bug: home-manager can't install pkgs on Apple M1 chip

[jduan]

Is there an existing issue for this?

• I have searched the existing issues

Issue description

I was able to install home-manager on my macbook pro (2021 M1 chip) but I can't use it to install any packages.

home-manager switch fails right away with this error:

~ % home-manager switch
error: cannot bootstrap GHC on this platform ('aarch64-darwin' with libc 'defaultLibc')
(use '--show-trace' to show detailed location information)

Can you help? Thanks!

Maintainer CC

No response

System information

- system: `"aarch64-darwin"`
 - host os: `Darwin 20.6.0, macOS 11.5.1`
 - multi-user?: `no`
 - sandbox: `no`
 - version: `nix-env (Nix) 2.3.15`
 - channels(jduan): `"home-manager-21.05, nixpkgs-21.11pre308173.10bb0364861"`
 - nixpkgs: `/Users/jduan/.nix-defexpr/channels/nixpkgs`

[berbiche]

Hi,

I don't have an m1 machine to test this but AFAIK some of the packages you are trying to install simply cannot be built on m1, GHC being one of those.

Can you try to get into a nix-shell with ghc and report if it works nix-shell -p ghc?

edit: You will need to look into cross compilation until GHC correctly supports aarch64.

• Support for Apple Silicon (aarch64-darwin) NixOS/nixpkgs#95903 (comment)

[jduan]

Running nix-shell -p ghc gives the same error:

error: Package ‘ghc-8.10.4’ in /nix/store/as4m9wx3h99b3v4dgcspbc47md5g1kjw-nixpkgs-21.11pre308173.10bb0364861/nixpkgs/pkgs/development/compilers/ghc/8.10.4.nix:308 is not supported on ‘aarch64-darwin’, refusing to evaluate.

From the link you shared, it seems ghc 8.10.5 is working with Apple Silicon but it hasn't made to nix-unstable yet.

Do I just need to wait at this point?

[sumnerevans]

Yes, at this point there's nothing we can do on the home manager side, so I think you will just have to wait until it's resolved in upstream nixpkgs.

[jduan]

That sounds good.

[alexpearce]

ghc-8.10.6 is now supported. I'm able to install it:

$ nix-shell -p ghc -I nixpkgs=https://github.com/NixOS/nixpkgs/archive/master.tar.gz

[nix-shell:~]$ which ghc
/nix/store/h498hkqbfhsl7b5wsl5dlz1433x9s0w7-ghc-8.10.6/bin/ghc

But the -I override does not work when installing home-manager.

$ nix-shell '<home-manager>' -A install -I nixpkgs=https://github.com/NixOS/nixpkgs/archive/master.tar.gz

Creating initial Home Manager generation...

error: Package ‘ghc-8.10.6’ in /nix/store/y7l57wijqlphsd6g1475nvg2zgy9y81d-nixpkgs-21.11pre312229.08ef0f28e3a/nixpkgs/pkgs/development/compilers/ghc/8.10.6.nix:308 is not supported on ‘aarch64-darwin’, refusing to evaluate.

       a) To temporarily allow packages that are unsupported for this system, you can use an environment variable
          for a single invocation of the nix tools.

            $ export NIXPKGS_ALLOW_UNSUPPORTED_SYSTEM=1

       b) For `nixos-rebuild` you can set
         { nixpkgs.config.allowUnsupportedSystem = true; }
       in configuration.nix to override this.

       c) For `nix-env`, `nix-build`, `nix-shell` or any other Nix command you can add
         { allowUnsupportedSystem = true; }
       to ~/.config/nixpkgs/config.nix.
(use '--show-trace' to show detailed location information)

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Uh oh, the installation failed! Please create an issue at

    https://github.com/nix-community/home-manager/issues

if the error seems to be the fault of Home Manager.

Is there a way to have home-manager use the nixpkgs master?