main.rs

#![cfg_attr(any(target_os = "ios", target_os = "android"), no_main]

fn main() {
    main2();
}

#[cfg(any(target_os = "ios", target_os = "android"))]
#[no_mangle]
#[allow(non_snake_case)]
pub extern "C" fn SDL_main() -> i32 {
    main2();
    0
}

fn main2() {
  // ...
}