apple-aarch llvm-project failure: inking to LLVM is not currently supported on aarch64-apple-darwin'

[anandijain]

thanks for enzyme + rust! i was just trying it out but running ../x.py build --stage 1 library/std led to:

Updating submodule src/llvm-project
Submodule 'src/llvm-project' (https://github.com/rust-lang/llvm-project.git) registered for path 'src/llvm-project'
Cloning into '/Users/anand/.cargo/dev/rust/src/llvm-project'...
remote: Enumerating objects: 3, done.        
remote: Counting objects: 100% (3/3), done.        
remote: Compressing objects: 100% (2/2), done.        
remote: Total 3 (delta 0), reused 2 (delta 0), pack-reused 0        
Receiving objects: 100% (3/3), done.
remote: Total 0 (delta 0), reused 0 (delta 0), pack-reused 0
remote: Enumerating objects: 118284, done.
remote: Counting objects: 100% (118284/118284), done.
remote: Compressing objects: 100% (107763/107763), done.
remote: Total 118282 (delta 19733), reused 43593 (delta 6703), pack-reused 0
Receiving objects: 100% (118282/118282), 166.91 MiB | 6.11 MiB/s, done.
Resolving deltas: 100% (19733/19733), done.
From https://github.com/rust-lang/llvm-project
 * branch                9168e236c548d1d0e9938ee6dd4cdbd308fdfd72 -> FETCH_HEAD
Submodule path 'src/llvm-project': checked out '9168e236c548d1d0e9938ee6dd4cdbd308fdfd72'
thread 'main' panicked at 'shared linking to LLVM is not currently supported on aarch64-apple-darwin', src/bootstrap/native.rs:159:17
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
Build completed unsuccessfully in 0:02:23

i know that it's probably too early to really get rust + enzyme working but im really interested in trying it out at some point

[ZuseZ4]

@anandijain Thanks for the report. Quite a few Enzyme devs work on M1/M2 Mac's, but neither Lorenz nor I do have one.
I do assume that I just fine-tuned the build settings a bit too much towards x86_64 (sry for that), but we are currently rebasing our work on the latest rustc in order to merge it into nightly. If you have the time please feel free to check if you can work around the shared-link build. Otherwise, once Lorenz fixed the merge conflicts I will re-run it on the M2 of a friend to make sure that it also works for apple as expected. Once we are merged the rustc CI should also hopefully prevent this to happen again.

[samestep]

Excited to try this project! I attempted to build commit 5c141f5 on my M1 Mac just now, and got what looks like a different error:

[85/86] Install the project...
-- Install configuration: "Release"
-- Installing: /Users/samueles/github/EnzymeAD/rust/build/build/aarch64-apple-darwin/enzyme/lib/cmake/Enzyme/EnzymeConfig.cmake
-- Installing: /Users/samueles/github/EnzymeAD/rust/build/build/aarch64-apple-darwin/enzyme/lib/cmake/Enzyme/EnzymeConfigVersion.cmake
-- Installing: /Users/samueles/github/EnzymeAD/rust/build/build/aarch64-apple-darwin/enzyme/lib/cmake/Enzyme/EnzymeTargets.cmake
-- Installing: /Users/samueles/github/EnzymeAD/rust/build/build/aarch64-apple-darwin/enzyme/lib/cmake/Enzyme/EnzymeTargets-release.cmake
-- Installing: /Users/samueles/github/EnzymeAD/rust/build/build/aarch64-apple-darwin/enzyme/lib/LLVMEnzyme-16.dylib
-- Installing: /Users/samueles/github/EnzymeAD/rust/build/build/aarch64-apple-darwin/enzyme/lib/ClangEnzyme-16.dylib
-- Installing: /Users/samueles/github/EnzymeAD/rust/build/build/aarch64-apple-darwin/enzyme/lib/LLDEnzyme-16.dylib
cargo:root=/Users/samueles/github/EnzymeAD/rust/build/build/aarch64-apple-darwin/enzyme
        finished in 85.032 seconds
thread 'main' panicked at 'src.symlink_metadata() failed with No such file or directory (os error 2)', lib.rs:1512:24
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
Build completed unsuccessfully in 0:25:38