I noticed this in Xcode 4.2. My best guess is that armv7f adds some floating-point support and armv7k is security extensions (at least based on historical nomenclature). Are these Apple specific architecture definitions? Is there any developer documentation available? Cheers, Joe Abbey Software Architect Arxan Technologies, Inc. 1305 Cumberland Ave, Ste 215 West Lafayette, IN 47906 W: 765-889-4756 x2 C: 765-464-9893 jabbey at arxan.com <mailto:jabbey at arxan.com> www.arxan.com <http://www.arxan.com/> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20110712/dde7b472/attachment.html>