This is the number one thing that turned me off of the Apple development ecosystem. Their absolute insistence on providing headers-only distributions of their l

This is the number one thing that turned me off of the Apple development ecosystem. Their absolute insistence on providing headers-only distributions of their libraries. It makes absolutely no sense. They're not protecting some closely guarded trade secret here, it's just a bunch of Objective-C UI code. And then the moment you need to change the color of something... or change the most trivial implementation detail in a base class, you're left completely starting from scratch.