@@ -4,10 +4,11 @@
 #undef OF_GNU_RUNTIME
 #undef OF_HAVE_ASPRINTF
 #undef OF_HAVE_BLOCKS
 #undef OF_HAVE_FAST_ENUMERATION
 #undef OF_HAVE_GCC_ATOMIC_OPS
+#undef OF_HAVE_OPTIONAL_PROTOCOLS
 #undef OF_HAVE_OSATOMIC
 #undef OF_HAVE_OSATOMIC_64
 #undef OF_HAVE_POLL
 #undef OF_HAVE_PROPERTIES
 #undef OF_HAVE_PTHREADS