enable MORE warnings

src/drivers/CMakeLists.txt

@@ -3,3 +3,4 @@ idf_component_register(
   "playback.cpp" "display.cpp" "display-init.cpp" 
   INCLUDE_DIRS "include"
   REQUIRES "esp_adc_cal" "fatfs" "audio_pipeline" "audio_stream" "result" "lvgl")
+target_compile_options(${COMPONENT_LIB} PRIVATE ${EXTRA_WARNINGS})

src/main/CMakeLists.txt

@@ -1,3 +1,4 @@
 idf_component_register(
   SRCS "main.cpp"
   REQUIRES "drivers")
+target_compile_options(${COMPONENT_LIB} PRIVATE ${EXTRA_WARNINGS})