Created attachment 284471 [details] Build log Package sys-apps/usbutils-003 doesn't compile without sys-devel/libtool. The build log is attached. Please, add sys-devel/libtool as buildtime dependency of sys-apps/usbutils.
Sorry, futher investigation showed this is not due sys-devel/libtool package, but due missing /usr/lib64/pkgconfig/libusb-1.0.pc which belongs to dev-libs/libusb. Also /usr/include/libusb-1.0/libusb.h accessed during build, it also from dev-libs/libusb.
Fixed in CVS.