Install the Prerequisites

This is part of the Getting Started guide. Please read the full guide if you have trouble.

You will need the following tools:

You will find platform specific instructions to install these below.

Windows

You will need the Windows Subsystem for Linux. If you haven't installed it yet, please follow this guide prior to start: https://docs.microsoft.com/it-it/windows/wsl/install-win10

Open a Bash shell and run the following command

sudo apt-get install build-essential flex bison clang git

Now, you will have to add the llvm repository to your sources.list. So, run this command:

sudo nano /etc/apt/sources.list

and paste this string at the end of the list:

deb http://apt.llvm.org/xenial/ llvm-toolchain-xenial main

then save the file and quit (ctrl+x and then press the 'y' key to save). Now it is time to refresh, with:

sudo apt-get update && sudo apt-get upgrade

we can now install llvm (and it's other dependencies):

sudo apt-get install clang-4.0 lldb-4.0 llvm-4.0 llvm-4.0-dev lld-4.0

Install MSYS2

In MSYS2 Shell:

pacman -S make git gcc bison flex llvm clang

On macOS with Homebrew, this should do the job (XCode ships with make and bison and flex):

brew install llvm --with-lld --with-clang

sudo apt-get install build-essential flex bison clang git

Then install lld from an LLVM nightly package

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