Re: undefined symbol from OpenColorIO prevents Blender from running

Richard Shaw <hobbes1069@xxxxxxxxx> · Tue, 19 Nov 2019 21:49:38 -0600

On Tue, Nov 19, 2019 at 9:27 PM Luya Tshimbalanga <luya@xxxxxxxxxxxxxxxxx> wrote:

    Some users reported Blender which I maintain failed to start due
      to this issue:
    blender: symbol lookup error: /lib64/libOpenColorIO.so.1: undefined symbol: _ZN4YAML6detail9node_data12empty_scalarB5cxx11E

    Accordingly, the problem is caused by OpenColorIO from which
      Blender depends. A bug is already filed [1] and it would be nice
      to fix it. Currently,the latest build of OpenColorIO on Fedora 31
      is 1.1.1-2 while Rawhide is on 1.1.1-4[2]

I'm all for fixing bugs quickly but it was only assigned to OCIO in BZ on 11/20 (UTC) and it's still November 19th for me :)

It would hopefully be fixed by a simple rebuild which any provenpackager can do, but digging a little deeper:

$ c++filt _ZN4YAML6detail9node_data12empty_scalarB5cxx11E
YAML::detail::node_data::empty_scalar[abi:cxx11]

So the problem is really with YAML. It looks like Till Hofmann built yaml-cpp 0.6.3 for Fedora 30 and 31 (I only built it for Rawhide) and did not rebuild OCIO.

And other packages probably need to be rebuilt as well:
# dnf --repoid=rawhide repoquery --qf "%{name}" --whatrequires "libyaml-cpp.so.0.6()(64bit)"
Last metadata expiration check: 0:00:43 ago on Tue 19 Nov 2019 09:47:36 PM CST.
OpenColorIO
calamares-libs
daggy
dcm2niix
facter
fawkes-core
fawkes-lua
fawkes-plugin-navgraph
librime
mir-server-libs
pdns-ixfrdist
thinkfan

I'll take care of OCIO.

Thanks,
Richard
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