@@ -2,21 +2,17 @@
 #undef OF_ATOMIC_OPS
 #undef OF_BIG_ENDIAN
 #undef OF_COMPILER_TLS
 #undef OF_FLOAT_BIG_ENDIAN
 #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_PROPERTIES
 #undef OF_HAVE_PTHREADS
 #undef OF_HAVE_PTHREAD_SPINLOCKS
 #undef OF_HAVE_RECURSIVE_PTHREAD_MUTEXES
 #undef OF_HAVE_SCHED_YIELD
 #undef OF_HAVE_SYS_SELECT_H
 #undef OF_OBJFW_RUNTIME
 #undef OF_PLUGINS
 #undef OF_THREADS
 #undef SIZE_MAX