+ fix gcc build

src/Gui/CommandWindow.cpp

@@ -23,6 +23,7 @@
 
 #include "PreCompiled.h"
 #ifndef _PreComp_
+# include <QCoreApplication>
 # include <QStatusBar>
 #endif
 

src/Gui/DlgActivateWindowImp.cpp

@@ -25,6 +25,7 @@
 #ifndef _PreComp_
 # include <QApplication>
 # include <QHeaderView>
+# include <QPushButton>
 #endif
 
 #include "DlgActivateWindowImp.h"

src/Gui/DlgCustomizeImp.cpp

@@ -22,6 +22,9 @@
 
 
 #include "PreCompiled.h"
+#ifndef _PreComp_
+# include <QPushButton>
+#endif
 
 #include "DlgCustomizeImp.h"
 #include "MainWindow.h"

src/Gui/DlgInputDialogImp.cpp

@@ -22,6 +22,9 @@
 
 
 #include "PreCompiled.h"
+#ifndef _PreComp_
+# include <QPushButton>
+#endif
 
 #include "DlgInputDialogImp.h"
 #include "SpinBox.h"