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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"RcppParallel.h disables TBB on Alpine Linux","articleBody":"[Documentation](https://rcppcore.github.io/RcppParallel/tbb.html#portability) says packages should call tbb only `#if RCPP_PARALLEL_USE_TBB`, which is false on Alpine Linux due to\n\u003chttps://github.com/RcppCore/RcppParallel/blob/69d50f65fa6cfc8163cccf09c6a500e55f1e24a7/inst/include/RcppParallel.h#L13-L17\u003e\nI was able to successfully install RcppParallel using the system TBB (via `--configure-vars='TBB_LIB=/usr/lib TBB_INC=/usr/include'`), but the above means packages LinkingTo RcppParallel won't usually use TBB anyway.\n\nFurthermore, several packages don't seem to use TBB conditionally, at least\n\n- CaseBasedReasoning\n- DER\n- FLSSS\n- GenomeAdmixR\n- RcppMeCab\n- ~Scalelink~\n- evesim\n- junctions\n- secsse\n\nfail to compile on Alpine Linux with errors such as \"error: 'tbb' does not name a type\" or \"error: 'tbb' has not been declared\" (see the corresponding outputs at \u003chttps://github.com/bastistician/Rcheck/tree/results/musl/issues\u003e).\n\nIs there something RcppParallel[.h] could do better with regard to its default setting so TBB is used by packages on Alpine Linux if RcppParallel was installed with the system TBB?","author":{"url":"https://github.com/bastistician","@type":"Person","name":"bastistician"},"datePublished":"2024-12-22T17:15:15.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/231/RcppParallel/issues/231"}