CMAKE_<LANG>_IMPLICIT_LINK_FRAMEWORK_DIRECTORIES

These paths are implicit linker framework search directories for the compiler’s language. CMake automatically detects these directories for each language and reports the results in this variable.

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Licensed under the BSD 3-clause License.
https://cmake.org/cmake/help/v3.15/variable/CMAKE_LANG_IMPLICIT_LINK_FRAMEWORK_DIRECTORIES.html