https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123241
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> --- I was thinking about adding them last week. But the way I read it, the typedefs are not required. The first sentence applies when N = 128, so the types are optional. The "if an implementation defines integer types with the corresponding width" condition applies when N = 8, 16, 32, and 64. But not when N = 128.
