Comment 5 for bug 1193025

For completeness sake, here's clang -v (from Xcode 4.6.2):

$ clang -v
Apple LLVM version 4.2 (clang-425.0.28) (based on LLVM 3.2svn)
Target: x86_64-apple-darwin11.4.2
Thread model: posix

Apple's clang source is available here: http://www.opensource.apple.com/source/clang/ although the source for this particular point release has apparently not been made public yet.