configure.in: Add rtems as a supported thread model.

        * configure.in: Add rtems as a supported thread model.
        * gthr-rtems.h: Add missing entry point __gthread_active_p.
        * configure: Rebuilt.

From-SVN: r44324

gcc/ChangeLog

+2001-07-24  Joel Sherrill <joel@OARcorp.com>
+
+	* configure.in: Add rtems as a supported thread model.
+	* gthr-rtems.h: Add missing entry point __gthread_active_p.
+	* configure: Rebuilt.
+
 2001-07-24  Lars Brinkhoff  <lars@nocrew.org>
 
 	* stor-layout.c (get_mode_alignment): make it work when

gcc/configure.in

@@ -289,7 +289,7 @@ case x${enable_threads_flag} in
 		target_thread_file=''
 		;;
 	xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
-	xsolaris | xwin32 | xdce | xvxworks | xaix)
+	xsolaris | xwin32 | xdce | xrtems| xvxworks | xaix)
 		target_thread_file=$enable_threads_flag
 		;;
 	*)

gcc/gthr-rtems.h

@@ -62,6 +62,13 @@ extern int rtems_gxx_mutex_trylock (__gthread_mutex_t *mutex);
 extern int rtems_gxx_mutex_unlock (__gthread_mutex_t *mutex);
 
 
+/* RTEMS threading is always active */
+static inline int
+__gthread_active_p (void)
+{
+  return 1;
+}
+
 /* Wrapper calls */
 static inline int
 __gthread_once (__gthread_once_t *once, void (*func) ())