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

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  • J JonB
    21 Feb 2020, 08:23

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

    @JonB Did you use Qt provided by the distribution?

    Yes, absolutely, the Qt 5.12.2 which came with Ubuntu 19.04 was adequate for me. I didn't see anything in OP's question which said he had built Qt for himself. Given that, I have never had to build/configure Qt, any the libraries to hook Qt to MySQL also come from apt-get. Hence why I was asking whether that will have changed at 19.10? Because if so I shall not be moving off 19.04 till I have to, hence my question....

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    jsulm
    Lifetime Qt Champion
    wrote on 21 Feb 2020, 08:26 last edited by
    #18

    @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

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

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

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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
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      • 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?

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        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
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        • 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).

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          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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            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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              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
                
                
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                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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                  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?

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                    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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                      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
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                        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, 13:46

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