For Windows and Unix, use InstallJammer.
For Mac OS X, use the tool that comes with Qt itself: macdeployqt. Read more about this here . This application will add all the necessary frameworks and build DMG from your application in one call from the console.
If you have resource files (such as images or XML files, etc.) that you want to distribute with your application, compile them into your application directly using the Qt Resource System . This will simplify the distribution of your application on all platforms.
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