A way to silence warnings (CMake)

[metrapoliten]

I want to silence warnings from slint_generated_*.cpp files and files in _deps folder. To solve the problem, I did the following.

1. Provide SYSTEM argument in FetchContent_Declare() to silence warnings from files in _deps folder.
2. To silence warnings from generated file in CMakeLists.txt:

set_source_files_properties("slint_generated_ui_1.cpp" PROPERTIES COMPILE_OPTIONS "-w")

My compiler flags are declared in CMakePresets.json. Is there a better way to silence warnings?