diff --git a/src/plugins/qmakeprojectmanager/qmakenodes.cpp b/src/plugins/qmakeprojectmanager/qmakenodes.cpp
index 765387e2cf2..cb75ba2ee20 100644
--- a/src/plugins/qmakeprojectmanager/qmakenodes.cpp
+++ b/src/plugins/qmakeprojectmanager/qmakenodes.cpp
@@ -1793,7 +1793,7 @@ void QmakeProFileNode::asyncUpdate()
     m_project->incrementPendingEvaluateFutures();
     setupReader();
     if (!includedInExactParse())
-        m_readerExact->setVerbose(false);
+        m_readerExact->setExact(false);
     m_parseFutureWatcher.waitForFinished();
     EvalInput input = evalInput();
     QFuture<EvalResult *> future = QtConcurrent::run(&QmakeProFileNode::asyncEvaluate, this, input);
diff --git a/src/plugins/qtsupport/profilereader.cpp b/src/plugins/qtsupport/profilereader.cpp
index a65ee78c3ad..989ff73bcb9 100644
--- a/src/plugins/qtsupport/profilereader.cpp
+++ b/src/plugins/qtsupport/profilereader.cpp
@@ -46,8 +46,11 @@ static QString format(const QString &fileName, int lineNo, const QString &msg)
         return msg;
 }
 
-ProMessageHandler::ProMessageHandler(bool verbose)
+ProMessageHandler::ProMessageHandler(bool verbose, bool exact)
     : m_verbose(verbose)
+    , m_exact(exact)
+    //: Prefix used for output from the cumulative evaluation of project files.
+    , m_prefix(tr("[Inexact] "))
 {
     QObject::connect(this, SIGNAL(writeMessage(QString,Core::MessageManager::PrintToOutputPaneFlags)),
                      Core::MessageManager::instance(), SLOT(write(QString,Core::MessageManager::PrintToOutputPaneFlags)),
@@ -56,15 +59,24 @@ ProMessageHandler::ProMessageHandler(bool verbose)
 
 void ProMessageHandler::message(int type, const QString &msg, const QString &fileName, int lineNo)
 {
-    if ((type & CategoryMask) == ErrorMessage && ((type & SourceMask) == SourceParser || m_verbose))
-        emit writeMessage(format(fileName, lineNo, msg), Core::MessageManager::NoModeSwitch);
+    if ((type & CategoryMask) == ErrorMessage && ((type & SourceMask) == SourceParser || m_verbose)) {
+        QString fmsg = format(fileName, lineNo, msg);
+        if ((type & SourceMask) == SourceParser || m_exact)
+            emit writeMessage(fmsg, Core::MessageManager::NoModeSwitch);
+        else
+            emit writeMessage(m_prefix + fmsg, Core::MessageManager::NoModeSwitch);
+    }
 }
 
 void ProMessageHandler::fileMessage(int type, const QString &msg)
 {
     Q_UNUSED(type)
-    if (m_verbose)
-        emit writeMessage(msg, Core::MessageManager::NoModeSwitch);
+    if (m_verbose) {
+        if (m_exact)
+            emit writeMessage(msg, Core::MessageManager::NoModeSwitch);
+        else
+            emit writeMessage(m_prefix + msg, Core::MessageManager::NoModeSwitch);
+    }
 }
 
 
diff --git a/src/plugins/qtsupport/profilereader.h b/src/plugins/qtsupport/profilereader.h
index dfdf9af140f..e734c1c1f49 100644
--- a/src/plugins/qtsupport/profilereader.h
+++ b/src/plugins/qtsupport/profilereader.h
@@ -49,7 +49,7 @@ class QTSUPPORT_EXPORT ProMessageHandler : public QObject, public QMakeHandler
     Q_OBJECT
 
 public:
-    ProMessageHandler(bool verbose = true);
+    ProMessageHandler(bool verbose = true, bool exact = true);
     virtual ~ProMessageHandler() {}
 
     virtual void aboutToEval(ProFile *, ProFile *, EvalFileType) {}
@@ -58,12 +58,15 @@ public:
     virtual void fileMessage(int type, const QString &msg);
 
     void setVerbose(bool on) { m_verbose = on; }
+    void setExact(bool on) { m_exact = on; }
 
 signals:
     void writeMessage(const QString &error, Core::MessageManager::PrintToOutputPaneFlags flag);
 
 private:
     bool m_verbose;
+    bool m_exact;
+    QString m_prefix;
 };
 
 class QTSUPPORT_EXPORT ProFileReader : public ProMessageHandler, public QMakeParser, public ProFileEvaluator