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        style=" color:#be1414;">I get the following unresolved symbols
        when I build Subsurface using QtCreator:<br>
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        style=" color:#be1414;"><br>
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        style=" color:#be1414;">/home/willem/build-subsurface-Desktop_Qt_5_4_0_GCC_64bit-Debug/../subsurface/qt-ui/globe.cpp:192:
        undefined reference to `Marble::MarbleWidget::model()'</span></p>
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        style=" color:#be1414;">/home/willem/build-subsurface-Desktop_Qt_5_4_0_GCC_64bit-Debug/../subsurface/qt-ui/globe.cpp:233:
        undefined reference to `Marble::MarbleWidget::model()'</span></p>
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        style=" color:#be1414;">.obj/moc_globe.o:(.data.rel.ro._ZTV8GlobeGPS[_ZTV8GlobeGPS]+0x60):
        undefined reference to
        `Marble::MarbleWidget::connectNotify(QMetaMethod const&)'</span></p>
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        style=" color:#be1414;">.obj/moc_globe.o:(.data.rel.ro._ZTV8GlobeGPS[_ZTV8GlobeGPS]+0x68):
        undefined reference to
        `Marble::MarbleWidget::disconnectNotify(QMetaMethod const&)'</span></p>
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        style=" color:#be1414;">collect2: error: ld returned 1 exit
        status</span></p>
    <br>
    Has anything changed with respect to marble?  When I build a new
    Subsurface by hand, I use the following form of qmake:<br>
    <br>
    qmake SPECIAL_MARBLE_PREFIX=1<br>
    <br>
    However, when I build using QtCreator, I cannot use this option. My
    suspicion is that this is my problem.<br>
    <br>
    Advice, please !<br>
    Kind regards,<br>
    willem<br>
    <br>
    <br>
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