Enable interprocedural optimization for a target.
If set to true, enables interprocedural optimizations if they are known to be supported by the compiler.
This property is initialized by the CMAKE_INTERPROCEDURAL_OPTIMIZATION variable if it is set when a target is created.
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Licensed under the BSD 3-clause License.
https://cmake.org/cmake/help/v3.12/prop_tgt/INTERPROCEDURAL_OPTIMIZATION.html