[MacOS] Python Build Fails about erdos

[sukritkalra]

@objorkman Can you let us know your Python, MacOS and Command Line tools version if the build succeeds on your Mac?

[objorkman]

Potential workaround: PyO3/rust-numpy#223
Tested on M1 mac

[pschafhalter]

PyO3/pyo3#341 might be related. Can someone on MacOS try the workaround proposed in the PyO3 FAQ?

Would be happy to merge that change if it fixes MacOS support.

[pschafhalter]

They also suggest another fix (similar to the workaround @objorkman found), which involves adding a build.rs file:
https://pyo3.rs/latest/building_and_distribution.html#macos

[objorkman]

If building on M1, create a file .cargo/config.toml with

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

to fix this build issue (cc. PyO3/rust-numpy#223)

[sukritkalra]

Closing because building using maturin on Mac solves the linker issues.