Installing GCC 4.7.1 on OS X

Question

I am trying to install GCC 4.7.1 on my Mac because I want to update the LLVM GCC 4.2 given in XCode.

I have downloaded GCC 4.7

Answer 1

Install MacPorts and run:

$ sudo port selfupdate
$ sudo port install gcc47

It will take care of correctly configuring and installing gcc (4.7.2 at the time of writing) and all dependencies.