PR c++/78124 - list-initialization and inherited ctor

	* name-lookup.c (do_class_using_decl): Set CLASSTYPE_NON_AGGREGATE.

From-SVN: r242563

gcc/cp/ChangeLog

 2016-11-17  Jason Merrill  <jason@redhat.com>
 
+	PR c++/78124 - list-initialization and inherited ctor
+	* name-lookup.c (do_class_using_decl): Set CLASSTYPE_NON_AGGREGATE.
+
 	PR c++/78369 - {} as default argument
 	* call.c (build_special_member_call): Handle CONSTRUCTOR.
 

gcc/cp/cp-tree.h

@@ -5707,7 +5707,6 @@ extern bool type_has_user_nondefault_constructor (tree);
 extern tree in_class_defaulted_default_constructor (tree);
 extern bool user_provided_p			(tree);
 extern bool type_has_user_provided_constructor  (tree);
-extern bool type_has_user_provided_or_explicit_constructor  (tree);
 extern bool type_has_non_user_provided_default_constructor (tree);
 extern bool vbase_has_user_provided_move_assign (tree);
 extern tree default_init_uninitialized_part (tree);

gcc/cp/name-lookup.c

@@ -3382,6 +3382,7 @@ do_class_using_decl (tree scope, tree name)
     {
       maybe_warn_cpp0x (CPP0X_INHERITING_CTORS);
       name = ctor_identifier;
+      CLASSTYPE_NON_AGGREGATE (current_class_type) = true;
     }
   if (constructor_name_p (name, current_class_type))
     {

gcc/testsuite/g++.dg/cpp0x/inh-ctor23.C

+// PR c++/78124
+// { dg-do compile { target c++11 } }
+
+struct base {
+    explicit constexpr base(int&&) {}
+};
+
+struct derived: base {
+    using base::base;
+};
+
+int main()
+{
+    derived d { 0 };
+}
+