OS X 10.9 gcc links to clang

Solution 1:

It has been this way for a long time already. The "GCC" that came with 10.8 was really GCC front-end with LLVM back-end.

The best way to get GCC is via Homebrew. After the one-line homebrew install command on the bottom of the linked page, you just need:

$ brew install gcc49

Unlike macports, Homebrew doesn't clutter your system dirs and it's much better at managing versions and uninstalls. It also doesn't require the crutch known as sudo.

Solution 2:

You'd have to install it from macports:

$ sudo port install gcc49

However I am not certain how you'd integrate gcc into Xcode 5, however you don't mention why you cannot use clang?

Solution 3:

Accessible and up to date GCC packages are at http://hpc.sourceforge.net/