/usr/ is in libqt5extserialport-dev 1.2.0~rc1+git7-g3be3fbf-1ubuntu1.
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/usr/share/
/usr/share/doc/
/usr/share/doc/libqt5extserialport-dev/
/usr/share/doc/libqt5extserialport-dev/copyright
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/qt5/
/usr/lib/x86_64-linux-gnu/qt5/mkspecs/
/usr/lib/x86_64-linux-gnu/qt5/mkspecs/features/
/usr/lib/x86_64-linux-gnu/qt5/mkspecs/features/extserialport.prf
/usr/include/
/usr/include/x86_64-linux-gnu/
/usr/include/x86_64-linux-gnu/qt5/
/usr/include/x86_64-linux-gnu/qt5/QtExtSerialPort/
/usr/include/x86_64-linux-gnu/qt5/QtExtSerialPort/qextserialport.h
/usr/include/x86_64-linux-gnu/qt5/QtExtSerialPort/qextserialport_global.h
/usr/include/x86_64-linux-gnu/qt5/QtExtSerialPort/qextserialenumerator.h
/usr/share/doc/libqt5extserialport-dev/changelog.Debian.gz
/usr/lib/x86_64-linux-gnu/libQt5ExtSerialPort.so