IMPORTED_IMPLIB_

From Get docs
Cmake/docs/3.21/prop tgt/imported implib config


IMPORTED_IMPLIB_

-specific version of IMPORTED_IMPLIB property.

Configuration names correspond to those provided by the project from which the target is imported.

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Licensed under the BSD 3-clause License.
https://cmake.org/cmake/help/v3.21/prop_tgt/IMPORTED_IMPLIB_CONFIG.html