These are good to go, =dev-libs/libusb-1.0.9 =dev-libs/libusb-compat-0.1.4
amd64 stable
x86 stable
It looks like most arches have no need for libusb-compat.
(In reply to comment #3) > It looks like most arches have no need for libusb-compat. Err, it's a replacement for dev-libs/libusb:0. Everyone needs it.
ppc/ppc64 stable
Stable for HPPA.
arm stable
alpha/ia64/m68k/s390/sh/sparc stable