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diff --git a/docs/building.md b/docs/building.md index d86b80205..8bc20acb3 100644 --- a/docs/building.md +++ b/docs/building.md @@ -47,6 +47,20 @@ cmake --build --preset release # to build from the CLI The `vs2022-dev` preset turns on features that makes debugging easy. +### WebAssembly build + +First do a native build of the `all-generators` target, so that you get the generator executables in a path like `build\generators\Debug\bin` under the +Slang source tree. + +For an [emscripten](https://emscripten.org) -based build targeting [WebAssembly](https://webassembly.org), run: +```bash +emcmake cmake -DSLANG_GENERATORS_PATH=%SLANG_SRC_PATH%\build\generators\Debug\bin --preset emscripten -G "Ninja" +cmake --build --preset emscripten --target slang +``` + +**Note:** `emcmake` is a `cmake` wrapper that comes with [`emsdk`](https://emscripten.org/docs/getting_started/downloads.html), it will wrap your `cmake` calls with setup options that add support for emscripten. +**Note:** If this fails, try running the command that `emcmake` outputs, directly. + ## Testing ```bash |