If llvm-15 is supported since 11.1.0, can you consider doing at least this step? llvm-15 is still in testing while llvm-14 no. This will hopefully restore openvdb (and blender) in testing (until llvm-15 also get out).
According to Sylvestre's statement and upstream's comments on their lack of resources[2], this is not a viable plan and will still ensure that openvdb is going to be removed from the trixie stable release.
As stated, I propose that we disable the AX feature for the time being, to ensure openvdb can go back into Debian. Of course, there will be a need to check affected reverse dependencies and inform all maintainers. Reverse depends of libopenvdb10.0: Depends: libnanovdb-dev (= 10.0.1-2) -> same source package Depends: prusa-slicer (>= 10.0.1) Depends: python3-openvdb (>= 10.0.1) -> same source package Depends: libopenvdb-tools (>= 10.0.1) -> same source package Depends: libopenvdb-dev (= 10.0.1-2) -> same source package Depends: libopenvdb-ax10.0 (>= 10.0.1) -> this is our problem Depends: libopenvdb-ax-tools (>= 10.0.1) -> same Depends: libnanovdb-tools (>= 10.0.1) -> same source package Depends: libopenimageio2.4 (>= 10.0.1) Depends: blender (>= 10.0.1) Rdepends of libopenvdb-ax10.0: Depends: libopenvdb-ax-dev (= 10.0.1-2) -> same source package Depends: python3-openvdb (>= 10.0.1) -> same source package Depends: libopenvdb-ax-tools (>= 10.0.1) -> same source package Rdepends of libopenvdb-ax-tools: Depends: libopenvdb-ax-tools-dbgsym (= 10.0.1-2.1+b2) -> same source package Blender seems to only use libopenvdb for importing/exporting OpenVDB files. [3] PrusaSlicer doesn't look like it needs OpenVDB AX either. [4] Same for OpenImageIO. [5] @sylvestre or someone from the debian-multimedia team: Unfortunately, I'm only a DM and cannot do NMUs. Would you accept a patch that builds OpenVDB without AX, and upload a version without libopenvdb-ax? According to my previous tests, this would remove the dependency on llvm15 or earlier. [1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1061216#23 [2] https://github.com/AcademySoftwareFoundation/openvdb/issues/1804#issuecomment-2099187537 [3] https://docs.blender.org/manual/en/latest/modeling/volumes/introduction.html [4] https://github.com/prusa3d/PrusaSlicer/blob/master/deps/%2BOpenVDB/OpenVDB.cmake [5] https://github.com/AcademySoftwareFoundation/OpenImageIO/blob/main/src/openvdb.imageio/CMakeLists.txt
