[Rcpp-devel] Using C++0x in g++ changes ifelse behaviour

  How to set g++ compiler flags using Rcpp and inline?
  http://stackoverflow.com/q/7063265/841830

I've worked out, and added an answer to the above. In a nutshell, set
settings$env$PKG_CXXFLAGS, where settings is the return of
getPlugin("Rcpp").

(I set the answer as "community wiki", so others can enhance the answer
if they wish.)

Darren