re PR fortran/41192 (NAMELIST input with just a comment ("&NAME ! comment \") fails)

2009-09-07  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libgfortran/41192
	* io/list_read.c (eat_line): Enable eat_line to function on
	internal units.

	PR libgfortran/41219
	* io/list_read.c (nml_read_obj): Replace GFC_DTYPE_UNKNOWN with
	BT_NULL to get rid of warning.

From-SVN: r151495

libgfortran/ChangeLog

+2009-09-07  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
+
+	PR libgfortran/41192
+	* io/list_read.c (eat_line): Enable eat_line to function on
+	internal units.
+
+	PR libgfortran/41219
+	* io/list_read.c (nml_read_obj): Replace GFC_DTYPE_UNKNOWN with
+	BT_NULL to get rid of warning.
+	
 2009-09-04  Tobias Burnus  <burnus@net-b.de>
 
 	PR fortran/41219

libgfortran/io/list_read.c

@@ -287,7 +287,7 @@ static void
 eat_line (st_parameter_dt *dtp)
 {
   char c;
-  if (!is_internal_unit (dtp))
+
   do
     c = next_char (dtp);
   while (c != '\n');
@@ -2374,10 +2374,10 @@ nml_read_obj (st_parameter_dt *dtp, namelist_info * nl, index_type offset,
 	  if (dtp->u.p.input_complete)
 	    return SUCCESS;
 
-	  /* GFC_TYPE_UNKNOWN through for nulls and is detected
-	     after the switch block.  */
+	  /* BT_NULL (equivalent to GFC_DTYPE_UNKNOWN) falls through
+	     for nulls and is detected at default: of switch block.  */
 
-	  dtp->u.p.saved_type = GFC_DTYPE_UNKNOWN;
+	  dtp->u.p.saved_type = BT_NULL;
 	  free_saved (dtp);
 
           switch (nl->type)
@@ -2467,7 +2467,7 @@ nml_read_obj (st_parameter_dt *dtp, namelist_info * nl, index_type offset,
 	  return SUCCESS;
 	}
 
-      if (dtp->u.p.saved_type == GFC_DTYPE_UNKNOWN)
+      if (dtp->u.p.saved_type == BT_NULL)
 	{
 	  dtp->u.p.expanded_read = 0;
 	  goto incr_idx;