message: Remove undefined dynamic_lookup on UNIX
  Should be a the same behaviour, since there it's already default, and
  providing it explicitly triggers a warning that might become a problem.
diff: @@ -807,9 +807,11 @@ function(build_loadable_extension_directory NAME OUTPUT_DIRECTORY PARAMETERS)
  if (WIN32)
  target_link_libraries(${TARGET_NAME} duckdb ${DUCKDB_EXTRA_LINK_FLAGS})
  elseif("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang$")
  + if (APPLE)
  set_target_properties(${TARGET_NAME} PROPERTIES LINK_FLAGS "-undefined dynamic_lookup")
  endif()
  endif()
  + endif()
  target_compile_definitions(${TARGET_NAME} PUBLIC -DDUCKDB_BUILD_LOADABLE_EXTENSION)
  