New in version 3.10.
Command that outputs the compiler pre definitions.
See AUTOMOC which uses CMAKE_CXX_COMPILER_PREDEFINES_COMMAND to generate the AUTOMOC_COMPILER_PREDEFINES.
© 2000–2020 Kitware, Inc. and Contributors
Licensed under the BSD 3-clause License.
https://cmake.org/cmake/help/v3.19/variable/CMAKE_LANG_COMPILER_PREDEFINES_COMMAND.html