From 6e6af5fc90c5323cbd5a725bbe3cfef6acd91b55 Mon Sep 17 00:00:00 2001
From: Peter Dimov <pdimov@gmail.com>
Date: Sat, 18 Dec 2021 18:18:19 +0200
Subject: [PATCH] Update sv_common_reference_test to check
 BOOST_NO_CXX20_HDR_CONCEPTS

---
 test/sv_common_reference_test.cpp | 20 +++-----------------
 1 file changed, 3 insertions(+), 17 deletions(-)

diff --git a/test/sv_common_reference_test.cpp b/test/sv_common_reference_test.cpp
index 998e0ae..3a0b444 100644
--- a/test/sv_common_reference_test.cpp
+++ b/test/sv_common_reference_test.cpp
@@ -8,27 +8,14 @@
 #include <boost/config.hpp>
 #include <string>
 
-#if BOOST_CXX_VERSION < 202000L
+#if defined(BOOST_NO_CXX20_HDR_CONCEPTS)
 
-BOOST_PRAGMA_MESSAGE( "Skipping test because BOOST_CXX_VERSION is " BOOST_STRINGIZE(BOOST_CXX_VERSION) )
-int main() {}
-
-#else
-
-#include <version>
-
-#if !defined(__cpp_lib_concepts)
-
-BOOST_PRAGMA_MESSAGE( "Skipping test because __cpp_lib_concepts is not defined" )
-int main() {}
-
-#elif __cpp_lib_concepts < 201907L
-
-BOOST_PRAGMA_MESSAGE( "Skipping test because __cpp_lib_concepts is " BOOST_STRINGIZE(__cpp_lib_concepts) )
+BOOST_PRAGMA_MESSAGE( "Skipping test because BOOST_NO_CXX20_HDR_CONCEPTS is defined" )
 int main() {}
 
 #else
 
+#include <concepts>
 #include <type_traits>
 
 using T = std::common_reference_t< boost::core::string_view&&, std::string& >;
@@ -45,4 +32,3 @@ int main()
 }
 
 #endif
-#endif