re PR fortran/43832 (OPEN statement not diagnosing missing unit number)

2010-04-24  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR fortran/43832
	* io.c (gfc_match_open): Remove branch to syntax error. Add call to
	gfc_error with new error message.

From-SVN: r158684

gcc/fortran/ChangeLog

+2010-04-24  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
+
+	PR fortran/43832
+	* io.c (gfc_match_open): Remove branch to syntax error. Add call to
+	gfc_error with new error message.
+
 2010-04-24  Paul Thomas  <pault@gcc.gnu.org>
 
 	PR fortran/43841

gcc/fortran/io.c

@@ -1771,8 +1771,6 @@ gfc_match_open (void)
   if (m == MATCH_NO)
     {
       m = gfc_match_expr (&open->unit);
-      if (m == MATCH_NO)
-	goto syntax;
       if (m == MATCH_ERROR)
 	goto cleanup;
     }
@@ -1820,6 +1818,11 @@ gfc_match_open (void)
 	  goto cleanup;
 	}
     }
+  else if (!open->unit)
+    {
+      gfc_error ("OPEN statement at %C must have UNIT or NEWUNIT specified");
+      goto cleanup;
+    }
 
   /* Checks on the ACCESS specifier.  */
   if (open->access && open->access->expr_type == EXPR_CONSTANT)