[gimp] Use a proper int to pointer cast

[Mukund Sivaraman <muks src gnome org>]

commit 56d8850d3818d9bdb4db47c0705a668c19c0a001
Author: Mukund Sivaraman <muks banu com>
Date:   Thu Mar 17 23:53:07 2011 +0530

    Use a proper int to pointer cast

 app/gegl/gimptilebackendtilemanager.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/app/gegl/gimptilebackendtilemanager.c b/app/gegl/gimptilebackendtilemanager.c
index 788fb17..0ad17aa 100644
--- a/app/gegl/gimptilebackendtilemanager.c
+++ b/app/gegl/gimptilebackendtilemanager.c
@@ -217,7 +217,7 @@ gimp_tile_backend_tile_manager_command (GeglTileSource  *tile_store,
       {
         RamEntry *entry = lookup_entry (backend_tm, x, y, z);
 
-        return (gpointer) (entry != NULL);
+        return GINT_TO_POINTER (entry != NULL);
       }
 
     default: