Could you guys make your clang-based frontend (http://llvm.org/devmtg/2014-04/PDFs/Posters/ClangIntel.pdf) available for linux also?
Your EDG frontend has a lot of bugs with c++11/14 code and it would be much easier to use clang, which has better c++11/14 support. I can't imagine it would be much harder than supporting OS X.