3 `rustc` is a cross-compiler by default. This means that you can use any compiler to build for any
4 architecture. The list of *targets* are the possible architectures that you can build for.
6 To see all the options that you can set with a target, see the docs
7 [here](https://doc.rust-lang.org/nightly/nightly-rustc/rustc_back/target/struct.Target.html).
9 To compile to a particular target, use the `--target` flag:
12 $ rustc src/main.rs --target=wasm32-unknown-unknown