OpenColorIO/Substance Sampler

I had been running Substance Sampler (from Steam, native linux application) happily a while ago on Manjaro. I hadn’t used it for a bit and fired it up today, and it doesn’t launch.

It seems it needs But the OpenColorIO in the repos only provides I guess this was updated recently? I tried the old hack to symlink 2.0 to 2.1, but unfortunaely then I get a symbol lookup error, so that won’t work.

I also tried building this PKGBUILD to get OCIO 2.0, but it doesn’t seem like it will build after the gcc12 update?