+/*
+ * Define if your compiler has std::unordered_map
+ */
+#undef HAVE_STD_UNORDERED_MAP
+
+/*
+ * Define if your compiler has std::unordered_set
+ */
+#undef HAVE_STD_UNORDERED_SET
+
+/*
+ * Define if your compiler has std::tr1::unordered_map
+ */
+#undef HAVE_TR1_UNORDERED_MAP
+
+/*
+ * Define if your compiler has std::tr1::unordered_set
+ */
+#undef HAVE_TR1_UNORDERED_SET
+
+/*
+ * Define if the compiler supports simple visibility declarations.
+ */
+#undef HAVE_VISIBILITY
+
+/*
+ * Define if the compiler supports GCC's atomic memory access builtins
+ */
+#undef HAVE_GCC_ATOMIC_BUILTINS
+
+/*
+ * Define if compiler's visibility support in libstdc++ is broken
+ */
+#undef HAVE_BROKEN_LIBSTDCXX_VISIBILITY
+