Allow setting of path

[avantgardnerio]

I am currently receiving the error:

error while loading shared libraries: libjvm.so: cannot open shared object file: No such file or directory

I understand I can manually set an LD_LIBRARY_PATH to prevent that, however this is burdensome for developers. I would much prefer to:

    if env::var("LD_LIBRARY_PATH").is_err() {
        if let Ok(path) = which("java") {
            let lib = path.canonicalize().unwrap().parent().unwrap().parent().unwrap().join("lib").join("server");
            println!("lib={}", lib.display());
            env::set_var("LD_LIBRARY_PATH", lib);
        }
    }

But even when I call that code as the first line of my test, I see I get the error before my code gets hit. Is it possible fs-hdfs3 is trying to load libraries in a lazy_static block or something? Is there another option for me to make this zero-setup for the devs on my team?

Thanks!

[yahoNanJing]

The dependent path may vary on different OS. Therefore, I prefer to set it manually rather than in code.