MacOSX menu item Quit not working

Hi,

First of all, I'd like to say thanks for this amazing library! I've used it in my cross-platform project:
https://gitlab.com/bztsrc/usbimager
which is an extremely small (ca. 256k) compressed disk image writer with a minimalistic GUI. I use libui for Cocoa and for GTK under Linux.

I had issues with linking the provided examples under Windows, so I gave up on that part and implemented win32 myself. Any reason why you've used C++ there instead of C? Just curious, off topic.

I also had some other issues under MacOSX, mostly with multiple threads and progressbars, but I was able to solve them all. There's one thing left though, which is kept reported over and over again. Under MacOSX the menu contains a grayed out Quit and the Cmd+Q shortcut does not work either.

I took a deep dive in the source, and I've found https://github.com/andlabs/libui/blob/master/darwin/menu.m#L176 which looks okay to me and also has the keybinding set. Yet Quit is not working. I don't use multiple windows, I don't need user defined menu items, nothing extra. I've found a ticket on the Go version with exactly the same problem, and it was closed pointing to issue #321. However there's no explanation in that issue on how to enable Quit.

So may question is, what I'm doing wrong? How should I change the code to have a working Quit menu item? Here's my code: https://gitlab.com/bztsrc/usbimager/-/blob/master/src/main_libui.c#L440

Do I need some special option or something? (However I did not see any "if"s in "makeMenubar" nor in "buildApplicationMenu"). If I need to add a Quit item manually, how can I do it? "uiMenuAppendQuitItem" requires an uiMenu pointer, but I don't want to call "uiNewMenu", as it has to be added to the already existing application menu. What is the correct way to do this?

Thanks for this awesome library,
bzt