system;
use_text: pass print function;

--- a/src/Pure/ML-Systems/mlworks.ML	Wed Oct 13 19:42:12 1999 +0200
+++ b/src/Pure/ML-Systems/mlworks.ML	Wed Oct 13 19:42:46 1999 +0200
@@ -78,7 +78,7 @@
 (* ML command execution *)
 
 (*Can one redirect 'use' directly to an instream?*)
-fun use_text _ txt =
+fun use_text _ _ txt =
   let
     val tmp_name = OS.FileSys.tmpName ();
     val tmp_file = TextIO.openOut tmp_name;
@@ -121,6 +121,10 @@
     result
   end;
 
+(*plain version; with return code*)
+fun system cmd =
+  if OS.Process.system cmd = OS.Process.success then 0 else 1;
+
 
 (* file handling *)
 

--- a/src/Pure/ML-Systems/polyml.ML	Wed Oct 13 19:42:12 1999 +0200
+++ b/src/Pure/ML-Systems/polyml.ML	Wed Oct 13 19:42:46 1999 +0200
@@ -49,7 +49,7 @@
 
 (* ML command execution -- 'eval' *)
 
-fun use_text verbose txt =
+fun use_text print verbose txt =
   let
     val in_buffer = ref (explode txt);
     val out_buffer = ref ([]: string list);
@@ -101,12 +101,11 @@
 fun execute command =
   let
     val (is, os) =  ExtendedIO.execute command;
+    val _ = close_out os;
     val result = input (is, 999999);
-  in
-    close_out os;
-    close_in is;
-    result
-  end;
+  in close_in is; result end;
+
+fun system cmd = (print (execute cmd); 0);	(* FIXME rc not available *)
 
 
 (* file handling *)

--- a/src/Pure/ML-Systems/smlnj-0.93.ML	Wed Oct 13 19:42:12 1999 +0200
+++ b/src/Pure/ML-Systems/smlnj-0.93.ML	Wed Oct 13 19:42:46 1999 +0200
@@ -90,7 +90,7 @@
 
 (* ML command execution *)
 
-fun use_text _ = System.Compile.use_stream o open_string;
+fun use_text _ _ = System.Compile.use_stream o open_string;
 
 
 
@@ -180,6 +180,9 @@
     result
   end;
 
+(*plain version; with return code*)
+fun system cmd = System.system cmd div 256;
+
 
 (* file handling *)
 

--- a/src/Pure/ML-Systems/smlnj.ML	Wed Oct 13 19:42:12 1999 +0200
+++ b/src/Pure/ML-Systems/smlnj.ML	Wed Oct 13 19:42:46 1999 +0200
@@ -80,7 +80,7 @@
 
 (* ML command execution *)
 
-fun use_text verbose txt =
+fun use_text print verbose txt =
   let
     val ref out_orig = Compiler.Control.Print.out;
 
@@ -189,6 +189,9 @@
     result
   end;
 
+(*plain version; with return code*)
+val system = OS.Process.system: string -> int; 
+
 
 (* file handling *)