Intel and Pre-Tiger Compatibility
It sounds like Universal Binaries won’t really be universal. The programming guidelines strongly suggest that GCC 4 is required to build Universal Binaries. However, applications compiled with Xcode and GCC 4 only run on Mac OS X 10.3.9 and later (if C++ is used) or 10.3 and later (if plain C is used). Will developers have to ship two separate .app files? There are still lots of Panther, and even Jaguar users.
Also, how will Intel’s compilers (which are apparently much better than GCC) factor in?
