conf: Add log4cxx path to conf file

refs: #1950

Change-Id: I51f9217c6ee40fd49a53d5f8294b60fb306e82ee
diff --git a/src/logger.hpp b/src/logger.hpp
index 267f30f..2a8e907 100644
--- a/src/logger.hpp
+++ b/src/logger.hpp
@@ -20,6 +20,7 @@
  * \author A K M Mahmudul Hoque <ahoque1@memphis.edu>
  *
  **/
+
 #ifndef NLSR_LOGGER_HPP
 #define NLSR_LOGGER_HPP
 
@@ -49,6 +50,9 @@
 void
 INIT_LOGGERS(const std::string& logDir, const std::string& logLevel);
 
+void
+INIT_LOG4CXX(const std::string& log4cxxConfPath);
+
 bool
 isValidLogLevel(const std::string& logLevel);