I was trying to compile an application on porteus linux

gcc -Wall -O xyz.c -lpci -o xyz

/usr/lib/gcc/i486-slackware-linux/4.8.2/../../../../i486-slackware-linux/bin/ld: cannot find -lpci 
collect2: error ld returned 1 exit status

Can you please help me resolve this.

Thanks,

OMK