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Having trouble building Qt 6 from source

Scheduled Pinned Locked Moved Unsolved Qt 6
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  • SGaistS SGaist

    Hi and welcome to devnet,

    From the look of ./configure you are doing a build within the first level of the sources. Don't.
    Do an out of source build.
    It's shown in the Linux building guide.

    S Offline
    S Offline
    SkeletonHorse
    wrote on last edited by
    #3

    @SGaist do you mean as in like doing it in the file directory itself? as i did cd in the directed file directory before i did configure

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    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #4

      If you are meaning calling configure from the root of the Qt sources, then yes, that is wrong.
      As already written, do an out of source build just as explained in the documentation.

      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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      • S Offline
        S Offline
        SkeletonHorse
        wrote on last edited by
        #5

        I don't understand i did cd in dev/qt-build before doing configure like the documentation said i dont know how id be doing it wrong

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        • SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on last edited by
          #6

          Can you please list the exact steps you used ?
          Also, did you re-start from a clean set of sources ?

          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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          • S Offline
            S Offline
            SkeletonHorse
            wrote on last edited by
            #7

            I followed the exact documentation you sent me
            i extracted the source code
            did cd dev/qtbuild
            did configure
            did the make parallel command
            and then got the errors i listed

            SGaistS 1 Reply Last reply
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            • S Offline
              S Offline
              SkeletonHorse
              wrote on last edited by
              #8

              also is there any way to edit a post after an hour i accidentally left my system name when writing this forum post before going back to bed and it wont let me change it and im unsure if i want to leave that data just out there for random people to see on the internet and such

              SGaistS 1 Reply Last reply
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              • S SkeletonHorse

                also is there any way to edit a post after an hour i accidentally left my system name when writing this forum post before going back to bed and it wont let me change it and im unsure if i want to leave that data just out there for random people to see on the internet and such

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

                @SkeletonHorse said in Having trouble building Qt 6 from source:

                also is there any way to edit a post after an hour i accidentally left my system name when writing this forum post before going back to bed and it wont let me change it and im unsure if i want to leave that data just out there for random people to see on the internet and such

                Fixed

                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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                • S SkeletonHorse

                  I followed the exact documentation you sent me
                  i extracted the source code
                  did cd dev/qtbuild
                  did configure
                  did the make parallel command
                  and then got the errors i listed

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

                  @SkeletonHorse said in Having trouble building Qt 6 from source:

                  I followed the exact documentation you sent me
                  i extracted the source code
                  did cd dev/qtbuild
                  did configure
                  did the make parallel command
                  and then got the errors i listed

                  Can you share the summary once configure has run ?

                  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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                  • SGaistS SGaist

                    @SkeletonHorse said in Having trouble building Qt 6 from source:

                    I followed the exact documentation you sent me
                    i extracted the source code
                    did cd dev/qtbuild
                    did configure
                    did the make parallel command
                    and then got the errors i listed

                    Can you share the summary once configure has run ?

                    S Offline
                    S Offline
                    SkeletonHorse
                    wrote on last edited by
                    #11

                    @SGaist as in the config.summary file written?

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                    • SGaistS Offline
                      SGaistS Offline
                      SGaist
                      Lifetime Qt Champion
                      wrote on last edited by
                      #12

                      That one yes

                      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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                      • S Offline
                        S Offline
                        SkeletonHorse
                        wrote on last edited by
                        #13

                        The summary file is pretty long, do I send it with the upload file option or are you just looking for specific parts of the file that I can relay to you?

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                        • SGaistS Offline
                          SGaistS Offline
                          SGaist
                          Lifetime Qt Champion
                          wrote on last edited by
                          #14

                          Currently I don't have any specifics in mind.

                          I just realized something, the Moc message is correct, QCanFrameProcessor is indeed not a QObject based class.

                          Can you build Qt with parallel at 1 ?

                          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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                          • SGaistS SGaist

                            Currently I don't have any specifics in mind.

                            I just realized something, the Moc message is correct, QCanFrameProcessor is indeed not a QObject based class.

                            Can you build Qt with parallel at 1 ?

                            S Offline
                            S Offline
                            SkeletonHorse
                            wrote on last edited by
                            #15

                            @SGaist I did build Qt with parrallel, though I dont undesrstand what you mean by building it "at 1" forgive me for my need for specifics, I just dont know much about qt and I'm building it for specific capabilites only available to such version.

                            Anyways could you elaborate on building it "at 1" ?

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                            • SGaistS Offline
                              SGaistS Offline
                              SGaist
                              Lifetime Qt Champion
                              wrote on last edited by
                              #16

                              Either remove parallel from the parameters or set its value to 1.

                              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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                              • S Offline
                                S Offline
                                SkeletonHorse
                                wrote on last edited by
                                #17

                                How do I set the value to 1?

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                                • SGaistS Offline
                                  SGaistS Offline
                                  SGaist
                                  Lifetime Qt Champion
                                  wrote on last edited by
                                  #18

                                  --parallel 1

                                  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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                                  • S Offline
                                    S Offline
                                    SkeletonHorse
                                    wrote on last edited by
                                    #19

                                    I have set it's value to one but I seem to have encountered the same build error.

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                                    • S Offline
                                      S Offline
                                      SkeletonHorse
                                      wrote on last edited by
                                      #20

                                      if it means anything I did get this warning
                                      while looking at the configure summary file:
                                      "Required Python dependencies NOT found: spdx_tools.spdx.clitools.pyspdxtools"
                                      While also getting this warning during the build process:
                                      "WARNING: Support for linking against a C++ standard library other
                                      than the one in-tree (buildtools/third_party/libc++) is deprecated
                                      and support for this will end. We plan to remove this option in
                                      M138."
                                      Do you think any of these might be the source of my problem?

                                      S 1 Reply Last reply
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                                      • GrecKoG Offline
                                        GrecKoG Offline
                                        GrecKo
                                        Qt Champions 2018
                                        wrote on last edited by
                                        #21

                                        What errors do you encounter?

                                        Those seems to be warnings.

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                                        • GrecKoG GrecKo

                                          What errors do you encounter?

                                          Those seems to be warnings.

                                          S Offline
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                                          SkeletonHorse
                                          wrote on last edited by SkeletonHorse
                                          #22

                                          @GrecKo the errors are stated at the top of the post but for clarification I get
                                          these messages:

                                          AutoMoc: /home/<self>/Documents/<tmp>/<tmp>/qt-everywhere-src-6.10.2/qtserialbus/src/serialbus/qcanframeprocessor.h: note: No relevant classes found. No output generated.
                                          [12263/12791] Generating wayland-wayland-server-protocol.h
                                          %3Cstdin%3E:2307: element event: validity error : No declaration for attribute deprecated-since of element event

                                          WARNING: XML failed validation against built-in DTD

                                          during the build process

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