M1 arm64 support

[HerrMuellerluedenscheid]

Hey, I compiling the simple-extension example on a MacBookAir with arm M1 chip and failed because of the architecture. The error stack finishes with:

ld: symbol(s) not found for architecture arm64
   clang: error: linker command failed with exit code 1 (use -v to see invocation)

Does anybody have an idea how to compile on apples silicon?

Best regards

[davidhewitt]

The discussion in PyO3/pyo3#1800 may give you clues?

[HerrMuellerluedenscheid]

The discussion in PyO3/pyo3#1800 may give you clues?

Yes thanks!

TLDR: Create a file .cargo/config.toml in the project (or $HOME/.cargo/config.toml) folder with the following settings:

[target.aarch64-apple-darwin]
rustflags = [
  "-C", "link-arg=-undefined",
  "-C", "link-arg=dynamic_lookup",
]

Then build as usual:

cargo build

Tested with rustc version is rustc 1.59.0-nightly (efec54529 2021-12-04)