[R-pkg-devel] structure of R package

[Duncan Murdoch]

On 10/07/2018 9:48 AM, Τόλης Χαλκής wrote:
> Dear all,
> 
> this period i am working on a gsoc project. We develop a c++ library with a
> R interface using Rcpp and we plan to submit it to CRAN. We use the default
> Rcpp package structure in a folder /root/R-proj. The c++ headers files are
> into a folder /root/include outside the R-proj folder. In /root/R-proj/src
> we have he .cpp main file and in makevars we include all the files from
> /root/include.
> 
> The package can be installed successfully without any problem but if we run
> devtools::check() in /root/R-poj , it returns an error because it seems
> that it is not able to see files outside R package main folder which is
> /root/R-proj.
> 
> Question: Is this ok or we have to change our package structure and add
> include folder into /root/R-proj?

Yes, you need to do the latter, or (if the headers are for standard 
libraries that users should obtain elsewhere) add a configure script so 
that R can find them on a user's system, and note the requirement in the 
DESCRIPTION file SystemRequirements field.  It's better if the .tar.gz 
file is self-contained.

Duncan Murdoch