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Simplest way to install Qt in Ubuntu (19.10) with MySQL driver?

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  • J jsulm
    21 Feb 2020, 08:26

    @JonB said in Simplest way to install Qt in Ubuntu (19.10) with MySQL driver?:

    he had built Qt for himself

    It applies to Qt installed via installer as well

    J Offline
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    JonB
    wrote on 21 Feb 2020, 08:29 last edited by JonB
    #19

    @jsulm

    It applies to Qt installed via installer as well

    Hmm, I've never done that. Only ever apt-get. I hope I'm not hijacking (tell me if I am), but let's put it this way: if I move to a newer Ubuntu, and I want the Qt and the libqtmysql stuff as supplied with distro via apt-get, can I still do that (absolutely no compiling/building/configuring of either), or at 19.10+ has something been removed which means it won't work any longer?

    J 1 Reply Last reply 21 Feb 2020, 08:30
    0
    • J JonB
      21 Feb 2020, 08:29

      @jsulm

      It applies to Qt installed via installer as well

      Hmm, I've never done that. Only ever apt-get. I hope I'm not hijacking (tell me if I am), but let's put it this way: if I move to a newer Ubuntu, and I want the Qt and the libqtmysql stuff as supplied with distro via apt-get, can I still do that (absolutely no compiling/building/configuring of either), or at 19.10+ has something been removed which means it won't work any longer?

      J Offline
      J Offline
      jsulm
      Lifetime Qt Champion
      wrote on 21 Feb 2020, 08:30 last edited by
      #20

      @JonB said in Simplest way to install Qt in Ubuntu (19.10) with MySQL driver?:

      can I still do that

      Yes, the prebuild Qt provided by Ubuntu should have everything you need (but I did not yet use any of 19.x Ubuntu).

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

      J 1 Reply Last reply 21 Feb 2020, 08:32
      2
      • J jsulm
        21 Feb 2020, 08:30

        @JonB said in Simplest way to install Qt in Ubuntu (19.10) with MySQL driver?:

        can I still do that

        Yes, the prebuild Qt provided by Ubuntu should have everything you need (but I did not yet use any of 19.x Ubuntu).

        J Offline
        J Offline
        JonB
        wrote on 21 Feb 2020, 08:32 last edited by
        #21

        @jsulm
        That's great. Then at least the OP knows that if he is happy with the Qt version in the 19.10 distro has has the option of doing it all with no compiling etc. Having said that, his latest may imply he is now progressing OK with what he has, which is equally fine.

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        • E Offline
          E Offline
          enne9
          wrote on 21 Feb 2020, 13:09 last edited by enne9
          #22

          The make compilation completed successfully but make install terminates with the error

          g++: error: /home/enrico/Qt5.14.1/5.14.1/Src/qtvirtualkeyboard/lib/libqtopenwnn.a: No such file or directory
          

          Any idea?

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          • E Offline
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            enne9
            wrote on 21 Feb 2020, 13:20 last edited by enne9
            #23

            I have just noticed that I have used make instead of qmake. Is that the problem?

            Should I repeat the whole process using qmake and, if this is the case, should I clean run a make clean before?
            Thanks

            An update: now the error is

            Error copying ../../../lib/libQt5Bootstrap.a to /usr/local/Qt-5.14.1/lib/libQt5Bootstrap.a: Destination file exists
            
            
            J 1 Reply Last reply 21 Feb 2020, 13:24
            0
            • E enne9
              21 Feb 2020, 13:20

              I have just noticed that I have used make instead of qmake. Is that the problem?

              Should I repeat the whole process using qmake and, if this is the case, should I clean run a make clean before?
              Thanks

              An update: now the error is

              Error copying ../../../lib/libQt5Bootstrap.a to /usr/local/Qt-5.14.1/lib/libQt5Bootstrap.a: Destination file exists
              
              
              J Offline
              J Offline
              jsulm
              Lifetime Qt Champion
              wrote on 21 Feb 2020, 13:24 last edited by
              #24

              @enne9 Did you run qmake before make?
              The sequence is:

              • qmake
              • make
              • make install

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

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              • E Offline
                E Offline
                enne9
                wrote on 21 Feb 2020, 13:32 last edited by
                #25

                I used

                ./configure -sql-mysql
                make
                make install
                

                How can I proceed now? Do I need to clean (using which commands?) and do the operations in the order you listed?

                J 1 Reply Last reply 21 Feb 2020, 13:36
                0
                • E enne9
                  21 Feb 2020, 13:32

                  I used

                  ./configure -sql-mysql
                  make
                  make install
                  

                  How can I proceed now? Do I need to clean (using which commands?) and do the operations in the order you listed?

                  J Offline
                  J Offline
                  jsulm
                  Lifetime Qt Champion
                  wrote on 21 Feb 2020, 13:36 last edited by
                  #26

                  @enne9 As @SGaist already suggested do out of source builds, this way you will have less troubles.
                  Use "make clean" to clean up.

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

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                  • E Offline
                    E Offline
                    enne9
                    wrote on 21 Feb 2020, 13:46 last edited by
                    #27

                    Isn't qmake included in ./configure -sql-mysql? I just run it and the output is the same.

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                    • S Offline
                      S Offline
                      SGaist
                      Lifetime Qt Champion
                      wrote on 21 Feb 2020, 18:36 last edited by
                      #28

                      It's the first thing that gets built however, you are currently making things more complicated than necessary. You should just build the plugin using your already installed Qt rather than the full thing.

                      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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                      21 Feb 2020, 18:36

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