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  4. Reinstall Qt5 with QtMultimedia using Ubuntu Mate

Reinstall Qt5 with QtMultimedia using Ubuntu Mate

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  • X Xenoshell

    @SGaist
    Oh well, here are some errors.. Should i be worried or not?

    /usr/lib/gcc/arm-linux-gnueabihf/5/../../../arm-linux-gnueabihf/crt1.o(.text+0x28): error: undefined reference to 'main'
    collect2: error: ld returned 1 exit status
    Makefile:81: recipe for target 'schema' failed
    make[4]: *** [schema] Error 1
    make[4]: Leaving directory '/home/blz/Downloads/qt-everywhere-opensource-src-5.9.3/qtxmlpatterns/examples/xmlpatterns/schema'
    Makefile:122: recipe for target 'sub-schema-make_first' failed
    make[3]: *** [sub-schema-make_first] Error 2
    make[3]: Leaving directory '/home/blz/Downloads/qt-everywhere-opensource-src-5.9.3/qtxmlpatterns/examples/xmlpatterns'
    Makefile:44: recipe for target 'sub-xmlpatterns-make_first' failed
    make[2]: *** [sub-xmlpatterns-make_first] Error 2
    make[2]: Leaving directory '/home/blz/Downloads/qt-everywhere-opensource-src-5.9.3/qtxmlpatterns/examples'
    Makefile:97: recipe for target 'sub-examples-make_first' failed
    make[1]: *** [sub-examples-make_first] Error 2
    make[1]: Leaving directory '/home/blz/Downloads/qt-everywhere-opensource-src-5.9.3/qtxmlpatterns'
    Makefile:282: recipe for target 'module-qtxmlpatterns-make_first' failed
    make: *** [module-qtxmlpatterns-make_first] Error 2
    

    I am gonna not use make install just yet, because errors and wait for your answer.

    JonBJ Offline
    JonBJ Offline
    JonB
    wrote on last edited by
    #30

    @Xenoshell
    Just to let you know: I am the person who tried to help with your original "why I am unable to use the camera without freezing?" question!

    I see this thread is getting long, I do hope my advice to sort out your multimedia installation fully is worth it for all this compiling etc. you're doing, and not a red-herring...!!

    1 Reply Last reply
    0
    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by SGaist
      #31

      Don't build the tests nor the example, especially since your are cross-compiling. There's no use for that and you'll waste space, time and electricity for nothing.

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

      X 1 Reply Last reply
      1
      • SGaistS SGaist

        Don't build the tests nor the example, especially since your are cross-compiling. There's no use for that and you'll waste space, time and electricity for nothing.

        X Offline
        X Offline
        Xenoshell
        wrote on last edited by Xenoshell
        #32

        @SGaist So are the errors now important or can i just install without worries?
        @JonB I just wanna cross out all possibilities what could be wrong

        jsulmJ 1 Reply Last reply
        0
        • X Xenoshell

          @SGaist So are the errors now important or can i just install without worries?
          @JonB I just wanna cross out all possibilities what could be wrong

          jsulmJ Offline
          jsulmJ Offline
          jsulm
          Lifetime Qt Champion
          wrote on last edited by
          #33

          @Xenoshell As you can see from what you posted those errors are coming from examples. As @SGaist suggested there is no need to build examples and tests (so, no these errors are not important). Use -skip to not to build examples and tests.

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

          X 1 Reply Last reply
          0
          • jsulmJ jsulm

            @Xenoshell As you can see from what you posted those errors are coming from examples. As @SGaist suggested there is no need to build examples and tests (so, no these errors are not important). Use -skip to not to build examples and tests.

            X Offline
            X Offline
            Xenoshell
            wrote on last edited by
            #34

            @jsulm yeah, since make is now finished its a little bit too late to skip the examples. But its good to know that those errors dont matter

            1 Reply Last reply
            0
            • X Offline
              X Offline
              Xenoshell
              wrote on last edited by
              #35

              @jsulm , @JonB somehow in the qt5 folder there is no qtmultimedia. I think i am going mental

              jsulmJ 1 Reply Last reply
              0
              • X Xenoshell

                @jsulm , @JonB somehow in the qt5 folder there is no qtmultimedia. I think i am going mental

                jsulmJ Offline
                jsulmJ Offline
                jsulm
                Lifetime Qt Champion
                wrote on last edited by
                #36

                @Xenoshell make install ?

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

                X 1 Reply Last reply
                0
                • jsulmJ jsulm

                  @Xenoshell make install ?

                  X Offline
                  X Offline
                  Xenoshell
                  wrote on last edited by
                  #37

                  @jsulm yeah already did that

                  jsulmJ 1 Reply Last reply
                  0
                  • X Xenoshell

                    @jsulm yeah already did that

                    jsulmJ Offline
                    jsulmJ Offline
                    jsulm
                    Lifetime Qt Champion
                    wrote on last edited by jsulm
                    #38

                    @Xenoshell Do you mean there is no libQt5Multimedia.* in lib directory and no header files?

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

                    X 1 Reply Last reply
                    0
                    • jsulmJ jsulm

                      @Xenoshell Do you mean there is no libQt5Multimedia.* in lib directory and no header files?

                      X Offline
                      X Offline
                      Xenoshell
                      wrote on last edited by Xenoshell
                      #39

                      @jsulm nope in the lib folder there is only just everything else. Here is my command i used ./configure -opengl desktop -gui -widgets -gstreamer -pulseaudio -alsa -ffmpeg -dbus-linked, Do i maybe have to also add -multimedia?? I dont think there even is that command, but what do i have to do to install QtMultimedia

                      1 Reply Last reply
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                      • SGaistS Offline
                        SGaistS Offline
                        SGaist
                        Lifetime Qt Champion
                        wrote on last edited by
                        #40

                        Are you calling configure from the top folder ?
                        If so, did you clean everything before calling configure again ?

                        As I suggest every time: use out of source builds, that way if something goes wrong or you want to use a different set of option, you can simply nuke everything or change the folder and you know for sure you start from a clean state.

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

                        X 1 Reply Last reply
                        0
                        • SGaistS SGaist

                          Are you calling configure from the top folder ?
                          If so, did you clean everything before calling configure again ?

                          As I suggest every time: use out of source builds, that way if something goes wrong or you want to use a different set of option, you can simply nuke everything or change the folder and you know for sure you start from a clean state.

                          X Offline
                          X Offline
                          Xenoshell
                          wrote on last edited by
                          #41

                          @SGaist i called configure from the top folder i got from the .tar.gz file. I just deleted config.cache before calling configure again. How would i go about cleaning everything before calling configure again? What are out of source builds?

                          1 Reply Last reply
                          0
                          • SGaistS Offline
                            SGaistS Offline
                            SGaist
                            Lifetime Qt Champion
                            wrote on last edited by
                            #42

                            make distclean or make confclean

                            As the name suggests: builds that happens out of the source tree.

                            Basically:

                            mkdir /home/your_user/build_qt5
                            pushd /home/your_user/build_qt5
                            /path/to/Qt_sources/configure -nomake tests -nomake examples
                            make -j (number_of_cores * 2 + 1)
                            make install
                            popd
                            

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

                            X 1 Reply Last reply
                            0
                            • SGaistS SGaist

                              make distclean or make confclean

                              As the name suggests: builds that happens out of the source tree.

                              Basically:

                              mkdir /home/your_user/build_qt5
                              pushd /home/your_user/build_qt5
                              /path/to/Qt_sources/configure -nomake tests -nomake examples
                              make -j (number_of_cores * 2 + 1)
                              make install
                              popd
                              
                              X Offline
                              X Offline
                              Xenoshell
                              wrote on last edited by Xenoshell
                              #43

                              @SGaist Ok, is this even useful now? I mean i already installed Qt5 so isnt it a little bit too late?
                              Btw in my other post about my code are some new outputs since i installed Qt5.

                              1 Reply Last reply
                              0
                              • SGaistS Offline
                                SGaistS Offline
                                SGaist
                                Lifetime Qt Champion
                                wrote on last edited by
                                #44

                                It will be in the future when you'll build Qt again.

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

                                1 Reply Last reply
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