New in version 3.13.
Specify environment variables that should be added to the Arguments section of the generated Xcode scheme.
If set to a list of environment variables and values of the form MYVAR=value those environment variables will be added to the scheme.
Please refer to the XCODE_GENERATE_SCHEME target property documentation to see all Xcode schema related properties.
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Licensed under the BSD 3-clause License.
https://cmake.org/cmake/help/v3.19/prop_tgt/XCODE_SCHEME_ENVIRONMENT.html