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  4. Can't find stdlib.h included in cstdlib.

Can't find stdlib.h included in cstdlib.

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  • egg.nutE egg.nut

    I'm a green hand at Qt on Android. I ran into some problems in my first try.
    Error

    /home/***/libs/android-ndk-r10/sources/cxx-stl/gnu-libstdc++/4.9/include/cstdlib:72: error: stdlib.h: No such file or directory
     #include <stdlib.h>
              ^
    

    Other output

    /bin/sh: 1: /home/***/libs/android-ndk-r10/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc: not found
    /bin/sh: 1: /home/***/libs/android-ndk-r10/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc: not found
    /bin/sh: 1: /home/***/libs/android-ndk-r10/toolchains/x86-4.8/prebuilt/linux-x86_64/bin/i686-linux-android-gcc: not found
    

    Kids

    • Ubuntu 16.04
    • Qt for Android 5.5
    • openjdk 80
    • ndk r23
    • ndk r10

    In fact, I've tried to include the .h files manually.
    The missing-header error disappeared,but,many more other errors came up.
    I thought I've set ndk incorrectly,but,I've no idea about how it should be arranged.
    It's such a mess.Could you tell me how to solve it or any docs or blogs that I need?

    jsulmJ Online
    jsulmJ Online
    jsulm
    Lifetime Qt Champion
    wrote on last edited by
    #2

    @egg.nut Hi!
    Did you read http://doc.qt.io/qt-5/androidgs.html ?
    And you did not say what exactly you're trying to do?
    Are you trying to build a Qt application for android?
    Do you use QtCreator?

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

    egg.nutE 3 Replies Last reply
    0
    • jsulmJ jsulm

      @egg.nut Hi!
      Did you read http://doc.qt.io/qt-5/androidgs.html ?
      And you did not say what exactly you're trying to do?
      Are you trying to build a Qt application for android?
      Do you use QtCreator?

      egg.nutE Offline
      egg.nutE Offline
      egg.nut
      wrote on last edited by
      #3

      @jsulm
      In fact, I had been following http://doc.qt.io/qt-5/androidgs.html.
      To build an android app.
      With QtCreator.
      Only ONE THING went wrong that the SDK Manager couldn't fetch any file and said there were nothing to install or update.
      But,I don't think it causes this problem.
      Dose it?
      ╮(╯▽╰)╭

      1 Reply Last reply
      0
      • jsulmJ jsulm

        @egg.nut Hi!
        Did you read http://doc.qt.io/qt-5/androidgs.html ?
        And you did not say what exactly you're trying to do?
        Are you trying to build a Qt application for android?
        Do you use QtCreator?

        egg.nutE Offline
        egg.nutE Offline
        egg.nut
        wrote on last edited by
        #4

        @jsulm
        the SDK Manager pops a window:

        Fetching http://dl-ssl.google.com/android/repository/addons_list-2.xml
        Fetched Add-ons List successfully
        Fetching URL: http://dl-ssl.google.com/android/repository/repository-10.xml
        Done loading packages.
        Fetching http://dl-ssl.google.com/android/repository/addons_list-2.xml
        Failed to fetch URL http://dl-ssl.google.com/android/repository/addons_list-2.xml, reason: Connection to http://dl-ssl.google.com refused
        Fetched Add-ons List successfully
        Fetching URL: http://dl-ssl.google.com/android/repository/repository-10.xml

        1 Reply Last reply
        0
        • egg.nutE Offline
          egg.nutE Offline
          egg.nut
          wrote on last edited by
          #5

          I manually changed the INCLUDEPATH, Qt found the headers but said:

          cannot open crtbegin_so.o: No such file or directory
          cannot open crtend_so.o: No such file or directory

          followed by many other errors.

          1 Reply Last reply
          0
          • jsulmJ jsulm

            @egg.nut Hi!
            Did you read http://doc.qt.io/qt-5/androidgs.html ?
            And you did not say what exactly you're trying to do?
            Are you trying to build a Qt application for android?
            Do you use QtCreator?

            egg.nutE Offline
            egg.nutE Offline
            egg.nut
            wrote on last edited by
            #6

            @jsulm
            I set the INCLUDEPATH,
            make links of many files.
            and it works...
            But there must be something wrong:why these paths goes wrong.

            that's what I did:

            xiaodan@xiaodan-G41M-ES2L:~/qtproj/build-test_android-Android_for_armeabi_GCC_4_9_Qt_5_5_0-Debug$ ll
            lrwxrwxrwx  1 xiaodan xiaodan     85 7月  19 17:52 crtbegin_so.o -> /home/xiaodan/libs/android-ndk-r10/platforms/android-L/arch-arm/usr/lib/crtbegin_so.o
            lrwxrwxrwx  1 xiaodan xiaodan     83 7月  19 17:52 crtend_so.o -> /home/xiaodan/libs/android-ndk-r10/platforms/android-L/arch-arm/usr/lib/crtend_so.o
            
            xiaodan@xiaodan-G41M-ES2L:~/libs/android-ndk-r10/prebuilt$ ll
            lrwxrwxrwx  1 xiaodan xiaodan   14 7月  19 17:58 android-arm -> android-arm64//
            
            jsulmJ 1 Reply Last reply
            0
            • egg.nutE egg.nut

              @jsulm
              I set the INCLUDEPATH,
              make links of many files.
              and it works...
              But there must be something wrong:why these paths goes wrong.

              that's what I did:

              xiaodan@xiaodan-G41M-ES2L:~/qtproj/build-test_android-Android_for_armeabi_GCC_4_9_Qt_5_5_0-Debug$ ll
              lrwxrwxrwx  1 xiaodan xiaodan     85 7月  19 17:52 crtbegin_so.o -> /home/xiaodan/libs/android-ndk-r10/platforms/android-L/arch-arm/usr/lib/crtbegin_so.o
              lrwxrwxrwx  1 xiaodan xiaodan     83 7月  19 17:52 crtend_so.o -> /home/xiaodan/libs/android-ndk-r10/platforms/android-L/arch-arm/usr/lib/crtend_so.o
              
              xiaodan@xiaodan-G41M-ES2L:~/libs/android-ndk-r10/prebuilt$ ll
              lrwxrwxrwx  1 xiaodan xiaodan   14 7月  19 17:58 android-arm -> android-arm64//
              
              jsulmJ Online
              jsulmJ Online
              jsulm
              Lifetime Qt Champion
              wrote on last edited by
              #7

              @egg.nut Did you configure QtCreator properly? Last time I did something for Android everything was working just fine after setting up SDK/NDK/QtCreator (and Qt for Android).

              This one looks strange: android-arm -> android-arm64
              Are you trying to build for arm64?

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

              egg.nutE 2 Replies Last reply
              0
              • jsulmJ jsulm

                @egg.nut Did you configure QtCreator properly? Last time I did something for Android everything was working just fine after setting up SDK/NDK/QtCreator (and Qt for Android).

                This one looks strange: android-arm -> android-arm64
                Are you trying to build for arm64?

                egg.nutE Offline
                egg.nutE Offline
                egg.nut
                wrote on last edited by
                #8

                @jsulm
                Firstly,I did set the kits and it seems all right.
                Secondly,there no android-arm fold under ndk/prebuild so I gave it a link.
                Thirdly,It really works...

                Everything is wrong, and it turns to be fine.

                It struck me that I only set the Qt.Is there anything to set in SDK or NDK?

                1 Reply Last reply
                0
                • jsulmJ jsulm

                  @egg.nut Did you configure QtCreator properly? Last time I did something for Android everything was working just fine after setting up SDK/NDK/QtCreator (and Qt for Android).

                  This one looks strange: android-arm -> android-arm64
                  Are you trying to build for arm64?

                  egg.nutE Offline
                  egg.nutE Offline
                  egg.nut
                  wrote on last edited by
                  #9

                  @jsulm
                  I've seen a warning in Android Setting:
                  Qt versions for 3 architectures are missing.
                  Does this matters?

                  jsulmJ 1 Reply Last reply
                  0
                  • egg.nutE egg.nut

                    @jsulm
                    I've seen a warning in Android Setting:
                    Qt versions for 3 architectures are missing.
                    Does this matters?

                    jsulmJ Online
                    jsulmJ Online
                    jsulm
                    Lifetime Qt Champion
                    wrote on last edited by
                    #10

                    @egg.nut If you have Qt for the architecture you want to use then you can ignore all the other

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

                    egg.nutE 1 Reply Last reply
                    0
                    • jsulmJ jsulm

                      @egg.nut If you have Qt for the architecture you want to use then you can ignore all the other

                      egg.nutE Offline
                      egg.nutE Offline
                      egg.nut
                      wrote on last edited by
                      #11

                      @jsulm
                      Not knowing what exactly is going wrong, it works.
                      Thanks a lot for your help.
                      I hope you could do me a hand again when other error occurs.

                      jsulmJ 1 Reply Last reply
                      0
                      • egg.nutE egg.nut

                        @jsulm
                        Not knowing what exactly is going wrong, it works.
                        Thanks a lot for your help.
                        I hope you could do me a hand again when other error occurs.

                        jsulmJ Online
                        jsulmJ Online
                        jsulm
                        Lifetime Qt Champion
                        wrote on last edited by
                        #12

                        @egg.nut Sure, I will help if I can

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

                        1 Reply Last reply
                        0
                        • egg.nutE egg.nut

                          I'm a green hand at Qt on Android. I ran into some problems in my first try.
                          Error

                          /home/***/libs/android-ndk-r10/sources/cxx-stl/gnu-libstdc++/4.9/include/cstdlib:72: error: stdlib.h: No such file or directory
                           #include <stdlib.h>
                                    ^
                          

                          Other output

                          /bin/sh: 1: /home/***/libs/android-ndk-r10/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc: not found
                          /bin/sh: 1: /home/***/libs/android-ndk-r10/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc: not found
                          /bin/sh: 1: /home/***/libs/android-ndk-r10/toolchains/x86-4.8/prebuilt/linux-x86_64/bin/i686-linux-android-gcc: not found
                          

                          Kids

                          • Ubuntu 16.04
                          • Qt for Android 5.5
                          • openjdk 80
                          • ndk r23
                          • ndk r10

                          In fact, I've tried to include the .h files manually.
                          The missing-header error disappeared,but,many more other errors came up.
                          I thought I've set ndk incorrectly,but,I've no idea about how it should be arranged.
                          It's such a mess.Could you tell me how to solve it or any docs or blogs that I need?

                          lm365cnL Offline
                          lm365cnL Offline
                          lm365cn
                          wrote on last edited by
                          #13

                          @egg.nut I met the same question,how do you solve it?

                          1 Reply Last reply
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