Deprecated G_TYPE_INSTANCE_GET_PRIVATE in vcl/unx/gtk/gloactiongroup.cxx

[Arkadiy Illarionov]

I work on fix here:
https://gerrit.libreoffice.org/#/c/79663/

Regards,
Arkadiy Illarionov


On Thu, Sep 26, 2019 at 1:12 PM Stephan Bergmann <sbergman at redhat.com>
wrote:

> Ever since
> <
> https://gerrit.libreoffice.org/plugins/gitiles/core/+/36c1c2c2754dda6e8d2b2802e3881465adaafbec%5E!/>
>
> "Added GLOMenu and GLOActionGroup. Menu is published with actions (not
> working)", g_lo_action_group_init in vcl/unx/gtk/gloactiongroup.cxx
> contains a call
>
> >     group->priv = G_TYPE_INSTANCE_GET_PRIVATE (group,
> >                                                  G_TYPE_LO_ACTION_GROUP,
> >                                                  GLOActionGroupPrivate);
>
> that GLib 2.62 (as seen on Fedora 31) now warns about:
>
> > [CXX] vcl/unx/gtk3/gtk3gloactiongroup.cxx
> > In file included from vcl/unx/gtk3/gtk3gloactiongroup.cxx:3:
> > vcl/unx/gtk3/../gtk/gloactiongroup.cxx:317:19: warning: G_ADD_PRIVATE
> [-W#pragma-messages]
> >     group->priv = G_TYPE_INSTANCE_GET_PRIVATE (group,
> >                   ^
> > /usr/include/glib-2.0/gobject/gtype.h:643:145: note: expanded from macro
> 'G_TYPE_INSTANCE_GET_PRIVATE'
> > #define G_TYPE_INSTANCE_GET_PRIVATE(instance, g_type, c_type)
>  ((c_type*) g_type_instance_get_private ((GTypeInstance*) (instance),
> (g_type))) GLIB_DEPRECATED_MACRO_IN_2_58_FOR(G_ADD_PRIVATE)
> >
>                                                                        ^
> > /usr/include/glib-2.0/glib/gversionmacros.h:831:49: note: expanded from
> macro 'GLIB_DEPRECATED_MACRO_IN_2_58_FOR'
> > # define GLIB_DEPRECATED_MACRO_IN_2_58_FOR(f)
>  GLIB_DEPRECATED_MACRO_FOR(f)
> >                                                 ^
> > /usr/include/glib-2.0/glib/gmacros.h:990:38: note: expanded from macro
> 'GLIB_DEPRECATED_MACRO_FOR'
> > #define GLIB_DEPRECATED_MACRO_FOR(f) _GLIB_GNUC_DO_PRAGMA(GCC warning #f)
> >                                      ^
> > /usr/include/glib-2.0/glib/gmacros.h:988:33: note: expanded from macro
> '_GLIB_GNUC_DO_PRAGMA'
> > #define _GLIB_GNUC_DO_PRAGMA(x) _Pragma(G_STRINGIFY (x))
> >                                 ^
> > <scratch space>:57:6: note: expanded from here
> >  GCC warning "G_ADD_PRIVATE"
> >      ^
> > 1 warning generated.
>
> (And while Clang keeps that a warning even with -Werror, it causes a
> true error breaking the build when building with GCC and --enable-werror.)
>
> <
> https://developer.gnome.org/gobject/stable/gobject-Type-Information.html#G-TYPE-INSTANCE-GET-PRIVATE:CAPS>
>
> states:  "G_TYPE_INSTANCE_GET_PRIVATE has been deprecated since version
> 2.58 and should not be used in newly-written code.  Use G_ADD_PRIVATE
> and the generated your_type_get_instance_private() function instead"
>
> But I have no idea how to fix that.  So if anybody can clean it up, that
> would be great.  (Failing that, we can always add a sledgehammer
>
> > #define GLIB_DISABLE_DEPRECATION_WARNINGS
>
> near the top of vcl/unx/gtk/gloactiongroup.cxx, similar to what is done
> in
> <
> https://gerrit.libreoffice.org/plugins/gitiles/core/+/59f96e1736c14575aee7575e73b50e96cf467bb0%5E!/>
>
> "While I could swear that it worked yesterday".)
>
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