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# 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.

    // 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();
    }

    # 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()`