Integrating QNX Qt libraries in a Qt project

Would anyone know how to include/use the QNX Qt libraries such as QtQnxCar2, QPPS, QPlayer in a Qt project? I think this involves including a package in Qt or may be linking the library in the .pro file, just can't figure out what it is though.

QNX has lot of documentation about the libraries, but nothing about how to actually include and use them in a Qt project.

I am specifically looking for how to use the Qpps namespace in my project. For example, I've linked the qpps library as below in my .pro file:

LIBS += -L/home/me/qnx660/target/qnx6/armle-v7/qtcar/lib/ -lqpps
INCLUDEPATH += /home/me/qnx660/target/qnx6/armle-v7/qtcar
DEPENDPATH += /home/me/qnx660/target/qnx6/armle-v7/qtcar

Here's the code in mainwindow.cpp,

#include <QDebug>
#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QTimer>
using namespace QPps;

Here's the build error:

mainwindow.cpp:5:17: error: 'QPps' is not a namespace-name
mainwindow.cpp:5:21: error: expected namespace-name before ';' token
cc: /home/me/qnx660/host/linux/x86/usr/lib/gcc/arm-unknown-nto-qnx6.6.0eabi/4.7.3/cc1plus error 1
make: *** [mainwindow.o] Error 1

Toolchain: Qt Creator 3.3.2 Qt 5.2.0 QNX Car 2.1 QNX SDP 6.6 Ubuntu 14.04

Solution

EDIT The question is changed completely! Instead of linking problem, described earlier, now a compiler error is described. You have to include the header-file first, where the namespace is declared. e.g:

#include <qpps/changeset.h>

Also, pay attention, that the directory of qpps-include files (headers, .h-files) are defined in the line:

INCLUDEPATH += <Path to your qpps includes >

ORIGINAL ANSWER If QNX libraries apply to the same rules as other UNIX libraries, you could use them by including this line in your Qt project file (*.pro)

LIBS += -L/Path/to/mylib/ -lmylib

Actually QNX doesn't have to provide any info, how to use their libs in Qt. The appropriate manual is the QMAKE-manual.