Rebuild for libboost 1.82 + flann 1.9.2 + CUDA 11.8 + CUDA 12

[h-vetinari]

Bot could not open a PR due to pybind pin

[conda-forge-webservices]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipe) and found it was in an excellent condition.

[h-vetinari]

@Tobias-Fischer
So I unpinned pybind here, because that's what kept the bot from opening this PR, but it seems this might be the reason this is now failing:

import: 'pycolmap'
Traceback (most recent call last):
  File "/home/conda/feedstock_root/build_artifacts/pycolmap_1696851618019/test_tmp/run_test.py", line 2, in <module>
    import pycolmap
ImportError: generic_type: cannot initialize type "KeysView[int]": an object with that name is already defined

Any ideas?

[h-vetinari]

Gentle ping @Tobias-Fischer

[Tobias-Fischer]

I think we might be running into pybind/pybind11#4529

[Tobias-Fischer]

The pybind11 issue seems to be resolved.

We are now running into the same issues as in #9:

  /home/conda/feedstock_root/build_artifacts/pycolmap_1697589028940/_build_env/bin/../lib/gcc/aarch64-conda-linux-gnu/10.4.0/../../../../aarch64-conda-linux-gnu/bin/ld: /usr/local/cuda/lib64/libcudart_static.a(cudart_static.o): Relocations in generic ELF (EM: 62)

I have no idea how to tackle it though, and I am not sure why it appears now.

[jakirkham]

Well it is linking to the x86_64 library while building of aarch64. The linker understandably errors

The question is, what is handing the linker the x86_64 library instead of the aarch64 library?

This probably involves more knowledge of how the build here occurs (probably combined with more verbose builds)

[jakirkham]

Also this warning on CI seems important. Maybe worth raising upstream?

  CMake Warning (dev) at /home/conda/feedstock_root/build_artifacts/pycolmap_1697589028940/_h_env_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_pl/share/colmap/COLMAPConfig.cmake:211 (find_package):
    Policy CMP0146 is not set: The FindCUDA module is removed.  Run "cmake
    --help-policy CMP0146" for policy details.  Use the cmake_policy command to
    set the policy and suppress this warning.

Edit: Seems like this should have been fixed ( colmap/colmap#1693 ). Is something here out-of-date? Like colmap or some vendored bits of it in pycolmap?

[Tobias-Fischer]

I think the issue is that this change has not been incorporated in the CmakeConfig of colmap that is being used here: https://github.com/colmap/colmap/blob/43de802cfb3ed2bd155150e7e5e3e8c8dd5aaa3e/cmake/CMakeConfig.cmake.in#L206

[Tobias-Fischer]

@conda-forge-admin please rerender

[Tobias-Fischer]

@conda-forge-admin please rerender

[Tobias-Fischer]

@conda-forge-admin please rerender

[jakirkham]

Thank you both! 🙏