CMAKE_LIBRARY_OUTPUT_DIRECTORY_<CONFIG>
Where to put all the LIBRARY target files when built for a specific configuration.
This variable is used to initialize the LIBRARY_OUTPUT_DIRECTORY_<CONFIG> property on all the targets. See that target property for additional information.
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Licensed under the BSD 3-clause License.
https://cmake.org/cmake/help/v3.6/variable/CMAKE_LIBRARY_OUTPUT_DIRECTORY_CONFIG.html