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Relicensing wasm-tools and this repository's crates #1637

@alexcrichton

Description

@alexcrichton

Relicensing wasm-tools

Hello everyone! This issue is here to serve as a checklist for relicensing the wasm-tools repository and all crates that it contains.

  • Before: Apache-2.0 WITH LLVM-exception
  • After: Apache-2.0 WITH LLVM-exception OR Apache-2.0 OR MIT.

In other words this issue is adding two other licensing options to the crate, the Rust standard Apache-2.0 OR MIT option. Everyone who has contributed to this repository is cc'd below with a checkbox tracking their approval status.

If you approve of this license change it's requested you leave a comment along the lines of "I approve this license change" and your checkbox will be filled in by a maintainer.

Why change licenses?

The original choice of Apache-2.0 WITH LLVM-exception for this repository matches the licensing decision of Wasmtime itself and was intended to be compatible with it. Some crates in this repository, however, would like to be integrated into upstream Rust itself. For example the wasmparser and wasm-encoder crates are already part of the Rust compiler. Currently the Rust compiler has an exception which allows these crates despite not having the Rust-standard Apache-2.0 OR MIT license. The goal of this issue is to make integration in the upstream Rust compiler easier by ensuring that the license is fully compatible with Rust's existing license.

Contributors

Contributors to wasm-tools are generated with git shortlog --summary --numbered --email as of 28e96f680752c999f296e5f9d7d31a6be66112f5.

Other contributors

As you can see, we have a long list of contributors to wasm-tools. However, it's not even the entire list! Lots of other people helped us by providing small tweaks to the code, fixing grammar issues in documentation, and similar contributions. While these kinds of contributions are extremely valuable, they aren't covered by copyrights, and thus we don't require sign-off by the authors of these contributions.

We do want to use this opportunity to list everyone who contributed to wasm-tools in whichever way though, so here's the list of people we don't need sign-off from, including links to their contributions:

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