[gnome-builder] egg-counter: use __sync_add_and_fetch()

[Christian Hergert <chergert src gnome org>]

commit 76ed2c3ff7896e8fbadab7a98007807ee99a833c
Author: Christian Hergert <christian hergert me>
Date:   Mon May 11 21:43:54 2015 -0700

    egg-counter: use __sync_add_and_fetch()
    
    Let GCC/Clang determine the right size variant.

 contrib/egg/egg-counter.h |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/contrib/egg/egg-counter.h b/contrib/egg/egg-counter.h
index 6a02819..b5ce0e7 100644
--- a/contrib/egg/egg-counter.h
+++ b/contrib/egg/egg-counter.h
@@ -225,9 +225,9 @@ G_BEGIN_DECLS
  * See #EggCounter for more information.
  */
 #ifdef EGG_COUNTER_REQUIRES_ATOMIC
-# define EGG_COUNTER_ADD(Identifier, Count)                    \
-  G_STMT_START {                                               \
-    __sync_fetch_and_add8 (&Identifier.values[0], Count);      \
+# define EGG_COUNTER_ADD(Identifier, Count)                                \
+  G_STMT_START {                                                           \
+    __sync_add_and_fetch ((gint64 *)&Identifier.values[0], (gint64)Count); \
   } G_STMT_END
 #else
 # define EGG_COUNTER_ADD(Identifier, Count)                    \