1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/template/error17.C b/gcc/testsuite/g++.dg/template/error17.C
new file mode 100644
index 000000000..f34234da7
--- /dev/null
+++ b/gcc/testsuite/g++.dg/template/error17.C
@@ -0,0 +1,10 @@
+// PR c++/20153
+
+template <typename T>
+void
+foo()
+{
+  union { struct { }; }; // { dg-error "prohibits anonymous struct" "anon" }
+  // { dg-error "not inside" "not inside" { target *-*-* } 7 }
+  // { dg-warning "no members" "no members" { target *-*-* } 7 }
+}