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How can I cross-compile QT 5.0?

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  • S Offline
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    SGaist
    Lifetime Qt Champion
    wrote on 17 Nov 2014, 22:35 last edited by
    #22

    If you want to build a project with your cross-compiled Qt, use the corresponding qmake.

    Interested in AI ? www.idiap.ch
    Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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      T4QT
      wrote on 18 Nov 2014, 00:33 last edited by
      #23

      I think you are not getting my point. It is obvious for me to use the same qmake to build my project. If I use Qt =+ multimedia core, its working fine but the problem is with webkit,

      There are certain post about this same error but not satisfactory answer to this problem.
      so any clue on this part?
      Also when I omit webkit and create the application and try to run on the target is say

      Failed to load platform plugin xcb. I found one post by you and will go from there. http://qt-project.org/forums/viewthread/30825. Do I need xcb on host or target?

      But still not sure for webkit error.

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        T4QT
        wrote on 18 Nov 2014, 20:39 last edited by
        #24
        1. I don't have libqxcb.so library at my qt_install/plugins/platforms location.
          I have only libqlinuxfb.so . libqminimal.so and libqoffscreen.so
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          SGaist
          Lifetime Qt Champion
          wrote on 18 Nov 2014, 23:14 last edited by
          #25

          Are you running a X11 server on your target ?

          Interested in AI ? www.idiap.ch
          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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            T4QT
            wrote on 19 Nov 2014, 14:21 last edited by
            #26

            I am running linux-3.12 on my target. And I think the xcb requirement is for X11, can't I use the linux frame buffer to load my application?
            No idea how I can run any simple application? Please guide.

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              SGaist
              Lifetime Qt Champion
              wrote on 19 Nov 2014, 22:34 last edited by
              #27

              Yes, the xcb plugin is used for X11

              Sure you can, tell you application which plugin to load when starting it. More info "here":http://qt-project.org/doc/qt-5/embedded-linux.html

              Interested in AI ? www.idiap.ch
              Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                T4QT
                wrote on 20 Nov 2014, 04:05 last edited by
                #28

                ok so based on your link if I don't have X11, then I don't have to worry about XCB platform plugin. Instead I should try to enable LinuxFB.

                Shall I use QT_QPA_PLATFORM=linuxfb:fb=/dev/fb0 at the configuration time.

                And QT_QPA_GENERIC_PLUGINS=evdevkeyboard,evdevmouse,evdevtouch for the input, this is also at the configuration time.

                Am I right?

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                  SGaist
                  Lifetime Qt Champion
                  wrote on 21 Nov 2014, 00:14 last edited by
                  #29

                  At run time would be more exact

                  Interested in AI ? www.idiap.ch
                  Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                  • S Offline
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                    SGaist
                    Lifetime Qt Champion
                    wrote on 21 Nov 2014, 00:14 last edited by
                    #30

                    At run time would be more exact

                    Interested in AI ? www.idiap.ch
                    Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                      T4QT
                      wrote on 21 Nov 2014, 17:40 last edited by
                      #31

                      Hi SGaist,
                      Its been while we are communicating on the issue about how to successfully build and deploy the Qt application on the Arm board but nothing is coming up fruitful. I was wondering how best you can provide the help about the Qt?

                      Is it possible for you to provide some step by step guide, I also saw few of your communication with other interested people and those were left without fruitful outcome.

                      say I want to build application and deploy on the board: what are the things that I have to enable in kernel config, at the Qt config level and how to deploy application and deploying the Qt frame work:

                      On the board my file system is mounted through NFS, like this: bin, dev, etc, lib, proc, sbin, srv, sys, tmp, usr, var

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                        T4QT
                        wrote on 21 Nov 2014, 17:40 last edited by
                        #32

                        Hi SGaist,
                        Its been while we are communicating on the issue about how to successfully build and deploy the Qt application on the Arm board but nothing is coming up fruitful. I was wondering how best you can provide the help about the Qt?

                        Is it possible for you to provide some step by step guide, I also saw few of your communication with other interested people and those were left without fruitful outcome.

                        say I want to build application and deploy on the board: what are the things that I have to enable in kernel config, at the Qt config level and how to deploy application and deploying the Qt frame work:

                        On the board my file system is mounted through NFS, like this: bin, dev, etc, lib, proc, sbin, srv, sys, tmp, usr, var

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                        21 Nov 2014, 17:40

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