1 files changed, 9 insertions, 0 deletions
diff --git a/src/tree.c b/src/tree.c
index a8b324f..7f20b92 100644
--- a/src/tree.c
+++ b/src/tree.c
@@ -30,6 +30,15 @@
 #include "zenity.h"
 #include "util.h"
 
+#if GTK_MAJOR_VERSION == 2
+static void
+gtk_widget_get_preferred_size (GtkWidget *widget, GtkRequisition *minimum_size, GtkRequisition *natural_size)
+{
+  gtk_widget_size_request(widget, natural_size);
+  gtk_widget_get_size_request(widget, &(minimum_size->width), &(minimum_size->height));
+}
+#endif
+
 #define MAX_ELEMENTS_BEFORE_SCROLLING 5
 #define PRINT_HIDE_COLUMN_SEPARATOR ","