diff -NrU5 quickplot-0.8.13.old/Graph.cpp quickplot-0.8.13/Graph.cpp
--- quickplot-0.8.13.old/Graph.cpp	2006-08-05 17:45:34.000000000 +0200
+++ quickplot-0.8.13/Graph.cpp	2008-05-06 00:42:00.000000000 +0200
@@ -1178,34 +1178,34 @@
   gtk_idle_add(GraphTab_deleteLater, &deleteLater);
 }
 
 
 
-SigC::Signal1<void, Graph *> Graph::signal_addedPlot(void)
+sigc::signal1<void, Graph *> Graph::signal_addedPlot(void)
 {
   return m_signal_addedPlot;
 }
 
-SigC::Signal2<void, Graph *, Plot *> Graph::signal_removedPlot(void)
+sigc::signal2<void, Graph *, Plot *> Graph::signal_removedPlot(void)
 {
   return m_signal_removedPlot;
 }
 
-SigC::Signal1<void, Graph *> Graph::m_signal_addedPlot;
+sigc::signal1<void, Graph *> Graph::m_signal_addedPlot;
 
-SigC::Signal2<void, Graph *, Plot *> Graph::m_signal_removedPlot;
+sigc::signal2<void, Graph *, Plot *> Graph::m_signal_removedPlot;
 
 
 
-SigC::Signal1<void, Graph *> Graph::signal_changedSameScale(void)
+sigc::signal1<void, Graph *> Graph::signal_changedSameScale(void)
 {
   return m_signal_changedSameScale;
 }
 
-SigC::Signal1<void, Graph *> Graph::m_signal_changedSameScale;
+sigc::signal1<void, Graph *> Graph::m_signal_changedSameScale;
 
 
-SigC::Signal0<void> Graph::signal_backgroundColorChanged(void)
+sigc::signal0<void> Graph::signal_backgroundColorChanged(void)
 {
   return m_signal_backgroundColorChanged;
 }
 
diff -NrU5 quickplot-0.8.13.old/Graph.h quickplot-0.8.13/Graph.h
--- quickplot-0.8.13.old/Graph.h	2006-08-03 22:56:56.000000000 +0200
+++ quickplot-0.8.13/Graph.h	2008-05-06 00:41:49.000000000 +0200
@@ -66,14 +66,14 @@
   bool showGridNumbers;
 
   inline bool isShowingGrid() { return (showAutoGrid && isSameScale); }
   /************************************************************/
 
-  static SigC::Signal1<void, Graph *> signal_changedSameScale(void);
-  static SigC::Signal1<void, Graph *> signal_addedPlot(void);
-  static SigC::Signal2<void, Graph *, Plot *> signal_removedPlot(void);
-  SigC::Signal0<void> signal_backgroundColorChanged(void);
+  static sigc::signal1<void, Graph *> signal_changedSameScale(void);
+  static sigc::signal1<void, Graph *> signal_addedPlot(void);
+  static sigc::signal2<void, Graph *, Plot *> signal_removedPlot(void);
+  sigc::signal0<void> signal_backgroundColorChanged(void);
 
   
   Gdk::Color gridColor, backgroundColor;
 
   int gridXLineSpace, gridYLineSpace, gridLineWidth;
@@ -103,16 +103,16 @@
 
   void setPickerType(void);
 
   void setStatusXYValues(gdouble x, gdouble y);
   
-  static SigC::Signal1<void, Graph *> m_signal_changedSameScale;
+  static sigc::signal1<void, Graph *> m_signal_changedSameScale;
   
-  static SigC::Signal1<void, Graph *> m_signal_addedPlot;
-  static SigC::Signal2<void, Graph *, Plot *> m_signal_removedPlot;
+  static sigc::signal1<void, Graph *> m_signal_addedPlot;
+  static sigc::signal2<void, Graph *, Plot *> m_signal_removedPlot;
 
-  SigC::Signal0<void> m_signal_backgroundColorChanged;
+  sigc::signal0<void> m_signal_backgroundColorChanged;
 
   
   // used by createPlot(Field *x, Field *y) 
   void checkZoomLevelForNewPlot(Plot *plot);
 
diff -NrU5 quickplot-0.8.13.old/MainWindow.cpp quickplot-0.8.13/MainWindow.cpp
--- quickplot-0.8.13.old/MainWindow.cpp	2006-08-07 20:12:11.000000000 +0200
+++ quickplot-0.8.13/MainWindow.cpp	2008-05-06 00:42:00.000000000 +0200
@@ -758,10 +758,10 @@
   d->to= this;
   d->from = graphsNotebook;
   gtk_idle_add(copyGraphNotebooks, d);
 }
 
-SigC::Signal1<void, Graph *> GraphsNotebook::signal_tabLabelChanged(void)
+sigc::signal1<void, Graph *> GraphsNotebook::signal_tabLabelChanged(void)
 {
   return m_signal_tabLabelChanged;
 }
 
diff -NrU5 quickplot-0.8.13.old/MainWindow.h quickplot-0.8.13/MainWindow.h
--- quickplot-0.8.13.old/MainWindow.h	2006-08-03 22:56:56.000000000 +0200
+++ quickplot-0.8.13/MainWindow.h	2008-05-06 00:41:49.000000000 +0200
@@ -17,12 +17,12 @@
   // to "signal" the View Menu in MainMenuBar.cpp, to add a runtime
   // "show/hide tabs option.  Is there a signal_show_tabs() or like
   // method???  It's not listed.
   void set_show_tabs(bool show_tabs = true);
 
-  SigC::Signal1<void, Graph *> signal_tabLabelChanged(void);
-  SigC::Signal1<void, Graph *> m_signal_tabLabelChanged;
+  sigc::signal1<void, Graph *> signal_tabLabelChanged(void);
+  sigc::signal1<void, Graph *> m_signal_tabLabelChanged;
   
 private:
   MainWindow *mainWindow;
 };
 
diff -NrU5 quickplot-0.8.13.old/PlotConfig.h quickplot-0.8.13/PlotConfig.h
--- quickplot-0.8.13.old/PlotConfig.h	2006-08-03 22:56:56.000000000 +0200
+++ quickplot-0.8.13/PlotConfig.h	2008-05-06 00:41:49.000000000 +0200
@@ -50,11 +50,11 @@
   CheckButton showPointsCB;
   Button pointColorB;
   ValueSlider pointSizeVS;
   // RadioButton style1, style2 etc ...
 
-  SigC::Connection plotChanged_connection;
+  sigc::connection plotChanged_connection;
 
   void setValues(void);
   
   // slots
   void on_plotChanged(void);
diff -NrU5 quickplot-0.8.13.old/Plot.cpp quickplot-0.8.13/Plot.cpp
--- quickplot-0.8.13.old/Plot.cpp	2006-08-03 22:56:56.000000000 +0200
+++ quickplot-0.8.13/Plot.cpp	2008-05-06 00:42:00.000000000 +0200
@@ -501,11 +501,11 @@
   m_signal_changed.emit();
 }
 
 // Emitted when the lineColor, pointColor, lineWidth or pointSize
 // changes.
-SigC::Signal0<void> Plot::signal_changed(void)
+sigc::signal0<void> Plot::signal_changed(void)
 {
   return m_signal_changed;
 }
 
 // pick a Y value.
@@ -661,11 +661,11 @@
   xpick = (X - currentZoomLevel->shiftX)/currentZoomLevel->scaleX;
   ypick = (Y - currentZoomLevel->shiftY)/currentZoomLevel->scaleY;
   m_signal_valueDisplay.emit(xpick, ypick);           
 }
 
-SigC::Signal2<void, value_t, value_t> Plot::signal_valueDisplay(void)
+sigc::signal2<void, value_t, value_t> Plot::signal_valueDisplay(void)
 {
   return m_signal_valueDisplay;
 }
 
 
diff -NrU5 quickplot-0.8.13.old/Plot.h quickplot-0.8.13/Plot.h
--- quickplot-0.8.13.old/Plot.h	2006-08-03 22:56:56.000000000 +0200
+++ quickplot-0.8.13/Plot.h	2008-05-06 00:41:49.000000000 +0200
@@ -99,30 +99,30 @@
   
   Graph *graph;
 
   // Emitted when the lineColor, pointColor, lineWidth, pointSize,
   // showLines and showPoints.
-  SigC::Signal0<void> signal_changed(void);
+  sigc::signal0<void> signal_changed(void);
 
   
   int emitDisplayValues(int X);
   void emitInterpolatedDisplayValues(int X);
   void emitDisplayValues(int X, int Y);
 
-  SigC::Signal2<void, value_t, value_t> signal_valueDisplay(void);
+  sigc::signal2<void, value_t, value_t> signal_valueDisplay(void);
   
   value_t xpick, ypick;
 
 protected:
 
 private:
 
   bool showPoints, showLines;
   
-  SigC::Signal0<void> m_signal_changed;
+  sigc::signal0<void> m_signal_changed;
 
-  SigC::Signal2<void, value_t, value_t> m_signal_valueDisplay;
+  sigc::signal2<void, value_t, value_t> m_signal_valueDisplay;
 
   Gdk::Color lineColor, pointColor;
 
   // Cull and Draw.
   void cullDrawLine(value_t fromX, value_t fromY, value_t toX, value_t toY);
diff -NrU5 quickplot-0.8.13.old/PlotLister.h quickplot-0.8.13/PlotLister.h
--- quickplot-0.8.13.old/PlotLister.h	2006-08-03 22:56:56.000000000 +0200
+++ quickplot-0.8.13/PlotLister.h	2008-05-06 00:41:49.000000000 +0200
@@ -22,11 +22,11 @@
   bool limitSize;
   
   Glib::RefPtr<Gdk::Window> win;
   Glib::RefPtr<Gdk::GC> gc;
 
-  SigC::Connection plotChangeConnection, bgConnection;
+  sigc::connection plotChangeConnection, bgConnection;
 };
 
 
 
 class Row
@@ -50,18 +50,18 @@
   
   int row;
   Table *table;
   MainWindow *mainWindow;
   Plot *plot;
-  SigC::Connection valueDisplay_connection, makePlotConfig_connection;
+  sigc::connection valueDisplay_connection, makePlotConfig_connection;
   
   void add(Widget &w, int col);
   void makePlotConfig(void);
   //void setLabelSize(Entry &l);
   //void afterRealize(void);
 
-  //SigC::Connection afterRealizeConnection;
+  //sigc::connection afterRealizeConnection;
 };
 
 
 
 class PlotLister : public Window
diff -NrU5 quickplot-0.8.13.old/Source.cpp quickplot-0.8.13/Source.cpp
--- quickplot-0.8.13.old/Source.cpp	2006-08-03 22:56:56.000000000 +0200
+++ quickplot-0.8.13/Source.cpp	2008-05-06 00:42:00.000000000 +0200
@@ -205,20 +205,20 @@
 {
   gtk_idle_add(deleteSLater, &dl);
 }
 
 
-SigC::Signal1<void, Source *> Source::signal_addedSource()
+sigc::signal1<void, Source *> Source::signal_addedSource()
 {
   return m_signal_addedSource;
 }
 
-SigC::Signal1<void, Source *> Source::m_signal_addedSource;
+sigc::signal1<void, Source *> Source::m_signal_addedSource;
 
 
-SigC::Signal1<void, Source *> Source::signal_removedSource()
+sigc::signal1<void, Source *> Source::signal_removedSource()
 {
   return m_signal_removedSource;
 }
 
-SigC::Signal1<void, Source *> Source::m_signal_removedSource;
+sigc::signal1<void, Source *> Source::m_signal_removedSource;
 
diff -NrU5 quickplot-0.8.13.old/Source.h quickplot-0.8.13/Source.h
--- quickplot-0.8.13.old/Source.h	2006-08-03 22:56:56.000000000 +0200
+++ quickplot-0.8.13/Source.h	2008-05-06 00:41:49.000000000 +0200
@@ -48,23 +48,23 @@
 
  
   inline const enum  TYPE getType(void){ return type; }
   inline const char *getTypeString(void){ return TYPE_STRING[type]; }
 
-  static SigC::Signal1<void, Source *> signal_addedSource();
-  static SigC::Signal1<void, Source *> signal_removedSource();
+  static sigc::signal1<void, Source *> signal_addedSource();
+  static sigc::signal1<void, Source *> signal_removedSource();
 
   // Delete this object later.
   void deleteLater(void);
 
   std::list<CloseSourceMenuItem *> closeSourceMenuItems;
   
   
 protected:
   
-  static SigC::Signal1<void, Source *> m_signal_addedSource;
-  static SigC::Signal1<void, Source *> m_signal_removedSource;
+  static sigc::signal1<void, Source *> m_signal_addedSource;
+  static sigc::signal1<void, Source *> m_signal_removedSource;
 
   inline void setType(enum TYPE t) { type = t; }
   char *fileName, *baseFileName;
   void addCloseMenus(const char *label);
 
diff -NrU5 quickplot-0.8.13.old/ValueSlider.cpp quickplot-0.8.13/ValueSlider.cpp
--- quickplot-0.8.13.old/ValueSlider.cpp	2006-08-03 22:56:56.000000000 +0200
+++ quickplot-0.8.13/ValueSlider.cpp	2008-05-06 00:42:00.000000000 +0200
@@ -173,11 +173,11 @@
     else
       return false; // no value change
   }
 }
 
-SigC::Signal0<void> ValueSlider::signal_valueChanged()
+sigc::signal0<void> ValueSlider::signal_valueChanged()
 {
   return m_signal_valueChanged;
 }
 
 
@@ -327,11 +327,11 @@
     else
       return false; // no value change
   }
 }
 
-SigC::Signal0<void> DoubleValueSlider::signal_valueChanged()
+sigc::signal0<void> DoubleValueSlider::signal_valueChanged()
 {
   return m_signal_valueChanged;
 }
 
 
@@ -477,10 +477,10 @@
 int LogValueSlider::getValue(void)
 {
   return (int) pow(10.0, value);
 }
 
-SigC::Signal0<void> LogValueSlider::signal_valueChanged()
+sigc::signal0<void> LogValueSlider::signal_valueChanged()
 {
   return m_signal_valueChanged;
 }
 
diff -NrU5 quickplot-0.8.13.old/ValueSlider.h quickplot-0.8.13/ValueSlider.h
--- quickplot-0.8.13.old/ValueSlider.h	2006-08-03 22:56:56.000000000 +0200
+++ quickplot-0.8.13/ValueSlider.h	2008-05-06 00:41:49.000000000 +0200
@@ -18,14 +18,14 @@
 
   int value;
   double maxmax;
 
 public:
-  SigC::Signal0<void> signal_valueChanged();
+  sigc::signal0<void> signal_valueChanged();
 
 private:
-  SigC::Signal0<void> m_signal_valueChanged;
+  sigc::signal0<void> m_signal_valueChanged;
 
   bool setScaleToEntry(void);
 
   bool setEntryToScale(void);
 
@@ -51,14 +51,14 @@
   Entry entry;
 
   double value, maxmax;
 
 public:
-  SigC::Signal0<void> signal_valueChanged();
+  sigc::signal0<void> signal_valueChanged();
 
 private:
-  SigC::Signal0<void> m_signal_valueChanged;
+  sigc::signal0<void> m_signal_valueChanged;
 
   bool setScaleToEntry(void);
 
   bool setEntryToScale(void);
 
@@ -86,14 +86,14 @@
 
   // log of getValue()
   double value;
 
 public:
-  SigC::Signal0<void> signal_valueChanged();
+  sigc::signal0<void> signal_valueChanged();
 
 private:
-  SigC::Signal0<void> m_signal_valueChanged;
+  sigc::signal0<void> m_signal_valueChanged;
 
   bool setScaleToEntry(void);
 
   bool setEntryToScale(void);