FindTinyXML2.cmake
 find_package(TinyXML2 CONFIG QUIET)
 if(NOT TinyXML2_FOUND)
@@ -27,8 +27,6 @@ set(QT_LIBRARIES Qt5::Widgets)
 set(CMAKE_AUTOMOC ON)
 set(CMAKE_INCLUDE_CURRENT_DIR ON)
 add_definitions(-DQT_NO_KEYWORDS)
-add_compile_options(-Wno-error=deprecated-copy -Wno-error=pedantic)
-
 ament_auto_add_library(${PROJECT_NAME} SHARED
   src/traffic_light_publish_panel.cpp
 )
@@ -37,6 +35,8 @@ target_link_libraries(${PROJECT_NAME}
   ${QT_LIBRARIES}
 )
 
+target_compile_options(${PROJECT_NAME} PUBLIC -Wno-error=deprecated-copy -Wno-error=pedantic)
+
 # Export the plugin to be imported by rviz2
 pluginlib_export_plugin_description_file(rviz_common plugins/plugin_description.xml)