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zlib-ng's riscv_check_features() runtime-probes the V extension with an inline vsetvli instruction; on the riscv64 CI hardware these wheels build on, that probe itself raises SIGILL, crashing every process that touches zlib_ng (zng_deflateInit2, hit at import time by all three test modules). Patch setup.py to pass zlib-ng's own --without-rvv to configure on riscv64, falling back to the portable C code paths. See the patch's Upstream-Status note for why this can't be done via CMAKE_ARGS or a CIBW_ENVIRONMENT knob (the Linux build path drives ./configure directly, with no argument-passthrough hook).
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zlib-ng1.0.0Drop-in replacement for the
zlib/gzipstdlib modules, compiled against a vendored zlib-ng (statically linked). Upstream publishes no riscv64 wheel.Mirrors upstream's
ci.ymldeploy job.Differs from upstream
Testing
License: OK
Built and tested locally under QEMU (
manylinux_2_39_riscv64andmusllinux_1_2_riscv64) on cp312: 197 passed, 2 skipped, including the RVV-accelerated code path.