Worthy to note that the "clean-room" doctrine is not required and even discouraged legally, in favor of more direct source code reading and idea extraction (See

Worthy to note that the "clean-room" doctrine is not required and even discouraged legally, in favor of more direct source code reading and idea extraction (See Sega v. Accolade and Sony v. Connectix, in which the latter court commented on clean-room being inefficient and the kind of wasted effort that fair use was designed to prevent) The whole point of the idea/expression dichotomy is that copyright doesn't protect ideas. To that end, extracting the uncopyrightable elements out of copyrightable code is more than legal and court-endorsed. Wine's approach just makes me sad, lots of wasted effort on black-box testing where a disssembly of the real code would be legally in the clear and allow it to advance at much better speeds.