make errors from using on mac os x 10.8.2, xcode 4.5.1

[AndrewGauger]

n file included from /opt/local/Library/Frameworks/QtGui.framework/Versions/4/Headers/QKeyEvent:1:
In file included from /opt/local/Library/Frameworks/QtGui.framework/Versions/4/Headers/qevent.h:52:
/opt/local/include/QtGui/qmime.h:119:10: error: private field 'type' is not used [-Werror,-Wunused-private-field]
char type;
^
1 error generated.