[Rcpp-devel] OpenMP and Rcpp - compiler error

I've been able to upgrade my compiler to g++ 4.6 on the Mac, and I also
checked this on a Red Hat Linux system with g++ 4.4.  In both cases, the
OpenMP code does compile and run, so I agree that it must have been a
compiler issue.  However, 4.6 appears to be an experimental version, with
some odd quirks (like not recognizing the -arch option).  I was able to
find only a binary for 4.6, and compiling 4.5 takes a very, very long
time.  So I'm wondering if you could suggest a source for a binary of a
stable version of gcc for the Mac, or possibly suggest a way that Rcpp
could run under the compiler that ships with Snow Leopard.