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Building Qt from Git

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  • M Offline
    M Offline
    Mechatronic
    wrote on 4 Apr 2014, 08:20 last edited by
    #1

    Hello All.
    I am tryed to build Qt5 from Git
    @
    git clone git://gitorious.org/qt/qt5.git qt5
    cd qt5
    perl init-repository
    unset QTDIR
    export PATH="$PWD/qtbase/bin:$PWD/qtrepotools/bin:$PATH"
    ./configure -developer-build -opensource -confirm-license -no-gtkstyle
    @

    And got error.

    @/home/user/qt5/qtbase/qmake/library/qmakebuiltins.cpp: In member function ‘QMakeEvaluator::VisitReturn QMakeEvaluator::evaluateBuiltinConditional(int, const ProKey&, const ProStringList&)’:
    /home/user/qt5/qtbase/qmake/library/qmakebuiltins.cpp:1490:98: error: ‘system’ was not declared in this scope
    + QLatin1String(" && ") + args.at(0)).toLocal8Bit().constData()) == 0);
    ^
    make: *** [qmakebuiltins.o] Error 1
    @

    Tell me please, what is wrong in my actions?

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    • S Offline
      S Offline
      sierdzio
      Moderators
      wrote on 4 Apr 2014, 08:49 last edited by
      #2

      Please follow "the guide":http://qt-project.org/wiki/Building_Qt_5_from_Git.

      Maybe you have checked out the dev branch, where things may fail occasionally.

      (Z(:^

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      0
      • M Offline
        M Offline
        Mechatronic
        wrote on 4 Apr 2014, 09:34 last edited by
        #3

        I followed that guide last time.
        There was stable branch.

        Thank you for attention.

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        0
        • S Offline
          S Offline
          sierdzio
          Moderators
          wrote on 4 Apr 2014, 09:37 last edited by
          #4

          Are you sure you have installed all dependencies?

          What OS are you using (I know it's Linux or Mac, please be specific)?

          (Z(:^

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          • M Offline
            M Offline
            Mechatronic
            wrote on 4 Apr 2014, 09:42 last edited by
            #5

            I use Ubuntu 3.10.
            Yes, I installed dependencies listed in guide.

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            • S Offline
              S Offline
              sierdzio
              Moderators
              wrote on 4 Apr 2014, 09:45 last edited by
              #6

              That should be working, then. You may have encountered a bug.

              (Z(:^

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              0
              • M Offline
                M Offline
                Mechatronic
                wrote on 4 Apr 2014, 09:47 last edited by
                #7

                I will try to repeat all sequence and report about result. Thanks a lot.

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                0
                • M Offline
                  M Offline
                  Mechatronic
                  wrote on 4 Apr 2014, 10:52 last edited by
                  #8

                  I tryed, but error is still here

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                  • J Offline
                    J Offline
                    JKSH
                    Moderators
                    wrote on 4 Apr 2014, 14:16 last edited by
                    #9

                    Hi,

                    Did you clean your build tree before you tried to start a new build?

                    Qt Doc Search for browsers: forum.qt.io/topic/35616/web-browser-extension-for-improved-doc-searches

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                    • M Offline
                      M Offline
                      Mechatronic
                      wrote on 7 Apr 2014, 08:07 last edited by
                      #10

                      Hi,
                      I cleared build dirrectory before new build.
                      I tryed to build Qt on other PC with the same version of Ubuntu and it builded successfully. Obviosly, problem is in concrete enviroment.

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                      • M Offline
                        M Offline
                        Mechatronic
                        wrote on 10 Apr 2014, 09:30 last edited by
                        #11

                        After build I tryed to install Qt and got many errors like:
                        @
                        make[3]: Entering directory /home/user/qt5/qtbase/src/tools/bootstrap' install -m 644 -p "../../../lib/libQt5Bootstrap.a" "/home/user/qt5/qtbase/lib/libQt5Bootstrap.a" install: ../../../lib/libQt5Bootstrap.a' and `/home/user/qt5/qtbase/lib/libQt5Bootstrap.a' are the same file
                        make[3]: [install_target] Error 1 (ignored)
                        @

                        please, help me

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                        0
                        • S Offline
                          S Offline
                          sierdzio
                          Moderators
                          wrote on 10 Apr 2014, 09:42 last edited by
                          #12

                          Developer builds should not be installed, configure explicitly warns against doing that!

                          (Z(:^

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                          0
                          • M Offline
                            M Offline
                            Mechatronic
                            wrote on 10 Apr 2014, 09:46 last edited by
                            #13

                            Why build is "development" if I took stable branch?
                            And what i shoud do to use builded Qt?

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                            • M Offline
                              M Offline
                              Mechatronic
                              wrote on 10 Apr 2014, 09:49 last edited by
                              #14

                              I did all like in http://qt-project.org/wiki/Building_Qt_5_from_Git guide. And guide say
                              @
                              To install, run
                              make install
                              @

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                              • S Offline
                                S Offline
                                sierdzio
                                Moderators
                                wrote on 10 Apr 2014, 09:56 last edited by
                                #15

                                You use -developer-build flag. That implies building with a prefix set to $PWD/qtbase, which does not require installation (once it is build it is also installed).

                                If the guide advises to install it after doing a developer build, then the guide is wrong. But just to be sure, please run the configure and see what it prints. If installation is not necessary, it will explicitly say so.

                                (Z(:^

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                                • M Offline
                                  M Offline
                                  Mechatronic
                                  wrote on 10 Apr 2014, 10:03 last edited by
                                  #16

                                  You are right. I do not delete " -developer-build" flag. Thank you.
                                  What should I do to use it now with Qt Creator? Qt Creator uses Qt 4.8 now.

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                                  0
                                  • S Offline
                                    S Offline
                                    sierdzio
                                    Moderators
                                    wrote on 10 Apr 2014, 10:29 last edited by
                                    #17

                                    Go to Tools->Preferences->Build & Run->Qt Versions and click "Add", then browse to your qmake binary (it's in <Qt dir>/qtbase/bin). That will add Qt to Qt Creator, but in order to use it, you need to create or modify an existing Kit.

                                    So, go to Kits tab and add a new one: you need to specify the compiler (the one you have used to compile Qt. If you use g++ and clang, they are binary compatible, so you can choose any of them) and your newly added Qt version.

                                    After that, Qt Creator will be fully configured. You can start using that Kit in your projects (open your project, go to Projects pane and add the new Kit).

                                    (Z(:^

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                                    • M Offline
                                      M Offline
                                      Mechatronic
                                      wrote on 10 Apr 2014, 10:44 last edited by
                                      #18

                                      when I add qmake, message "The default mkspec symlink is broken" appeared in status bar of "Qt Versions" tab. Is it critical?

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                                      • S Offline
                                        S Offline
                                        sierdzio
                                        Moderators
                                        wrote on 10 Apr 2014, 10:47 last edited by
                                        #19

                                        I have never encountered that. Try if it works.

                                        You have not cleared your Qt directory after erroneously running "make install"? It might have broken some paths. But if it works, you are fine. If it does not, you can try overriding MKSPECS in Qt Creator's Kit settings.

                                        (Z(:^

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                                        0
                                        • M Offline
                                          M Offline
                                          Mechatronic
                                          wrote on 10 Apr 2014, 10:53 last edited by
                                          #20

                                          No, it is not works - I can not chose Qt5 build configuration for new project.
                                          There is not "Kits" tab, but there is "Tool chains" tab. And there is "auto-detected" group, which contain GCC 64 and 32 bit.
                                          What is MKSPECS?

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