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Installation QT 5.11 on Raspberry Pi 3

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  • G gogoer

    is there any version of qr >5.10 that compiles normally on raspberry pi?
    i need to compile a little project with some gauges. Now i do it on qt5.3 wich goes with RPI in QTCreator. But i cant use QTQuickQontrols 2.3 there.

    sierdzioS Offline
    sierdzioS Offline
    sierdzio
    Moderators
    wrote on last edited by
    #7

    @gogoer said in Installation QT 5.11 on Raspberry Pi 3:

    is there any version of qr >5.10 that compiles normally on raspberry pi?

    No idea.

    qtbase usually compiles natively without issues. But it's definitely not checked regularly, as it is a niche use case. Last time I compiled qtbase + qtquick natively was around Qt 5.8 or 5.9 IIRC. It required some tweaking around OpenGL support. Maybe newer versions work, too, I don't know.

    (Z(:^

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    • G Offline
      G Offline
      gogoer
      wrote on last edited by
      #8

      @sierdzio said in Installation QT 5.11 on Raspberry Pi 3:

      Start with only qtbase

      sorry, but what this means?

      sierdzioS 1 Reply Last reply
      0
      • G gogoer

        @sierdzio said in Installation QT 5.11 on Raspberry Pi 3:

        Start with only qtbase

        sorry, but what this means?

        sierdzioS Offline
        sierdzioS Offline
        sierdzio
        Moderators
        wrote on last edited by
        #9

        @gogoer said in Installation QT 5.11 on Raspberry Pi 3:

        @sierdzio said in Installation QT 5.11 on Raspberry Pi 3:

        Start with only qtbase

        sorry, but what this means?

        Qt is comprised of many repositories, which contain modules inside. qtbase is the most basic repo, and contains QtCore, QtGui, QtNetwork and some other stuff.

        If you want to compile only qtbase, you have 3 options:

        • if you are using git repos, you need to call the init_repository script and specify qtbase only. More info: guide
        • if you are using Qt tarballs (I recommend this solution), you can simply remove all forlders apart from qtbase from the uncompressed tarball
        • you can also pass -skip qtmodulename to configure, but that would require you to pass all the modules apart from those found in qtbase... that's a lot of typing

        Then you just run configure as usual.

        (Z(:^

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        • sneubertS Offline
          sneubertS Offline
          sneubert
          wrote on last edited by
          #10

          hi @gogoer
          Just one side note. I periodically cross-compile qt with all working modules for rpi. This is done on a HP Z440 with 8 cores an 16GB RAM. The compilation takes about 2 hours.
          But even if you just compile qtbase, prepare for a long long time to wait, way longer than set up the cross-toolchain on a desktop.

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          • G Offline
            G Offline
            gogoer
            wrote on last edited by
            #11

            what folders i need to leave if i want only use basecal QT, QTQuick and QTQuickControls 2.3 and QML.

            sierdzioS 1 Reply Last reply
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            • G gogoer

              what folders i need to leave if i want only use basecal QT, QTQuick and QTQuickControls 2.3 and QML.

              sierdzioS Offline
              sierdzioS Offline
              sierdzio
              Moderators
              wrote on last edited by
              #12

              @gogoer said in Installation QT 5.11 on Raspberry Pi 3:

              what folders i need to leave if i want only use basecal QT, QTQuick and QTQuickControls 2.3 and QML.

              • qtbase
              • qtdeclarative
              • qtquickcontrols2

              Optionally:

              • qtsvg
              • qttools
              • qtx11extras
              • qtgraphicaleffects
              • qtmultimedia

              (Z(:^

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              • G Offline
                G Offline
                gogoer
                wrote on last edited by gogoer
                #13

                @sierdzio said in Installation QT 5.11 on Raspberry Pi 3:

                Use linux-g++ mkspecs instead of the Raspberry Pi one when you compile natively.

                what i need to do?

                i deleted folders, except your list.
                now i use config string:

                ../qt-everywhere-src-5.11.2/configure -v -opengl es2 -eglfs -no-gtk -device linux-rasp-pi-g++ \
                -opensource -confirm-license -reduce-exports \
                -force-pkg-config -nomake examples -no-compile-examples -release \
                -qt-pcre -ssl -evdev -system-freetype -fontconfig -glib -prefix /opt/qt5
                

                but i have error:

                Cannot compile minimal program. The toolchain or QMakeSpec is broken.
                
                sierdzioS 1 Reply Last reply
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                • G gogoer

                  @sierdzio said in Installation QT 5.11 on Raspberry Pi 3:

                  Use linux-g++ mkspecs instead of the Raspberry Pi one when you compile natively.

                  what i need to do?

                  i deleted folders, except your list.
                  now i use config string:

                  ../qt-everywhere-src-5.11.2/configure -v -opengl es2 -eglfs -no-gtk -device linux-rasp-pi-g++ \
                  -opensource -confirm-license -reduce-exports \
                  -force-pkg-config -nomake examples -no-compile-examples -release \
                  -qt-pcre -ssl -evdev -system-freetype -fontconfig -glib -prefix /opt/qt5
                  

                  but i have error:

                  Cannot compile minimal program. The toolchain or QMakeSpec is broken.
                  
                  sierdzioS Offline
                  sierdzioS Offline
                  sierdzio
                  Moderators
                  wrote on last edited by
                  #14

                  @gogoer said in Installation QT 5.11 on Raspberry Pi 3:

                  -device linux-rasp-pi-g++

                  Remove that, it should be enough.

                  If not, you can specify the mkspecs using this flag:

                  configure -platform linux-g++
                  

                  (Z(:^

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                  • G Offline
                    G Offline
                    gogoer
                    wrote on last edited by
                    #15

                    Thank you!
                    configuration is successfull.
                    i start compilation by

                    make -j 4
                    

                    and it compiles about an hour, then gives error:

                    make[3]: Leaving directory '/home/pi/otp/qt5/build/qtbase/src/testlib'
                    make[2]: Leaving directory '/home/pi/otp/qt5/build/qtbase/src'
                    Makefile:48: recipe for target 'sub-src-make_first' failed
                    make[1]: *** [sub-src-make_first] Error 2
                    make[1]: Leaving directory '/home/pi/otp/qt5/build/qtbase'
                    Makefile:52: recipe for target 'module-qtbase-make_first' failed
                    make: *** [module-qtbase-make_first] Error 2
                    

                    what i can do to solve this?

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                    • sierdzioS Offline
                      sierdzioS Offline
                      sierdzio
                      Moderators
                      wrote on last edited by
                      #16

                      That output does not give details about any errors. Run make (without -j) and / or look for real error in the output (something coming from either linker or the compiler).

                      (Z(:^

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                      • G Offline
                        G Offline
                        gogoer
                        wrote on last edited by
                        #17

                        it gives

                        g++: internal compiler error: Segmentation fault (program cc1plus) 
                        Please submit a full bug report,
                        with preprocessed source if appropriate.
                        See <file:///usr/share/doc/gcc-4.9/README.Bugs> for instructions.
                        

                        and after gives error i write upper.

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                        • sierdzioS Offline
                          sierdzioS Offline
                          sierdzio
                          Moderators
                          wrote on last edited by
                          #18

                          Whoa, that I have not seen before. Perhaps try with some older Qt release, maybe it won't trigger the compiler error. Also, disable tests as it seems to happen in test lib (-nomake tests -nomake examples).

                          (Z(:^

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                          • sierdzioS Offline
                            sierdzioS Offline
                            sierdzio
                            Moderators
                            wrote on last edited by
                            #19

                            Also, as @sneubert suggests, cross compilation will allow you to build much, much faster.

                            (Z(:^

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                            • mranger90M Offline
                              mranger90M Offline
                              mranger90
                              wrote on last edited by mranger90
                              #20

                              @gogoer said in Installation QT 5.11 on Raspberry Pi 3:

                              g++: internal compiler error: Segmentation fault (program cc1plus)

                              That might be an out of memory error. I used to see that when I tried to build Qt in a VM that was not given enough memory.

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                              • G Offline
                                G Offline
                                gogoer
                                wrote on last edited by
                                #21

                                @sierdzio said in Installation QT 5.11 on Raspberry Pi 3:

                                Also, as @sneubert suggests, cross compilation will allow you to build much, much faster.

                                maybe you can give link to manual, how crosscompile QT from windows? i have not linux machine now.
                                i found only manuals to crosscompile from linux.

                                sierdzioS 1 Reply Last reply
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                                • G gogoer

                                  @sierdzio said in Installation QT 5.11 on Raspberry Pi 3:

                                  Also, as @sneubert suggests, cross compilation will allow you to build much, much faster.

                                  maybe you can give link to manual, how crosscompile QT from windows? i have not linux machine now.
                                  i found only manuals to crosscompile from linux.

                                  sierdzioS Offline
                                  sierdzioS Offline
                                  sierdzio
                                  Moderators
                                  wrote on last edited by
                                  #22

                                  @gogoer said in Installation QT 5.11 on Raspberry Pi 3:

                                  maybe you can give link to manual, how crosscompile QT from windows?

                                  You like making things harder for yourself, right? ;-) There is this guide but it's known to work for a very limited range of Qt versions only.

                                  A much better option is to set up some Linux OS (in a virtual machine or as dual boot on your PC) and cross compile via Linux. It's really much easier to do (which does not mean it is easy...). Installing a Linux distro like Ubuntu takes 20 minutes.

                                  (Z(:^

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                                  • G Offline
                                    G Offline
                                    gogoer
                                    wrote on last edited by
                                    #23

                                    @sierdzio said in Installation QT 5.11 on Raspberry Pi 3:

                                    A much better option is to set up some Linux OS (in a virtual machine or as dual boot on your PC) and cross compile via Linux. It's really much easier to do (which does not mean it is easy...). Installing a Linux distro like Ubuntu takes 20 minutes.

                                    ok, i'll make so))) if have problems (99%) i'll ask here or create new topic?

                                    A 1 Reply Last reply
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                                    • sierdzioS Offline
                                      sierdzioS Offline
                                      sierdzio
                                      Moderators
                                      wrote on last edited by
                                      #24

                                      As you prefer, I don't mind.

                                      (Z(:^

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                                      0
                                      • G Offline
                                        G Offline
                                        gogoer
                                        wrote on last edited by
                                        #25

                                        I installed Ubuntu 18.04 in VirtualBox and now trying to install QT, following this:
                                        http://doc.qt.io/QtForDeviceCreation/qtee-preparing-hardware-rasberrypi.html
                                        I downloaded online installer, but i cant find QT for Device Creation. Only QT 5.11.2 and modules.
                                        Can I install all i need via online installer?

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                                        0
                                        • G Offline
                                          G Offline
                                          gogoer
                                          wrote on last edited by
                                          #26

                                          i compile QT in Ubuntu and have error:

                                          arm-linux-gnueabihf-g++ -mfloat-abi=hard --sysroot=/opt/qt5pi/sysroot -Wl,-O1 -Wl,-rpath-link,/opt/qt5pi/sysroot/opt/vc/lib -Wl,-rpath-link,/opt/qt5pi/sysroot/usr/lib/arm-linux-gnueabihf -Wl,-rpath-link,/opt/qt5pi/sysroot/lib/arm-linux-gnueabihf -o verifyspec verifyspec.o
                                          /opt/qt5pi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/../lib/gcc/arm-linux-gnueabihf/4.8.3/../../../../arm-linux-gnueabihf/bin/ld: cannot find crt1.o: Нет такого файла или каталога
                                          /opt/qt5pi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/../lib/gcc/arm-linux-gnueabihf/4.8.3/../../../../arm-linux-gnueabihf/bin/ld: cannot find crti.o: Нет такого файла или каталога
                                          /opt/qt5pi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/../lib/gcc/arm-linux-gnueabihf/4.8.3/../../../../arm-linux-gnueabihf/bin/ld: cannot find -lm

                                          what can i do?

                                          A 1 Reply Last reply
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