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ci: add manylinux_2_28_riscv64 to wheel build matrix#501

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gounthar wants to merge 2 commits intopython-greenlet:masterfrom
gounthar:feat/riscv64-wheels
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ci: add manylinux_2_28_riscv64 to wheel build matrix#501
gounthar wants to merge 2 commits intopython-greenlet:masterfrom
gounthar:feat/riscv64-wheels

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@gounthar gounthar commented Mar 18, 2026

What does this change?

Add manylinux_2_39_riscv64 to the manylinux wheel build matrix so that riscv64 wheels are built and uploaded alongside existing architectures.

Why manylinux_2_39?

manylinux_2_28 has no riscv64 support. manylinux_2_39 is the first pypa manylinux image with riscv64 (quay.io/pypa/manylinux_2_39_riscv64).

Evidence

  • The riscv64 QEMU test job already exists and passes in this repo
  • Built greenlet from source on native riscv64 hardware (BananaPi F3, SpacemiT K1, rv64gc): SUCCESS
  • QEMU is already set up with platforms: all in the manylinux job

Note: this work is part of the RISE Project effort to improve Python ecosystem support on riscv64 platforms. Native riscv64 CI runners are available for free via RISE RISC-V runners.

The riscv64 test job already exists (via QEMU), but riscv64 wheels
are not built in the manylinux release matrix. This adds the
manylinux_2_28_riscv64 image to produce distributable wheels.

Signed-off-by: Bruno Verachten <gounthar@gmail.com>
Signed-off-by: Bruno Verachten <gounthar@gmail.com>
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