[Rd] R 3.4 has broken C++11 support

Angerer, Philipp philipp.angerer at helmholtz-muenchen.de
Tue Apr 18 16:18:20 CEST 2017

Whoops, sorry. The links are supposed to be:

[This commit]: https://github.com/wch/r-source/commit/45899dba734cbd80a77432af9a3a7829a9ad48da
[the documentation]: https://github.com/wch/r-source/blob/45899dba734cbd80a77432af9a3a7829a9ad48da/config.site#L264

----- Ursprüngliche Mail -----
Von: "Angerer, Philipp" <philipp.angerer at helmholtz-muenchen.de>
An: "r-devel" <r-devel at r-project.org>
Gesendet: Dienstag, 18. April 2017 15:11:52
Betreff: R 3.4 has broken C++11 support


[This commit] (I’m using the mirror to have a working link) broke C++11 compilation. 

Before (and still now, according to the comments in the configure script), it’s sufficient to just have “SystemRequirements: C++11” in the DESCRIPTION file. 

But now “R CMD install” fails with “C++11 standard requested but CXX11 is not defined”, which is, according to [the documentation], a lie. 

I can’t even circumvent this, as setting “CXX11=$(CXX)” in the src/Makevars file fails with “CXX definition recursive”, and hardcoding “CXX11=g++” is a bad idea. 

Did I do sth. wrong or is the C++11 support in R just broken atm.? 

Best, Philipp 

PS: After addressing all points in the submission of my popular package “IRkernel”, I didn’t get any feedback, and the file just vanished from the incoming directory in CRAN. I asked about it multiple times but got no answer. What can I do now? 


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