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pyvips-binary bundles a libvips shared library downloaded from a kleisauke/libvips-packaging release, which publishes no linux-riscv64 tarball. Build that tarball first with libvips-packaging's own build.sh and posix.sh, patched to add a native linux-riscv64 platform, then feed it to pyvips-binary's unchanged cibuildwheel before-build.
luhenry
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zlib-ng 2.3.3 defines RISCV_FEATURES only inside its WITH_RVV branch, so with RVV off and the Zbc CRC32 kernel still detected, functable.c fails on `cf.riscv.has_zbc` (zlib-ng/zlib-ng@9f396c3 fixes it after the release). Turn WITH_RISCV_ZBC off too in patch 0002, keeping zlib-ng on the rv64gc scalar paths the patch already intends.
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pyvips-binary8.18.6Compiles libvips and its full dependency stack from source with libvips-packaging's
build.sh, then the cffi_libvipsabi3 extension against it. Upstream publishes no riscv64 wheel, and libvips-packaging no riscv64 tarball.Mirrors pyvips-binary's
ci.ymland libvips-packaging'sci.yml.Differs from upstream
Matrix: cp314 only, as upstream - one abi3 wheel serves every interpreter.
Testing
License: The bundled libvips statically links LGPL (libvips, GLib, Pango, librsvg, libheif, libexif, FriBidi) and permissive libraries; upstream ships none of their licence texts, so the build adds them and publishes their sources.
Patches
0001(libvips-packaging) - To upstream. Adds the linux-riscv64 platform; riscv64-only.0002(libvips-packaging) - Inappropriate. Drops zlib-ng/libaom/pixman RVV kernels, which SIGILL on our runners, and zlib-ng's Zbc CRC32, which zlib-ng 2.3.3 cannot build without RVV; riscv64-only.0003(pyvips-binary) - To upstream.download-vips.pyrejects riscv64; riscv64-only.0004(pyvips-binary) - Inappropriate. Unpacks the locally built tarball instead of downloading.