radare2/shlr/sdb/wasi.sh

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#!/bin/sh
export WASI_SDK=${HOME}/Downloads/wasi/wasi-sdk-12.0
export WASI_SYSROOT=${HOME}/Downloads/wasi/wasi-sysroot
if [ ! -d "$WASI_SDK" ]; then
#OS=linux,macos,mingw
OS=`uname`
case "$OS" in
linux|Linux) OS=linux ; ;;
darwin|Darwin) OS=macos ; ;;
windows|Windows) OS=mingw ; ;;
esac
mkdir -p ~/Downloads/wasi
wget -c -O ~/Downloads/wasi/wasi-sdk.tar.gz https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-12/wasi-sdk-12.0-$OS.tar.gz || exit 1
wget -c -O ~/Downloads/wasi/wasi-root.tar.gz https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-12/wasi-sysroot-12.0.tar.gz || exit 1
(
cd ~/Downloads/wasi
tar xzvf wasi-sdk.tar.gz
tar xzvf wasi-root.tar.gz
)
fi