Jo Shields f76e0fe5e6 Add --python-platform riscv64-unknown-linux to various commands (#15630) ... ## Summary We (and I'm sure many others) are currently doing a lot of RISC-V work in QEMU. It is possible to significantly improve the speed of Python-related builds by taking care of the environment setup using an AMD64 `uv` binary (bypassing binfmt/qemu-system emulation). Some approx numbers from local testing in riscv64 Ubuntu in QEMU: | Resolver arch | Command | Time | | --- | --- | --- | | riscv64 | `pip install --upgrade --break-system-packages --index-url=https://gitlab.com/api/v4/projects/riseproject%2Fpython%2Fwheel_builder/packages/pypi/simple openai-harmony` | 15s | | riscv64 | `uv pip install --upgrade --system --break-system-packages --index-url=https://gitlab.com/api/v4/projects/riseproject%2Fpython%2Fwheel_builder/packages/pypi/simple openai-harmony` | 5s | | amd64 | `uv pip install --python-platform=riscv64-unknown-linux --upgrade --system --break-system-packages --index-url=https://gitlab.com/api/v4/projects/riseproject%2Fpython%2Fwheel_builder/packages/pypi/simple openai-harmony` | 4s | The numbers from some larger internal packages with deeper dependency trees are much more pronounced - 3m6 vs 43s vs 8s, in one example. Manylinux 2.39 is specified, as it's the first (only?) RISC-V manylinux ## Test Plan Locally, in QEMU. `$ docker run --platform linux/riscv64 -it ubuntu:latest`, get amd64 libc into LD_LIBRARY_PATH, tests as above		2025-09-02 13:17:30 -04:00
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src	Add --python-platform riscv64-unknown-linux to various commands (#15630)	2025-09-02 13:17:30 -04:00
Cargo.toml	Move preview features into a dedicated crate (#15482)	2025-08-24 09:55:30 -04:00