On Thu, 4 Dec 2025 at 17:08, <[email protected]> wrote: > > Dear package developers and affiliated people, > > I just noted a problem with an Rcpp-based package (cannot find > R_ext/Callbacks.h): > > https://win-builder.r-project.org/S0C6dP4J5NLU/00install.out > > I admit that I don't know if it is a problem in Rcpp, R-devel or in the Rcpp > example from RStudio.
TL;DR, this has been _fixed_. You can resubmit your package. Longer explanation follows. In the process of header cleanup that R Core has been addressing lately, R_ext/Callbacks.h was dropped in R-devel [1], and packages started to fail with the error you experienced, including all new submissions linking to Rcpp. We are aware of that [2]. But it turns out that this header has been restored for now [3], so packages won't fail anymore. It turns out that Rcpp introduced this include many many years ago, and probably it was needed then looking at the ChangeLog, but it is certainly not needed anymore, so we are removing it [4]. The next Rcpp release is scheduled for January without this include, and then R Core may safely remove it. So thanks, Luke, for restoring it for now. [1] https://github.com/r-devel/r-svn/commit/671453f7c085d503dff55b533797f58d789e5510 [2] https://github.com/RcppCore/Rcpp/issues/1417 [3] https://github.com/r-devel/r-svn/commit/679f14eebcb4030ee7339f2c8e40073a9d0edd5d [4] https://github.com/RcppCore/Rcpp/pull/1418 Best, -- Iñaki Úcar ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-package-devel
