[gtk-builder-win] fontconfig: fix fcatomic

[Ignacio Casal Quinteiro <icq src gnome org>]

commit 1cc8fe5887325713bc7c50caf7a07f6e0ccea21a
Author: Ignacio Casal Quinteiro <icq gnome org>
Date:   Fri Jul 11 13:45:42 2014 +0200

    fontconfig: fix fcatomic

 win32/libs/33_libfontconfig.bat            |    3 +++
 win32/libs/33_libfontconfig/fcatomic.patch |   17 +++++++++++++++++
 2 files changed, 20 insertions(+), 0 deletions(-)
---
diff --git a/win32/libs/33_libfontconfig.bat b/win32/libs/33_libfontconfig.bat
index 9339ad5..72c35eb 100644
--- a/win32/libs/33_libfontconfig.bat
+++ b/win32/libs/33_libfontconfig.bat
@@ -7,6 +7,9 @@ gzip -d -f -c fontconfig-$MODVER.tar.gz > fontconfig-$MODVER.tar
 tar -xf fontconfig-$MODVER.tar
 cd fontconfig-$MODVER
 
+cd ..
+patch -p0 < fcatomic.patch
+cd fontconfig-$MODVER
 
 echo To fix ftheader.h location detection by make...
 
diff --git a/win32/libs/33_libfontconfig/fcatomic.patch b/win32/libs/33_libfontconfig/fcatomic.patch
new file mode 100644
index 0000000..8d26763
--- /dev/null
+++ b/win32/libs/33_libfontconfig/fcatomic.patch
@@ -0,0 +1,17 @@
+--- fontconfig-2.11.1/src/fcatomic.h   2014-01-20 09:14:20.000000000 +0100
++++ fontconfig-2.11.1/src/fcatomic.h   2014-07-11 13:41:39.311504300 +0200
+@@ -51,14 +51,10 @@
+ /* mingw32 does not have MemoryBarrier.
+  * MemoryBarrier may be defined as a macro or a function.
+  * Just make a failsafe version for ourselves. */
+-#ifdef MemoryBarrier
+-#define HBMemoryBarrier MemoryBarrier
+-#else
+ static inline void HBMemoryBarrier (void) {
+   long dummy = 0;
+   InterlockedExchange (&dummy, 1);
+ }
+-#endif
+ 
+ typedef LONG fc_atomic_int_t;
+ #define fc_atomic_int_add(AI, V)      InterlockedExchangeAdd (&(AI), (V))