commit x64 compilation from lulu cause the other branch dont seems to compile properly at home

include/engine/gpu/gpu_fbo.h

@@ -52,6 +52,7 @@ virtual	void			SetDepthTexture(Render::Texture *t)
 virtual	void			Blit(FBO *out, const iRect &src, const iRect &dst, bool color = true, bool depth = true) = 0;
 		/// Transfer color pixels into a CPU based buffer, this buffer is expected to be big enough to hold the required region in RGBA format.
 virtual	void			ReadColorPixels(char *out, int x, int y, int w, int h) = 0;
+virtual	void			ReadDepthPixels(float *out) = 0;
 
 		/// Create FBO.
 virtual	bool			Create() = 0;