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Build stim's riscv64 wheels from the v1.16.0 checkout with cibuildwheel, mirroring upstream's ci.yml build_dist job (same test-requires and test-command), narrowed to cp312/cp313/cp314 manylinux_riscv64. stim's SIMD code is compile-time gated (__AVX2__/__SSE2__) with a portable 64-bit bitword polyfill, and setup.py already builds only _stim_polyfill on non-x86. The one blocker is march.pybind.cc including x86-only <cpuid.h> on any non-Windows target it doesn't recognise; the patch adds __riscv to the existing dummied-out branch (aarch64/PPC) so detection returns "polyfill".
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stim1.16.0Compiles stim's C++ stabilizer simulator into pybind11 extensions (the portable 64-bit polyfill build, as on arm64). Upstream publishes no riscv64 wheel.
Mirrors upstream's
ci.ymlbuild_distjob.Differs from upstream
Matrix: cp312/cp313/cp314 - upstream ships no free-threaded wheel.
Testing
License: OK
Patches
0001-march-dummy-cpuid-on-riscv.patch- To upstream.march.pybind.ccincludes x86-only<cpuid.h>on unrecognised targets, so the build fails; riscv64-only.