MinGW compilation issue in qtbase (qprocess_win.cpp)

io\qprocess_win.cpp: In function 'void qt_create_pipe(void**, bool)':
io\qprocess_win.cpp:86:47: error: invalid conversion from 'unsigned int' to 'const wchar_t*' [-fperm
issive]
In file included from c:\mingw-32\bin\../lib/gcc/mingw32/4.7.2/include/c++/cstdio:44:0,
                 from c:\mingw-32\bin\../lib/gcc/mingw32/4.7.2/include/c++/random:39,
                 from c:\mingw-32\bin\../lib/gcc/mingw32/4.7.2/include/c++/bits/stl_algo.h:67,
                 from c:\mingw-32\bin\../lib/gcc/mingw32/4.7.2/include/c++/algorithm:63,
                 from ..\..\include\QtCore/../../src/corelib/global/qglobal.h:80,
                 from ..\..\include\QtCore/qglobal.h:1,
                 from global\qt_pch.h:58:
c:\mingw-32\bin\../lib/gcc/mingw32/4.7.2/../../../../include/stdio.h:579:37: error:   initializing a
rgument 2 of 'int swprintf(wchar_t*, const wchar_t*, ...)' [-fpermissive]
jom: D:\dev\qt-5-sdk-mingw-32\qtbase\src\corelib\Makefile.Debug [.obj\debug_shared\qprocess_win.o] E
rror 1