[LyX/master] Fix compilation with qt5 and c++11 combined.

[Georg Baum]

commit d88e40158912e0205d2aaf21abbc9de7a6addbfc
Author: Guillaume Munch <ga...@free.fr>
Date:   Mon Aug 24 21:05:48 2015 +0200

    Fix compilation with qt5 and c++11 combined.

diff --git a/src/frontends/qt4/GuiApplication.cpp 
b/src/frontends/qt4/GuiApplication.cpp
index fe34509..7671d59 100644
--- a/src/frontends/qt4/GuiApplication.cpp
+++ b/src/frontends/qt4/GuiApplication.cpp
@@ -3085,7 +3085,7 @@ bool GuiApplication::x11EventFilter(XEvent * xev)
 }
 #elif defined(QPA_XCB)
 bool GuiApplication::nativeEventFilter(const QByteArray & eventType,
-                                      void * message, long *) Q_DECL_OVERRIDE
+                                      void * message, long *)
 {
        if (!current_view_ || eventType != "xcb_generic_event_t")
                return false;
diff --git a/src/frontends/qt4/GuiApplication.h 
b/src/frontends/qt4/GuiApplication.h
index 344a862..350adc8 100644
--- a/src/frontends/qt4/GuiApplication.h
+++ b/src/frontends/qt4/GuiApplication.h
@@ -108,7 +108,8 @@ public:
 #ifdef Q_WS_X11
        bool x11EventFilter(XEvent * ev);
 #elif defined(QPA_XCB)
-       virtual bool nativeEventFilter(const QByteArray & eventType, void * 
message, long * result);
+       virtual bool nativeEventFilter(const QByteArray & eventType, void * 
message,
+                                      long * result) Q_DECL_OVERRIDE;
 #endif
        //@}