use std::env;

#[cfg(windows)]
const OPENNI2_DIR64: &str = "OPENNI2_LIB64";
#[cfg(windows)]
const OPENNI2_DIR: &str = "OPENNI2_LIB";
#[cfg(not(windows))]
const OPENNI2_DIR64: &str = "OPENNI2_REDIST64";
#[cfg(not(windows))]
const OPENNI2_DIR: &str = "OPENNI2_REDIST";

fn main() {
    let openni2_dir = env::var(OPENNI2_DIR)
        .or(env::var(OPENNI2_DIR64))
        .expect(&format!(
            "Required env var for dynamic libraries missing. Expected `{}` or `{}`.",
            OPENNI2_DIR, OPENNI2_DIR64
        ));
    let openni2_libname = env::var("OPENNI2_LIBNAME").unwrap_or("OpenNI2".to_string());

    println!("cargo:rustc-link-search=native={}", openni2_dir);
    println!("cargo:rustc-link-lib=dylib={}", openni2_libname);
}