From f6c71a6aa6e71a5dde50a13377d8ebd1a41aa9ab Mon Sep 17 00:00:00 2001
From: jason <jason@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Wed, 25 May 2011 15:26:25 +0000
Subject: [PATCH] 	PR c++/45080
 	* pt.c (instantiate_class_template_1): Call maybe_add_lambda_conv_op.
 	* semantics.c (lambda_function): Check COMPLETE_OR_OPEN_TYPE_P.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_6-branch@174208 138bc75d-0d04-0410-961f-82ee72b054a4

index d379a8c..c5f2422 100644
--- a/gcc/cp/pt.c
+++ b/gcc/cp/pt.c
@@ -8557,6 +8557,9 @@ instantiate_class_template (tree type)
 	}
     }
 
+  if (CLASSTYPE_LAMBDA_EXPR (type))
+    maybe_add_lambda_conv_op (type);
+
   /* Set the file and line number information to whatever is given for
      the class itself.  This puts error messages involving generated
      implicit functions at a predictable point, and the same point
diff --git a/gcc/cp/semantics.c b/gcc/cp/semantics.c
index 6207b12..b113626 100644
--- a/gcc/cp/semantics.c
+++ b/gcc/cp/semantics.c
@@ -8086,7 +8086,8 @@ lambda_function (tree lambda)
     type = lambda;
   gcc_assert (LAMBDA_TYPE_P (type));
   /* Don't let debug_tree cause instantiation.  */
-  if (CLASSTYPE_TEMPLATE_INSTANTIATION (type) && !COMPLETE_TYPE_P (type))
+  if (CLASSTYPE_TEMPLATE_INSTANTIATION (type)
+      && !COMPLETE_OR_OPEN_TYPE_P (type))
     return NULL_TREE;
   lambda = lookup_member (type, ansi_opname (CALL_EXPR),
 			  /*protect=*/0, /*want_type=*/false);
new file mode 100644
index 0000000..53d8e99
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp0x/lambda/lambda-conv5.C
@@ -0,0 +1,15 @@
+// PR c++/45080
+// { dg-options -std=c++0x }
+
+typedef void(*pfn)();
+
+template<typename=int>
+void f()
+{
+  pfn fn = []{};
+}
+
+void test()
+{
+  f();
+}
-- 
1.7.0.4