fn main() {
    //println!("cargo:rerun-if-env-changed=CARGO_CFG_TARGET_ENV");

    #[cfg(feature = "occlum")]
    {
        let target = std::env::var("CARGO_CFG_TARGET_ENV").unwrap_or_default();
        let dcap_lib_path = match target.as_str() {
            "musl" => "/opt/occlum/toolchains/dcap_lib/musl",
            _ => "/opt/occlum/toolchains/dcap_lib/glibc", // gnu, msvc, sgx...
        };

        // Doesn't use standard C library, safe to compile with both musl and glibc
        println!("cargo:rustc-link-search=crate=/opt/intel/sgxsdk/lib64");
        println!("cargo:rustc-link-search=crate={}", dcap_lib_path);

        // Cargo will look for `libocclum_dcap.a` and `libsgx_tservice.a`
        println!("cargo:rustc-link-lib=static:+whole-archive=occlum_dcap");
        println!("cargo:rustc-link-lib=static:+whole-archive=sgx_tservice");
    }

    #[cfg(feature = "tonic")]
    tonic_build::configure()
        .build_server(true)
        .compile_protos(&["examples/echo.proto"], &["examples"])
        .unwrap_or_else(|e| panic!("Failed to compile protos {:?}", e));
}