fn main() {
    cc::Build::new()
        .cpp(true)
        .file("cpp/itwom3.0.cpp")
        .file("cpp/itwom_ffi.cpp")
        .flag_if_supported("-std=c++11")
        .flag_if_supported("-O3")
        .flag_if_supported("-ffast-math")
        .flag_if_supported("-fomit-frame-pointer")
        .warnings(false)
        .compile("itwom");

    // libbz2 is used by the SDF loader (FFI shim in src/sdf.rs). On this
    // machine libbz2-dev isn't installed system-wide, but miniconda ships it.
    // BZ2_BZ2_LIB_DIR can override; otherwise we probe common locations.
    if let Ok(dir) = std::env::var("BZ2_LIB_DIR") {
        println!("cargo:rustc-link-search=native={dir}");
    } else {
        for candidate in ["/home/cescobar/miniconda3/lib", "/usr/lib/x86_64-linux-gnu"] {
            if std::path::Path::new(candidate).join("libbz2.so").exists()
                || std::path::Path::new(candidate).join("libbz2.a").exists()
                || std::path::Path::new(candidate).join("libbz2.so.1.0").exists()
            {
                println!("cargo:rustc-link-search=native={candidate}");
                break;
            }
        }
    }
    println!("cargo:rustc-link-lib=dylib=bz2");

    println!("cargo:rerun-if-changed=cpp/itwom3.0.cpp");
    println!("cargo:rerun-if-changed=cpp/itwom_ffi.cpp");
    println!("cargo:rerun-if-env-changed=BZ2_LIB_DIR");
}