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Building/installing Qt-6.5.2 from source on ubuntu-22.04

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  • P prathyuch.1999

    @SGaist

    Hi,
    Thanks for your advice, i re-configured it after removing, now openssl is linking with 3.0.2 version but still showing warning that QtWebEngine won't be build....

    Screenshot from 2023-09-28 10-59-53.png

    I ignored and moved to next step, now i am getting error related to gn.

    Screenshot from 2023-09-28 13-00-37.png
    Screenshot from 2023-09-28 13-01-31.png

    How to remove this error ?

    jsulmJ Offline
    jsulmJ Offline
    jsulm
    Lifetime Qt Champion
    wrote on last edited by
    #6

    @prathyuch-1999 If you don't need QtWebEngine then you should disable it.
    And as @SGaist suggested: call configure in a clean build folder!

    https://forum.qt.io/topic/113070/qt-code-of-conduct

    P 1 Reply Last reply
    1
    • jsulmJ jsulm

      @prathyuch-1999 If you don't need QtWebEngine then you should disable it.
      And as @SGaist suggested: call configure in a clean build folder!

      P Offline
      P Offline
      prathyuch.1999
      wrote on last edited by
      #7

      @jsulm
      Hi...
      I want QtWebEngine, earlier error was related to SSL, that resolved now.
      Is this GN error related to QtWebEngine ?
      First how to resolved to this GN error, and why QtWebEngine is not building ?

      jsulmJ 1 Reply Last reply
      0
      • P prathyuch.1999

        @jsulm
        Hi...
        I want QtWebEngine, earlier error was related to SSL, that resolved now.
        Is this GN error related to QtWebEngine ?
        First how to resolved to this GN error, and why QtWebEngine is not building ?

        jsulmJ Offline
        jsulmJ Offline
        jsulm
        Lifetime Qt Champion
        wrote on last edited by
        #8

        @prathyuch-1999 As already asked/suggested twice: did you run configure from a clean build folder?
        The warning you posted clearly states that QtWebengine will not be built because not all needed libraries were found. @SGaist told you to check configure log to see which libraries are missing: did you do that? You keep asking for what to do ignoring what was already suggested.

        https://forum.qt.io/topic/113070/qt-code-of-conduct

        P 1 Reply Last reply
        0
        • jsulmJ jsulm

          @prathyuch-1999 As already asked/suggested twice: did you run configure from a clean build folder?
          The warning you posted clearly states that QtWebengine will not be built because not all needed libraries were found. @SGaist told you to check configure log to see which libraries are missing: did you do that? You keep asking for what to do ignoring what was already suggested.

          P Offline
          P Offline
          prathyuch.1999
          wrote on last edited by
          #9

          @jsulm
          i already run configure from a clean build folder as suggested by @SGaist
          Earlier one issue was with SSL and another was QtWebEngine, after doing this now SSL issue resolved, but still warning of QtWebEngine.

          The warning you posted clearly states that QtWebengine will not be built because not all needed libraries were found.
          Dear i know this.
          If i am wrong then any one tell me the name and path of configure test logs file @SGaist
          Is this GN error related to QtWebEngine ?
          First how to resolved to this GN error, and why QtWebEngine is not building ?

          SGaistS 1 Reply Last reply
          0
          • P prathyuch.1999

            @jsulm
            i already run configure from a clean build folder as suggested by @SGaist
            Earlier one issue was with SSL and another was QtWebEngine, after doing this now SSL issue resolved, but still warning of QtWebEngine.

            The warning you posted clearly states that QtWebengine will not be built because not all needed libraries were found.
            Dear i know this.
            If i am wrong then any one tell me the name and path of configure test logs file @SGaist
            Is this GN error related to QtWebEngine ?
            First how to resolved to this GN error, and why QtWebEngine is not building ?

            SGaistS Offline
            SGaistS Offline
            SGaist
            Lifetime Qt Champion
            wrote on last edited by
            #10

            Which warning do you have now when starting from a clean state ?

            Interested in AI ? www.idiap.ch
            Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

            P 1 Reply Last reply
            0
            • SGaistS SGaist

              Which warning do you have now when starting from a clean state ?

              P Offline
              P Offline
              prathyuch.1999
              wrote on last edited by
              #11

              @SGaist
              I am having below warning now....

              WARNING: No backend for low level audio found.
              WARNING: QtWebEngine won't be built. Could not find all necessary libraries for qpa-xcb support. X11:YES LIBDRM:YES XCOMPOSITE:YES XCURSOR:YES XRANDR:YES XI:YES XPROTO:YES XSHMFENCE:NO XTST:YES

              Screenshot from 2023-10-06 10-22-49.png

              Christian EhrlicherC 1 Reply Last reply
              0
              • P prathyuch.1999

                @SGaist
                I am having below warning now....

                WARNING: No backend for low level audio found.
                WARNING: QtWebEngine won't be built. Could not find all necessary libraries for qpa-xcb support. X11:YES LIBDRM:YES XCOMPOSITE:YES XCURSOR:YES XRANDR:YES XI:YES XPROTO:YES XSHMFENCE:NO XTST:YES

                Screenshot from 2023-10-06 10-22-49.png

                Christian EhrlicherC Online
                Christian EhrlicherC Online
                Christian Ehrlicher
                Lifetime Qt Champion
                wrote on last edited by
                #12

                @prathyuch-1999 said in Building/installing Qt-6.5.2 from source on ubuntu-22.04:

                XSHMFENCE:NO

                Isn't this obvoius enough? Install the appropriate develpoment package if you need QtWebEngine

                Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
                Visit the Qt Academy at https://academy.qt.io/catalog

                P 1 Reply Last reply
                1
                • Christian EhrlicherC Christian Ehrlicher

                  @prathyuch-1999 said in Building/installing Qt-6.5.2 from source on ubuntu-22.04:

                  XSHMFENCE:NO

                  Isn't this obvoius enough? Install the appropriate develpoment package if you need QtWebEngine

                  P Offline
                  P Offline
                  prathyuch.1999
                  wrote on last edited by
                  #13

                  @Christian-Ehrlicher
                  Thanks @Christian-Ehrlicher, i installed that package, now QtWebEngine warning is not there.

                  Christian EhrlicherC 1 Reply Last reply
                  0
                  • P prathyuch.1999

                    @Christian-Ehrlicher
                    Thanks @Christian-Ehrlicher, i installed that package, now QtWebEngine warning is not there.

                    Christian EhrlicherC Online
                    Christian EhrlicherC Online
                    Christian Ehrlicher
                    Lifetime Qt Champion
                    wrote on last edited by
                    #14

                    @prathyuch-1999 said in Building/installing Qt-6.5.2 from source on ubuntu-22.04:

                    i installed that package, now QtWebEngine warning is not there.

                    What does 'is not there' means? Did configure warn about QtWebEngine missing dependencies? If not then it will also be built.

                    Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
                    Visit the Qt Academy at https://academy.qt.io/catalog

                    P 1 Reply Last reply
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                    • Christian EhrlicherC Christian Ehrlicher

                      @prathyuch-1999 said in Building/installing Qt-6.5.2 from source on ubuntu-22.04:

                      i installed that package, now QtWebEngine warning is not there.

                      What does 'is not there' means? Did configure warn about QtWebEngine missing dependencies? If not then it will also be built.

                      P Offline
                      P Offline
                      prathyuch.1999
                      wrote on last edited by
                      #15

                      @Christian-Ehrlicher
                      Yes, now there is now warning of QtWebEngine at configure step.
                      Screenshot from 2023-10-06 11-42-58.png
                      But after successfully configured now i am getting following error related to gn, while doing next step (cmake --build . --parallel) screenshot of error is below :
                      Screenshot from 2023-10-06 12-56-16.png
                      Error Screenshot-2
                      Screenshot from 2023-10-06 12-57-41.png
                      Error Screenshot-3
                      Screenshot from 2023-10-06 12-58-20.png
                      Please suggest me what is the problem ?
                      How to remove this gn error ?

                      Christian EhrlicherC 1 Reply Last reply
                      0
                      • P prathyuch.1999

                        @Christian-Ehrlicher
                        Yes, now there is now warning of QtWebEngine at configure step.
                        Screenshot from 2023-10-06 11-42-58.png
                        But after successfully configured now i am getting following error related to gn, while doing next step (cmake --build . --parallel) screenshot of error is below :
                        Screenshot from 2023-10-06 12-56-16.png
                        Error Screenshot-2
                        Screenshot from 2023-10-06 12-57-41.png
                        Error Screenshot-3
                        Screenshot from 2023-10-06 12-58-20.png
                        Please suggest me what is the problem ?
                        How to remove this gn error ?

                        Christian EhrlicherC Online
                        Christian EhrlicherC Online
                        Christian Ehrlicher
                        Lifetime Qt Champion
                        wrote on last edited by
                        #16

                        As you can see it's failing when looking for cups-config.

                        Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
                        Visit the Qt Academy at https://academy.qt.io/catalog

                        P 1 Reply Last reply
                        0
                        • Christian EhrlicherC Christian Ehrlicher

                          As you can see it's failing when looking for cups-config.

                          P Offline
                          P Offline
                          prathyuch.1999
                          wrote on last edited by
                          #17

                          @Christian-Ehrlicher
                          Thanks for your advice, i did same and now there is no warning of QtWebEngine at configure step.
                          But it was getting failed in next step with below error :
                          "c++: fatal error: Killed signal terminated program cc1plus"
                          I checked with dmesg, and found some out of memory things.
                          Even though i have 16GB of RAM, then I increased my swap size from 2 GB to 8GB.
                          Again did cmake....
                          But now, after some time terminal is getting crashed without any warning or error.
                          Screenshot from 2023-10-09 16-24-59.png
                          I checked with top command and found that some time cpu utilization is getting 85% to 100% by cc1plus and kswapd0.

                          How to overcome this error ?

                          dmesg output:
                          Screenshot from 2023-10-09 16-41-45.png

                          JonBJ 1 Reply Last reply
                          0
                          • P prathyuch.1999

                            @Christian-Ehrlicher
                            Thanks for your advice, i did same and now there is no warning of QtWebEngine at configure step.
                            But it was getting failed in next step with below error :
                            "c++: fatal error: Killed signal terminated program cc1plus"
                            I checked with dmesg, and found some out of memory things.
                            Even though i have 16GB of RAM, then I increased my swap size from 2 GB to 8GB.
                            Again did cmake....
                            But now, after some time terminal is getting crashed without any warning or error.
                            Screenshot from 2023-10-09 16-24-59.png
                            I checked with top command and found that some time cpu utilization is getting 85% to 100% by cc1plus and kswapd0.

                            How to overcome this error ?

                            dmesg output:
                            Screenshot from 2023-10-09 16-41-45.png

                            JonBJ Offline
                            JonBJ Offline
                            JonB
                            wrote on last edited by
                            #18

                            @prathyuch-1999
                            I think you have to reduce the number of parallel builds/processes going on. There was a recent (last month?) thread to this effect, you might try to find it while awaiting a definitive answer.

                            P 1 Reply Last reply
                            0
                            • JonBJ JonB

                              @prathyuch-1999
                              I think you have to reduce the number of parallel builds/processes going on. There was a recent (last month?) thread to this effect, you might try to find it while awaiting a definitive answer.

                              P Offline
                              P Offline
                              prathyuch.1999
                              wrote on last edited by
                              #19

                              @JonB said in Building/installing Qt-6.5.2 from source on ubuntu-22.04:

                              There was a recent (last month?) thread to this effect,

                              Please share the link of above thread.

                              JonBJ jsulmJ 2 Replies Last reply
                              0
                              • P prathyuch.1999

                                @JonB said in Building/installing Qt-6.5.2 from source on ubuntu-22.04:

                                There was a recent (last month?) thread to this effect,

                                Please share the link of above thread.

                                JonBJ Offline
                                JonBJ Offline
                                JonB
                                wrote on last edited by
                                #20

                                @prathyuch-1999 If I could I would. Perhaps you'd like to search instead of me.

                                1 Reply Last reply
                                0
                                • P prathyuch.1999

                                  @JonB said in Building/installing Qt-6.5.2 from source on ubuntu-22.04:

                                  There was a recent (last month?) thread to this effect,

                                  Please share the link of above thread.

                                  jsulmJ Offline
                                  jsulmJ Offline
                                  jsulm
                                  Lifetime Qt Champion
                                  wrote on last edited by
                                  #21

                                  @prathyuch-1999 Simply add -j NUMBER_OF_BUILD_PROCESSES to your cmake --build call...

                                  https://forum.qt.io/topic/113070/qt-code-of-conduct

                                  P 1 Reply Last reply
                                  0
                                  • jsulmJ jsulm

                                    @prathyuch-1999 Simply add -j NUMBER_OF_BUILD_PROCESSES to your cmake --build call...

                                    P Offline
                                    P Offline
                                    prathyuch.1999
                                    wrote on last edited by
                                    #22

                                    @jsulm
                                    I already did this also, i have 12 core processor so i added -j12 in cmake, but no solution. Same problem exists, terminal getting crashed.

                                    sierdzioS 1 Reply Last reply
                                    0
                                    • P prathyuch.1999

                                      @jsulm
                                      I already did this also, i have 12 core processor so i added -j12 in cmake, but no solution. Same problem exists, terminal getting crashed.

                                      sierdzioS Offline
                                      sierdzioS Offline
                                      sierdzio
                                      Moderators
                                      wrote on last edited by
                                      #23

                                      @prathyuch-1999 said in Building/installing Qt-6.5.2 from source on ubuntu-22.04:

                                      @jsulm
                                      I already did this also, i have 12 core processor so i added -j12 in cmake, but no solution. Same problem exists, terminal getting crashed.

                                      That is not reducing the number of threads ;-) Use -j1 or -j2, this will reduce RAM usage considerably.

                                      (Z(:^

                                      P 1 Reply Last reply
                                      1
                                      • sierdzioS sierdzio

                                        @prathyuch-1999 said in Building/installing Qt-6.5.2 from source on ubuntu-22.04:

                                        @jsulm
                                        I already did this also, i have 12 core processor so i added -j12 in cmake, but no solution. Same problem exists, terminal getting crashed.

                                        That is not reducing the number of threads ;-) Use -j1 or -j2, this will reduce RAM usage considerably.

                                        P Offline
                                        P Offline
                                        prathyuch.1999
                                        wrote on last edited by
                                        #24

                                        @sierdzio
                                        It didn't worked, same problem.... system is getting stucked.

                                        JoeCFDJ 1 Reply Last reply
                                        0
                                        • P prathyuch.1999

                                          @sierdzio
                                          It didn't worked, same problem.... system is getting stucked.

                                          JoeCFDJ Offline
                                          JoeCFDJ Offline
                                          JoeCFD
                                          wrote on last edited by JoeCFD
                                          #25

                                          @prathyuch-1999 are you building Qt under root? If yes, do not do it. You should build it under your user name and install it somewhere under root.

                                          P 1 Reply Last reply
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