diff --git a/libstdc++-v3/include/ext/concurrence.h b/libstdc++-v3/include/ext/concurrence.h
index 25e218b..79bf0b6 100644
--- a/libstdc++-v3/include/ext/concurrence.h
+++ b/libstdc++-v3/include/ext/concurrence.h
@@ -143,8 +143,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
   class __mutex 
   {
   private:
-#if __GTHREADS && defined __GTHREAD_MUTEX_INIT \
-    && defined __GXX_EXPERIMENTAL_CXX0X__
+#if __GTHREADS && defined __GTHREAD_MUTEX_INIT
     __gthread_mutex_t _M_mutex = __GTHREAD_MUTEX_INIT;
 #else
     __gthread_mutex_t _M_mutex;
@@ -156,19 +155,10 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
   public:
     __mutex() 
     { 
-#if __GTHREADS
+#if __GTHREADS && ! defined __GTHREAD_MUTEX_INIT
       if (__gthread_active_p())
-	{
-#if defined __GTHREAD_MUTEX_INIT
-# ifndef __GXX_EXPERIMENTAL_CXX0X__
-	  __gthread_mutex_t __tmp = __GTHREAD_MUTEX_INIT;
-	  _M_mutex = __tmp;
-# endif
-#else
-	  __GTHREAD_MUTEX_INIT_FUNCTION(&_M_mutex); 
+	__GTHREAD_MUTEX_INIT_FUNCTION(&_M_mutex);
 #endif
-	}
-#endif 
     }
 
 #if __GTHREADS && ! defined __GTHREAD_MUTEX_INIT
@@ -208,8 +198,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
   class __recursive_mutex 
   {
   private:
-#if __GTHREADS && defined __GTHREAD_RECURSIVE_MUTEX_INIT \
-    && defined __GXX_EXPERIMENTAL_CXX0X__
+#if __GTHREADS && defined __GTHREAD_RECURSIVE_MUTEX_INIT
     __gthread_recursive_mutex_t _M_mutex = __GTHREAD_RECURSIVE_MUTEX_INIT;
 #else
     __gthread_recursive_mutex_t _M_mutex;
@@ -221,19 +210,10 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
   public:
     __recursive_mutex() 
     { 
-#if __GTHREADS
+#if __GTHREADS && ! defined __GTHREAD_RECURSIVE_MUTEX_INIT
       if (__gthread_active_p())
-	{
-#if defined __GTHREAD_RECURSIVE_MUTEX_INIT
-# ifndef __GXX_EXPERIMENTAL_CXX0X__
-	  __gthread_recursive_mutex_t __tmp = __GTHREAD_RECURSIVE_MUTEX_INIT;
-	  _M_mutex = __tmp;
-# endif
-#else
-	  __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION(&_M_mutex); 
+	__GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION(&_M_mutex);
 #endif
-	}
-#endif 
     }
 
 #if __GTHREADS && ! defined __GTHREAD_RECURSIVE_MUTEX_INIT
@@ -333,8 +313,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
   class __cond
   {
   private:
-#if __GTHREADS && defined __GTHREAD_COND_INIT \
-    && defined __GXX_EXPERIMENTAL_CXX0X__
+#if __GTHREADS && defined __GTHREAD_COND_INIT
     __gthread_cond_t _M_cond = __GTHREAD_COND_INIT;
 #else
     __gthread_cond_t _M_cond;
@@ -346,19 +325,10 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
   public:
     __cond() 
     { 
-#if __GTHREADS
+#if __GTHREADS && ! defined __GTHREAD_COND_INIT
       if (__gthread_active_p())
-	{
-#if defined __GTHREAD_COND_INIT
-# ifndef __GXX_EXPERIMENTAL_CXX0X__
-	  __gthread_cond_t __tmp = __GTHREAD_COND_INIT;
-	  _M_cond = __tmp;
-# endif
-#else
-	  __GTHREAD_COND_INIT_FUNCTION(&_M_cond);
+	__GTHREAD_COND_INIT_FUNCTION(&_M_cond);
 #endif
-	}
-#endif 
     }
 
 #if __GTHREADS && ! defined __GTHREAD_COND_INIT
diff --git a/libstdc++-v3/include/ext/rope b/libstdc++-v3/include/ext/rope
index 15cb423..3364f46 100644
--- a/libstdc++-v3/include/ext/rope
+++ b/libstdc++-v3/include/ext/rope
@@ -44,6 +44,8 @@
 #ifndef _ROPE
 #define _ROPE 1
 
+#pragma GCC system_header
+
 #include <algorithm>
 #include <iosfwd>
 #include <bits/stl_construct.h>
@@ -458,7 +460,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
     volatile _RC_t _M_ref_count;
 
     // Constructor
-#if defined __GTHREAD_MUTEX_INIT && defined __GXX_EXPERIMENTAL_CXX0X__
+#ifdef __GTHREAD_MUTEX_INIT
     __gthread_mutex_t _M_ref_count_lock = __GTHREAD_MUTEX_INIT;
 #else
     __gthread_mutex_t _M_ref_count_lock;
@@ -466,16 +468,13 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 
     _Refcount_Base(_RC_t __n) : _M_ref_count(__n), _M_ref_count_lock()
     {
-#ifdef __GTHREAD_MUTEX_INIT
-# ifndef __GXX_EXPERIMENTAL_CXX0X__
-      __gthread_mutex_t __tmp = __GTHREAD_MUTEX_INIT;
-      _M_ref_count_lock = __tmp;
-# endif
-#elif defined(__GTHREAD_MUTEX_INIT_FUNCTION)
+#ifndef __GTHREAD_MUTEX_INIT
+#ifdef __GTHREAD_MUTEX_INIT_FUNCTION
       __GTHREAD_MUTEX_INIT_FUNCTION (&_M_ref_count_lock);
 #else
 #error __GTHREAD_MUTEX_INIT or __GTHREAD_MUTEX_INIT_FUNCTION should be defined by gthr.h abstraction layer, report problem to libstdc++@gcc.gnu.org.
 #endif
+#endif
     }
 
 #ifndef __GTHREAD_MUTEX_INIT