+/* Without this pragma, gcc 4.7.0 20111124 mistakenly suggests that
+ the proper_name function might be candidate for attribute 'const' */
+#if (__GNUC__ == 4 && 6 <= __GNUC_MINOR__) || 4 < __GNUC__
+# pragma GCC diagnostic ignored "-Wsuggest-attribute=const"
+#endif
+