Could someone please test weak undefined symbol?

[H . J . Lu]

I was told weak undefined symbol doesn't work on all arches with
-On (n > 1) and it works on ia32 only by accident:

http://gcc.gnu.org/ml/gcc-bugs/2001-03/msg00380.html
http://gcc.gnu.org/ml/gcc-bugs/2001-03/msg00381.html

I'd like to know how broken gcc is.

Thanks.


-- 
H.J. Lu (hjl@gnu.org)