[perl-Gtk2] Wrap gtk_scale_add_mark and gtk_scale_clear_marks (new in gtk+ 2.16)

[Torsten Schönfeld <tsch src gnome org>]

commit 97b86a175dcabc8660ffd21dbf8ef7ec6d750af5
Author: Quentin Sculo <squentin free fr>
Date:   Tue Apr 13 18:57:19 2010 +0200

    Wrap gtk_scale_add_mark and gtk_scale_clear_marks (new in gtk+ 2.16)

 t/GtkScale.t   |   15 +++++++++++++--
 xs/GtkScale.xs |   14 ++++++++++++++
 2 files changed, 27 insertions(+), 2 deletions(-)
---
diff --git a/t/GtkScale.t b/t/GtkScale.t
index f2099c8..f04d1a2 100644
--- a/t/GtkScale.t
+++ b/t/GtkScale.t
@@ -1,6 +1,6 @@
 #!/usr/bin/perl -w
 use strict;
-use Gtk2::TestHelper tests => 6;
+use Gtk2::TestHelper tests => 7;
 
 # $Id$
 
@@ -26,7 +26,18 @@ SKIP: {
   is(@{[$scale -> get_layout_offsets()]}, 2);
 }
 
+SKIP: {
+  skip("gtk_scale_add_mark and gtk_scale_clear_marks are new in 2.16", 1)
+    unless Gtk2->CHECK_VERSION (2, 16, 0);
+
+    # no way to test it other than checking they don't crash
+  $scale -> add_mark(50,'top','this is the middle');
+  $scale -> add_mark(80,'bottom',undef);
+  $scale -> clear_marks;
+  ok(1,"add_mark and clear_marks");
+}
+
 __END__
 
-Copyright (C) 2003 by the gtk2-perl team (see the file AUTHORS for the
+Copyright (C) 2003,2010 by the gtk2-perl team (see the file AUTHORS for the
 full list).  See LICENSE for more information.
diff --git a/xs/GtkScale.xs b/xs/GtkScale.xs
index 69f34bc..52e7692 100644
--- a/xs/GtkScale.xs
+++ b/xs/GtkScale.xs
@@ -69,3 +69,17 @@ gtk_scale_get_layout (scale)
 void gtk_scale_get_layout_offsets (GtkScale *scale, OUTLIST gint x, OUTLIST gint y)
 
 #endif
+
+#if GTK_CHECK_VERSION (2, 16, 0)
+
+## void gtk_scale_add_mark (GtkScale *scale, gdouble value, GtkPositionType  position, const gchar *markup)
+void
+gtk_scale_add_mark (scale, value, position, markup)
+	GtkScale *scale
+	gdouble   value
+	GtkPositionType   position
+	const gchar_ornull *markup
+
+void gtk_scale_clear_marks (GtkScale *scale)
+
+#endif