[R-pkg-devel] Using C++11 and compilation in sub-directories together

[Martyn Plummer]

On Wed, 2018-02-07 at 15:17 +0300, Alexander Loboda wrote:
> Dear all,
> 
> I'm trying to build a package that uses c++11 code and sub-directories 
> in src/ according to the "Writing R Extensions" manual, but it seems 
> like R CMD doesn't want to compile the code with c++11 flags when source 
> files(actually, corresponding object files) are listed in the OBJECTS 
> variable in the Makevars file. That is, if I do not use sub-directories, 
> everything is fine. All of the code is compiling with c++11 flags, but 
> when I try to add hierarchy in src/ directory and use the OBJECTS 
> variable, the compilation fails because of lack of c++11 flags. Makevars 
> file contains such content:
> 
> CXX_STD = CXX11
> 
> OBJECTS_SMTH = subdir/main.o
> OBJECTS = $(OBJECTS_SMTH)
> 
> It would be very nice if there is some possibility of using both of 
> these features. I'm using R 3.4.2 and Ubuntu 17.10.

There is no interaction between C++ standards and user-defined OBJECTS.
I have checked this on one of my own packages, which works perfectly
well when I move the sources into a sub-directory. 

If you want further help you will need to share your package source.

Martyn

> Thanks!
> Alex
> 
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> 
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