[avr-gcc-list] sfr_defs.h: _SFR_IO_REG_P(SMPCR)

[E. Weddington]

In sfr_defs.h, the macro _SFR_IO_REG_P() is defined as well as 
comments in the file about a  "real world" example of using it with 
SMPCR to generate different code depending on the address of SMPCR. 

Has anybody used this macro successfully in C?
All I get is an error message about a missing binary operator before 
token "int".

Thanks
Eric
avr-gcc-list at http://avr1.org