Merge pull request #480 from boostorg/479

Ignore c2y-extensions warning with Clang >= 22

Author: mborland

include/boost/test/unit_test_suite.hpp

@@ -348,6 +348,11 @@ typedef ::boost::unit_test::ut_detail::nil_t BOOST_AUTO_TEST_CASE_FIXTURE;
 // **************   Auto registration facility helper macros   ************** //
 // ************************************************************************** //
 
+#if defined(__clang__) && __clang_major__ >= 22
+#  pragma clang diagnostic push
+#  pragma clang diagnostic ignored "-Wc2y-extensions"
+#endif
+
 // Facility for having a unique name based on __LINE__ and __COUNTER__ (later if available)
 #if defined(__COUNTER__)
   #define BOOST_TEST_INTERNAL_HAS_COUNTER
@@ -364,6 +369,10 @@ typedef ::boost::unit_test::ut_detail::nil_t BOOST_AUTO_TEST_CASE_FIXTURE;
 #endif
 /**/
 
+#if defined(__clang__) && __clang_major__ >= 22
+#  pragma clang diagnostic pop
+#endif
+
 #define BOOST_AUTO_TU_REGISTRAR( test_name )                       \
 static boost::unit_test::ut_detail::auto_test_unit_registrar       \
 BOOST_TEST_APPEND_UNIQUE_ID( BOOST_JOIN( test_name, _registrar ) ) BOOST_ATTRIBUTE_UNUSED \