Clone on Linux or Mac:

Extra steps for Windows users:

1. (otherwise symlinks would require administrator privileges).
2. Set core.symlinks=true before the checkout:

   git config --global core.symlinks true
   git clone --recurse-submodules https://github.com/denoland/deno.git

Update or Install Rust. Check that Rust installed/updated correctly:

rustup target add wasm32-wasi

However if you want to build Deno and V8 from source code:

V8_FROM_SOURCE=1 cargo build -vv

When building V8 from source, there are more dependencies:

. Ensure that a suffix-less python/ exists in your PATH and it refers to Python 2, not 3.

For Linux users glib-2.0 development files must also be installed. (On Ubuntu, run apt install libglib2.0-dev.)

For Windows users:

1. Enable “Debugging Tools for Windows”. Go to “Control Panel” → “Programs” → “Programs and Features” → Select “Windows Software Development Kit - Windows 10” → “Change” → “Change” → Check “Debugging Tools For Windows” → “Change” → “Finish”. Or use: (Notice: it will download the files, you should install file manually.)

See rusty_v8’s README for more details about the V8 build.