I've upgraded OSX Lion to Mountain Lion and reinstalled the Command Line Tools (as the upgrade deleted them). From then xcrun does not work anymore. The xcode-select is set to /usr/bin, the binaries are in that directory too, but if I run xcrun with an argument (ex. xcrun gcc) it displays this:
xcrun: Error: failed to exec real xcrun. (No such file or directory)
I've tried setting the path again with xcode-select and reinstalled the CLT. Nothing helped.
Any suggestions how to fix this?