bucts build failure under NetBSD

/usr/pkg/gcc49/bin/gcc -o bucts bucts.o -L/usr/local/lib -lpci
bucts.o: In function `bucts':
bucts.c:(.text+0x217): undefined reference to `pci_read_long'
bucts.o: In function `main':
bucts.c:(.text+0x381): undefined reference to `iopl'
bucts.c:(.text+0x3f5): undefined reference to `pci_alloc'
bucts.c:(.text+0x403): undefined reference to `pci_init'
bucts.c:(.text+0x411): undefined reference to `pci_scan_bus'
bucts.c:(.text+0x42c): undefined reference to `pci_fill_info'
collect2: error: ld returned 1 exit status
Makefile:13: recipe for target 'bucts' failed
gmake: *** [bucts] Error 1