Since no one stepped forward, I dropped support in PEP 11: wasm32-unknown-emscripten is no longer supported by brettcannon · Pull Request #3612 · python/peps · GitHub . I also opened Add error to autoconf when building under `wasm32-unknown-emscripten` · Issue #113632 · python/cpython · GitHub to track autoconf raising an error when run for wasm32-unknown-emscripten.
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