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It is very important to initialize the qt-iphone library. To do the following to the beginning to main. This function will re-enter main.
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#ifdef Q_WS_IOS
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    QiOSInit(argc, argv);
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#endif
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If the application is not terminating as expected add an exit(0); to the end of main. These are some of the current limitations to the library.





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   Configuration





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To build for the iPhone Simulator (using the 4.2 SDK) - Shadow Build recommended:





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../<path_to_qt>/configure -xplatform iphonesimulator-g++42 -platform macx-ios-g++42 -opensource -ios -no-accessibility -no-qt3support -no-multimedia -no-phonon -no-phonon-backend -no-webkit -no-scripttools -no-sql-mysql -no-sql-odbc -no-cups -no-dbus -no-opengl -static -nomake demos -nomake docs -nomake examples





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To build for the iPhone Device - Shadow Build recommended:





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../<path_to_qt>/configure -xplatform iphone-device-g++42 -platform macx-g++-i386 -opensource -ios -no-pch -no-accessibility -no-qt3support -no-xmlpatterns -no-multimedia -no-phonon -no-phonon-backend -no-svg -no-webkit -no-scripttools -no-openssl -no-sql-mysql -no-sql-odbc -no-cups -no-iconv -no-dbus -no-opengl -static -nomake tools -nomake demos -nomake docs -nomake examples -nomake translations





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To build for the iPad Device - Shadow Build recommended:





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../<path_to_qt>/configure -xplatform ios-arm7-g++42 -platform macx-g++-i386 -opensource -ios -no-pch -no-accessibility -no-qt3support -no-xmlpatterns -no-multimedia -no-phonon -no-phonon-backend -no-svg -no-webkit -no-scripttools -no-openssl -no-sql-mysql -no-sql-odbc -no-cups -no-iconv -no-dbus -no-opengl -static -nomake tools -nomake demos -nomake docs -nomake examples -nomake translations -little-endian





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Note that currently the iPhone SDK used when building for the device is set in mkspecs/iphone-device-g++42/qmake.conf