--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/g++.dg/template/error52.C	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,19 @@
+// PR c++/16128
+
+template<typename T>
+struct A {
+    };
+
+namespace H {
+    template<typename T>
+    struct B {};
+    }
+
+A a;             // { dg-error "template|no match" }
+H::B b;          // { dg-error "template|no match" }
+
+int main() {
+    A a;         // { dg-error "template|no match" }
+    H::B b;      // { dg-error "template|no match" }
+    return 0;
+    }