--- a/src/blitter/null.hpp	Fri Aug 15 19:18:55 2008 +0000
+++ b/src/blitter/null.hpp	Fri Aug 15 22:06:58 2008 +0000
@@ -28,6 +28,7 @@
 	/* virtual */ Blitter::PaletteAnimation UsePaletteAnimation() { return Blitter::PALETTE_ANIMATION_NONE; };
 
 	/* virtual */ const char *GetName() { return "null"; }
+	/* virtual */ int GetBytesPerPixel() { return 0; }
 };
 
 class FBlitter_Null: public BlitterFactory<FBlitter_Null> {