57544887d0
The BLI_spin APIs use a `SpinLock` typedef whose underlying type is contingent on the precense of `WITH_TBB`. Since our projects did not consistently define the `WITH_TBB` definition, multiple `SpinLock` types would end up in our final binary creating ODR violations. Pull Request: https://projects.blender.org/blender/blender/pulls/124285