Cannot install ghcup on Apple Silicon

Isn't there a x86_64 compatibility layer?

@maerwald You're right, there is.

After some hunting around, I hit upon the way to invoke it:

curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | arch -x86_64 /bin/bash

That seems to have gotten everything installed correctly.

Is there a way we could update the docs to point this out, so other folks don't have to search for it like I did?

We certainly should: check https://gitlab.haskell.org/haskell/ghcup-hs/-/tree/master/www for the website code. Any ideas appreciated. Can we detect in-browser if we're running apple silicon?

Can we detect in-browser if we're running apple silicon?

Doesn't look like we can, unfortunately :/

Both Safari and Firefox report navigator.platform as "MacIntel". navigator.appVersion likewise reports "Intel" amongst all the other info in there, but nothing about Apple Silicon.

Even navigator.oscpu in Firefox is "Intel Mac OS X 11.1"

I found someone who's creating a canvas element on the page and then checking WebGL rendering info from it for GPU information, but that seems fragile (as the poster admits).

What do you think? Maybe best to offer both instruction sets when we detect a Mac, and let users grab whichever one they need?

mentioned in merge request !54 (merged)

I took the liberty of opening a PR that adds a second command string for Apple Silicon users: !54 (merged)

Hey @mindbat I tried the script you used and I got the following error:

cathalobrien@Cathals-MacBook-Pro functional % curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | arch -x86_64 /bin/bash
arch: posix_spawnp: /bin/bash: Bad CPU type in executable
(23) Failed writing body

I'm on a new MacBook Pro (version 11.1)

Sorry I just installed Rosetta and it's working now

mentioned in commit 8ed9b443

Would it be possible to update the ghcup script to detect the architecture and install ghc via arch -x86_64? Then a different install command wouldn't be needed.

Alternatively, wouldn't the second command work for intel macs too, as it's simply forcing intel compatibility? In that case only the second command is needed.

Someone with access to an Apple Silicon has to test that and provide a patch. That's not me, since I don't have one.

@maerwald Unfortunately that's not me either, I'm a Linux person.

I'd hope that this will work on all Macs, so perhaps someone with a non-silicon Mac could test it?

curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | arch -x86_64 /bin/bash

I maintain an installer that runs ghcup as a dependency, I'll try to find some silicon and non-silicon mac people to help test it out there.

I've had a two people confirm that this command works fine on non-silicon Macs. I'm not surprised, but this confirms it. I'll make a PR.

https://club.tidalcycles.org/t/looking-for-help-with-mac-support/2962

No success installing ghcup on Apple Silicon (Mac Mini M1, macOS 11.2.3) via:

curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | arch -x86_64 /bin/bash

$ curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | arch -x86_64 /bin/bash

Welcome to Haskell!

This script will download and install the following binaries:
  * ghcup - The Haskell toolchain installer
            (for managing GHC/cabal versions)
  * ghc   - The Glasgow Haskell Compiler
  * cabal - The Cabal build tool

ghcup installs only into the following directory,
which can be removed anytime:
  /Users/user/.ghcup

Press ENTER to proceed or ctrl-c to abort.
Note that this script can be re-run at any given time.


Unknown architecture: arm64

arch -x86_64 /bin/bash and then uname -m results in: arm64

Rosetta is installed.

softwareupdate --install-rosetta
I have read and agree to the terms of the software license agreement. A list of Apple SLAs may be found here: http://www.apple.com/legal/sla/
Type A and press return to agree: A
Install of Rosetta 2 finished successfully

Maybe this is interesting, too:

$ arch -x86_64 /bin/bash uname -m
/opt/homebrew/opt/coreutils/libexec/gnubin/uname: /opt/homebrew/opt/coreutils/libexec/gnubin/uname: cannot execute binary file

$ arch -x86_64 /bin/bash /usr/bin/uname -m
/usr/bin/uname: /usr/bin/uname: cannot execute binary file

I just installed on a raspi4 (with debian from https://raspi.debian.net/tested-images/) and found the the architecture is recognized (after installing curl (;-)). uname says aarch64.

There were additional problem - missing libs, (llvm, libnuma-dev) and no PATH set. I will open separate issues.

I just installed on a raspi4 (with debian from https://raspi.debian.net/tested-images/) and found the the architecture is recognized (after installing curl (;-)). uname says aarch64.

Raspi4 has nothing to do with Apple Silicon. This issue is about mac.

added scopeplatforms scopeupstream labels

I recently installed ghcup on an M1 Mac with no problems. Maybe this has been fixed?

Yep

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Cannot install ghcup on Apple Silicon

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