build.rs

/**
 * Copyright © 2025 NguyenDuck
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <https://www.gnu.org/licenses/>.
 */
////////////////////////////////////////////////////////////////////////
use std::{
    env,
    path::{Path, PathBuf},
};

fn main() {
    if env::var("CARGO_CFG_TARGET_OS").unwrap() == "android" {
        android();
    }
}

fn android() {
    println!("cargo:rustc-link-lib=c++_shared");

    if let Ok(output_path) = env::var("CARGO_NDK_OUTPUT_PATH") {
        let sysroot_libs_path = PathBuf::from(env::var_os("CARGO_NDK_SYSROOT_LIBS_PATH").unwrap());
        let lib_path = sysroot_libs_path.join("libc++_shared.so");
        std::fs::copy(
            lib_path,
            Path::new(&output_path)
                .join(&env::var("CARGO_NDK_ANDROID_TARGET").unwrap())
                .join("libc++_shared.so"),
        )
        .unwrap();
    }
}