Docker container with emsdk installed.
We can use this Docker image to build C/C++ files without the need to setup Emscripten on the host machine.
Put the below script in your package.json
scripts
docker run -it --rm -u $(id -u):$(id -g) -v $PWD:/src -w /src tuananh/emsdk emcc -O3 src/xxhash.c -s WASM=1 -s SIDE_MODULE=1 -o src/xxhash.wasm
In this example, suppose our project has a src
folder with a C file xxhash.c
in it.
What we do here is that we will mount the src
folder into the container's /src
folder, compile
it the .wasm
there in the container and output it back to the host's src
folder.
"scripts": {
"build": "docker run -it --rm -u $(id -u):$(id -g) -v $PWD:/src -w /src tuananh/emsdk emcc -O3 src/xxhash.c -s WASM=1 -s SIDE_MODULE=1 -o src/xxhash.wasm",
"test": "echo \"Error: no test specified\" && exit 1"
},
and yarn build
. BAM!! your .wasm
file is there in the src
folder.