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Building 32 Bit QT on OSX10.8

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  • G Offline
    G Offline
    garyd_dmx
    wrote on last edited by
    #1

    I'm trying to build a 32 bit version of QT4.8.4 on my OSX 10.8 machine. I need this version to work on OSX 10.7+, so I'm trying to set the MacOS SDK to the one for 10.7 . When linking, QtWebkit seems to not be respecting this sdk:

    Undefined symbols for architecture i386:
    "_kCFURLRequestAllowAllPOSTCaching", referenced from:
    _WKCFURLRequestAllowAllPostCaching in libWebKitSystemInterfaceMountainLion.a(WebKitSystemInterface.o)
    ld: symbol(s) not found for architecture i386

    I believe it should be linking libWebKitSystemInterfaceLion.a when using the 10.7 SDK. To make the build do this on an OSX 10.8 machine , QMAKE_MAC_SDK would need to be set to the path to the 10.7 SDK. I don't believe this is being set.

    How can I configure a QT build such that QMAKE_MAC_SDK is set to the correct path?

    Thanks!

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    • sierdzioS Offline
      sierdzioS Offline
      sierdzio
      Moderators
      wrote on last edited by
      #2

      SDKs are backwards-compatible. When building, usually the newest one is used, only set to work in 10.7 mode.

      The standard configure flag is -sdk. You can export QMAKE_MAC_SDK by hand in terminal, if you wish. Do you need WebKit in your app, by the way? Maybe the solution would be just to pass -no-webkit.

      (Z(:^

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      • G Offline
        G Offline
        garyd_dmx
        wrote on last edited by
        #3

        Sadly I do need webkit in my app.

        As for the backward compatible bit, I built using the 10.8 SDK ( a default build with the exception of targeting 32-bit). When run on a 10.7 or 10.6 machine, QtWebkit is having a lot of trouble finding frameworks. A few system frameworks have been moved around in OSX10.8, and these moved frameworks are not found in 10.7.

        Is there another switch I can use to solve my dynamic linking issues? I tried using install_name_tool to change things around, but it was futile due to the number of issues.

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        • sierdzioS Offline
          sierdzioS Offline
          sierdzio
          Moderators
          wrote on last edited by
          #4

          Sorry, I don't know. I had a ton of problems with 10.8, but not in WebKit. Some linking problems were solved when I forced the environment to use g++ as a linker instead od ld (I know it sounds crazy, but works. g++ translates some of the linking flags that ld does not understand). This error looks different, though.

          You can try passing 10.7 SDK path as -sysroot and -isysroot flags to both the compiler and linker.

          (Z(:^

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          • T Offline
            T Offline
            taurus
            wrote on last edited by
            #5

            Use a patch from https://bugreports.qt-project.org/browse/QTBUG-29829

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