From 338c05388991ccf265e6bab31c66863689424819 Mon Sep 17 00:00:00 2001
From: Peter Dimov <pdimov@gmail.com>
Date: Tue, 5 Mar 2024 19:07:24 +0200
Subject: [PATCH] Fix hash_is_avalanching_test2 for libc++ 16 and later

---
 test/hash_is_avalanching_test2.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/test/hash_is_avalanching_test2.cpp b/test/hash_is_avalanching_test2.cpp
index 7e9e136..8d47834 100644
--- a/test/hash_is_avalanching_test2.cpp
+++ b/test/hash_is_avalanching_test2.cpp
@@ -44,7 +44,11 @@ int main()
 
 #endif
 
+#if defined(_LIBCPP_VERSION) && _LIBCPP_VERSION >= 160000
+// std::char_traits<Ch> is deprecated for non-char types
+#else
     BOOST_TEST_TRAIT_FALSE(( hash_is_avalanching< boost::hash<std::basic_string_view<my_char> > > ));
+#endif
 
     return boost::report_errors();
 }