b43616513a
It's broken and it's not needed anymore, since we require OpenGL 4.3. Fix #142620 Note: Debug callbacks still won't work for compilation threads, but that's relatively harmless and should cause no issues for the user. This will be fixed in 5.0 with #142715. (4.5 backport candidate) Pull Request: https://projects.blender.org/blender/blender/pulls/142716