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Qt app without window manager.

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  • C Offline
    C Offline
    Cyrilb
    wrote on last edited by
    #8

    Webkit would've ben nice.

    Ok, i am trying to build without webkit but i have to delete the webkit directory because the configure script has no option to remove webkit from commpiling. "-no-web" and " nomake webkit " do no work.

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    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #9

      IIRC, building webkit statically has always been problematic.

      Also, don't forget the licensing implication of building Qt statically

      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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      • C Offline
        C Offline
        Cyrilb
        wrote on last edited by
        #10

        Ahhh painful.

        The error now is:

        @make[3]: Leaving directory /home/user/Qt5.1Git/qt5/qtbase/src/network' make[3]: Entering directory /home/user/Qt5.1Git/qt5/qtbase/src/network'
        make[3]: Warning: File ../../.qmake.cache' has modification time 1.6e+04 s in the future /home/user/Qt5.1Git/qt5/qtbase/bin/qmake -o Makefile network.pro Project MESSAGE: perl -w /home/user/Qt5.1Git/qt5/qtbase/bin/syncqt.pl -module QtNetwork -version 5.1.2 -outdir /home/user/Qt5.1Git/qt5/qtbase /home/user/Qt5.1Git/qt5/qtbase <srcbase> = /home/user/Qt5.1Git/qt5/qtbase <outbase> = /home/user/Qt5.1Git/qt5/qtbase make[3]: Leaving directory /home/user/Qt5.1Git/qt5/qtbase/src/network'
        make[3]: Entering directory /home/user/Qt5.1Git/qt5/qtbase/src/network' make[3]: Warning: File ../../.qmake.cache' has modification time 1.6e+04 s in the future
        /home/user/Qt5.1Git/qt5/qtbase/bin/qmake -o Makefile network.pro
        Project MESSAGE: perl -w /home/user/Qt5.1Git/qt5/qtbase/bin/syncqt.pl -module QtNetwork -version 5.1.2 -outdir /home/user/Qt5.1Git/qt5/qtbase /home/user/Qt5.1Git/qt5/qtbase
        <srcbase> = /home/user/Qt5.1Git/qt5/qtbase
        <outbase> = /home/user/Qt5.1Git/qt5/qtbase
        @

        it is constantly printing this. Looks like it is stuck in a loop printing this all the time.

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        • SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on last edited by
          #11

          You seem to have some problem with your system clock...

          You should restart your build from a clean source tree and use a shadow build directory.

          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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          • C Offline
            C Offline
            Cyrilb
            wrote on last edited by
            #12

            What do you mean by system clock? I am using a virtual machine for this.

            The only thing that is not working from that guide is : scl enable devtoolset-1.1 bash

            Now i restarted the system and started a new build under root without webkit.

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            • SGaistS Offline
              SGaistS Offline
              SGaist
              Lifetime Qt Champion
              wrote on last edited by
              #13

              This line

              @make[3]: Warning: File `../../.qmake.cache' has modification time 1.6e+04 s in the future
              @

              made me think of a clock problem

              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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              • C Offline
                C Offline
                Cyrilb
                wrote on last edited by
                #14

                Finally some progress.

                The build finished fine. I also built my first app. All ok.

                But when i try to run the app i get an error:
                @QFontDatabase: Cannot find font directory /usr/local/Qt-5.1.2/lib/fonts - is Qt installed correctly?@

                At this stage i haven't executed make install . A note on the guide says :
                @Note: Installation is only needed if you haven’t used the configure options -developer-build or -prefix “PWD/qtbase”. Otherwise you can just use Qt from the build directory.@

                And i didn't put -developer-build in my build configuration.
                Could this be the problem?

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                • SGaistS Offline
                  SGaistS Offline
                  SGaist
                  Lifetime Qt Champion
                  wrote on last edited by
                  #15

                  You need to have this folder on your target computer

                  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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                  • C Offline
                    C Offline
                    Cyrilb
                    wrote on last edited by
                    #16

                    Which directory? PWD/qtbase or /usr/local/Qt-5.1.2/lib/fonts ?
                    What should it contain?

                    I will also try a build with -developer-build but currently gitorious is down.

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                    • SGaistS Offline
                      SGaistS Offline
                      SGaist
                      Lifetime Qt Champion
                      wrote on last edited by
                      #17

                      /usr/local/Qt-5.1.2/lib/fonts, you need it on your target computer, the one running without window manager. It must contain the font files

                      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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                      • C Offline
                        C Offline
                        Cyrilb
                        wrote on last edited by
                        #18

                        Ok, on dev platform it worked. The compiled binary is around 150MB.

                        In the target at first it failed because it couldn't find libicudata.so.48 libicuuc.so.48 libicui18n.so.48 which is strange because i compiled it statically.
                        Do i need any thing extra in the .pro file for static building the app ?

                        After copying the requested libs in the target /usr/lib a new error appeared:
                        @QXcbConnection Could not connect to display@

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                        • SGaistS Offline
                          SGaistS Offline
                          SGaist
                          Lifetime Qt Champion
                          wrote on last edited by
                          #19

                          You can build a static library but still have shared dependency.

                          IIRC you need to tell your application which plugin you want to use

                          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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                          • C Offline
                            C Offline
                            Cyrilb
                            wrote on last edited by
                            #20

                            Ok, but why is qt still trying to use xcb, i built it for linuxfb?

                            My build configuration is:
                            @./configure -opensource -release -force-debug-info -confirm-license -static -qt-sql-mysql -qt-zlib -qt-libpng -qt-libjpeg -no-openssl -no-pch -linuxfb -nomake examples -nomake tests
                            @

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                            • SGaistS Offline
                              SGaistS Offline
                              SGaist
                              Lifetime Qt Champion
                              wrote on last edited by
                              #21

                              Just wild guess, but it might be that linuxfb is built additionally to xcb

                              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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                              • C Offline
                                C Offline
                                Cyrilb
                                wrote on last edited by
                                #22

                                I just finnished rebuilding a fresh copy and if put -no-xcb the compilation fails with error:
                                @g++ -Wl,-rpath-link,/qt51/qtjsbackend/lib -o ../../bin/qmlplugindump .obj/release-static/main.o .obj/release-static/qmlstreamwriter.o .obj/release-static/qmlplugindump_plugin_import.o -L/qt51/qtdeclarative/lib -lQt5Quick -L/qt51/qtbase/lib -L/qt51/qtjsbackend/lib -lQt5Qml -lQt5V8 -lQt5Network -L/qt51/qtbase/plugins/platforms -lqminimal -lQt5PlatformSupport -lfontconfig -lfreetype -lXext -lX11 -lXrender -lQt5Gui -lQt5Core -licui18n -licuuc -lm -ldl -pthread -lgthread-2.0 -lglib-2.0 -lrt -lGL -lpthread
                                /usr/bin/ld: cannot find -lqxcb
                                collect2: error: ld returned 1 exit status
                                make[3]: *** [../../bin/qmlscene] Error 1
                                make[3]: Leaving directory /qt51/qtdeclarative/tools/qmlscene' make[2]: *** [sub-qmlscene-make_first] Error 2 make[2]: *** Waiting for unfinished jobs.... /qt51/qtbase/lib/libQt5Gui.a(qimage.o): In function memset':
                                /usr/include/i386-linux-gnu/bits/string3.h:81: warning: memset used with constant zero length parameter; this could be due to transposed parameters
                                make[3]: Leaving directory /qt51/qtdeclarative/tools/qmlplugindump' make[2]: Leaving directory /qt51/qtdeclarative/tools'
                                make[1]: *** [sub-tools-make_first] Error 2
                                make[1]: Leaving directory `/qt51/qtdeclarative'
                                make: *** [module-qtdeclarative-make_first] Error 2
                                @

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                                • SGaistS Offline
                                  SGaistS Offline
                                  SGaist
                                  Lifetime Qt Champion
                                  wrote on last edited by
                                  #23

                                  Did you cleanup before rebuilding ?

                                  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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                                  • C Offline
                                    C Offline
                                    Cyrilb
                                    wrote on last edited by
                                    #24

                                    It was a fresh build in a new directory.

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                                    • SGaistS Offline
                                      SGaistS Offline
                                      SGaist
                                      Lifetime Qt Champion
                                      wrote on last edited by
                                      #25

                                      Did you try with -qpa linuxfb ?

                                      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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                                      • C Offline
                                        C Offline
                                        Cyrilb
                                        wrote on last edited by
                                        #26

                                        This is my configuration now:
                                        @sudo ./configure -opensource -release -force-debug-info -confirm-license -static -qt-sql-mysql -qt-zlib -qt-libpng -qt-libjpeg -no-openssl -no-pch -qpa linuxfb -no-xcb -nomake examples -nomake tests@

                                        @Build options:
                                        Configuration .......... accessibility alsa audio-backend avx avx2 c++11 clock-gettime

                                        clock-monotonic compile_examples concurrent cups dbus evdev eventfd fontconfig

                                        force_debug_info full-config getaddrinfo getifaddrs gif glib gstreamer gtk2 gtkstyle iconv

                                        icu inotify ipv6ifname jpeg large-config largefile linuxfb medium-config minimal-config

                                        mremap nis opengl pcre png pulseaudio qpa qpa reduce_exports reduce_relocations release rpath

                                        small-config sse2 sse3 sse4_1 sse4_2 ssse3 static system-freetype v8 v8snapshot xlib xrender

                                        zlib
                                        Build parts ............ libs tools
                                        Mode ................... release (with debug info)
                                        Using C++11 ............ yes
                                        Using PCH .............. no
                                        Target compiler supports:
                                        SSE2/SSE3/SSSE3 ...... yes/yes/yes
                                        SSE4.1/SSE4.2 ........ yes/yes
                                        AVX/AVX2 ............. yes/yes

                                        Qt modules and options:
                                        Qt D-Bus ............... yes (loading dbus-1 at runtime)
                                        Qt Concurrent .......... yes
                                        Qt GUI ................. yes
                                        Qt Widgets ............. yes
                                        JavaScriptCore JIT ..... yes (To be decided by JavaScriptCore)
                                        QML debugging .......... yes
                                        Use system proxies ..... no

                                        Support enabled for:
                                        Accessibility .......... yes
                                        ALSA ................... yes
                                        CUPS ................... yes
                                        FontConfig ............. yes
                                        Iconv .................. yes
                                        ICU .................... yes
                                        Image formats:
                                        GIF .................. yes (in QtGui, using system library)
                                        JPEG ................. yes (in QtGui, using bundled copy)
                                        PNG .................. yes (in QtGui, using bundled copy)
                                        Glib ................... yes
                                        GStreamer .............. yes
                                        GTK theme .............. yes
                                        Large File ............. yes
                                        libudev ................ no
                                        Networking:
                                        getaddrinfo .......... yes
                                        getifaddrs ........... yes
                                        IPv6 ifname .......... yes
                                        OpenSSL .............. no
                                        NIS .................... yes
                                        OpenGL ................. desktop
                                        OpenVG ................. no
                                        PCRE ................... yes (bundled copy)
                                        pkg-config ............. yes
                                        PulseAudio ............. yes
                                        QPA backends:
                                        DirectFB ............. no
                                        EGLFS ................ no
                                        KMS .................. no
                                        LinuxFB .............. yes
                                        XCB .................. no
                                        Session management ..... yes
                                        SQL drivers:
                                        DB2 .................. no
                                        InterBase ............ no
                                        MySQL ................ qt
                                        OCI .................. no
                                        ODBC ................. no
                                        PostgreSQL ........... no
                                        SQLite 2 ............. no
                                        SQLite ............... yes (plugin, using bundled copy)
                                        TDS .................. no
                                        udev ................... no
                                        xkbcommon .............. no
                                        zlib ................... yes (bundled copy)
                                        @

                                        It is building now, fingers crossed.

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                                        • C Offline
                                          C Offline
                                          Cyrilb
                                          wrote on last edited by
                                          #27

                                          So far so great.

                                          I built twice. It failed the first time because i forgot to ommit the webkit, pfff.

                                          The second time it build perfectly with the above configuration. Thanks SGaist.

                                          So i quickly built a simple gui app and copied it in the target system and voila a window appeared :) .

                                          But, still a but, i don't have a mouse and keyboard. And the system is stuck at this point.

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