# Using a Library

To link a crate to this new library you may use `rustc`'s `--extern` flag. All
of its items will then be imported under a module named the same as the library.
This module generally behaves the same way as any other module.

```rust,ignore
// extern crate rary; // May be required for Rust 2015 edition or earlier

fn main() {
    rary::public_function();

    // Error! `private_function` is private
    //rary::private_function();

    rary::indirect_access();
}
```

```txt
# Where library.rlib is the path to the compiled library, assumed that it's
# in the same directory here:
$ rustc executable.rs --extern rary=library.rlib && ./executable
called rary's `public_function()`
called rary's `indirect_access()`, that
> called rary's `private_function()`
```