Linking to a c static library

@kornel wrote up a really good article on how to create a *-sys crate, a crate which exposes raw bindings to a native library and sorts out all of the building + linking steps.

It's more targeted towards a project that is meant to be published and used by lots of people (e.g. bindings to popular libraries like libgit2 or libssh) so some of the steps and tips will be unnecessary for your use case, but you may find it enlightening.

Some other links: