src/Pure/ML-Systems/ml_system.ML

   val name: string
   val is_polyml: bool
   val is_smlnj: bool
   val platform: string
   val platform_is_cygwin: bool
+  val platform_is_windows: bool
   val share_common_data: unit -> unit
   val save_state: string -> unit
 end;
 
 structure ML_System: ML_SYSTEM =

 val is_polyml = String.isPrefix "polyml" name;
 val is_smlnj = String.isPrefix "smlnj" name;
 
 val SOME platform = OS.Process.getEnv "ML_PLATFORM";
 val platform_is_cygwin = String.isSuffix "cygwin" platform;
+val platform_is_windows = String.isSuffix "windows" platform;
 
 fun share_common_data () = ();
 fun save_state _ = raise Fail "Cannot save state -- undefined operation";
 
 end;