Trying to build a kernel with gcc-3.4 I've found that the
   optimisation settings of the current default kernel Makefile
   cause unreferenced static variables to be optimized away,
   regardless of an __attribute__((unused)).

FYI;

i've actually noticed this with an optimisation for the arm backend
i've written.  i think it's a bug in the new -funit-at-a-time code
but i'm yet to figure out where it is, or really be sure it is a bug.


.mrg.