Must I amend NAMESPACE manually to import base constants?

Package development
1

I am writing a package that needs to use month.abb. The CMD check throws a Note:

Undefined global functions or variables:
month.abb
Consider adding
importFrom("base", "month.abb")
to your NAMESPACE file
.

I am told not to amend NAMESPACE manually. Is there any way of getting roxygen to do this job?

UPDATE: I tried amending NAMESPACE manually anyway. CMD check then fails with this message:

"Error in asNamespace(ns, base.OK = FALSE) :
operation not allowed on base namespace"

2

You should be able to import as your other importedd functions using roxygen tag if you already use roxygen2

#' @importFrom base month.abb

then document your package (devtools::document()) to update NAMESPACE.