search for: xc_builder

Hi, I''m playing with the builders in libxc. I am having trouble debugging the thing. I was wondering what options I have. - When I run ''xm create'', what process calls down to the xc_builder stuff? Can I attach to it with gdb? - Is there any way to spit out debug output (printf?)? Where would it go? - If I make changes and do a make install in tools, what do I have to restart to put the new code into use? xend restart? Any hints or tips appreciated. Tim Newsham htt...