buserror

Follows "brew doctor" reported mismatch is because I have the mountain lion toolchain 
installed (command line tools), but not the preliminary buggy xcode

---------------------------------------- brew doctor

Error: Your compilers are different from the standard versions for your Xcode.
If you have Xcode 4.3 or newer, you should install the Command Line Tools for
Xcode from within Xcode's Download preferences.
Otherwise, you should reinstall Xcode.