Creating the Rust project

First, follow the instructions on the Usage section of cargo-xcode. The instructions that follow are quoted from there, but keep in mind that it might have become outdated.

Ensure that these lines are present in your $crate/Cargo.toml:

[lib]
crate-type = ["lib", "staticlib", "cdylib"]

where

• lib is required for non-library targets, such as tests and benchmarks
• staticlib is required for iOS
• cdylib for all other platforms

Configure this to suit your needs. Then run this command in $crate:

cargo xcode

This will generate a $crate/$crate.xcodeproj that can be imported into other Xcode projects. You only have to do this once per crate. Don't open the project yet; we need to configure it through the parent projects first.