12 lines
676 B
Markdown
12 lines
676 B
Markdown
# Compiling lean.js via Emscripten
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First install Emscripten via your distribution's package manager or [download and install it](https://kripken.github.io/emscripten-site/docs/getting_started/downloads.html) yourself. Then build asm.js and WebAssembly binaries using
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```bash
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mkdir -p build/emscripten
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cd build/emscripten
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emconfigure cmake ../../src -DCMAKE_BUILD_TYPE=Emscripten
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make lean_js_js lean_js_wasm
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```
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This will produce files `lean_js_js.js`, `lean_js_wasm.js`, and `lean_js_wasm.wasm` in `shell/`, which you can e.g. copy to the `dist/` directory in [lean-web-editor](https://github.com/leanprover/lean-web-editor) instead of calling `./fetch_lean_js.sh` there.
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