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All workloads have similar requirment of software dependencies, including **emsdk** and **binaryen**
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> There might be slight differences when using MacOS and other Linux distro than Ubuntu. This document targets
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Ubuntu 20.04 as an example.
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## Installation instructions
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use [preparation.sh](./preparation.sh) to install all dependencies before compiling any workload. Or use [*vscode DevContainer*](../../.devcontainer/)
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The script installs below software:
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- **emsdk**. Refer to [the guide](https://emscripten.org/docs/getting_started/downloads.html). Don't forget to activate
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emsdk and set up environment variables. Verify it with `echo ${EMSDK}`. Please be sure to install and activate the building
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of 3.0.0
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``` bash
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$ cd /opt
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$ git clone https://github.com/emscripten-core/emsdk.git
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$ cd emsdk
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$ git pull
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$ ./emsdk install 3.0.0
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$ ./emsdk activate 3.0.0
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$ echo "source /opt/emsdk/emsdk_env.sh" >> "${HOME}"/.bashrc
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```
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- **binaryen**. Install
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[latest release](https://github.com/WebAssembly/binaryen/releases/download/version_111/binaryen-version_111-x86_64-linux.tar.gz)
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to */opt/binaryen*
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``` bash
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$ wget https://github.com/WebAssembly/binaryen/releases/download/${BINARYEN_VER}/${BINARYEN_FILE}
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$ tar zxf ${BINARYEN_FILE} -C /opt
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$ ln -sf /opt/binaryen-${BINARYEN_VER} /opt/binaryen
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```
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