IMPORTED_LINK_INTERFACE_LANGUAGES

Set this to the list of languages of source files compiled to produce a STATIC IMPORTED library (such as “C” or “CXX”). CMake accounts for these languages when computing how to link a target to the imported library. For example, when a C executable links to an imported C++ static library CMake chooses the C++ linker to satisfy language runtime dependencies of the static library.

This property is ignored for targets that are not STATIC libraries. This property is ignored for non-imported targets.

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Licensed under the BSD 3-clause License.
https://cmake.org/cmake/help/v3.11/prop_tgt/IMPORTED_LINK_INTERFACE_LANGUAGES.html