cmake CMAKE_LINK_DEF_FILE_FLAG examples

Lewuathe/mlir-hello thirdparty/llvm-project/openmp/runtime/src/CMakeLists.txt :358 

set_target_properties(${LIBOMP_IMP_LIB_TARGET} PROPERTIES
        PREFIX "" SUFFIX "" OUTPUT_NAME "${LIBOMP_IMP_LIB_FILE}" LINKER_LANGUAGE ${LIBOMP_LINKER_LANGUAGE}
        STATIC_LIBRARY_OPTIONS "${CMAKE_LINK_DEF_FILE_FLAG}${CMAKE_CURRENT_BINARY_DIR}/${LIBOMPIMP_GENERATED_DEF_FILE}")