Ignored. See CMake Policy CMP0043.
Per-configuration preprocessor definitions on a source file.
This is the configuration-specific version of COMPILE_DEFINITIONS. Note that Xcode does not support per-configuration source file flags so this property will be ignored by the Xcode generator.
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Licensed under the BSD 3-clause License.
https://cmake.org/cmake/help/v3.19/prop_sf/COMPILE_DEFINITIONS_CONFIG.html