diff --git a/cpukit/ChangeLog b/cpukit/ChangeLog
index 4f4f1f9391..9d3dea1573 100644
--- a/cpukit/ChangeLog
+++ b/cpukit/ChangeLog
@@ -1,3 +1,10 @@
+2008-08-07	Joel Sherrill <joel.sherrill@OARcorp.com>
+
+	* score/include/rtems/score/sysstate.h,
+	score/inline/rtems/score/sysstate.inl, score/src/thread.c: Make
+	_System_state_Is_multiprocessing unused when multiprocessing is not
+	enabled. Saves one more variable from single processor configuration.
+
 2008-08-07      Chris Johns <chrisj@rtems.org>
 
 	* libcsupport/src/_rename_r.c: Fixed return code bug. Add a check
diff --git a/cpukit/score/include/rtems/score/sysstate.h b/cpukit/score/include/rtems/score/sysstate.h
index fa53602688..31b1eab084 100644
--- a/cpukit/score/include/rtems/score/sysstate.h
+++ b/cpukit/score/include/rtems/score/sysstate.h
@@ -64,11 +64,13 @@ typedef enum {
 /** This defines the highest value system state. */
 #define SYSTEM_STATE_CODES_LAST  SYSTEM_STATE_FAILED
 
+#if defined(RTEMS_MULTIPROCESSING)
 /**
  *  The following variable indicates whether or not this is
  *  an multiprocessing system.
  */
 SCORE_EXTERN boolean _System_state_Is_multiprocessing;
+#endif
 
 /**
  *  The following variable contains the current system state.
diff --git a/cpukit/score/inline/rtems/score/sysstate.inl b/cpukit/score/inline/rtems/score/sysstate.inl
index a786c40476..28e59c0416 100644
--- a/cpukit/score/inline/rtems/score/sysstate.inl
+++ b/cpukit/score/inline/rtems/score/sysstate.inl
@@ -33,7 +33,9 @@ RTEMS_INLINE_ROUTINE void _System_state_Handler_initialization (
 )
 {
   _System_state_Current = SYSTEM_STATE_BEFORE_INITIALIZATION;
-  _System_state_Is_multiprocessing = is_multiprocessing;
+  #if defined(RTEMS_MULTIPROCESSING)
+    _System_state_Is_multiprocessing = is_multiprocessing;
+  #endif
 }
  
 /**
diff --git a/cpukit/score/src/thread.c b/cpukit/score/src/thread.c
index a8032598d2..31e1d31b86 100644
--- a/cpukit/score/src/thread.c
+++ b/cpukit/score/src/thread.c
@@ -99,7 +99,11 @@ void _Thread_Handler_initialization(
     &_Thread_Internal_information,
     OBJECTS_INTERNAL_API,
     OBJECTS_INTERNAL_THREADS,
+#if defined(RTEMS_MULTIPROCESSING)
     ( _System_state_Is_multiprocessing ) ?  2 : 1,
+#else
+    1,
+#endif
     sizeof( Thread_Control ),
                                 /* size of this object's control block */
     TRUE,                       /* TRUE if names for this object are strings */