Index: cpp/logmanager.cpp
===================================================================
--- cpp/logmanager.cpp	(Revision 1623014)
+++ cpp/logmanager.cpp	(Arbeitskopie)
@@ -36,6 +36,7 @@
 
 #include <log4cxx/spi/loggingevent.h>
 #include <log4cxx/file.h>
+#include <log4cxx/helpers/synchronized.h>
 #include <log4cxx/helpers/transcoder.h>
 #if !defined(LOG4CXX)
 #define LOG4CXX 1
@@ -49,9 +50,10 @@
 IMPLEMENT_LOG4CXX_OBJECT(DefaultRepositorySelector)
 
 void * LogManager::guard = 0;
+static Pool repoSelectorMutexPool;
+static Mutex repoSelectorMutex(repoSelectorMutexPool);
 
 
-
 RepositorySelectorPtr& LogManager::getRepositorySelector() {
    //
    //     call to initialize APR and trigger "start" of logging clock
@@ -82,6 +84,7 @@
 
 LoggerRepositoryPtr& LogManager::getLoggerRepository()
 {
+        synchronized sync(repoSelectorMutex);
         if (getRepositorySelector() == 0)
         {
                 LoggerRepositoryPtr hierarchy(new Hierarchy());
Index: include/log4cxx/logmanager.h
===================================================================
--- include/log4cxx/logmanager.h	(Revision 1623014)
+++ include/log4cxx/logmanager.h	(Arbeitskopie)
@@ -25,6 +25,8 @@
 
 #include <log4cxx/logstring.h>
 #include <vector>
+#include <log4cxx/helpers/mutex.h>
+#include <log4cxx/helpers/pool.h>
 #include <log4cxx/spi/repositoryselector.h>
 
 namespace log4cxx
@@ -40,8 +42,8 @@
 
     /**
     * Use the <code>LogManager</code> class to retreive Logger
-    * instances or to operate on the current 
-    * {@link log4cxx::spi::LoggerRepository LoggerRepository}. 
+    * instances or to operate on the current
+    * {@link log4cxx::spi::LoggerRepository LoggerRepository}.
     * When the <code>LogManager</code> class is loaded
     * into memory the default initialization procedure is inititated.
         */