Strange FileChooserDialog behaviour in GTK 4.10

Platform Language bindings
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We head some headache, as the example GTK4 for Graphical User Interfaces stopped working with GTK 4.10. Actually, they released Nim 1.6.12 some days ago, so first guess was a compiler issue. Running that example, gives an empty file area and a lot of

(filechooserdialog:11122): Gtk-CRITICAL **: 21:59:32.837: Error building template for list item: .:0:0 Invalid object type 'GtkFileChooserCell'

Finally we discovered, that instead of the standard Nim compile command “nim c file.nim” we now have to use something like

nim c --passL="-lgtk-4" fc.nim

The “–passL=”-lgtk-4" makes it working. I wonder if other language bindings are concerned as well, and what exactly has to be included by the linker.

References: Gintro fails with latest 1.9.1, and GtkFileChooser fails with GTK 4.10 · Issue #219 · StefanSalewski/gintro · GitHub

2

The GirCore bindings (C#) have the same issue. As we don’t link to GTK but search the binary during runtime there is currently no solution for us.

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This is a bug in GTK: the file chooser widget is using a private type, but not ensuring that the type is registered.

Should be fixed by: Ensure GtkFileChooserCell's type (!5696) · Merge requests · GNOME / gtk · GitLab

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