0001 - i had reason to put local definitions on the top, it is way more readable to see right away what local vars function has, so please stick to it. 0004 - Did you ever hear that executing another code in condition is damn annoying to trace? :) 0007 - I placed it into the conditionals to be clear what is happening, what if there will be added another if without the push... 0010 - 0011 - I was serious with getting crashes on some packages with this approach (suprisingly i first really tried to make the eclass backcompat as much as possible), did you get anyone else to ack this thing? FWIW it is like fetching new packages, I can agree that dowloading whole qt or libreoffice can make someone sad, but it is just few megs compared to the rest of your weekly world update. -> You are introducing possibility to nicely fail without any simple resolution why for almost no benefit.
Cheers Tom