..., where you currently get:
FAIL: g++.dg/ext/has-feature.C -std=gnu++98 (test for excess errors)
[...]
Minor fix-up for recent commit
06280a906cb3dc80cf5e07cf3335b758848d488d
"c-family: Implement __has_feature and __has_extension [PR60512]".
gcc/testsuite/
* g++.dg/ext/has-feature.C: Adjust for default-'-fno-exceptions',
'-fno-rtti' configurations.
#define CXX11 (__cplusplus >= 201103L)
#define CXX14 (__cplusplus >= 201402L)
-#if !FEAT(cxx_exceptions) || !FEAT(cxx_rtti)
+#if FEAT(cxx_exceptions) != !!__cpp_exceptions
+#error
+#endif
+
+#if FEAT(cxx_rtti) != !!__cpp_rtti
#error
#endif