http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55422
--- Comment #4 from cookevillain at yahoo dot com 2012-11-21 21:53:48 UTC --- (In reply to comment #3) > Looks like the first example is just an undefined behavior in which case GCC > isn't obliged to issue an error. Quite true. I just thought that the diagnostic should be consistent. In addition, it is rare to use extern at block scope but a function declaration is automatically `extern'ed in such case so this linkage inconsistency is even harder to spot without a diagnostic when the inner `extern' is omitted.
