frichtlm [1] filed a request to merge r-rcpp [2] into r-cran-rcpp [3]:

There are competing nomenclature for CRAN packages between those maintained by you and those that were submitted by wagnerflo. It would be beneficial to standardize to avoid conflicts.

[1] https://aur.archlinux.org/account/frichtlm/ [2] https://aur.archlinux.org/pkgbase/r-rcpp/ [3] https://aur.archlinux.org/pkgbase/r-cran-rcpp/