Index: sheets/part/CanvasBase.cpp
--- sheets/part/CanvasBase.cpp.orig
+++ sheets/part/CanvasBase.cpp
@@ -230,7 +230,7 @@ bool CanvasBase::eventFilter(QObject *o, QEvent *e)
 
 void CanvasBase::validateSelection()
 {
-    register Sheet * const sheet = activeSheet();
+     Sheet * const sheet = activeSheet();
     if (!sheet)
         return;
 #if 0
@@ -443,7 +443,7 @@ void CanvasBase::paint(QPainter* painter, const QRectF
     if (doc()->map()->isLoading() || isViewLoading())
         return;
 
-    register Sheet * const sheet = activeSheet();
+     Sheet * const sheet = activeSheet();
     if (!sheet)
         return;
 
@@ -513,7 +513,7 @@ bool CanvasBase::dragEnter(const QMimeData* mimeData)
 
 bool CanvasBase::dragMove(const QMimeData* mimeData, const QPointF& eventPos, const QObject *source)
 {
-    register Sheet * const sheet = activeSheet();
+     Sheet * const sheet = activeSheet();
     if (!sheet) {
         return false;
     }
@@ -596,7 +596,7 @@ void CanvasBase::dragLeave()
 
 bool CanvasBase::drop(const QMimeData* mimeData, const QPointF& eventPos, const QObject *source)
 {
-    register Sheet * const sheet = activeSheet();
+     Sheet * const sheet = activeSheet();
     // FIXME Sheet protection: Not all cells have to be protected.
     if (!sheet || sheet->isProtected()) {
         return false;
@@ -656,7 +656,7 @@ bool CanvasBase::drop(const QMimeData* mimeData, const
 
 QRect CanvasBase::viewToCellCoordinates(const QRectF& viewRect) const
 {
-    register Sheet * const sheet = activeSheet();
+     Sheet * const sheet = activeSheet();
     if (!sheet)
         return QRect();
 
@@ -685,7 +685,7 @@ QRect CanvasBase::visibleCells() const
 
 QRectF CanvasBase::cellCoordinatesToView(const QRect& cellRange) const
 {
-    register Sheet * const sheet = activeSheet();
+     Sheet * const sheet = activeSheet();
     if (!sheet)
         return QRectF();
 
@@ -706,7 +706,7 @@ QRectF CanvasBase::cellCoordinatesToView(const QRect& 
 
 void CanvasBase::showToolTip(const QPoint& p)
 {
-    register Sheet * const sheet = activeSheet();
+     Sheet * const sheet = activeSheet();
     if (!sheet)
         return;
     SheetView * const sheetView = this->sheetView(sheet);