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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
    #7

    Unless you explicitly need webkit you should just not build it. That will save time and hassle

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    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
      #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

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                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

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                    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

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                            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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