Apply patch from ebuild file to fix toString

include/dbus-c++/eventloop-integration.h

 /*
  *
  *  D-Bus++ - C++ bindings for D-Bus
  *
  *  Copyright (C) 2005-2007  Paolo Durante <shackan@gmail.com>
  *
  *
  *  This library is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Lesser General Public
  *  License as published by the Free Software Foundation; either
  *  version 2.1 of the License, or (at your option) any later version.
  *
  *  This library is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  *  Lesser General Public License for more details.
  *
  *  You should have received a copy of the GNU Lesser General Public
  *  License along with this library; if not, write to the Free Software
  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  *
  */
 
 
 #ifndef __DBUSXX_EVENTLOOP_INTEGRATION_H
 #define __DBUSXX_EVENTLOOP_INTEGRATION_H
 
 #include <errno.h>
+#include <string.h>
 #include "api.h"
 #include "dispatcher.h"
 #include "util.h"
 #include "eventloop.h"
 
 namespace DBus {
 
 /* 
  * Glue between the event loop and the DBus library
  */
@@ skipping 22 matching lines @@
 {
 public:
 
         int _pipe[2];
 
         BusDispatcher() : _running(false)
         {
                 //pipe to create a new fd used to unlock a dispatcher at any
     // moment (used by leave function)
                 int ret = pipe(_pipe);
-                if (ret == -1) throw Error("PipeError:errno", toString(errno).c_str());
-    
+                if (ret == -1) {
+                  char buffer[128]; // buffer copied in Error constructor
+                  throw Error("PipeError:errno", strerror_r(errno,
+                                                            buffer,
+                                                            sizeof(buffer)));
+                }
                 _fdunlock[0] = _pipe[0];
                 _fdunlock[1] = _pipe[1];
                 
         }
 
         ~BusDispatcher()
         {}
 
         virtual void enter();
 
@@ skipping 14 matching lines @@
         void timeout_expired(DefaultTimeout &);
 
 private:
 
         bool _running;
 };
 
 } /* namespace DBus */
 
 #endif//__DBUSXX_EVENTLOOP_INTEGRATION_H