dlib-face-recognition 0.3.1

Unofficial Rust wrappers to the C++ library dlib, face recognition tools
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fn is_debian() -> bool {
    cfg!(target_os = "linux")
        && ::sys_info::linux_os_release()
            .map(|os| os.id_like.map(|id| id == "debian").unwrap_or_default())
            .unwrap_or_default()
}

fn main() {
    let mut config = cpp_build::Config::new();
    println!("cargo:rerun-if-changed=./files");

    #[cfg(target_family = "windows")]
    {
        let root_dir = std::env::var("CARGO_MANIFEST_DIR").unwrap();
        let windows = std::path::PathBuf::from(root_dir)
            .join("external-libs")
            .join("windows");

        #[cfg(target_env = "gnu")]
        {
            config.flag("-Os");
            config.flag("-Wa,-mbig-obj");
        }

        println!("cargo:rustc-flags=-L {}", windows.display());

        println!("cargo:rustc-link-lib=blas");
        println!("cargo:rustc-link-lib=lapack");
        println!("cargo:rustc-link-lib=static=dlib");
    }

    #[cfg(not(target_family = "windows"))]
    {
        if is_debian() {
            println!("cargo:rustc-link-lib=blas");
        } else {
            println!("cargo:rustc-link-lib=cblas");
        }

        println!("cargo:rustc-link-lib=dlib");
        println!("cargo:rustc-link-lib=lapack");
    }

    if let Ok(paths) = std::env::var("DEP_DLIB_INCLUDE") {
        for path in std::env::split_paths(&paths) {
            config.include(path);
        }
    }
    config.flag("-std=c++14").build("src/lib.rs");
}