Check in LLVM r95781.
diff --git a/test/SemaTemplate/variadic-unsupported.cpp b/test/SemaTemplate/variadic-unsupported.cpp
new file mode 100644
index 0000000..9f2b080
--- /dev/null
+++ b/test/SemaTemplate/variadic-unsupported.cpp
@@ -0,0 +1,5 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s
+
+// Type parameter packs.
+template <typename ... > struct T1 {}; // expected-error{{variadic templates are only allowed in C++0x}}
+