QProcess: Fix compilation with MinGW

newer mingw-w64 headers do not support swprintf(wchar_t*,wchar_t*, ..)
any more.

Change-Id: I2fc1fb51ba8d5237149697f77a91abd6469ebb09
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

diff --git a/src/corelib/io/qprocess_win.cpp b/src/corelib/io/qprocess_win.cpp
index d19ab69..780efda 100644 (file)
--- a/src/corelib/io/qprocess_win.cpp
+++ b/src/corelib/io/qprocess_win.cpp
@@ -82,7 +82,8 @@ static void qt_create_pipe(Q_PIPE *pipe, bool isInputPipe)
     forever {
         // ### The user must make sure to call qsrand() to make the pipe names less predictable.
         // ### Replace the call to qrand() with a secure version, once we have it in Qt.
-        swprintf(pipeName, L"\\\\.\\pipe\\qt-%X", qrand());
+        swprintf(pipeName, sizeof(pipeName) / sizeof(pipeName[0]),
+                L"\\\\.\\pipe\\qt-%X", qrand());
 
         DWORD dwPipeFlags = PIPE_TYPE_BYTE | PIPE_WAIT;
         if (QSysInfo::windowsVersion() >= QSysInfo::WV_VISTA)