git clone https://github.com/juj/emsdk.git
cd emsdk
./emsdk install --build=Release sdk-incoming-64bit binaryen-master-64bit
./emsdk activate --global --build=Release sdk-incoming-64bit binaryen-master-64bit
source ./emsdk_env.sh
npm install -g node-static
emcc hello.c -s WASM=1 -o hello.html