diff -r 42c94393d39e -r 3198f547f8af src/Pure/ML-Systems/mlworks.ML
--- a/src/Pure/ML-Systems/mlworks.ML	Thu Feb 04 18:15:01 1999 +0100
+++ b/src/Pure/ML-Systems/mlworks.ML	Thu Feb 04 18:15:20 1999 +0100
@@ -124,9 +124,8 @@
 
 (* file handling *)
 
-(*get time of last modification; if file doesn't exist return an empty string*)
-fun file_info "" = ""		(* FIXME !? *)
-  | file_info name = Time.toString (OS.FileSys.modTime name) handle _ => "";
+(*get time of last modification*)
+fun file_info name = Time.toString (OS.FileSys.modTime name) handle _ => "";
 
 
 (* getenv *)