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Including MQTT wrapper for mosquitto library on windows

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  • D Dean21
    1 Dec 2023, 09:43

    @Dean21 Yes I also fixed the libs part in the pro file with the quotes as well.
    So what can I do to try and get it to link, the kit used when I made this project says it is Desktop Qt 6.4.1 MinGW 64-bit for the compiler.

    Thanks for the help

    J Offline
    J Offline
    jsulm
    Lifetime Qt Champion
    wrote on 1 Dec 2023, 09:56 last edited by
    #9

    @Dean21 I think on Windows you need to link differently (see https://doc.qt.io/qt-6/qmake-variable-reference.html#libs):

    unix:LIBS += -L/usr/local/lib -lmath
    win32:LIBS += c:/mylibs/math.lib
    

    So, you need to use a path to the *.lib file of the library.

    "the kit used when I made this project says it is Desktop Qt 6.4.1 MinGW 64-bit for the compiler" - the question is - what compiler was used to build that library? If MSVC was used it is not going to work. You need a MinGW build of the lib.

    https://forum.qt.io/topic/113070/qt-code-of-conduct

    D 1 Reply Last reply 1 Dec 2023, 10:00
    0
    • S starkm42
      1 Dec 2023, 09:49

      @Dean21 i am thinking this is because you forgot to add DEPENDPATH

      source: https://doc.qt.io/qt-6/qmake-variable-reference.html#dependpath

      Specifies a list of directories for qmake to scan, to resolve dependencies. This variable is used when qmake crawls through the header files that you #include in your source code.
      

      when using 3rd party libraries, this method is much more easy and less error prone. https://doc.qt.io/qtcreator/creator-project-qmake-libraries.html

      Qt modifies your qmake file for you.

      D Offline
      D Offline
      Dean21
      wrote on 1 Dec 2023, 09:57 last edited by
      #10

      @starkm42 Thanks for the reply, that seemed to work to remove a lot of the linking errors but not I get this one error I havent seen before

      :-1: error: No rule to make target 'C:/Users/deanm/Desktop/Uni_Year_3/3rd_year_project/Microscope_GUI_V2/Microscope_GUI/../../../../../../../Program Files/mosquitto/devel/libmosquittoppd.a', needed by 'debug/Microscope_GUI.exe'. Stop.

      J 1 Reply Last reply 1 Dec 2023, 09:59
      0
      • D Dean21
        1 Dec 2023, 09:57

        @starkm42 Thanks for the reply, that seemed to work to remove a lot of the linking errors but not I get this one error I havent seen before

        :-1: error: No rule to make target 'C:/Users/deanm/Desktop/Uni_Year_3/3rd_year_project/Microscope_GUI_V2/Microscope_GUI/../../../../../../../Program Files/mosquitto/devel/libmosquittoppd.a', needed by 'debug/Microscope_GUI.exe'. Stop.

        J Offline
        J Offline
        jsulm
        Lifetime Qt Champion
        wrote on 1 Dec 2023, 09:59 last edited by
        #11

        @Dean21 How does your pro file look like now?

        https://forum.qt.io/topic/113070/qt-code-of-conduct

        D 1 Reply Last reply 1 Dec 2023, 10:00
        0
        • J jsulm
          1 Dec 2023, 09:56

          @Dean21 I think on Windows you need to link differently (see https://doc.qt.io/qt-6/qmake-variable-reference.html#libs):

          unix:LIBS += -L/usr/local/lib -lmath
          win32:LIBS += c:/mylibs/math.lib
          

          So, you need to use a path to the *.lib file of the library.

          "the kit used when I made this project says it is Desktop Qt 6.4.1 MinGW 64-bit for the compiler" - the question is - what compiler was used to build that library? If MSVC was used it is not going to work. You need a MinGW build of the lib.

          D Offline
          D Offline
          Dean21
          wrote on 1 Dec 2023, 10:00 last edited by
          #12

          @jsulm I am not sure what compiler was used to compile the library, but as I have had this working in Qt creator before on linux with the same library I assumed it would work fine on windows

          S 1 Reply Last reply 1 Dec 2023, 10:24
          0
          • J jsulm
            1 Dec 2023, 09:59

            @Dean21 How does your pro file look like now?

            D Offline
            D Offline
            Dean21
            wrote on 1 Dec 2023, 10:00 last edited by
            #13

            @jsulm This is now my .pro file.

            QT       += core gui
            
            greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
            
            CONFIG += c++17
            
            #QMAKE_CXXFLAGS += -lmosquitto
            
            #INCLUDEPATH += "C:/Program Files/mosquitto/devel"
            
            #LIBS += -L"C:/Program Files/mosquitto/devel" -lmosquittopp
            
            # You can make your code fail to compile if it uses deprecated APIs.
            # In order to do so, uncomment the following line.
            #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
            
            SOURCES += \
                QMMqttClient.cpp \
                main.cpp \
                widget.cpp \
            
            HEADERS += \
                QMMqttClient.h \
                widget.h
            
            FORMS += \
                widget.ui
            
            # Default rules for deployment.
            qnx: target.path = /tmp/$${TARGET}/bin
            else: unix:!android: target.path = /opt/$${TARGET}/bin
            !isEmpty(target.path): INSTALLS += target
            
            win32:CONFIG(release, debug|release): LIBS += -L$$PWD/'../../../../../../../Program Files/mosquitto/devel/' -lmosquittopp
            else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/'../../../../../../../Program Files/mosquitto/devel/' -lmosquittoppd
            else:unix: LIBS += -L$$PWD/'../../../../../../../Program Files/mosquitto/devel/' -lmosquittopp
            
            INCLUDEPATH += $$PWD/'../../../../../../../Program Files/mosquitto/devel'
            DEPENDPATH += $$PWD/'../../../../../../../Program Files/mosquitto/devel'
            
            win32-g++:CONFIG(release, debug|release): PRE_TARGETDEPS += $$PWD/'../../../../../../../Program Files/mosquitto/devel/libmosquittopp.a'
            else:win32-g++:CONFIG(debug, debug|release): PRE_TARGETDEPS += $$PWD/'../../../../../../../Program Files/mosquitto/devel/libmosquittoppd.a'
            else:win32:!win32-g++:CONFIG(release, debug|release): PRE_TARGETDEPS += $$PWD/'../../../../../../../Program Files/mosquitto/devel/mosquittopp.lib'
            else:win32:!win32-g++:CONFIG(debug, debug|release): PRE_TARGETDEPS += $$PWD/'../../../../../../../Program Files/mosquitto/devel/mosquittoppd.lib'
            else:unix: PRE_TARGETDEPS += $$PWD/'../../../../../../../Program Files/mosquitto/devel/libmosquittopp.a'
            
            
            J 1 Reply Last reply 1 Dec 2023, 10:02
            0
            • D Dean21
              1 Dec 2023, 10:00

              @jsulm This is now my .pro file.

              QT       += core gui
              
              greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
              
              CONFIG += c++17
              
              #QMAKE_CXXFLAGS += -lmosquitto
              
              #INCLUDEPATH += "C:/Program Files/mosquitto/devel"
              
              #LIBS += -L"C:/Program Files/mosquitto/devel" -lmosquittopp
              
              # You can make your code fail to compile if it uses deprecated APIs.
              # In order to do so, uncomment the following line.
              #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
              
              SOURCES += \
                  QMMqttClient.cpp \
                  main.cpp \
                  widget.cpp \
              
              HEADERS += \
                  QMMqttClient.h \
                  widget.h
              
              FORMS += \
                  widget.ui
              
              # Default rules for deployment.
              qnx: target.path = /tmp/$${TARGET}/bin
              else: unix:!android: target.path = /opt/$${TARGET}/bin
              !isEmpty(target.path): INSTALLS += target
              
              win32:CONFIG(release, debug|release): LIBS += -L$$PWD/'../../../../../../../Program Files/mosquitto/devel/' -lmosquittopp
              else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/'../../../../../../../Program Files/mosquitto/devel/' -lmosquittoppd
              else:unix: LIBS += -L$$PWD/'../../../../../../../Program Files/mosquitto/devel/' -lmosquittopp
              
              INCLUDEPATH += $$PWD/'../../../../../../../Program Files/mosquitto/devel'
              DEPENDPATH += $$PWD/'../../../../../../../Program Files/mosquitto/devel'
              
              win32-g++:CONFIG(release, debug|release): PRE_TARGETDEPS += $$PWD/'../../../../../../../Program Files/mosquitto/devel/libmosquittopp.a'
              else:win32-g++:CONFIG(debug, debug|release): PRE_TARGETDEPS += $$PWD/'../../../../../../../Program Files/mosquitto/devel/libmosquittoppd.a'
              else:win32:!win32-g++:CONFIG(release, debug|release): PRE_TARGETDEPS += $$PWD/'../../../../../../../Program Files/mosquitto/devel/mosquittopp.lib'
              else:win32:!win32-g++:CONFIG(debug, debug|release): PRE_TARGETDEPS += $$PWD/'../../../../../../../Program Files/mosquitto/devel/mosquittoppd.lib'
              else:unix: PRE_TARGETDEPS += $$PWD/'../../../../../../../Program Files/mosquitto/devel/libmosquittopp.a'
              
              
              J Offline
              J Offline
              jsulm
              Lifetime Qt Champion
              wrote on 1 Dec 2023, 10:02 last edited by
              #14

              @Dean21 said in Including MQTT wrapper for mosquitto library on windows:

              else:unix: PRE_TARGETDEPS += $$PWD/'../../../../../../../Program Files/mosquitto/devel/libmosquittopp.a'

              Why do you have this?
              Your LIBS for Windows are still wrong.

              https://forum.qt.io/topic/113070/qt-code-of-conduct

              D 1 Reply Last reply 1 Dec 2023, 10:05
              0
              • J jsulm
                1 Dec 2023, 10:02

                @Dean21 said in Including MQTT wrapper for mosquitto library on windows:

                else:unix: PRE_TARGETDEPS += $$PWD/'../../../../../../../Program Files/mosquitto/devel/libmosquittopp.a'

                Why do you have this?
                Your LIBS for Windows are still wrong.

                D Offline
                D Offline
                Dean21
                wrote on 1 Dec 2023, 10:05 last edited by
                #15

                @jsulm Sorry forgot to untick linux and mac boxes, here is the .pro file, it still has the same error though.

                QT       += core gui
                
                greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
                
                CONFIG += c++17
                
                QMAKE_CXXFLAGS += -lmosquitto
                
                INCLUDEPATH += "C:/Program Files/mosquitto/devel"
                
                LIBS += -L"C:/Program Files/mosquitto/devel" -lmosquittopp
                
                # You can make your code fail to compile if it uses deprecated APIs.
                # In order to do so, uncomment the following line.
                #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
                
                SOURCES += \
                    QMMqttClient.cpp \
                    main.cpp \
                    widget.cpp \
                
                HEADERS += \
                    QMMqttClient.h \
                    widget.h
                
                FORMS += \
                    widget.ui
                
                # Default rules for deployment.
                qnx: target.path = /tmp/$${TARGET}/bin
                else: unix:!android: target.path = /opt/$${TARGET}/bin
                !isEmpty(target.path): INSTALLS += target
                
                win32:CONFIG(release, debug|release): LIBS += -L$$PWD/'../../../../../../../Program Files/mosquitto/devel/' -lmosquittopp
                else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/'../../../../../../../Program Files/mosquitto/devel/' -lmosquittoppd
                
                INCLUDEPATH += $$PWD/'../../../../../../../Program Files/mosquitto/devel'
                DEPENDPATH += $$PWD/'../../../../../../../Program Files/mosquitto/devel'
                
                win32-g++:CONFIG(release, debug|release): PRE_TARGETDEPS += $$PWD/'../../../../../../../Program Files/mosquitto/devel/libmosquittopp.a'
                else:win32-g++:CONFIG(debug, debug|release): PRE_TARGETDEPS += $$PWD/'../../../../../../../Program Files/mosquitto/devel/libmosquittoppd.a'
                else:win32:!win32-g++:CONFIG(release, debug|release): PRE_TARGETDEPS += $$PWD/'../../../../../../../Program Files/mosquitto/devel/mosquittopp.lib'
                else:win32:!win32-g++:CONFIG(debug, debug|release): PRE_TARGETDEPS += $$PWD/'../../../../../../../Program Files/mosquitto/devel/mosquittoppd.lib'
                
                

                Error: :-1: error: No rule to make target 'C:/Users/deanm/Desktop/Uni_Year_3/3rd_year_project/Microscope_GUI_V2/Microscope_GUI/../../../../../../../Program Files/mosquitto/devel/libmosquittoppd.a', needed by 'debug/Microscope_GUI.exe'. Stop.

                J 1 Reply Last reply 1 Dec 2023, 10:09
                0
                • D Dean21
                  1 Dec 2023, 10:05

                  @jsulm Sorry forgot to untick linux and mac boxes, here is the .pro file, it still has the same error though.

                  QT       += core gui
                  
                  greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
                  
                  CONFIG += c++17
                  
                  QMAKE_CXXFLAGS += -lmosquitto
                  
                  INCLUDEPATH += "C:/Program Files/mosquitto/devel"
                  
                  LIBS += -L"C:/Program Files/mosquitto/devel" -lmosquittopp
                  
                  # You can make your code fail to compile if it uses deprecated APIs.
                  # In order to do so, uncomment the following line.
                  #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
                  
                  SOURCES += \
                      QMMqttClient.cpp \
                      main.cpp \
                      widget.cpp \
                  
                  HEADERS += \
                      QMMqttClient.h \
                      widget.h
                  
                  FORMS += \
                      widget.ui
                  
                  # Default rules for deployment.
                  qnx: target.path = /tmp/$${TARGET}/bin
                  else: unix:!android: target.path = /opt/$${TARGET}/bin
                  !isEmpty(target.path): INSTALLS += target
                  
                  win32:CONFIG(release, debug|release): LIBS += -L$$PWD/'../../../../../../../Program Files/mosquitto/devel/' -lmosquittopp
                  else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/'../../../../../../../Program Files/mosquitto/devel/' -lmosquittoppd
                  
                  INCLUDEPATH += $$PWD/'../../../../../../../Program Files/mosquitto/devel'
                  DEPENDPATH += $$PWD/'../../../../../../../Program Files/mosquitto/devel'
                  
                  win32-g++:CONFIG(release, debug|release): PRE_TARGETDEPS += $$PWD/'../../../../../../../Program Files/mosquitto/devel/libmosquittopp.a'
                  else:win32-g++:CONFIG(debug, debug|release): PRE_TARGETDEPS += $$PWD/'../../../../../../../Program Files/mosquitto/devel/libmosquittoppd.a'
                  else:win32:!win32-g++:CONFIG(release, debug|release): PRE_TARGETDEPS += $$PWD/'../../../../../../../Program Files/mosquitto/devel/mosquittopp.lib'
                  else:win32:!win32-g++:CONFIG(debug, debug|release): PRE_TARGETDEPS += $$PWD/'../../../../../../../Program Files/mosquitto/devel/mosquittoppd.lib'
                  
                  

                  Error: :-1: error: No rule to make target 'C:/Users/deanm/Desktop/Uni_Year_3/3rd_year_project/Microscope_GUI_V2/Microscope_GUI/../../../../../../../Program Files/mosquitto/devel/libmosquittoppd.a', needed by 'debug/Microscope_GUI.exe'. Stop.

                  J Offline
                  J Offline
                  jsulm
                  Lifetime Qt Champion
                  wrote on 1 Dec 2023, 10:09 last edited by
                  #16

                  @Dean21 said in Including MQTT wrapper for mosquitto library on windows:

                  QMAKE_CXXFLAGS += -lmosquitto

                  Why?

                  And again: your LIBS for Windows are wrong!

                  I also don't know why you have static versions if you want to link dynamically:

                  else:win32-g++:CONFIG(debug, debug|release): PRE_TARGETDEPS += $$PWD/'../../../../../../../Program Files/mosquitto/devel/libmosquittoppd.a'
                  

                  Remove alls these *.a stuff.

                  https://forum.qt.io/topic/113070/qt-code-of-conduct

                  D 1 Reply Last reply 1 Dec 2023, 10:14
                  0
                  • J jsulm
                    1 Dec 2023, 10:09

                    @Dean21 said in Including MQTT wrapper for mosquitto library on windows:

                    QMAKE_CXXFLAGS += -lmosquitto

                    Why?

                    And again: your LIBS for Windows are wrong!

                    I also don't know why you have static versions if you want to link dynamically:

                    else:win32-g++:CONFIG(debug, debug|release): PRE_TARGETDEPS += $$PWD/'../../../../../../../Program Files/mosquitto/devel/libmosquittoppd.a'
                    

                    Remove alls these *.a stuff.

                    D Offline
                    D Offline
                    Dean21
                    wrote on 1 Dec 2023, 10:14 last edited by
                    #17

                    @jsulm My bad, this was done with dynamic and this is what was generated in the .pro file now.

                    QT       += core gui
                    
                    greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
                    
                    CONFIG += c++17
                    
                    QMAKE_CXXFLAGS += -lmosquitto
                    
                    INCLUDEPATH += "C:/Program Files/mosquitto/devel"
                    
                    LIBS += -L"C:/Program Files/mosquitto/devel" -lmosquittopp
                    
                    # You can make your code fail to compile if it uses deprecated APIs.
                    # In order to do so, uncomment the following line.
                    #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
                    
                    SOURCES += \
                        QMMqttClient.cpp \
                        main.cpp \
                        widget.cpp \
                    
                    HEADERS += \
                        QMMqttClient.h \
                        widget.h
                    
                    FORMS += \
                        widget.ui
                    
                    # Default rules for deployment.
                    qnx: target.path = /tmp/$${TARGET}/bin
                    else: unix:!android: target.path = /opt/$${TARGET}/bin
                    !isEmpty(target.path): INSTALLS += target
                    
                    win32:CONFIG(release, debug|release): LIBS += -L$$PWD/'../../../../../../../Program Files/mosquitto/devel/' -lmosquittopp
                    else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/'../../../../../../../Program Files/mosquitto/devel/' -lmosquittoppd
                    
                    INCLUDEPATH += $$PWD/'../../../../../../../Program Files/mosquitto/devel'
                    DEPENDPATH += $$PWD/'../../../../../../../Program Files/mosquitto/devel'
                    
                    

                    This now gives these errors:

                    :-1: error: cannot find -lmosquittoppd
                    :-1: error: cannot find -lmosquittod
                    :-1: error: collect2.exe: error: ld returned 1 exit status

                    1 Reply Last reply
                    0
                    • D Dean21
                      1 Dec 2023, 10:00

                      @jsulm I am not sure what compiler was used to compile the library, but as I have had this working in Qt creator before on linux with the same library I assumed it would work fine on windows

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                      starkm42
                      wrote on 1 Dec 2023, 10:24 last edited by starkm42 12 Jan 2023, 10:25
                      #18

                      @Dean21 wait are you using the same compiled library that you used for linux on windows without recompiling or getting new binaries compiled for windows ?

                      @Dean21 said in Including MQTT wrapper for mosquitto library on windows:

                      @jsulm I am not sure what compiler was used to compile the library, but as I have had this working in Qt creator before on linux with the same library I assumed it would work fine on windows

                      D 1 Reply Last reply 1 Dec 2023, 10:29
                      0
                      • S starkm42
                        1 Dec 2023, 10:24

                        @Dean21 wait are you using the same compiled library that you used for linux on windows without recompiling or getting new binaries compiled for windows ?

                        @Dean21 said in Including MQTT wrapper for mosquitto library on windows:

                        @jsulm I am not sure what compiler was used to compile the library, but as I have had this working in Qt creator before on linux with the same library I assumed it would work fine on windows

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                        Dean21
                        wrote on 1 Dec 2023, 10:29 last edited by
                        #19

                        @starkm42 No, i just redownloaded the library from the website and set it up to start with to make sure it was working before i tried to use it in qt

                        1 Reply Last reply
                        0
                        • D Offline
                          D Offline
                          Dean21
                          wrote on 1 Dec 2023, 11:11 last edited by
                          #20

                          I just re-added the library, but removed the tickbox for "add d suffix for debug", and that removes the errors about finding -mosquitoppd, but now I have all the same linker errors again.

                          S 1 Reply Last reply 1 Dec 2023, 11:21
                          0
                          • D Dean21
                            1 Dec 2023, 11:11

                            I just re-added the library, but removed the tickbox for "add d suffix for debug", and that removes the errors about finding -mosquitoppd, but now I have all the same linker errors again.

                            S Offline
                            S Offline
                            starkm42
                            wrote on 1 Dec 2023, 11:21 last edited by starkm42 12 Jan 2023, 11:22
                            #21

                            @Dean21

                            for adding a test library called NemaTode, after following the guide https://doc.qt.io/qtcreator/creator-project-qmake-libraries.html

                            this is what my qmake looks like

                            QT       += core gui positioning
                            
                            greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
                            
                            CONFIG += c++17
                            
                            # You can make your code fail to compile if it uses deprecated APIs.
                            # In order to do so, uncomment the following line.
                            #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
                            
                            SOURCES += \
                                gpssource.cpp \
                                main.cpp \
                                mainwindow.cpp
                            
                            HEADERS += \
                                gpssource.h \
                                mainwindow.h
                            
                            # Default rules for deployment.
                            qnx: target.path = /tmp/$${TARGET}/bin
                            else: unix:!android: target.path = /opt/$${TARGET}/bin
                            !isEmpty(target.path): INSTALLS += target
                            
                            win32:CONFIG(release, debug|release): LIBS += -L$$PWD/../../third_party_libs/NemaTode/lib/ -lNemaTode
                            else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/../../third_party_libs/NemaTode/lib/ -lNemaTode
                            else:unix: LIBS += -L$$PWD/../../third_party_libs/NemaTode/lib/ -lNemaTode
                            
                            INCLUDEPATH += $$PWD/../../third_party_libs/NemaTode/include/nmeaparse
                            DEPENDPATH += $$PWD/../../third_party_libs/NemaTode/include/nmeaparse
                            
                            FORMS += \
                                GPSCordinatesDisplay.ui
                            

                            mine does not have LIB or INCLUDEPATH
                            try removing all manual additions, just sticking to the guide would be my suggestion.

                            D 1 Reply Last reply 2 Dec 2023, 20:54
                            0
                            • S starkm42
                              1 Dec 2023, 11:21

                              @Dean21

                              for adding a test library called NemaTode, after following the guide https://doc.qt.io/qtcreator/creator-project-qmake-libraries.html

                              this is what my qmake looks like

                              QT       += core gui positioning
                              
                              greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
                              
                              CONFIG += c++17
                              
                              # You can make your code fail to compile if it uses deprecated APIs.
                              # In order to do so, uncomment the following line.
                              #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
                              
                              SOURCES += \
                                  gpssource.cpp \
                                  main.cpp \
                                  mainwindow.cpp
                              
                              HEADERS += \
                                  gpssource.h \
                                  mainwindow.h
                              
                              # Default rules for deployment.
                              qnx: target.path = /tmp/$${TARGET}/bin
                              else: unix:!android: target.path = /opt/$${TARGET}/bin
                              !isEmpty(target.path): INSTALLS += target
                              
                              win32:CONFIG(release, debug|release): LIBS += -L$$PWD/../../third_party_libs/NemaTode/lib/ -lNemaTode
                              else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/../../third_party_libs/NemaTode/lib/ -lNemaTode
                              else:unix: LIBS += -L$$PWD/../../third_party_libs/NemaTode/lib/ -lNemaTode
                              
                              INCLUDEPATH += $$PWD/../../third_party_libs/NemaTode/include/nmeaparse
                              DEPENDPATH += $$PWD/../../third_party_libs/NemaTode/include/nmeaparse
                              
                              FORMS += \
                                  GPSCordinatesDisplay.ui
                              

                              mine does not have LIB or INCLUDEPATH
                              try removing all manual additions, just sticking to the guide would be my suggestion.

                              D Offline
                              D Offline
                              Dean21
                              wrote on 2 Dec 2023, 20:54 last edited by
                              #22

                              @starkm42 Thanks for the reply, the issue was to do with the fact mosquitto was compiled with a different library. To avoid this I am just going to run a ubuntu VM Thanks everyone for the help.

                              1 Reply Last reply
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                              1 Dec 2023, 10:24

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