The error when I look it up on Google says that the file is not in the right directory location.
Then you have misunderstood what "scope" is.
You have also misunderstood what the "local groups" section of the forum is all about (unless you mistook "local" for something to do with scope)
I do suggest a rewrite of the error messages
Try putting your suggestions to the maintainers of gcc; this has nothing to do with Arduino.