[clutter] actor: Use CLUTTER_NEARBYINT instead of C integer casting

[Emmanuele Bassi <ebassi src gnome org>]

commit 3e14d87188dabc6825190c9c3a2f67d5adf8a020
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Fri Jul 10 14:33:25 2015 +0100

    actor: Use CLUTTER_NEARBYINT instead of C integer casting
    
    Otherwise we break because of rounding.

 clutter/clutter-actor.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/clutter/clutter-actor.c b/clutter/clutter-actor.c
index 1a04312..e01f376 100644
--- a/clutter/clutter-actor.c
+++ b/clutter/clutter-actor.c
@@ -15183,7 +15183,7 @@ clutter_actor_transform_stage_point (ClutterActor *self,
       dy2 = v[2].y - v[3].y;
 
       det = DET (dx1, dx2, dy1, dy2);
-      if ((int) det == 0)
+      if (CLUTTER_NEARBYINT (det) == 0)
        return FALSE;
 
       RQ[0][2] = DET (px, dx2, py, dy2) / det;
@@ -15229,7 +15229,7 @@ clutter_actor_transform_stage_point (ClutterActor *self,
   det = (RQ[0][0] * ST[0][0])
       + (RQ[0][1] * ST[0][1])
       + (RQ[0][2] * ST[0][2]);
-  if ((int) det == 0)
+  if (CLUTTER_NEARBYINT (det) == 0)
     return FALSE;
 
   /*