diff -ru linuxthreads-2.2.5-orig/sysdeps/pthread/posix-timer.h linuxthreads-2.2.5-timer-mods/sysdeps/pthread/posix-timer.h
--- linuxthreads-2.2.5-orig/sysdeps/pthread/posix-timer.h	Mon Jun 19 20:32:05 2000
+++ linuxthreads-2.2.5-timer-mods/sysdeps/pthread/posix-timer.h	Mon Apr  8 10:54:19 2002
@@ -65,6 +65,7 @@
   struct thread_node *thread;
   pid_t creator_pid;
   int refcount;
+  int overrun_count;
 };
 
 
diff -ru linuxthreads-2.2.5-orig/sysdeps/pthread/timer_getoverr.c linuxthreads-2.2.5-timer-mods/sysdeps/pthread/timer_getoverr.c
--- linuxthreads-2.2.5-orig/sysdeps/pthread/timer_getoverr.c	Tue Apr 24 09:29:35 2001
+++ linuxthreads-2.2.5-timer-mods/sysdeps/pthread/timer_getoverr.c	Mon Apr  8 10:55:00 2002
@@ -37,7 +37,7 @@
   if (! timer_valid (timer = timer_id2ptr (timerid)))
     __set_errno (EINVAL);
   else
-    retval = 0; /* TODO: overrun counting not supported */
+    retval = timer->overrun_count;
 
   pthread_mutex_unlock (&__timer_mutex);
 
diff -ru linuxthreads-2.2.5-orig/sysdeps/pthread/timer_routines.c linuxthreads-2.2.5-timer-mods/sysdeps/pthread/timer_routines.c
--- linuxthreads-2.2.5-orig/sysdeps/pthread/timer_routines.c	Sat Apr 21 16:42:42 2001
+++ linuxthreads-2.2.5-timer-mods/sysdeps/pthread/timer_routines.c	Mon Apr  8 15:48:56 2002
@@ -413,8 +413,16 @@
 	      if (__builtin_expect (timer->value.it_interval.tv_sec, 0) != 0
 		  || timer->value.it_interval.tv_nsec != 0)
 		{
-		  timespec_add (&timer->expirytime, &now,
-				&timer->value.it_interval);
+		  timer->overrun_count = 0;
+		  timespec_add (&timer->expirytime, &timer->expirytime,
+			&timer->value.it_interval); // i++ equivalent
+		  while (timespec_compare(&timer->expirytime, &now) < 0) {
+		    timespec_add (&timer->expirytime, &timer->expirytime,
+		    	  &timer->value.it_interval);
+		    if (timer->overrun_count < _POSIX_DELAYTIMER_MAX) {
+		    	timer->overrun_count++;
+		    }
+		  }
 		  __timer_thread_queue_timer (self, timer);
 		}