diff --git a/nsprpub/pr/include/private/primpl.h b/nsprpub/pr/include/private/primpl.h
index ea4f5070e4b..3bdf038033b 100644
--- a/nsprpub/pr/include/private/primpl.h
+++ b/nsprpub/pr/include/private/primpl.h
@@ -158,6 +158,7 @@ struct _PT_Notified
 #define PT_THREAD_GCABLE    0x20    /* thread is garbage collectible */
 #define PT_THREAD_SUSPENDED 0x40    /* thread has been suspended */
 #define PT_THREAD_FOREIGN   0x80    /* thread is not one of ours */
+#define PT_THREAD_BOUND     0x100    /* a bound-global thread */
 
 /* 
 ** Possible values for thread's suspend field
diff --git a/nsprpub/pr/include/prthread.h b/nsprpub/pr/include/prthread.h
index c9ff0bced55..7d132508c03 100644
--- a/nsprpub/pr/include/prthread.h
+++ b/nsprpub/pr/include/prthread.h
@@ -71,7 +71,8 @@ typedef enum PRThreadType {
 
 typedef enum PRThreadScope {
     PR_LOCAL_THREAD,
-    PR_GLOBAL_THREAD
+    PR_GLOBAL_THREAD,
+    PR_GLOBAL_BOUND_THREAD
 } PRThreadScope;
 
 typedef enum PRThreadState {
diff --git a/nsprpub/pr/src/md/unix/solaris.c b/nsprpub/pr/src/md/unix/solaris.c
index 882cbca48d9..439cb94f70b 100644
--- a/nsprpub/pr/src/md/unix/solaris.c
+++ b/nsprpub/pr/src/md/unix/solaris.c
@@ -200,7 +200,8 @@ PRStatus _MD_CreateThread(PRThread *thread,
      *   when the corresponding NSPR threads terminate.  
      */
     flags = THR_SUSPENDED|THR_DETACHED;
-    if (thread->flags & (_PR_GCABLE_THREAD|_PR_BOUND_THREAD))
+    if ((thread->flags & (_PR_GCABLE_THREAD|_PR_BOUND_THREAD)) ||
+    							(scope == PR_GLOBAL_BOUND_THREAD))
 		flags |= THR_BOUND;
 
     if (thr_create(NULL, thread->stack->stackSize,
@@ -219,8 +220,8 @@ PRStatus _MD_CreateThread(PRThread *thread,
     thr_sigsetmask(SIG_SETMASK, &oldset, NULL); 
     _MD_NEW_SEM(&thread->md.waiter_sem, 0);
 
-    if (scope == PR_GLOBAL_THREAD) {
-	thread->flags |= _PR_GLOBAL_SCOPE;
+    if ((scope == PR_GLOBAL_THREAD) || (scope == PR_GLOBAL_BOUND_THREAD)) {
+		thread->flags |= _PR_GLOBAL_SCOPE;
     }
 
     _MD_SET_PRIORITY(&(thread->md), priority);
diff --git a/nsprpub/pr/src/md/unix/unixware.c b/nsprpub/pr/src/md/unix/unixware.c
index 76c9c751fb0..b6c4de77e82 100644
--- a/nsprpub/pr/src/md/unix/unixware.c
+++ b/nsprpub/pr/src/md/unix/unixware.c
@@ -256,7 +256,8 @@ PRStatus _MD_CREATE_THREAD(PRThread *thread,
 
     flags = (state == PR_JOINABLE_THREAD ? THR_SUSPENDED/*|THR_NEW_LWP*/ 
 			   : THR_SUSPENDED|THR_DETACHED/*|THR_NEW_LWP*/);
-	if (thread->flags & _PR_GCABLE_THREAD)
+	if ((thread->flags & _PR_GCABLE_THREAD) ||
+							(scope == PR_GLOBAL_BOUND_THREAD))
 		flags |= THR_BOUND;
 
     if (thr_create(NULL, thread->stack->stackSize,
@@ -276,8 +277,8 @@ PRStatus _MD_CREATE_THREAD(PRThread *thread,
     thr_sigsetmask(SIG_SETMASK, &oldset, NULL); 
     _MD_NEW_SEM(&thread->md.waiter_sem, 0);
 
-    if (scope == PR_GLOBAL_THREAD) {
-	thread->flags |= _PR_GLOBAL_SCOPE;
+	if ((scope == PR_GLOBAL_THREAD) || (scope == PR_GLOBAL_BOUND_THREAD)) {
+		thread->flags |= _PR_GLOBAL_SCOPE;
     }
 
     /* 
diff --git a/nsprpub/pr/src/pthreads/ptthread.c b/nsprpub/pr/src/pthreads/ptthread.c
index 10f6112ec56..d69220c6ff5 100644
--- a/nsprpub/pr/src/pthreads/ptthread.c
+++ b/nsprpub/pr/src/pthreads/ptthread.c
@@ -311,6 +311,8 @@ static PRThread* _PR_CreateThread(
             thred->state |= PT_THREAD_DETACHED;
         if (PR_GLOBAL_THREAD == scope)
             thred->state |= PT_THREAD_GLOBAL;
+        if (PR_GLOBAL_BOUND_THREAD == scope)
+            thred->state |= (PT_THREAD_GLOBAL | PT_THREAD_BOUND);
         if (PR_SYSTEM_THREAD == type)
             thred->state |= PT_THREAD_SYSTEM;
 
@@ -339,6 +341,9 @@ static PRThread* _PR_CreateThread(
         else pt_book.user += 1;
         PR_Unlock(pt_book.ml);
 
+        if (thred->state & PT_THREAD_BOUND) {
+    		rv = pthread_attr_setscope(&tattr, PTHREAD_SCOPE_SYSTEM);
+		}
         /*
          * We pass a pointer to a local copy (instead of thred->id)
          * to pthread_create() because who knows what wacky things
@@ -518,7 +523,8 @@ PR_IMPLEMENT(PRThread*) PR_GetCurrentThread()
 
 PR_IMPLEMENT(PRThreadScope) PR_GetThreadScope(const PRThread *thred)
 {
-    return PR_GLOBAL_THREAD;
+    return (thred->state & PT_THREAD_BOUND) ?
+        PR_GLOBAL_BOUND_THREAD : PR_GLOBAL_THREAD;
 }  /* PR_GetThreadScope() */
 
 PR_IMPLEMENT(PRThreadType) PR_GetThreadType(const PRThread *thred)
diff --git a/nsprpub/pr/src/threads/combined/pruthr.c b/nsprpub/pr/src/threads/combined/pruthr.c
index 94cd9071e2c..d279d791b5a 100644
--- a/nsprpub/pr/src/threads/combined/pruthr.c
+++ b/nsprpub/pr/src/threads/combined/pruthr.c
@@ -1088,10 +1088,15 @@ PR_IMPLEMENT(PRThread*) _PR_CreateThread(PRThreadType type,
         me = _PR_MD_CURRENT_THREAD();
 
 #if    defined(_PR_GLOBAL_THREADS_ONLY)
-    scope = PR_GLOBAL_THREAD;
+	/*
+	 * can create global threads only
+	 */
+    if (scope == PR_LOCAL_THREAD)
+    	scope = PR_GLOBAL_THREAD;
 #endif
 
-    native = ((scope == PR_GLOBAL_THREAD) && _PR_IS_NATIVE_THREAD_SUPPORTED());
+    native = (((scope == PR_GLOBAL_THREAD)|| (scope == PR_GLOBAL_BOUND_THREAD))
+							&& _PR_IS_NATIVE_THREAD_SUPPORTED());
 
     _PR_ADJUST_STACKSIZE(stackSize);
 
diff --git a/nsprpub/pr/src/threads/prcthr.c b/nsprpub/pr/src/threads/prcthr.c
index 4f1c35a58e2..288b3fd2430 100644
--- a/nsprpub/pr/src/threads/prcthr.c
+++ b/nsprpub/pr/src/threads/prcthr.c
@@ -403,9 +403,10 @@ PR_IMPLEMENT(PRThreadScope) PR_GetThreadScope(const PRThread *thread)
 #endif
     if (!_pr_initialized) _PR_ImplicitInitialization();
 
-    if (_PR_IS_NATIVE_THREAD(thread))
-        return PR_GLOBAL_THREAD;
-    else
+    if (_PR_IS_NATIVE_THREAD(thread)) {
+    	return (thread->flags & _PR_BOUND_THREAD) ? PR_GLOBAL_BOUND_THREAD :
+										PR_GLOBAL_THREAD;
+    } else
         return PR_LOCAL_THREAD;
 }