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Thus, this cannot be automated by Qt, but requires some platform-specific code written specifically for the application itself. Since this is a copy protection mechanism, steps should be taken to avoid common patterns and obfuscate the code that validates the receipt as much as possible. In order to pass validation, the application must verify the existence of a valid receipt before executing any code. Note: For selling applications in the macOS App Store, special rules apply.

To ensure that Qt complies with the app store sandbox rules, Qt must be configured with the -feature-appstore-compliant argument.įor details about deployment on macOS, see Qt for macOS - Deployment. macdeployqt (bin/macdeployqt) can be used as a starting point for app store deployment.

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dmg archive.Īpplications can also be distributed through the Mac App Store. The deployment tool, macdeployqt (available from the macOS installers), can be used to create the self-contained bundles, and optionally also create a. pro) to disable it.Ī common way to distribute applications is to provide a compressed disk image (.dmg file) that the user can mount in Finder. Set CONFIG -= app_bundle in your project file (. To build your application as an application bundle with CMake, set the MACOSX_BUNDLE property on your executable target. Third party libraries like Qt are normally not installed system-wide each application provides its own copy. The application bundle contains the application executable as well as dependencies such as the Qt libraries, plugins, translations and other resources you may need. MacOS applications are typically deployed as self-contained application bundles. Qmake ~ /src /myapp -spec macx -xcode Deploying Applications on macOS

For example, to build your application for both x86_64 and arm64 with CMake:

This allows you to both cross-compile to a different architecture, and to build universal (multi-architecture) binaries. To build for other architectures you can use the CMAKE_OSX_ARCHITECTURES and QMAKE_APPLE_DEVICE_ARCHS variables in your project files or on the command line. Architecturesīy default, Qt will build for the architecture of your development machine - either x86_64, or arm64 if you are on an Apple Silicon Mac. This technique allows Apple to ensure that binaries built long before the new SDK and operating system was released will still continue to run without regressions on new macOS releases.īuilding against an older SDK is a last-resort solution, and should only be applied if your application has no other ways of working around the problem. One caveat to using the latest Xcode version and SDK to build your application is that macOS's system frameworks will sometimes decide whether or not to enable behavior changes based on the SDK you built your application with.įor example, when dark-mode was introduced in macOS 10.14 Mojave, macOS would only treat applications built against the 10.14 SDK as supporting dark-mode, and would leave applications built against earlier SDKs with the default light mode look. Doing so will likely lead to crashes at runtime if the binary is then deployed to a macOS version lower than what Qt expected to run on.įor more information about SDK-based development on macOS, see Apple's developer documentation. Note: You should not lower the deployment target beyond the default value set by Qt. You only need to change this default if you know that your own code uses macOS APIs that are only available in a particular version higher than what Qt defaults to. Qt expresses the deployment target via the CMAKE_OSX_DEPLOYMENT_TARGET or QMAKE_MACOSX_DEPLOYMENT_TARGET variables, which has a default value set by Qt. If the binary is launched on a macOS version below the deployment target macOS or Qt will give an error message and the application will not run. In theory this would allow running your application on every single macOS version released, but for practical (and technical) reasons there is a lower limit to this range, known as the deployment target of your application. When the binary is run on a macOS version lower than the SDK it was built with, Qt will check at runtime whether or not a platform feature is available before utilizing it. 14.sdk Target Platformsīuilding for macOS utilizes a technique called weak linking that allows you to build your application against the headers and libraries of the latest platform SDK, while still allowing your application to be deployed to macOS versions lower than the SDK version. app /Contents /Developer /Platforms /MacOSX.