New in version 3.13.
Full path to cpack(1) command installed with CMake.
This is the full path to the CPack executable cpack(1) which is useful from custom commands that want to use the cmake(1) -E option for portable system commands.
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Licensed under the BSD 3-clause License.
https://cmake.org/cmake/help/v3.19/variable/CMAKE_CPACK_COMMAND.html