depends libtool
depends libpciaccess

optional_depends systemd  "" "--disable-libudev" "for Linux UDEV support" "y"
optional_depends pciutils "" "--disable-pci"     "for PCI device discovery support"
optional_depends libxml2  "" "--disable-libxml2" "for XML2 support"
optional_depends cairo    "" "--disable-cairo"   "for cairo back-end support"

optional_depends libX11 "--with-x" "" "for X support"
