To #include <QtTest/QtTest> generates warnings

If you #include <QtTest/QtTest> and try to compile on OS X 10.8.2, you will get the following warnings:

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /Applications/Qt5.0.1/5.0.1/clang_64/include/QtTest/QtTest:8:
In file included from /Applications/Qt5.0.1/5.0.1/clang_64/include/QtTest/qtest.h:244:
In file included from /Applications/Qt5.0.1/5.0.1/clang_64/include/QtTest/qtest_gui.h:55:
In file included from /Applications/Qt5.0.1/5.0.1/clang_64/include/QtTest/qtestevent.h:52:
In file included from /Applications/Qt5.0.1/5.0.1/clang_64/include/QtTest/qtestkeyboard.h:53:
/Applications/Qt5.0.1/5.0.1/clang_64/include/QtTest/qtestspontaneevent.h:107:12: error: private field 'posted' is not used [-Werror,-Wunused-private-field]
ushort posted : 1;
^
/Applications/Qt5.0.1/5.0.1/clang_64/include/QtTest/qtestspontaneevent.h:109:12: error: private field 'm_accept' is not used [-Werror,-Wunused-private-field]
ushort m_accept : 1;
^
/Applications/Qt5.0.1/5.0.1/clang_64/include/QtTest/qtestspontaneevent.h:110:12: error: private field 'reserved' is not used [-Werror,-Wunused-private-field]
ushort reserved : 13;
^
3 errors generated.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Now, because my project considers warnings as errors, the above breaks things for me.

There is, obviously, a very simple workaround, e.g.:

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#ifdef Q_OS_MAC
#pragma GCC diagnostic ignored "-Wunused-private-field"
#endif

#include <QtTest/QtTest>

#ifdef Q_OS_MAC
#pragma GCC diagnostic warning "-Wunused-private-field"
#endif
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

But, ideally, Qt would handle this without us having to 'protect' ourselves from those warnings.