Some implementations require the [N] to suffixed to the variable name. Error message example: 'syntax error: Array size must appear after variable name' Follow up with https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5123 of https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5119 Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5137>