+
+#if SIZEOF_PID_T == 4
+# define PID_PRI PRIi32
+#elif SIZEOF_PID_T == 2
+# define PID_PRI PRIi16
+#else
+# error Unknown pid_t size
+#endif
+#define PID_FMT "%" PID_PRI
+
+#if SIZEOF_UID_T == 4
+# define UID_FMT "%" PRIu32
+#elif SIZEOF_UID_T == 2
+# define UID_FMT "%" PRIu16
+#else
+# error Unknown uid_t size
+#endif
+
+#if SIZEOF_GID_T == 4
+# define GID_FMT "%" PRIu32
+#elif SIZEOF_GID_T == 2
+# define GID_FMT "%" PRIu16
+#else
+# error Unknown gid_t size
+#endif
+
+#if SIZEOF_TIME_T == 8
+# define PRI_TIME PRIi64
+#elif SIZEOF_TIME_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