Ask cmake_install.cmake script to warn each time a file with absolute INSTALL DESTINATION is encountered.
This variable is used by CMake-generated cmake_install.cmake scripts. If one sets this variable to ON while running the script, it may get warning messages from the script.
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Licensed under the BSD 3-clause License.
https://cmake.org/cmake/help/v3.7/variable/CMAKE_WARN_ON_ABSOLUTE_INSTALL_DESTINATION.html