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Qt app without window manager.

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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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                                        • SGaistS Offline
                                          SGaistS Offline
                                          SGaist
                                          Lifetime Qt Champion
                                          wrote on last edited by
                                          #28

                                          Great !

                                          You can also move/remove the webkit folder if you want to avoid that.

                                          Are both detected on your target system ?

                                          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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