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QT 5.12 make Mingw 32 release

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  • AmrCoderA AmrCoder

    Yes i know but is there a way to make a 32 release from the 64 there is something like this here
    they add the -m32 to the compiler and it makes a 32 release and then tests by checking the

    sizeof(size_t)
    

    if it's 4 for 32 or 8 for 64, I already test by adding this to the argument in QT but it did not work

    mrjjM Offline
    mrjjM Offline
    mrjj
    Lifetime Qt Champion
    wrote on last edited by
    #4

    @AmrCoder
    well the Qt DLL files are still 64bit and a 32 bit app wont load them.
    But yes, its the same thing as link show.
    You just have to compile ALL of Qt to get same effect :)

    I think using 5.11.3 might be faster than compiling a new Qt but
    if you already have all dependencies and a powerfull pc, its
    not the biggest task.

    1 Reply Last reply
    3
    • AmrCoderA Offline
      AmrCoderA Offline
      AmrCoder
      wrote on last edited by
      #5

      the last question please, is there any chance for 32 version in the next versions QT 5.12.1 for example or it will be only 64?

      mrjjM 1 Reply Last reply
      0
      • AmrCoderA AmrCoder

        the last question please, is there any chance for 32 version in the next versions QT 5.12.1 for example or it will be only 64?

        mrjjM Offline
        mrjjM Offline
        mrjj
        Lifetime Qt Champion
        wrote on last edited by
        #6

        @AmrCoder
        Most likely only 64 bit.

        1 Reply Last reply
        1
        • naykN Offline
          naykN Offline
          nayk
          wrote on last edited by
          #7

          I build Qt 5.12 with MinGW 7.3.0 32bit from source. Download: link

          1 Reply Last reply
          5
          • AmrCoderA Offline
            AmrCoderA Offline
            AmrCoder
            wrote on last edited by
            #8

            I download it and add it to my QT 5.12 and it worked perfectly, really I appreciated that many thanks for you <3 and i hope they make a 32 bit release in the next versions if there is a way we can make a suggestion because most of us need our apps to be in 32 bit release, Thanks again @nayk

            aha_1980A 1 Reply Last reply
            0
            • naykN Offline
              naykN Offline
              nayk
              wrote on last edited by
              #9

              you are welcome

              1 Reply Last reply
              1
              • M Offline
                M Offline
                max.chen
                wrote on last edited by
                #10

                Hi nayk,

                I download it and add it to my QT 5.12 , but When i run the app i get some error about this:

                qt.qpa.plugin: Could not find the Qt platform plugin "windows" in ""
                

                Where have I not set up?

                naykN 1 Reply Last reply
                0
                • AmrCoderA Offline
                  AmrCoderA Offline
                  AmrCoder
                  wrote on last edited by
                  #11

                  I solve it by copying the folder of the 5.12.0\mingw73_32\plugins\platforms to the same folder that has the exe programe if there is a solution to solve it without this it will be better

                  L 1 Reply Last reply
                  0
                  • M max.chen

                    Hi nayk,

                    I download it and add it to my QT 5.12 , but When i run the app i get some error about this:

                    qt.qpa.plugin: Could not find the Qt platform plugin "windows" in ""
                    

                    Where have I not set up?

                    naykN Offline
                    naykN Offline
                    nayk
                    wrote on last edited by
                    #12

                    @max.chen try copying the "platforms/qwindows.dll" file to the application subdirectory "platforms".
                    qwindows.dll - for release mode, qwindowsd.dll - for debug mode.
                    Other plugins libraries may also be needed for you application.

                    1 Reply Last reply
                    1
                    • naykN Offline
                      naykN Offline
                      nayk
                      wrote on last edited by nayk
                      #13

                      I compiled this version with OpenSSL 1.1.1a and put the necessary dll in the "_dll_for_app" directory (libcrypto-1_1.dll, libssl-1_1.dll). OpenSSL is used by Qt5Network for https connections.
                      MySql 5.6 - for MySQL Qt plugin
                      PosgreSQL 9.6.11 - for PostgreSQL Qt plugin

                      1 Reply Last reply
                      2
                      • AmrCoderA AmrCoder

                        I download it and add it to my QT 5.12 and it worked perfectly, really I appreciated that many thanks for you <3 and i hope they make a 32 bit release in the next versions if there is a way we can make a suggestion because most of us need our apps to be in 32 bit release, Thanks again @nayk

                        aha_1980A Offline
                        aha_1980A Offline
                        aha_1980
                        Lifetime Qt Champion
                        wrote on last edited by aha_1980
                        #14

                        @AmrCoder said in QT 5.12 make Mingw 32 release:

                        I download it and add it to my QT 5.12 and it worked perfectly, really I appreciated that many thanks for you <3 and i hope they make a 32 bit release in the next versions if there is a way we can make a suggestion because most of us need our apps to be in 32 bit release,

                        You should write a mail to the Interest mailing list or directly create a suggestion in Jira.

                        In either case, please provide a link here, so we can follow the discussion. Thanks!

                        Edit: Follow-up: https://lists.qt-project.org/pipermail/interest/2018-December/031798.html

                        Qt has to stay free or it will die.

                        1 Reply Last reply
                        1
                        • AmrCoderA AmrCoder

                          I solve it by copying the folder of the 5.12.0\mingw73_32\plugins\platforms to the same folder that has the exe programe if there is a solution to solve it without this it will be better

                          L Offline
                          L Offline
                          Longxr
                          wrote on last edited by
                          #15

                          @AmrCoder 0_1546166691925_TIM截图20181230184431.png Add this environment variable

                          1 Reply Last reply
                          1
                          • KATO2K Offline
                            KATO2K Offline
                            KATO2
                            wrote on last edited by
                            #16

                            the solution proposed by @nayk works very well, however this is a partial solution, because each time you want to update Qt, you need to build a new version of Qt for x32. I think there is a way to cross compile your application using mingw-64w, but i don't know how to do that. Maybe someone can instruct us how to do it!

                            jsulmJ 1 Reply Last reply
                            0
                            • KATO2K KATO2

                              the solution proposed by @nayk works very well, however this is a partial solution, because each time you want to update Qt, you need to build a new version of Qt for x32. I think there is a way to cross compile your application using mingw-64w, but i don't know how to do that. Maybe someone can instruct us how to do it!

                              jsulmJ Offline
                              jsulmJ Offline
                              jsulm
                              Lifetime Qt Champion
                              wrote on last edited by
                              #17

                              @KATO2 Why do you want to cross compile? Just use MinGW32 to build Qt.

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

                              KATO2K 1 Reply Last reply
                              1
                              • sierdzioS Offline
                                sierdzioS Offline
                                sierdzio
                                Moderators
                                wrote on last edited by
                                #18

                                FYI: Qt 5.12.2 will ship with Mingw 32 packages included. UWP packages will be dropped.

                                (Z(:^

                                KATO2K 1 Reply Last reply
                                4
                                • jsulmJ jsulm

                                  @KATO2 Why do you want to cross compile? Just use MinGW32 to build Qt.

                                  KATO2K Offline
                                  KATO2K Offline
                                  KATO2
                                  wrote on last edited by
                                  #19

                                  @jsulm official QT 5.12.0 and QT 5.12.1 includes only MinGW 64, not MinGW 32 version was included.

                                  aha_1980A 1 Reply Last reply
                                  0
                                  • KATO2K KATO2

                                    @jsulm official QT 5.12.0 and QT 5.12.1 includes only MinGW 64, not MinGW 32 version was included.

                                    aha_1980A Offline
                                    aha_1980A Offline
                                    aha_1980
                                    Lifetime Qt Champion
                                    wrote on last edited by
                                    #20

                                    @KATO2 Correct. Nevertheless, that's compiling Qt from source, not cross-compiling.

                                    Qt has to stay free or it will die.

                                    1 Reply Last reply
                                    1
                                    • sierdzioS sierdzio

                                      FYI: Qt 5.12.2 will ship with Mingw 32 packages included. UWP packages will be dropped.

                                      KATO2K Offline
                                      KATO2K Offline
                                      KATO2
                                      wrote on last edited by
                                      #21

                                      @sierdzio That is super! I hope it will be release soon.

                                      aha_1980A 1 Reply Last reply
                                      1
                                      • KATO2K KATO2

                                        @sierdzio That is super! I hope it will be release soon.

                                        aha_1980A Offline
                                        aha_1980A Offline
                                        aha_1980
                                        Lifetime Qt Champion
                                        wrote on last edited by
                                        #22

                                        @KATO2 I'd say it may take four weeks until 5.12.2

                                        So if you are in a hurry, you can still consider building Qt yourself.

                                        Qt has to stay free or it will die.

                                        T 1 Reply Last reply
                                        1
                                        • AmrCoderA Offline
                                          AmrCoderA Offline
                                          AmrCoder
                                          wrote on last edited by
                                          #23

                                          @aha_1980 yes cross-compiling and iam sure when i release my application in Mingw32 it really no need any depend on windows, visual studio version always need some installed depend

                                          1 Reply Last reply
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