diff --git a/src/plugins/qt4projectmanager/qt-s60/gccetoolchain.cpp b/src/plugins/qt4projectmanager/qt-s60/gccetoolchain.cpp
index aa888db7710..e38e96420eb 100644
--- a/src/plugins/qt4projectmanager/qt-s60/gccetoolchain.cpp
+++ b/src/plugins/qt4projectmanager/qt-s60/gccetoolchain.cpp
@@ -33,6 +33,7 @@
 
 #include "gccetoolchain.h"
 #include "qt4projectmanagerconstants.h"
+#include "qtversionmanager.h"
 
 #include <utils/environment.h>
 #include <utils/synchronousprocess.h>
@@ -149,6 +150,21 @@ QList<ProjectExplorer::ToolChain *> GcceToolChainFactory::autoDetect()
 {
     QList<ProjectExplorer::ToolChain *> result;
 
+    // Compatibility to pre-2.2:
+    while (true) {
+        const QString path = QtVersionManager::instance()->popPendingGcceUpdate();
+        if (path.isNull())
+            break;
+
+        QFileInfo fi(path + QLatin1String("/bin/arm-none-symbianelf-g++.exe"));
+        if (fi.exists() && fi.isExecutable()) {
+            GcceToolChain *tc = new GcceToolChain(false);
+            tc->setCompilerPath(fi.absoluteFilePath());
+            tc->setDisplayName(tr("GCCE from Qt version"));
+            result.append(tc);
+        }
+    }
+
     QString fullPath = Utils::Environment::systemEnvironment().searchInPath(QLatin1String("arm-none-symbianelf-gcc"));
     if (!fullPath.isEmpty()) {
         GcceToolChain *tc = new GcceToolChain(true);
diff --git a/src/plugins/qt4projectmanager/qt-s60/winscwtoolchain.cpp b/src/plugins/qt4projectmanager/qt-s60/winscwtoolchain.cpp
index c6893ac7558..42047db5fcf 100644
--- a/src/plugins/qt4projectmanager/qt-s60/winscwtoolchain.cpp
+++ b/src/plugins/qt4projectmanager/qt-s60/winscwtoolchain.cpp
@@ -34,6 +34,7 @@
 #include "winscwtoolchain.h"
 
 #include "qt4projectmanager/qt4projectmanagerconstants.h"
+#include "qtversionmanager.h"
 
 #include "ui_winscwtoolchainconfigwidget.h"
 #include "winscwparser.h"
@@ -44,6 +45,7 @@
 
 #include <QtCore/QDir>
 #include <QtCore/QFileInfo>
+#include <QtCore/QStringList>
 
 namespace Qt4ProjectManager {
 namespace Internal {
@@ -377,6 +379,22 @@ QString WinscwToolChainFactory::id() const
 QList<ProjectExplorer::ToolChain *> WinscwToolChainFactory::autoDetect()
 {
     QList<ProjectExplorer::ToolChain *> result;
+
+    // Compatibility to pre-2.2:
+    while (true) {
+        const QString path = QtVersionManager::instance()->popPendingMwcUpdate();
+        if (path.isNull())
+            break;
+
+        QFileInfo fi(path + QLatin1String("/x86Build/Symbian_Tools/Command_Line_Tools/mwwinrc.exe"));
+        if (fi.exists() && fi.isExecutable()) {
+            WinscwToolChain *tc = new WinscwToolChain(false);
+            tc->setCompilerPath(fi.absoluteFilePath());
+            tc->setDisplayName(tr("WINSCW from Qt version"));
+            result.append(tc);
+        }
+    }
+
     QString cc = Utils::Environment::systemEnvironment().searchInPath(QLatin1String("mwwinrc"));
     if (!cc.isEmpty()) {
         WinscwToolChain *tc = new WinscwToolChain(true);
diff --git a/src/plugins/qt4projectmanager/qtversionmanager.cpp b/src/plugins/qt4projectmanager/qtversionmanager.cpp
index d2009b3cdfa..16810bb131d 100644
--- a/src/plugins/qt4projectmanager/qtversionmanager.cpp
+++ b/src/plugins/qt4projectmanager/qtversionmanager.cpp
@@ -176,8 +176,8 @@ QtVersionManager::QtVersionManager()
         version->setSystemRoot(s->value("S60SDKDirectory").toString());
         version->setSbsV2Directory(s->value(QLatin1String("SBSv2Directory")).toString());
 
-        // Update from 2.1 or earlier:
-        QString mingwDir = s->value(QLatin1String("MingwDirectory")).toString();
+        // Update from pre-2.2:
+        const QString mingwDir = s->value(QLatin1String("MingwDirectory")).toString();
         if (!mingwDir.isEmpty()) {
             QFileInfo fi(mingwDir + QLatin1String("/bin/g++.exe"));
             if (fi.exists() && fi.isExecutable()) {
@@ -189,30 +189,12 @@ QtVersionManager::QtVersionManager()
                 }
             }
         }
-        QString mwcDir = s->value(QLatin1String("MwcDirectory")).toString();
-        if (!mwcDir.isEmpty()) {
-            QFileInfo fi(mwcDir + QLatin1String("/x86Build/Symbian_Tools/Command_Line_Tools/mwwinrc.exe"));
-            if (fi.exists() && fi.isExecutable()) {
-                WinscwToolChain *tc = createToolChain<WinscwToolChain>(Constants::WINSCW_TOOLCHAIN_ID);
-                if (tc) {
-                    tc->setCompilerPath(fi.absoluteFilePath());
-                    tc->setDisplayName(tr("WINSCW from %1").arg(version->displayName()));
-                    ProjectExplorer::ToolChainManager::instance()->registerToolChain(tc);
-                }
-            }
-        }
-        QString gcceDir = s->value(QLatin1String("GcceDirectory")).toString();
-        if (!gcceDir.isEmpty()) {
-            QFileInfo fi(gcceDir + QLatin1String("/bin/arm-none-symbianelf-g++.exe"));
-            if (fi.exists() && fi.isExecutable()) {
-                GcceToolChain *tc = createToolChain<GcceToolChain>(Constants::GCCE_TOOLCHAIN_ID);
-                if (tc) {
-                    tc->setCompilerPath(fi.absoluteFilePath());
-                    tc->setDisplayName(tr("GCCE from %1").arg(version->displayName()));
-                    ProjectExplorer::ToolChainManager::instance()->registerToolChain(tc);
-                }
-            }
-        }
+        const QString mwcDir = s->value(QLatin1String("MwcDirectory")).toString();
+        if (!mwcDir.isEmpty())
+            m_pendingMwcUpdates.append(mwcDir);
+        const QString gcceDir = s->value(QLatin1String("GcceDirectory")).toString();
+        if (!gcceDir.isEmpty())
+            m_pendingGcceUpdates.append(gcceDir);
 
         m_versions.insert(version->uniqueId(), version);
     }
@@ -413,6 +395,20 @@ bool QtVersionManager::isValidId(int id) const
     return m_versions.contains(id);
 }
 
+QString QtVersionManager::popPendingMwcUpdate()
+{
+    if (m_pendingMwcUpdates.isEmpty())
+        return QString();
+    return m_pendingMwcUpdates.takeFirst();
+}
+
+QString QtVersionManager::popPendingGcceUpdate()
+{
+    if (m_pendingGcceUpdates.isEmpty())
+        return QString();
+    return m_pendingGcceUpdates.takeFirst();
+}
+
 QtVersion *QtVersionManager::version(int id) const
 {
     QMap<int, QtVersion *>::const_iterator it = m_versions.find(id);
diff --git a/src/plugins/qt4projectmanager/qtversionmanager.h b/src/plugins/qt4projectmanager/qtversionmanager.h
index b5cb9133602..dbc4b003aa6 100644
--- a/src/plugins/qt4projectmanager/qtversionmanager.h
+++ b/src/plugins/qt4projectmanager/qtversionmanager.h
@@ -294,6 +294,10 @@ public:
     static QString findQMakeBinaryFromMakefile(const QString &directory);
     bool isValidId(int id) const;
 
+    // Compatibility with pre-2.2:
+    QString popPendingMwcUpdate();
+    QString popPendingGcceUpdate();
+
 signals:
     void qtVersionsChanged(const QList<int> &uniqueIds);
     void updateExamples(QString, QString, QString);
@@ -328,6 +332,10 @@ private:
     int m_idcount;
     // managed by QtProjectManagerPlugin
     static QtVersionManager *m_self;
+
+    // Compatibility with pre-2.2:
+    QStringList m_pendingMwcUpdates;
+    QStringList m_pendingGcceUpdates;
 };
 
 } // namespace Qt4ProjectManager