I was requested to associate a package with this. Since it's an application I am writing that uses GTK3, and the problem seems to be internal to GTK3 handling of a menu item, I must therefore assume it must be in libgtk-3-dev since it provides the headers, functions, etc., for GTK developers.
I was requested to associate a package with this. Since it's an application I am writing that uses GTK3, and the problem seems to be internal to GTK3 handling of a menu item, I must therefore assume it must be in libgtk-3-dev since it provides the headers, functions, etc., for GTK developers.