Problem between rstan and RcppParallel related to tbb
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Description
Please see https://github.com/RcppCore/RcppParallel/issues/135#issuecomment-716663576
This issue arises because of the patch used on Debian builds:
https://sources.debian.org/patches/r-cran-rcppparallel/5.0.2+dfsg-3/use_debian_packaged_libtbb.patch/
In particular, RcppParallel uses the system tbb library rather than the bundled version via this patch. However, rstan still assumes that tbb would be available via RcppParallel.
One simple way forward would be for rstan to allow for this path to be missing here.
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the linked RcppParallel issue comment and Debian's use_debian_packaged_libtbb.patch, then trace where rstan assumes the TBB path supplied by RcppParallel. Done means Debian's missing path is tolerated without breaking the supported RcppParallel/TBB setup.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- r
- Domain
- build-system
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100