Homebrew bottle not available anymore

[fharper]

When running brew install shellcheck as mentioned in the README, it doesn't work anymore. I got this error

[hoylemd]

Same for me. I'm on a new Apple Silicon M1 arch machine though, so I suspect that may be a factor

I tried running with --build-from-source and I got this error:

==> Installing shellcheck dependency: ghc
==> ./configure --prefix=/opt/homebrew/Cellar/ghc/8.10.4/libexec/integer-gmp --with-pic --disable-shared --build=arm_vortex_tempest-apple-darwin20
Last 15 lines from /Users/mikehoyle/Library/Logs/Homebrew/ghc/01.configure:
2021-03-08 14:03:36 -0500

./configure
--prefix=/opt/homebrew/Cellar/ghc/8.10.4/libexec/integer-gmp
--with-pic
--disable-shared
--build=arm_vortex_tempest-apple-darwin20

checking build system type... Invalid configuration `arm_vortex_tempest-apple-darwin20': machine `arm_vortex_tempest-apple' not recognized
configure: error: /bin/sh ./config.sub arm_vortex_tempest-apple-darwin20 failed

I think that's a ghc error specifically though. Will keep digging and update this comment with my findings

trtied installing ghc (glasgow haskell compiler) manually, but it's still trying to install it as a dependency first. I'm focusing on getting ghc to install cleanly right now.

[hoylemd]

Ok, I wasn't able to get it working with brew, but I was able to install from source:

1. install haskell stuff manually (I did the whole platform, but minimal might work too - you need cabal at least) https://www.haskell.org/downloads/
2. clone this repo
3. cd into the repo and do cabal install

So there's a workaround for now, but hopefully the homebrew bottle can be restored before long.

[fharper]

I'm also on M1 if that can help narrowing down the issue.

[hoylemd]

That makes me think the homebrew bottles for hcl & haskell stuff haven't been updated for apple silicon yet. I'll see if I can find a place to post a request about that.

Hopefully that would resolve this issue, but @koalaman might need to update a homebrew index as well once that's done.

[silverlyra]

I just hit this on a brand-new M1 Mac, and did some digging. The Homebrew formula for shellcheck specifically depends on ghc@8.8, and a discussion in homebrew-core ended with “ghc 8.8 may be a lost cause for Apple Silicon.”

If Shellcheck can be compiled under ghc 8.10 or 9, that seems like the path to getting it bottled again for ARM macOS. (There’s still no ghc@8.10 ARM64 bottle, either, though.)

[hoylemd]

FYI I opened an issue with ghc about it: https://gitlab.haskell.org/ghc/ghc/-/issues/19512. I didn't realize shellcheck was pinned to 8.8 though. that's a complication :(

[silverlyra]

Homebrew’s Shellcheck is now built with ghc (i.e., ghc@8.10), but ghc still doesn’t support Apple Silicon Macs. It looks like that work is targeted only for ghc@9, too. 😞

@hoylemd I took a look at ghcup from the issue you filed on GHC 🙏, and the instructions for Apple Silicon say to run the installer script with arch -x86_64 /bin/bash. Did you end up running ghc under Rosetta 2, and is the shellcheck you built an arm64 binary or x86_64?

[hoylemd]

@silverlyra It looks like it turned out intel:

➜ file $(which shellcheck)
/Users/hoylemd/.cabal/bin/shellcheck: Mach-O 64-bit executable x86_64

[bhrutledge]

I was able to brew install shellcheck under Rosetta 2, after setting up a Rosetta installation of Homebrew in /usr/local, using the instructions at: https://www.wisdomgeek.com/development/installing-intel-based-packages-using-homebrew-on-the-m1-mac/.

arch -x86_64 /usr/local/bin/brew install shellcheck

[aduffner]

You don't need rosetta anymore. GHC has been updated and so can run shellcheck natively.