_available_ realtime signal, not the lowest supported; glibc takes
several for its own use. */
-#ifndef REALTIME_LO
-# if defined(__SIGRTMIN)
-# define REALTIME_LO __SIGRTMIN
-# define REALTIME_HI (__SIGRTMAX + 1)
-# elif defined(SIGRTMIN)
-# define REALTIME_LO SIGRTMIN
-# define REALTIME_HI (SIGRTMAX + 1)
-# endif
+#if defined(__SIGRTMIN)
+# define REALTIME_LO __SIGRTMIN
+# define REALTIME_HI (__SIGRTMAX + 1)
+#elif defined(SIGRTMIN)
+# define REALTIME_LO SIGRTMIN
+# define REALTIME_HI (SIGRTMAX + 1)
#endif
/* This table must match in order and size the signals in enum