Am 04.12.2025 um 17:19 schrieb Tim Taylor <tim.taylor at hiddenelephants.co.uk>:
?This is due to recent changes in R-devel that effect Rcpp. It seems I?aki/Dirk have it in hand over there (https://github.com/RcppCore/Rcpp/pull/1418)
Tim
On Thu, 4 Dec 2025, at 4:07 PM, matthias-gondan at gmx.de 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.
To reproduce in RStudio, just
1. create a new Rcpp sample,
2. change the email in DESCRIPTION into something meaningful (I forgot
that part when I tried it first)
3. submit to r-devel (!) on CRAN's winbuilder
I appreciate any guidance on this (since my own package shows the same
error).
Best wishes,
Matthias
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