Undefined reference to _D3std6string9toStringzFNaNbNeMNkAyaZPya with ldc2

[Dadoum]

gtk-d:gtkd 3.9.0: target for configuration "library" is up to date.
gtk-d:gstreamer 3.9.0: target for configuration "library" is up to date.
gtk-d:peas 3.9.0: target for configuration "library" is up to date.
gtk-d:sv 3.9.0: target for configuration "library" is up to date.
gtk-d:vte 3.9.0: target for configuration "library" is up to date.
sampleproj ~main: building configuration "application"...
Linking...
Loader.d:433 : erreur : référence à « _D3std6string9toStringzFNaNbNeMNkAyaZPya » non définie
Loader.d:419 : erreur : référence à « _D3std6string9toStringzFNaNbNeMNkAyaZPya » non définie
collect2: erreur: ld a retourné le statut de sortie 1
Error: /usr/bin/cc failed with status: 1
/usr/bin/ldc failed with exit code 1.

translation: Undefined reference to= référence...non définie

[MikeWey]

If you updated the compiler recently you may need to force dub to rebuild GtkD, this look like an error that heapons when updating the compiler. An undefined reference to a symbol in Phobos.

[Dadoum]

Also getPreferredWidth seems to have problems when overriden. It asks both two use (int minimum, int natural) and (out int, out int)

[Dadoum]

And I cleaned. But it could be a compiler issue since gdc and dmd works well.

[MikeWey]

I can't reproduce the getPreferredWidth issue locally with GtkD master and ldc2 1.25.1.

[Dadoum]

Can you give me your code snipet (I am not sure if I'm doing that correctly)

[MikeWey]

Can you give me a snipet that doesn't work, that is a lot easier troubleshooting.

[Dadoum]

class TextEditorMargin: Box {
    import gobject.c.functions : g_object_newv;
    import gtk.c.types;
    import gtkd.Implement;

    mixin ImplementClass!GtkBox;

    this() {
        super(Orientation.VERTICAL, 0);
        addOnDraw(&onDraw);
    }

    public override void getPreferredWidth(out int minimumWidth, out int naturalWidth) {
        int minimumWidthSuper, naturalWidthSuper;
        super.getPreferredWidth(minimumWidthSuper, naturalWidthSuper);
        minimumWidth = max(minimumWidthSuper, 12);
        naturalWidth = max(naturalWidthSuper, 12);
    }

    public bool onDraw(Context cr, Widget sender) {
        cr.paint();
        return true;
    }
}

[MikeWey]

This is a problem with gtkd.Implement, that currently only seems to handle out and ref for gtkD classes.

[Dadoum]

Can I do anything to fix this ?

[MikeWey]

Should be fixed now for this case, but not all types are handles properly yet.

[Dadoum]

Okay, but the function does not seems to be called... but not sure about that; and anyway I think you forgot to remove some debug output