message: clang: add stdc++fs
diff: @@ -39,7 +39,7 @@ set_target_properties(hdlConvertor_core_static
  set_coverage_if_enabled(hdlConvertor_core_static ON)
  if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
  - set(CPP_STD_FILESYSTEM_LIB_NAME c++experimental)
  + set(CPP_STD_FILESYSTEM_LIB_NAME stdc++fs)
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++")
  elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
  set(CPP_STD_FILESYSTEM_LIB_NAME stdc++fs)
  