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How do i use poppler lib in Qt quick application.

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  • NIvil WilsonN NIvil Wilson

    @jsulm
    after building poppler for android it shows the same errror
    skipping incompatible /usr/local/lib//libpoppler-qt5.so when searching for -lpoppler-qt5.

    jsulmJ Offline
    jsulmJ Offline
    jsulm
    Lifetime Qt Champion
    wrote on last edited by
    #11

    @NIvil-Wilson said in How do i use poppler lib in Qt quick application.:

    skipping incompatible /usr/local/lib//libpoppler-qt5.so when searching for -lpoppler-qt5.

    This error clearly states that /usr/local/lib//libpoppler-qt5.so is not compatible with what you are building.
    Do

    file /usr/local/lib//libpoppler-qt5.so
    

    and post its output here.

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

    NIvil WilsonN 1 Reply Last reply
    0
    • jsulmJ jsulm

      @NIvil-Wilson said in How do i use poppler lib in Qt quick application.:

      skipping incompatible /usr/local/lib//libpoppler-qt5.so when searching for -lpoppler-qt5.

      This error clearly states that /usr/local/lib//libpoppler-qt5.so is not compatible with what you are building.
      Do

      file /usr/local/lib//libpoppler-qt5.so
      

      and post its output here.

      NIvil WilsonN Offline
      NIvil WilsonN Offline
      NIvil Wilson
      wrote on last edited by
      #12

      @jsulm said in How do i use poppler lib in Qt quick application.:

      file /usr/local/lib//libpoppler-qt5.so

      /usr/local/lib//libpoppler-qt5.so: symbolic link to libpoppler-qt5.so.1

      jsulmJ 1 Reply Last reply
      0
      • NIvil WilsonN NIvil Wilson

        @jsulm said in How do i use poppler lib in Qt quick application.:

        file /usr/local/lib//libpoppler-qt5.so

        /usr/local/lib//libpoppler-qt5.so: symbolic link to libpoppler-qt5.so.1

        jsulmJ Offline
        jsulmJ Offline
        jsulm
        Lifetime Qt Champion
        wrote on last edited by
        #13

        @NIvil-Wilson Then do

        file /usr/local/lib//libpoppler-qt5.so.1
        

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

        NIvil WilsonN 1 Reply Last reply
        0
        • jsulmJ jsulm

          @NIvil-Wilson Then do

          file /usr/local/lib//libpoppler-qt5.so.1
          
          NIvil WilsonN Offline
          NIvil WilsonN Offline
          NIvil Wilson
          wrote on last edited by
          #14

          @jsulm
          sir,
          the result for the command file /usr/local/lib//libpoppler-qt5.so.1 is
          /usr/local/lib//libpoppler-qt5.so.1: symbolic link to libpoppler-qt5.so.1.27.0

          SGaistS 1 Reply Last reply
          0
          • SGaistS SGaist

            Hi,

            I would avoid putting a library like that built for a different architecture/OS in such a generic path. You should store in an explicit dedicated folder.

            NIvil WilsonN Offline
            NIvil WilsonN Offline
            NIvil Wilson
            wrote on last edited by
            #15

            @SGaist
            sir, i tried that too but the same problem occurs

            1 Reply Last reply
            0
            • NIvil WilsonN NIvil Wilson

              @jsulm
              sir,
              the result for the command file /usr/local/lib//libpoppler-qt5.so.1 is
              /usr/local/lib//libpoppler-qt5.so.1: symbolic link to libpoppler-qt5.so.1.27.0

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

              @NIvil-Wilson said in How do i use poppler lib in Qt quick application.:

              @jsulm
              sir,
              the result for the command file /usr/local/lib//libpoppler-qt5.so.1 is
              /usr/local/lib//libpoppler-qt5.so.1: symbolic link to libpoppler-qt5.so.1.27.0

              Check that file then.

              Did you ensure that cmake is finding your cross-compiled version and not the one from your system ?

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

              NIvil WilsonN 1 Reply Last reply
              0
              • SGaistS SGaist

                @NIvil-Wilson said in How do i use poppler lib in Qt quick application.:

                @jsulm
                sir,
                the result for the command file /usr/local/lib//libpoppler-qt5.so.1 is
                /usr/local/lib//libpoppler-qt5.so.1: symbolic link to libpoppler-qt5.so.1.27.0

                Check that file then.

                Did you ensure that cmake is finding your cross-compiled version and not the one from your system ?

                NIvil WilsonN Offline
                NIvil WilsonN Offline
                NIvil Wilson
                wrote on last edited by
                #17

                @SGaist
                sir,
                yes i ensured that the cmake is finding cross-compiled version and not the one from the system .
                i stored the cross-compiled version in an explicit dedicated folder and the same message appears.
                please help

                1 Reply Last reply
                0
                • SGaistS Offline
                  SGaistS Offline
                  SGaist
                  Lifetime Qt Champion
                  wrote on last edited by
                  #18

                  Did you check the architecture of your cross-compiled library ?

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

                  NIvil WilsonN 1 Reply Last reply
                  0
                  • SGaistS SGaist

                    Did you check the architecture of your cross-compiled library ?

                    NIvil WilsonN Offline
                    NIvil WilsonN Offline
                    NIvil Wilson
                    wrote on last edited by
                    #19

                    @SGaist
                    sir ,
                    the architecture of cross-compiled library is given below.

                    readelf -h libpoppler-qt5.so.1.27.0
                    ELF Header:
                    Magic: 7f 45 4c 46 02 01 01 00 00 00 00 00 00 00 00 00
                    Class: ELF64
                    Data: 2's complement, little endian
                    Version: 1 (current)
                    OS/ABI: UNIX - System V
                    ABI Version: 0
                    Type: DYN (Shared object file)
                    Machine: Advanced Micro Devices X86-64
                    Version: 0x1
                    Entry point address: 0x334f0
                    Start of program headers: 64 (bytes into file)
                    Start of section headers: 14323992 (bytes into file)
                    Flags: 0x0
                    Size of this header: 64 (bytes)
                    Size of program headers: 56 (bytes)
                    Number of program headers: 11
                    Size of section headers: 64 (bytes)
                    Number of section headers: 39
                    Section header string table index: 38

                    1 Reply Last reply
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                    • SGaistS Offline
                      SGaistS Offline
                      SGaist
                      Lifetime Qt Champion
                      wrote on last edited by
                      #20

                      @NIvil-Wilson said in How do i use poppler lib in Qt quick application.:

                      Machine: Advanced Micro Devices X86-64

                      Is your device running on a x86_64 machine ?

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

                      NIvil WilsonN 1 Reply Last reply
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                      • SGaistS SGaist

                        @NIvil-Wilson said in How do i use poppler lib in Qt quick application.:

                        Machine: Advanced Micro Devices X86-64

                        Is your device running on a x86_64 machine ?

                        NIvil WilsonN Offline
                        NIvil WilsonN Offline
                        NIvil Wilson
                        wrote on last edited by NIvil Wilson
                        #21

                        @SGaist said in How do i use poppler lib in Qt quick application.:

                        x86_64

                        uname -a
                        Linux nivilwilsonp-desktop 5.8.0-48-generic #54~20.04.1-Ubuntu SMP Sat Mar 20 13:40:25 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

                        1 Reply Last reply
                        0
                        • SGaistS Offline
                          SGaistS Offline
                          SGaist
                          Lifetime Qt Champion
                          wrote on last edited by
                          #22

                          Your desktop machine is.

                          I meant the target that runs Android. In any case, if it's ARM, libpoppler was not cross-compiled.

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

                          NIvil WilsonN 1 Reply Last reply
                          1
                          • SGaistS SGaist

                            Your desktop machine is.

                            I meant the target that runs Android. In any case, if it's ARM, libpoppler was not cross-compiled.

                            NIvil WilsonN Offline
                            NIvil WilsonN Offline
                            NIvil Wilson
                            wrote on last edited by
                            #23

                            @SGaist
                            sir,
                            the target device is ARM.could you give me instructions to cross compile libpoppler for ARM.

                            1 Reply Last reply
                            0
                            • SGaistS Offline
                              SGaistS Offline
                              SGaist
                              Lifetime Qt Champion
                              wrote on last edited by
                              #24

                              What did you do to build poppler until now ?

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

                              NIvil WilsonN 1 Reply Last reply
                              0
                              • SGaistS SGaist

                                What did you do to build poppler until now ?

                                NIvil WilsonN Offline
                                NIvil WilsonN Offline
                                NIvil Wilson
                                wrote on last edited by
                                #25

                                @SGaist
                                sir,
                                i used the settings given below to cross compile poppler library

                                if(NOT DEFINED CMAKE_CROSSCOMPILING)
                                set(CMAKE_CROSSCOMPILING "TRUE")
                                endif()

                                set(CMAKE_SYSTEM_NAME Android)
                                set(CMAKE_SYSTEM_VERSION 21) # API level
                                set(CMAKE_ANDROID_ARCH_ABI arm64-v8a)
                                set(CMAKE_ANDROID_NDK /home/nivilwilsonp/Android/Sdk/ndk/21.3.6528147)
                                set(CMAKE_ANDROID_STL_TYPE c++_shared)

                                1 Reply Last reply
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                                • SGaistS Offline
                                  SGaistS Offline
                                  SGaist
                                  Lifetime Qt Champion
                                  wrote on last edited by
                                  #26

                                  You might want to check here for how they build it for Androïd.

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

                                  NIvil WilsonN 1 Reply Last reply
                                  1
                                  • SGaistS SGaist

                                    You might want to check here for how they build it for Androïd.

                                    NIvil WilsonN Offline
                                    NIvil WilsonN Offline
                                    NIvil Wilson
                                    wrote on last edited by NIvil Wilson
                                    #27

                                    @SGaist
                                    sir, i tried to compile poppler for android arm64-v8a but it always compiled to "x86_64".

                                    1 Reply Last reply
                                    0
                                    • SGaistS Offline
                                      SGaistS Offline
                                      SGaist
                                      Lifetime Qt Champion
                                      wrote on last edited by
                                      #28

                                      Did you follow the example I linked ?

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

                                      NIvil WilsonN 1 Reply Last reply
                                      0
                                      • SGaistS SGaist

                                        Did you follow the example I linked ?

                                        NIvil WilsonN Offline
                                        NIvil WilsonN Offline
                                        NIvil Wilson
                                        wrote on last edited by
                                        #29

                                        @SGaist
                                        sir, i tried it many times .i changed the architecture and tried many times but it only compile to x86_64 architecture only.I think this is related to configuration mistake that i made cmake compilation process. sorry for my bad english .google translate help me very much these days.

                                        1 Reply Last reply
                                        0
                                        • SGaistS Offline
                                          SGaistS Offline
                                          SGaist
                                          Lifetime Qt Champion
                                          wrote on last edited by
                                          #30

                                          What did you do exactly for your latest try ?

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

                                          NIvil WilsonN 1 Reply Last reply
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