[coreboot] need help with #define macro

[Joseph Smith]

Hello,
I'm trying to setup a #define macro that can be used through out the
program and also part of another macro. I know this won't work but you may
get the idea of what I am trying to do:

#define PARALLEL_PORT parport0
#define PARPORT_BASE_FILE "/proc/sys/dev/parport/"PARALLEL_PORT"/base-addr"
...
...
fd = open("/dev/PARALLEL_PORT",O_RDWR);
...
printf(PARPORT_BASE_FILE\n);
...

Any help on this would be much appreciated.