Andrew Johnson

Has the build set the `TBB_INC` environment variable? I can't see it in the logs. StanHeaders is checking the TBB headers in the directory specified by `TBB_INC` to determine whether...

> RcppParallel autodetects the system tbb, and: Which is because you're setting `TBB_INC` in the RcppParallel build: [the most recent log](https://download.copr.fedorainfracloud.org/results/iucar/cran/fedora-40-x86_64/07350095-R-CRAN-RcppParallel/builder-live.log.gz)

That log is building the bundled TBB though? ``` ** package ‘RcppParallel’ successfully unpacked and MD5 sums checked ** using staged installation ** preparing to configure package 'RcppParallel' ... ***...

> @andrjohns Anyway, one way or another, RcppParallel was built with system tbb. It would be great that StanHeaders worked too without adding special flags. Have you got a log...

Right, that log is setting `TBB_INC` and `TBB_LIB` though?

I followed up with the remaining maintainers from #1053 by email and now only four packages have yet to merge the fixes for their package on Github - three of...

@bgoodri Can the `StanHeaders` submission be made now? I don't believe there's anything more we can do for the downstream packages, but feel free to correct me

@bgoodri Feels like I'm shouting into the void here, but there are now only four downstream breakages (from two maintainers) under all combinations of 2.21, 2.26, and 2.31 rstan/StanHeaders. These...

Is this both rstan and StanHeaders 2.26, or rstan 2.21 and StanHeaders 2.26? Can you share a reproducible example?

If you reinstall rstan 2.21 from source does it still crash?