I have some strange troubles with Rcpp - it uses unpredictable C++ compiler. This question is somewhat similar to this question.
I\'m on OSX, I have 2 complilers - defau
I only read one line of your question and stopped there:
I have some strange troubles with Rcpp - it uses unpredictable C++ compiler
That is both wrong and also inflammatory. Please read the R documentation included with your version of R and learn how R sets these things.
Rcpp does nothing extra. All this is default R behaviour:
As a user you can set this in ~/.R/Makevars
As a package author aiming for portable and CRAN-compatible packages you cannot but have to use, say, configure at package built-time.
This is all documented and has been discussed before.