?? warning: ANSI C++ forbids implicit conversion from `void *' in initialization ???

[Chris Seberino <seberino spawar navy mil>]

I need to sometimes initialize an object to NULL and get this
message.  How avoid???

warning: ANSI C++ forbids implicit conversion from `void *' in initialization

Here is the pixmap class that causes this (outside of main() )

class Pixmaps {
   private:
   public:
      static GdkPixmap* middleMassTimeSeriesPlot;     
      static GdkPixmap* phaseSpacePlot;
      static GdkPixmap* totalTimeSeriesPlot;     
      static GdkPixmap* powerSpectralDensityPlot;
};
GdkPixmap* Pixmaps::middleMassTimeSeriesPlot = NULL;
GdkPixmap* Pixmaps::phaseSpacePlot           = NULL;
GdkPixmap* Pixmaps::totalTimeSeriesPlot      = NULL;
GdkPixmap* Pixmaps::powerSpectralDensityPlot = NULL;

CS
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