[gtk+/a11y] stylecontext: #include <math.h> when using math functions

[Benjamin Otte <otte src gnome org>]

commit cd6d4afd174eef6db7b838fa6880c92182416b23
Author: Benjamin Otte <otte redhat com>
Date:   Mon Jun 27 02:59:19 2011 +0200

    stylecontext: #include <math.h> when using math functions

 gtk/gtkstylecontext.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkstylecontext.c b/gtk/gtkstylecontext.c
index a50ea22..b17f0d1 100644
--- a/gtk/gtkstylecontext.c
+++ b/gtk/gtkstylecontext.c
@@ -20,6 +20,7 @@
 #include "config.h"
 
 #include <gdk/gdk.h>
+#include <math.h>
 #include <stdlib.h>
 #include <gobject/gvaluecollector.h>