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Rust 1.75 requires setting newer MACOSX_DEPLOYMENT_TARGET

With the release of rust 1.75, we now require setting the minimal MACOSX_DEPLOYMENT_TARGET to at least 10.12. You can do this by appending recipe/conda_build_config.yaml with the following content:

c_stdlib_version:       # [osx and x86]
- '10.12' # [osx and x86]

and adding {{ stdlib("c") }} as build dependency next to your compiler jinja:

- {{ compiler("rust") }}
- {{ stdlib("c") }}

Note: This entry was update in April 2024 to reflect the new infrastructure for setting MACOSX_DEPLOYMENT_TARGET, see here.