Cross-compile a Rust application from Linux to Windows

Question

Basically I'm trying to compile the simplest code to Windows while I am developing on Linux.

fn main() {
    println!("Hello, and bye.")
}

I found these commands by searching the internet:

rustc --target=i686-w64-mingw32-gcc  main.rs
rustc --target=i686_pc_windows_gnu -C linker=i686-w64-mingw32-gcc  main.rs

Sadly, none of them work. It gives me an error about the std crate missing

$ rustc --target=i686_pc_windows_gnu -C linker=i686-w64-mingw32-gcc  main.rs 

main.rs:1:1: 1:1 error: can't find crate for `std`
main.rs:1 fn main() {
          ^
error: aborting due to previous error

Is there a way to compile code on Linux that will run on Windows?

Answer 1

Other answers, while technically correct, are more difficult than they need to be. There's no need to use rustc (in fact it's discouraged, just use cargo), you only need rustup and cargo.

Add the target (you can also change this for whatever target you're cross compiling for):

rustup target add x86_64-pc-windows-gnu
rustup toolchain install stable-x86_64-pc-windows-gnu

You can build your crate easily with:

cargo build --target x86_64-pc-windows-gnu

No need for messing around with ~/.cargo/config or anything else.

EDIT: Just wanted to add that while you can use the above it can also sometimes be a headache. I wanted to add that the rust tools team also maintains a project called cross: https://github.com/rust-embedded/cross This might be another solution that you want to look into