build.rs

fn main() {
    // it seems TCTIs are loaded dynamically, and if you choose to static link them,
    // you may link only one without "multiple definition" linker errors.
    // So we choose `device` by default and `swtpm` for CI tests.
    let static_tcti = option_env!("TPM_LUKS_BUILD_STATIC_TCTI").unwrap_or("device");
    if let Some(build_static) = option_env!("TPM_LUKS_BUILD_STATIC") {
        if matches!(
            build_static.to_lowercase().as_ref(),
            "1" | "y" | "yes" | "true"
        ) {
            println!("cargo:rustc-link-arg=-l:libc.a");
            println!("cargo:rustc-link-arg=-l:libtss2-tcti-{}.a", static_tcti);
            println!("cargo:rustc-link-lib=static=crypto");
            println!("cargo:rustc-link-lib=static=cryptsetup");
            println!("cargo:rustc-link-lib=static=devmapper");
            println!("cargo:rustc-link-lib=static=json-c");
            println!("cargo:rustc-link-lib=static=ssl");
            println!("cargo:rustc-link-lib=static=tss2-esys");
            println!("cargo:rustc-link-lib=static=tss2-mu");
            println!("cargo:rustc-link-lib=static=tss2-sys");
            println!("cargo:rustc-link-lib=static=uuid");
            println!("cargo:rustc-link-search=/usr/lib");
            println!("cargo:rustc-link-search=/usr/local/ssl/lib");
        }
    }
}