fn main() {
    let path = cmake::Config::new("GmSSL-3.1.0")
        .define("ENABLE_SM2_EXTS", "ON")
        .define("BUILD_SHARED_LIBS", "OFF")
        .build();
    println!("cargo:rustc-link-search=native={}/lib", path.display());
println!("cargo:rustc-link-lib=static=gmssl");
}