block 1153409 by 1152988 thanks Hi Adrian,
Thanks. The cause is in rust-blosc2-sys, not blosc2-rs itself: Debian's blosc2-sys drops the vendored C library, and its build script then only emits the link directive for the system libblosc2 when the use-system-blosc2 feature is enabled, so the other feature sets fail to link. Simply always linking libblosc2 is not enough either: the bundled bindings target c-blosc2 2.15 and segfault against 3.4.1 (#1152988). rust-blosc2-rs is not in testing and has no reverse dependencies. I'll discuss with the Rust team whether to regenerate the bindings for c-blosc2 3.x or drop the crates. Best, Ayushman
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