Re: "common" symbols are no longer common?

[Mouse <mouse%Rodents-Montreal.ORG@localhost>]

> I'm not sure I understand this correctly.

> Is this about several compilation units declaring
> 	extern int foo;
> and no-one declaring
> 	int foo;
> and the question whether linking them together regards foo as undefined?

No; it's about multiple compilation units declaring
	int foo;
(and at most one CU doing similarly but with an initializer).

In the common model, this generates a common symbol foo (or, with the
initializer, a data-segment definition of foo).  In the def/ref model,
it generates a data-segment definition even with no initializer.

/~\ The ASCII				  Mouse
\ / Ribbon Campaign
 X  Against HTML		mouse%rodents-montreal.org@localhost
/ \ Email!	     7D C8 61 52 5D E7 2D 39  4E F1 31 3E E8 B3 27 4B