[darwinbuild-dev] installXcode3: cannot overwrite directory

When you try to "installXcode BuildRoot/" on an existing BuildRoot, you get many errors like the following one: cp: cannot overwrite directory BuildRoot///System/Library/Frameworks/CoreFoundation.framework/Versions/Current with non-directory /System/Library/Frameworks/CoreFoundation.framework/Versions/Current The attached tiny patch for installXcode3 solves that by deleting the respective frameworks in the BuildRoot first before copying the ones from the host in. Feel free to apply the patch if you think it's useful.