Posted by Dirk Eddelbuettel on Oct 27, 2013; 2:56pm URL: http://quantlib.414.s1.nabble.com/SWIG-R-with-c-11-tp14621p14624.html
If it helped, there is an M4 snipped at the GNU autoconf archive which I
brought to the attention of the R Core team too. If and when they use, we
get a #define header to see if C++11 is available. Until then, we might as
well toss it into QL's autoconf logic, no?