[librsvg] Fix compilation of GTK+ theme engine for GTK+ 3.0

[Bastien Nocera <hadess src gnome org>]

commit 0cc1279c5033a30cb715735fab0af54813b11c45
Author: Bastien Nocera <hadess hadess net>
Date:   Fri Jun 11 14:02:49 2010 +0100

    Fix compilation of GTK+ theme engine for GTK+ 3.0
    
    ->draw_string() has been removed in GTK+ 3.x.

 gtk-engine/svg-draw.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/gtk-engine/svg-draw.c b/gtk-engine/svg-draw.c
index 3602a9b..8363546 100644
--- a/gtk-engine/svg-draw.c
+++ b/gtk-engine/svg-draw.c
@@ -583,6 +583,7 @@ draw_diamond (GtkStyle     *style,
 				x, y, width, height);
 }
 
+#if ! (GTK_CHECK_VERSION(2,90,0))
 static void
 draw_string (GtkStyle * style,
 	     GdkWindow * window,
@@ -624,6 +625,7 @@ draw_string (GtkStyle * style,
       gdk_gc_set_clip_rectangle(style->fg_gc[state], NULL);
     }
 }
+#endif /* ! (GTK_CHECK_VERSION(2,90,0)) */
 
 static void
 draw_box (GtkStyle     *style,
@@ -1024,7 +1026,9 @@ rsvg_style_class_init (RsvgStyleClass *klass)
   style_class->draw_shadow = draw_shadow;
   style_class->draw_arrow = draw_arrow;
   style_class->draw_diamond = draw_diamond;
+#if ! (GTK_CHECK_VERSION(2,90,0))
   style_class->draw_string = draw_string;
+#endif
   style_class->draw_box = draw_box;
   style_class->draw_flat_box = draw_flat_box;
   style_class->draw_check = draw_check;