[aur-general] libusb request

aur give this: "libusb is on the package blacklist, please check if it's available in the official repos." Why? libusb isn't any more in the official repos. Arch now have libusbx, but I still need libusb to at least test some software to see if it works well with it, because libusbx may be the present/future but so far officially only in Arch...