diff --git a/akonadi/tests/testrunner/setup.cpp b/akonadi/tests/testrunner/setup.cpp
index 1abb50757..16cc95d56 100644
--- a/akonadi/tests/testrunner/setup.cpp
+++ b/akonadi/tests/testrunner/setup.cpp
@@ -1,208 +1,218 @@
 /*
  * Copyright (c) 2008  Igor Trindade Oliveira <igor_trindade@yahoo.com.br>
  *
  * 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, see <http://www.gnu.org/licenses/>.
  */
 
 #include "setup.h"
 #include "config.h"
 #include "symbols.h"
 
 #include <kapplication.h>
 #include <kdebug.h>
 
 #include <QMap>
 #include <QDBusConnection>
 #include <QDBusConnectionInterface>
 #include <QDBusInterface>
 
 #include <signal.h>
 #include <unistd.h>
 
+#ifdef __APPLE__
+#include <AvailabilityMacros.h>
+#endif
+
 QMap<QString, QString> SetupTest::getEnvironment()
 {
   QMap<QString, QString> env;
 
   foreach (const QString& val, QProcess::systemEnvironment()) {
     int p = val.indexOf('=');
     if (p > 0) {
       env[val.left(p).toUpper()] = val.mid(p+1);
     }
   }
   return env;
 }
 
 
 bool SetupTest::clearEnvironment()
 {
   QMap<QString, QString> environment = getEnvironment();
 
   foreach(const QString& s, environment.keys()) {
     if (s != "HOME") {
+// work around a bug in the Mac OS X 10.4.0 SDK
+#if defined(MAC_OS_X_VERSION_MAX_ALLOWED) && (MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_4)
+      /* on OSX 10.4, unsetenv is a void, not a boolean */
+      unsetenv( s.toAscii() );
+#else
       if ( !unsetenv( s.toAscii() )) {
         return false;
       }
+#endif
     }
   }
 
   return true;
 }
 
 int SetupTest::addDBusToEnvironment(QIODevice& io) {
   QByteArray data = io.readLine();
   int pid = -1;
   Symbols *symbol = Symbols::getInstance();
 
   while (data.size()) {
     if (data[data.size()-1] == '\n') {
       data.resize(data.size()-1);
     }
     QString val(data);
     int p = val.indexOf('=');
     if (p > 0) {
       QString name = val.left(p).toUpper();
       val = val.mid(p+1);
       if (name == "DBUS_SESSION_BUS_PID") {
         pid = val.toInt();
         setenv(name.toAscii(), val.toAscii(), 1);
         symbol->insertSymbol(name, val);
       } else if (name == "DBUS_SESSION_BUS_ADDRESS") {
         setenv(name.toAscii(), val.toAscii(), 1);
         symbol->insertSymbol(name, val);
       }
     }
     data = io.readLine();
   }
   return pid;
 }
 
 int SetupTest::startDBusDaemon()
 {
 
   QProcess dbusprocess;
   QStringList dbusargs;
 
   dbusprocess.start("/usr/bin/dbus-launch", dbusargs);
   bool ok = dbusprocess.waitForStarted() && dbusprocess.waitForFinished();
   if (!ok) {
     kDebug() << "error starting dbus-launch";
     dbusprocess.kill();
     return -1;
   }
 
   int dbuspid = addDBusToEnvironment(dbusprocess);
   return dbuspid;
 }
 
 void SetupTest::stopDBusDaemon(int dbuspid)
 {
   kDebug() << dbuspid;
   if (dbuspid) kill(dbuspid, 15);
   sleep(1);
 
   if (dbuspid) kill(dbuspid, 9);
 }
 
 void SetupTest::registerWithInternalDBus( const QString &address )
 {
   mInternalBus = new QDBusConnection( QDBusConnection::connectToBus( address, QLatin1String( "InternalBus" ) ) );
   mInternalBus->registerService( QLatin1String( "org.kde.Akonaditest" ) );
   mInternalBus->registerObject(QLatin1String("/MainApplication"),
                              KApplication::kApplication(),
                              QDBusConnection::ExportScriptableSlots |
                              QDBusConnection::ExportScriptableProperties |
                              QDBusConnection::ExportAdaptors);
 
   QDBusConnectionInterface *busInterface = mInternalBus->interface();
   connect( busInterface, SIGNAL( serviceOwnerChanged( QString, QString, QString ) ),
            this, SLOT( dbusNameOwnerChanged( QString, QString, QString ) ) );
 }
 
 void SetupTest::startAkonadiDaemon()
 {
   QString akonadiDaemon = "akonadi_control";
   QStringList args;
   akonadiDaemonProcess->start(akonadiDaemon, args);
   akonadiDaemonProcess->waitForStarted(5000);
   kDebug()<<akonadiDaemonProcess->pid();
 }
 
 void SetupTest::stopAkonadiDaemon()
 {
   akonadiDaemonProcess->terminate();
   if (!akonadiDaemonProcess->waitForFinished(5000)) {
     kDebug() << "Problem finishing process.";
   }
   akonadiDaemonProcess->close();
 }
 
 void SetupTest::setupAgents()
 {
   Config *config = Config::getInstance();
   QDBusInterface  agentDBus( "org.freedesktop.Akonadi.Control", "/AgentManager",
                            "org.freedesktop.Akonadi.AgentManager", *mInternalBus );
 
   kDebug() << "available agent types:" << agentDBus.call( QLatin1String( "agentTypes" ) );
 
   kDebug() << config->getAgents();
   foreach(const QString &agent, config->getAgents()){
     kDebug() << "inserting resource:"<<agent;
     kDebug() << agentDBus.call( QLatin1String( "createAgentInstance" ), agent);
   }
 }
 
 void SetupTest::dbusNameOwnerChanged( const QString &name, const QString &oldOwner, const QString &newOwner )
 {
   kDebug() << name << oldOwner << newOwner;
 
   // TODO: find out why it does not work properly when reacting on
   // org.freedesktop.Akonadi.Control
   if ( name == QLatin1String( "org.freedesktop.Akonadi" ) )
     setupAgents();
 }
 
 SetupTest::SetupTest()
 {
 
   clearEnvironment();
 
   Config *config = Config::getInstance();
 
   setenv("KDEHOME", config->getKdeHome().toAscii() , 1 );
   setenv("XDG_DATA_HOME", config->getXdgDataHome().toAscii() , 1 );
   setenv("XDG_CONFIG_HOME", config->getXdgConfigHome().toAscii() , 1 );
 
   Symbols *symbol = Symbols::getInstance();
   symbol->insertSymbol("KDEHOME", config->getKdeHome());
   symbol->insertSymbol("XDG_DATA_HOME", config->getXdgDataHome());
   symbol->insertSymbol("XDG_CONFIG_HOME", config->getXdgConfigHome());
   symbol->insertSymbol("AKONADI_TESTRUNNER_PID", QString::number( QCoreApplication::instance()->applicationPid() ) );
 
   dpid = startDBusDaemon();
 
 #if (QT_VERSION >= QT_VERSION_CHECK(4, 4, 2))
   const QString dbusAddress = symbol->getSymbols()[ "DBUS_SESSION_BUS_ADDRESS" ];
   registerWithInternalDBus( dbusAddress );
 #endif
 
   akonadiDaemonProcess = new QProcess();
 }
 
 SetupTest::~SetupTest()
 {
   stopAkonadiDaemon();
   stopDBusDaemon(dpid);
 
   delete akonadiDaemonProcess;
 }