Hello, I'm getting these errors when compiling file getbootstate.c in Scratchbox:

[sbox-FREMANTLE_X86: ~] > gcc -Wall -g getbootstate.c -o getbootstate

getbootstate.c: In function 'get_bsi':
getbootstate.c:234: warning: implicit declaration of function 'ioctl'
/var/tmp/ccmwLNCv.o: In function `get_rdmode':
/home/leli/getbootstate.c:256: undefined reference to `cal_init'
/home/leli/getbootstate.c:259: undefined reference to `cal_read_block'
/home/leli/getbootstate.c:260: undefined reference to `cal_finish'
collect2: ld returned 1 exit status

Am I doing something wrong?