http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55120
--- Comment #3 from Daniel Krügler <daniel.kruegler at googlemail dot com> 2012-10-29 19:20:26 UTC --- (In reply to comment #2) > This is http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_closed.html#7 which > was > closed as NAD saying "This is what was intended" but I'm not sure what "this" > is. Not being Jason, but this one made curious: I think the "this" refers to "In short, it looks like a class with a virtual private base can't be derived from.". I double-checked by contacting Mike who confirmed that "There's no special treatment for access in indirect virtual base classes"