+static gint
+cmp_subject_rows (GtkTreeModel *tree_model, GtkTreeIter *iter1, GtkTreeIter *iter2,
+ gpointer user_data)
+{
+ gint t1, t2;
+ gchar *val1, *val2;
+ gint cmp;
+/* static int counter = 0; */
+
+ g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN(user_data), 0);
+
+ gtk_tree_model_get (tree_model, iter1, TNY_GTK_HEADER_LIST_MODEL_SUBJECT_COLUMN, &val1,
+ TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1, -1);
+ gtk_tree_model_get (tree_model, iter2, TNY_GTK_HEADER_LIST_MODEL_SUBJECT_COLUMN, &val2,
+ TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2, -1);
+
+ cmp = modest_text_utils_utf8_strcmp (val1 + modest_text_utils_get_subject_prefix_len(val1),
+ val2 + modest_text_utils_get_subject_prefix_len(val2),
+ TRUE);
+ g_free (val1);
+ g_free (val2);
+ return cmp;
+}
+