Problems linking Matlab libraries into Qt (Linux) .. libeng.so: undefined reference to ..

Hey I want to create a program that has a user interface for inputs and outputs that is created using Qt c++ IDE and back functions that are programmed using matlab. To do that im using MATLAB Engine library in GUI code, but im having problems to link the Matlab libraries. My code of the .pro file is:

    TEMPLATE = app
    CONFIG += console
    CONFIG -= app_bundle
    CONFIG -= qt
    SOURCES += main.c
    include(deployment.pri)
    qtcAddDeployment()
    INCLUDEPATH += $$PWD/../../../MATLAB/R2016a/extern/include
    INCLUDEPATH += $$PWD/../../../MATLAB/R2016a/bin/glnxa64
    DEPENDPATH += $$PWD/../../../MATLAB/R2016a/bin/glnxa64
    win32:CONFIG(release, debug|release): LIBS += -L$$PWD/../../../MATLAB/R2016a/bin/glnxa64/release/
    -lmex
    else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/../../../MATLAB/R2016a/bin/glnxa64
    /debug/ -lmex
    else:unix: LIBS += -L$$PWD/../../../MATLAB/R2016a/bin/glnxa64/ -lmex
    win32:CONFIG(release, debug|release): LIBS += -L$$PWD/../../../MATLAB/R2016a/bin/glnxa64/release/
    -leng
    else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/../../../MATLAB/R2016a/bin/glnxa64
    /debug/ -leng
    else:unix: LIBS += -L$$PWD/../../../MATLAB/R2016a/bin/glnxa64/ -leng

The compile output is as follows:

    14:50:27: Running steps for project untitled...
    14:50:27: Configuration unchanged, skipping qmake step.
    14:50:27: Starting: "/usr/bin/make" 
    g++ -Wl,-rpath,/home/tecnobit/Qt5.5.0/5.5/gcc_64 -o untitled main.o   -L/home/user/desktop/untitled
    /../../../MATLAB/R2016a/bin/glnxa64/ -lmex -leng 
    /usr/bin/ld: warning: libut.so, needed by /home/user/desktop/untitled/../../../MATLAB/R2016a
    /bin/glnxa64//libeng.so, not found (try using -rpath or -rpath-link)
    /usr/bin/ld: warning: libmx.so, needed by /home/user/desktop/untitled/../../../MATLAB/R2016a
    /bin/glnxa64//libeng.so, not found (try using -rpath or -rpath-link)
    /usr/bin/ld: warning: libmat.so, needed by /home/user/desktop/untitled/../../../MATLAB/R2016a
    /bin/glnxa64//libeng.so, not found (try using -rpath or -rpath-link)
    /usr/bin/ld: warning: libboost_system.so.1.56.0, needed by /home/user/desktop/untitled/../../../MATLAB
    /R2016a/bin/glnxa64//libeng.so, not found (try using -rpath or -rpath-link)
    /usr/bin/ld: warning: libmwcpp11compat.so, needed by /home/user/desktop/untitled/../../../MATLAB
    /R2016a/bin/glnxa64//libeng.so, not found (try using -rpath or -rpath-link)
    /home/user/desktop/untitled/../../../MATLAB/R2016a/bin/glnxa64//libeng.so: undefined reference to 
    `utF2cstr'
    /home/user/desktop/untitled/../../../MATLAB/R2016a/bin/glnxa64//libeng.so: undefined reference to 
    `utFree'
    /home/user/desktop/untitled/../../../MATLAB/R2016a/bin/glnxa64//libeng.so: undefined reference to 
    `matClose'
    /home/user/desktop/untitled/../../../MATLAB/R2016a/bin/glnxa64//libeng.so: undefined reference to 
    `matPutNextVariable'
    /home/user/desktop/untitled/../../../MATLAB/R2016a/bin/glnxa64//libeng.so: undefined reference to 
    `matCreateMATFile'
    /home/user/desktop/untitled/../../../MATLAB/R2016a/bin/glnxa64//libeng.so: undefined reference to 
    `matrix::detail::noninlined::mx_array_api::mxDestroyArray(mxArray_tag*)'
    /home/user/desktop/untitled/../../../MATLAB/R2016a/bin/glnxa64//libeng.so: undefined reference to 
    `matGetNextVariable'
    /home/user/desktop/untitled/../../../MATLAB/R2016a/bin/glnxa64//libeng.so: undefined reference to 
    `utCalloc'
    collect2: error: ld returned 1 exit status
    make: *** [untitled] Error 1
    14:50:27: The process "/usr/bin/make" exited with code 2.
    Error while building/deploying project untitled (kit: Desktop Qt 5.5.0 GCC 64bit)
    When executing step "Make"
    14:50:27: Elapsed time: 00:00.

Everything that i found in google couldn't help, can somebody help me i've got really no idea what to do...

[MEHMET CAN KARAGÖZ]

Is there a solution to this problem?