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(resolved) adding versions of the libraries (was: Creator: size_t/ssize_t not recognized)

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  • mzimmersM Offline
    mzimmersM Offline
    mzimmers
    wrote on last edited by
    #20

    OK...I think I have it working now.

    For posteriority, here's what I did:

    • I deleted everything from my Qt install (using the maintenance tool and then deleting the other directories with the libs, etc.), and reinstalled from scratch:

    QtSDK 1.2.1

    Qt Libs 4.8.3 (MinGW 4.4)

    Qt Creator 2.5.2

    • Manually added the MinGW tool chain (even though there was already an entry), selected the g++.exe binary and the pythongdb debugger.

    • Manually added 4.8.3 to my Qt Versions.

    • Selected 4.8.3 in my build settings.

    And now I seem to be back in battery.

    Thanks for all the help, JKSH...I appreciate it.

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    • mzimmersM Offline
      mzimmersM Offline
      mzimmers
      wrote on last edited by
      #21

      OK, I may have a new issue here. As noted above, I got this working with MinGW, which I'd installed into C:\Qt\4.8.3 per the installers recommendation. Today I was going to try to install the libraries for MSVC, and the installer wants to install into the same location as above. If I do this, I'm going to overwrite files and cause general confusion, right?

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      • JKSHJ Offline
        JKSHJ Offline
        JKSH
        Moderators
        wrote on last edited by
        #22

        Yep, installing into the same folder would do bad things :)

        You can choose ANY new folder you want -- it won't affect Qt's ability to function. Even C:\PacMan\ will do, but I'd suggest something along the lines of C:\Qt\4.8.3_msvc\

        P.S. And for consistency, the other installation could go into C:\Qt\4.8.3_mingw\ , but it's not necessary to disturb your private installation, if you can remember which is which

        Qt Doc Search for browsers: forum.qt.io/topic/35616/web-browser-extension-for-improved-doc-searches

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        • mzimmersM Offline
          mzimmersM Offline
          mzimmers
          wrote on last edited by
          #23

          Yeah, that's what I figured. Since I already installed the MinGW version into \Qt\4.8.3, I guess I should remove this and re-install, huh?

          Thanks.

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          • JKSHJ Offline
            JKSHJ Offline
            JKSH
            Moderators
            wrote on last edited by
            #24

            You're welcome. :) Whether you remove and reinstall or not is completely up to you -- Qt doesn't care. I would do it, because (1) I like a tidy and consistent computing environment, and (2) Qt Creator displays the name of your installation root in your "Qt Versions" list

            Actually, point (2) made me realize something: It probably looks nicer to install into C:\Qt\4.8.3\mingw\ and C:\Qt\4.8.3\msvc2010\ instead of C:\Qt\4.8.3_mingw\ and C:\Qt\4.8.3_msvc\ ... because Qt Creator will then say

            "Qt 4.8.3 (mingw)" and "Qt 4.8.3 (msvc2010)"
            instead of
            "Qt 4.8.3 (4.8.3_mingw)" and "Qt 4.8.3 (4.8.3_msvc)"

            Qt Doc Search for browsers: forum.qt.io/topic/35616/web-browser-extension-for-improved-doc-searches

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            • mzimmersM Offline
              mzimmersM Offline
              mzimmers
              wrote on last edited by
              #25

              This is very useful; I think I'm almost there. Should I create a manual entry for the MSVC tool chain like I did for MinGW?

              Edit:

              I'm also getting some linker errors, stemming from my attempt to use sockets. According to the Microsoft online documentation, I should be including this library (which I am):

              @_WIN32:libs += "C:/Program Files (x86)/Windows Kits/8.0/Lib/win8/um/x86/ws2_32.lib"@

              Any idea what might be going on here?

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              • JKSHJ Offline
                JKSHJ Offline
                JKSH
                Moderators
                wrote on last edited by
                #26

                Pretty much.

                I've always found manual setup easier than auto-detection, since I don't need to worry about the order of installation (the latter requires a library-and-then-Creator order). Also, I can remove/upgrade my manual installation at any time -- Creator will complain if an auto-detected library is removed, and won't auto-detect a version upgrade.

                Qt Doc Search for browsers: forum.qt.io/topic/35616/web-browser-extension-for-improved-doc-searches

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                • mzimmersM Offline
                  mzimmersM Offline
                  mzimmers
                  wrote on last edited by
                  #27

                  Thanks, JKSH. I got the libraries properly installed, and can build with MinGW. Trying to build with MSVC is giving me some problems that aren't Qt/Creator related, so I'm getting help in another forum for those.

                  More as it happens...

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                  • mzimmersM Offline
                    mzimmersM Offline
                    mzimmers
                    wrote on last edited by
                    #28

                    OK, I think I'm really close to wrapping this up. Here's the final (for now!) loose end:

                    MinGW and MSVC use different libraries for socket functions. MSVC uses ws2_32.lib, which I believe is the "standard" library for this purpose. MinGW, on the other hand, uses libws2_32.a.

                    So...how do I create entries in my .pro file that will work for both tool chains? (I assume that I want to use the different libraries for the respective tool chains.)

                    Thanks.

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                    • JKSHJ Offline
                      JKSHJ Offline
                      JKSH
                      Moderators
                      wrote on last edited by
                      #29

                      Hmm... I'm not sure. Does the `-lws2_32' flag not work for both versions of the library?

                      It might be worth starting a new thread, to get a new set of eyes.

                      Qt Doc Search for browsers: forum.qt.io/topic/35616/web-browser-extension-for-improved-doc-searches

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                      • mzimmersM Offline
                        mzimmersM Offline
                        mzimmers
                        wrote on last edited by
                        #30

                        I wasn't familiar with that flag. How does one set linker flags within Creator? I tried using the QMAKE_LFLAGS option in my .pro file, but that didn't work (probably because it isn't a qmake flag).

                        Thanks.

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                        • JKSHJ Offline
                          JKSHJ Offline
                          JKSH
                          Moderators
                          wrote on last edited by
                          #31

                          @
                          LIBS += -lws2_32
                          @

                          (although, I just realized it might be a GCC flag)

                          Qt Doc Search for browsers: forum.qt.io/topic/35616/web-browser-extension-for-improved-doc-searches

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                          • mzimmersM Offline
                            mzimmersM Offline
                            mzimmers
                            wrote on last edited by
                            #32

                            Ahh...I didn't realize that LIBS did double duty (specifying both libraries and flags). Excellent, and thanks for all the help.

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                            • JKSHJ Offline
                              JKSHJ Offline
                              JKSH
                              Moderators
                              wrote on last edited by
                              #33

                              No problem :) Glad to hear that your setup has finally succeeded

                              Qt Doc Search for browsers: forum.qt.io/topic/35616/web-browser-extension-for-improved-doc-searches

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