--- /dev/null
+diff -ur qt-win-opensource-src-4.4.3.orig/src/corelib/io/qfsfileengine_win.cpp qt-win-opensource-src-4.4.3/src/corelib/io/qfsfileengine_win.cpp
+--- qt-win-opensource-src-4.4.3.orig/src/corelib/io/qfsfileengine_win.cpp 2008-09-27 10:00:55.000000000 +0100
++++ qt-win-opensource-src-4.4.3/src/corelib/io/qfsfileengine_win.cpp 2009-02-06 16:39:50.000000000 +0000
+@@ -65,6 +65,7 @@
+ #include <ctype.h>\r
+ #include <limits.h>\r
+ #define SECURITY_WIN32\r
++#include <subauth.h>\r
+ #include <security.h>\r
+ \r
+ #ifndef _INTPTR_T_DEFINED\r