Created attachment 306093 [details]
Screenshot of the issue

This is against git master of everything in jhbuild btw.

Created attachment 306246 [details] [review]
mapMarker: Use Gdk.Rectangle

Maps was throwing errors when trying to assign a Cairo.RectangleInt to
GtkPopover.pointing_to property, the weird thing is what change (in gjs
or whatever component) caused this problem.

It's also weird that, if I remember correctly, I was unable to create
Gdk.Rectangle objects in gjs since it's not a GObject class, but
a cairo_rectangle_int_t alias.

Review of attachment 306246 [details] [review]:

Looks fine.

(In reply to Damián Nohales from comment #3)
> Created attachment 306246 [details] [review] [review]
> mapMarker: Use Gdk.Rectangle
> 
> Maps was throwing errors when trying to assign a Cairo.RectangleInt to
> GtkPopover.pointing_to property, the weird thing is what change (in gjs
> or whatever component) caused this problem.
> 
> It's also weird that, if I remember correctly, I was unable to create
> Gdk.Rectangle objects in gjs since it's not a GObject class, but
> a cairo_rectangle_int_t alias.

Probably this?

https://git.gnome.org/browse/gtk+/commit/?id=724cc00f9baa8a808195eebfea686cef1d63d12c

(In reply to Jonas Danielsson from comment #5)
> Probably this?
> 
> https://git.gnome.org/browse/gtk+/commit/
> ?id=724cc00f9baa8a808195eebfea686cef1d63d12c

Eureka!

Attachment 306246 [details] pushed as 8bc74ec - mapMarker: Use Gdk.Rectangle