Prefer native atomic/mutex ops to glib's
diff --git a/src/hb-atomic-private.hh b/src/hb-atomic-private.hh
index c4dabe1..f9050c3 100644
--- a/src/hb-atomic-private.hh
+++ b/src/hb-atomic-private.hh
@@ -1,7 +1,7 @@
/*
* Copyright © 2007 Chris Wilson
* Copyright © 2009,2010 Red Hat, Inc.
- * Copyright © 2011 Google, Inc.
+ * Copyright © 2011,2012 Google, Inc.
*
* This is part of HarfBuzz, a text shaping library.
*
@@ -39,7 +39,24 @@
/* We need external help for these */
-#if !defined(HB_NO_MT) && defined(HAVE_GLIB)
+
+#if !defined(HB_NO_MT) && defined(_MSC_VER) && _MSC_VER >= 1600
+
+#include <intrin.h>
+typedef long hb_atomic_int_t;
+#define hb_atomic_int_add(AI, V) _InterlockedExchangeAdd (&(AI), V)
+#define hb_atomic_int_get(AI) (_ReadBarrier (), (AI))
+
+
+#elif !defined(HB_NO_MT) && defined(__APPLE__)
+
+#include <libkern/OSAtomic.h>
+typedef int32_t hb_atomic_int_t;
+#define hb_atomic_int_add(AI, V) (OSAtomicAdd32Barrier((V), &(AI)), (AI) - (V))
+#define hb_atomic_int_get(AI) OSAtomicAdd32Barrier(0, &(AI))
+
+
+#elif !defined(HB_NO_MT) && defined(HAVE_GLIB)
#include <glib.h>
typedef volatile int hb_atomic_int_t;
@@ -51,20 +68,6 @@
#define hb_atomic_int_get(AI) g_atomic_int_get (&(AI))
-#elif !defined(HB_NO_MT) && defined(_MSC_VER) && _MSC_VER >= 1600
-
-#include <intrin.h>
-typedef long hb_atomic_int_t;
-#define hb_atomic_int_add(AI, V) _InterlockedExchangeAdd (&(AI), V)
-#define hb_atomic_int_get(AI) (_ReadBarrier (), (AI))
-
-#elif !defined(HB_NO_MT) && defined(__APPLE__)
-
-#include <libkern/OSAtomic.h>
-typedef int32_t hb_atomic_int_t;
-#define hb_atomic_int_add(AI, V) (OSAtomicAdd32Barrier((V), &(AI)), (AI) - (V))
-#define hb_atomic_int_get(AI) OSAtomicAdd32Barrier(0, &(AI))
-
#else
#define HB_ATOMIC_INT_NIL 1
