brew jank fails the health check

[shantanu-sardesai]

Issue Description

After updating jank from brew it fails the health check for AOT compilation on MacOS.

The wording of the error can be improved, instead of "jit aot" it should be just "aot".

Reproduction Steps

$ brew reinstall jank-lang/jank/jank

$ jank check-health

jank health check

─ system ──────────────────────────────────────────────────────────────────────────
─ ✅ operating system: macos
─ ✅ default triple: arm64-apple-darwin24.6.0

─ jank install ────────────────────────────────────────────────────────────────────
─ ✅ jank version: jank-0.1-alpha
─ ✅ jank resource dir: ../lib/jank/0.1
─ ✅ jank resolved resource dir: /opt/homebrew/Cellar/jank/0.1/bin/../lib/jank/0.1 (found)
─ ✅ jank user cache dir: /Users/shantanusardesai/.cache/jank/arm64-apple-darwin24.6.0-9b209a7b414d4298b30f18158ce90eab4a30092be1013e8d6ed377380a68ac9d (found)

─ clang install ───────────────────────────────────────────────────────────────────
─ ⚠️  configured clang path: /Users/runner/work/jank/jank/compiler+runtime/build/llvm-install/usr/local/bin/clang++ (not found)
─ ✅ runtime clang path: /opt/homebrew/Cellar/jank/0.1/bin/../lib/jank/0.1/bin/clang++ (found)
─ ⚠️  configured clang resource dir: /Users/runner/work/jank/jank/compiler+runtime/build/llvm-install/usr/local/lib/clang/22 (not found)
─ ✅ runtime clang resource dir: /opt/homebrew/Cellar/jank/0.1/lib/jank/0.1/lib/clang/22 (found)
─ jank runtime ────────────────────────────────────────────────────────────────────
─ ✅ jank runtime initialized
─ ✅ jank pch path: /Users/shantanusardesai/.cache/jank/arm64-apple-darwin24.6.0-9b209a7b414d4298b30f18158ce90eab4a30092be1013e8d6ed377380a68ac9d (found)
─ ✅ jank can jit compile c++
Compiled program exited with code '1'.
─ system/clang-executable-not-found ────────────────────────────────────────────
error: Unable to find a suitable Clang 22 binary.


─ ❌ jank cannot jit aot compile working binaries

Stack trace

N/A.

OS Version Information

MacOS Sequoia v15.7.3

I acknowledge that:

• I have searched the jank repository (both open and closed Discussions and Issues) and confirm this is not a duplicate of an existing issue or discussion.
• I have checked the "Preview" tab on all text fields to ensure that everything looks right, and have wrapped all configuration and code in code blocks with a group of three backticks (```) on separate lines.

[jeaye]

Thanks, Shantanu. You mentioned upgrading. When did you upgrade and what was the old version which worked? Did this work recently?

…

On February 9, 2026 8:03:41 PM PST, Shantanu Sardesai ***@***.***> wrote: ### Issue Description After updating `jank` from `brew` it fails the health check for AOT compilation on MacOS. ### Reproduction Steps ```sh $ brew reinstall jank-lang/jank/jank $ jank check-health ``` ### jank health check ```text ─ system ────────────────────────────────────────────────────────────────────────── ─ ✅ operating system: macos ─ ✅ default triple: arm64-apple-darwin24.6.0 ─ jank install ──────────────────────────────────────────────────────────────────── ─ ✅ jank version: jank-0.1-alpha ─ ✅ jank resource dir: ../lib/jank/0.1 ─ ✅ jank resolved resource dir: /opt/homebrew/Cellar/jank/0.1/bin/../lib/jank/0.1 (found) ─ ✅ jank user cache dir: /Users/shantanusardesai/.cache/jank/arm64-apple-darwin24.6.0-9b209a7b414d4298b30f18158ce90eab4a30092be1013e8d6ed377380a68ac9d (found) ─ clang install ─────────────────────────────────────────────────────────────────── ─ ⚠️ configured clang path: /Users/runner/work/jank/jank/compiler+runtime/build/llvm-install/usr/local/bin/clang++ (not found) ─ ✅ runtime clang path: /opt/homebrew/Cellar/jank/0.1/bin/../lib/jank/0.1/bin/clang++ (found) ─ ⚠️ configured clang resource dir: /Users/runner/work/jank/jank/compiler+runtime/build/llvm-install/usr/local/lib/clang/22 (not found) ─ ✅ runtime clang resource dir: /opt/homebrew/Cellar/jank/0.1/lib/jank/0.1/lib/clang/22 (found) ─ jank runtime ──────────────────────────────────────────────────────────────────── ─ ✅ jank runtime initialized ─ ✅ jank pch path: /Users/shantanusardesai/.cache/jank/arm64-apple-darwin24.6.0-9b209a7b414d4298b30f18158ce90eab4a30092be1013e8d6ed377380a68ac9d (found) ─ ✅ jank can jit compile c++ Compiled program exited with code '1'. ─ system/clang-executable-not-found ──────────────────────────────────────────── error: Unable to find a suitable Clang 22 binary. ─ ❌ jank cannot jit aot compile working binaries ``` ### Stack trace ```text N/A. ``` ### OS Version Information MacOS Sequoia v15.7.3 ### I acknowledge that: - [X] I have searched the jank repository (both open and closed Discussions and Issues) and confirm this is not a duplicate of an existing issue or discussion. - [X] I have checked the "Preview" tab on all text fields to ensure that everything looks right, and have wrapped all configuration and code in code blocks with a group of three backticks (` ``` `) on separate lines. -- Reply to this email directly or view it on GitHub: #694 You are receiving this because you are subscribed to this thread. Message ID: ***@***.***>

[shantanu-sardesai]

I did the upgrade yesterday to test the regression that I mentioned in this discussion. Although I can't guarantee this, I think this was my first update since installing it on jank's alpha launch and nor can I certainly say that the check-health had passed the last time either 😅.

I don't really use this brew version of jank as much but rather just use my local build. Although it might be relevant to note that I recently updated my MacOS to Sequoia and after doing so the brew based llvm --head didn't allow me to build jank and I switched to building clang locally as well. I didn't report this issue here, mainly because my local system has a history of this weird problems/behaviours. If it would help debug this "breakage" then I could try using the brew based llvm --head again and report back the error during build that comes up here. What do you think?

[jeaye]

Closing this, since there are no health checks locally or in our daily package check for macOS. https://github.com/jank-lang/jank/actions/runs/29041115189