GCC has been on the way out for a long time since they switched to GPLv3. The latest GCC version provided by Apple was 4.2 which is really quite outdated now.

GCC has been on the way out for a long time since they switched to GPLv3. The latest GCC version provided by Apple was 4.2 which is really quite outdated now. Clang is a faster and BSD-licensed compiler that Apple is putting all its weight behind now. LLVM-GCC has also been deprecated as it was removed as-of LLVM 3.0. Clang is the future and it's the default compiler with the Command Line Tools. We just need to wait for upstreams to fix the various issues. It's worth noting that this is why monocultures are bad. For all the love of GCC (and it is great) we now have a huge quantity of open-source software that only compiles with one compiler. This is a shame and hopefully Clang will help rectify that.