Use inotify for HIDAPI joystick enumeration if not using udev This improves SDL's ability to detect HIDAPI joystick hotplug in a container environment because we cannot reliably receive events from udev in a container. For a more detailed explanation of why this issue happens with containers, please check the previous commit "joystick: Use inotify to detect joystick unplug if not using udev" (b0eba1c5). Signed-off-by: Ludovico de Nittis <ludovico.denittis@collabora.com>