The helpers added by:
* commit 37bc3400cd (CMakePackageConfigHelpers: Add
generate_apple_platform_selection_file(), 2023-11-03)
* commit 4ac5a2f866 (CMakePackageConfigHelpers: Add
generate_apple_architecture_selection_file(), 2023-12-19)
were worded in terms of including package configuration files, but the
actual functionality is to include files *from* package configuration
files. The included files do not themselves need to be usable as
package configuration files.
Rename the options and clarify the documentation accordingly.
Issue: #25262
Issue: #25516
In commit 25977e177b (apple: add preliminary visionOS support, 2023-06-22)
we added visionOS based on a Xcode 15 beta version, but the Xcode 15.0
final release did not include it. Disable the test cases until we can
improve the condition to detect availability.
Issue: #25266
In commit 7050ac56a1 (macOS: Add support for linking against .xcframework
folders, 2023-05-17) used conditions based on the AppleClang compiler
version, but we actually want to check the Xcode version.
Raul Metsma