message: explicit path->string conversion
diff: @@ -466,7 +466,7 @@ string run_verilog_preproc_str(const string & input_str,
  string run_verilog_preproc_file(const filesystem::path & filename,
  vector<filesystem::path> &incdir, macroSymbol & defineDB,
  vector<filesystem::path> & stack_incfile, Language mode) {
  - ANTLRFileStream input(filename);
  + ANTLRFileStream input(filename.u8string());
  filesystem::path dir = filename.parent_path();
  bool add_to_inc_dir = std::find(incdir.begin(), incdir.end(), dir)
  