+#undef NAME_DEV_RANDOM
+#undef HAVE_CRYPT_RNG
+#undef HAVE_BOEHM_GC
+#undef USE_INCLUDED_LIBGC
+#undef DISABLE_SHARED_HANDLES
+#undef HAVE_TIMEZONE
+#undef HAVE_TM_GMTOFF
+#undef MONO_SIZEOF_SUNPATH
+#undef MONO_ZERO_ARRAY_LENGTH
+#undef PTHREAD_POINTER_ID
+#undef HAVE_GC_H
+#undef HAVE_GC_GCJ_MALLOC
+#undef HAVE_GC_ENABLE
+#undef WITH_BUNDLE
+#undef HAVE_GETHOSTBYNAME2_R
+#undef HAVE_ICU
+#undef HAVE_KW_THREAD
+#undef HAVE_SIGNBIT
+#undef USE_MACH_SEMA
+#undef HAVE_SOCKLEN_T
+#undef HAVE_TRUNCL
+#undef HAVE_AINTL
+#undef HAVE_SCANDIR
+#undef HAVE_WORKING_SIGALTSTACK