1 files changed, 10 insertions, 1 deletions

diff --git a/test/SemaCXX/nested-name-spec.cpp b/test/SemaCXX/nested-name-spec.cpp
index 8618f0339bca..8a217b312088 100644
--- a/test/SemaCXX/nested-name-spec.cpp
+++ b/test/SemaCXX/nested-name-spec.cpp
@@ -212,7 +212,7 @@ namespace test1 {
 // non-lexical scope.
 namespace test2 {
   namespace ns {
-    int *count_ptr;
+    extern int *count_ptr;
   }
   namespace {
     int count = 0;
@@ -220,3 +220,12 @@ namespace test2 {
 
   int *ns::count_ptr = &count;
 }
+
+// PR6259, invalid case
+namespace test3 {
+  // FIXME: this should really only trigger once
+  class A; // expected-note 2 {{forward declaration}}
+  void foo(const char *path) {
+    A::execute(path); // expected-error 2 {{incomplete type 'class test3::A' named in nested name specifier}}
+  }
+}