diff -aur src4.1.4.old/MED_SRC_4.1.4/src/MEDWrapper/Base/MED_Wrapper.cxx src4.1.4/MED_SRC_4.1.4/src/MEDWrapper/Base/MED_Wrapper.cxx
--- src4.1.4.old/MED_SRC_4.1.4/src/MEDWrapper/Base/MED_Wrapper.cxx	2009-01-14 00:43:54.000000000 +0100
+++ src4.1.4/MED_SRC_4.1.4/src/MEDWrapper/Base/MED_Wrapper.cxx	2009-01-22 01:14:43.000000000 +0100
@@ -40,7 +40,7 @@
   ::TLockProxy(TWrapper* theWrapper):
     myWrapper(theWrapper)
   {
-    boost::detail::thread::lock_ops<TWrapper::TMutex>::lock(myWrapper->myMutex);
+    myWrapper->myMutex.lock();
     INITMSG(MYDEBUG,"TLockProxy() - this -"<<this<<"; myWrapper = "<<myWrapper<<std::endl);
   }
   
@@ -48,7 +48,7 @@
   ::~TLockProxy()
   {
     INITMSG(MYDEBUG,"~TLockProxy() - this -"<<this<<"; myWrapper = "<<myWrapper<<std::endl);
-    boost::detail::thread::lock_ops<TWrapper::TMutex>::unlock(myWrapper->myMutex);
+    myWrapper->myMutex.unlock();
   }
   
   TWrapper*