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  1. Qt
  2. QTBUG-64263

Linking errors with iOS armv7 builds

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    • Icon: Bug Bug
    • Resolution: Duplicate
    • Icon: P2: Important P2: Important
    • None
    • 5.10.0 Beta 3
    • QPA
    • None
    • iOS 11.1
    • iOS/tvOS/watchOS

      1.) Change the iOS makespec so that it includes armv7 and arm64

      2.) Configure:

      ./configure -prefix /Users/Peter/qtdevbuilt/ios5_10 -xplatform macx-ios-clang -release -nomake examples -nomake tests -opensource -confirm-license -skip qtcanvas3d -skip qtdatavis3d -skip qtwebengine -skip qtactiveqt -skip qtgamepad -skip qtserialbus -skip qtspeech -skip qtvirtualkeyboard -skip qtwayland
      

      3.) Compile one of the Qt examples which uses QtQuick (for example "sidebar"). Compilation fails with this linking error (full log attached):

      Undefined symbols for architecture armv7:
        "operator delete(void*, std::align_val_t)", referenced from:
            QQuickOpenGLShaderEffect::~QQuickOpenGLShaderEffect() in libQt5Quick.a(qquickopenglshadereffect.o)
            QtPrivate::MappedSlotObject::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) in libQt5Quick.a(qquickopenglshadereffect.o)
        "operator new(unsigned long, std::align_val_t)", referenced from:
            QQuickShaderEffect::QQuickShaderEffect(QQuickItem*) in libQt5Quick.a(qquickshadereffect.o)
            QQuickOpenGLShaderEffectCommon::lookThroughShaderCode(QQuickItem*, QMetaObject const*, QQuickOpenGLShaderEffectMaterialKey::ShaderType, QByteArray const&) in libQt5Quick.a(qquickopenglshadereffect.o)
            QQuickOpenGLShaderEffectCommon::updateShader(QQuickItem*, QMetaObject const*, QQuickOpenGLShaderEffectMaterialKey::ShaderType) in libQt5Quick.a(qquickopenglshadereffect.o)
      ld: symbol(s) not found for architecture armv7
      clang: error: linker command failed with exit code 1 (use -v to see invocation)
      

      When Qt is compiled only for arm64 (remove "armv7" from makespec) then compilation succeeds.

       

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            vestbo Tor Arne Vestbø
            DanielSt Peter Staab
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              Created:
              Updated:
              Resolved:

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