'Rcpp' Interface for Querying System Configuration Variables.
RcppGetconf 
Rcpp Read Access to System Configuration Settings
What is this?
Modern POSIX systems have a binary getconf which can access the system calls sysconf, pathconf and confstr. This package brings the values back to R.
Requirements
This package requires access to these system calls, and definitions of its data structures in the system header files. It works on Linux and OS X and should work on other POSIX-compliant OSs. Contributions would be very welcome.
Installation
The package is on CRAN and can be installed via a standard
R> install.packages("RcppGetconf")
command.
Status
It contains two useful functions right now. It currently builds cleanly on Linux and OS X; reports from other builds would (and PRs where needed) would be greatly appreciated.
Author
Dirk Eddelbuettel
License
GPL (>= 2)