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Build scikit-hep/fastjet from the v3.5.1.4 checkout (with its FastJet, SISCone and fastjet-contrib submodules) on the riscv64 runner, following upstream's wheels.yml: cibuildwheel with upstream's own before-all (Boost 1.88 headers, CGAL 6.0.1) and FASTJET_ENABLE_CGAL=ON, and upstream's pytest suite with the test extra. Carry a licence patch: the wheel ships FastJet, SISCone and the fastjet-contrib libraries and compiles CGAL and Boost headers in, but upstream only packages its own BSD-3-Clause LICENSE.
luhenry
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The cp314t leg installed dask/dask-awkward through the wheel's `dask` extra and distributed through CIBW_TEST_REQUIRES. cibuildwheel runs those as two separate pip invocations, so the second one picked distributed 2026.8.0, upgraded dask to 2026.8.0 and broke dask-awkward 2026.2.1 (requires dask<2025.4.0): test_008-dask.py failed with "Cannot fuse tasks with multiple outputs". The other legs resolve upstream's `test` extra in one go and get dask/distributed 2025.3.1. List dask, dask-awkward and distributed together in test-requires so pip honours dask-awkward's pin.
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fastjet3.5.1.4Compiles the FastJet C++ library, SISCone and fastjet-contrib with their SWIG and pybind11 bindings. Upstream publishes no riscv64 wheel.
Mirrors upstream's
wheels.yml.Differs from upstream
PIP_ONLY_BINARYfor awkward-cpp - registry has 56, so awkward resolves to 2.13.0Testing
devextra plus uproot, dask, dask-awkward and distributed (one pip call, so dask-awkward'sdask<2025.4.0pin holds) instead oftest- pandas has no free-threaded riscv64 wheelLicense: Wheel bundles FastJet, SISCone and fastjet-contrib (GPL-2.0-or-later), CGAL (GPL-3.0-or-later/LGPL-3.0-or-later) and Boost (BSL-1.0); upstream ships no licence text for them, so the build adds it.
Patches
0001-pyproject-ship-licence-files-of-bundled-libraries.patch- To upstream [not yet submitted]. Without it the wheel carries only the BSD-3-Clause LICENSE. Same on every arch.