re PR c++/28559 (ICE with friend and __attribute__)

        PR c++/28559
        * parser.c (cp_parser_elaborated_type_specifier): Also ignore
        attributes applied to a TYPENAME_TYPE.

From-SVN: r116137

gcc/cp/ChangeLog

+2006-08-11  Jason Merrill  <jason@redhat.com>
+
+	PR c++/28559
+	* parser.c (cp_parser_elaborated_type_specifier): Also ignore
+	attributes applied to a TYPENAME_TYPE.
+
 2006-08-09  Lee Millward  <lee.millward@codesourcery.com>
 
-       PR c++/28637
-       * pt.c (coerce_template_parms): Copy across the
-       invalid template arguments to the new template inner arguments.
-       (retrieve_specialization): Robustify.
+	PR c++/28637
+	* pt.c (coerce_template_parms): Copy across the
+	invalid template arguments to the new template inner arguments.
+	(retrieve_specialization): Robustify.
 
-       PR c++/28638
-       * pt.c (coerce_template_template_parms): Robustify.
+	PR c++/28638
+	* pt.c (coerce_template_template_parms): Robustify.
 
-       PR c++/28639
-       * error.c (dump_template_parms): Robustify.
+	PR c++/28639
+	* error.c (dump_template_parms): Robustify.
 
-       PR c++/28640
-       * pt.c (redeclare_class_template): Robustify.
+	PR c++/28640
+	* pt.c (redeclare_class_template): Robustify.
 
-       PR c++/28641
-       * pt.c (type_unification_real): Robustify.
+	PR c++/28641
+	* pt.c (type_unification_real): Robustify.
 	
 2006-08-03  Lee Millward  <lee.millward@codesourcery.com>
 
-       PR c++/28347
-       * decl.c (start_decl): Return error_mark_node if a
-       diagnostic was issed for an invalid typedef initialization.
+	PR c++/28347
+	* decl.c (start_decl): Return error_mark_node if a
+	diagnostic was issed for an invalid typedef initialization.
 	
 2006-08-03  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
 

gcc/cp/parser.c

@@ -10268,8 +10268,11 @@ cp_parser_elaborated_type_specifier (cp_parser* parser,
   /* Allow attributes on forward declarations of classes.  */
   if (attributes)
     {
-      if (tag_type != enum_type && CLASSTYPE_TEMPLATE_INSTANTIATION (type)
-	  && ! processing_explicit_instantiation)
+      if (TREE_CODE (type) == TYPENAME_TYPE)
+	warning (OPT_Wattributes,
+		 "attributes ignored on uninstantiated type");
+      else if (tag_type != enum_type && CLASSTYPE_TEMPLATE_INSTANTIATION (type)
+	       && ! processing_explicit_instantiation)
 	warning (OPT_Wattributes,
 		 "attributes ignored on template instantiation");
       else if (is_declaration && cp_parser_declares_only_class_p (parser))

gcc/testsuite/g++.dg/ext/attrib25.C

+// PR c++/28559
+
+template<typename T> struct A
+{
+  struct B;
+};
+
+struct C
+{
+  template<typename T> friend struct __attribute__((packed)) A<T>::B; // { dg-warning "uninstantiated" }
+};