CMAKE_POSITION_INDEPENDENT_CODE
Default value for POSITION_INDEPENDENT_CODE of targets.
This variable is used to initialize the POSITION_INDEPENDENT_CODE property on all the targets. See that target property for additional information. If set, it’s value is also used by the try_compile() command.
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Licensed under the BSD 3-clause License.
https://cmake.org/cmake/help/v3.15/variable/CMAKE_POSITION_INDEPENDENT_CODE.html