Hi Martin and Ivan, Thank you both for the clarification.
I have confirmed that I am using the most recent versions for my environment: R 4.5.2, Rcpp 1.1.1, RcppParallel 5.1.11-1, and RcppThread 2.3.0. Based on our discussion, I will wait for the macOS Builder updates to conclude before re-checking the build results. Does anyone have an estimate on when the current CRAN macOS builder updates are expected to complete? Thank you again for your guidance. Best regards, Kaifeng On Fri, Feb 6, 2026 at 11:07 AM Ivan Krylov <[email protected]> wrote: > В Fri, 6 Feb 2026 10:23:27 -0500 > Kaifeng Lu <[email protected]> пишет: > > > I am currently submitting a new version of the trtswitch package to > > CRAN and have encountered a fatal error during the macOS arm64 build > > process: fatal error: 'R_ext/Callbacks.h' file not found > > The full build log for this submission is available here > > macOS build result for 1770388945-93cbe1227ad944fa > > < > https://mac.r-project.org/macbuilder/results/1770388945-93cbe1227ad944fa/> > > >> In file included from > >> .../Rcpp/include/Rcpp.h:27: ...Rcpp/include/RcppCommon.h:75:10: > >> fatal error: 'R_ext/Callbacks.h' file not found > > This was fixed in Rcpp in December 2025 [1] and should work well with > the latest version of Rcpp. The macOS Builder seems to be behind on > some package updates right now. > > -- > Best regards, > Ivan > > [1] https://github.com/RcppCore/Rcpp/pull/1418 > [[alternative HTML version deleted]] ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-package-devel
