use std::env;use std::path::PathBuf;const SETUP_BIN: &str = "codex-windows-sandbox-setup";const SETUP_MANIFEST: &str = "codex-windows-sandbox-setup.manifest";fn main() -> Result<(), String> {    println!("cargo:rerun-if-changed={SETUP_MANIFEST}");    if env::var("CARGO_CFG_TARGET_OS").as_deref() != Ok("windows") {        return Ok(());    }    let manifest_dir = env::var_os("CARGO_MANIFEST_DIR")        .ok_or_else(|| "CARGO_MANIFEST_DIR should be set for build scripts".to_string())?;    let manifest_path = PathBuf::from(manifest_dir).join(SETUP_MANIFEST);    let manifest_path = manifest_path.display();    // Keep this scoped to the setup helper so Codex binaries that link the    // library do not inherit any resource metadata from this package.    match (        env::var("CARGO_CFG_TARGET_ENV").as_deref(),        env::var("CARGO_CFG_TARGET_ABI").as_deref(),    ) {        (Ok("msvc"), _) => {            println!("cargo:rustc-link-arg-bin={SETUP_BIN}=/MANIFEST:EMBED");            println!("cargo:rustc-link-arg-bin={SETUP_BIN}=/MANIFESTINPUT:{manifest_path}");        }        (Ok("gnu"), Ok("llvm")) => {            println!("cargo:rustc-link-arg-bin={SETUP_BIN}=-Wl,-Xlink=/manifest:embed");            println!(                "cargo:rustc-link-arg-bin={SETUP_BIN}=-Wl,-Xlink=/manifestinput:{manifest_path}"            );        }        _ => {}    }    Ok(())}