c-commom.c (c_apply_type_quals_to_decl): REFERENCE_TYPES are always TREE_READONLY.

	* c-commom.c (c_apply_type_quals_to_decl): REFERENCE_TYPES are
	always TREE_READONLY.

From-SVN: r33500

gcc/ChangeLog

+2000-04-27  Mark Mitchell  <mark@codesourcery.com>
+
+	* c-commom.c (c_apply_type_quals_to_decl): REFERENCE_TYPES are
+	always TREE_READONLY.
+
 2000-04-27  Ulrich Drepper  <drepper@cygnus.com>
 
 	* i386.h (FUNCTION_BLOCK_PROFILER_EXIT): Generate mem reference

gcc/c-common.c

@@ -3217,7 +3217,9 @@ c_apply_type_quals_to_decl (type_quals, decl)
      int type_quals;
      tree decl;
 {
-  if (type_quals & TYPE_QUAL_CONST)
+  if ((type_quals & TYPE_QUAL_CONST)
+      || (TREE_TYPE (decl) 
+	  && TREE_CODE (TREE_TYPE (decl)) == REFERENCE_TYPE))
     TREE_READONLY (decl) = 1;
   if (type_quals & TYPE_QUAL_VOLATILE)
     {