05241f47f5
The `WITH_TBB` define needs to be set in order for code using the various parallel threading helpers [1][2] to actually be multi-threaded. The affected projects did not have `WITH_TBB` defined and were using the single-thread variant of all affected APIs. Additionally, in the case of `EnumerableThreadSpecific`, this results in an ODR violation where there are 2 versions of the same class linked into our final binary. One with TBB members and one without. -------- [1] Namely code using the `BLI_task.hh`, `BLI_sort.hh`, and `BLI_enumerable_thread_specific.hh` headers [2] `EnumerableThreadSpecific`, `parallel_for_each`, `parallel_reduce`, `parallel_invoke`, `isolate_task`, `parallel_sort` Pull Request: https://projects.blender.org/blender/blender/pulls/124283
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