1 files changed, 5 insertions, 3 deletions
diff --git a/libcxx/test/std/strings/basic.string/string.modifiers/string_append/pointer.pass.cpp b/libcxx/test/std/strings/basic.string/string.modifiers/string_append/pointer.pass.cpp
index 5881ef1e04c4..cb8897a540e5 100644
--- a/libcxx/test/std/strings/basic.string/string.modifiers/string_append/pointer.pass.cpp
+++ b/libcxx/test/std/strings/basic.string/string.modifiers/string_append/pointer.pass.cpp
@@ -6,9 +6,11 @@
 //
 //===----------------------------------------------------------------------===//
 
+// XFAIL: LIBCXX-AIX-FIXME
+
 // <string>
 
-// basic_string<charT,traits,Allocator>& append(const charT* s);
+// basic_string<charT,traits,Allocator>& append(const charT* s); // constexpr since C++20
 
 #include <string>
 #include <stdexcept>
@@ -26,7 +28,7 @@ test(S s, const typename S::value_type* str, S expected)
     assert(s == expected);
 }
 
-bool test() {
+TEST_CONSTEXPR_CXX20 bool test() {
   {
     typedef std::string S;
     test(S(), "", S());
@@ -83,7 +85,7 @@ int main(int, char**)
 {
   test();
 #if TEST_STD_VER > 17
-  // static_assert(test());
+  static_assert(test());
 #endif
 
   return 0;