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doc(doc/make/emscripten): document Emscripten build

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Sebastian Ullrich
2018-04-30 18:17:16 +02:00
parent 6ef4806fca
commit 2e784cd6be
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doc/make/emscripten.md Normal file
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Compiling lean.js via Emscripten
--------------------------------
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
```bash
mkdir -p build/emscripten
cd build/emscripten
emconfigure cmake ../../src -DCMAKE_BUILD_TYPE=Emscripten
make lean_js_js lean_js_wasm
```
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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doc/make/index.md
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@@ -12,6 +12,7 @@ Platform-Specific Setup
- [Windows (msys2)](msys2.md)
- [Windows (Visual Studio)](msvc.md)
- [macOS](osx-10.9.md)
- [Emscripten: lean.js](emscripten.md)
Generic Build Instructions
--------------------------