+#if SIZEOF_TIME_T == 8
+# define PRI_TIME PRIu64
+#elif SIZEOF_GID_T == 4
+# define PRI_TIME PRIu32
+#else
+# error Unknown time_t size
+#endif
+
+#if SIZEOF_RLIM_T == 8
+# define RLIM_FMT "%" PRIu64
+#elif SIZEOF_RLIM_T == 4
+# define RLIM_FMT "%" PRIu32
+#else
+# error Unknown rlim_t size
+#endif
+