On Fri, Mar 11, 2016, at 02:35 PM, Johannes Kroll wrote:
-I/usr/include/qt4/QtCore -I/usr/include/qt4/QtGui
...
Those look suspiciously like Qt4 paths...
qtmultimedia5-dev:amd64:
/usr/include/x86_64-linux-gnu/qt5/QtMultimedia/QAudioFormat
... while that looks suspiciously like Qt5.
Does Ubuntu 15.10 still default to Qt4 for qmake? I don't recall
offhand.
Try qmake-qt5 (or qt5-qmake) rather than just qmake?
Chris