How to point Xcode to an old SDK so it can be used as a “Base SDK”?

Question

My Mac\'s Setup:

Volume A:
OS X 10.8
Xcode 4.5 or later - 10.6 SDK IS NOT available as Base SDK

Volume

Answer 1

Why not just symbolic link the SDK's? "ln -s"? If that doesn't work there's going to be some plist hacking required.