1 files changed, 7 insertions, 4 deletions
diff --git a/src/libs/cplusplus/FastPreprocessor.h b/src/libs/cplusplus/FastPreprocessor.h
index 0892e120b4..c4f30063fa 100644
--- a/src/libs/cplusplus/FastPreprocessor.h
+++ b/src/libs/cplusplus/FastPreprocessor.h
@@ -3,12 +3,15 @@
 
 #pragma once
 
-#include "PreprocessorClient.h"
 #include "CppDocument.h"
-#include "pp.h"
+#include "PreprocessorClient.h"
+#include "PreprocessorEnvironment.h"
+#include "pp-engine.h"
 
 #include <cplusplus/Control.h>
 
+#include <utils/filepath.h>
+
 #include <QSet>
 #include <QString>
 
@@ -19,11 +22,11 @@ class CPLUSPLUS_EXPORT FastPreprocessor: public Client
     Environment _env;
     Snapshot _snapshot;
     Preprocessor _preproc;
-    QSet<QString> _merged;
+    QSet<Utils::FilePath> _merged;
     Document::Ptr _currentDoc;
     bool _addIncludesToCurrentDoc;
 
-    void mergeEnvironment(const QString &fileName);
+    void mergeEnvironment(const Utils::FilePath &filePath);
 
 public:
     FastPreprocessor(const Snapshot &snapshot);