And how will you use that API? If it is based on things like headers, you can no longer have a copy of that header to refer against. The compiler can no longer

And how will you use that API? If it is based on things like headers, you can no longer have a copy of that header to refer against. The compiler can no longer read that header into memory, as that's a copy. The use of an API will be copyrightable too. Now you understand the depths of the disaster this will be. This is a legal apocalypse for software.