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I'm not sure that it does. In fact the Mountain Lion upgrade deleted the command line toolchain from my machine. I had to go into Xcode and manually tell it to re-download the "Command Line Tools" optional extension.



That's just the stuff that goes in /usr/bin, right? Aren't the files always present in /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin etc.?


Correct. And you can always run it using xcrun (e.g. xcrun clang).




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