fn main() -> Result<(), Box> { embuild::build::CfgArgs::output_propagated("ESP_IDF")?; // Will not be available when built with a CMake-first or a PIO-first build // We need to output these only when building the examples' binaries anyway if let Ok(args) = embuild::build::LinkArgs::try_from_env("ESP_IDF") { args.output(); } Ok(()) }