Per local project fix: manually copying definitions to your .pro file from /usr/share/qt4/mkspecs/features/extserialport.prf:
INCLUDEPATH += /usr/include/qt4/QtExtSerialPort LIBS += -l$$qextLibraryName(qextserialport) DEFINES += QEXTSERIALPORT_USING_SHARED And change them to: INCLUDEPATH += /usr/include/QtExtSerialPort LIBS += -l$$qextLibraryName(qextserialport) DEFINES += QEXTSERIALPORT_USING_SHARED -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1204491 Title: Package libqextserialport-dev - wrong includepath To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qextserialport/+bug/1204491/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs