Bug#450746: gcc: Generates extnernal references for static variable.

[Matthias Klose <doko@cs.tu-berlin.de>]

Kurt Roeckx writes:
> Package: gcc-4.2
> Version: 4.2.2-3
> 
> Hi,
> 
> This program:
> static int foo();
> int bar() { foo(); }
> 
> When being compiled generates a warning:
> tst.c:1: warning: 'foo' used but never defined
> 
> And it actually creates an reference to an extneral symbol, just like
> static wasn't there.
> 
> $ nm tst.o
> 0000000000000000 T bar
>                  U foo
> 
> 
> Please turn this into an error.

why? you did declare foo, but didn't define it.