Retaining build caching on Mac

[max-sixty]

We recently implemented the config.toml as recommended in https://pyo3.rs/v0.14.5/building_and_distribution.html#macos.

Unfortunately this disables some part of cargo build caching on Mac as discussed at PRQL/prql#411. Is anyone familiar with an approach that allows pyo3 to work on Mac without giving up some caching, particularly for other crates in the repo?

Thank you!

[davidhewitt]

Is this potentially related to #1708? (i.e. I wonder if it's something like - "rust-analyzer is not using those flags, so it invalidates the cache") If so, the same workaround of setting rust-analyzer to use a separate target dir might help?

[davidhewitt]

You might also want to try the pyo3_build_config build script documented just above the config.toml option?

[max-sixty]

This seems to fix it! Thanks @davidhewitt !