When I was taking my ebuild quizzes, I asked for someone to clarify the implicit system dependency that we have enshrined in the devmanual:
https://bugs.gentoo.org/show_bug.cgi?id=485356 There is... some agreement, but also special cases and special-special cases that are folklore-only at this point. To me it seems like a fine thing to ask the council to sort out, so I'm asking here for discussion. Can we come up with an idiot-proof list (or FLOWCHART, even!) of what should and should not be excluded from *DEPEND?