diff --git a/src/plugins/projectexplorer/projectexplorer.cpp b/src/plugins/projectexplorer/projectexplorer.cpp
index 75d967b2fe363435cc0b0a4270a2d973c03a69ac..549d0ce3508029ad56bb9908bbde8ebc76d3ec7a 100644
--- a/src/plugins/projectexplorer/projectexplorer.cpp
+++ b/src/plugins/projectexplorer/projectexplorer.cpp
@@ -2171,6 +2171,7 @@ BuildConfigDialog::BuildConfigDialog(Project *project, QWidget *parent)
     descriptiveText->setWordWrap(true);
     vlayout->addWidget(descriptiveText);
     m_configCombo = new QComboBox;
+
     RunConfiguration *activeRun = m_project->activeRunConfiguration();
     foreach (BuildConfiguration *config, m_project->buildConfigurations()) {
         if (activeRun->isEnabled(config)) {
diff --git a/src/plugins/projectexplorer/projectwindow.cpp b/src/plugins/projectexplorer/projectwindow.cpp
index 71cddb250e3e1005314fd3748ecb41f7f90c0f24..cac66e7493686e7d9b5bed17085a2eaf70e5d343 100644
--- a/src/plugins/projectexplorer/projectwindow.cpp
+++ b/src/plugins/projectexplorer/projectwindow.cpp
@@ -361,6 +361,8 @@ void RunConfigurationComboBox::addedRunConfiguration(ProjectExplorer::Project *p
 
 void RunConfigurationComboBox::removedRunConfiguration(ProjectExplorer::Project *p, const QString &name)
 {
+    Q_UNUSED(p)
+    Q_UNUSED(name)
     rebuildTree();
 }
 
diff --git a/src/plugins/qt4projectmanager/projectloadwizard.cpp b/src/plugins/qt4projectmanager/projectloadwizard.cpp
index ffad329b3f802c80765eef48ba8f2a30da0e6647..3eae813b041788bc06da3fd9aa8d8c00214017fc 100644
--- a/src/plugins/qt4projectmanager/projectloadwizard.cpp
+++ b/src/plugins/qt4projectmanager/projectloadwizard.cpp
@@ -63,7 +63,7 @@ ProjectLoadWizard::ProjectLoadWizard(Qt4Project *project, QWidget *parent, Qt::W
             m_temporaryVersion = true;
         }
 
-        QPair<QtVersion::QmakeBuildConfig, QStringList> result =
+        QPair<QtVersion::QmakeBuildConfigs, QStringList> result =
                 QtVersionManager::scanMakeFile(directory, m_importVersion->defaultBuildConfig());
         m_importBuildConfig = result.first;
         m_additionalArguments = Qt4Project::removeSpecFromArgumentList(result.second);
@@ -126,11 +126,11 @@ void ProjectLoadWizard::done(int result)
 
         if (m_importBuildConfig & QtVersion::BuildAll) {
             // Also create the other configuration
-            QtVersion::QmakeBuildConfig otherBuildConfiguration = m_importBuildConfig;
+            QtVersion::QmakeBuildConfigs otherBuildConfiguration = m_importBuildConfig;
             if (debug)
-                otherBuildConfiguration = QtVersion::QmakeBuildConfig(otherBuildConfiguration & ~ QtVersion::DebugBuild);
+                otherBuildConfiguration = otherBuildConfiguration & ~ QtVersion::DebugBuild;
             else
-                otherBuildConfiguration = QtVersion::QmakeBuildConfig(otherBuildConfiguration | QtVersion::DebugBuild);
+                otherBuildConfiguration = otherBuildConfiguration | QtVersion::DebugBuild;
 
             m_project->addQt4BuildConfiguration(debug ? "Release" : "Debug", m_importVersion, otherBuildConfiguration, m_additionalArguments);
         }
@@ -144,7 +144,7 @@ void ProjectLoadWizard::done(int result)
         if (defaultVersion && defaultVersion->isValid() && (defaultVersion->defaultBuildConfig() & QtVersion::BuildAll))
             buildAll = true;
         if (buildAll) {
-            m_project->addQt4BuildConfiguration("Debug", 0, QtVersion::QmakeBuildConfig(QtVersion::BuildAll | QtVersion::DebugBuild), m_additionalArguments);
+            m_project->addQt4BuildConfiguration("Debug", 0, QtVersion::BuildAll | QtVersion::DebugBuild, m_additionalArguments);
             m_project->addQt4BuildConfiguration("Release", 0, QtVersion::BuildAll, m_additionalArguments);
         } else {
             m_project->addQt4BuildConfiguration("Debug", 0, QtVersion::DebugBuild, m_additionalArguments);
@@ -162,7 +162,7 @@ int ProjectLoadWizard::nextId() const
     return -1;
 }
 
-void ProjectLoadWizard::setupImportPage(QtVersion *version, QtVersion::QmakeBuildConfig buildConfig, QStringList addtionalArguments)
+void ProjectLoadWizard::setupImportPage(QtVersion *version, QtVersion::QmakeBuildConfigs buildConfig, QStringList addtionalArguments)
 {
     resize(605, 490);
     // Import Page
diff --git a/src/plugins/qt4projectmanager/projectloadwizard.h b/src/plugins/qt4projectmanager/projectloadwizard.h
index ef92cfb516eab913034b0e65b70091639290e016..a4b3bea62ca4386a7b16b574b24817870df42fe1 100644
--- a/src/plugins/qt4projectmanager/projectloadwizard.h
+++ b/src/plugins/qt4projectmanager/projectloadwizard.h
@@ -57,13 +57,13 @@ public:
     void execDialog();
 
 private:
-    void setupImportPage(QtVersion *version, QtVersion::QmakeBuildConfig buildConfig, QStringList addtionalArguments);
+    void setupImportPage(QtVersion *version, QtVersion::QmakeBuildConfigs buildConfig, QStringList addtionalArguments);
 
     Qt4Project *m_project;
 
     // Only used for imported stuff
     QtVersion *m_importVersion;
-    QtVersion::QmakeBuildConfig m_importBuildConfig;
+    QtVersion::QmakeBuildConfigs m_importBuildConfig;
     QStringList m_additionalArguments;
     // Those that we might add
     bool m_temporaryVersion;
diff --git a/src/plugins/qt4projectmanager/qmakestep.cpp b/src/plugins/qt4projectmanager/qmakestep.cpp
index 3dc192594bf757dc04261cfdea9ffdf96cee38b5..51fb62997189e02dd1c72689fcda54dae5fc7fc8 100644
--- a/src/plugins/qt4projectmanager/qmakestep.cpp
+++ b/src/plugins/qt4projectmanager/qmakestep.cpp
@@ -77,8 +77,8 @@ QStringList QMakeStep::arguments(const QString &buildConfiguration)
 
     if (bc->value("buildConfiguration").isValid()) {
         QStringList configarguments;
-        QtVersion::QmakeBuildConfig defaultBuildConfiguration = m_pro->qtVersion(bc)->defaultBuildConfig();
-        QtVersion::QmakeBuildConfig projectBuildConfiguration = QtVersion::QmakeBuildConfig(bc->value("buildConfiguration").toInt());
+        QtVersion::QmakeBuildConfigs defaultBuildConfiguration = m_pro->qtVersion(bc)->defaultBuildConfig();
+        QtVersion::QmakeBuildConfigs projectBuildConfiguration = QtVersion::QmakeBuildConfig(bc->value("buildConfiguration").toInt());
         if ((defaultBuildConfiguration & QtVersion::BuildAll) && !(projectBuildConfiguration & QtVersion::BuildAll))
             configarguments << "CONFIG-=debug_and_release";
         if (!(defaultBuildConfiguration & QtVersion::BuildAll) && (projectBuildConfiguration & QtVersion::BuildAll))
@@ -271,12 +271,12 @@ void QMakeStepConfigWidget::qmakeArgumentsLineEditTextEdited()
 void QMakeStepConfigWidget::buildConfigurationChanged()
 {
     ProjectExplorer::BuildConfiguration *bc = m_step->project()->buildConfiguration(m_buildConfiguration);
-    QtVersion::QmakeBuildConfig buildConfiguration = QtVersion::QmakeBuildConfig(bc->value("buildConfiguration").toInt());
+    QtVersion::QmakeBuildConfigs buildConfiguration = QtVersion::QmakeBuildConfig(bc->value("buildConfiguration").toInt());
     if (m_ui.buildConfigurationComboBox->currentIndex() == 0) {
         // debug
-        buildConfiguration = QtVersion::QmakeBuildConfig(buildConfiguration | QtVersion::DebugBuild);
+        buildConfiguration = buildConfiguration | QtVersion::DebugBuild;
     } else {
-        buildConfiguration = QtVersion::QmakeBuildConfig(buildConfiguration & ~QtVersion::DebugBuild);
+        buildConfiguration = buildConfiguration & ~QtVersion::DebugBuild;
     }
     bc->setValue("buildConfiguration", int(buildConfiguration));
     static_cast<Qt4Project *>(m_step->project())->invalidateCachedTargetInformation();
diff --git a/src/plugins/qt4projectmanager/qt-s60/s60devicerunconfiguration.cpp b/src/plugins/qt4projectmanager/qt-s60/s60devicerunconfiguration.cpp
index 3d3290512f144f48043ea9cf1766d5b3b69588e0..616bd86be417b25263f9d7dd6d029c8bf6c0a960 100644
--- a/src/plugins/qt4projectmanager/qt-s60/s60devicerunconfiguration.cpp
+++ b/src/plugins/qt4projectmanager/qt-s60/s60devicerunconfiguration.cpp
@@ -272,9 +272,9 @@ void S60DeviceRunConfiguration::updateTarget()
     reader->setQtVersion(qtVersion);
 
     // Find out what flags we pass on to qmake, this code is duplicated in the qmake step
-    QtVersion::QmakeBuildConfig defaultBuildConfiguration = qtVersion->defaultBuildConfig();
-    QtVersion::QmakeBuildConfig projectBuildConfiguration = QtVersion::QmakeBuildConfig(pro->activeBuildConfiguration()
-                                                                                        ->value("buildConfiguration").toInt());
+    QtVersion::QmakeBuildConfigs defaultBuildConfiguration = qtVersion->defaultBuildConfig();
+    QtVersion::QmakeBuildConfigs projectBuildConfiguration = pro->activeBuildConfiguration()
+                                                             ->value("buildConfiguration").toInt();
     QStringList addedUserConfigArguments;
     QStringList removedUserConfigArguments;
     if ((defaultBuildConfiguration & QtVersion::BuildAll) && !(projectBuildConfiguration & QtVersion::BuildAll))
diff --git a/src/plugins/qt4projectmanager/qt-s60/s60emulatorrunconfiguration.cpp b/src/plugins/qt4projectmanager/qt-s60/s60emulatorrunconfiguration.cpp
index 729df92277574dc08e998a1da14ed4b49d7c7634..5c3c2c48023e28818c8e2d51d4394cb86f9cac65 100644
--- a/src/plugins/qt4projectmanager/qt-s60/s60emulatorrunconfiguration.cpp
+++ b/src/plugins/qt4projectmanager/qt-s60/s60emulatorrunconfiguration.cpp
@@ -127,8 +127,8 @@ void S60EmulatorRunConfiguration::updateTarget()
     reader->setQtVersion(qtVersion);
 
     // Find out what flags we pass on to qmake, this code is duplicated in the qmake step
-    QtVersion::QmakeBuildConfig defaultBuildConfiguration = qtVersion->defaultBuildConfig();
-    QtVersion::QmakeBuildConfig projectBuildConfiguration = QtVersion::QmakeBuildConfig(pro->activeBuildConfiguration()
+    QtVersion::QmakeBuildConfigs defaultBuildConfiguration = qtVersion->defaultBuildConfig();
+    QtVersion::QmakeBuildConfigs projectBuildConfiguration = QtVersion::QmakeBuildConfig(pro->activeBuildConfiguration()
                                                                                         ->value("buildConfiguration").toInt());
     QStringList addedUserConfigArguments;
     QStringList removedUserConfigArguments;
diff --git a/src/plugins/qt4projectmanager/qt4project.cpp b/src/plugins/qt4projectmanager/qt4project.cpp
index fa7b3a45827459e4310f6d0ff301dfbdf7ddd535..ede6604bcf0d61f30e15d26fa10bbabcd6e259c8 100644
--- a/src/plugins/qt4projectmanager/qt4project.cpp
+++ b/src/plugins/qt4projectmanager/qt4project.cpp
@@ -289,10 +289,10 @@ bool Qt4BuildConfigurationFactory::create(const QString &type) const
 
     m_project->addQt4BuildConfiguration(tr("%1 Debug").arg(buildConfigurationName),
                                      version,
-                                     (QtVersion::QmakeBuildConfig)(version->defaultBuildConfig() | QtVersion::DebugBuild));
+                                     (version->defaultBuildConfig() | QtVersion::DebugBuild));
     m_project->addQt4BuildConfiguration(tr("%1 Release").arg(buildConfigurationName),
                                      version,
-                                     (QtVersion::QmakeBuildConfig)(version->defaultBuildConfig() & ~QtVersion::DebugBuild));
+                                     (version->defaultBuildConfig() & ~QtVersion::DebugBuild));
     return true;
 }
 
@@ -437,7 +437,7 @@ ProjectExplorer::IBuildConfigurationFactory *Qt4Project::buildConfigurationFacto
 }
 
 void Qt4Project::addQt4BuildConfiguration(QString buildConfigurationName, QtVersion *qtversion,
-                                          QtVersion::QmakeBuildConfig qmakeBuildConfiguration,
+                                          QtVersion::QmakeBuildConfigs qmakeBuildConfiguration,
                                           QStringList additionalArguments)
 {
     QMakeStep *qmake = qmakeStep();
@@ -851,7 +851,7 @@ void Qt4Project::addDefaultBuild()
                 bc->setValue("buildConfiguration", v);
             } else if (!bc->value("buildConfiguration").isValid()) {
                 if (QtVersion *version = qtVersion(bc))
-                    bc->setValue("buildConfiguration", version->defaultBuildConfig());
+                    bc->setValue("buildConfiguration", int(version->defaultBuildConfig()));
                 else
                     bc->setValue("buildConfiguration", int(QtVersion::BuildAll & QtVersion::DebugBuild));
             }
@@ -1299,7 +1299,7 @@ bool Qt4Project::compareBuildConfigurationToImportFrom(BuildConfiguration *confi
         QtVersion *version = qtVersion(configuration);
         if (version->qmakeCommand() == qmakePath) {
             // same qtversion
-            QPair<QtVersion::QmakeBuildConfig, QStringList> result =
+            QPair<QtVersion::QmakeBuildConfigs, QStringList> result =
                     QtVersionManager::scanMakeFile(workingDirectory, version->defaultBuildConfig());
             if (QtVersion::QmakeBuildConfig(configuration->value("buildConfiguration").toInt()) == result.first) {
                 // The QMake Build Configuration are the same,
diff --git a/src/plugins/qt4projectmanager/qt4project.h b/src/plugins/qt4projectmanager/qt4project.h
index aac7ac8cbabc7dd11dc75b9b53de14de3af60dd7..21b96e26a7d87e49d0a7a43e0dc2ef424261052d 100644
--- a/src/plugins/qt4projectmanager/qt4project.h
+++ b/src/plugins/qt4projectmanager/qt4project.h
@@ -163,7 +163,7 @@ public:
 
     void addQt4BuildConfiguration(QString buildConfigurationName,
                                QtVersion *qtversion,
-                               QtVersion::QmakeBuildConfig qmakeBuildConfiguration,
+                               QtVersion::QmakeBuildConfigs qmakeBuildConfiguration,
                                QStringList additionalArguments = QStringList());
 
     QList<Core::IFile *> dependencies();     //NBS remove
diff --git a/src/plugins/qt4projectmanager/qt4projectconfigwidget.cpp b/src/plugins/qt4projectmanager/qt4projectconfigwidget.cpp
index a4627ced2945f6e9795a04bd79d29261f3a3712d..4c87287958c287a63ddd0362278ed8833e8648a2 100644
--- a/src/plugins/qt4projectmanager/qt4projectconfigwidget.cpp
+++ b/src/plugins/qt4projectmanager/qt4projectconfigwidget.cpp
@@ -285,9 +285,9 @@ void Qt4ProjectConfigWidget::importLabelClicked()
                 vm->addVersion(version);
             }
 
-            QPair<QtVersion::QmakeBuildConfig, QStringList> result =
+            QPair<QtVersion::QmakeBuildConfigs, QStringList> result =
                     QtVersionManager::scanMakeFile(directory, version->defaultBuildConfig());
-            QtVersion::QmakeBuildConfig qmakeBuildConfig = result.first;
+            QtVersion::QmakeBuildConfigs qmakeBuildConfig = result.first;
             QStringList additionalArguments = Qt4Project::removeSpecFromArgumentList(result.second);
             QString parsedSpec = Qt4Project::extractSpecFromArgumentList(result.second, directory, version);
             QString versionSpec = version->mkspec();
diff --git a/src/plugins/qt4projectmanager/qt4runconfiguration.cpp b/src/plugins/qt4projectmanager/qt4runconfiguration.cpp
index 349b0052fb77b4ccd89f11027555ee0b58ae8c04..40759947d647c0648fbf2e0144565fb8531bb7d3 100644
--- a/src/plugins/qt4projectmanager/qt4runconfiguration.cpp
+++ b/src/plugins/qt4projectmanager/qt4runconfiguration.cpp
@@ -568,8 +568,8 @@ void Qt4RunConfiguration::updateTarget()
     reader->setQtVersion(pro->qtVersion(pro->activeBuildConfiguration()));
 
     // Find out what flags we pass on to qmake, this code is duplicated in the qmake step
-    QtVersion::QmakeBuildConfig defaultBuildConfiguration = pro->qtVersion(pro->activeBuildConfiguration())->defaultBuildConfig();
-    QtVersion::QmakeBuildConfig projectBuildConfiguration = QtVersion::QmakeBuildConfig(pro->activeBuildConfiguration()->value("buildConfiguration").toInt());
+    QtVersion::QmakeBuildConfigs defaultBuildConfiguration = pro->qtVersion(pro->activeBuildConfiguration())->defaultBuildConfig();
+    QtVersion::QmakeBuildConfigs projectBuildConfiguration = QtVersion::QmakeBuildConfig(pro->activeBuildConfiguration()->value("buildConfiguration").toInt());
     QStringList addedUserConfigArguments;
     QStringList removedUserConfigArguments;
     if ((defaultBuildConfiguration & QtVersion::BuildAll) && !(projectBuildConfiguration & QtVersion::BuildAll))
diff --git a/src/plugins/qt4projectmanager/qtversionmanager.cpp b/src/plugins/qt4projectmanager/qtversionmanager.cpp
index 8f50ce13d2bf3305aba4586b1828d3b90abcaa37..139350eec74ab143e7bb79bd832096aa6210307b 100644
--- a/src/plugins/qt4projectmanager/qtversionmanager.cpp
+++ b/src/plugins/qt4projectmanager/qtversionmanager.cpp
@@ -671,11 +671,11 @@ void dumpQMakeAssignments(const QList<QMakeAssignment> &list)
     }
 }
 
-QPair<QtVersion::QmakeBuildConfig, QStringList> QtVersionManager::scanMakeFile(const QString &directory, QtVersion::QmakeBuildConfig defaultBuildConfig)
+QPair<QtVersion::QmakeBuildConfigs, QStringList> QtVersionManager::scanMakeFile(const QString &directory, QtVersion::QmakeBuildConfigs defaultBuildConfig)
 {
     if (debug)
         qDebug()<<"ScanMakeFile, the gory details:";
-    QtVersion::QmakeBuildConfig result = QtVersion::NoBuild;
+    QtVersion::QmakeBuildConfigs result = QtVersion::NoBuild;
     QStringList result2;
 
     QString line = findQMakeLine(directory);
@@ -829,9 +829,9 @@ void QtVersionManager::parseParts(const QStringList &parts, QList<QMakeAssignmen
 }
 
 /// This function extracts all the CONFIG+=debug, CONFIG+=release
-QtVersion::QmakeBuildConfig QtVersionManager::qmakeBuildConfigFromCmdArgs(QList<QMakeAssignment> *assignments, QtVersion::QmakeBuildConfig defaultBuildConfig)
+QtVersion::QmakeBuildConfigs QtVersionManager::qmakeBuildConfigFromCmdArgs(QList<QMakeAssignment> *assignments, QtVersion::QmakeBuildConfigs defaultBuildConfig)
 {
-    QtVersion::QmakeBuildConfig result = defaultBuildConfig;
+    QtVersion::QmakeBuildConfigs result = defaultBuildConfig;
     QList<QMakeAssignment> oldAssignments = *assignments;
     assignments->clear();
     foreach(QMakeAssignment qa, oldAssignments) {
@@ -841,19 +841,19 @@ QtVersion::QmakeBuildConfig QtVersionManager::qmakeBuildConfigFromCmdArgs(QList<
             foreach(const QString &value, values) {
                 if (value == "debug") {
                     if (qa.op == "+=")
-                        result = QtVersion::QmakeBuildConfig(result  | QtVersion::DebugBuild);
+                        result = result  | QtVersion::DebugBuild;
                     else
-                        result = QtVersion::QmakeBuildConfig(result  & ~QtVersion::DebugBuild);
+                        result = result  & ~QtVersion::DebugBuild;
                 } else if (value == "release") {
                     if (qa.op == "+=")
-                        result = QtVersion::QmakeBuildConfig(result & ~QtVersion::DebugBuild);
+                        result = result & ~QtVersion::DebugBuild;
                     else
-                        result = QtVersion::QmakeBuildConfig(result | QtVersion::DebugBuild);
+                        result = result | QtVersion::DebugBuild;
                 } else if (value == "debug_and_release") {
                     if (qa.op == "+=")
-                        result = QtVersion::QmakeBuildConfig(result | QtVersion::BuildAll);
+                        result = result | QtVersion::BuildAll;
                     else
-                        result = QtVersion::QmakeBuildConfig(result & ~QtVersion::BuildAll);
+                        result = result & ~QtVersion::BuildAll;
                 } else {
                     newValues.append(value);
                 }
@@ -1294,14 +1294,15 @@ bool QtVersion::isValid() const
         || name() == QString::null) && !m_notInstalled);
 }
 
-QtVersion::QmakeBuildConfig QtVersion::defaultBuildConfig() const
+QtVersion::QmakeBuildConfigs QtVersion::defaultBuildConfig() const
 {
     updateToolChainAndMkspec();
-    QtVersion::QmakeBuildConfig result = QtVersion::QmakeBuildConfig(0);
+    QtVersion::QmakeBuildConfigs result = QtVersion::QmakeBuildConfig(0);
+
     if (m_defaultConfigIsDebugAndRelease)
         result = QtVersion::BuildAll;
     if (m_defaultConfigIsDebug)
-        result = QtVersion::QmakeBuildConfig(result | QtVersion::DebugBuild);
+        result = result | QtVersion::DebugBuild;
     return result;
 }
 
diff --git a/src/plugins/qt4projectmanager/qtversionmanager.h b/src/plugins/qt4projectmanager/qtversionmanager.h
index ac553da0320144dfec45bc087774aa613fe5f474..181e8af60cad1600d465f0e8c562a26308943e5c 100644
--- a/src/plugins/qt4projectmanager/qtversionmanager.h
+++ b/src/plugins/qt4projectmanager/qtversionmanager.h
@@ -132,10 +132,10 @@ public:
         BuildAll = 8
     };
 
-    QmakeBuildConfig defaultBuildConfig() const;
+    Q_DECLARE_FLAGS(QmakeBuildConfigs, QmakeBuildConfig)
 
+    QmakeBuildConfigs defaultBuildConfig() const;
     QString toHtml() const;
-
 private:
     QList<QSharedPointer<ProjectExplorer::ToolChain> > toolChains() const;
     static int getUniqueId();
@@ -178,6 +178,8 @@ private:
     mutable QString m_linguistCommand;
 };
 
+Q_DECLARE_OPERATORS_FOR_FLAGS(QtVersion::QmakeBuildConfigs)
+
 struct QMakeAssignment
 {
     QString variable;
@@ -207,7 +209,7 @@ public:
     void removeVersion(QtVersion *version);
 
     // Static Methods
-    static QPair<QtVersion::QmakeBuildConfig, QStringList> scanMakeFile(const QString &directory, QtVersion::QmakeBuildConfig defaultBuildConfig);
+    static QPair<QtVersion::QmakeBuildConfigs, QStringList> scanMakeFile(const QString &directory, QtVersion::QmakeBuildConfigs defaultBuildConfig);
     static QString findQMakeBinaryFromMakefile(const QString &directory);
 signals:
     void defaultQtVersionChanged();
@@ -221,7 +223,7 @@ private:
     static QString trimLine(const QString line);
     static QStringList splitLine(const QString &line);
     static void parseParts(const QStringList &parts, QList<QMakeAssignment> *assignments, QList<QMakeAssignment> *afterAssignments, QStringList *additionalArguments);
-    static QtVersion::QmakeBuildConfig qmakeBuildConfigFromCmdArgs(QList<QMakeAssignment> *assignments, QtVersion::QmakeBuildConfig defaultBuildConfig);
+    static QtVersion::QmakeBuildConfigs qmakeBuildConfigFromCmdArgs(QList<QMakeAssignment> *assignments, QtVersion::QmakeBuildConfigs defaultBuildConfig);
     // Used by QtOptionsPage
     void setNewQtVersions(QList<QtVersion *> newVersions, int newDefaultVersion);
     // Used by QtVersion