re PR c++/53821 ([c++11] multiple definitions of lambda)

	PR c++/53821
	* semantics.c (maybe_add_lambda_conv_op): Don't set
	DECL_INTERFACE_KNOWN.

From-SVN: r189175

gcc/cp/ChangeLog

 2012-07-02  Jason Merrill  <jason@redhat.com>
 
+	PR c++/53821
+	* semantics.c (maybe_add_lambda_conv_op): Don't set
+	DECL_INTERFACE_KNOWN.
+
 	PR c++/53524
 	* call.c (build_conditional_expr_1): Don't warn about comparison of
 	two enumerators before their enumeration is complete.

gcc/cp/semantics.c

@@ -9336,8 +9336,6 @@ maybe_add_lambda_conv_op (tree type)
   DECL_NOT_REALLY_EXTERN (fn) = 1;
   DECL_DECLARED_INLINE_P (fn) = 1;
   DECL_ARGUMENTS (fn) = build_this_parm (fntype, TYPE_QUAL_CONST);
-  if (nested)
-    DECL_INTERFACE_KNOWN (fn) = 1;
 
   add_method (type, fn, NULL_TREE);
 
@@ -9368,8 +9366,6 @@ maybe_add_lambda_conv_op (tree type)
   DECL_ARGUMENTS (fn) = copy_list (DECL_CHAIN (DECL_ARGUMENTS (callop)));
   for (arg = DECL_ARGUMENTS (fn); arg; arg = DECL_CHAIN (arg))
     DECL_CONTEXT (arg) = fn;
-  if (nested)
-    DECL_INTERFACE_KNOWN (fn) = 1;
 
   add_method (type, fn, NULL_TREE);
 

gcc/testsuite/ChangeLog

 2012-07-02  Jason Merrill  <jason@redhat.com>
 
+	PR c++/53821
+	* g++.dg/cpp0x/lambda/lambda-template6.C: New.
+
 	PR c++/53524
 	* g++.dg/template/enum7.C: New.
 	* g++.dg/other/ptrmem10.C: Adjust.

gcc/testsuite/g++.dg/cpp0x/lambda/lambda-template6.C

+// PR c++/53821
+// { dg-final { scan-assembler-not "_ZZ1fIvEvvENKUlvE_cvPFvvEEv" } }
+// { dg-do compile { target c++11 } }
+
+template <class T> void f()
+{
+  auto g = []{};
+  g();
+}
+
+int main()
+{
+  f<void>();
+}