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If so, compile it with Network Download Example, which is officially available from Qt.
Usar a macro em vez da keyword é recomendada quando você usa outras bibliotecas que podem colidir com o Qt em relação aos signals/slots, que é o caso do Boost.
@Jessica you're welcomed. Please don't forget to mark the post as solved.
QT_NO_PRINTER is (or not) defined when compiling Qt, not when loading or not a module.
One thing you could is the qtHaveModule() function in your pro file and create the defines you need there.
Hope it helps
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