This blog is updated daily.
A general description is here.
‘R CMD check’ now checks for ‘.C()’, ‘.Call()’, ‘.External()’ and ‘.Fortran()’ calls in other packages, and gives a warning on those found from R itself (which are not part of the API and change without notice: many will changed for R 2.16.0).
The misuse of ‘.C("name", ..., PACKAGE = foo)’ where ‘foo’ is an arbitrary R object is now an error. (Seen in package ‘coxphf’ and elsewhere.)
The misuse ‘.C"name",(..., PACKAGE = "")’ (see in package ‘RProtoBuf’ is now warned about in ‘R CMD check’, and will be an error in future.
The misuse of ‘.C("name", ..., PACKAGE = foo)’ where ‘foo’ is an
arbitrary R object is now an error. (Seen in package ‘coxphf’ and
elsewhere.)