This is a pretty huge step. C++ support in Clang has always lagged behind, but the Clang internals is all C++ -- as mentioned in the blog it isn't self-hosting yet, just self-building, but this is major step in making Clang a true replacement for GCC.<p>Compilers revolutions don't happen overnight, but rejoice, you are seeing one happen right now.<p>I personally can't wait to see systems like OSX & FreeBSD use Clang as their default compilers, which might happen in the next few years.