In article <199603210451.WAA28006@taniemarie.solon.com>,
Peter Seebach  <seebs@taniemarie.solon.com> wrote:
> 	(Note: Yes, this is really illegal.  No, ANSI does not require a
> 	diagnostic, but yes, it really does invoke undefined behavior.)

It would be a good thing if when reporting standard bugs people would
reference the standard instead of saying "it really does". 

By the way, 5.1.2.2.1 (ISO, or 2.1.2.2.1 in ANSI, I guess) doesn't seem
to be the real reason for this. Note the weak wording: "can" (~= may)
rather than "shall" or "must". The actual reason is linkage problems,
and it's not stated explicitly.