Originally Posted by wawa
what makes you think it isnt? except, it hasnt been done yet.
The main reason I think it wouldn't be technically useful is reliance on actual features of different compiler. That's also the main reason I think it wouldn't be technically feasible. It's nice to have, and taken for granted if you're doing GNU bloatware, but not always an option if your target is a 512 kB ROM and you can't just buy more address lines.