From e85061b94c5883041384512df66a8d08009a24a3 Mon Sep 17 00:00:00 2001
From: Niels Kristian Bech Jensen <nkbj1970@hotmail.com>
Date: Fri, 29 Mar 2013 15:30:04 +1100
Subject: [PATCH] package harfbuzz: define MemoryBarrier

---
 src/harfbuzz-2-memory-barrier.patch | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 src/harfbuzz-2-memory-barrier.patch

diff --git a/src/harfbuzz-2-memory-barrier.patch b/src/harfbuzz-2-memory-barrier.patch
new file mode 100644
index 00000000..93f708a5
--- /dev/null
+++ b/src/harfbuzz-2-memory-barrier.patch
@@ -0,0 +1,22 @@
+This file is part of MXE.
+See index.html for further information.
+
+Beware! This patch must be removed when winnt.h is updated to a version that
+includes the MemoryBarrier() macro.
+
+diff -ur harfbuzz-0.9.14.orig/src/hb-atomic-private.hh harfbuzz-0.9.14/src/hb-atomic-private.hh
+--- harfbuzz-0.9.14.orig/src/hb-atomic-private.hh	2013-03-19 12:04:53.000000000 +0100
++++ harfbuzz-0.9.14/src/hb-atomic-private.hh	2013-03-27 05:32:38.407335037 +0100
+@@ -44,6 +44,12 @@
+ 
+ #elif !defined(HB_NO_MT) && (defined(_WIN32) || defined(__CYGWIN__))
+ 
++static inline void MemoryBarrier(void)
++{
++  long Barrier = 0;
++  __asm__ __volatile__ ("xchgl %%eax,%0 " : "=r" (Barrier));
++}
++
+ #define WIN32_LEAN_AND_MEAN
+ #include <windows.h>
+