> > +if config_host.has_key('CONFIG_USB_LIBUSB') > > The problem is in this condition as it's evaluated as false. When I > replace it with libusb.found(), everything works as it used to. Correct fix, paolo has a pending pull request containing it. > Unfortunately I don't know what the real goa behind using > CONFIG_USB_LIBUSB here was to see whether my approach is good. Used to be the correct approach before libusb detection was switched from configure to meson. take care, Gerd