ghcup-hs/docs/install.md

Getting started

Let's get started....

Installation

The following commands will download the ghcup binary into ~/.ghcup/bin (or C:\ghcup\bin on windows) and then run it to interactively install the Haskell Toolchain. These commands should be run as non-root/non-admin user.

For Linux, macOS, FreeBSD or Windows Subsystem 2 for Linux, run this in a terminal:

curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | sh

For Windows, run this in a PowerShell session:

Set-ExecutionPolicy Bypass -Scope Process -Force;[System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072;Invoke-Command -ScriptBlock ([ScriptBlock]::Create((Invoke-WebRequest https://www.haskell.org/ghcup/sh/bootstrap-haskell.ps1 -UseBasicParsing))) -ArgumentList $true

Advanced users may want to perform a manual installation and GPG verify the binaries.

Supported tools

GHCup supports the following tools, which are also known as the Haskell Toolchain:

1. GHC
2. cabal-install
3. haskell-language-server
4. stack

Supported platforms

This list may not be exhaustive and specifies support for bindists only.

Platform	Architecture	ghcup	GHC	cabal	HLS	stack
Windows 7	amd64	❔	✅	✅	✅	✅
Windows 10	amd64	✅	✅	✅	✅	✅
Windows Server 2016	amd64	✅	✅	✅	✅	✅
Windows Server 2019	amd64	✅	✅	✅	✅	✅
Windows Server 2022	amd64	✅	✅	✅	✅	✅
Windows WSL1	amd64	❌	❔	❔	❔	❔
Windows WSL2	amd64	✅	✅	✅	✅	✅
MacOS >=13	amd64	✅	✅	✅	✅	✅
MacOS <13	amd64	❌	❔	❔	❔	❔
MacOS	aarch64	✅	✅	✅	⚠️	❌
FreeBSD	amd64	✅	⚠️	✅	⚠️	❌
Linux generic	x86	✅	✅	✅	✅	✅
Linux generic	amd64	✅	✅	✅	✅	✅
Linux generic	aarch64	✅	⚠️	✅	⚠️	❌
Linux generic	armv7	✅	⚠️	✅	⚠️	❌

Windows 7

May or may not work, several issues:

• https://gitlab.haskell.org/haskell/ghcup-hs/-/issues/140
• https://gitlab.haskell.org/haskell/ghcup-hs/-/issues/197

WSL1

Unsupported. GHC may or may not work. Upgrade to WSL2.

MacOS <13

Not supported. Would require separate binaries, since >=13 binaries are incompatible. Please upgrade.

MacOS aarch64

HLS bindists are still experimental. Stack is theoretically supported, but has no binaries yet.

FreeBSD

Lacks some upstream bindists and may need compat libs, since most bindists are built on FreeBSD-12. HLS bindists are experimental.

Linux ARMv7/AARCH64

Lower availability of bindists. HLS only has experimental ones. Stack not supported currently.

Manual install

Download the binary for your platform at https://downloads.haskell.org/~ghcup/ and place it into your PATH anywhere.

If you want to GPG verify the binaries, import the following key first: 7784930957807690A66EBDBE3786C5262ECB4A3F.

Then adjust your PATH in ~/.bashrc (or similar, depending on your shell) like so:

export PATH="$HOME/.cabal/bin:$HOME/.ghcup/bin:$PATH"

Vim integration

See ghcup.vim.