src/Tools/Code/code_target.ML

       Isabelle_System.mkdirs root;
       map (fn (names, p) => File.write (Path.appends (root :: map Path.basic names)) (Code_Printer.format [] width p)) code_modules;
       ());
 
 fun export_information thy name content =
-  (Export.export thy name [content]; Export.information thy "");
+  (Export.export thy name [content]; writeln (Export.message thy ""));
 
 fun export_to_exports thy width (Singleton (extension, p)) =
       export_information thy (generatedN ^ "." ^ extension) (Code_Printer.format [] width p)
   | export_to_exports thy width (Hierarchy code_modules) = (
       map (fn (names, p) => export_information thy (Path.implode (Path.make names))