1 files changed, 2 insertions, 2 deletions
diff --git a/data/glr.c b/data/glr.c
index 08d4a3e6..8cd6baf5 100644
--- a/data/glr.c
+++ b/data/glr.c
@@ -635,8 +635,8 @@ yytnamerr (char *yyres, const char *yystr)
             if (*++yyp != '\\')
               goto do_not_strip_quotes;
             /* Fall through.  */
-#if defined(__has_cpp_attribute) && __has_cpp_attribute(clang::fallthrough)
-            [[clang::fallthrough]];
+#ifdef __cplusplus
+            [[fallthrough]];
 #endif
           default:
             if (yyres)