1 files changed, 12 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/parse/undefined2.C b/gcc/testsuite/g++.dg/parse/undefined2.C
new file mode 100644
index 000000000..a7e76f1b7
--- /dev/null
+++ b/gcc/testsuite/g++.dg/parse/undefined2.C
@@ -0,0 +1,12 @@
+// PR c++/9173
+// Origin: <wwieser@gmx.de>
+// { dg-do compile }
+
+class A {};
+
+class B
+{
+    void foo(int,A::X); // { dg-error "" }
+};
+
+void B::foo(int,A::X) {} // { dg-error "" }