Restoring PPC, SDK 10.4/10.5 and GCC 4.0 Support to Xcode4 Unfortunately Apple decided to drop support for PPC, SDKs 10.4/10.5 and GCC 4.0 in Xcode4. This hasn't been done for technical reasons, though, but only because Apple wanted to do that. If you have a parallel installation of Xcode3 on your Mac, you can easily restore all that functionality to Xcode4. read more: http://bit.ly/gBGaNO