[gtk+] gtk/gtkkineticscrolling.c: Include fallback-c89.c

[Chun-wei Fan <fanchunwei src gnome org>]

commit d8de23bef6d6ab17b3f31b99bb6e38f66c3a71de
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Fri Jun 6 14:47:19 2014 +0800

    gtk/gtkkineticscrolling.c: Include fallback-c89.c
    
    ... as round() is being used, which is for C99 and later.  fallback-c89.c
    includes math.h as well.

 gtk/gtkkineticscrolling.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkkineticscrolling.c b/gtk/gtkkineticscrolling.c
index 62f05c4..0961970 100644
--- a/gtk/gtkkineticscrolling.c
+++ b/gtk/gtkkineticscrolling.c
@@ -18,9 +18,10 @@
 #include "config.h"
 #include "gtkkineticscrolling.h"
 
-#include <math.h>
 #include <stdio.h>
 
+#include "fallback-c89.c"
+
 /*
  * All our curves are second degree linear differential equations, and
  * so they can always be written as linear combinations of 2 base