public static void cppStandaloneOutputImportDeclarations(String headerfilename) {
    Stella.cppOutputIncludeDirective(Stella.makeFileName("cpp-standalone", Stella.KWD_CPP_HEADER, true), true);
    Stella.cppOutputIncludeDirective(headerfilename, true);
    ((OutputStream)(Stella.$CURRENT_STREAM$.get())).nativeStream.println();
  }