With the `pciutils' port installed, the manpage setpci(8) is available. It mentions two times the pcilib(7) manpage, in the `PCI access options' paragraph and in the `SEE ALSO' section.
pcilib(7) belongs to Linux OSs and is not available in any version of FreeBSD. This reference should be removed.
The whole manpage (as the other manpages of the same `pciutils' port) should be checked for other similar wrong references, if any.