diff --git a/include/wx/gtk/private.h b/include/wx/gtk/private.h
index dfe8889798..4c52f53c50 100644
--- a/include/wx/gtk/private.h
+++ b/include/wx/gtk/private.h
@@ -16,6 +16,11 @@
 #include "wx/gtk/private/string.h"
 #include "wx/gtk/private/gtk2-compat.h"
 
+#ifndef G_VALUE_INIT
+    // introduced in GLib 2.30
+    #define G_VALUE_INIT { 0, { { 0 } } }
+#endif
+
 // pango_version_check symbol is quite recent ATM (4/2007)... so we
 // use our own wrapper which implements a smart trick.
 // Use this function as you'd use pango_version_check:
diff --git a/src/gtk/bmpcbox.cpp b/src/gtk/bmpcbox.cpp
index dc1e889a59..127b50d5e3 100644
--- a/src/gtk/bmpcbox.cpp
+++ b/src/gtk/bmpcbox.cpp
@@ -202,7 +202,7 @@ void wxBitmapComboBox::SetItemBitmap(unsigned int n, const wxBitmap& bitmap)
 
         if ( gtk_tree_model_iter_nth_child( model, &iter, NULL, n ) )
         {
-            GValue value0 = { 0, };
+            GValue value0 = G_VALUE_INIT;
             g_value_init( &value0, G_TYPE_OBJECT );
             g_value_set_object( &value0, bitmap.GetPixbuf() );
             gtk_list_store_set_value( GTK_LIST_STORE(model), &iter,
@@ -222,7 +222,7 @@ wxBitmap wxBitmapComboBox::GetItemBitmap(unsigned int n) const
 
     if (gtk_tree_model_iter_nth_child (model, &iter, NULL, n))
     {
-        GValue value = { 0, };
+        GValue value = G_VALUE_INIT;
         gtk_tree_model_get_value( model, &iter,
                                   m_bitmapCellIndex, &value );
         GdkPixbuf* pixbuf = (GdkPixbuf*) g_value_get_object( &value );
@@ -300,7 +300,7 @@ void wxBitmapComboBox::GTKInsertComboBoxTextItem( unsigned int n, const wxString
 
     gtk_list_store_insert( store, &iter, n );
 
-    GValue value = { 0, };
+    GValue value = G_VALUE_INIT;
     g_value_init( &value, G_TYPE_STRING );
     g_value_set_string( &value, wxGTK_CONV( text ) );
     gtk_list_store_set_value( store, &iter, m_stringCellIndex, &value );
diff --git a/src/gtk/checklst.cpp b/src/gtk/checklst.cpp
index 0a9d31840a..9c5e7065d1 100644
--- a/src/gtk/checklst.cpp
+++ b/src/gtk/checklst.cpp
@@ -15,6 +15,7 @@
 #include "wx/checklst.h"
 
 #include <gtk/gtk.h>
+#include "wx/gtk/private.h"
 
 //-----------------------------------------------------------------------------
 // "toggled"
@@ -111,7 +112,7 @@ bool wxCheckListBox::IsChecked(unsigned int index) const
     if(!res)
         return false;
 
-    GValue value = {0, };
+    GValue value = G_VALUE_INIT;
     gtk_tree_model_get_value(GTK_TREE_MODEL(m_liststore),
                              &iter,
                              0, //column
diff --git a/src/gtk/choice.cpp b/src/gtk/choice.cpp
index d8819a2abc..1d91fd0132 100644
--- a/src/gtk/choice.cpp
+++ b/src/gtk/choice.cpp
@@ -208,7 +208,7 @@ int wxChoice::FindString( const wxString &item, bool bCase ) const
     int count = 0;
     do
     {
-        GValue value = { 0, };
+        GValue value = G_VALUE_INIT;
         gtk_tree_model_get_value( model, &iter, m_stringCellIndex, &value );
         wxString str = wxGTK_CONV_BACK( g_value_get_string( &value ) );
         g_value_unset( &value );
@@ -239,7 +239,7 @@ void wxChoice::SetString(unsigned int n, const wxString &text)
     GtkTreeIter iter;
     if (gtk_tree_model_iter_nth_child (model, &iter, NULL, n))
     {
-        GValue value = { 0, };
+        GValue value = G_VALUE_INIT;
         g_value_init( &value, G_TYPE_STRING );
         g_value_set_string( &value, wxGTK_CONV( text ) );
         gtk_list_store_set_value( GTK_LIST_STORE(model), &iter, m_stringCellIndex, &value );
@@ -260,7 +260,7 @@ wxString wxChoice::GetString(unsigned int n) const
     GtkTreeIter iter;
     if (gtk_tree_model_iter_nth_child (model, &iter, NULL, n))
     {
-        GValue value = { 0, };
+        GValue value = G_VALUE_INIT;
         gtk_tree_model_get_value( model, &iter, m_stringCellIndex, &value );
         wxString tmp = wxGTK_CONV_BACK( g_value_get_string( &value ) );
         g_value_unset( &value );
diff --git a/src/gtk/dataview.cpp b/src/gtk/dataview.cpp
index c58858a7ff..e8786529c5 100644
--- a/src/gtk/dataview.cpp
+++ b/src/gtk/dataview.cpp
@@ -1875,7 +1875,7 @@ void wxDataViewRenderer::SetMode( wxDataViewCellMode mode )
     m_mode = mode;
     
     // This value is most often ignored in GtkTreeView
-    GValue gvalue = { 0, };
+    GValue gvalue = G_VALUE_INIT;
     g_value_init( &gvalue, gtk_cell_renderer_mode_get_type() );
     g_value_set_enum( &gvalue, gtkMode );
     g_object_set_property( G_OBJECT(m_renderer), "mode", &gvalue );
@@ -1936,7 +1936,7 @@ void wxDataViewRenderer::GtkApplyAlignment(GtkCellRenderer *renderer)
     else if (align & wxALIGN_CENTER_HORIZONTAL)
         xalign = 0.5;
 
-    GValue gvalue = { 0, };
+    GValue gvalue = G_VALUE_INIT;
     g_value_init( &gvalue, G_TYPE_FLOAT );
     g_value_set_float( &gvalue, xalign );
     g_object_set_property( G_OBJECT(renderer), "xalign", &gvalue );
@@ -1950,7 +1950,7 @@ void wxDataViewRenderer::GtkApplyAlignment(GtkCellRenderer *renderer)
     else if (align & wxALIGN_CENTER_VERTICAL)
         yalign = 0.5;
 
-    GValue gvalue2 = { 0, };
+    GValue gvalue2 = G_VALUE_INIT;
     g_value_init( &gvalue2, G_TYPE_FLOAT );
     g_value_set_float( &gvalue2, yalign );
     g_object_set_property( G_OBJECT(renderer), "yalign", &gvalue2 );
@@ -1976,7 +1976,7 @@ void wxDataViewRenderer::EnableEllipsize(wxEllipsizeMode mode)
 
     // we use the same values in wxEllipsizeMode as PangoEllipsizeMode so we
     // can just cast between them
-    GValue gvalue = { 0, };
+    GValue gvalue = G_VALUE_INIT;
     g_value_init( &gvalue, PANGO_TYPE_ELLIPSIZE_MODE );
     g_value_set_enum( &gvalue, static_cast<PangoEllipsizeMode>(mode) );
     g_object_set_property( G_OBJECT(rend), "ellipsize", &gvalue );
@@ -1989,7 +1989,7 @@ wxEllipsizeMode wxDataViewRenderer::GetEllipsizeMode() const
     if ( !rend )
         return wxELLIPSIZE_NONE;
 
-    GValue gvalue = { 0, };
+    GValue gvalue = G_VALUE_INIT;
     g_value_init( &gvalue, PANGO_TYPE_ELLIPSIZE_MODE );
     g_object_get_property( G_OBJECT(rend), "ellipsize", &gvalue );
     wxEllipsizeMode
@@ -2052,7 +2052,7 @@ bool GtkApplyAttr(GtkCellRendererText *renderer, const wxDataViewItemAttr& attr)
     {
         const GdkColor * const gcol = attr.GetColour().GetColor();
 
-        GValue gvalue = { 0, };
+        GValue gvalue = G_VALUE_INIT;
         g_value_init( &gvalue, GDK_TYPE_COLOR );
         g_value_set_boxed( &gvalue, gcol );
         g_object_set_property( G_OBJECT(renderer), "foreground_gdk", &gvalue );
@@ -2062,7 +2062,7 @@ bool GtkApplyAttr(GtkCellRendererText *renderer, const wxDataViewItemAttr& attr)
     }
     else
     {
-        GValue gvalue = { 0, };
+        GValue gvalue = G_VALUE_INIT;
         g_value_init( &gvalue, G_TYPE_BOOLEAN );
         g_value_set_boolean( &gvalue, FALSE );
         g_object_set_property( G_OBJECT(renderer), "foreground-set", &gvalue );
@@ -2071,7 +2071,7 @@ bool GtkApplyAttr(GtkCellRendererText *renderer, const wxDataViewItemAttr& attr)
 
     if (attr.GetItalic())
     {
-        GValue gvalue = { 0, };
+        GValue gvalue = G_VALUE_INIT;
         g_value_init( &gvalue, PANGO_TYPE_STYLE );
         g_value_set_enum( &gvalue, PANGO_STYLE_ITALIC );
         g_object_set_property( G_OBJECT(renderer), "style", &gvalue );
@@ -2081,7 +2081,7 @@ bool GtkApplyAttr(GtkCellRendererText *renderer, const wxDataViewItemAttr& attr)
     }
     else
     {
-        GValue gvalue = { 0, };
+        GValue gvalue = G_VALUE_INIT;
         g_value_init( &gvalue, G_TYPE_BOOLEAN );
         g_value_set_boolean( &gvalue, FALSE );
         g_object_set_property( G_OBJECT(renderer), "style-set", &gvalue );
@@ -2091,7 +2091,7 @@ bool GtkApplyAttr(GtkCellRendererText *renderer, const wxDataViewItemAttr& attr)
 
     if (attr.GetBold())
     {
-        GValue gvalue = { 0, };
+        GValue gvalue = G_VALUE_INIT;
         g_value_init( &gvalue, PANGO_TYPE_WEIGHT );
         g_value_set_enum( &gvalue, PANGO_WEIGHT_BOLD );
         g_object_set_property( G_OBJECT(renderer), "weight", &gvalue );
@@ -2101,7 +2101,7 @@ bool GtkApplyAttr(GtkCellRendererText *renderer, const wxDataViewItemAttr& attr)
     }
     else
     {
-        GValue gvalue = { 0, };
+        GValue gvalue = G_VALUE_INIT;
         g_value_init( &gvalue, G_TYPE_BOOLEAN );
         g_value_set_boolean( &gvalue, FALSE );
         g_object_set_property( G_OBJECT(renderer), "weight-set", &gvalue );
@@ -2114,7 +2114,7 @@ bool GtkApplyAttr(GtkCellRendererText *renderer, const wxDataViewItemAttr& attr)
         wxColour colour = attr.GetBackgroundColour();
         const GdkColor * const gcol = colour.GetColor();
 
-        GValue gvalue = { 0, };
+        GValue gvalue = G_VALUE_INIT;
         g_value_init( &gvalue, GDK_TYPE_COLOR );
         g_value_set_boxed( &gvalue, gcol );
         g_object_set_property( G_OBJECT(renderer), "cell-background_gdk", &gvalue );
@@ -2122,7 +2122,7 @@ bool GtkApplyAttr(GtkCellRendererText *renderer, const wxDataViewItemAttr& attr)
     }
     else
     {
-        GValue gvalue = { 0, };
+        GValue gvalue = G_VALUE_INIT;
         g_value_init( &gvalue, G_TYPE_BOOLEAN );
         g_value_set_boolean( &gvalue, FALSE );
         g_object_set_property( G_OBJECT(renderer), "cell-background-set", &gvalue );
@@ -2147,7 +2147,7 @@ wxDataViewTextRenderer::wxDataViewTextRenderer( const wxString &varianttype, wxD
 
     if (mode & wxDATAVIEW_CELL_EDITABLE)
     {
-        GValue gvalue = { 0, };
+        GValue gvalue = G_VALUE_INIT;
         g_value_init( &gvalue, G_TYPE_BOOLEAN );
         g_value_set_boolean( &gvalue, true );
         g_object_set_property( G_OBJECT(m_renderer), "editable", &gvalue );
@@ -2164,7 +2164,7 @@ wxDataViewTextRenderer::wxDataViewTextRenderer( const wxString &varianttype, wxD
 
 bool wxDataViewTextRenderer::SetTextValue(const wxString& str)
 {
-    GValue gvalue = { 0, };
+    GValue gvalue = G_VALUE_INIT;
     g_value_init( &gvalue, G_TYPE_STRING );
     g_value_set_string( &gvalue, wxGTK_CONV_FONT( str, GetOwner()->GetOwner()->GetFont() ) );
     g_object_set_property( G_OBJECT(m_renderer), "text", &gvalue );
@@ -2175,7 +2175,7 @@ bool wxDataViewTextRenderer::SetTextValue(const wxString& str)
 
 bool wxDataViewTextRenderer::GetTextValue(wxString& str) const
 {
-    GValue gvalue = { 0, };
+    GValue gvalue = G_VALUE_INIT;
     g_value_init( &gvalue, G_TYPE_STRING );
     g_object_get_property( G_OBJECT(m_renderer), "text", &gvalue );
     str = wxGTK_CONV_BACK_FONT( g_value_get_string( &gvalue ), const_cast<wxDataViewTextRenderer*>(this)->GetOwner()->GetOwner()->GetFont() );
@@ -2200,7 +2200,7 @@ void wxDataViewTextRenderer::SetAlignment( int align )
     else if (align & wxALIGN_CENTER_HORIZONTAL)
         pangoAlign = PANGO_ALIGN_CENTER;
 
-    GValue gvalue = { 0, };
+    GValue gvalue = G_VALUE_INIT;
     g_value_init( &gvalue, gtk_cell_renderer_mode_get_type() );
     g_value_set_enum( &gvalue, pangoAlign );
     g_object_set_property( G_OBJECT(m_renderer), "alignment", &gvalue );
@@ -2227,7 +2227,7 @@ namespace
 // set "pixbuf" property on the given renderer
 void SetPixbufProp(GtkCellRenderer *renderer, GdkPixbuf *pixbuf)
 {
-    GValue gvalue = { 0, };
+    GValue gvalue = G_VALUE_INIT;
     g_value_init( &gvalue, G_TYPE_OBJECT );
     g_value_set_object( &gvalue, pixbuf );
     g_object_set_property( G_OBJECT(renderer), "pixbuf", &gvalue );
@@ -2294,7 +2294,7 @@ static void wxGtkToggleRendererToggledCallback( GtkCellRendererToggle *renderer,
     wxDataViewToggleRenderer *cell = (wxDataViewToggleRenderer*) user_data;
 
     // get old value
-    GValue gvalue = { 0, };
+    GValue gvalue = G_VALUE_INIT;
     g_value_init( &gvalue, G_TYPE_BOOLEAN );
     g_object_get_property( G_OBJECT(renderer), "active", &gvalue );
     // invert it
@@ -2329,7 +2329,7 @@ wxDataViewToggleRenderer::wxDataViewToggleRenderer( const wxString &varianttype,
     }
     else
     {
-        GValue gvalue = { 0, };
+        GValue gvalue = G_VALUE_INIT;
         g_value_init( &gvalue, G_TYPE_BOOLEAN );
         g_value_set_boolean( &gvalue, false );
         g_object_set_property( G_OBJECT(m_renderer), "activatable", &gvalue );
@@ -2344,7 +2344,7 @@ bool wxDataViewToggleRenderer::SetValue( const wxVariant &value )
 {
     bool tmp = value;
 
-    GValue gvalue = { 0, };
+    GValue gvalue = G_VALUE_INIT;
     g_value_init( &gvalue, G_TYPE_BOOLEAN );
     g_value_set_boolean( &gvalue, tmp );
     g_object_set_property( G_OBJECT(m_renderer), "active", &gvalue );
@@ -2355,7 +2355,7 @@ bool wxDataViewToggleRenderer::SetValue( const wxVariant &value )
 
 bool wxDataViewToggleRenderer::GetValue( wxVariant &value ) const
 {
-    GValue gvalue = { 0, };
+    GValue gvalue = G_VALUE_INIT;
     g_value_init( &gvalue, G_TYPE_BOOLEAN );
     g_object_get_property( G_OBJECT(m_renderer), "active", &gvalue );
     value = g_value_get_boolean( &gvalue ) != 0;
@@ -2451,7 +2451,7 @@ void wxDataViewCustomRenderer::RenderText( const wxString &text,
 
     GtkCellRendererText * const textRenderer = GtkGetTextRenderer();
 
-    GValue gvalue = { 0, };
+    GValue gvalue = G_VALUE_INIT;
     g_value_init( &gvalue, G_TYPE_STRING );
     g_value_set_string( &gvalue, wxGTK_CONV_FONT( text, GetOwner()->GetOwner()->GetFont() ) );
     g_object_set_property( G_OBJECT(textRenderer), "text", &gvalue );
@@ -2562,7 +2562,7 @@ wxDataViewProgressRenderer::~wxDataViewProgressRenderer()
 
 void wxDataViewProgressRenderer::GTKSetLabel()
 {
-    GValue gvalue = { 0, };
+    GValue gvalue = G_VALUE_INIT;
     g_value_init( &gvalue, G_TYPE_STRING );
 
     // Take care to not use GetOwner() here if the label is empty, we can be
@@ -2590,7 +2590,7 @@ bool wxDataViewProgressRenderer::SetValue( const wxVariant &value )
 #endif // !wxUSE_UNICODE
 
     gint tmp = (long) value;
-    GValue gvalue = { 0, };
+    GValue gvalue = G_VALUE_INIT;
     g_value_init( &gvalue, G_TYPE_INT );
     g_value_set_int( &gvalue, tmp );
     g_object_set_property( G_OBJECT(m_renderer), "value", &gvalue );
@@ -2672,7 +2672,7 @@ wxSize wxDataViewChoiceRenderer::GetSize() const
 
 bool wxDataViewChoiceRenderer::SetValue( const wxVariant &value )
 {
-    GValue gvalue = { 0, };
+    GValue gvalue = G_VALUE_INIT;
     g_value_init( &gvalue, G_TYPE_STRING );
     g_value_set_string(&gvalue,
                        wxGTK_CONV_FONT(value.GetString(),
@@ -2685,7 +2685,7 @@ bool wxDataViewChoiceRenderer::SetValue( const wxVariant &value )
 
 bool wxDataViewChoiceRenderer::GetValue( wxVariant &value ) const
 {
-    GValue gvalue = { 0, };
+    GValue gvalue = G_VALUE_INIT;
     g_value_init( &gvalue, G_TYPE_STRING );
     g_object_get_property( G_OBJECT(m_renderer), "text", &gvalue );
     wxString temp = wxGTK_CONV_BACK_FONT(g_value_get_string(&gvalue),
@@ -2712,7 +2712,7 @@ void wxDataViewChoiceRenderer::SetAlignment( int align )
     else if (align & wxALIGN_CENTER_HORIZONTAL)
         pangoAlign = PANGO_ALIGN_CENTER;
 
-    GValue gvalue = { 0, };
+    GValue gvalue = G_VALUE_INIT;
     g_value_init( &gvalue, gtk_cell_renderer_mode_get_type() );
     g_value_set_enum( &gvalue, pangoAlign );
     g_object_set_property( G_OBJECT(m_renderer), "alignment", &gvalue );
@@ -2894,7 +2894,7 @@ static void wxGtkTreeCellDataFunc( GtkTreeViewColumn *WXUNUSED(column),
             visible = true;
         }
 
-        GValue gvalue = { 0, };
+        GValue gvalue = G_VALUE_INIT;
         g_value_init( &gvalue, G_TYPE_BOOLEAN );
         g_value_set_boolean( &gvalue, visible );
         g_object_set_property( G_OBJECT(renderer), "visible", &gvalue );
@@ -2920,7 +2920,7 @@ static void wxGtkTreeCellDataFunc( GtkTreeViewColumn *WXUNUSED(column),
     bool enabled = wx_model->IsEnabled( item, cell->GetOwner()->GetModelColumn() );
 
     // a) this sets the appearance to disabled grey    
-    GValue gvalue = { 0, };
+    GValue gvalue = G_VALUE_INIT;
     g_value_init( &gvalue, G_TYPE_BOOLEAN );
     g_value_set_boolean( &gvalue, enabled );
     g_object_set_property( G_OBJECT(renderer), "sensitive", &gvalue );