New in version 3.5.
Build a combined (device and simulator) target when installing.
When this property is set to set to false (which is the default) then it will either be built with the device SDK or the simulator SDK depending on the SDK set. But if this property is set to true then the target will at install time also be built for the corresponding SDK and combined into one library.
Note
If a selected architecture is available for both: device SDK and simulator SDK it will be built for the SDK selected by CMAKE_OSX_SYSROOT and removed from the corresponding SDK.
This feature requires at least Xcode version 6.
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Licensed under the BSD 3-clause License.
https://cmake.org/cmake/help/v3.19/prop_tgt/IOS_INSTALL_COMBINED.html