[Rcpp-devel] Package checking using R-devel (3.1) and Rcpp

[Simon Zehnder]

Hi Rob,

when I download the latest version Rclusterpp 0.12.1 I see in the Makevars the typical PKG_LIBS += `$(R_HOME)/bin/Rscript -e "Rcpp:::LdFlags()"` -fopenmp. In there the function Rcpp:::LdFlags() calls internally RcppLdFlags() (see line 84 in the RcppLdpath.R file). Looking into the R folder of your package and there into the RclusterppLdpath.R file I detect in line 44 the call: Rcpp:::RcppLdFlags(). The .Rd file on ':::' tells in its Note, that it is not good design to use ::: in an own package, as package developers have probably had a reason to not export the function, in your case RcppLdFlags() - which is indeed not in the exported functions of NAMESPACE in Rcpp. 

Best

Simon

On Sep 24, 2013, at 10:21 PM, Robert Bruggner <rbruggner at gmail.com> wrote:

> Hi Rcpp-devel,
> 
> I'm new to the Rcpp game so apologies if this question has be erroneously posted to this list. 
> 
> I've recently taken over maintenance of a package (Rclusterpp) that makes heavy use of Rcpp & RcppEigen and have been trying to build and check the package for submission to CRAN. I'm currently working against R-devel (3.1, Mac OS X 10.8, G++ 4.8 via macports) and am able to successfully run the R CMD BUILD of the package. However, when I run R CMD CHECK --as-cran <mypackage.tar.gz>, I encounter the following NOTEs:
> 
> * checking dependencies in R code ... NOTE
> Unexported object imported by a ‘:::’ call: ‘Rcpp:::RcppLdFlags’
> See the note in ?`:::` about the use of this operator.
> See the information on DESCRIPTION files in the chapter ‘Creating R
> packages’ of the ‘Writing R Extensions’ manual.
> 
> To the best of knowledge, my package makes no calls to Rcpp:::RcppLdFlags so I'm not sure what's going on here. 
> 
> I do not get the same NOTE messages when building and checking using the current stable version of R (3.0.1), only the new development version. Does anyone have a suggestion as to how I might be able to debug the problem? I don't think this message causes any functional problems with the package but ask because the package was not accepted for hosting on CRAN due to these NOTE messages.
> 
> Cheers, 
> 
> -Rob
> 
> 
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