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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
    #8

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

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

    I'm sure this is not poppler built for Android.
    You have to provide proper path to the Android version using LIBS.

    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.:

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

      I'm sure this is not poppler built for Android.
      You have to provide proper path to the Android version using LIBS.

      NIvil WilsonN Offline
      NIvil WilsonN Offline
      NIvil Wilson
      wrote on last edited by
      #9

      @jsulm
      sir,
      this is my cmak_install file.could you please check it .

      # Install script for directory: /home/nivilwilsonp/Pictures/poppler-21.03.0
      
      # Set the install prefix
      if(NOT DEFINED CMAKE_INSTALL_PREFIX)
        set(CMAKE_INSTALL_PREFIX "/usr/local")
      endif()
      string(REGEX REPLACE "/$" "" CMAKE_INSTALL_PREFIX "${CMAKE_INSTALL_PREFIX}")
      
      # Set the install configuration name.
      if(NOT DEFINED CMAKE_INSTALL_CONFIG_NAME)
        if(BUILD_TYPE)
          string(REGEX REPLACE "^[^A-Za-z0-9_]+" ""
                 CMAKE_INSTALL_CONFIG_NAME "${BUILD_TYPE}")
        else()
          set(CMAKE_INSTALL_CONFIG_NAME "RelWithDebInfo")
        endif()
        message(STATUS "Install configuration: \"${CMAKE_INSTALL_CONFIG_NAME}\"")
      endif()
      
      # Set the component getting installed.
      if(NOT CMAKE_INSTALL_COMPONENT)
        if(COMPONENT)
          message(STATUS "Install component: \"${COMPONENT}\"")
          set(CMAKE_INSTALL_COMPONENT "${COMPONENT}")
        else()
          set(CMAKE_INSTALL_COMPONENT)
        endif()
      endif()
      
      # Install shared libraries without execute permission?
      if(NOT DEFINED CMAKE_INSTALL_SO_NO_EXE)
        set(CMAKE_INSTALL_SO_NO_EXE "1")
      endif()
      
      # Is this installation the result of a crosscompile?
      if(NOT DEFINED CMAKE_CROSSCOMPILING)
        set(CMAKE_CROSSCOMPILING "TRUE")
        set(CMAKE_SYSTEM_NAME Android)
      set(CMAKE_SYSTEM_VERSION 24) # API level
      set(CMAKE_ANDROID_ARCH_ABI armeabi-v7a)
      set(CMAKE_ANDROID_NDK /home/nivilwilsonp/Android/Sdk/ndk/21.3.6528147)
      set(CMAKE_ANDROID_STL_TYPE gnustl_static)
      endif()
      
      if("x${CMAKE_INSTALL_COMPONENT}x" STREQUAL "xUnspecifiedx" OR NOT CMAKE_INSTALL_COMPONENT)
        foreach(file
            "$ENV{DESTDIR}${CMAKE_INSTALL_PREFIX}/lib/libpoppler.so.108.0.0"
            "$ENV{DESTDIR}${CMAKE_INSTALL_PREFIX}/lib/libpoppler.so.108"
            )
          if(EXISTS "${file}" AND
             NOT IS_SYMLINK "${file}")
            file(RPATH_CHECK
                 FILE "${file}"
                 RPATH "")
          endif()
        endforeach()
        file(INSTALL DESTINATION "${CMAKE_INSTALL_PREFIX}/lib" TYPE SHARED_LIBRARY FILES
          "/home/nivilwilsonp/Pictures/poppler-21.03.0/build/libpoppler.so.108.0.0"
          "/home/nivilwilsonp/Pictures/poppler-21.03.0/build/libpoppler.so.108"
          )
        foreach(file
            "$ENV{DESTDIR}${CMAKE_INSTALL_PREFIX}/lib/libpoppler.so.108.0.0"
            "$ENV{DESTDIR}${CMAKE_INSTALL_PREFIX}/lib/libpoppler.so.108"
            )
          if(EXISTS "${file}" AND
             NOT IS_SYMLINK "${file}")
            if(CMAKE_INSTALL_DO_STRIP)
              execute_process(COMMAND "/usr/bin/strip" "${file}")
            endif()
          endif()
        endforeach()
      endif()
      
      if("x${CMAKE_INSTALL_COMPONENT}x" STREQUAL "xUnspecifiedx" OR NOT CMAKE_INSTALL_COMPONENT)
        if(EXISTS "$ENV{DESTDIR}${CMAKE_INSTALL_PREFIX}/lib/libpoppler.so" AND
           NOT IS_SYMLINK "$ENV{DESTDIR}${CMAKE_INSTALL_PREFIX}/lib/libpoppler.so")
          file(RPATH_CHECK
               FILE "$ENV{DESTDIR}${CMAKE_INSTALL_PREFIX}/lib/libpoppler.so"
               RPATH "")
        endif()
        file(INSTALL DESTINATION "${CMAKE_INSTALL_PREFIX}/lib" TYPE SHARED_LIBRARY FILES "/home/nivilwilsonp/Pictures/poppler-21.03.0/build/libpoppler.so")
        if(EXISTS "$ENV{DESTDIR}${CMAKE_INSTALL_PREFIX}/lib/libpoppler.so" AND
           NOT IS_SYMLINK "$ENV{DESTDIR}${CMAKE_INSTALL_PREFIX}/lib/libpoppler.so")
          if(CMAKE_INSTALL_DO_STRIP)
            execute_process(COMMAND "/usr/bin/strip" "$ENV{DESTDIR}${CMAKE_INSTALL_PREFIX}/lib/libpoppler.so")
          endif()
        endif()
      endif()
      
      if("x${CMAKE_INSTALL_COMPONENT}x" STREQUAL "xUnspecifiedx" OR NOT CMAKE_INSTALL_COMPONENT)
        file(INSTALL DESTINATION "${CMAKE_INSTALL_PREFIX}/lib/pkgconfig" TYPE FILE FILES "/home/nivilwilsonp/Pictures/poppler-21.03.0/build/poppler.pc")
      endif()
      
      if("x${CMAKE_INSTALL_COMPONENT}x" STREQUAL "xUnspecifiedx" OR NOT CMAKE_INSTALL_COMPONENT)
        file(INSTALL DESTINATION "${CMAKE_INSTALL_PREFIX}/lib/pkgconfig" TYPE FILE FILES "/home/nivilwilsonp/Pictures/poppler-21.03.0/build/poppler-qt5.pc")
      endif()
      
      if("x${CMAKE_INSTALL_COMPONENT}x" STREQUAL "xUnspecifiedx" OR NOT CMAKE_INSTALL_COMPONENT)
        file(INSTALL DESTINATION "${CMAKE_INSTALL_PREFIX}/lib/pkgconfig" TYPE FILE FILES "/home/nivilwilsonp/Pictures/poppler-21.03.0/build/poppler-cpp.pc")
      endif()
      
      if(NOT CMAKE_INSTALL_LOCAL_ONLY)
        # Include the install script for each subdirectory.
        include("/home/nivilwilsonp/Pictures/poppler-21.03.0/build/utils/cmake_install.cmake")
        include("/home/nivilwilsonp/Pictures/poppler-21.03.0/build/test/cmake_install.cmake")
        include("/home/nivilwilsonp/Pictures/poppler-21.03.0/build/qt5/cmake_install.cmake")
        include("/home/nivilwilsonp/Pictures/poppler-21.03.0/build/cpp/cmake_install.cmake")
      
      endif()
      
      if(CMAKE_INSTALL_COMPONENT)
        set(CMAKE_INSTALL_MANIFEST "install_manifest_${CMAKE_INSTALL_COMPONENT}.txt")
      else()
        set(CMAKE_INSTALL_MANIFEST "install_manifest.txt")
      endif()
      
      string(REPLACE ";" "\n" CMAKE_INSTALL_MANIFEST_CONTENT
             "${CMAKE_INSTALL_MANIFEST_FILES}")
      file(WRITE "/home/nivilwilsonp/Pictures/poppler-21.03.0/build/${CMAKE_INSTALL_MANIFEST}"
           "${CMAKE_INSTALL_MANIFEST_CONTENT}")
      
      1 Reply Last reply
      0
      • SGaistS Offline
        SGaistS Offline
        SGaist
        Lifetime Qt Champion
        wrote on last edited by
        #10

        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.

        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
        • 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

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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
                            0
                            • 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

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                              • 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.

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                                  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)

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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".

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