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Problems compiling Qt 5.8 on Debian 8.7.1

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  • H Offline
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    Harry123
    wrote on 20 Mar 2017, 13:10 last edited by
    #8

    @SGaist - A very clean slate : I deleted the folder and re-unpacked from the tar.gz file.

    @JiujiuTong - No solution. I'm trying another Linux distribution before putting up a bug report.

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    • S Offline
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      SGaist
      Lifetime Qt Champion
      wrote on 20 Mar 2017, 21:45 last edited by
      #9

      What exact configure options did you give ?

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

      J 1 Reply Last reply 21 Mar 2017, 00:47
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      • S SGaist
        20 Mar 2017, 21:45

        What exact configure options did you give ?

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        JiujiuTong
        wrote on 21 Mar 2017, 00:47 last edited by
        #10

        @SGaist
        my configure is :
        "./configure -release -opengl es2 -skip webengine -device linux-rasp-pi2-g++ -device-option CROSS_COMPILE=~/raspi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/arm-linux-gnueabihf- -sysroot ~/raspi/sysroot -opensource -confirm-license -make libs -prefix /usr/local/qt5pi -extprefix ~/raspi/qt5pi -hostprefix ~/raspi/qt5 -v "
        my host is centos 7, the target is raspberry pi3, trying with cross compiler way,and should i take "-no-opengl" do you think?

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        • S Offline
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          SGaist
          Lifetime Qt Champion
          wrote on 21 Mar 2017, 08:14 last edited by
          #11

          @JiujiuTong wait a minute, there's a problem here, you are mixing a cross-compilation problem which is not related to the problem at hand for @Harry123 which is just trying to compile Qt for its desktop.

          @Harry123 Can you share the configure line you used to compile Qt on your machine ?

          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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          • H Offline
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            Harry123
            wrote on 21 Mar 2017, 10:12 last edited by
            #12

            @SGaist :
            I first tried ./configure -debug which gave me the problem of QGLContext.
            I next tried ./configure -debug -no-opengl which gave me the problem of QQuickFramebufferObject.

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            • S Offline
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              SGaist
              Lifetime Qt Champion
              wrote on 21 Mar 2017, 11:32 last edited by
              #13

              Can you check with -opengl desktop ?

              I'd recommend doing out of source builds. That way you can just nuke the build folder is something goes wrong.

              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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              • H Offline
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                Harry123
                wrote on 21 Mar 2017, 13:11 last edited by
                #14

                @SGaist :

                It wouldn't work with -opengl desktop because already when I used just ./configure I had a message about opengl missing.

                I have anyway given up on compiling the sources - configure simply doesn't do the job correctly with the default flags, and each try takes hours.

                I have taken to using instead the online installer, which installs a viable version optionally with the sources.

                Would you know if I can use the online installer to install directly into the /usr folders such as /usr/bin, /usr/include etc. ? Or after the installation to copy the installed folders to there?

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                • S Offline
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                  SGaist
                  Lifetime Qt Champion
                  wrote on 21 Mar 2017, 13:27 last edited by
                  #15

                  In that case it means you don't have the OpenGL dev package installed.

                  You can't and you shouldn't even try. You'll be clearly messing with your distribution installation which is a very bad idea.

                  If you want to share your Qt installation with several users on your machine then use the default which is /opt otherwise, you can also simply install it in your home folder.

                  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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                  • H Offline
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                    Harry123
                    wrote on 21 Mar 2017, 13:43 last edited by
                    #16

                    @SGaist :
                    I'm the only user and the installation is on a VM.
                    I would like to reproduce the effect of Qt being installed from the repository, even though version 5.8 is not in it.

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                    • S Offline
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                      SGaist
                      Lifetime Qt Champion
                      wrote on 21 Mar 2017, 14:10 last edited by
                      #17

                      That's not a good idea. You are trying to replace your system Qt installation which has been built by the Debian folks in a state known to work for them.

                      Why do you want to replace it ?

                      If you want the Debian variant of Qt 5.8 then install the experimental version of Debian.

                      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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                      • H Offline
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                        Harry123
                        wrote on 21 Mar 2017, 15:34 last edited by
                        #18

                        @SGaist :
                        OK, I gave up on this idea. Unfortunate that a repository does not exist for QT 5.8 (Debian experimental only contains parts).
                        I will stay with the online installation and will give up on my ambition to compile Qt.
                        Too bad, as I wanted a real debug version for easier debugging.

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                        • S Offline
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                          SGaist
                          Lifetime Qt Champion
                          wrote on 21 Mar 2017, 20:18 last edited by
                          #19

                          Like I already wrote, there seems to be something missing on your system.

                          You should be able to build Qt 5.8 without any problem on Debian.

                          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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                          • H Offline
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                            Harry123
                            wrote on 22 Mar 2017, 20:24 last edited by Harry123
                            #20

                            @SGaist : Unfortunately we live in an imperfect world.
                            Thanks for your help - much appreciated.

                            I will mark this post as solved, even though it's not really, but I have no more time to spend on this.

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                            21 Mar 2017, 14:10

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