rcc: Prevent CRLF conversion on Windows for -binary

Fix an issue on Windows where

  rcc -binary project.qrc >project.rcc

resulted in a corrupted file (\n was automatically replaced with \r\n).

This is caused by Qt using fwrite internally, which will automatically
replace linefeed with carriage-return for streams opened in text mode.

The fix forces stdout to binary mode in this case.

Task-number: QTBUG-39422
Change-Id: Ib5b5e82db922dc389d160b0115dbafe8641c95fd
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Robert Loehning <robert.loehning@digia.com>
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
Reviewed-by: hjk <hjk121@nokiamail.com>

src/tools/rcc/main.cpp

@@ -52,6 +52,10 @@
 #include <qcommandlineoption.h>
 #include <qcommandlineparser.h>
 
+#ifdef Q_OS_WIN
+#  include <fcntl.h>
+#  include <io.h>
+#endif // Q_OS_WIN
 
 QT_BEGIN_NAMESPACE
 
@@ -252,6 +256,11 @@ int runRcc(int argc, char *argv[])
 
 
     if (outFilename.isEmpty() || outFilename == QLatin1String("-")) {
+#ifdef Q_OS_WIN
+        // Make sure fwrite to stdout doesn't do LF->CRLF
+        if (library.format() == RCCResourceLibrary::Binary)
+            _setmode(_fileno(stdout), _O_BINARY);
+#endif // Q_OS_WIN
         // using this overload close() only flushes.
         out.open(stdout, mode);
     } else {