Hi. I have a MacBook Pro Core Duo 2.16Ghz running OS X v10.4.8. On top of that I have Xcode 2.4.1 installed. I want to make my project as a Universal Binary, but it seems that no matter what I do all I get is an Intel-specific binary. If I go to Project->Project Settings I can verify that my target SDK is "Mac OS X 10.4 (Universal)" in the General tab, and in the Build tab I have both i386 and ppc set as architectures, as shown in these two screenshots: However, if I clean & rebuild then go to my application in the bundle and get Info it shows that it is purely an "Application (Intel)". Similarly, PowerPC users have complained that it doesn't work on their machine. The only possibly weird thing about my application is that it is SDL based. I have checked the SDL framework I have installed and am embedding and it is a Universal build. So what might I be doing wrong?