How do I use gcc 4.5 in XCode 4?

I have install g++-4.5, as I'm interested in the C++0x stuff (done by sudo port install gcc45). Now I've made sure it's my default comp开发者_C百科iler (using gcc_select) and all of my Makefile projects do just fine compiling with 4.5.

Now I'm starting a project in xCode 4. How do I get the same C++0x features from within xCode, a.k.a. tell xCode to use g++-4.5?

These two bloggers describe hacking together an Xcode plugin to use one's own build of clang. I imagine you could use the same thing but substitute gcc 4.5's path.

http://belkadan.com/blog/2011/07/Using-Clang-from-SVN-in-Xcode/ http://shapeof.com/archives/2010/01/using_the_latest_llvm_with_xcode.html

I've been meaning to try, and found your question in my research.