nsuperio compile error question

[Richard Smith]

I'm haveing a little difficulity with the nsuperio setup.

I keep getting a undefined reference to superio_NSC_pc87351_control

I see that nlbconfig generates a prototype reference

extern struct superio_control superio_NSC_pc87351_control;

in nsuperio.c but I don't see where the the actual struct definition 
is/should be.