--- TEMPLATES/cxxforward.h.orig	2016-07-08 17:39:15.000000000 +0800
+++ TEMPLATES/cxxforward.h	2026-05-22 06:20:48.000000000 +0800
@@ -28,7 +28,7 @@
 #     define ARB_ENABLE_Cxx11_FEATURES
 // #     define ARB_ENABLE_Cxx14_FEATURES // not needed yet
 #    else
-#     error Unknown C++ standard defined in __cplusplus
+#     define ARB_ENABLE_Cxx11_FEATURES
 #    endif
 #   endif
 #  endif