build.rs

#[cfg(windows)]
fn make_lang_id(p: u16, s: u16) -> u16 {
    (s << 10) | p
}

fn main() {
    #[cfg(windows)]
    {
        let mut res = winres::WindowsResource::new();
        res.set("ProductVersion", mullvad_version::VERSION);
        res.set_icon("../dist-assets/icon.ico");
        res.set_language(make_lang_id(
            windows_sys::Win32::System::SystemServices::LANG_ENGLISH as u16,
            windows_sys::Win32::System::SystemServices::SUBLANG_ENGLISH_US as u16,
        ));
        res.compile().expect("Unable to generate windows resources");
    }
    let target_os = std::env::var("CARGO_CFG_TARGET_OS").expect("CARGO_CFG_TARGET_OS not set");

    // Enable DAITA by default on desktop
    println!("cargo::rustc-check-cfg=cfg(daita)");
    if let "linux" | "windows" | "macos" = target_os.as_str() {
        println!(r#"cargo::rustc-cfg=daita"#);
    }
}