2008-08-18 Joel Sherrill <joel.sherrill@oarcorp.com>

	* itron/include/rtems/itron/task.h, itron/src/def_cyc.c,
	itron/src/task.c, libcsupport/src/newlibc_exit.c,
	libcsupport/src/sync.c, libfs/src/imfs/imfs_fchmod.c,
	posix/include/rtems/posix/pthread.h, posix/src/pthread.c,
	posix/src/sysconf.c, rtems/include/rtems/rtems/tasks.h,
	rtems/src/tasks.c, score/include/rtems/score/stack.h,
	score/inline/rtems/score/stack.inl,
	score/inline/rtems/score/thread.inl, score/src/threadhandler.c: Fix
	various nested-externs warnings.

4 files changed, 21 insertions, 11 deletions

diff --git a/cpukit/score/include/rtems/score/stack.h b/cpukit/score/include/rtems/score/stack.h
index a4ed0a74bc..758ad36c38 100644
--- a/cpukit/score/include/rtems/score/stack.h
+++ b/cpukit/score/include/rtems/score/stack.h
@@ -48,6 +48,13 @@ typedef struct {
   void       *area;
 }   Stack_Control;
 
+/**
+ *  This variable contains the the minimum stack size;
+ *
+ *  @note It is instantiated and set by User Configuration via confdefs.h.
+ */
+extern uint32_t rtems_minimum_stack_size;
+
 #ifndef __RTEMS_APPLICATION__
 #include <rtems/score/stack.inl>
 #endif
diff --git a/cpukit/score/inline/rtems/score/stack.inl b/cpukit/score/inline/rtems/score/stack.inl
index 7726cf1a05..b7fb538747 100644
--- a/cpukit/score/inline/rtems/score/stack.inl
+++ b/cpukit/score/inline/rtems/score/stack.inl
@@ -47,7 +47,6 @@ RTEMS_INLINE_ROUTINE void _Stack_Initialize (
  */
 RTEMS_INLINE_ROUTINE uint32_t _Stack_Minimum (void)
 {
-  extern uint32_t rtems_minimum_stack_size;
   return rtems_minimum_stack_size;
 }
 
diff --git a/cpukit/score/inline/rtems/score/thread.inl b/cpukit/score/inline/rtems/score/thread.inl
index d790b4d9c4..ca692aa8a9 100644
--- a/cpukit/score/inline/rtems/score/thread.inl
+++ b/cpukit/score/inline/rtems/score/thread.inl
@@ -150,15 +150,19 @@ RTEMS_INLINE_ROUTINE void _Thread_Deallocate_fp( void )
 #if defined(RTEMS_HEAVY_STACK_DEBUG) || defined(RTEMS_HEAVY_MALLOC_DEBUG)
   #include <rtems/bspIo.h>
   #include <rtems/fatal.h>
+  #include <rtems/stackchk.h>
   #include <rtems/score/sysstate.h>
   #include <rtems/score/heap.h>
+
+  /*
+   * This is currently not defined in any .h file, so we have to
+   * extern it here.
+   */
+  extern Heap_Control  RTEMS_Malloc_Heap;
 #endif
 
 RTEMS_INLINE_ROUTINE void _Thread_Disable_dispatch( void )
 {
-  extern boolean rtems_stack_checker_is_blown( void );
-  extern void malloc_walk(size_t, size_t);
-
   /*
    *  This check is very brutal to system performance but is very helpful
    *  at finding blown stack problems.  If you have a stack problem and
@@ -184,7 +188,6 @@ RTEMS_INLINE_ROUTINE void _Thread_Disable_dispatch( void )
    */
   #if defined(RTEMS_HEAVY_MALLOC_DEBUG)
     if ( _Thread_Dispatch_disable_level == 1 ) {
-      extern Heap_Control  RTEMS_Malloc_Heap;
       _Heap_Walk( &RTEMS_Malloc_Heap,99, FALSE );
     }
   #endif
diff --git a/cpukit/score/src/threadhandler.c b/cpukit/score/src/threadhandler.c
index 187ec62f39..22c9f141cc 100644
--- a/cpukit/score/src/threadhandler.c
+++ b/cpukit/score/src/threadhandler.c
@@ -34,6 +34,13 @@
 #include <stdlib.h> /* for atexit() */
 #endif
 
+#if defined(__USE_INIT_FINI__)
+  extern void _init(void);
+#endif
+#if defined(__USE__MAIN__)
+  extern void _main(void);
+#endif
+
 /*PAGE
  *
  *  _Thread_Handler
@@ -70,12 +77,6 @@ void _Thread_Handler( void )
   static char doneConstructors;
   char doneCons;
 #endif
-#if defined(__USE_INIT_FINI__)
-  extern void _init(void);
-#endif
-#if defined(__USE__MAIN__)
-  extern void _main(void);
-#endif
 
   executing = _Thread_Executing;