That will save a lot of heartburn with all the gcc ports, python, perl, and all the others that bake in a path to the SDK.
And it's how Apple is going now anyway. And helps ports build when they need a newer SDK than the versioned one that matches their system. This was undesirable in the 10.4 to 10.13 era, but it may be time to do it now for 11.x and up. and https://trac.macports.org/ticket/61866 and no doubt many more similar headaches to come… K
