@@ -2,10 +2,11 @@
 #undef OF_HAVE_ASPRINTF
 #undef OF_ATOMIC_OPS
 #undef OF_BIG_ENDIAN
 #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_LIBKERN_OSATOMIC_H
 #undef OF_HAVE_POLL
 #undef OF_HAVE_PROPERTIES