add an include to signal manager.cpp . This problem was new with Windows and Qt5.5.
add an include to signal manager.cpp . This problem was new with Windows and Qt5.5.

gbaty/pyside2,IronManMark20/pyside2,qtproject/pyside-pyside,BadSingleton/pyside2,BadSingleton/pyside2,qtproject/pyside-pyside,gbaty/pyside2,gbaty/pyside2,BadSingleton/pyside2,BadSingleton/pyside2,IronManMark20/pyside2,IronManMark20/pyside2,qtproject/pyside-pyside,qtproject/pyside-pyside,gbaty/pyside2,qtproject/pyside-pyside,IronManMark20/pyside2,gbaty/pyside2,BadSingleton/pyside2,IronManMark20/pyside2