[gtk+] Fix 32-bit Windows build using mingw-w64 toolchain

[Fridrich Strba <strba src gnome org>]

commit c4b129bac27d4a2083cbbaea9fb0d08f001526e6
Author: Fridrich Å trba <fridrich strba bluewin ch>
Date:   Tue Aug 3 03:01:49 2010 +0200

    Fix 32-bit Windows build using mingw-w64 toolchain

 gtk/gtkprintoperation-win32.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkprintoperation-win32.c b/gtk/gtkprintoperation-win32.c
index ccb3cd9..3b04ca4 100644
--- a/gtk/gtkprintoperation-win32.c
+++ b/gtk/gtkprintoperation-win32.c
@@ -71,7 +71,7 @@ static void win32_poll_status (GtkPrintOperation *op);
 
 static const GUID myIID_IPrintDialogCallback  = {0x5852a2c3,0x6530,0x11d1,{0xb6,0xa3,0x0,0x0,0xf8,0x75,0x7b,0xf9}};
 
-#if !defined (_MSC_VER) && !defined (MINGW64) && !defined (__MINGW64__)
+#if !defined (_MSC_VER) && !defined (__MINGW64_VERSION_MAJOR)
 #undef INTERFACE
 #define INTERFACE IPrintDialogCallback
 DECLARE_INTERFACE_ (IPrintDialogCallback, IUnknown)